Merge 24f614b580 into 4dea2f1eb6

.git-blame-ignore-revs

@@ -0,0 +1,11 @@
+# .git-blame-ignore-revs
+
+# Use this file when viewing blame:
+#   git blame --ignore-revs-file .git-blame-ignore-revs
+# Or configure git to use always this file:
+#   git config blame.ignoreRevsFile .git-blame-ignore-revs
+
+# Accumulated patch to binarize and indent code
+9deb294328bb3f9eb6bd2c0e7cd500732e9b5830
+# Result of running "make format indent" for the first time
+6b7d15f0271686b6902a0edc82f407e529b35a90

Makefile.in

@@ -13,6 +13,7 @@ SED = @SED@
 ERL = @ERL@
 EPMD = @EPMD@
 IEX = @IEX@
+EMACS = @EMACS@
 
 INSTALLUSER=@INSTALLUSER@
 INSTALLGROUP=@INSTALLGROUP@
@@ -266,11 +267,15 @@ _build/edoc/logo.png: edoc_compile
 #' format / indent
 #
 
+.SILENT: format indent
+
+FORMAT_LOG=/tmp/ejabberd-format.log
+
 format:
-	tools/rebar3-format.sh $(REBAR3)
+	tools/rebar3-format.sh $(FORMAT_LOG) $(REBAR3)
 
 indent:
-	tools/emacs-indent.sh
+	tools/emacs-indent.sh $(FORMAT_LOG) $(EMACS)
 
 #.
 #' copy-files
@@ -714,7 +719,7 @@ help:
 	@echo "  translations   Extract translation files"
 	@echo "  TAGS           Generate tags file for text editors"
 	@echo ""
-	@echo "  format         Format source code using rebar3_format"
+	@echo "  format         Format source code using efmt [rebar3]"
 	@echo "  indent         Indent source code using erlang-mode [emacs]"
 	@echo ""
 	@echo "  dialyzer       Run Dialyzer static analyzer"

_checkouts/configure_deps/rebar.config

@@ -1,2 +1,2 @@
 {erl_opts, [debug_info]}.
-{deps, []}.
+{deps, []}.

_checkouts/configure_deps/src/configure_deps.app.src

@@ -3,7 +3,6 @@
   {vsn, "0.0.1"},
   {registered, []},
   {applications, [kernel, stdlib]},
-  {env,[]},
+  {env, []},
   {modules, []},
-  {links, []}
- ]}.
+  {links, []}]}.

_checkouts/configure_deps/src/configure_deps.erl

@@ -2,6 +2,7 @@
 
 -export([init/1]).
 
+
 -spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
 init(State) ->
     {ok, State1} = configure_deps_prv:init(State),

_checkouts/configure_deps/src/configure_deps_prv.erl

@@ -3,24 +3,24 @@
 -export([init/1, do/1, format_error/1]).
 
 -define(PROVIDER, 'configure-deps').
--define(DEPS, [install_deps]).
+-define(DEPS,     [install_deps]).
+
 
 %% ===================================================================
 %% Public API
 %% ===================================================================
 -spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
 init(State) ->
-    Provider = providers:create([
-	        {namespace, default},
-            {name, ?PROVIDER},            % The 'user friendly' name of the task
-            {module, ?MODULE},            % The module implementation of the task
-            {bare, true},                 % The task can be run by the user, always true
-            {deps, ?DEPS},                % The list of dependencies
-            {example, "rebar3 configure-deps"}, % How to use the plugin
-            {opts, []},                   % list of options understood by the plugin
-            {short_desc, "Explicitly run ./configure for dependencies"},
-            {desc, "A rebar plugin to allow explicitly running ./configure on dependencies. Useful if dependencies might change prior to compilation when configure is run."}
-    ]),
+    Provider = providers:create(
+                 [{namespace, default},
+                  {name, ?PROVIDER},  % The 'user friendly' name of the task
+                  {module, ?MODULE},  % The module implementation of the task
+                  {bare, true},  % The task can be run by the user, always true
+                  {deps, ?DEPS},  % The list of dependencies
+                  {example, "rebar3 configure-deps"},  % How to use the plugin
+                  {opts, []},  % list of options understood by the plugin
+                  {short_desc, "Explicitly run ./configure for dependencies"},
+                  {desc, "A rebar plugin to allow explicitly running ./configure on dependencies. Useful if dependencies might change prior to compilation when configure is run."}]),
     {ok, rebar_state:add_provider(State, Provider)}.
 
 
@@ -30,25 +30,30 @@ do(State) ->
     lists:foreach(fun do_app/1, Apps),
     {ok, State}.
 
+
 exec_configure({'configure-deps', Cmd}, Dir) ->
-	rebar_utils:sh(Cmd, [{cd, Dir}, {use_stdout, true}]);
+    rebar_utils:sh(Cmd, [{cd, Dir}, {use_stdout, true}]);
 exec_configure(_, Acc) -> Acc.
 
+
 parse_pre_hooks({pre_hooks, PreHooks}, Acc) ->
     lists:foldl(fun exec_configure/2, Acc, PreHooks);
 parse_pre_hooks(_, Acc) -> Acc.
 
+
 parse_additions({add, App, Additions}, {MyApp, Dir}) when App == MyApp ->
     lists:foldl(fun parse_pre_hooks/2, Dir, Additions),
-	{MyApp, Dir};
+    {MyApp, Dir};
 parse_additions(_, Acc) -> Acc.
 
+
 do_app(App) ->
     Dir = rebar_app_info:dir(App),
-	Opts = rebar_app_info:opts(App),
-	Overrides = rebar_opts:get(Opts, overrides),
+    Opts = rebar_app_info:opts(App),
+    Overrides = rebar_opts:get(Opts, overrides),
     lists:foldl(fun parse_additions/2, {binary_to_atom(rebar_app_info:name(App), utf8), Dir}, Overrides).
 
--spec format_error(any()) ->  iolist().
+
+-spec format_error(any()) -> iolist().
 format_error(Reason) ->
     io_lib:format("~p", [Reason]).

configure.ac

@@ -88,6 +88,8 @@ AC_PATH_PROG([ESCRIPT], [escript], [], [$ERLANG_ROOT_DIR/bin])
 #locating make
 AC_CHECK_PROG([MAKE], [make], [make], [])
 
+AC_PATH_TOOL(EMACS, emacs, , [${extra_erl_path}$PATH])
+
 if test "x$ESCRIPT" = "x"; then
    AC_MSG_ERROR(['escript' was not found])
 fi

include/ELDAPv3.hrl

@@ -3,79 +3,101 @@
 %% SEQUENCE and SET, and macro definitions for each value
 %% definition,in module ELDAPv3
 
+-record('LDAPMessage', {
+          messageID, protocolOp, controls = asn1_NOVALUE
+         }).
 
+-record('AttributeValueAssertion', {
+          attributeDesc, assertionValue
+         }).
 
--record('LDAPMessage',{
-messageID, protocolOp, controls = asn1_NOVALUE}).
+-record('Attribute', {
+          type, vals
+         }).
 
--record('AttributeValueAssertion',{
-attributeDesc, assertionValue}).
+-record('LDAPResult', {
+          resultCode, matchedDN, errorMessage, referral = asn1_NOVALUE
+         }).
 
--record('Attribute',{
-type, vals}).
+-record('Control', {
+          controlType, criticality = asn1_DEFAULT, controlValue = asn1_NOVALUE
+         }).
 
--record('LDAPResult',{
-resultCode, matchedDN, errorMessage, referral = asn1_NOVALUE}).
+-record('BindRequest', {
+          version, name, authentication
+         }).
 
--record('Control',{
-controlType, criticality = asn1_DEFAULT, controlValue = asn1_NOVALUE}).
+-record('SaslCredentials', {
+          mechanism, credentials = asn1_NOVALUE
+         }).
 
--record('BindRequest',{
-version, name, authentication}).
+-record('BindResponse', {
+          resultCode, matchedDN, errorMessage, referral = asn1_NOVALUE, serverSaslCreds = asn1_NOVALUE
+         }).
 
--record('SaslCredentials',{
-mechanism, credentials = asn1_NOVALUE}).
+-record('SearchRequest', {
+          baseObject, scope, derefAliases, sizeLimit, timeLimit, typesOnly, filter, attributes
+         }).
 
--record('BindResponse',{
-resultCode, matchedDN, errorMessage, referral = asn1_NOVALUE, serverSaslCreds = asn1_NOVALUE}).
+-record('SubstringFilter', {
+          type, substrings
+         }).
 
--record('SearchRequest',{
-baseObject, scope, derefAliases, sizeLimit, timeLimit, typesOnly, filter, attributes}).
+-record('MatchingRuleAssertion', {
+          matchingRule = asn1_NOVALUE, type = asn1_NOVALUE, matchValue, dnAttributes = asn1_DEFAULT
+         }).
 
--record('SubstringFilter',{
-type, substrings}).
+-record('SearchResultEntry', {
+          objectName, attributes
+         }).
 
--record('MatchingRuleAssertion',{
-matchingRule = asn1_NOVALUE, type = asn1_NOVALUE, matchValue, dnAttributes = asn1_DEFAULT}).
+-record('PartialAttributeList_SEQOF', {
+          type, vals
+         }).
 
--record('SearchResultEntry',{
-objectName, attributes}).
+-record('ModifyRequest', {
+          object, modification
+         }).
 
--record('PartialAttributeList_SEQOF',{
-type, vals}).
+-record('ModifyRequest_modification_SEQOF', {
+          operation, modification
+         }).
 
--record('ModifyRequest',{
-object, modification}).
+-record('AttributeTypeAndValues', {
+          type, vals
+         }).
 
--record('ModifyRequest_modification_SEQOF',{
-operation, modification}).
+-record('AddRequest', {
+          entry, attributes
+         }).
 
--record('AttributeTypeAndValues',{
-type, vals}).
+-record('AttributeList_SEQOF', {
+          type, vals
+         }).
 
--record('AddRequest',{
-entry, attributes}).
+-record('ModifyDNRequest', {
+          entry, newrdn, deleteoldrdn, newSuperior = asn1_NOVALUE
+         }).
 
--record('AttributeList_SEQOF',{
-type, vals}).
+-record('CompareRequest', {
+          entry, ava
+         }).
 
--record('ModifyDNRequest',{
-entry, newrdn, deleteoldrdn, newSuperior = asn1_NOVALUE}).
+-record('ExtendedRequest', {
+          requestName, requestValue = asn1_NOVALUE
+         }).
 
--record('CompareRequest',{
-entry, ava}).
+-record('ExtendedResponse', {
+          resultCode, matchedDN, errorMessage, referral = asn1_NOVALUE, responseName = asn1_NOVALUE, response = asn1_NOVALUE
+         }).
 
--record('ExtendedRequest',{
-requestName, requestValue = asn1_NOVALUE}).
+-record('PasswdModifyRequestValue', {
+          userIdentity = asn1_NOVALUE, oldPasswd = asn1_NOVALUE, newPasswd = asn1_NOVALUE
+         }).
 
--record('ExtendedResponse',{
-resultCode, matchedDN, errorMessage, referral = asn1_NOVALUE, responseName = asn1_NOVALUE, response = asn1_NOVALUE}).
+-record('PasswdModifyResponseValue', {
+          genPasswd = asn1_NOVALUE
+         }).
 
--record('PasswdModifyRequestValue',{
-userIdentity = asn1_NOVALUE, oldPasswd = asn1_NOVALUE, newPasswd = asn1_NOVALUE}).
-
--record('PasswdModifyResponseValue',{
-genPasswd = asn1_NOVALUE}).
-
--define('maxInt', 2147483647).
--define('passwdModifyOID', [49,46,51,46,54,46,49,46,52,46,49,46,52,50,48,51,46,49,46,49,49,46,49]).
+-define('maxInt',          2147483647).
+-define('passwdModifyOID', [49, 46, 51, 46, 54, 46, 49, 46, 52, 46, 49, 46, 52, 50, 48, 51, 46, 49, 46, 49, 49, 46, 49]).

include/bosh.hrl

@@ -19,33 +19,36 @@
 %%%----------------------------------------------------------------------
 
 -define(CT_XML,
-	{<<"Content-Type">>, <<"text/xml; charset=utf-8">>}).
+        {<<"Content-Type">>, <<"text/xml; charset=utf-8">>}).
 
 -define(CT_PLAIN,
-	{<<"Content-Type">>, <<"text/plain">>}).
+        {<<"Content-Type">>, <<"text/plain">>}).
 
 -define(CT_JSON,
         {<<"Content-Type">>, <<"application/json">>}).
 
 -define(AC_ALLOW_ORIGIN,
-	{<<"Access-Control-Allow-Origin">>, <<"*">>}).
+        {<<"Access-Control-Allow-Origin">>, <<"*">>}).
 
 -define(AC_ALLOW_METHODS,
-	{<<"Access-Control-Allow-Methods">>,
-	 <<"GET, POST, OPTIONS">>}).
+        {<<"Access-Control-Allow-Methods">>,
+         <<"GET, POST, OPTIONS">>}).
 
 -define(AC_ALLOW_HEADERS,
-	{<<"Access-Control-Allow-Headers">>,
-	 <<"Content-Type">>}).
+        {<<"Access-Control-Allow-Headers">>,
+         <<"Content-Type">>}).
 
 -define(AC_MAX_AGE,
-	{<<"Access-Control-Max-Age">>, <<"86400">>}).
+        {<<"Access-Control-Max-Age">>, <<"86400">>}).
 
 -define(OPTIONS_HEADER,
-	[?CT_PLAIN, ?AC_ALLOW_ORIGIN, ?AC_ALLOW_METHODS,
-	 ?AC_ALLOW_HEADERS, ?AC_MAX_AGE]).
+        [?CT_PLAIN,
+         ?AC_ALLOW_ORIGIN,
+         ?AC_ALLOW_METHODS,
+         ?AC_ALLOW_HEADERS,
+         ?AC_MAX_AGE]).
 
 -define(HEADER(CType),
-	[CType, ?AC_ALLOW_ORIGIN, ?AC_ALLOW_HEADERS]).
+        [CType, ?AC_ALLOW_ORIGIN, ?AC_ALLOW_HEADERS]).
 
 -define(BOSH_CACHE, bosh_cache).

include/ejabberd_auth.hrl

@@ -18,5 +18,7 @@
 %%%
 %%%----------------------------------------------------------------------
 
--record(passwd, {us = {<<"">>, <<"">>} :: {binary(), binary()} | {binary(), binary(), atom()} | '$1',
-                 password = <<"">> :: binary() | scram() | '_'}).
+-record(passwd, {
+          us = {<<"">>, <<"">>} :: {binary(), binary()} | {binary(), binary(), atom()} | '$1',
+          password = <<"">> :: binary() | scram() | '_'
+         }).

include/ejabberd_commands.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -type aterm() :: {atom(), atype()}.
 -type atype() :: integer | string | binary | any | atom |
@@ -104,4 +106,3 @@
                                                 args_example            :: none | [any()] | '_',
                                                 result_example          :: any()
                                                }.
-

include/ejabberd_http.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -record(request,
 	{method            :: method(),

include/ejabberd_oauth.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -record(oauth_token, {
           token = <<"">>           :: binary() | '_',

include/ejabberd_router.hrl

@@ -1,3 +1,6 @@
+%% @efmt:off
+%% @indent-begin
+
 -define(ROUTES_CACHE, routes_cache).
 
 -type local_hint() :: integer() | {apply, atom(), atom()}.

include/ejabberd_sm.hrl

@@ -27,10 +27,13 @@
 -record(session_counter, {vhost, count}).
 -type sid() :: {erlang:timestamp(), pid()}.
 -type ip() :: {inet:ip_address(), inet:port_number()} | undefined.
--type info() :: [{conn, atom()} | {ip, ip()} | {node, atom()}
-                 | {oor, boolean()} | {auth_module, atom()}
-                 | {num_stanzas_in, non_neg_integer()}
-		 | {atom(), term()}].
+-type info() :: [{conn, atom()} |
+                 {ip, ip()} |
+                 {node, atom()} |
+                 {oor, boolean()} |
+                 {auth_module, atom()} |
+                 {num_stanzas_in, non_neg_integer()} |
+                 {atom(), term()}].
 -type prio() :: undefined | integer().
 
 -endif.

include/ejabberd_sql.hrl

@@ -30,46 +30,62 @@
 -define(SQL_INSERT(Table, Fields), ?SQL_INSERT_MARK(Table, Fields)).
 
 -ifdef(COMPILER_REPORTS_ONLY_LINES).
--record(sql_query, {hash :: binary(),
-		    format_query :: fun(),
-		    format_res :: fun(),
-		    args :: fun(),
-		    flags :: non_neg_integer(),
-		    loc :: {module(), pos_integer()}}).
+-record(sql_query, {
+          hash :: binary(),
+          format_query :: fun(),
+          format_res :: fun(),
+          args :: fun(),
+          flags :: non_neg_integer(),
+          loc :: {module(), pos_integer()}
+         }).
 -else.
--record(sql_query, {hash :: binary(),
-		    format_query :: fun(),
-		    format_res :: fun(),
-		    args :: fun(),
-		    flags :: non_neg_integer(),
-		    loc :: {module(), {pos_integer(), pos_integer()}}}).
+-record(sql_query, {
+          hash :: binary(),
+          format_query :: fun(),
+          format_res :: fun(),
+          args :: fun(),
+          flags :: non_neg_integer(),
+          loc :: {module(), {pos_integer(), pos_integer()}}
+         }).
 -endif.
 
--record(sql_escape, {string :: fun((binary()) -> binary()),
-		     integer :: fun((integer()) -> binary()),
-		     boolean :: fun((boolean()) -> binary()),
-		     in_array_string :: fun((binary()) -> binary()),
-		     like_escape :: fun(() -> binary())}).
+-record(sql_escape, {
+          string :: fun((binary()) -> binary()),
+          integer :: fun((integer()) -> binary()),
+          boolean :: fun((boolean()) -> binary()),
+          in_array_string :: fun((binary()) -> binary()),
+          like_escape :: fun(() -> binary())
+         }).
 
+-record(sql_index, {
+          columns,
+          unique = false :: boolean(),
+          meta = #{}
+         }).
+-record(sql_column, {
+          name :: binary(),
+          type,
+          default = false,
+          opts = []
+         }).
+-record(sql_table, {
+          name :: binary(),
+          columns :: [#sql_column{}],
+          indices = [] :: [#sql_index{}],
+          post_create
+         }).
+-record(sql_schema, {
+          version :: integer(),
+          tables :: [#sql_table{}],
+          update = []
+         }).
+-record(sql_references, {
+          table :: binary(),
+          column :: binary()
+         }).
 
--record(sql_index, {columns,
-                    unique = false :: boolean(),
-                    meta = #{}}).
--record(sql_column, {name :: binary(),
-                     type,
-                     default = false,
-                     opts = []}).
--record(sql_table, {name :: binary(),
-                    columns :: [#sql_column{}],
-                    indices = [] :: [#sql_index{}],
-                    post_create}).
--record(sql_schema, {version :: integer(),
-                     tables :: [#sql_table{}],
-                     update = []}).
--record(sql_references, {table :: binary(),
-                         column :: binary()}).
-
--record(sql_schema_info,
-        {db_type :: pgsql | mysql | sqlite,
-         db_version :: any(),
-         new_schema = true :: boolean()}).
+-record(sql_schema_info, {
+          db_type :: pgsql | mysql | sqlite,
+          db_version :: any(),
+          new_schema = true :: boolean()
+         }).

include/ejabberd_web_admin.hrl

@@ -19,35 +19,35 @@
 %%%----------------------------------------------------------------------
 
 -define(X(Name),
-	#xmlel{name = Name, attrs = [], children = []}).
+        #xmlel{name = Name, attrs = [], children = []}).
 
 -define(XA(Name, Attrs),
-	#xmlel{name = Name, attrs = Attrs, children = []}).
+        #xmlel{name = Name, attrs = Attrs, children = []}).
 
 -define(XE(Name, Els),
-	#xmlel{name = Name, attrs = [], children = Els}).
+        #xmlel{name = Name, attrs = [], children = Els}).
 
 -define(XAE(Name, Attrs, Els),
-	#xmlel{name = Name, attrs = Attrs, children = Els}).
+        #xmlel{name = Name, attrs = Attrs, children = Els}).
 
 -define(C(Text), {xmlcdata, Text}).
 
 -define(XC(Name, Text), ?XE(Name, [?C(Text)])).
 
 -define(XAC(Name, Attrs, Text),
-	?XAE(Name, Attrs, [?C(Text)])).
+        ?XAE(Name, Attrs, [?C(Text)])).
 
 -define(CT(Text), ?C((translate:translate(Lang, Text)))).
 
 -define(XCT(Name, Text), ?XC(Name, (translate:translate(Lang, Text)))).
 
 -define(XACT(Name, Attrs, Text),
-	?XAC(Name, Attrs, (translate:translate(Lang, Text)))).
+        ?XAC(Name, Attrs, (translate:translate(Lang, Text)))).
 
 -define(LI(Els), ?XE(<<"li">>, Els)).
 
 -define(A(URL, Els),
-	?XAE(<<"a">>, [{<<"href">>, URL}], Els)).
+        ?XAE(<<"a">>, [{<<"href">>, URL}], Els)).
 
 -define(AC(URL, Text), ?A(URL, [?C(Text)])).
 
@@ -58,69 +58,79 @@
 -define(BR, ?X(<<"br">>)).
 
 -define(INPUT(Type, Name, Value),
-	?XA(<<"input">>,
-	    [{<<"type">>, Type}, {<<"name">>, Name},
-	     {<<"value">>, Value}])).
+        ?XA(<<"input">>,
+            [{<<"type">>, Type},
+             {<<"name">>, Name},
+             {<<"value">>, Value}])).
 
 -define(INPUTPH(Type, Name, Value, PlaceHolder),
-	?XA(<<"input">>,
-	    [{<<"type">>, Type}, {<<"name">>, Name},
-	     {<<"value">>, Value}, {<<"placeholder">>, PlaceHolder}])).
+        ?XA(<<"input">>,
+            [{<<"type">>, Type},
+             {<<"name">>, Name},
+             {<<"value">>, Value},
+             {<<"placeholder">>, PlaceHolder}])).
 
 -define(INPUTT(Type, Name, Value),
-	?INPUT(Type, Name, (translate:translate(Lang, Value)))).
+        ?INPUT(Type, Name, (translate:translate(Lang, Value)))).
 
 -define(INPUTD(Type, Name, Value),
-	?XA(<<"input">>,
-	    [{<<"type">>, Type}, {<<"name">>, Name},
-             {<<"class">>, <<"btn-danger">>}, {<<"value">>, Value}])).
+        ?XA(<<"input">>,
+            [{<<"type">>, Type},
+             {<<"name">>, Name},
+             {<<"class">>, <<"btn-danger">>},
+             {<<"value">>, Value}])).
 
 -define(INPUTTD(Type, Name, Value),
-	?INPUTD(Type, Name, (translate:translate(Lang, Value)))).
+        ?INPUTD(Type, Name, (translate:translate(Lang, Value)))).
 
 -define(INPUTS(Type, Name, Value, Size),
-	?XA(<<"input">>,
-	    [{<<"type">>, Type}, {<<"name">>, Name},
-	     {<<"value">>, Value}, {<<"size">>, Size}])).
+        ?XA(<<"input">>,
+            [{<<"type">>, Type},
+             {<<"name">>, Name},
+             {<<"value">>, Value},
+             {<<"size">>, Size}])).
 
 -define(INPUTST(Type, Name, Value, Size),
-	?INPUT(Type, Name, (translate:translate(Lang, Value)), Size)).
+        ?INPUT(Type, Name, (translate:translate(Lang, Value)), Size)).
 
 -define(ACLINPUT(Text),
-	?XE(<<"td">>,
-	    [?INPUT(<<"text">>, <<"value", ID/binary>>, Text)])).
+        ?XE(<<"td">>,
+            [?INPUT(<<"text">>, <<"value", ID/binary>>, Text)])).
 
 -define(TEXTAREA(Name, Rows, Cols, Value),
-	?XAC(<<"textarea">>,
-	     [{<<"name">>, Name}, {<<"rows">>, Rows},
-	      {<<"cols">>, Cols}],
-	     Value)).
+        ?XAC(<<"textarea">>,
+             [{<<"name">>, Name},
+              {<<"rows">>, Rows},
+              {<<"cols">>, Cols}],
+             Value)).
 
 %% Build an xmlelement for result
 -define(XRES(Text),
-	?XAC(<<"p">>, [{<<"class">>, <<"result">>}], Text)).
+        ?XAC(<<"p">>, [{<<"class">>, <<"result">>}], Text)).
 
 -define(DIVRES(Elements),
-	?XAE(<<"div">>, [{<<"class">>, <<"result">>}], Elements)).
+        ?XAE(<<"div">>, [{<<"class">>, <<"result">>}], Elements)).
 
 %% Guide Link
 -define(XREST(Text), ?XRES((translate:translate(Lang, Text)))).
 
 -define(GL(Ref, Title),
-	?XAE(<<"div">>, [{<<"class">>, <<"guidelink">>}],
-	     [?XAE(<<"a">>,
-		   [{<<"href">>, <<"https://docs.ejabberd.im/", Ref/binary>>},
-		    {<<"target">>, <<"_blank">>}],
-		   [?C(<<"docs: ", Title/binary>>)])])).
+        ?XAE(<<"div">>,
+             [{<<"class">>, <<"guidelink">>}],
+             [?XAE(<<"a">>,
+                   [{<<"href">>, <<"https://docs.ejabberd.im/", Ref/binary>>},
+                    {<<"target">>, <<"_blank">>}],
+                   [?C(<<"docs: ", Title/binary>>)])])).
 
 %% h1 with a Guide Link
 -define(H1GLraw(Name, Ref, Title),
-	[?XC(<<"h1">>, Name), ?GL(Ref, Title), ?BR, ?BR]).
+        [?XC(<<"h1">>, Name), ?GL(Ref, Title), ?BR, ?BR]).
 -define(H1GL(Name, RefConf, Title),
-	?H1GLraw(Name, <<"admin/configuration/", RefConf/binary>>, Title)).
+        ?H1GLraw(Name, <<"admin/configuration/", RefConf/binary>>, Title)).
 
 -define(ANCHORL(Ref),
-	?XAE(<<"div">>, [{<<"class">>, <<"anchorlink">>}],
-	     [?XAE(<<"a">>,
-		   [{<<"href">>, <<"#", Ref/binary>>}],
-		   [?C(unicode:characters_to_binary("¶"))])])).
+        ?XAE(<<"div">>,
+             [{<<"class">>, <<"anchorlink">>}],
+             [?XAE(<<"a">>,
+                   [{<<"href">>, <<"#", Ref/binary>>}],
+                   [?C(unicode:characters_to_binary("¶"))])])).

include/eldap.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -define(LDAP_PORT, 389).
 

include/http_bind.hrl

@@ -19,31 +19,34 @@
 %%%----------------------------------------------------------------------
 
 -define(CT_XML,
-	{<<"Content-Type">>, <<"text/xml; charset=utf-8">>}).
+        {<<"Content-Type">>, <<"text/xml; charset=utf-8">>}).
 
 -define(CT_PLAIN,
-	{<<"Content-Type">>, <<"text/plain">>}).
+        {<<"Content-Type">>, <<"text/plain">>}).
 
 -define(AC_ALLOW_ORIGIN,
-	{<<"Access-Control-Allow-Origin">>, <<"*">>}).
+        {<<"Access-Control-Allow-Origin">>, <<"*">>}).
 
 -define(AC_ALLOW_METHODS,
-	{<<"Access-Control-Allow-Methods">>,
-	 <<"GET, POST, OPTIONS">>}).
+        {<<"Access-Control-Allow-Methods">>,
+         <<"GET, POST, OPTIONS">>}).
 
 -define(AC_ALLOW_HEADERS,
-	{<<"Access-Control-Allow-Headers">>,
-	 <<"Content-Type">>}).
+        {<<"Access-Control-Allow-Headers">>,
+         <<"Content-Type">>}).
 
 -define(AC_MAX_AGE,
-	{<<"Access-Control-Max-Age">>, <<"86400">>}).
+        {<<"Access-Control-Max-Age">>, <<"86400">>}).
 
 -define(NO_CACHE,
         {<<"Cache-Control">>, <<"max-age=0, no-cache, no-store">>}).
 
 -define(OPTIONS_HEADER,
-	[?CT_PLAIN, ?AC_ALLOW_ORIGIN, ?AC_ALLOW_METHODS,
-	 ?AC_ALLOW_HEADERS, ?AC_MAX_AGE]).
+        [?CT_PLAIN,
+         ?AC_ALLOW_ORIGIN,
+         ?AC_ALLOW_METHODS,
+         ?AC_ALLOW_HEADERS,
+         ?AC_MAX_AGE]).
 
 -define(HEADER,
-	[?CT_XML, ?AC_ALLOW_ORIGIN, ?AC_ALLOW_HEADERS, ?NO_CACHE]).
+        [?CT_XML, ?AC_ALLOW_ORIGIN, ?AC_ALLOW_HEADERS, ?NO_CACHE]).

include/logger.hrl

@@ -23,62 +23,87 @@
 -compile([{parse_transform, lager_transform}]).
 
 -define(DEBUG(Format, Args),
-	begin lager:debug(Format, Args), ok end).
+        begin lager:debug(Format, Args), ok end).
 
 -define(INFO_MSG(Format, Args),
-	begin lager:info(Format, Args), ok end).
+        begin lager:info(Format, Args), ok end).
 
 -define(WARNING_MSG(Format, Args),
-	begin lager:warning(Format, Args), ok end).
+        begin lager:warning(Format, Args), ok end).
 
 -define(ERROR_MSG(Format, Args),
-	begin lager:error(Format, Args), ok end).
+        begin lager:error(Format, Args), ok end).
 
 -define(CRITICAL_MSG(Format, Args),
-	begin lager:critical(Format, Args), ok end).
+        begin lager:critical(Format, Args), ok end).
 -else.
 -include_lib("kernel/include/logger.hrl").
 
--define(CLEAD,    "\e[1").    % bold
--define(CMID,     "\e[0").    % normal
--define(CCLEAN,   "\e[0m").   % clean
+-define(CLEAD,  "\e[1").  % bold
+-define(CMID,   "\e[0").  % normal
+-define(CCLEAN, "\e[0m").  % clean
 
--define(CDEFAULT, ";49;95m"). % light magenta
--define(CDEBUG,   ";49;90m"). % dark gray
--define(CINFO,    ";49;92m"). % green
--define(CWARNING, ";49;93m"). % light yellow
--define(CERROR,   ";49;91m"). % light magenta
--define(CCRITICAL,";49;31m"). % light red
+-define(CDEFAULT,  ";49;95m").  % light magenta
+-define(CDEBUG,    ";49;90m").  % dark gray
+-define(CINFO,     ";49;92m").  % green
+-define(CWARNING,  ";49;93m").  % light yellow
+-define(CERROR,    ";49;91m").  % light magenta
+-define(CCRITICAL, ";49;31m").  % light red
 
 -define(DEBUG(Format, Args),
-	begin ?LOG_DEBUG(Format, Args,
-                        #{clevel => ?CLEAD ++ ?CDEBUG,
-                          ctext => ?CMID ++ ?CDEBUG}),
-              ok end).
+        begin
+            ?LOG_DEBUG(Format,
+                       Args,
+                       #{
+                         clevel => ?CLEAD ++ ?CDEBUG,
+                         ctext => ?CMID ++ ?CDEBUG
+                        }),
+            ok
+        end).
 
 -define(INFO_MSG(Format, Args),
-	begin ?LOG_INFO(Format, Args,
-                        #{clevel => ?CLEAD ++ ?CINFO,
-                          ctext => ?CCLEAN}),
-              ok end).
+        begin
+            ?LOG_INFO(Format,
+                      Args,
+                      #{
+                        clevel => ?CLEAD ++ ?CINFO,
+                        ctext => ?CCLEAN
+                       }),
+            ok
+        end).
 
 -define(WARNING_MSG(Format, Args),
-	begin ?LOG_WARNING(Format, Args,
-                        #{clevel => ?CLEAD ++ ?CWARNING,
-                          ctext => ?CMID ++ ?CWARNING}),
-              ok end).
+        begin
+            ?LOG_WARNING(Format,
+                         Args,
+                         #{
+                           clevel => ?CLEAD ++ ?CWARNING,
+                           ctext => ?CMID ++ ?CWARNING
+                          }),
+            ok
+        end).
 
 -define(ERROR_MSG(Format, Args),
-	begin ?LOG_ERROR(Format, Args,
-                        #{clevel => ?CLEAD ++ ?CERROR,
-                          ctext => ?CMID ++ ?CERROR}),
-              ok end).
+        begin
+            ?LOG_ERROR(Format,
+                       Args,
+                       #{
+                         clevel => ?CLEAD ++ ?CERROR,
+                         ctext => ?CMID ++ ?CERROR
+                        }),
+            ok
+        end).
 
 -define(CRITICAL_MSG(Format, Args),
-	begin ?LOG_CRITICAL(Format, Args,
-                        #{clevel => ?CLEAD++ ?CCRITICAL,
-                          ctext => ?CMID ++ ?CCRITICAL}),
-              ok end).
+        begin
+            ?LOG_CRITICAL(Format,
+                          Args,
+                          #{
+                            clevel => ?CLEAD ++ ?CCRITICAL,
+                            ctext => ?CMID ++ ?CCRITICAL
+                           }),
+            ok
+        end).
 -endif.
 
 %% Use only when trying to troubleshoot test problem with ExUnit

include/mod_announce.hrl

@@ -18,8 +18,12 @@
 %%%
 %%%----------------------------------------------------------------------
 
--record(motd, {server = <<"">> :: binary(),
-               packet = #xmlel{} :: xmlel()}).
+-record(motd, {
+          server = <<"">> :: binary(),
+          packet = #xmlel{} :: xmlel()
+         }).
 
--record(motd_users, {us = {<<"">>, <<"">>} :: {binary(), binary()} | '$1',
-                     dummy = [] :: [] | '_'}).
+-record(motd_users, {
+          us = {<<"">>, <<"">>} :: {binary(), binary()} | '$1',
+          dummy = [] :: [] | '_'
+         }).

include/mod_antispam.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -define(MODULE_ANTISPAM, mod_antispam).
 

include/mod_caps.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -record(caps_features,
 	{node_pair = {<<"">>, <<"">>} :: {binary(), binary()},

include/mod_last.hrl

@@ -18,6 +18,8 @@
 %%%
 %%%----------------------------------------------------------------------
 
--record(last_activity, {us = {<<"">>, <<"">>} :: {binary(), binary()},
-                        timestamp = 0 :: non_neg_integer(),
-                        status = <<"">> :: binary()}).
+-record(last_activity, {
+          us = {<<"">>, <<"">>} :: {binary(), binary()},
+          timestamp = 0 :: non_neg_integer(),
+          status = <<"">> :: binary()
+         }).

include/mod_mam.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -record(archive_msg,
 	{us = {<<"">>, <<"">>}                :: {binary(), binary()},

include/mod_matrix_gw.hrl

@@ -18,19 +18,19 @@
 %%%
 %%%----------------------------------------------------------------------
 
--record(room_version,
-        {id :: binary(),
-         %% use the same field names as in Synapse
-         enforce_key_validity :: boolean(),
-         special_case_aliases_auth :: boolean(),
-         strict_canonicaljson :: boolean(),
-         limit_notifications_power_levels :: boolean(),
-         knock_join_rule :: boolean(),
-         restricted_join_rule :: boolean(),
-         restricted_join_rule_fix :: boolean(),
-         knock_restricted_join_rule :: boolean(),
-         enforce_int_power_levels :: boolean(),
-         implicit_room_creator :: boolean(),
-         updated_redaction_rules :: boolean(),
-         hydra :: boolean()
-        }).
+-record(room_version, {
+          id :: binary(),
+          %% use the same field names as in Synapse
+          enforce_key_validity :: boolean(),
+          special_case_aliases_auth :: boolean(),
+          strict_canonicaljson :: boolean(),
+          limit_notifications_power_levels :: boolean(),
+          knock_join_rule :: boolean(),
+          restricted_join_rule :: boolean(),
+          restricted_join_rule_fix :: boolean(),
+          knock_restricted_join_rule :: boolean(),
+          enforce_int_power_levels :: boolean(),
+          implicit_room_creator :: boolean(),
+          updated_redaction_rules :: boolean(),
+          hydra :: boolean()
+         }).

include/mod_muc.hrl

@@ -18,19 +18,25 @@
 %%%
 %%%----------------------------------------------------------------------
 
--record(muc_room, {name_host = {<<"">>, <<"">>} :: {binary(), binary()} |
-                                                   {'_', binary()},
-                   opts = [] :: list() | '_'}).
+-record(muc_room, {
+          name_host = {<<"">>, <<"">>} :: {binary(), binary()} |
+                                          {'_', binary()},
+          opts = [] :: list() | '_'
+         }).
 
--record(muc_registered,
-        {us_host = {{<<"">>, <<"">>}, <<"">>} :: {{binary(), binary()}, binary()} | '$1',
-         nick = <<"">> :: binary()}).
+-record(muc_registered, {
+          us_host = {{<<"">>, <<"">>}, <<"">>} :: {{binary(), binary()}, binary()} | '$1',
+          nick = <<"">> :: binary()
+         }).
 
--record(muc_online_room,
-        {name_host :: {binary(), binary()} | '$1' | {'_', binary()} | '_',
-         pid :: pid() | '$2' | '_' | '$1'}).
+-record(muc_online_room, {
+          name_host :: {binary(), binary()} | '$1' | {'_', binary()} | '_',
+          pid :: pid() | '$2' | '_' | '$1'
+         }).
 
--record(muc_online_users, {us :: {binary(), binary()},
-                           resource :: binary() | '_',
-                           room :: binary() | '_' | '$1',
-                           host :: binary() | '_' | '$2'}).
+-record(muc_online_users, {
+          us :: {binary(), binary()},
+          resource :: binary() | '_',
+          room :: binary() | '_' | '$1',
+          host :: binary() | '_' | '$2'
+         }).

include/mod_muc_room.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -define(MAX_USERS_DEFAULT, 200).
 

include/mod_offline.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -record(offline_msg,
 	{us = {<<"">>, <<"">>} :: {binary(), binary()},

include/mod_privacy.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -record(privacy, {us = {<<"">>, <<"">>} :: {binary(), binary()},
                   default = none        :: none | binary(),

include/mod_private.hrl

@@ -18,7 +18,11 @@
 %%%
 %%%----------------------------------------------------------------------
 
--record(private_storage,
-        {usns = {<<"">>, <<"">>, <<"">>} :: {binary(), binary(), binary() |
-                                             '$1' | '_'},
-         xml = #xmlel{} :: xmlel() | '_' | '$1'}).
+-record(private_storage, {
+          usns = {<<"">>, <<"">>, <<"">>} :: {binary(),
+                                              binary(),
+                                              binary() |
+                                              '$1' |
+                                              '_'},
+          xml = #xmlel{} :: xmlel() | '_' | '$1'
+         }).

include/mod_proxy65.hrl

@@ -68,6 +68,8 @@
 %% RFC 1928 defined timeout.
 -define(SOCKS5_REPLY_TIMEOUT, 10000).
 
--record(s5_request, {rsv = 0 :: integer(),
-                     cmd = connect :: connect | udp,
-                     sha1 = <<"">> :: binary()}).
+-record(s5_request, {
+          rsv = 0 :: integer(),
+          cmd = connect :: connect | udp,
+          sha1 = <<"">> :: binary()
+         }).

include/mod_push.hrl

@@ -16,6 +16,9 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
+
 -record(push_session,
         {us = {<<"">>, <<"">>}                  :: {binary(), binary()},
          timestamp = erlang:timestamp()         :: erlang:timestamp(),

include/mod_roster.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 -record(roster,
 {

include/mod_shared_roster.hrl

@@ -18,8 +18,12 @@
 %%%
 %%%----------------------------------------------------------------------
 
--record(sr_group, {group_host = {<<"">>, <<"">>} :: {'$1' | binary(), '$2' | binary()},
-                   opts = [] :: list() | '_' | '$2'}).
+-record(sr_group, {
+          group_host = {<<"">>, <<"">>} :: {'$1' | binary(), '$2' | binary()},
+          opts = [] :: list() | '_' | '$2'
+         }).
 
--record(sr_user, {us = {<<"">>, <<"">>} :: {binary(), binary()},
-                  group_host = {<<"">>, <<"">>} :: {binary(), binary()}}).
+-record(sr_user, {
+          us = {<<"">>, <<"">>} :: {binary(), binary()},
+          group_host = {<<"">>, <<"">>} :: {binary(), binary()}
+         }).

include/mod_vcard.hrl

@@ -18,11 +18,35 @@
 %%%
 %%%----------------------------------------------------------------------
 
--record(vcard_search,
-	{us, user, luser, fn, lfn, family, lfamily, given,
-	 lgiven, middle, lmiddle, nickname, lnickname, bday,
-	 lbday, ctry, lctry, locality, llocality, email, lemail,
-	 orgname, lorgname, orgunit, lorgunit}).
+-record(vcard_search, {
+          us,
+          user,
+          luser,
+          fn,
+          lfn,
+          family,
+          lfamily,
+          given,
+          lgiven,
+          middle,
+          lmiddle,
+          nickname,
+          lnickname,
+          bday,
+          lbday,
+          ctry,
+          lctry,
+          locality,
+          llocality,
+          email,
+          lemail,
+          orgname,
+          lorgname,
+          orgunit,
+          lorgunit
+         }).
 
--record(vcard, {us = {<<"">>, <<"">>} :: {binary(), binary()} | binary(),
-                vcard = #xmlel{} :: xmlel()}).
+-record(vcard, {
+          us = {<<"">>, <<"">>} :: {binary(), binary()} | binary(),
+          vcard = #xmlel{} :: xmlel()
+         }).

include/mqtt.hrl

@@ -15,6 +15,9 @@
 %%% limitations under the License.
 %%%
 %%%-------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
+
 -define(MQTT_VERSION_4, 4).
 -define(MQTT_VERSION_5, 5).
 

include/pubsub.hrl

@@ -17,6 +17,8 @@
 %%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 %%%
 %%%----------------------------------------------------------------------
+%% @efmt:off
+%% @indent-begin
 
 %% -------------------------------
 %% Pubsub constants

plugins/configure_deps.erl

@@ -1,5 +1,6 @@
 -module(configure_deps).
 -export(['configure-deps'/2]).
 
+
 'configure-deps'(Config, Vals) ->
-  {ok, Config}.
+    {ok, Config}.

plugins/deps_erl_opts.erl

@@ -1,6 +1,7 @@
 -module(deps_erl_opts).
 -export([preprocess/2]).
 
+
 preprocess(Config, Dirs) ->
     ExtraOpts = rebar_config:get(Config, deps_erl_opts, []),
     Opts = rebar_config:get(Config, erl_opts, []),
@@ -8,5 +9,7 @@ preprocess(Config, Dirs) ->
                                   lists:keystore(element(1, Opt), 1, Acc, Opt);
                              (Opt, Acc) ->
                                   [Opt | lists:delete(Opt, Acc)]
-                          end, Opts, ExtraOpts),
+                          end,
+                          Opts,
+                          ExtraOpts),
     {ok, rebar_config:set(Config, erl_opts, NewOpts), []}.

plugins/override_deps_versions2.erl

@@ -1,22 +1,25 @@
 -module(override_deps_versions2).
 -export([preprocess/2, 'pre_update-deps'/2, new_replace/1, new_replace/0]).
 
+
 preprocess(Config, _Dirs) ->
     update_deps(Config).
 
+
 update_deps(Config) ->
     LocalDeps = rebar_config:get_local(Config, deps, []),
     TopDeps = case rebar_config:get_xconf(Config, top_deps, []) of
-		  [] -> LocalDeps;
-		  Val -> Val
-	      end,
+                  [] -> LocalDeps;
+                  Val -> Val
+              end,
     Config2 = rebar_config:set_xconf(Config, top_deps, TopDeps),
     NewDeps = lists:map(fun({Name, _, _} = Dep) ->
-				case lists:keyfind(Name, 1, TopDeps) of
-				    false -> Dep;
-				    TopDep -> TopDep
-				end
-			end, LocalDeps),
+                                case lists:keyfind(Name, 1, TopDeps) of
+                                    false -> Dep;
+                                    TopDep -> TopDep
+                                end
+                        end,
+                        LocalDeps),
     %io:format("LD ~p~n", [LocalDeps]),
     %io:format("TD ~p~n", [TopDeps]),
 
@@ -28,53 +31,59 @@ update_deps(Config) ->
     {ok, Config2, _} = update_deps(Config),
 
     case code:is_loaded(old_rebar_config) of
-	false ->
-	    {_, Beam, _} = code:get_object_code(rebar_config),
-	    NBeam = rename(Beam, old_rebar_config),
-	    code:load_binary(old_rebar_config, "blank", NBeam),
-	    replace_mod(Beam);
-	_ ->
-	    ok
+        false ->
+            {_, Beam, _} = code:get_object_code(rebar_config),
+            NBeam = rename(Beam, old_rebar_config),
+            code:load_binary(old_rebar_config, "blank", NBeam),
+            replace_mod(Beam);
+        _ ->
+            ok
     end,
     {ok, Config2}.
 
+
 new_replace() ->
     old_rebar_config:new().
+
+
 new_replace(Config) ->
     NC = old_rebar_config:new(Config),
     {ok, Conf, _} = update_deps(NC),
     Conf.
 
+
 replace_mod(Beam) ->
     {ok, {_, [{exports, Exports}]}} = beam_lib:chunks(Beam, [exports]),
     Funcs = lists:filtermap(
-	      fun({module_info, _}) ->
-		      false;
-		 ({Name, Arity}) ->
-		      Args = args(Arity),
-		      Call = case Name of
-				 new ->
-				     [erl_syntax:application(
-					erl_syntax:abstract(override_deps_versions2),
-					erl_syntax:abstract(new_replace),
-					Args)];
-				 _ ->
-				     [erl_syntax:application(
-					erl_syntax:abstract(old_rebar_config),
-					erl_syntax:abstract(Name),
-					Args)]
-			     end,
-		      {true, erl_syntax:function(erl_syntax:abstract(Name),
-						 [erl_syntax:clause(Args, none,
-								    Call)])}
-	      end, Exports),
+              fun({module_info, _}) ->
+                      false;
+                 ({Name, Arity}) ->
+                      Args = args(Arity),
+                      Call = case Name of
+                                 new ->
+                                     [erl_syntax:application(
+                                        erl_syntax:abstract(override_deps_versions2),
+                                        erl_syntax:abstract(new_replace),
+                                        Args)];
+                                 _ ->
+                                     [erl_syntax:application(
+                                        erl_syntax:abstract(old_rebar_config),
+                                        erl_syntax:abstract(Name),
+                                        Args)]
+                             end,
+                      {true, erl_syntax:function(erl_syntax:abstract(Name),
+                                                 [erl_syntax:clause(Args,
+                                                                    none,
+                                                                    Call)])}
+              end,
+              Exports),
     Forms0 = ([erl_syntax:attribute(erl_syntax:abstract(module),
-				    [erl_syntax:abstract(rebar_config)])]
-	      ++ Funcs),
-    Forms = [erl_syntax:revert(Form) || Form <- Forms0],
+                                    [erl_syntax:abstract(rebar_config)])] ++
+              Funcs),
+    Forms = [ erl_syntax:revert(Form) || Form <- Forms0 ],
     %io:format("--------------------------------------------------~n"
-	%      "~s~n",
-	 %     [[erl_pp:form(Form) || Form <- Forms]]),
+    %      "~s~n",
+    %     [[erl_pp:form(Form) || Form <- Forms]]),
     {ok, Mod, Bin} = compile:forms(Forms, [report, export_all]),
     code:purge(rebar_config),
     {module, Mod} = code:load_binary(rebar_config, "mock", Bin).
@@ -83,15 +92,18 @@ replace_mod(Beam) ->
 args(0) ->
     [];
 args(N) ->
-    [arg(N) | args(N-1)].
+    [arg(N) | args(N - 1)].
+
 
 arg(N) ->
-    erl_syntax:variable(list_to_atom("A"++integer_to_list(N))).
+    erl_syntax:variable(list_to_atom("A" ++ integer_to_list(N))).
+
 
 rename(BeamBin0, Name) ->
     BeamBin = replace_in_atab(BeamBin0, Name),
     update_form_size(BeamBin).
 
+
 %% Replace the first atom of the atom table with the new name
 replace_in_atab(<<"Atom", CnkSz0:32, Cnk:CnkSz0/binary, Rest/binary>>, Name) ->
     replace_first_atom(<<"Atom">>, Cnk, CnkSz0, Rest, latin1, Name);
@@ -100,6 +112,7 @@ replace_in_atab(<<"AtU8", CnkSz0:32, Cnk:CnkSz0/binary, Rest/binary>>, Name) ->
 replace_in_atab(<<C, Rest/binary>>, Name) ->
     <<C, (replace_in_atab(Rest, Name))/binary>>.
 
+
 replace_first_atom(CnkName, Cnk, CnkSz0, Rest, Encoding, Name) ->
     <<NumAtoms:32, NameSz0:8, _Name0:NameSz0/binary, CnkRest/binary>> = Cnk,
     NumPad0 = num_pad_bytes(CnkSz0),
@@ -116,11 +129,12 @@ replace_first_atom(CnkName, Cnk, CnkSz0, Rest, Encoding, Name) ->
 %% BinSize to be an even multiple of ?beam_num_bytes_alignment.
 num_pad_bytes(BinSize) ->
     case 4 - (BinSize rem 4) of
-	4 -> 0;
-	N -> N
+        4 -> 0;
+        N -> N
     end.
 
+
 %% Update the size within the top-level form
 update_form_size(<<"FOR1", _OldSz:32, Rest/binary>> = Bin) ->
     Sz = size(Bin) - 8,
-<<"FOR1", Sz:32, Rest/binary>>.
+    <<"FOR1", Sz:32, Rest/binary>>.

plugins/override_opts.erl

@@ -1,43 +1,53 @@
 -module(override_opts).
 -export([preprocess/2]).
 
+
 override_opts(override, Config, Opts) ->
     lists:foldl(fun({Opt, Value}, Conf) ->
-			rebar_config:set(Conf, Opt, Value)
-		end, Config, Opts);
+                        rebar_config:set(Conf, Opt, Value)
+                end,
+                Config,
+                Opts);
 override_opts(add, Config, Opts) ->
     lists:foldl(fun({Opt, Value}, Conf) ->
-			V = rebar_config:get_local(Conf, Opt, []),
-			rebar_config:set(Conf, Opt, V ++ Value)
-		end, Config, Opts);
+                        V = rebar_config:get_local(Conf, Opt, []),
+                        rebar_config:set(Conf, Opt, V ++ Value)
+                end,
+                Config,
+                Opts);
 override_opts(del, Config, Opts) ->
     lists:foldl(fun({Opt, Value}, Conf) ->
-			V = rebar_config:get_local(Conf, Opt, []),
-			rebar_config:set(Conf, Opt, V -- Value)
-		end, Config, Opts).
+                        V = rebar_config:get_local(Conf, Opt, []),
+                        rebar_config:set(Conf, Opt, V -- Value)
+                end,
+                Config,
+                Opts).
+
 
 preprocess(Config, _Dirs) ->
     Overrides = rebar_config:get_local(Config, overrides, []),
     TopOverrides = case rebar_config:get_xconf(Config, top_overrides, []) of
-		  [] -> Overrides;
-		  Val -> Val
-	      end,
+                       [] -> Overrides;
+                       Val -> Val
+                   end,
     Config2 = rebar_config:set_xconf(Config, top_overrides, TopOverrides),
     try
         Config3 = case rebar_app_utils:load_app_file(Config2, _Dirs) of
-		  {ok, C, AppName, _AppData} ->
-		      lists:foldl(fun({Type, AppName2, Opts}, Conf1) when
-					    AppName2 == AppName ->
-					  override_opts(Type, Conf1, Opts);
-				     ({Type, Opts}, Conf1a) ->
-					  override_opts(Type, Conf1a, Opts);
-				     (_, Conf2) ->
-					  Conf2
-				  end, C, TopOverrides);
-		  _ ->
-		      Config2
-	end,
-	{ok, Config3, []}
+                      {ok, C, AppName, _AppData} ->
+                          lists:foldl(fun({Type, AppName2, Opts}, Conf1)
+                                            when AppName2 == AppName ->
+                                              override_opts(Type, Conf1, Opts);
+                                         ({Type, Opts}, Conf1a) ->
+                                              override_opts(Type, Conf1a, Opts);
+                                         (_, Conf2) ->
+                                              Conf2
+                                      end,
+                                      C,
+                                      TopOverrides);
+                      _ ->
+                          Config2
+                  end,
+        {ok, Config3, []}
     catch
         error:badarg -> {ok, Config2, []}
     end.

rebar.config

@@ -23,87 +23,94 @@
 %%%
 
 {deps, [{if_not_rebar3,
-         {if_version_below, "24",
-          {base64url, "~> 1.0", {git, "https://github.com/dvv/base64url", {tag, "1.0.1"}}}
-        }},
+         {if_version_below,
+          "24",
+          {base64url, "~> 1.0", {git, "https://github.com/dvv/base64url", {tag, "1.0.1"}}}}},
         {cache_tab, "~> 1.0.33", {git, "https://github.com/processone/cache_tab", {tag, "1.0.33"}}},
         {eimp, "~> 1.0.26", {git, "https://github.com/processone/eimp", {tag, "1.0.26"}}},
-        {if_var_true, pam,
+        {if_var_true,
+         pam,
          {epam, "~> 1.0.14", {git, "https://github.com/processone/epam", {tag, "1.0.14"}}}},
-        {if_var_true, redis,
+        {if_var_true,
+         redis,
          {if_not_rebar3,
-          {eredis, "~> 1.2.0", {git, "https://github.com/wooga/eredis/", {tag, "v1.2.0"}}}
-        }},
-        {if_var_true, redis,
+          {eredis, "~> 1.2.0", {git, "https://github.com/wooga/eredis/", {tag, "v1.2.0"}}}}},
+        {if_var_true,
+         redis,
          {if_rebar3,
-          {if_version_below, "21",
+          {if_version_below,
+           "21",
            {eredis, "1.2.0", {git, "https://github.com/wooga/eredis/", {tag, "v1.2.0"}}},
-           {eredis, "~> 1.7.1", {git, "https://github.com/Nordix/eredis/", {tag, "v1.7.1"}}}
-        }}},
-        {if_var_true, sip,
+           {eredis, "~> 1.7.1", {git, "https://github.com/Nordix/eredis/", {tag, "v1.7.1"}}}}}},
+        {if_var_true,
+         sip,
          {esip, "~> 1.0.59", {git, "https://github.com/processone/esip", {tag, "1.0.59"}}}},
-        {if_var_true, zlib,
+        {if_var_true,
+         zlib,
          {ezlib, "~> 1.0.15", {git, "https://github.com/processone/ezlib", {tag, "1.0.15"}}}},
         {fast_tls, "~> 1.1.25", {git, "https://github.com/processone/fast_tls", {tag, "1.1.25"}}},
         {fast_xml, "~> 1.1.57", {git, "https://github.com/processone/fast_xml", {tag, "1.1.57"}}},
         {fast_yaml, "~> 1.0.39", {git, "https://github.com/processone/fast_yaml", {tag, "1.0.39"}}},
         {idna, "~> 6.0", {git, "https://github.com/benoitc/erlang-idna", {tag, "6.0.0"}}},
-        {if_version_below, "27",
-         {jiffy, "~> 1.1.1", {git, "https://github.com/davisp/jiffy", {tag, "1.1.1"}}}
-        },
-        {if_version_above, "23",
+        {if_version_below,
+         "27",
+         {jiffy, "~> 1.1.1", {git, "https://github.com/davisp/jiffy", {tag, "1.1.1"}}}},
+        {if_version_above,
+         "23",
          {jose, "~> 1.11.10", {git, "https://github.com/potatosalad/erlang-jose", {tag, "1.11.10"}}},
-         {jose, "1.11.1", {git, "https://github.com/potatosalad/erlang-jose", {tag, "1.11.1"}}}
-        },
-        {if_version_below, "22",
-         {lager, "~> 3.9.1", {git, "https://github.com/erlang-lager/lager", {tag, "3.9.1"}}}
-        },
-        {if_var_true, lua,
+         {jose, "1.11.1", {git, "https://github.com/potatosalad/erlang-jose", {tag, "1.11.1"}}}},
+        {if_version_below,
+         "22",
+         {lager, "~> 3.9.1", {git, "https://github.com/erlang-lager/lager", {tag, "3.9.1"}}}},
+        {if_var_true,
+         lua,
          {if_version_below, "21",
-          {luerl, "1.0.0", {git, "https://github.com/rvirding/luerl", {tag, "1.0"}}},
-          {luerl, "~> 1.2.0", {git, "https://github.com/rvirding/luerl", {tag, "1.2"}}}
-        }},
+                            {luerl, "1.0.0", {git, "https://github.com/rvirding/luerl", {tag, "1.0"}}},
+                            {luerl, "~> 1.2.0", {git, "https://github.com/rvirding/luerl", {tag, "1.2"}}}}},
         {mqtree, "~> 1.0.19", {git, "https://github.com/processone/mqtree", {tag, "1.0.19"}}},
         {p1_acme, "~> 1.0.28", {git, "https://github.com/processone/p1_acme", {tag, "1.0.28"}}},
-        {if_var_true, mysql,
+        {if_var_true,
+         mysql,
          {p1_mysql, "~> 1.0.26", {git, "https://github.com/processone/p1_mysql", {tag, "1.0.26"}}}},
         {p1_oauth2, "~> 0.6.14", {git, "https://github.com/processone/p1_oauth2", {tag, "0.6.14"}}},
-        {if_var_true, pgsql,
+        {if_var_true,
+         pgsql,
          {p1_pgsql, "~> 1.1.35", {git, "https://github.com/processone/p1_pgsql", {tag, "1.1.35"}}}},
         {p1_utils, "~> 1.0.28", {git, "https://github.com/processone/p1_utils", {tag, "1.0.28"}}},
         {pkix, "~> 1.0.10", {git, "https://github.com/processone/pkix", {tag, "1.0.10"}}},
-        {if_var_true, sqlite,
+        {if_var_true,
+         sqlite,
          {sqlite3, "~> 1.1.15", {git, "https://github.com/processone/erlang-sqlite3", {tag, "1.1.15"}}}},
         {stringprep, "~> 1.0.33", {git, "https://github.com/processone/stringprep", {tag, "1.0.33"}}},
-        {if_var_true, stun,
+        {if_var_true,
+         stun,
          {stun, "~> 1.2.21", {git, "https://github.com/processone/stun", {tag, "1.2.21"}}}},
         {xmpp, "~> 1.11.1", {git, "https://github.com/processone/xmpp", {tag, "1.11.1"}}},
-        {yconf, ".*", {git, "https://github.com/processone/yconf", "95692795a8a8d950ba560e5b07e6b80660557259"}}
-       ]}.
+        {yconf, ".*", {git, "https://github.com/processone/yconf", "95692795a8a8d950ba560e5b07e6b80660557259"}}]}.
 
 {gitonly_deps, [ejabberd_po]}.
 
 {if_var_true, latest_deps,
- {floating_deps, [cache_tab,
-                  eimp,
-                  epam,
-                  esip,
-                  ezlib,
-                  fast_tls,
-                  fast_xml,
-                  fast_yaml,
-                  mqtree,
-                  p1_acme,
-                  p1_mysql,
-                  p1_oauth2,
-                  p1_pgsql,
-                  p1_utils,
-                  pkix,
-                  sqlite3,
-                  stringprep,
-                  stun,
-                  xmpp,
-                  yconf]}}.
+              {floating_deps, [cache_tab,
+                               eimp,
+                               epam,
+                               esip,
+                               ezlib,
+                               fast_tls,
+                               fast_xml,
+                               fast_yaml,
+                               mqtree,
+                               p1_acme,
+                               p1_mysql,
+                               p1_oauth2,
+                               p1_pgsql,
+                               p1_utils,
+                               pkix,
+                               sqlite3,
+                               stringprep,
+                               stun,
+                               xmpp,
+                               yconf]}}.
 
 %%%
 %%% Compile
@@ -121,8 +128,8 @@
                        {"stringprep", []}]}.
 
 {erl_first_files, ["src/ejabberd_sql_pt.erl", "src/ejabberd_config.erl",
-		   "src/gen_mod.erl", "src/mod_muc_room.erl",
-		   "src/mod_push.erl", "src/xmpp_socket.erl"]}.
+                   "src/gen_mod.erl", "src/mod_muc_room.erl",
+                   "src/mod_push.erl", "src/xmpp_socket.erl"]}.
 
 {erl_opts, [nowarn_deprecated_function,
             {i, "include"},
@@ -159,22 +166,17 @@
                        %% https://github.com/Supersonido/rebar_mix/issues/27#issuecomment-894873335
                        %% Let's use this fixed rebar_mix fork, see its PR:
                        %% https://github.com/Supersonido/rebar_mix/pull/31
-                       {if_var_true, elixir, {rebar_mix, ".*",
-                                              {git, "https://github.com/bsanyi/rebar_mix.git",
-                                               {branch, "consolidation_fix"}}}
-                       }]}}.
+                       {if_var_true, elixir,
+                                     {rebar_mix, ".*",
+                                                 {git, "https://github.com/bsanyi/rebar_mix.git",
+                                                       {branch, "consolidation_fix"}}}}]}}.
 {if_rebar3, {project_plugins, [configure_deps,
-                               {if_var_true, tools, rebar3_format},
-                               {if_var_true, tools, {rebar3_lint, "4.1.1"}}
-                              ]}}.
-{if_not_rebar3, {plugins, [
-                           deps_erl_opts, override_deps_versions2, override_opts, configure_deps
-                          ]}}.
+                               {if_var_true, tools, rebar3_efmt},
+                               {if_var_true, tools, {rebar3_lint, "4.1.1"}}]}}.
+{if_not_rebar3, {plugins, [deps_erl_opts, override_deps_versions2, override_opts, configure_deps]}}.
 
 {if_rebar3, {if_var_true, elixir,
-    {provider_hooks, [
-      {post, [{compile, {mix, consolidate_protocols}}]}
-    ]}}}.
+                          {provider_hooks, [{post, [{compile, {mix, consolidate_protocols}}]}]}}}.
 
 %% Compiling Jose 1.11.10 with Erlang/OTP 27.0 throws warnings on public_key deprecated functions
 {if_rebar3, {overrides, [{del, jose, [{erl_opts, [warnings_as_errors]}]}]}}.
@@ -192,16 +194,13 @@
 {if_rebar3,
  {xref_checks,
   [deprecated_function_calls, deprecated_functions, locals_not_used,
-   undefined_function_calls, undefined_functions]}
-}.
+   undefined_function_calls, undefined_functions]}}.
 {if_not_rebar3,
  {xref_checks,
   [deprecated_function_calls, deprecated_functions,
-   undefined_function_calls, undefined_functions]}
-}.
+   undefined_function_calls, undefined_functions]}}.
 
-{xref_exclusions, [
-                   "(\"gen_transport\":_/_)",
+{xref_exclusions, ["(\"gen_transport\":_/_)",
                    "(\"eprof\":_/_)",
                    {if_var_false, elixir, "(\"Elixir.*\":_/_)"},
                    {if_var_false, http, "(\"lhttpc\":_/_)"},
@@ -219,37 +218,62 @@
 {eunit_compile_opts, [{i, "tools"},
                       {i, "include"}]}.
 
-{dialyzer, [{get_warnings, false}, % Show warnings of dependencies
+{dialyzer, [{get_warnings, false},  % Show warnings of dependencies
             {if_version_above, "25",
-             {plt_extra_apps,
-              [asn1, odbc, public_key, stdlib, syntax_tools,
-               idna, jose,
-               cache_tab, eimp, fast_tls, fast_xml, fast_yaml,
-               mqtree, p1_acme, p1_oauth2, p1_utils, pkix,
-               stringprep, xmpp, yconf,
-               {if_version_below, "27", jiffy},
-               {if_var_true, pam, epam},
-               {if_var_true, redis, eredis},
-               {if_var_true, sip, esip},
-               {if_var_true, zlib, ezlib},
-               {if_var_true, lua, luerl},
-               {if_var_true, mysql, p1_mysql},
-               {if_var_true, pgsql, p1_pgsql},
-               {if_var_true, stun, stun},
-               {if_var_true, sqlite, sqlite3}]},
-             {plt_extra_apps, % For Erlang/OTP 25 and older
-              [cache_tab, eimp, fast_tls, fast_xml, fast_yaml,
-               mqtree, p1_acme, p1_oauth2, p1_utils, pkix, stringprep, xmpp, yconf,
-               {if_var_true, pam, epam},
-               {if_var_true, redis, eredis},
-               {if_var_true, sip, esip},
-               {if_var_true, zlib, ezlib},
-               {if_var_true, lua, luerl},
-               {if_var_true, mysql, p1_mysql},
-               {if_var_true, pgsql, p1_pgsql},
-               {if_var_true, stun, stun},
-               {if_var_true, sqlite, sqlite3}]}
-            } ]}.
+                               {plt_extra_apps,
+                                [asn1,
+                                 odbc,
+                                 public_key,
+                                 stdlib,
+                                 syntax_tools,
+                                 idna,
+                                 jose,
+                                 cache_tab,
+                                 eimp,
+                                 fast_tls,
+                                 fast_xml,
+                                 fast_yaml,
+                                 mqtree,
+                                 p1_acme,
+                                 p1_oauth2,
+                                 p1_utils,
+                                 pkix,
+                                 stringprep,
+                                 xmpp,
+                                 yconf,
+                                 {if_version_below, "27", jiffy},
+                                 {if_var_true, pam, epam},
+                                 {if_var_true, redis, eredis},
+                                 {if_var_true, sip, esip},
+                                 {if_var_true, zlib, ezlib},
+                                 {if_var_true, lua, luerl},
+                                 {if_var_true, mysql, p1_mysql},
+                                 {if_var_true, pgsql, p1_pgsql},
+                                 {if_var_true, stun, stun},
+                                 {if_var_true, sqlite, sqlite3}]},
+                               {plt_extra_apps,  % For Erlang/OTP 25 and older
+                                [cache_tab,
+                                 eimp,
+                                 fast_tls,
+                                 fast_xml,
+                                 fast_yaml,
+                                 mqtree,
+                                 p1_acme,
+                                 p1_oauth2,
+                                 p1_utils,
+                                 pkix,
+                                 stringprep,
+                                 xmpp,
+                                 yconf,
+                                 {if_var_true, pam, epam},
+                                 {if_var_true, redis, eredis},
+                                 {if_var_true, sip, esip},
+                                 {if_var_true, zlib, ezlib},
+                                 {if_var_true, lua, luerl},
+                                 {if_var_true, mysql, p1_mysql},
+                                 {if_var_true, pgsql, p1_pgsql},
+                                 {if_var_true, stun, stun},
+                                 {if_var_true, sqlite, sqlite3}]}}]}.
 
 {ct_opts, [{keep_logs, 20}]}.
 
@@ -264,7 +288,7 @@
 %%%
 
 {relx, [{release, {ejabberd, {cmd, "grep {vsn, vars.config | sed 's|{vsn, \"||;s|\"}.||' | tr -d '\012'"}},
-         [ejabberd]},
+                  [ejabberd]},
         {sys_config, "./rel/sys.config"},
         {vm_args, "./rel/vm.args"},
         {overlay_vars, "vars.config"},
@@ -277,12 +301,10 @@
                    {copy, "{{base_dir}}/consolidated/*", "lib/ejabberd-{{release_version}}/ebin/"},
                    {copy, "rel/overlays/iex", "releases/{{release_version}}/"},
                    {if_var_true, elixir,
-                    {template, "rel/overlays/elixir", "releases/{{release_version}}/elixir"}
-                   },
+                                 {template, "rel/overlays/elixir", "releases/{{release_version}}/elixir"}},
                    {copy, "inetrc", "conf/inetrc"},
                    {copy, "tools/captcha*.sh", "lib/ejabberd-\{\{release_version\}\}/priv/bin/"},
-                   {copy, "rel/files/install_upgrade.escript", "bin/install_upgrade.escript"}]}
-        ]}.
+                   {copy, "rel/files/install_upgrade.escript", "bin/install_upgrade.escript"}]}]}.
 
 {profiles, [{prod, [{relx, [{debug_info, strip},
                             {dev_mode, false},
@@ -311,8 +333,7 @@
                             --config rel/relive.config \
                             --eval sync:go(). \
                             --script rel/relive.escript \
-                            --name ejabberd@localhost"}]}
-]}.
+                            --name ejabberd@localhost"}]}]}.
 
 %% Local Variables:
 %% mode: erlang

rel/files/install_upgrade.escript

@@ -4,23 +4,34 @@
 %% ex: ft=erlang ts=4 sw=4 et
 
 -define(TIMEOUT, 60000).
--define(INFO(Fmt,Args), io:format(Fmt,Args)).
+-define(INFO(Fmt, Args), io:format(Fmt, Args)).
+
 
 main([NodeName, Cookie, ReleasePackage]) ->
     TargetNode = start_distribution(NodeName, Cookie),
-    {ok, Vsn} = rpc:call(TargetNode, release_handler, unpack_release,
-                         [ReleasePackage], ?TIMEOUT),
+    {ok, Vsn} = rpc:call(TargetNode,
+                         release_handler,
+                         unpack_release,
+                         [ReleasePackage],
+                         ?TIMEOUT),
     ?INFO("Unpacked Release ~p~n", [Vsn]),
-    {ok, OtherVsn, Desc} = rpc:call(TargetNode, release_handler,
-                                    check_install_release, [Vsn], ?TIMEOUT),
-    {ok, OtherVsn, Desc} = rpc:call(TargetNode, release_handler,
-                                    install_release, [Vsn], ?TIMEOUT),
+    {ok, OtherVsn, Desc} = rpc:call(TargetNode,
+                                    release_handler,
+                                    check_install_release,
+                                    [Vsn],
+                                    ?TIMEOUT),
+    {ok, OtherVsn, Desc} = rpc:call(TargetNode,
+                                    release_handler,
+                                    install_release,
+                                    [Vsn],
+                                    ?TIMEOUT),
     ?INFO("Installed Release ~p~n", [Vsn]),
     ok = rpc:call(TargetNode, release_handler, make_permanent, [Vsn], ?TIMEOUT),
     ?INFO("Made Release ~p Permanent~n", [Vsn]);
 main(_) ->
     init:stop(1).
 
+
 start_distribution(NodeName, Cookie) ->
     MyNode = make_script_node(NodeName),
     {ok, _Pid} = net_kernel:start([MyNode, shortnames]),
@@ -36,9 +47,11 @@ start_distribution(NodeName, Cookie) ->
     end,
     TargetNode.
 
+
 make_target_node(Node) ->
     [_, Host] = string:tokens(atom_to_list(node()), "@"),
     list_to_atom(lists:concat([Node, "@", Host])).
 
+
 make_script_node(Node) ->
     list_to_atom(lists:concat([Node, "_upgrader_", os:getpid()])).

rel/relive.escript

@@ -1,5 +1,6 @@
 #!/usr/bin/env escript
 
+
 main(_) ->
     Base = "_build/relive",
     prepare(Base, "", none),
@@ -9,6 +10,7 @@ main(_) ->
     c:erlangrc([os:cmd("echo -n $HOME")]),
     ok.
 
+
 prepare(BaseDir, SuffixDir, MFA) ->
     Dir = filename:join(BaseDir, SuffixDir),
     case file:make_dir(Dir) of

src/acl.erl

@@ -27,8 +27,12 @@
 -export([validator/1, validators/0]).
 -export([loaded_shared_roster_module/1]).
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2,
-	 terminate/2, code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 
 -include("logger.hrl").
 
@@ -37,48 +41,55 @@
 -type ip_mask() :: {inet:ip4_address(), 0..32} | {inet:ip6_address(), 0..128}.
 -type access_rule() :: {acl, atom()} | acl_rule().
 -type acl_rule() :: {user, {binary(), binary()} | binary()} |
-		    {server, binary()} |
-		    {resource, binary()} |
-		    {user_regexp, {misc:re_mp(), binary()} | misc:re_mp()} |
-		    {server_regexp, misc:re_mp()} |
-		    {resource_regexp, misc:re_mp()} |
-		    {node_regexp, {misc:re_mp(), misc:re_mp()}} |
-		    {user_glob, {misc:re_mp(), binary()} | misc:re_mp()} |
-		    {server_glob, misc:re_mp()} |
-		    {resource_glob, misc:re_mp()} |
-		    {node_glob, {misc:re_mp(), misc:re_mp()}} |
-		    {shared_group, {binary(), binary()} | binary()} |
-		    {ip, ip_mask()}.
+                    {server, binary()} |
+                    {resource, binary()} |
+                    {user_regexp, {misc:re_mp(), binary()} | misc:re_mp()} |
+                    {server_regexp, misc:re_mp()} |
+                    {resource_regexp, misc:re_mp()} |
+                    {node_regexp, {misc:re_mp(), misc:re_mp()}} |
+                    {user_glob, {misc:re_mp(), binary()} | misc:re_mp()} |
+                    {server_glob, misc:re_mp()} |
+                    {resource_glob, misc:re_mp()} |
+                    {node_glob, {misc:re_mp(), misc:re_mp()}} |
+                    {shared_group, {binary(), binary()} | binary()} |
+                    {ip, ip_mask()}.
 -type access() :: [{action(), [access_rule()]}].
 -type acl() :: atom() | access().
--type match() :: #{ip => inet:ip_address(),
-		   usr => jid:ljid(),
-		   atom() => term()}.
+-type match() :: #{
+                   ip => inet:ip_address(),
+                   usr => jid:ljid(),
+                   atom() => term()
+                  }.
 
 -export_type([acl/0, acl_rule/0, access/0, access_rule/0, match/0]).
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
 start_link() ->
     gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
 
--spec match_rule(global | binary(), atom() | access(),
+
+-spec match_rule(global | binary(),
+                 atom() | access(),
                  jid:jid() | jid:ljid() | inet:ip_address() | match()) -> action().
 match_rule(_, all, _) ->
     allow;
 match_rule(_, none, _) ->
     deny;
 match_rule(Host, Access, Match) when is_map(Match) ->
-    Rules = if is_atom(Access) -> read_access(Access, Host);
-	       true -> Access
-	    end,
+    Rules = if
+                is_atom(Access) -> read_access(Access, Host);
+                true -> Access
+            end,
     match_rules(Host, Rules, Match, deny);
 match_rule(Host, Access, IP) when tuple_size(IP) == 4; tuple_size(IP) == 8 ->
     match_rule(Host, Access, #{ip => IP});
 match_rule(Host, Access, JID) ->
     match_rule(Host, Access, #{usr => jid:tolower(JID)}).
 
+
 -spec match_acl(global | binary(), access_rule(), match()) -> boolean().
 match_acl(_Host, {acl, all}, _) ->
     true;
@@ -87,8 +98,9 @@ match_acl(_Host, {acl, none}, _) ->
 match_acl(Host, {acl, ACLName}, Match) ->
     lists:any(
       fun(ACL) ->
-	      match_acl(Host, ACL, Match)
-      end, read_acl(ACLName, Host));
+              match_acl(Host, ACL, Match)
+      end,
+      read_acl(ACLName, Host));
 match_acl(_Host, {ip, {Net, Mask}}, #{ip := {IP, _Port}}) ->
     misc:match_ip_mask(IP, Net, Mask);
 match_acl(_Host, {ip, {Net, Mask}}, #{ip := IP}) ->
@@ -103,8 +115,8 @@ match_acl(_Host, {resource, R}, #{usr := {_, _, R}}) ->
     true;
 match_acl(_Host, {shared_group, {G, H}}, #{usr := {U, S, _}}) ->
     case loaded_shared_roster_module(H) of
-	undefined -> false;
-	Mod -> Mod:is_user_in_group({U, S}, G, H)
+        undefined -> false;
+        Mod -> Mod:is_user_in_group({U, S}, G, H)
     end;
 match_acl(Host, {shared_group, G}, #{usr := {_, S, _}} = Map) ->
     match_acl(Host, {shared_group, {G, S}}, Map);
@@ -131,30 +143,35 @@ match_acl(_Host, {node_glob, {UR, SR}}, #{usr := {U, S, _}}) ->
 match_acl(_, _, _) ->
     false.
 
+
 -spec match_rules(global | binary(), [{T, [access_rule()]}], match(), T) -> T.
 match_rules(Host, [{Return, Rules} | Rest], Match, Default) ->
     case match_acls(Host, Rules, Match) of
-	false ->
-	    match_rules(Host, Rest, Match, Default);
-	true ->
-	    Return
+        false ->
+            match_rules(Host, Rest, Match, Default);
+        true ->
+            Return
     end;
 match_rules(_Host, [], _Match, Default) ->
     Default.
 
+
 -spec match_acls(global | binary(), [access_rule()], match()) -> boolean().
 match_acls(_Host, [], _Match) ->
     false;
 match_acls(Host, Rules, Match) ->
     lists:all(
       fun(Rule) ->
-	      match_acl(Host, Rule, Match)
-      end, Rules).
+              match_acl(Host, Rule, Match)
+      end,
+      Rules).
+
 
 -spec reload_from_config() -> ok.
 reload_from_config() ->
     gen_server:call(?MODULE, reload_from_config, timer:minutes(1)).
 
+
 -spec validator(access_rules | acl) -> econf:validator().
 validator(access_rules) ->
     econf:options(
@@ -165,6 +182,7 @@ validator(acl) ->
       #{'_' => acl_validator()},
       [{disallowed, [all, none]}, unique]).
 
+
 %%%===================================================================
 %%% gen_server callbacks
 %%%===================================================================
@@ -177,6 +195,7 @@ init([]) ->
     ejabberd_hooks:add(config_reloaded, ?MODULE, reload_from_config, 20),
     {ok, #{hosts => Hosts}}.
 
+
 -spec handle_call(term(), term(), state()) -> {reply, ok, state()} | {noreply, state()}.
 handle_call(reload_from_config, _, State) ->
     NewHosts = ejabberd_option:hosts(),
@@ -186,24 +205,29 @@ handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 -spec handle_cast(term(), state()) -> {noreply, state()}.
 handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 -spec handle_info(term(), state()) -> {noreply, state()}.
 handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 -spec terminate(any(), state()) -> ok.
 terminate(_Reason, _State) ->
     ejabberd_hooks:delete(config_reloaded, ?MODULE, reload_from_config, 20).
 
+
 -spec code_change(term(), state(), term()) -> {ok, state()}.
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
@@ -217,18 +241,21 @@ load_from_config(NewHosts) ->
     load_tab(access, NewHosts, fun ejabberd_option:access_rules/1),
     ?DEBUG("Access rules loaded successfully", []).
 
+
 -spec create_tab(atom()) -> atom().
 create_tab(Tab) ->
     _ = mnesia:delete_table(Tab),
     ets:new(Tab, [named_table, set, {read_concurrency, true}]).
 
+
 -spec load_tab(atom(), [binary()], fun((global | binary()) -> {atom(), list()})) -> ok.
 load_tab(Tab, Hosts, Fun) ->
     Old = ets:tab2list(Tab),
     New = lists:flatmap(
             fun(Host) ->
-                    [{{Name, Host}, List} || {Name, List} <- Fun(Host)]
-            end, [global|Hosts]),
+                    [ {{Name, Host}, List} || {Name, List} <- Fun(Host) ]
+            end,
+            [global | Hosts]),
     ets:insert(Tab, New),
     lists:foreach(
       fun({Key, _}) ->
@@ -236,15 +263,18 @@ load_tab(Tab, Hosts, Fun) ->
                   false -> ets:delete(Tab, Key);
                   true -> ok
               end
-      end, Old).
+      end,
+      Old).
+
 
 -spec read_access(atom(), global | binary()) -> access().
 read_access(Name, Host) ->
     case ets:lookup(access, {Name, Host}) of
-	[{_, Access}] -> Access;
-	[] -> []
+        [{_, Access}] -> Access;
+        [] -> []
     end.
 
+
 -spec read_acl(atom(), global | binary()) -> [acl_rule()].
 read_acl(Name, Host) ->
     case ets:lookup(acl, {Name, Host}) of
@@ -252,11 +282,13 @@ read_acl(Name, Host) ->
         [] -> []
     end.
 
+
 %%%===================================================================
 %%% Validators
 %%%===================================================================
 validators() ->
-    #{ip => econf:list_or_single(econf:ip_mask()),
+    #{
+      ip => econf:list_or_single(econf:ip_mask()),
       user => user_validator(econf:user(), econf:domain()),
       user_regexp => user_validator(econf:re([unicode]), econf:domain()),
       user_glob => user_validator(econf:glob([unicode]), econf:domain()),
@@ -269,82 +301,96 @@ validators() ->
       node_regexp => node_validator(econf:re([unicode]), econf:re([unicode])),
       node_glob => node_validator(econf:glob([unicode]), econf:glob([unicode])),
       shared_group => user_validator(econf:binary(), econf:domain()),
-      acl => econf:atom()}.
+      acl => econf:atom()
+     }.
+
 
 rule_validator() ->
     rule_validator(validators()).
 
+
 rule_validator(RVs) ->
     econf:and_then(
       econf:non_empty(econf:options(RVs, [])),
       fun(Rules) ->
-	      lists:flatmap(
-		fun({Type, Rs}) when is_list(Rs) ->
-			[{Type, R} || R <- Rs];
-		   (Other) ->
-			[Other]
-		end, Rules)
+              lists:flatmap(
+                fun({Type, Rs}) when is_list(Rs) ->
+                        [ {Type, R} || R <- Rs ];
+                   (Other) ->
+                        [Other]
+                end,
+                Rules)
       end).
 
+
 access_validator() ->
     econf:and_then(
       fun(L) when is_list(L) ->
-	      lists:map(
-		fun({K, V}) -> {(econf:atom())(K), V};
-		   (A) -> {acl, (econf:atom())(A)}
-		end, lists:flatten(L));
-	 (A) ->
-	      [{acl, (econf:atom())(A)}]
+              lists:map(
+                fun({K, V}) -> {(econf:atom())(K), V};
+                   (A) -> {acl, (econf:atom())(A)}
+                end,
+                lists:flatten(L));
+         (A) ->
+              [{acl, (econf:atom())(A)}]
       end,
       rule_validator()).
 
+
 access_rules_validator() ->
     econf:and_then(
       fun(L) when is_list(L) ->
-	      lists:map(
-		fun({K, V}) -> {(econf:atom())(K), V};
-		   (A) -> {(econf:atom())(A), [{acl, all}]}
-		end, lists:flatten(L));
-	 (Bad) ->
-	      Bad
+              lists:map(
+                fun({K, V}) -> {(econf:atom())(K), V};
+                   (A) -> {(econf:atom())(A), [{acl, all}]}
+                end,
+                lists:flatten(L));
+         (Bad) ->
+              Bad
       end,
       econf:non_empty(
-	econf:options(
-	  #{allow => access_validator(),
-	    deny => access_validator()},
-	  []))).
+        econf:options(
+          #{
+            allow => access_validator(),
+            deny => access_validator()
+           },
+          []))).
+
 
 acl_validator() ->
     econf:and_then(
       fun(L) when is_list(L) -> lists:flatten(L);
-	 (Bad) -> Bad
+         (Bad) -> Bad
       end,
       rule_validator(maps:remove(acl, validators()))).
 
+
 user_validator(UV, SV) ->
     econf:and_then(
       econf:list_or_single(
-	fun({U, S}) ->
-		{UV(U), SV(S)};
-	   (M) when is_list(M) ->
-		(econf:map(UV, SV))(M);
-	   (Val) ->
-		US = (econf:binary())(Val),
-		case binary:split(US, <<"@">>, [global]) of
-		    [U, S] -> {UV(U), SV(S)};
-		    [U] -> UV(U);
-		    _ -> econf:fail({bad_user, Val})
-		end
-	end),
+        fun({U, S}) ->
+                {UV(U), SV(S)};
+           (M) when is_list(M) ->
+                (econf:map(UV, SV))(M);
+           (Val) ->
+                US = (econf:binary())(Val),
+                case binary:split(US, <<"@">>, [global]) of
+                    [U, S] -> {UV(U), SV(S)};
+                    [U] -> UV(U);
+                    _ -> econf:fail({bad_user, Val})
+                end
+        end),
       fun lists:flatten/1).
 
+
 node_validator(UV, SV) ->
     econf:and_then(
       econf:and_then(
-	econf:list(econf:any()),
-	fun lists:flatten/1),
+        econf:list(econf:any()),
+        fun lists:flatten/1),
       econf:map(UV, SV)).
 
+
 %%%===================================================================
 %%% Aux
 %%%===================================================================
@@ -352,15 +398,16 @@ node_validator(UV, SV) ->
 match_regexp(Data, RegExp) ->
     re:run(Data, RegExp) /= nomatch.
 
+
 -spec loaded_shared_roster_module(global | binary()) -> atom().
 loaded_shared_roster_module(global) ->
     loaded_shared_roster_module(ejabberd_config:get_myname());
 loaded_shared_roster_module(Host) ->
     case gen_mod:is_loaded(Host, mod_shared_roster_ldap) of
-	true -> mod_shared_roster_ldap;
-	false ->
-	    case gen_mod:is_loaded(Host, mod_shared_roster) of
-		true -> mod_shared_roster;
-		false -> undefined
-	    end
+        true -> mod_shared_roster_ldap;
+        false ->
+            case gen_mod:is_loaded(Host, mod_shared_roster) of
+                true -> mod_shared_roster;
+                false -> undefined
+            end
     end.

src/econf.erl

@@ -65,52 +65,62 @@
 -export_type([validator/0, validator/1, validators/0]).
 -export_type([error_reason/0, error_return/0]).
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
 parse(File, Validators, Options) ->
-    try yconf:parse(File, Validators, Options)
-    catch _:{?MODULE, Reason, Ctx} ->
-	    {error, Reason, Ctx}
+    try
+        yconf:parse(File, Validators, Options)
+    catch
+        _:{?MODULE, Reason, Ctx} ->
+            {error, Reason, Ctx}
     end.
 
+
 validate(Validator, Y) ->
-    try yconf:validate(Validator, Y)
-    catch _:{?MODULE, Reason, Ctx} ->
-	    {error, Reason, Ctx}
+    try
+        yconf:validate(Validator, Y)
+    catch
+        _:{?MODULE, Reason, Ctx} ->
+            {error, Reason, Ctx}
     end.
 
+
 replace_macros(Y) ->
     yconf:replace_macros(Y).
 
+
 -spec fail(error_reason()) -> no_return().
 fail(Reason) ->
     yconf:fail(?MODULE, Reason).
 
+
 format_error({bad_module, Mod}, Ctx)
   when Ctx == [listen, module];
        Ctx == [listen, request_handlers] ->
     Mods = ejabberd_config:beams(all),
     format("~ts: unknown ~ts: ~ts. Did you mean ~ts?",
-	   [yconf:format_ctx(Ctx),
-	    format_module_type(Ctx),
-	    format_module(Mod),
-	    format_module(misc:best_match(Mod, Mods))]);
+           [yconf:format_ctx(Ctx),
+            format_module_type(Ctx),
+            format_module(Mod),
+            format_module(misc:best_match(Mod, Mods))]);
 format_error({bad_module, Mod}, Ctx)
   when Ctx == [modules] ->
     Mods = lists:filter(
-	     fun(M) ->
-		     case atom_to_list(M) of
-			 "mod_" ++ _ -> true;
-			 "Elixir.Mod" ++ _ -> true;
-			 _ -> false
-		     end
-	     end, ejabberd_config:beams(all)),
+             fun(M) ->
+                     case atom_to_list(M) of
+                         "mod_" ++ _ -> true;
+                         "Elixir.Mod" ++ _ -> true;
+                         _ -> false
+                     end
+             end,
+             ejabberd_config:beams(all)),
     format("~ts: unknown ~ts: ~ts. Did you mean ~ts?",
-	   [yconf:format_ctx(Ctx),
-	    format_module_type(Ctx),
-	    format_module(Mod),
-	    format_module(misc:best_match(Mod, Mods))]);
+           [yconf:format_ctx(Ctx),
+            format_module_type(Ctx),
+            format_module(Mod),
+            format_module(misc:best_match(Mod, Mods))]);
 format_error({bad_export, {F, A}, Mod}, Ctx)
   when Ctx == [listen, module];
        Ctx == [listen, request_handlers];
@@ -118,46 +128,47 @@ format_error({bad_export, {F, A}, Mod}, Ctx)
     Type = format_module_type(Ctx),
     Slogan = yconf:format_ctx(Ctx),
     case lists:member(Mod, ejabberd_config:beams(local)) of
-	true ->
-	    format("~ts: '~ts' is not a ~ts",
-		   [Slogan, format_module(Mod), Type]);
-	false ->
-	    case lists:member(Mod, ejabberd_config:beams(external)) of
-		true ->
-		    format("~ts: third-party ~ts '~ts' doesn't export "
-			   "function ~ts/~B. If it's really a ~ts, "
-			   "consider to upgrade it",
-			   [Slogan, Type, format_module(Mod),F, A, Type]);
-		false ->
-		    format("~ts: '~ts' doesn't match any known ~ts",
-			   [Slogan, format_module(Mod), Type])
-	    end
+        true ->
+            format("~ts: '~ts' is not a ~ts",
+                   [Slogan, format_module(Mod), Type]);
+        false ->
+            case lists:member(Mod, ejabberd_config:beams(external)) of
+                true ->
+                    format("~ts: third-party ~ts '~ts' doesn't export "
+                           "function ~ts/~B. If it's really a ~ts, "
+                           "consider to upgrade it",
+                           [Slogan, Type, format_module(Mod), F, A, Type]);
+                false ->
+                    format("~ts: '~ts' doesn't match any known ~ts",
+                           [Slogan, format_module(Mod), Type])
+            end
     end;
 format_error({unknown_option, [], _} = Why, Ctx) ->
     format("~ts. There are no available options",
-	   [yconf:format_error(Why, Ctx)]);
+           [yconf:format_error(Why, Ctx)]);
 format_error({unknown_option, Known, Opt} = Why, Ctx) ->
     format("~ts. Did you mean ~ts? ~ts",
-	   [yconf:format_error(Why, Ctx),
-	    misc:best_match(Opt, Known),
-	    format_known("Available options", Known)]);
+           [yconf:format_error(Why, Ctx),
+            misc:best_match(Opt, Known),
+            format_known("Available options", Known)]);
 format_error({bad_enum, Known, Bad} = Why, Ctx) ->
     format("~ts. Did you mean ~ts? ~ts",
-	   [yconf:format_error(Why, Ctx),
-	    misc:best_match(Bad, Known),
-	    format_known("Possible values", Known)]);
+           [yconf:format_error(Why, Ctx),
+            misc:best_match(Bad, Known),
+            format_known("Possible values", Known)]);
 format_error({bad_yaml, _, _} = Why, _) ->
     format_error(Why);
 format_error(Reason, Ctx) ->
     yconf:format_ctx(Ctx) ++ ": " ++ format_error(Reason).
 
+
 format_error({bad_db_type, _, Atom}) ->
     format("unsupported database: ~ts", [Atom]);
 format_error({bad_lang, Lang}) ->
     format("Invalid language tag: ~ts", [Lang]);
 format_error({bad_pem, Why, Path}) ->
     format("Failed to read PEM file '~ts': ~ts",
-	   [Path, pkix:format_error(Why)]);
+           [Path, pkix:format_error(Why)]);
 format_error({bad_cert, Why, Path}) ->
     format_error({bad_pem, Why, Path});
 format_error({bad_jwt_key, Path}) ->
@@ -178,42 +189,46 @@ format_error({bad_sip_uri, Bad}) ->
     format("Invalid SIP URI: ~ts", [Bad]);
 format_error({route_conflict, R}) ->
     format("Failed to reuse route '~ts' because it's "
-	   "already registered on a virtual host",
-	   [R]);
+           "already registered on a virtual host",
+           [R]);
 format_error({listener_dup, AddrPort}) ->
     format("Overlapping listeners found at ~ts",
-	   [format_addr_port(AddrPort)]);
+           [format_addr_port(AddrPort)]);
 format_error({listener_conflict, AddrPort1, AddrPort2}) ->
     format("Overlapping listeners found at ~ts and ~ts",
-	   [format_addr_port(AddrPort1),
-	    format_addr_port(AddrPort2)]);
+           [format_addr_port(AddrPort1),
+            format_addr_port(AddrPort2)]);
 format_error({invalid_syntax, Reason}) ->
     format("~ts", [Reason]);
 format_error({missing_module_dep, Mod, DepMod}) ->
     format("module ~ts depends on module ~ts, "
-	   "which is not found in the config",
-	   [Mod, DepMod]);
+           "which is not found in the config",
+           [Mod, DepMod]);
 format_error(eimp_error) ->
     format("ejabberd is built without image converter support", []);
 format_error({mqtt_codec, Reason}) ->
     mqtt_codec:format_error(Reason);
 format_error({external_module_error, Module, Error}) ->
-    try Module:format_error(Error)
-    catch _:_ ->
-	format("Invalid value", [])
+    try
+        Module:format_error(Error)
+    catch
+        _:_ ->
+            format("Invalid value", [])
     end;
 format_error(Reason) ->
     yconf:format_error(Reason).
 
+
 -spec format_module(atom() | string()) -> string().
 format_module(Mod) when is_atom(Mod) ->
     format_module(atom_to_list(Mod));
 format_module(Mod) ->
     case Mod of
-	"Elixir." ++ M -> M;
-	M -> M
+        "Elixir." ++ M -> M;
+        M -> M
     end.
 
+
 format_module_type([listen, module]) ->
     "listening module";
 format_module_type([listen, request_handlers]) ->
@@ -221,18 +236,21 @@ format_module_type([listen, request_handlers]) ->
 format_module_type([modules]) ->
     "ejabberd module".
 
+
 format_known(_, Known) when length(Known) > 20 ->
     "";
 format_known(Prefix, Known) ->
     [Prefix, " are: ", format_join(Known)].
 
+
 format_join([]) ->
     "(empty)";
-format_join([H|_] = L) when is_atom(H) ->
-    format_join([atom_to_binary(A, utf8) || A <- L]);
+format_join([H | _] = L) when is_atom(H) ->
+    format_join([ atom_to_binary(A, utf8) || A <- L ]);
 format_join(L) ->
     str:join(lists:sort(L), <<", ">>).
 
+
 %% All duplicated options having list-values are grouped
 %% into a single option with all list-values being concatenated
 -spec group_dups(list(T)) -> list(T).
@@ -244,11 +262,14 @@ group_dups(Y1) ->
                     {Option, Vals} when is_list(Vals) ->
                         lists:keyreplace(Option, 1, Acc, {Option, Vals ++ Values});
                     _ ->
-                        [{Option, Values}|Acc]
+                        [{Option, Values} | Acc]
                 end;
            (Other, Acc) ->
-                [Other|Acc]
-        end, [], Y1)).
+                [Other | Acc]
+        end,
+        [],
+        Y1)).
+
 
 %%%===================================================================
 %%% Validators from yconf
@@ -256,371 +277,452 @@ group_dups(Y1) ->
 pos_int() ->
     yconf:pos_int().
 
+
 pos_int(Inf) ->
     yconf:pos_int(Inf).
 
+
 non_neg_int() ->
     yconf:non_neg_int().
 
+
 non_neg_int(Inf) ->
     yconf:non_neg_int(Inf).
 
+
 int() ->
     yconf:int().
 
+
 int(Min, Max) ->
     yconf:int(Min, Max).
 
+
 number(Min) ->
     yconf:number(Min).
 
+
 octal() ->
     yconf:octal().
 
+
 binary() ->
     yconf:binary().
 
+
 binary(Re) ->
     yconf:binary(Re).
 
+
 binary(Re, Opts) ->
     yconf:binary(Re, Opts).
 
+
 enum(L) ->
     yconf:enum(L).
 
+
 bool() ->
     yconf:bool().
 
+
 atom() ->
     yconf:atom().
 
+
 string() ->
     yconf:string().
 
+
 string(Re) ->
     yconf:string(Re).
 
+
 string(Re, Opts) ->
     yconf:string(Re, Opts).
 
+
 any() ->
     yconf:any().
 
+
 url() ->
     yconf:url().
 
+
 url(Schemes) ->
     yconf:url(Schemes).
 
+
 file() ->
     yconf:file().
 
+
 file(Type) ->
     yconf:file(Type).
 
+
 directory() ->
     yconf:directory().
 
+
 directory(Type) ->
     yconf:directory(Type).
 
+
 ip() ->
     yconf:ip().
 
+
 ipv4() ->
     yconf:ipv4().
 
+
 ipv6() ->
     yconf:ipv6().
 
+
 ip_mask() ->
     yconf:ip_mask().
 
+
 port() ->
     yconf:port().
 
+
 re() ->
     yconf:re().
 
+
 re(Opts) ->
     yconf:re(Opts).
 
+
 glob() ->
     yconf:glob().
 
+
 glob(Opts) ->
     yconf:glob(Opts).
 
+
 path() ->
     yconf:path().
 
+
 binary_sep(Sep) ->
     yconf:binary_sep(Sep).
 
+
 timeout(Units) ->
     yconf:timeout(Units).
 
+
 timeout(Units, Inf) ->
     yconf:timeout(Units, Inf).
 
+
 base64() ->
     yconf:base64().
 
+
 non_empty(F) ->
     yconf:non_empty(F).
 
+
 list(F) ->
     yconf:list(F).
 
+
 list(F, Opts) ->
     yconf:list(F, Opts).
 
+
 list_or_single(F) ->
     yconf:list_or_single(F).
 
+
 list_or_single(F, Opts) ->
     yconf:list_or_single(F, Opts).
 
+
 map(F1, F2) ->
     yconf:map(F1, F2).
 
+
 map(F1, F2, Opts) ->
     yconf:map(F1, F2, Opts).
 
+
 either(F1, F2) ->
     yconf:either(F1, F2).
 
+
 and_then(F1, F2) ->
     yconf:and_then(F1, F2).
 
+
 options(V) ->
     yconf:options(V).
 
+
 options(V, O) ->
     yconf:options(V, O).
 
+
 %%%===================================================================
 %%% Custom validators
 %%%===================================================================
 beam() ->
     beam([]).
 
+
 beam(Exports) ->
     and_then(
       non_empty(binary()),
       fun(<<"Elixir.", _/binary>> = Val) ->
-	      (yconf:beam(Exports))(Val);
-	 (<<C, _/binary>> = Val) when C >= $A, C =< $Z ->
-	      (yconf:beam(Exports))(<<"Elixir.", Val/binary>>);
-	 (Val) ->
-	      (yconf:beam(Exports))(Val)
+              (yconf:beam(Exports))(Val);
+         (<<C, _/binary>> = Val) when C >= $A, C =< $Z ->
+              (yconf:beam(Exports))(<<"Elixir.", Val/binary>>);
+         (Val) ->
+              (yconf:beam(Exports))(Val)
       end).
 
+
 acl() ->
     either(
       atom(),
       acl:access_rules_validator()).
 
+
 shaper() ->
     either(
       atom(),
       ejabberd_shaper:shaper_rules_validator()).
 
+
 -spec url_or_file() -> yconf:validator({file | url, binary()}).
 url_or_file() ->
     either(
       and_then(url(), fun(URL) -> {url, URL} end),
       and_then(file(), fun(File) -> {file, File} end)).
 
+
 -spec lang() -> yconf:validator(binary()).
 lang() ->
     and_then(
       binary(),
       fun(Lang) ->
-	      try xmpp_lang:check(Lang)
-	      catch _:_ -> fail({bad_lang, Lang})
-	      end
+              try
+                  xmpp_lang:check(Lang)
+              catch
+                  _:_ -> fail({bad_lang, Lang})
+              end
       end).
 
+
 -spec pem() -> yconf:validator(binary()).
 pem() ->
     and_then(
       path(),
       fun(Path) ->
-	      case pkix:is_pem_file(Path) of
-		  true -> Path;
-		  {false, Reason} ->
-		      fail({bad_pem, Reason, Path})
-	      end
+              case pkix:is_pem_file(Path) of
+                  true -> Path;
+                  {false, Reason} ->
+                      fail({bad_pem, Reason, Path})
+              end
       end).
 
+
 -spec jid() -> yconf:validator(jid:jid()).
 jid() ->
     and_then(
       binary(),
       fun(Val) ->
-	      try jid:decode(Val)
-	      catch _:{bad_jid, _} = Reason -> fail(Reason)
-	      end
+              try
+                  jid:decode(Val)
+              catch
+                  _:{bad_jid, _} = Reason -> fail(Reason)
+              end
       end).
 
+
 -spec user() -> yconf:validator(binary()).
 user() ->
     and_then(
       binary(),
       fun(Val) ->
-	      case jid:nodeprep(Val) of
-		  error -> fail({bad_user, Val});
-		  U -> U
-	      end
+              case jid:nodeprep(Val) of
+                  error -> fail({bad_user, Val});
+                  U -> U
+              end
       end).
 
+
 -spec domain() -> yconf:validator(binary()).
 domain() ->
     and_then(
       non_empty(binary()),
       fun(Val) ->
-	      try jid:tolower(jid:decode(Val)) of
-		  {<<"">>, <<"xn--", _/binary>> = Domain, <<"">>} ->
-		      unicode:characters_to_binary(idna:decode(binary_to_list(Domain)), utf8);
-		  {<<"">>, Domain, <<"">>} -> Domain;
-		  _ -> fail({bad_domain, Val})
-	      catch _:{bad_jid, _} ->
-		      fail({bad_domain, Val})
-	      end
+              try jid:tolower(jid:decode(Val)) of
+                  {<<"">>, <<"xn--", _/binary>> = Domain, <<"">>} ->
+                      unicode:characters_to_binary(idna:decode(binary_to_list(Domain)), utf8);
+                  {<<"">>, Domain, <<"">>} -> Domain;
+                  _ -> fail({bad_domain, Val})
+              catch
+                  _:{bad_jid, _} ->
+                      fail({bad_domain, Val})
+              end
       end).
 
+
 -spec resource() -> yconf:validator(binary()).
 resource() ->
     and_then(
       binary(),
       fun(Val) ->
-	      case jid:resourceprep(Val) of
-		  error -> fail({bad_resource, Val});
-		  R -> R
-	      end
+              case jid:resourceprep(Val) of
+                  error -> fail({bad_resource, Val});
+                  R -> R
+              end
       end).
 
+
 -spec db_type(module()) -> yconf:validator(atom()).
 db_type(M) ->
     and_then(
       atom(),
       fun(T) ->
-        case code:ensure_loaded(db_module(M, T)) of
-          {module, _} -> T;
-          {error, _} ->
-            ElixirModule = "Elixir." ++ atom_to_list(T),
-            case code:ensure_loaded(list_to_atom(ElixirModule)) of
-              {module, _} -> list_to_atom(ElixirModule);
-              {error, _} -> fail({bad_db_type, M, T})
-            end
-          end
+              case code:ensure_loaded(db_module(M, T)) of
+                  {module, _} -> T;
+                  {error, _} ->
+                      ElixirModule = "Elixir." ++ atom_to_list(T),
+                      case code:ensure_loaded(list_to_atom(ElixirModule)) of
+                          {module, _} -> list_to_atom(ElixirModule);
+                          {error, _} -> fail({bad_db_type, M, T})
+                      end
+              end
       end).
 
+
 -spec queue_type() -> yconf:validator(ram | file).
 queue_type() ->
     enum([ram, file]).
 
+
 -spec ldap_filter() -> yconf:validator(binary()).
 ldap_filter() ->
     and_then(
       binary(),
       fun(Val) ->
-	      case eldap_filter:parse(Val) of
-		  {ok, _} -> Val;
-		  _ -> fail({bad_ldap_filter, Val})
-	      end
+              case eldap_filter:parse(Val) of
+                  {ok, _} -> Val;
+                  _ -> fail({bad_ldap_filter, Val})
+              end
       end).
 
+
 -ifdef(SIP).
+
+
 sip_uri() ->
     and_then(
       binary(),
       fun(Val) ->
-	      case esip:decode_uri(Val) of
-		  error -> fail({bad_sip_uri, Val});
-		  URI -> URI
-	      end
+              case esip:decode_uri(Val) of
+                  error -> fail({bad_sip_uri, Val});
+                  URI -> URI
+              end
       end).
+
+
 -endif.
 
+
 -spec host() -> yconf:validator(binary()).
 host() ->
     fun(Domain) ->
-	    Hosts = ejabberd_config:get_option(hosts),
-	    Domain3 = (domain())(Domain),
-	    case lists:member(Domain3, Hosts) of
-		true -> fail({route_conflict, Domain});
-		false -> Domain3
-	    end
+            Hosts = ejabberd_config:get_option(hosts),
+            Domain3 = (domain())(Domain),
+            case lists:member(Domain3, Hosts) of
+                true -> fail({route_conflict, Domain});
+                false -> Domain3
+            end
     end.
 
+
 -spec hosts() -> yconf:validator([binary()]).
 hosts() ->
     list(host(), [unique]).
 
+
 -spec vcard_temp() -> yconf:validator().
 vcard_temp() ->
     and_then(
-	vcard_validator(
-	    vcard_temp, undefined,
-	    [{version, undefined, binary()},
-	     {fn, undefined, binary()},
-	     {n, undefined, vcard_name()},
-	     {nickname, undefined, binary()},
-	     {photo, undefined, vcard_photo()},
-	     {bday, undefined, binary()},
-	     {adr, [], list(vcard_adr())},
-	     {label, [], list(vcard_label())},
-	     {tel, [], list(vcard_tel())},
-	     {email, [], list(vcard_email())},
-	     {jabberid, undefined, binary()},
-	     {mailer, undefined, binary()},
-	     {tz, undefined, binary()},
-	     {geo, undefined, vcard_geo()},
-	     {title, undefined, binary()},
-	     {role, undefined, binary()},
-	     {logo, undefined, vcard_logo()},
-	     {org, undefined, vcard_org()},
-	     {categories, [], list(binary())},
-	     {note, undefined, binary()},
-	     {prodid, undefined, binary()},
-	     {rev, undefined, binary()},
-	     {sort_string, undefined, binary()},
-	     {sound, undefined, vcard_sound()},
-	     {uid, undefined, binary()},
-	     {url, undefined, binary()},
-	     {class, undefined, enum([confidential, private, public])},
-	     {key, undefined, vcard_key()},
-	     {desc, undefined, binary()}]),
-	fun(Tuple) ->
-	    list_to_tuple(tuple_to_list(Tuple) ++ [[]])
-	end).
+      vcard_validator(
+        vcard_temp,
+        undefined,
+        [{version, undefined, binary()},
+         {fn, undefined, binary()},
+         {n, undefined, vcard_name()},
+         {nickname, undefined, binary()},
+         {photo, undefined, vcard_photo()},
+         {bday, undefined, binary()},
+         {adr, [], list(vcard_adr())},
+         {label, [], list(vcard_label())},
+         {tel, [], list(vcard_tel())},
+         {email, [], list(vcard_email())},
+         {jabberid, undefined, binary()},
+         {mailer, undefined, binary()},
+         {tz, undefined, binary()},
+         {geo, undefined, vcard_geo()},
+         {title, undefined, binary()},
+         {role, undefined, binary()},
+         {logo, undefined, vcard_logo()},
+         {org, undefined, vcard_org()},
+         {categories, [], list(binary())},
+         {note, undefined, binary()},
+         {prodid, undefined, binary()},
+         {rev, undefined, binary()},
+         {sort_string, undefined, binary()},
+         {sound, undefined, vcard_sound()},
+         {uid, undefined, binary()},
+         {url, undefined, binary()},
+         {class, undefined, enum([confidential, private, public])},
+         {key, undefined, vcard_key()},
+         {desc, undefined, binary()}]),
+      fun(Tuple) ->
+              list_to_tuple(tuple_to_list(Tuple) ++ [[]])
+      end).
 
 
 -spec vcard_name() -> yconf:validator().
 vcard_name() ->
     vcard_validator(
-      vcard_name, undefined,
+      vcard_name,
+      undefined,
       [{family, undefined, binary()},
        {given, undefined, binary()},
        {middle, undefined, binary()},
        {prefix, undefined, binary()},
        {suffix, undefined, binary()}]).
 
+
 -spec vcard_photo() -> yconf:validator().
 vcard_photo() ->
     vcard_validator(
-      vcard_photo, undefined,
+      vcard_photo,
+      undefined,
       [{type, undefined, binary()},
        {binval, undefined, base64()},
        {extval, undefined, binary()}]).
 
+
 -spec vcard_adr() -> yconf:validator().
 vcard_adr() ->
     vcard_validator(
-      vcard_adr, [],
+      vcard_adr,
+      [],
       [{home, false, bool()},
        {work, false, bool()},
        {postal, false, bool()},
@@ -636,10 +738,12 @@ vcard_adr() ->
        {pcode, undefined, binary()},
        {ctry, undefined, binary()}]).
 
+
 -spec vcard_label() -> yconf:validator().
 vcard_label() ->
     vcard_validator(
-      vcard_label, [],
+      vcard_label,
+      [],
       [{home, false, bool()},
        {work, false, bool()},
        {postal, false, bool()},
@@ -649,10 +753,12 @@ vcard_label() ->
        {pref, false, bool()},
        {line, [], list(binary())}]).
 
+
 -spec vcard_tel() -> yconf:validator().
 vcard_tel() ->
     vcard_validator(
-      vcard_tel, [],
+      vcard_tel,
+      [],
       [{home, false, bool()},
        {work, false, bool()},
        {voice, false, bool()},
@@ -668,10 +774,12 @@ vcard_tel() ->
        {pref, false, bool()},
        {number, undefined, binary()}]).
 
+
 -spec vcard_email() -> yconf:validator().
 vcard_email() ->
     vcard_validator(
-      vcard_email, [],
+      vcard_email,
+      [],
       [{home, false, bool()},
        {work, false, bool()},
        {internet, false, bool()},
@@ -679,77 +787,94 @@ vcard_email() ->
        {x400, false, bool()},
        {userid, undefined, binary()}]).
 
+
 -spec vcard_geo() -> yconf:validator().
 vcard_geo() ->
     vcard_validator(
-      vcard_geo, undefined,
+      vcard_geo,
+      undefined,
       [{lat, undefined, binary()},
        {lon, undefined, binary()}]).
 
+
 -spec vcard_logo() -> yconf:validator().
 vcard_logo() ->
     vcard_validator(
-      vcard_logo, undefined,
+      vcard_logo,
+      undefined,
       [{type, undefined, binary()},
        {binval, undefined, base64()},
        {extval, undefined, binary()}]).
 
+
 -spec vcard_org() -> yconf:validator().
 vcard_org() ->
     vcard_validator(
-      vcard_org, undefined,
+      vcard_org,
+      undefined,
       [{name, undefined, binary()},
        {units, [], list(binary())}]).
 
+
 -spec vcard_sound() -> yconf:validator().
 vcard_sound() ->
     vcard_validator(
-      vcard_sound, undefined,
+      vcard_sound,
+      undefined,
       [{phonetic, undefined, binary()},
        {binval, undefined, base64()},
        {extval, undefined, binary()}]).
 
+
 -spec vcard_key() -> yconf:validator().
 vcard_key() ->
     vcard_validator(
-      vcard_key, undefined,
+      vcard_key,
+      undefined,
       [{type, undefined, binary()},
        {cred, undefined, binary()}]).
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
 -spec db_module(module(), atom()) -> module().
 db_module(M, Type) ->
-    try list_to_atom(atom_to_list(M) ++ "_" ++ atom_to_list(Type))
-    catch _:system_limit ->
-	    fail({bad_length, 255})
+    try
+        list_to_atom(atom_to_list(M) ++ "_" ++ atom_to_list(Type))
+    catch
+        _:system_limit ->
+            fail({bad_length, 255})
     end.
 
+
 format_addr_port({IP, Port}) ->
     IPStr = case tuple_size(IP) of
-		4 -> inet:ntoa(IP);
-		8 -> "[" ++ inet:ntoa(IP) ++ "]"
-	    end,
+                4 -> inet:ntoa(IP);
+                8 -> "[" ++ inet:ntoa(IP) ++ "]"
+            end,
     IPStr ++ ":" ++ integer_to_list(Port).
 
+
 -spec format(iolist(), list()) -> string().
 format(Fmt, Args) ->
     lists:flatten(io_lib:format(Fmt, Args)).
 
+
 -spec vcard_validator(atom(), term(), [{atom(), term(), validator()}]) -> validator().
 vcard_validator(Name, Default, Schema) ->
-    Defaults = [{Key, Val} || {Key, Val, _} <- Schema],
+    Defaults = [ {Key, Val} || {Key, Val, _} <- Schema ],
     and_then(
       options(
-	maps:from_list([{Key, Fun} || {Key, _, Fun} <- Schema]),
-	[{return, map}, {unique, true}]),
+        maps:from_list([ {Key, Fun} || {Key, _, Fun} <- Schema ]),
+        [{return, map}, {unique, true}]),
       fun(Options) ->
-	      merge(Defaults, Options, Name, Default)
+              merge(Defaults, Options, Name, Default)
       end).
 
+
 -spec merge([{atom(), term()}], #{atom() => term()}, atom(), T) -> tuple() | T.
 merge(_, Options, _, Default) when Options == #{} ->
     Default;
 merge(Defaults, Options, Name, _) ->
-    list_to_tuple([Name|[maps:get(Key, Options, Val) || {Key, Val} <- Defaults]]).
+    list_to_tuple([Name | [ maps:get(Key, Options, Val) || {Key, Val} <- Defaults ]]).

src/ejabberd.erl

@@ -43,56 +43,70 @@
 -protocol({xep, 440, '0.4.0', '24.02', "complete", ""}).
 -protocol({xep, 474, '0.4.0', '24.02', "complete", "0.4.0 since 25.03"}).
 
--export([start/0, stop/0, halt/0, start_app/1, start_app/2,
-	 get_pid_file/0, check_apps/0, module_name/1, is_loaded/0]).
+-export([start/0,
+         stop/0,
+         halt/0,
+         start_app/1, start_app/2,
+         get_pid_file/0,
+         check_apps/0,
+         module_name/1,
+         is_loaded/0]).
 
 -include("logger.hrl").
 
+
 start() ->
     case application:ensure_all_started(ejabberd) of
-      {error, Err} -> error_logger:error_msg("Failed to start ejabberd application: ~p", [Err]);
-      Ok -> Ok
+        {error, Err} -> error_logger:error_msg("Failed to start ejabberd application: ~p", [Err]);
+        Ok -> Ok
     end.
 
+
 stop() ->
     application:stop(ejabberd).
 
+
 halt() ->
     ejabberd_logger:flush(),
     erlang:halt(1, [{flush, true}]).
 
+
 -spec get_pid_file() -> false | string().
 get_pid_file() ->
     case os:getenv("EJABBERD_PID_PATH") of
-	false ->
-	    false;
-	"" ->
-	    false;
-	Path ->
-	    Path
+        false ->
+            false;
+        "" ->
+            false;
+        Path ->
+            Path
     end.
 
+
 start_app(App) ->
     start_app(App, temporary).
 
+
 start_app(App, Type) ->
     StartFlag = not is_loaded(),
     start_app(App, Type, StartFlag).
 
+
 is_loaded() ->
     Apps = application:which_applications(),
     lists:keymember(ejabberd, 1, Apps).
 
+
 start_app(App, Type, StartFlag) when is_atom(App) ->
     start_app([App], Type, StartFlag);
-start_app([App|Apps], Type, StartFlag) ->
-    case application:start(App,Type) of
+start_app([App | Apps], Type, StartFlag) ->
+    case application:start(App, Type) of
         ok ->
             start_app(Apps, Type, StartFlag);
         {error, {already_started, _}} ->
             start_app(Apps, Type, StartFlag);
         {error, {not_started, DepApp}} ->
-            case lists:member(DepApp, [App|Apps]) of
+            case lists:member(DepApp, [App | Apps]) of
                 true ->
                     Reason = io_lib:format(
                                "Failed to start Erlang application '~ts': "
@@ -100,17 +114,18 @@ start_app([App|Apps], Type, StartFlag) ->
                                [App, DepApp]),
                     exit_or_halt(Reason, StartFlag);
                 false ->
-                    start_app([DepApp,App|Apps], Type, StartFlag)
+                    start_app([DepApp, App | Apps], Type, StartFlag)
             end;
         {error, Why} ->
             Reason = io_lib:format(
-		       "Failed to start Erlang application '~ts': ~ts. ~ts",
-		       [App, format_error(Why), hint()]),
+                       "Failed to start Erlang application '~ts': ~ts. ~ts",
+                       [App, format_error(Why), hint()]),
             exit_or_halt(Reason, StartFlag)
     end;
 start_app([], _Type, _StartFlag) ->
     ok.
 
+
 check_app_modules(App, StartFlag) ->
     case application:get_key(App, modules) of
         {ok, Mods} ->
@@ -121,44 +136,50 @@ check_app_modules(App, StartFlag) ->
                               File = get_module_file(App, Mod),
                               Reason = io_lib:format(
                                          "Couldn't find file ~ts needed "
-					 "for Erlang application '~ts'. ~ts",
+                                         "for Erlang application '~ts'. ~ts",
                                          [File, App, hint()]),
                               exit_or_halt(Reason, StartFlag);
                           _ ->
-			      ok
+                              ok
                       end
-              end, Mods);
+              end,
+              Mods);
         _ ->
             %% No modules? This is strange
             ok
     end.
 
+
 check_apps() ->
     spawn(
       fun() ->
-	      Apps = [ejabberd |
-		      [App || {App, _, _} <- application:which_applications(),
-			      App /= ejabberd, App /= hex]],
-	      ?DEBUG("Checking consistency of applications: ~ts",
-		     [misc:join_atoms(Apps, <<", ">>)]),
-	      misc:peach(
-		fun(App) ->
-			check_app_modules(App, true)
-		end, Apps),
-	      ?DEBUG("All applications are intact", []),
-	      lists:foreach(fun erlang:garbage_collect/1, processes())
+              Apps = [ejabberd | [ App || {App, _, _} <- application:which_applications(),
+                                          App /= ejabberd,
+                                          App /= hex ]],
+              ?DEBUG("Checking consistency of applications: ~ts",
+                     [misc:join_atoms(Apps, <<", ">>)]),
+              misc:peach(
+                fun(App) ->
+                        check_app_modules(App, true)
+                end,
+                Apps),
+              ?DEBUG("All applications are intact", []),
+              lists:foreach(fun erlang:garbage_collect/1, processes())
       end).
 
+
 -spec exit_or_halt(iodata(), boolean()) -> no_return().
 exit_or_halt(Reason, StartFlag) ->
     ?CRITICAL_MSG(Reason, []),
-    if StartFlag ->
+    if
+        StartFlag ->
             %% Wait for the critical message is written in the console/log
             halt();
-       true ->
+        true ->
             erlang:error(application_start_failed)
     end.
 
+
 get_module_file(App, Mod) ->
     BaseName = atom_to_list(Mod),
     case code:lib_dir(App) of
@@ -168,46 +189,51 @@ get_module_file(App, Mod) ->
             filename:join([Dir, "ebin", BaseName ++ ".beam"])
     end.
 
-module_name([Dir, _, <<H,_/binary>> | _] = Mod) when H >= 65, H =< 90 ->
-    Module = str:join([elixir_name(M) || M<-tl(Mod)], <<>>),
+
+module_name([Dir, _, <<H, _/binary>> | _] = Mod) when H >= 65, H =< 90 ->
+    Module = str:join([ elixir_name(M) || M <- tl(Mod) ], <<>>),
     Prefix = case elixir_name(Dir) of
-	<<"Ejabberd">> -> <<"Elixir.Ejabberd.">>;
-	Lib -> <<"Elixir.Ejabberd.", Lib/binary, ".">>
-    end,
+                 <<"Ejabberd">> -> <<"Elixir.Ejabberd.">>;
+                 Lib -> <<"Elixir.Ejabberd.", Lib/binary, ".">>
+             end,
     misc:binary_to_atom(<<Prefix/binary, Module/binary>>);
 
 module_name([<<"auth">> | T] = Mod) ->
     case hd(T) of
         %% T already starts with "Elixir" if an Elixir module is
         %% loaded with that name, as per `econf:db_type/1`
-        <<"Elixir", _/binary>> ->  misc:binary_to_atom(hd(T));
+        <<"Elixir", _/binary>> -> misc:binary_to_atom(hd(T));
         _ -> module_name([<<"ejabberd">>] ++ Mod)
     end;
 
 module_name([<<"ejabberd">> | _] = Mod) ->
-    Module = str:join([erlang_name(M) || M<-Mod], $_),
+    Module = str:join([ erlang_name(M) || M <- Mod ], $_),
     misc:binary_to_atom(Module);
 module_name(Mod) when is_list(Mod) ->
-    Module = str:join([erlang_name(M) || M<-tl(Mod)], $_),
+    Module = str:join([ erlang_name(M) || M <- tl(Mod) ], $_),
     misc:binary_to_atom(Module).
 
+
 elixir_name(Atom) when is_atom(Atom) ->
     elixir_name(misc:atom_to_binary(Atom));
-elixir_name(<<H,T/binary>>) when H >= 65, H =< 90 ->
+elixir_name(<<H, T/binary>>) when H >= 65, H =< 90 ->
     <<H, T/binary>>;
-elixir_name(<<H,T/binary>>) ->
-    <<(H-32), T/binary>>.
+elixir_name(<<H, T/binary>>) ->
+    <<(H - 32), T/binary>>.
+
 
 erlang_name(Atom) when is_atom(Atom) ->
     misc:atom_to_binary(Atom);
 erlang_name(Bin) when is_binary(Bin) ->
     Bin.
 
+
 format_error({Reason, File}) when is_list(Reason), is_list(File) ->
     Reason ++ ": " ++ File;
 format_error(Term) ->
     io_lib:format("~p", [Term]).
 
+
 hint() ->
     "This usually means that ejabberd or Erlang "
     "was compiled/installed incorrectly.".

src/ejabberd_access_permissions.erl

@@ -32,41 +32,43 @@
 
 %% API
 -export([start_link/0,
-	 can_access/2,
-	 invalidate/0,
-	 validator/0,
-	 show_current_definitions/0]).
+         can_access/2,
+         invalidate/0,
+         validator/0,
+         show_current_definitions/0]).
 
 %% gen_server callbacks
 -export([init/1,
-	 handle_call/3,
-	 handle_cast/2,
-	 handle_info/2,
-	 terminate/2,
-	 code_change/3]).
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 
--define(SERVER, ?MODULE).
+-define(SERVER,    ?MODULE).
 -define(CACHE_TAB, access_permissions_cache).
 
--record(state,
-	{definitions = none :: none | [definition()]}).
+-record(state, {definitions = none :: none | [definition()]}).
 
 -type state() :: #state{}.
 -type rule() :: {access, acl:access()} |
-		{acl, all | none | acl:acl_rule()}.
+                {acl, all | none | acl:acl_rule()}.
 -type what() :: all | none | [atom() | {tag, atom()}].
 -type who() :: rule() | {oauth, {[binary()], [rule()]}}.
 -type from() :: atom().
 -type permission() :: {binary(), {[from()], [who()], {what(), what()}}}.
 -type definition() :: {binary(), {[from()], [who()], [atom()] | all}}.
--type caller_info() :: #{caller_module => module(),
-			 caller_host => global | binary(),
-			 tag => binary() | none,
-			 extra_permissions => [definition()],
-			 atom() => term()}.
+-type caller_info() :: #{
+                         caller_module => module(),
+                         caller_host => global | binary(),
+                         tag => binary() | none,
+                         extra_permissions => [definition()],
+                         atom() => term()
+                        }.
 
 -export_type([permission/0]).
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
@@ -78,41 +80,51 @@ can_access(Cmd, CallerInfo) ->
     Tag = maps:get(tag, CallerInfo, none),
     Defs = maps:get(extra_permissions, CallerInfo, []) ++ Defs0,
     Res = lists:foldl(
-	fun({Name, _} = Def, none) ->
-	    case matches_definition(Def, Cmd, CallerModule, Tag, Host, CallerInfo) of
-		true ->
-		    ?DEBUG("Command '~p' execution allowed by rule "
-			   "'~ts'~n (CallerInfo=~p)", [Cmd, Name, CallerInfo]),
-		    allow;
-		_ ->
-		    none
-	    end;
-	   (_, Val) ->
-	       Val
-	end, none, Defs),
+            fun({Name, _} = Def, none) ->
+                    case matches_definition(Def, Cmd, CallerModule, Tag, Host, CallerInfo) of
+                        true ->
+                            ?DEBUG("Command '~p' execution allowed by rule "
+                                   "'~ts'~n (CallerInfo=~p)",
+                                   [Cmd, Name, CallerInfo]),
+                            allow;
+                        _ ->
+                            none
+                    end;
+               (_, Val) ->
+                    Val
+            end,
+            none,
+            Defs),
     case Res of
-	allow -> allow;
-	_ ->
-	    ?DEBUG("Command '~p' execution denied~n "
-		   "(CallerInfo=~p)", [Cmd, CallerInfo]),
-	    deny
+        allow -> allow;
+        _ ->
+            ?DEBUG("Command '~p' execution denied~n "
+                   "(CallerInfo=~p)",
+                   [Cmd, CallerInfo]),
+            deny
     end.
 
+
 -spec invalidate() -> ok.
 invalidate() ->
     gen_server:cast(?MODULE, invalidate),
     ets_cache:delete(?CACHE_TAB, definitions).
 
+
 -spec show_current_definitions() -> [definition()].
 show_current_definitions() ->
-    ets_cache:lookup(?CACHE_TAB, definitions,
-		     fun() ->
-			 {cache, gen_server:call(?MODULE, show_current_definitions)}
-		     end).
+    ets_cache:lookup(?CACHE_TAB,
+                     definitions,
+                     fun() ->
+                             {cache, gen_server:call(?MODULE, show_current_definitions)}
+                     end).
+
+
 start_link() ->
     ets_cache:new(?CACHE_TAB, [{max_size, 2}]),
     gen_server:start_link({local, ?SERVER}, ?MODULE, [], []).
 
+
 %%%===================================================================
 %%% gen_server callbacks
 %%%===================================================================
@@ -122,8 +134,10 @@ init([]) ->
     ets_cache:new(access_permissions),
     {ok, #state{}}.
 
+
 -spec handle_call(show_current_definitions | term(),
-		  term(), state()) -> {reply, term(), state()}.
+                  term(),
+                  state()) -> {reply, term(), state()}.
 handle_call(show_current_definitions, _From, State) ->
     {State2, Defs} = get_definitions(State),
     {reply, Defs, State2};
@@ -131,6 +145,7 @@ handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 -spec handle_cast(invalidate | term(), state()) -> {noreply, state()}.
 handle_cast(invalidate, State) ->
     {noreply, State#state{definitions = none}};
@@ -138,16 +153,20 @@ handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 terminate(_Reason, _State) ->
     ejabberd_hooks:delete(config_reloaded, ?MODULE, invalidate, 90).
 
+
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
@@ -158,81 +177,93 @@ get_definitions(#state{definitions = none} = State) ->
     ApiPerms = ejabberd_option:api_permissions(),
     AllCommands = ejabberd_commands:get_commands_definition(),
     NDefs0 = lists:map(
-	       fun({Name, {From, Who, {Add, Del}}}) ->
-		       Cmds = filter_commands_with_permissions(AllCommands, Add, Del),
-		       {Name, {From, Who, Cmds}}
-	       end, ApiPerms),
+               fun({Name, {From, Who, {Add, Del}}}) ->
+                       Cmds = filter_commands_with_permissions(AllCommands, Add, Del),
+                       {Name, {From, Who, Cmds}}
+               end,
+               ApiPerms),
     NDefs = case lists:keyfind(<<"console commands">>, 1, NDefs0) of
-		false ->
-		    [{<<"console commands">>,
-		      {[ejabberd_ctl],
-		       [{acl, all}],
-		       filter_commands_with_permissions(AllCommands, all, none)}} | NDefs0];
-		_ ->
-		    NDefs0
-	    end,
+                false ->
+                    [{<<"console commands">>,
+                      {[ejabberd_ctl],
+                       [{acl, all}],
+                       filter_commands_with_permissions(AllCommands, all, none)}} | NDefs0];
+                _ ->
+                    NDefs0
+            end,
     {State#state{definitions = NDefs}, NDefs}.
 
--spec matches_definition(definition(), atom(), module(),
-			 atom(), global | binary(), caller_info()) -> boolean().
+
+-spec matches_definition(definition(),
+                         atom(),
+                         module(),
+                         atom(),
+                         global | binary(),
+                         caller_info()) -> boolean().
 matches_definition({_Name, {From, Who, What}}, Cmd, Module, Tag, Host, CallerInfo) ->
     case What == all orelse lists:member(Cmd, What) of
-	true ->
-	    {Tags, Modules} = lists:partition(fun({tag, _}) -> true; (_) -> false end, From),
-	    case (Modules == [] orelse lists:member(Module, Modules)) andalso
-		 (Tags == [] orelse lists:member({tag, Tag}, Tags)) of
-		true ->
-		    Scope = maps:get(oauth_scope, CallerInfo, none),
-		    lists:any(
-		      fun({access, Access}) when Scope == none ->
-			      acl:match_rule(Host, Access, CallerInfo) == allow;
-			 ({acl, Name} = Acl) when Scope == none, is_atom(Name) ->
-			      acl:match_acl(Host, Acl, CallerInfo);
-			 ({acl, Acl}) when Scope == none ->
-			      acl:match_acl(Host, Acl, CallerInfo);
-			 ({oauth, {Scopes, List}}) when Scope /= none ->
-			      case ejabberd_oauth:scope_in_scope_list(Scope, Scopes) of
-				  true ->
-				      lists:any(
-					fun({access, Access}) ->
-						acl:match_rule(Host, Access, CallerInfo) == allow;
-					   ({acl, Name} = Acl) when is_atom(Name) ->
-						acl:match_acl(Host, Acl, CallerInfo);
-					   ({acl, Acl}) ->
-						acl:match_acl(Host, Acl, CallerInfo)
-					end, List);
-				  _ ->
-				      false
-			      end;
-			 (_) ->
-			      false
-		      end, Who);
-		_ ->
-		    false
-	    end;
-	_ ->
-	    false
+        true ->
+            {Tags, Modules} = lists:partition(fun({tag, _}) -> true; (_) -> false end, From),
+            case (Modules == [] orelse lists:member(Module, Modules)) andalso
+                 (Tags == [] orelse lists:member({tag, Tag}, Tags)) of
+                true ->
+                    Scope = maps:get(oauth_scope, CallerInfo, none),
+                    lists:any(
+                      fun({access, Access}) when Scope == none ->
+                              acl:match_rule(Host, Access, CallerInfo) == allow;
+                         ({acl, Name} = Acl) when Scope == none, is_atom(Name) ->
+                              acl:match_acl(Host, Acl, CallerInfo);
+                         ({acl, Acl}) when Scope == none ->
+                              acl:match_acl(Host, Acl, CallerInfo);
+                         ({oauth, {Scopes, List}}) when Scope /= none ->
+                              case ejabberd_oauth:scope_in_scope_list(Scope, Scopes) of
+                                  true ->
+                                      lists:any(
+                                        fun({access, Access}) ->
+                                                acl:match_rule(Host, Access, CallerInfo) == allow;
+                                           ({acl, Name} = Acl) when is_atom(Name) ->
+                                                acl:match_acl(Host, Acl, CallerInfo);
+                                           ({acl, Acl}) ->
+                                                acl:match_acl(Host, Acl, CallerInfo)
+                                        end,
+                                        List);
+                                  _ ->
+                                      false
+                              end;
+                         (_) ->
+                              false
+                      end,
+                      Who);
+                _ ->
+                    false
+            end;
+        _ ->
+            false
     end.
 
+
 -spec filter_commands_with_permissions([#ejabberd_commands{}], what(), what()) -> [atom()].
 filter_commands_with_permissions(AllCommands, Add, Del) ->
     CommandsAdd = filter_commands_with_patterns(AllCommands, Add, []),
     CommandsDel = filter_commands_with_patterns(CommandsAdd, Del, []),
     lists:map(fun(#ejabberd_commands{name = N}) -> N end,
-	      CommandsAdd -- CommandsDel).
+              CommandsAdd -- CommandsDel).
 
--spec filter_commands_with_patterns([#ejabberd_commands{}], what(),
-				    [#ejabberd_commands{}]) -> [#ejabberd_commands{}].
+
+-spec filter_commands_with_patterns([#ejabberd_commands{}],
+                                    what(),
+                                    [#ejabberd_commands{}]) -> [#ejabberd_commands{}].
 filter_commands_with_patterns([], _Patterns, Acc) ->
     Acc;
 filter_commands_with_patterns([C | CRest], Patterns, Acc) ->
     case command_matches_patterns(C, Patterns) of
-	true ->
-	    filter_commands_with_patterns(CRest, Patterns, [C | Acc]);
-	_ ->
-	    filter_commands_with_patterns(CRest, Patterns, Acc)
+        true ->
+            filter_commands_with_patterns(CRest, Patterns, [C | Acc]);
+        _ ->
+            filter_commands_with_patterns(CRest, Patterns, Acc)
     end.
 
+
 -spec command_matches_patterns(#ejabberd_commands{}, what()) -> boolean().
 command_matches_patterns(_, all) ->
     true;
@@ -242,46 +273,50 @@ command_matches_patterns(_, []) ->
     false;
 command_matches_patterns(#ejabberd_commands{tags = Tags} = C, [{tag, Tag} | Tail]) ->
     case lists:member(Tag, Tags) of
-	true ->
-	    true;
-	_ ->
-	    command_matches_patterns(C, Tail)
+        true ->
+            true;
+        _ ->
+            command_matches_patterns(C, Tail)
     end;
 command_matches_patterns(#ejabberd_commands{name = Name}, [Name | _Tail]) ->
     true;
 command_matches_patterns(C, [_ | Tail]) ->
     command_matches_patterns(C, Tail).
 
+
 %%%===================================================================
 %%% Validators
 %%%===================================================================
 -spec parse_what([binary()]) -> {what(), what()}.
 parse_what(Defs) ->
     {A, D} =
-	lists:foldl(
-	  fun(Def, {Add, Del}) ->
-		  case parse_single_what(Def) of
-		      {error, Err} ->
-			  econf:fail({invalid_syntax, [Err, ": ", Def]});
-		      all ->
-			  {case Add of none -> none; _ -> all end, Del};
-		      {neg, all} ->
-			  {none, all};
-		      {neg, Value} ->
-			  {Add, case Del of L when is_list(L) -> [Value | L]; L2 -> L2 end};
-		      Value ->
-			  {case Add of L when is_list(L) -> [Value | L]; L2 -> L2 end, Del}
-		  end
-	  end, {[], []}, Defs),
+        lists:foldl(
+          fun(Def, {Add, Del}) ->
+                  case parse_single_what(Def) of
+                      {error, Err} ->
+                          econf:fail({invalid_syntax, [Err, ": ", Def]});
+                      all ->
+                          {case Add of none -> none; _ -> all end, Del};
+                      {neg, all} ->
+                          {none, all};
+                      {neg, Value} ->
+                          {Add, case Del of L when is_list(L) -> [Value | L]; L2 -> L2 end};
+                      Value ->
+                          {case Add of L when is_list(L) -> [Value | L]; L2 -> L2 end, Del}
+                  end
+          end,
+          {[], []},
+          Defs),
     case {A, D} of
-	{[], _} ->
-	    {none, all};
-	{A2, []} ->
-	    {A2, none};
-	V ->
-	    V
+        {[], _} ->
+            {none, all};
+        {A2, []} ->
+            {A2, none};
+        V ->
+            V
     end.
 
+
 -spec parse_single_what(binary()) -> atom() | {neg, atom()} | {tag, atom()} | {error, string()}.
 parse_single_what(<<"*">>) ->
     all;
@@ -289,70 +324,76 @@ parse_single_what(<<"!*">>) ->
     {neg, all};
 parse_single_what(<<"!", Rest/binary>>) ->
     case parse_single_what(Rest) of
-	{neg, _} ->
-	    {error, "double negation"};
-	{error, _} = Err ->
-	    Err;
-	V ->
-	    {neg, V}
+        {neg, _} ->
+            {error, "double negation"};
+        {error, _} = Err ->
+            Err;
+        V ->
+            {neg, V}
     end;
 parse_single_what(<<"[tag:", Rest/binary>>) ->
     case binary:split(Rest, <<"]">>) of
-	[TagName, <<"">>] ->
-	    case parse_single_what(TagName) of
-		{error, _} = Err ->
-		    Err;
-		V when is_atom(V) ->
-		    {tag, V};
-		_ ->
-		    {error, "invalid tag"}
-	    end;
-	_ ->
-	    {error, "invalid tag"}
+        [TagName, <<"">>] ->
+            case parse_single_what(TagName) of
+                {error, _} = Err ->
+                    Err;
+                V when is_atom(V) ->
+                    {tag, V};
+                _ ->
+                    {error, "invalid tag"}
+            end;
+        _ ->
+            {error, "invalid tag"}
     end;
 parse_single_what(B) ->
     case re:run(B, "^[a-z0-9_\\-]*$") of
-	nomatch -> {error, "invalid command"};
-	_ -> binary_to_atom(B, latin1)
+        nomatch -> {error, "invalid command"};
+        _ -> binary_to_atom(B, latin1)
     end.
 
+
 validator(Map, Opts) ->
     econf:and_then(
       fun(L) when is_list(L) ->
               lists:map(
                 fun({K, V}) -> {(econf:atom())(K), V};
                    (A) -> {acl, (econf:atom())(A)}
-                end, lists:flatten(L));
+                end,
+                lists:flatten(L));
          (A) ->
               [{acl, (econf:atom())(A)}]
       end,
       econf:and_then(
-	econf:options(maps:merge(acl:validators(), Map), Opts),
-	fun(Rules) ->
-		lists:flatmap(
-		  fun({Type, Rs}) when is_list(Rs) ->
-			  case maps:is_key(Type, acl:validators()) of
-			      true -> [{acl, {Type, R}} || R <- Rs];
-			      false -> [{Type, Rs}]
-			  end;
-		     (Other) ->
-			  [Other]
-		  end, Rules)
-	end)).
+        econf:options(maps:merge(acl:validators(), Map), Opts),
+        fun(Rules) ->
+                lists:flatmap(
+                  fun({Type, Rs}) when is_list(Rs) ->
+                          case maps:is_key(Type, acl:validators()) of
+                              true -> [ {acl, {Type, R}} || R <- Rs ];
+                              false -> [{Type, Rs}]
+                          end;
+                     (Other) ->
+                          [Other]
+                  end,
+                  Rules)
+        end)).
+
 
 validator(from) ->
     fun(L) when is_list(L) ->
-	    lists:map(
-	      fun({K, V}) -> {(econf:enum([tag]))(K), (econf:binary())(V)};
-		 (A) -> (econf:enum([ejabberd_ctl,
-                                     ejabberd_web_admin,
-                                     ejabberd_xmlrpc,
-                                     mod_adhoc_api,
-                                     mod_cron,
-                                     mod_http_api]))(A)
-	      end, lists:flatten(L));
+            lists:map(
+              fun({K, V}) -> {(econf:enum([tag]))(K), (econf:binary())(V)};
+                 (A) ->
+                      (econf:enum([ejabberd_ctl,
+                                   ejabberd_web_admin,
+                                   ejabberd_xmlrpc,
+                                   mod_adhoc_api,
+                                   mod_cron,
+                                   mod_http_api]))(A)
+              end,
+              lists:flatten(L));
        (A) ->
-	    [(econf:enum([ejabberd_ctl,
+            [(econf:enum([ejabberd_ctl,
                           ejabberd_web_admin,
                           ejabberd_xmlrpc,
                           mod_adhoc_api,
@@ -367,26 +408,31 @@ validator(who) ->
     validator(#{access => econf:acl(), oauth => validator(oauth)}, []);
 validator(oauth) ->
     econf:and_then(
-      validator(#{access => econf:acl(),
-		  scope => econf:non_empty(
-			     econf:list_or_single(econf:binary()))},
-		[{required, [scope]}]),
+      validator(#{
+                  access => econf:acl(),
+                  scope => econf:non_empty(
+                             econf:list_or_single(econf:binary()))
+                 },
+                [{required, [scope]}]),
       fun(Os) ->
-	      {[Scopes], Rest} = proplists:split(Os, [scope]),
-	      {lists:flatten([S || {_, S} <- Scopes]), Rest}
+              {[Scopes], Rest} = proplists:split(Os, [scope]),
+              {lists:flatten([ S || {_, S} <- Scopes ]), Rest}
       end).
 
+
 validator() ->
     econf:map(
       econf:binary(),
       econf:and_then(
-	econf:options(
-	  #{from => validator(from),
-	    what => validator(what),
-	    who => validator(who)}),
-	fun(Os) ->
-		{proplists:get_value(from, Os, []),
-		 proplists:get_value(who, Os, none),
-		 proplists:get_value(what, Os, {none, none})}
-	end),
+        econf:options(
+          #{
+            from => validator(from),
+            what => validator(what),
+            who => validator(who)
+           }),
+        fun(Os) ->
+                {proplists:get_value(from, Os, []),
+                 proplists:get_value(who, Os, none),
+                 proplists:get_value(what, Os, {none, none})}
+        end),
       [unique]).

src/ejabberd_app.erl

@@ -38,65 +38,71 @@
 %%% Application API
 %%%
 
+
 start(normal, _Args) ->
     try
-	{T1, _} = statistics(wall_clock),
-	ejabberd_logger:start(),
-	write_pid_file(),
-	start_included_apps(),
-	misc:warn_unset_home(),
-	start_elixir_application(),
-	setup_if_elixir_conf_used(),
-	case ejabberd_config:load() of
-	    ok ->
-		ejabberd_mnesia:start(),
-		file_queue_init(),
-		maybe_add_nameservers(),
-		case ejabberd_sup:start_link() of
-		    {ok, SupPid} ->
-			ejabberd_system_monitor:start(),
-			register_elixir_config_hooks(),
-			ejabberd_cluster:wait_for_sync(infinity),
-			ejabberd_hooks:run(ejabberd_started, []),
-			ejabberd:check_apps(),
-			ejabberd_systemd:ready(),
-			maybe_start_exsync(),
-			{T2, _} = statistics(wall_clock),
-			?INFO_MSG("ejabberd ~ts is started in the node ~p in ~.2fs",
-				  [ejabberd_option:version(),
-				   node(), (T2-T1)/1000]),
-			maybe_print_elixir_version(),
-			?INFO_MSG("~ts",
-				  [erlang:system_info(system_version)]),
-			{ok, SupPid};
-		    Err ->
-			?CRITICAL_MSG("Failed to start ejabberd application: ~p", [Err]),
-			ejabberd:halt()
-		end;
-	    Err ->
-		?CRITICAL_MSG("Failed to start ejabberd application: ~ts",
-			      [ejabberd_config:format_error(Err)]),
-		ejabberd:halt()
-	end
-    catch throw:{?MODULE, Error} ->
-	    ?DEBUG("Failed to start ejabberd application: ~p", [Error]),
-	    ejabberd:halt()
+        {T1, _} = statistics(wall_clock),
+        ejabberd_logger:start(),
+        write_pid_file(),
+        start_included_apps(),
+        misc:warn_unset_home(),
+        start_elixir_application(),
+        setup_if_elixir_conf_used(),
+        case ejabberd_config:load() of
+            ok ->
+                ejabberd_mnesia:start(),
+                file_queue_init(),
+                maybe_add_nameservers(),
+                case ejabberd_sup:start_link() of
+                    {ok, SupPid} ->
+                        ejabberd_system_monitor:start(),
+                        register_elixir_config_hooks(),
+                        ejabberd_cluster:wait_for_sync(infinity),
+                        ejabberd_hooks:run(ejabberd_started, []),
+                        ejabberd:check_apps(),
+                        ejabberd_systemd:ready(),
+                        maybe_start_exsync(),
+                        {T2, _} = statistics(wall_clock),
+                        ?INFO_MSG("ejabberd ~ts is started in the node ~p in ~.2fs",
+                                  [ejabberd_option:version(),
+                                   node(),
+                                   (T2 - T1) / 1000]),
+                        maybe_print_elixir_version(),
+                        ?INFO_MSG("~ts",
+                                  [erlang:system_info(system_version)]),
+                        {ok, SupPid};
+                    Err ->
+                        ?CRITICAL_MSG("Failed to start ejabberd application: ~p", [Err]),
+                        ejabberd:halt()
+                end;
+            Err ->
+                ?CRITICAL_MSG("Failed to start ejabberd application: ~ts",
+                              [ejabberd_config:format_error(Err)]),
+                ejabberd:halt()
+        end
+    catch
+        throw:{?MODULE, Error} ->
+            ?DEBUG("Failed to start ejabberd application: ~p", [Error]),
+            ejabberd:halt()
     end;
 start(_, _) ->
     {error, badarg}.
 
+
 start_included_apps() ->
     {ok, Apps} = application:get_key(ejabberd, included_applications),
     lists:foreach(
-	fun(mnesia) ->
-	       ok;
-	   (lager) ->
-		ok;
-	   (os_mon)->
-	       ok;
-	   (App) ->
-	       application:ensure_all_started(App)
-	end, Apps).
+      fun(mnesia) ->
+              ok;
+         (lager) ->
+              ok;
+         (os_mon) ->
+              ok;
+         (App) ->
+              application:ensure_all_started(App)
+      end,
+      Apps).
+
 
 %% Prepare the application for termination.
 %% This function is called when an application is about to be stopped,
@@ -113,76 +119,88 @@ prep_stop(State) ->
     gen_mod:stop(),
     State.
 
+
 %% All the processes were killed when this function is called
 stop(_State) ->
     ?INFO_MSG("ejabberd ~ts is stopped in the node ~p",
-	      [ejabberd_option:version(), node()]),
+              [ejabberd_option:version(), node()]),
     delete_pid_file().
 
+
 %%%
 %%% Internal functions
 %%%
 
+
 %% If ejabberd is running on some Windows machine, get nameservers and add to Erlang
 maybe_add_nameservers() ->
     case os:type() of
-	{win32, _} -> add_windows_nameservers();
-	_ -> ok
+        {win32, _} -> add_windows_nameservers();
+        _ -> ok
     end.
 
+
 add_windows_nameservers() ->
     IPTs = win32_dns:get_nameservers(),
     ?INFO_MSG("Adding machine's DNS IPs to Erlang system:~n~p", [IPTs]),
     lists:foreach(fun(IPT) -> inet_db:add_ns(IPT) end, IPTs).
 
+
 %%%
 %%% PID file
 %%%
 
+
 write_pid_file() ->
     case ejabberd:get_pid_file() of
-	false ->
-	    ok;
-	PidFilename ->
-	    write_pid_file(os:getpid(), PidFilename)
+        false ->
+            ok;
+        PidFilename ->
+            write_pid_file(os:getpid(), PidFilename)
     end.
 
+
 write_pid_file(Pid, PidFilename) ->
     case file:write_file(PidFilename, io_lib:format("~ts~n", [Pid])) of
-	ok ->
-	    ok;
-	{error, Reason} = Err ->
-	    ?CRITICAL_MSG("Cannot write PID file ~ts: ~ts",
-			  [PidFilename, file:format_error(Reason)]),
-	    throw({?MODULE, Err})
+        ok ->
+            ok;
+        {error, Reason} = Err ->
+            ?CRITICAL_MSG("Cannot write PID file ~ts: ~ts",
+                          [PidFilename, file:format_error(Reason)]),
+            throw({?MODULE, Err})
     end.
 
+
 delete_pid_file() ->
     case ejabberd:get_pid_file() of
-	false ->
-	    ok;
-	PidFilename ->
-	    file:delete(PidFilename)
+        false ->
+            ok;
+        PidFilename ->
+            file:delete(PidFilename)
     end.
 
+
 file_queue_init() ->
     QueueDir = case ejabberd_option:queue_dir() of
-		   undefined ->
-		       MnesiaDir = mnesia:system_info(directory),
-		       filename:join(MnesiaDir, "queue");
-		   Path ->
-		       Path
-	       end,
+                   undefined ->
+                       MnesiaDir = mnesia:system_info(directory),
+                       filename:join(MnesiaDir, "queue");
+                   Path ->
+                       Path
+               end,
     case p1_queue:start(QueueDir) of
-	ok -> ok;
-	Err -> throw({?MODULE, Err})
+        ok -> ok;
+        Err -> throw({?MODULE, Err})
     end.
 
+
 %%%
 %%% Elixir
 %%%
 
 -ifdef(ELIXIR_ENABLED).
+
+
 is_using_elixir_config() ->
     Config = ejabberd_config:path(),
     try 'Elixir.Ejabberd.ConfigUtil':is_elixir_config(Config) of
@@ -191,36 +209,55 @@ is_using_elixir_config() ->
         _:_ -> false
     end.
 
+
 setup_if_elixir_conf_used() ->
-  case is_using_elixir_config() of
-    true -> 'Elixir.Ejabberd.Config.Store':start_link();
-    false -> ok
-  end.
+    case is_using_elixir_config() of
+        true -> 'Elixir.Ejabberd.Config.Store':start_link();
+        false -> ok
+    end.
+
 
 register_elixir_config_hooks() ->
-  case is_using_elixir_config() of
-    true -> 'Elixir.Ejabberd.Config':start_hooks();
-    false -> ok
-  end.
+    case is_using_elixir_config() of
+        true -> 'Elixir.Ejabberd.Config':start_hooks();
+        false -> ok
+    end.
+
 
 start_elixir_application() ->
     case application:ensure_started(elixir) of
-	ok -> ok;
-	{error, _Msg} -> ?ERROR_MSG("Elixir application not started.", [])
+        ok -> ok;
+        {error, _Msg} -> ?ERROR_MSG("Elixir application not started.", [])
     end.
 
+
 maybe_start_exsync() ->
     case os:getenv("RELIVE") of
         "true" -> rpc:call(node(), 'Elixir.ExSync.Application', start, []);
         _ -> ok
     end.
 
+
 maybe_print_elixir_version() ->
     ?INFO_MSG("Elixir ~ts", [maps:get(build, 'Elixir.System':build_info())]).
+
+
 -else.
+
+
 setup_if_elixir_conf_used() -> ok.
+
+
 register_elixir_config_hooks() -> ok.
+
+
 start_elixir_application() -> ok.
+
+
 maybe_start_exsync() -> ok.
+
+
 maybe_print_elixir_version() -> ok.
+
+
 -endif.

src/ejabberd_auth_anonymous.erl

@@ -31,159 +31,196 @@
 -protocol({xep, 175, '1.2', '1.1.0', "complete", ""}).
 
 -export([start/1,
-	 stop/1,
+         stop/1,
          use_cache/1,
-	 allow_anonymous/1,
-	 is_sasl_anonymous_enabled/1,
-	 is_login_anonymous_enabled/1,
-	 anonymous_user_exist/2,
-	 allow_multiple_connections/1,
-	 register_connection/3,
-	 unregister_connection/3
-	]).
+         allow_anonymous/1,
+         is_sasl_anonymous_enabled/1,
+         is_login_anonymous_enabled/1,
+         anonymous_user_exist/2,
+         allow_multiple_connections/1,
+         register_connection/3,
+         unregister_connection/3]).
 
--export([login/2, check_password/4, user_exists/2,
-	 get_users/2, count_users/2, store_type/1,
-	 plain_password_required/1]).
+-export([login/2,
+         check_password/4,
+         user_exists/2,
+         get_users/2,
+         count_users/2,
+         store_type/1,
+         plain_password_required/1]).
 
 -include("logger.hrl").
+
 -include_lib("xmpp/include/jid.hrl").
 
+
 start(Host) ->
-    ejabberd_hooks:add(sm_register_connection_hook, Host,
-		       ?MODULE, register_connection, 100),
-    ejabberd_hooks:add(sm_remove_connection_hook, Host,
-		       ?MODULE, unregister_connection, 100),
+    ejabberd_hooks:add(sm_register_connection_hook,
+                       Host,
+                       ?MODULE,
+                       register_connection,
+                       100),
+    ejabberd_hooks:add(sm_remove_connection_hook,
+                       Host,
+                       ?MODULE,
+                       unregister_connection,
+                       100),
     ok.
 
+
 stop(Host) ->
-    ejabberd_hooks:delete(sm_register_connection_hook, Host,
-			  ?MODULE, register_connection, 100),
-    ejabberd_hooks:delete(sm_remove_connection_hook, Host,
-			  ?MODULE, unregister_connection, 100).
+    ejabberd_hooks:delete(sm_register_connection_hook,
+                          Host,
+                          ?MODULE,
+                          register_connection,
+                          100),
+    ejabberd_hooks:delete(sm_remove_connection_hook,
+                          Host,
+                          ?MODULE,
+                          unregister_connection,
+                          100).
+
 
 use_cache(_) ->
     false.
 
+
 %% Return true if anonymous is allowed for host or false otherwise
 allow_anonymous(Host) ->
     lists:member(?MODULE, ejabberd_auth:auth_modules(Host)).
 
+
 %% Return true if anonymous mode is enabled and if anonymous protocol is SASL
 %% anonymous protocol can be: sasl_anon|login_anon|both
 is_sasl_anonymous_enabled(Host) ->
     case allow_anonymous(Host) of
-      false -> false;
-      true ->
-	  case anonymous_protocol(Host) of
-	    sasl_anon -> true;
-	    both -> true;
-	    _Other -> false
-	  end
+        false -> false;
+        true ->
+            case anonymous_protocol(Host) of
+                sasl_anon -> true;
+                both -> true;
+                _Other -> false
+            end
     end.
 
+
 %% Return true if anonymous login is enabled on the server
 %% anonymous login can be use using standard authentication method (i.e. with
 %% clients that do not support anonymous login)
 is_login_anonymous_enabled(Host) ->
     case allow_anonymous(Host) of
-      false -> false;
-      true ->
-	  case anonymous_protocol(Host) of
-	    login_anon -> true;
-	    both -> true;
-	    _Other -> false
-	  end
+        false -> false;
+        true ->
+            case anonymous_protocol(Host) of
+                login_anon -> true;
+                both -> true;
+                _Other -> false
+            end
     end.
 
+
 %% Return the anonymous protocol to use: sasl_anon|login_anon|both
 %% defaults to login_anon
 anonymous_protocol(Host) ->
     ejabberd_option:anonymous_protocol(Host).
 
+
 %% Return true if multiple connections have been allowed in the config file
 %% defaults to false
 allow_multiple_connections(Host) ->
     ejabberd_option:allow_multiple_connections(Host).
 
+
 anonymous_user_exist(User, Server) ->
     lists:any(
       fun({_LResource, Info}) ->
-	      proplists:get_value(auth_module, Info) == ?MODULE
-      end, ejabberd_sm:get_user_info(User, Server)).
+              proplists:get_value(auth_module, Info) == ?MODULE
+      end,
+      ejabberd_sm:get_user_info(User, Server)).
+
 
 %% Register connection
 -spec register_connection(ejabberd_sm:sid(), jid(), ejabberd_sm:info()) -> ok.
 register_connection(_SID,
-		    #jid{luser = LUser, lserver = LServer, lresource = LResource}, Info) ->
+                    #jid{luser = LUser, lserver = LServer, lresource = LResource},
+                    Info) ->
     case proplists:get_value(auth_module, Info) of
-	?MODULE ->
-	    % Register user only if we are first resource
-	    case ejabberd_sm:get_user_resources(LUser, LServer) of
-		[LResource] ->
-		    ejabberd_hooks:run(register_user, LServer, [LUser, LServer]);
-		_ ->
-		    ok
-	    end;
-	_ ->
-	    ok
+        ?MODULE ->
+            % Register user only if we are first resource
+            case ejabberd_sm:get_user_resources(LUser, LServer) of
+                [LResource] ->
+                    ejabberd_hooks:run(register_user, LServer, [LUser, LServer]);
+                _ ->
+                    ok
+            end;
+        _ ->
+            ok
     end.
 
+
 %% Remove an anonymous user from the anonymous users table
 -spec unregister_connection(ejabberd_sm:sid(), jid(), ejabberd_sm:info()) -> any().
 unregister_connection(_SID,
-		      #jid{luser = LUser, lserver = LServer}, Info) ->
+                      #jid{luser = LUser, lserver = LServer},
+                      Info) ->
     case proplists:get_value(auth_module, Info) of
-	?MODULE ->
-	    % Remove user data only if there is no more resources around
-	    case ejabberd_sm:get_user_resources(LUser, LServer) of
-		[] ->
-		    ejabberd_hooks:run(remove_user, LServer, [LUser, LServer]);
-		_ ->
-		    ok
-	    end;
-	_ ->
-	    ok
+        ?MODULE ->
+            % Remove user data only if there is no more resources around
+            case ejabberd_sm:get_user_resources(LUser, LServer) of
+                [] ->
+                    ejabberd_hooks:run(remove_user, LServer, [LUser, LServer]);
+                _ ->
+                    ok
+            end;
+        _ ->
+            ok
     end.
 
+
 %% ---------------------------------
 %% Specific anonymous auth functions
 %% ---------------------------------
 check_password(User, _AuthzId, Server, _Password) ->
     {nocache,
      case ejabberd_auth:user_exists_in_other_modules(?MODULE, User, Server) of
-	 %% If user exists in other module, reject anonnymous authentication
-	 true -> false;
-	 %% If we are not sure whether the user exists in other module, reject anon auth
-	 maybe_exists -> false;
-	 false -> login(User, Server)
+         %% If user exists in other module, reject anonnymous authentication
+         true -> false;
+         %% If we are not sure whether the user exists in other module, reject anon auth
+         maybe_exists -> false;
+         false -> login(User, Server)
      end}.
 
+
 login(User, Server) ->
     case is_login_anonymous_enabled(Server) of
-      false -> false;
-      true ->
-	  case anonymous_user_exist(User, Server) of
-	    %% Reject the login if an anonymous user with the same login
-	    %% is already logged and if multiple login has not been enable
-	    %% in the config file.
-	    true -> allow_multiple_connections(Server);
-	    %% Accept login and add user to the anonymous table
-	    false -> true
-	  end
+        false -> false;
+        true ->
+            case anonymous_user_exist(User, Server) of
+                %% Reject the login if an anonymous user with the same login
+                %% is already logged and if multiple login has not been enable
+                %% in the config file.
+                true -> allow_multiple_connections(Server);
+                %% Accept login and add user to the anonymous table
+                false -> true
+            end
     end.
 
+
 get_users(Server, _) ->
-    [{U, S} || {U, S, _R} <- ejabberd_sm:get_vh_session_list(Server)].
+    [ {U, S} || {U, S, _R} <- ejabberd_sm:get_vh_session_list(Server) ].
+
 
 count_users(Server, Opts) ->
     length(get_users(Server, Opts)).
 
+
 user_exists(User, Server) ->
     {nocache, anonymous_user_exist(User, Server)}.
 
+
 plain_password_required(_) ->
     false.
 
+
 store_type(_) ->
     external.

src/ejabberd_auth_external.erl

@@ -29,77 +29,99 @@
 
 -behaviour(ejabberd_auth).
 
--export([start/1, stop/1, reload/1, set_password/3, check_password/4,
-	 try_register/3, user_exists/2, remove_user/2,
-	 store_type/1, plain_password_required/1]).
+-export([start/1,
+         stop/1,
+         reload/1,
+         set_password/3,
+         check_password/4,
+         try_register/3,
+         user_exists/2,
+         remove_user/2,
+         store_type/1,
+         plain_password_required/1]).
 
 -include("logger.hrl").
 
+
 %%%----------------------------------------------------------------------
 %%% API
 %%%----------------------------------------------------------------------
 start(Host) ->
     extauth:start(Host).
 
+
 stop(Host) ->
     extauth:stop(Host).
 
+
 reload(Host) ->
     extauth:reload(Host).
 
+
 plain_password_required(_) -> true.
 
+
 store_type(_) -> external.
 
+
 check_password(User, AuthzId, Server, Password) ->
-    if AuthzId /= <<>> andalso AuthzId /= User ->
-	    {nocache, false};
-       true ->
-	    check_password_extauth(User, AuthzId, Server, Password)
+    if
+        AuthzId /= <<>> andalso AuthzId /= User ->
+            {nocache, false};
+        true ->
+            check_password_extauth(User, AuthzId, Server, Password)
     end.
 
+
 set_password(User, Server, Password) ->
     case extauth:set_password(User, Server, Password) of
-	Res when is_boolean(Res) -> {cache, {ok, Password}};
-	{error, Reason} -> failure(User, Server, set_password, Reason)
+        Res when is_boolean(Res) -> {cache, {ok, Password}};
+        {error, Reason} -> failure(User, Server, set_password, Reason)
     end.
 
+
 try_register(User, Server, Password) ->
     case extauth:try_register(User, Server, Password) of
-	true -> {cache, {ok, Password}};
-	false -> {cache, {error, not_allowed}};
-	{error, Reason} -> failure(User, Server, try_register, Reason)
+        true -> {cache, {ok, Password}};
+        false -> {cache, {error, not_allowed}};
+        {error, Reason} -> failure(User, Server, try_register, Reason)
     end.
 
+
 user_exists(User, Server) ->
     case extauth:user_exists(User, Server) of
-	Res when is_boolean(Res) -> {cache, Res};
-	{error, Reason} -> failure(User, Server, user_exists, Reason)
+        Res when is_boolean(Res) -> {cache, Res};
+        {error, Reason} -> failure(User, Server, user_exists, Reason)
     end.
 
+
 remove_user(User, Server) ->
     case extauth:remove_user(User, Server) of
-	false -> {error, not_allowed};
-	true -> ok;
-	{error, Reason} ->
-	    {_, Err} = failure(User, Server, remove_user, Reason),
-	    Err
+        false -> {error, not_allowed};
+        true -> ok;
+        {error, Reason} ->
+            {_, Err} = failure(User, Server, remove_user, Reason),
+            Err
     end.
 
+
 check_password_extauth(User, _AuthzId, Server, Password) ->
-    if Password /= <<"">> ->
-	    case extauth:check_password(User, Server, Password) of
-		Res when is_boolean(Res) -> {cache, Res};
-		{error, Reason} ->
-		    {Tag, _} = failure(User, Server, check_password, Reason),
-		    {Tag, false}
-	    end;
-       true ->
-	    {nocache, false}
+    if
+        Password /= <<"">> ->
+            case extauth:check_password(User, Server, Password) of
+                Res when is_boolean(Res) -> {cache, Res};
+                {error, Reason} ->
+                    {Tag, _} = failure(User, Server, check_password, Reason),
+                    {Tag, false}
+            end;
+        true ->
+            {nocache, false}
     end.
 
+
 -spec failure(binary(), binary(), atom(), any()) -> {nocache, {error, db_failure}}.
 failure(User, Server, Fun, Reason) ->
     ?ERROR_MSG("External authentication program failed when calling "
-	       "'~ts' for ~ts@~ts: ~p", [Fun, User, Server, Reason]),
+               "'~ts' for ~ts@~ts: ~p",
+               [Fun, User, Server, Reason]),
     {nocache, {error, db_failure}}.

src/ejabberd_auth_jwt.erl

@@ -29,16 +29,21 @@
 
 -behaviour(ejabberd_auth).
 
--export([start/1, stop/1, check_password/4,
-	 store_type/1, plain_password_required/1,
-         user_exists/2, use_cache/1
-        ]).
+-export([start/1,
+         stop/1,
+         check_password/4,
+         store_type/1,
+         plain_password_required/1,
+         user_exists/2,
+         use_cache/1]).
 %% 'ejabberd_hooks' callback:
 -export([check_decoded_jwt/5]).
 
 -include_lib("xmpp/include/xmpp.hrl").
+
 -include("logger.hrl").
 
+
 %%%----------------------------------------------------------------------
 %%% API
 %%%----------------------------------------------------------------------
@@ -50,32 +55,40 @@ start(Host) ->
     %% callback function.
     ejabberd_hooks:add(check_decoded_jwt, Host, ?MODULE, check_decoded_jwt, 100),
     case ejabberd_option:jwt_key(Host) of
-	undefined ->
-	    ?ERROR_MSG("Option jwt_key is not configured for ~ts: "
-		       "JWT authentication won't work", [Host]);
-	_ ->
-	    ok
+        undefined ->
+            ?ERROR_MSG("Option jwt_key is not configured for ~ts: "
+                       "JWT authentication won't work",
+                       [Host]);
+        _ ->
+            ok
     end.
 
+
 stop(Host) ->
     ejabberd_hooks:delete(check_decoded_jwt, Host, ?MODULE, check_decoded_jwt, 100).
 
+
 plain_password_required(_Host) -> true.
 
+
 store_type(_Host) -> external.
 
+
 -spec check_password(binary(), binary(), binary(), binary()) -> {ets_cache:tag(), boolean() | {stop, boolean()}}.
 check_password(User, AuthzId, Server, Token) ->
     %% MREMOND: Should we move the AuthzId check at a higher level in
     %%          the call stack?
-    if AuthzId /= <<>> andalso AuthzId /= User ->
+    if
+        AuthzId /= <<>> andalso AuthzId /= User ->
             {nocache, false};
-       true ->
-            if Token == <<"">> -> {nocache, false};
-               true ->
+        true ->
+            if
+                Token == <<"">> -> {nocache, false};
+                true ->
                     Res = check_jwt_token(User, Server, Token),
                     Rule = ejabberd_option:jwt_auth_only_rule(Server),
-                    case acl:match_rule(Server, Rule,
+                    case acl:match_rule(Server,
+                                        Rule,
                                         jid:make(User, Server, <<"">>)) of
                         deny ->
                             {nocache, Res};
@@ -85,18 +98,21 @@ check_password(User, AuthzId, Server, Token) ->
             end
     end.
 
+
 user_exists(User, Host) ->
-  %% Checking that the user has an active session
-  %% If the session was negociated by the JWT auth method then we define that the user exists
-  %% Any other cases will return that the user doesn't exist
-  {nocache, case ejabberd_sm:get_user_info(User, Host) of
-              [{_, Info}] -> proplists:get_value(auth_module, Info) == ejabberd_auth_jwt;
-              _ -> false
-            end}.
+    %% Checking that the user has an active session
+    %% If the session was negociated by the JWT auth method then we define that the user exists
+    %% Any other cases will return that the user doesn't exist
+    {nocache, case ejabberd_sm:get_user_info(User, Host) of
+                  [{_, Info}] -> proplists:get_value(auth_module, Info) == ejabberd_auth_jwt;
+                  _ -> false
+              end}.
+
 
 use_cache(_) ->
     false.
 
+
 %%%----------------------------------------------------------------------
 %%% 'ejabberd_hooks' callback
 %%%----------------------------------------------------------------------
@@ -107,15 +123,17 @@ check_decoded_jwt(true, Fields, _Signature, Server, User) ->
             try
                 JID = jid:decode(SJid),
                 JID#jid.luser == User andalso JID#jid.lserver == Server
-            catch error:{bad_jid, _} ->
-                false
+            catch
+                error:{bad_jid, _} ->
+                    false
             end;
-        _ -> % error | {ok, _UnknownType}
+        _ ->  % error | {ok, _UnknownType}
             false
     end;
 check_decoded_jwt(Acc, _, _, _, _) ->
     Acc.
 
+
 %%%----------------------------------------------------------------------
 %%% Internal functions
 %%%----------------------------------------------------------------------
@@ -125,19 +143,18 @@ check_jwt_token(User, Server, Token) ->
         {true, {jose_jwt, Fields}, Signature} ->
             Now = erlang:system_time(second),
             ?DEBUG("jwt verify at system timestamp ~p: ~p - ~p~n", [Now, Fields, Signature]),
-	    case maps:find(<<"exp">>, Fields) of
+            case maps:find(<<"exp">>, Fields) of
                 error ->
-		    %% No expiry in token => We consider token invalid:
-		    false;
+                    %% No expiry in token => We consider token invalid:
+                    false;
                 {ok, Exp} ->
                     if
                         Exp > Now ->
                             ejabberd_hooks:run_fold(
-                                check_decoded_jwt,
-                                Server,
-                                true,
-                                [Fields, Signature, Server, User]
-                            );
+                              check_decoded_jwt,
+                              Server,
+                              true,
+                              [Fields, Signature, Server, User]);
                         true ->
                             %% return false, if token has expired
                             false

src/ejabberd_auth_ldap.erl

@@ -31,27 +31,40 @@
 -behaviour(ejabberd_auth).
 
 %% gen_server callbacks
--export([init/1, handle_info/2, handle_call/3,
-	 handle_cast/2, terminate/2, code_change/3]).
+-export([init/1,
+         handle_info/2,
+         handle_call/3,
+         handle_cast/2,
+         terminate/2,
+         code_change/3]).
 
--export([start/1, stop/1, start_link/1, set_password/3,
-	 check_password/4, user_exists/2,
-	 get_users/2, count_users/2,
-	 store_type/1, plain_password_required/1,
-	 reload/1]).
+-export([start/1,
+         stop/1,
+         start_link/1,
+         set_password/3,
+         check_password/4,
+         user_exists/2,
+         get_users/2,
+         count_users/2,
+         store_type/1,
+         plain_password_required/1,
+         reload/1]).
 
 -include("logger.hrl").
 
 -include("eldap.hrl").
 
+%%
+%% @efmt:off
+%% @indent-begin
 -record(state,
-	{host = <<"">>          :: binary(),
+        {host = <<"">>          :: binary(),
          eldap_id = <<"">>      :: binary(),
          bind_eldap_id = <<"">> :: binary(),
          servers = []           :: [binary()],
          backups = []           :: [binary()],
          port = ?LDAP_PORT      :: inet:port_number(),
-	 tls_options = []       :: list(),
+         tls_options = []       :: list(),
          dn = <<"">>            :: binary(),
          password = <<"">>      :: binary(),
          base = <<"">>          :: binary(),
@@ -61,118 +74,152 @@
          deref_aliases = never  :: never | searching | finding | always,
          dn_filter              :: binary() | undefined,
          dn_filter_attrs = []   :: [binary()]}).
+%% @indent-end
+%% @efmt:on
+           %%
+
 
 handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 code_change(_OldVsn, State, _Extra) -> {ok, State}.
 
+
 handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 -define(LDAP_SEARCH_TIMEOUT, 5).
 
 %%%----------------------------------------------------------------------
 %%% API
 %%%----------------------------------------------------------------------
 
+
 start(Host) ->
     Proc = gen_mod:get_module_proc(Host, ?MODULE),
-    ChildSpec = {Proc, {?MODULE, start_link, [Host]},
-		 transient, 1000, worker, [?MODULE]},
+    ChildSpec = {Proc,
+                 {?MODULE, start_link, [Host]},
+                 transient,
+                 1000,
+                 worker,
+                 [?MODULE]},
     supervisor:start_child(ejabberd_backend_sup, ChildSpec).
 
+
 stop(Host) ->
     Proc = gen_mod:get_module_proc(Host, ?MODULE),
     case supervisor:terminate_child(ejabberd_backend_sup, Proc) of
-	ok -> supervisor:delete_child(ejabberd_backend_sup, Proc);
-	Err -> Err
+        ok -> supervisor:delete_child(ejabberd_backend_sup, Proc);
+        Err -> Err
     end.
 
+
 start_link(Host) ->
     Proc = gen_mod:get_module_proc(Host, ?MODULE),
     gen_server:start_link({local, Proc}, ?MODULE, Host, []).
 
+
 terminate(_Reason, _State) -> ok.
 
+
 init(Host) ->
     process_flag(trap_exit, true),
     State = parse_options(Host),
     eldap_pool:start_link(State#state.eldap_id,
-			  State#state.servers, State#state.backups,
-			  State#state.port, State#state.dn,
-			  State#state.password, State#state.tls_options),
+                          State#state.servers,
+                          State#state.backups,
+                          State#state.port,
+                          State#state.dn,
+                          State#state.password,
+                          State#state.tls_options),
     eldap_pool:start_link(State#state.bind_eldap_id,
-			  State#state.servers, State#state.backups,
-			  State#state.port, State#state.dn,
-			  State#state.password, State#state.tls_options),
+                          State#state.servers,
+                          State#state.backups,
+                          State#state.port,
+                          State#state.dn,
+                          State#state.password,
+                          State#state.tls_options),
     {ok, State}.
 
+
 reload(Host) ->
     stop(Host),
     start(Host).
 
+
 plain_password_required(_) -> true.
 
+
 store_type(_) -> external.
 
+
 check_password(User, AuthzId, Server, Password) ->
-    if AuthzId /= <<>> andalso AuthzId /= User ->
-	    {nocache, false};
-       Password == <<"">> ->
-	    {nocache, false};
-       true ->
-	    case catch check_password_ldap(User, Server, Password) of
-		{'EXIT', _} -> {nocache, false};
-		Result -> {cache, Result}
-	    end
+    if
+        AuthzId /= <<>> andalso AuthzId /= User ->
+            {nocache, false};
+        Password == <<"">> ->
+            {nocache, false};
+        true ->
+            case catch check_password_ldap(User, Server, Password) of
+                {'EXIT', _} -> {nocache, false};
+                Result -> {cache, Result}
+            end
     end.
 
+
 set_password(User, Server, Password) ->
     {ok, State} = eldap_utils:get_state(Server, ?MODULE),
     case find_user_dn(User, State) of
-      false -> {cache, {error, db_failure}};
-      DN ->
-	    case eldap_pool:modify_passwd(State#state.eldap_id, DN,
-					  Password) of
-		ok -> {cache, {ok, Password}};
-		_Err -> {nocache, {error, db_failure}}
-	    end
+        false -> {cache, {error, db_failure}};
+        DN ->
+            case eldap_pool:modify_passwd(State#state.eldap_id,
+                                          DN,
+                                          Password) of
+                ok -> {cache, {ok, Password}};
+                _Err -> {nocache, {error, db_failure}}
+            end
     end.
 
+
 get_users(Server, []) ->
     case catch get_users_ldap(Server) of
-      {'EXIT', _} -> [];
-      Result -> Result
+        {'EXIT', _} -> [];
+        Result -> Result
     end.
 
+
 count_users(Server, Opts) ->
     length(get_users(Server, Opts)).
 
+
 user_exists(User, Server) ->
     case catch user_exists_ldap(User, Server) of
-	{'EXIT', _Error} -> {nocache, {error, db_failure}};
-	Result -> {cache, Result}
+        {'EXIT', _Error} -> {nocache, {error, db_failure}};
+        Result -> {cache, Result}
     end.
 
+
 %%%----------------------------------------------------------------------
 %%% Internal functions
 %%%----------------------------------------------------------------------
 check_password_ldap(User, Server, Password) ->
     {ok, State} = eldap_utils:get_state(Server, ?MODULE),
     case find_user_dn(User, State) of
-      false -> false;
-      DN ->
-	  case eldap_pool:bind(State#state.bind_eldap_id, DN,
-			       Password)
-	      of
-	    ok -> true;
-	    _ -> false
-	  end
+        false -> false;
+        DN ->
+            case eldap_pool:bind(State#state.bind_eldap_id,
+                                 DN,
+                                 Password) of
+                ok -> true;
+                _ -> false
+            end
     end.
 
+
 get_users_ldap(Server) ->
     {ok, State} = eldap_utils:get_state(Server, ?MODULE),
     UIDs = State#state.uids,
@@ -180,55 +227,54 @@ get_users_ldap(Server) ->
     Server = State#state.host,
     ResAttrs = result_attrs(State),
     case eldap_filter:parse(State#state.sfilter) of
-      {ok, EldapFilter} ->
-	  case eldap_pool:search(Eldap_ID,
-				 [{base, State#state.base},
-				  {filter, EldapFilter},
-				  {timeout, ?LDAP_SEARCH_TIMEOUT},
-				  {deref_aliases, State#state.deref_aliases},
-				  {attributes, ResAttrs}])
-	      of
-	    #eldap_search_result{entries = Entries} ->
-		lists:flatmap(fun (#eldap_entry{attributes = Attrs,
-						object_name = DN}) ->
-				      case is_valid_dn(DN, Attrs, State) of
-					false -> [];
-					_ ->
-					    case
-					      eldap_utils:find_ldap_attrs(UIDs,
-									  Attrs)
-						of
-					      <<"">> -> [];
-					      {User, UIDFormat} ->
-						  case
-						    eldap_utils:get_user_part(User,
-									      UIDFormat)
-						      of
-						    {ok, U} ->
-							case jid:nodeprep(U) of
-							  error -> [];
-							  LU ->
-							      [{LU,
-								jid:nameprep(Server)}]
-							end;
-						    _ -> []
-						  end
-					    end
-				      end
-			      end,
-			      Entries);
-	    _ -> []
-	  end;
-      _ -> []
+        {ok, EldapFilter} ->
+            case eldap_pool:search(Eldap_ID,
+                                   [{base, State#state.base},
+                                    {filter, EldapFilter},
+                                    {timeout, ?LDAP_SEARCH_TIMEOUT},
+                                    {deref_aliases, State#state.deref_aliases},
+                                    {attributes, ResAttrs}]) of
+                #eldap_search_result{entries = Entries} ->
+                    lists:flatmap(fun(#eldap_entry{
+                                        attributes = Attrs,
+                                        object_name = DN
+                                       }) ->
+                                          case is_valid_dn(DN, Attrs, State) of
+                                              false -> [];
+                                              _ ->
+                                                  case eldap_utils:find_ldap_attrs(UIDs,
+                                                                                   Attrs) of
+                                                      <<"">> -> [];
+                                                      {User, UIDFormat} ->
+                                                          case eldap_utils:get_user_part(User,
+                                                                                         UIDFormat) of
+                                                              {ok, U} ->
+                                                                  case jid:nodeprep(U) of
+                                                                      error -> [];
+                                                                      LU ->
+                                                                          [{LU,
+                                                                            jid:nameprep(Server)}]
+                                                                  end;
+                                                              _ -> []
+                                                          end
+                                                  end
+                                          end
+                                  end,
+                                  Entries);
+                _ -> []
+            end;
+        _ -> []
     end.
 
+
 user_exists_ldap(User, Server) ->
     {ok, State} = eldap_utils:get_state(Server, ?MODULE),
     case find_user_dn(User, State) of
-      false -> false;
-      _DN -> true
+        false -> false;
+        _DN -> true
     end.
 
+
 handle_call(get_state, _From, State) ->
     {reply, {ok, State}, State};
 handle_call(stop, _From, State) ->
@@ -237,68 +283,75 @@ handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 find_user_dn(User, State) ->
     ResAttrs = result_attrs(State),
     case eldap_filter:parse(State#state.ufilter,
-			    [{<<"%u">>, User}])
-	of
-      {ok, Filter} ->
-	  case eldap_pool:search(State#state.eldap_id,
-				 [{base, State#state.base}, {filter, Filter},
-				  {deref_aliases, State#state.deref_aliases},
-				  {attributes, ResAttrs}])
-	      of
-	    #eldap_search_result{entries =
-				     [#eldap_entry{attributes = Attrs,
-						   object_name = DN}
-				      | _]} ->
-		is_valid_dn(DN, Attrs, State);
-	    _ -> false
-	  end;
-      _ -> false
+                            [{<<"%u">>, User}]) of
+        {ok, Filter} ->
+            case eldap_pool:search(State#state.eldap_id,
+                                   [{base, State#state.base},
+                                    {filter, Filter},
+                                    {deref_aliases, State#state.deref_aliases},
+                                    {attributes, ResAttrs}]) of
+                #eldap_search_result{
+                  entries =
+                      [#eldap_entry{
+                         attributes = Attrs,
+                         object_name = DN
+                        } | _]
+                 } ->
+                    is_valid_dn(DN, Attrs, State);
+                _ -> false
+            end;
+        _ -> false
     end.
 
+
 %% Check that the DN is valid, based on the dn filter
 is_valid_dn(DN, _, #state{dn_filter = undefined}) -> DN;
 is_valid_dn(DN, Attrs, State) ->
     DNAttrs = State#state.dn_filter_attrs,
     UIDs = State#state.uids,
-    Values = [{<<"%s">>,
-	       eldap_utils:get_ldap_attr(Attr, Attrs), 1}
-	      || Attr <- DNAttrs],
+    Values = [ {<<"%s">>,
+                eldap_utils:get_ldap_attr(Attr, Attrs),
+                1}
+               || Attr <- DNAttrs ],
     SubstValues = case eldap_utils:find_ldap_attrs(UIDs,
-						   Attrs)
-		      of
-		    <<"">> -> Values;
-		    {S, UAF} ->
-			case eldap_utils:get_user_part(S, UAF) of
-			  {ok, U} -> [{<<"%u">>, U} | Values];
-			  _ -> Values
-			end
-		  end
-		    ++ [{<<"%d">>, State#state.host}, {<<"%D">>, DN}],
+                                                   Attrs) of
+                      <<"">> -> Values;
+                      {S, UAF} ->
+                          case eldap_utils:get_user_part(S, UAF) of
+                              {ok, U} -> [{<<"%u">>, U} | Values];
+                              _ -> Values
+                          end
+                  end ++
+        [{<<"%d">>, State#state.host}, {<<"%D">>, DN}],
     case eldap_filter:parse(State#state.dn_filter,
-			    SubstValues)
-	of
-      {ok, EldapFilter} ->
-	  case eldap_pool:search(State#state.eldap_id,
-				 [{base, State#state.base},
-				  {filter, EldapFilter},
-				  {deref_aliases, State#state.deref_aliases},
-				  {attributes, [<<"dn">>]}])
-	      of
-	    #eldap_search_result{entries = [_ | _]} -> DN;
-	    _ -> false
-	  end;
-      _ -> false
+                            SubstValues) of
+        {ok, EldapFilter} ->
+            case eldap_pool:search(State#state.eldap_id,
+                                   [{base, State#state.base},
+                                    {filter, EldapFilter},
+                                    {deref_aliases, State#state.deref_aliases},
+                                    {attributes, [<<"dn">>]}]) of
+                #eldap_search_result{entries = [_ | _]} -> DN;
+                _ -> false
+            end;
+        _ -> false
     end.
 
-result_attrs(#state{uids = UIDs,
-		    dn_filter_attrs = DNFilterAttrs}) ->
-    lists:foldl(fun ({UID}, Acc) -> [UID | Acc];
-		    ({UID, _}, Acc) -> [UID | Acc]
-		end,
-		DNFilterAttrs, UIDs).
+
+result_attrs(#state{
+               uids = UIDs,
+               dn_filter_attrs = DNFilterAttrs
+              }) ->
+    lists:foldl(fun({UID}, Acc) -> [UID | Acc];
+                   ({UID, _}, Acc) -> [UID | Acc]
+                end,
+                DNFilterAttrs,
+                UIDs).
+
 
 %%%----------------------------------------------------------------------
 %%% Auxiliary functions
@@ -310,25 +363,30 @@ parse_options(Host) ->
                       gen_mod:get_module_proc(Host, bind_ejabberd_auth_ldap)),
     UIDsTemp = ejabberd_option:ldap_uids(Host),
     UIDs = eldap_utils:uids_domain_subst(Host, UIDsTemp),
-    SubFilter =	eldap_utils:generate_subfilter(UIDs),
+    SubFilter = eldap_utils:generate_subfilter(UIDs),
     UserFilter = case ejabberd_option:ldap_filter(Host) of
                      <<"">> ->
-			 SubFilter;
+                         SubFilter;
                      F ->
                          <<"(&", SubFilter/binary, F/binary, ")">>
                  end,
     SearchFilter = eldap_filter:do_sub(UserFilter, [{<<"%u">>, <<"*">>}]),
     {DNFilter, DNFilterAttrs} = ejabberd_option:ldap_dn_filter(Host),
-    #state{host = Host, eldap_id = Eldap_ID,
-           bind_eldap_id = Bind_Eldap_ID,
-           servers = Cfg#eldap_config.servers,
-	   backups = Cfg#eldap_config.backups,
-           port = Cfg#eldap_config.port,
-	   tls_options = Cfg#eldap_config.tls_options,
-	   dn = Cfg#eldap_config.dn,
-           password = Cfg#eldap_config.password,
-           base = Cfg#eldap_config.base,
-           deref_aliases = Cfg#eldap_config.deref_aliases,
-	   uids = UIDs, ufilter = UserFilter,
-	   sfilter = SearchFilter,
-	   dn_filter = DNFilter, dn_filter_attrs = DNFilterAttrs}.
+    #state{
+      host = Host,
+      eldap_id = Eldap_ID,
+      bind_eldap_id = Bind_Eldap_ID,
+      servers = Cfg#eldap_config.servers,
+      backups = Cfg#eldap_config.backups,
+      port = Cfg#eldap_config.port,
+      tls_options = Cfg#eldap_config.tls_options,
+      dn = Cfg#eldap_config.dn,
+      password = Cfg#eldap_config.password,
+      base = Cfg#eldap_config.base,
+      deref_aliases = Cfg#eldap_config.deref_aliases,
+      uids = UIDs,
+      ufilter = UserFilter,
+      sfilter = SearchFilter,
+      dn_filter = DNFilter,
+      dn_filter_attrs = DNFilterAttrs
+     }.

src/ejabberd_auth_mnesia.erl

@@ -29,19 +29,34 @@
 
 -behaviour(ejabberd_auth).
 
--export([start/1, stop/1, set_password_multiple/3, try_register_multiple/3,
-	 get_users/2, init_db/0,
-	 count_users/2, get_password/2,
-	 remove_user/2, store_type/1, import/2,
-	 plain_password_required/1, use_cache/1, drop_password_type/2, set_password_instance/3]).
+-export([start/1,
+         stop/1,
+         set_password_multiple/3,
+         try_register_multiple/3,
+         get_users/2,
+         init_db/0,
+         count_users/2,
+         get_password/2,
+         remove_user/2,
+         store_type/1,
+         import/2,
+         plain_password_required/1,
+         use_cache/1,
+         drop_password_type/2,
+         set_password_instance/3]).
 -export([need_transform/1, transform/1]).
 
 -include("logger.hrl").
+
 -include_lib("xmpp/include/scram.hrl").
+
 -include("ejabberd_auth.hrl").
 
--record(reg_users_counter, {vhost = <<"">> :: binary(),
-                            count = 0 :: integer() | '$1'}).
+-record(reg_users_counter, {
+          vhost = <<"">> :: binary(),
+          count = 0 :: integer() | '$1'
+         }).
+
 
 %%%----------------------------------------------------------------------
 %%% API
@@ -51,214 +66,251 @@ start(Host) ->
     update_reg_users_counter_table(Host),
     ok.
 
+
 stop(_Host) ->
     ok.
 
+
 init_db() ->
-    ejabberd_mnesia:create(?MODULE, passwd,
-			[{disc_only_copies, [node()]},
-			 {attributes, record_info(fields, passwd)}]),
-    ejabberd_mnesia:create(?MODULE, reg_users_counter,
-			[{ram_copies, [node()]},
-			 {attributes, record_info(fields, reg_users_counter)}]).
+    ejabberd_mnesia:create(?MODULE,
+                           passwd,
+                           [{disc_only_copies, [node()]},
+                            {attributes, record_info(fields, passwd)}]),
+    ejabberd_mnesia:create(?MODULE,
+                           reg_users_counter,
+                           [{ram_copies, [node()]},
+                            {attributes, record_info(fields, reg_users_counter)}]).
+
 
 update_reg_users_counter_table(Server) ->
     Set = get_users(Server, []),
     Size = length(Set),
     LServer = jid:nameprep(Server),
-    F = fun () ->
-		mnesia:write(#reg_users_counter{vhost = LServer,
-						count = Size})
-	end,
+    F = fun() ->
+                mnesia:write(#reg_users_counter{
+                               vhost = LServer,
+                               count = Size
+                              })
+        end,
     mnesia:sync_dirty(F).
 
+
 use_cache(Host) ->
     case mnesia:table_info(passwd, storage_type) of
-	disc_only_copies ->
-	    ejabberd_option:auth_use_cache(Host);
-	_ ->
-	    false
+        disc_only_copies ->
+            ejabberd_option:auth_use_cache(Host);
+        _ ->
+            false
     end.
 
+
 plain_password_required(Server) ->
     store_type(Server) == scram.
 
+
 store_type(Server) ->
     ejabberd_auth:password_format(Server).
 
+
 set_password_multiple(User, Server, Passwords) ->
     F = fun() ->
-	lists:foreach(
-	    fun(#scram{hash = Hash} = Password) ->
-		mnesia:write(#passwd{us = {User, Server, Hash}, password = Password});
-	       (Plain) ->
-		   mnesia:write(#passwd{us = {User, Server, plain}, password = Plain})
-	    end, Passwords)
-	end,
+                lists:foreach(
+                  fun(#scram{hash = Hash} = Password) ->
+                          mnesia:write(#passwd{us = {User, Server, Hash}, password = Password});
+                     (Plain) ->
+                          mnesia:write(#passwd{us = {User, Server, plain}, password = Plain})
+                  end,
+                  Passwords)
+        end,
     case mnesia:transaction(F) of
-	{atomic, ok} ->
-	    {cache, {ok, Passwords}};
-	{aborted, Reason} ->
-	    ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
-	    {nocache, {error, db_failure}}
+        {atomic, ok} ->
+            {cache, {ok, Passwords}};
+        {aborted, Reason} ->
+            ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
+            {nocache, {error, db_failure}}
     end.
 
+
 set_password_instance(User, Server, Password) ->
     F = fun() ->
-	case Password of
-	    #scram{hash = Hash} = Password ->
-		mnesia:write(#passwd{us = {User, Server, Hash}, password = Password});
-	    Plain ->
-		mnesia:write(#passwd{us = {User, Server, plain}, password = Plain})
-	end
-	end,
+                case Password of
+                    #scram{hash = Hash} = Password ->
+                        mnesia:write(#passwd{us = {User, Server, Hash}, password = Password});
+                    Plain ->
+                        mnesia:write(#passwd{us = {User, Server, plain}, password = Plain})
+                end
+        end,
     case mnesia:transaction(F) of
-	{atomic, ok} ->
-	    ok;
-	{aborted, Reason} ->
-	    ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
-	    {error, db_failure}
+        {atomic, ok} ->
+            ok;
+        {aborted, Reason} ->
+            ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
+            {error, db_failure}
     end.
 
+
 try_register_multiple(User, Server, Passwords) ->
     F = fun() ->
-	case mnesia:select(passwd, [{{'_', {'$1', '$2', '_'}, '$3'},
-				     [{'==', '$1', User},
-				      {'==', '$2', Server}],
-				     ['$3']}]) of
-	    [] ->
-		lists:foreach(
-		    fun(#scram{hash = Hash} = Password) ->
-			mnesia:write(#passwd{us = {User, Server, Hash}, password = Password});
-		       (Plain) ->
-			   mnesia:write(#passwd{us = {User, Server, plain}, password = Plain})
-		    end, Passwords),
-		mnesia:dirty_update_counter(reg_users_counter, Server, 1),
-		{ok, Passwords};
-	    [_] ->
-		{error, exists}
-	end
-	end,
+                case mnesia:select(passwd,
+                                   [{{'_', {'$1', '$2', '_'}, '$3'},
+                                     [{'==', '$1', User},
+                                      {'==', '$2', Server}],
+                                     ['$3']}]) of
+                    [] ->
+                        lists:foreach(
+                          fun(#scram{hash = Hash} = Password) ->
+                                  mnesia:write(#passwd{us = {User, Server, Hash}, password = Password});
+                             (Plain) ->
+                                  mnesia:write(#passwd{us = {User, Server, plain}, password = Plain})
+                          end,
+                          Passwords),
+                        mnesia:dirty_update_counter(reg_users_counter, Server, 1),
+                        {ok, Passwords};
+                    [_] ->
+                        {error, exists}
+                end
+        end,
     case mnesia:transaction(F) of
-	{atomic, Res} ->
-	    {cache, Res};
-	{aborted, Reason} ->
-	    ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
-	    {nocache, {error, db_failure}}
+        {atomic, Res} ->
+            {cache, Res};
+        {aborted, Reason} ->
+            ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
+            {nocache, {error, db_failure}}
     end.
 
+
 get_users(Server, []) ->
     Users = mnesia:dirty_select(passwd,
-			[{#passwd{us = '$1', _ = '_'},
-			  [{'==', {element, 2, '$1'}, Server}], ['$1']}]),
-    misc:lists_uniq([{U, S} || {U, S, _} <- Users]);
+                                [{#passwd{us = '$1', _ = '_'},
+                                  [{'==', {element, 2, '$1'}, Server}],
+                                  ['$1']}]),
+    misc:lists_uniq([ {U, S} || {U, S, _} <- Users ]);
 get_users(Server, [{from, Start}, {to, End}])
   when is_integer(Start) and is_integer(End) ->
     get_users(Server, [{limit, End - Start + 1}, {offset, Start}]);
 get_users(Server, [{limit, Limit}, {offset, Offset}])
   when is_integer(Limit) and is_integer(Offset) ->
     case get_users(Server, []) of
-	[] ->
-	    [];
-	Users ->
-	    Set = lists:keysort(1, Users),
-	    L = length(Set),
-	    Start = if Offset < 1 -> 1;
-		       Offset > L -> L;
-		       true -> Offset
-		    end,
-	    lists:sublist(Set, Start, Limit)
+        [] ->
+            [];
+        Users ->
+            Set = lists:keysort(1, Users),
+            L = length(Set),
+            Start = if
+                        Offset < 1 -> 1;
+                        Offset > L -> L;
+                        true -> Offset
+                    end,
+            lists:sublist(Set, Start, Limit)
     end;
 get_users(Server, [{prefix, Prefix}]) when is_binary(Prefix) ->
-    Set = [{U, S} || {U, S} <- get_users(Server, []), str:prefix(Prefix, U)],
+    Set = [ {U, S} || {U, S} <- get_users(Server, []), str:prefix(Prefix, U) ],
     lists:keysort(1, Set);
 get_users(Server, [{prefix, Prefix}, {from, Start}, {to, End}])
   when is_binary(Prefix) and is_integer(Start) and is_integer(End) ->
-    get_users(Server, [{prefix, Prefix}, {limit, End - Start + 1},
-		       {offset, Start}]);
+    get_users(Server,
+              [{prefix, Prefix},
+               {limit, End - Start + 1},
+               {offset, Start}]);
 get_users(Server, [{prefix, Prefix}, {limit, Limit}, {offset, Offset}])
   when is_binary(Prefix) and is_integer(Limit) and is_integer(Offset) ->
-    case [{U, S} || {U, S} <- get_users(Server, []), str:prefix(Prefix, U)] of
-	[] ->
-	    [];
-	Users ->
-	    Set = lists:keysort(1, Users),
-	    L = length(Set),
-	    Start = if Offset < 1 -> 1;
-		       Offset > L -> L;
-		       true -> Offset
-		    end,
-	    lists:sublist(Set, Start, Limit)
+    case [ {U, S} || {U, S} <- get_users(Server, []), str:prefix(Prefix, U) ] of
+        [] ->
+            [];
+        Users ->
+            Set = lists:keysort(1, Users),
+            L = length(Set),
+            Start = if
+                        Offset < 1 -> 1;
+                        Offset > L -> L;
+                        true -> Offset
+                    end,
+            lists:sublist(Set, Start, Limit)
     end;
 get_users(Server, _) ->
     get_users(Server, []).
 
+
 count_users(Server, []) ->
     case mnesia:dirty_select(
-	   reg_users_counter,
-	   [{#reg_users_counter{vhost = Server, count = '$1'},
-	     [], ['$1']}]) of
-	[Count] -> Count;
-	_ -> 0
+           reg_users_counter,
+           [{#reg_users_counter{vhost = Server, count = '$1'},
+             [],
+             ['$1']}]) of
+        [Count] -> Count;
+        _ -> 0
     end;
 count_users(Server, [{prefix, Prefix}]) when is_binary(Prefix) ->
-    Set = [{U, S} || {U, S} <- get_users(Server, []), str:prefix(Prefix, U)],
+    Set = [ {U, S} || {U, S} <- get_users(Server, []), str:prefix(Prefix, U) ],
     length(Set);
 count_users(Server, _) ->
     count_users(Server, []).
 
+
 get_password(User, Server) ->
-    case mnesia:dirty_select(passwd, [{{'_', {'$1', '$2', '_'}, '$3'},
-				       [{'==', '$1', User},
-					{'==', '$2', Server}],
-				       ['$3']}]) of
-	[_|_] = List ->
-	    List2 = lists:map(
-		fun({scram, SK, SEK, Salt, IC}) ->
-		    #scram{storedkey = SK, serverkey = SEK,
-			   salt = Salt, hash = sha, iterationcount = IC};
-		   (Other) -> Other
-		end, List),
-	    {cache, {ok, List2}};
-	_ ->
-	    {cache, error}
+    case mnesia:dirty_select(passwd,
+                             [{{'_', {'$1', '$2', '_'}, '$3'},
+                               [{'==', '$1', User},
+                                {'==', '$2', Server}],
+                               ['$3']}]) of
+        [_ | _] = List ->
+            List2 = lists:map(
+                      fun({scram, SK, SEK, Salt, IC}) ->
+                              #scram{
+                                storedkey = SK,
+                                serverkey = SEK,
+                                salt = Salt,
+                                hash = sha,
+                                iterationcount = IC
+                               };
+                         (Other) -> Other
+                      end,
+                      List),
+            {cache, {ok, List2}};
+        _ ->
+            {cache, error}
     end.
 
+
 drop_password_type(Server, Hash) ->
     F = fun() ->
-	Keys = mnesia:select(passwd, [{{'_', '$1', '_'},
-				       [{'==', {element, 3, '$1'}, Hash},
-					{'==', {element, 2, '$1'}, Server}],
-				       ['$1']}]),
-	lists:foreach(fun(Key) -> mnesia:delete({passwd, Key}) end, Keys),
-	ok
-	end,
+                Keys = mnesia:select(passwd,
+                                     [{{'_', '$1', '_'},
+                                       [{'==', {element, 3, '$1'}, Hash},
+                                        {'==', {element, 2, '$1'}, Server}],
+                                       ['$1']}]),
+                lists:foreach(fun(Key) -> mnesia:delete({passwd, Key}) end, Keys),
+                ok
+        end,
     case mnesia:transaction(F) of
-	{atomic, ok} ->
-	    ok;
-	{aborted, Reason} ->
-	    ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
-	    {error, db_failure}
+        {atomic, ok} ->
+            ok;
+        {aborted, Reason} ->
+            ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
+            {error, db_failure}
     end.
 
+
 remove_user(User, Server) ->
-    F = fun () ->
-	Keys = mnesia:select(passwd, [{{'_', '$1', '_'},
-				       [{'==', {element, 1, '$1'}, User},
-					{'==', {element, 2, '$1'}, Server}],
-				       ['$1']}]),
-	lists:foreach(fun(Key) -> mnesia:delete({passwd, Key}) end, Keys),
-	mnesia:dirty_update_counter(reg_users_counter, Server, -1),
-	ok
-	end,
+    F = fun() ->
+                Keys = mnesia:select(passwd,
+                                     [{{'_', '$1', '_'},
+                                       [{'==', {element, 1, '$1'}, User},
+                                        {'==', {element, 2, '$1'}, Server}],
+                                       ['$1']}]),
+                lists:foreach(fun(Key) -> mnesia:delete({passwd, Key}) end, Keys),
+                mnesia:dirty_update_counter(reg_users_counter, Server, -1),
+                ok
+        end,
     case mnesia:transaction(F) of
-	{atomic, ok} ->
-	    ok;
-	{aborted, Reason} ->
-	    ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
-	    {error, db_failure}
+        {atomic, ok} ->
+            ok;
+        {aborted, Reason} ->
+            ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
+            {error, db_failure}
     end.
 
+
 need_transform(#reg_users_counter{}) ->
     false;
 need_transform({passwd, {_U, _S, _T}, _Pass}) ->
@@ -266,32 +318,44 @@ need_transform({passwd, {_U, _S, _T}, _Pass}) ->
 need_transform({passwd, {_U, _S}, _Pass}) ->
     true.
 
+
 transform({passwd, {U, S}, Pass})
   when is_list(U) orelse is_list(S) orelse is_list(Pass) ->
     NewUS = {iolist_to_binary(U), iolist_to_binary(S)},
     NewPass = case Pass of
-		  #scram{storedkey = StoredKey,
-			 serverkey = ServerKey,
-			 salt = Salt} ->
-		      Pass#scram{
-			storedkey = iolist_to_binary(StoredKey),
-			serverkey = iolist_to_binary(ServerKey),
-			salt = iolist_to_binary(Salt)};
-		  _ ->
-		      iolist_to_binary(Pass)
-	      end,
+                  #scram{
+                    storedkey = StoredKey,
+                    serverkey = ServerKey,
+                    salt = Salt
+                   } ->
+                      Pass#scram{
+                        storedkey = iolist_to_binary(StoredKey),
+                        serverkey = iolist_to_binary(ServerKey),
+                        salt = iolist_to_binary(Salt)
+                       };
+                  _ ->
+                      iolist_to_binary(Pass)
+              end,
     transform(#passwd{us = NewUS, password = NewPass});
 transform(#passwd{us = {U, S}, password = Password} = P)
   when is_binary(Password) ->
     P#passwd{us = {U, S, plain}, password = Password};
 transform({passwd, {U, S}, {scram, SK, SEK, Salt, IC}}) ->
-    #passwd{us = {U, S, sha},
-	    password = #scram{storedkey = SK, serverkey = SEK,
-			      salt = Salt, hash = sha, iterationcount = IC}};
+    #passwd{
+      us = {U, S, sha},
+      password = #scram{
+                   storedkey = SK,
+                   serverkey = SEK,
+                   salt = Salt,
+                   hash = sha,
+                   iterationcount = IC
+                  }
+     };
 transform(#passwd{us = {U, S}, password = #scram{hash = Hash}} = P) ->
     P#passwd{us = {U, S, Hash}};
 transform(Other) -> Other.
 
+
 import(LServer, [LUser, Password, _TimeStamp]) ->
     mnesia:dirty_write(
       #passwd{us = {LUser, LServer}, password = Password}).

src/ejabberd_auth_pam.erl

@@ -28,52 +28,65 @@
 
 -behaviour(ejabberd_auth).
 
--export([start/1, stop/1, check_password/4,
-	 user_exists/2, store_type/1, plain_password_required/1]).
+-export([start/1,
+         stop/1,
+         check_password/4,
+         user_exists/2,
+         store_type/1,
+         plain_password_required/1]).
+
 
 start(_Host) ->
     ejabberd:start_app(epam).
 
+
 stop(_Host) ->
     ok.
 
+
 check_password(User, AuthzId, Host, Password) ->
-    if AuthzId /= <<>> andalso AuthzId /= User ->
-	    false;
-       true ->
-	    Service = get_pam_service(Host),
-	    UserInfo = case get_pam_userinfotype(Host) of
-			   username -> User;
-			   jid -> <<User/binary, "@", Host/binary>>
-		       end,
-	    case catch epam:authenticate(Service, UserInfo, Password) of
-		true -> {cache, true};
-		false -> {cache, false};
-		_ -> {nocache, false}
-	    end
+    if
+        AuthzId /= <<>> andalso AuthzId /= User ->
+            false;
+        true ->
+            Service = get_pam_service(Host),
+            UserInfo = case get_pam_userinfotype(Host) of
+                           username -> User;
+                           jid -> <<User/binary, "@", Host/binary>>
+                       end,
+            case catch epam:authenticate(Service, UserInfo, Password) of
+                true -> {cache, true};
+                false -> {cache, false};
+                _ -> {nocache, false}
+            end
     end.
 
+
 user_exists(User, Host) ->
     Service = get_pam_service(Host),
     UserInfo = case get_pam_userinfotype(Host) of
-		 username -> User;
-		 jid -> <<User/binary, "@", Host/binary>>
-	       end,
+                   username -> User;
+                   jid -> <<User/binary, "@", Host/binary>>
+               end,
     case catch epam:acct_mgmt(Service, UserInfo) of
-	true -> {cache, true};
-	false -> {cache, false};
-	_Err -> {nocache, {error, db_failure}}
+        true -> {cache, true};
+        false -> {cache, false};
+        _Err -> {nocache, {error, db_failure}}
     end.
 
+
 plain_password_required(_) -> true.
 
+
 store_type(_) -> external.
 
+
 %%====================================================================
 %% Internal functions
 %%====================================================================
 get_pam_service(Host) ->
     ejabberd_option:pam_service(Host).
 
+
 get_pam_userinfotype(Host) ->
     ejabberd_option:pam_userinfotype(Host).

src/ejabberd_auth_sql.erl

@@ -25,22 +25,33 @@
 
 -module(ejabberd_auth_sql).
 
-
 -author('alexey@process-one.net').
 
 -behaviour(ejabberd_auth).
 
--export([start/1, stop/1, set_password_multiple/3, try_register_multiple/3,
-	 get_users/2, count_users/2, get_password/2,
-	 remove_user/2, store_type/1, plain_password_required/1,
-	 export/1, which_users_exists/2, drop_password_type/2, set_password_instance/3]).
+-export([start/1,
+         stop/1,
+         set_password_multiple/3,
+         try_register_multiple/3,
+         get_users/2,
+         count_users/2,
+         get_password/2,
+         remove_user/2,
+         store_type/1,
+         plain_password_required/1,
+         export/1,
+         which_users_exists/2,
+         drop_password_type/2,
+         set_password_instance/3]).
 -export([sql_schemas/0]).
 
 -include_lib("xmpp/include/scram.hrl").
+
 -include("logger.hrl").
 -include("ejabberd_sql_pt.hrl").
 -include("ejabberd_auth.hrl").
 
+
 %%%----------------------------------------------------------------------
 %%% API
 %%%----------------------------------------------------------------------
@@ -48,251 +59,341 @@ start(Host) ->
     ejabberd_sql_schema:update_schema(Host, ?MODULE, sql_schemas()),
     ok.
 
+
 sql_schemas() ->
-    [
-	#sql_schema{
-	version = 2,
-	tables =
-	[#sql_table{
-	    name = <<"users">>,
-	    columns =
-	    [#sql_column{name = <<"username">>, type = text},
-		#sql_column{name = <<"server_host">>, type = text},
-		#sql_column{name = <<"type">>, type = smallint},
-		#sql_column{name = <<"password">>, type = text},
-		#sql_column{name = <<"serverkey">>, type = {text, 128},
-		    default = true},
-		#sql_column{name = <<"salt">>, type = {text, 128},
-		    default = true},
-		#sql_column{name = <<"iterationcount">>, type = integer,
-		    default = true},
-		#sql_column{name = <<"created_at">>, type = timestamp,
-		    default = true}],
-	    indices = [#sql_index{
-		columns = [<<"server_host">>, <<"username">>, <<"type">>],
-		unique = true}]}],
-	update = [
-	    {add_column, <<"users">>, <<"type">>},
-	    {update_primary_key,<<"users">>,
-		[<<"server_host">>, <<"username">>, <<"type">>]}
-	]},
-    #sql_schema{
-        version = 1,
-        tables =
-            [#sql_table{
-                name = <<"users">>,
-                columns =
-                    [#sql_column{name = <<"username">>, type = text},
-                     #sql_column{name = <<"server_host">>, type = text},
-                     #sql_column{name = <<"password">>, type = text},
-                     #sql_column{name = <<"serverkey">>, type = {text, 128},
-                                 default = true},
-                     #sql_column{name = <<"salt">>, type = {text, 128},
-                                 default = true},
-                     #sql_column{name = <<"iterationcount">>, type = integer,
-                                 default = true},
-                     #sql_column{name = <<"created_at">>, type = timestamp,
-                                 default = true}],
-                indices = [#sql_index{
-                              columns = [<<"server_host">>, <<"username">>],
-                              unique = true}]}]}].
+    [#sql_schema{
+       version = 2,
+       tables =
+           [#sql_table{
+              name = <<"users">>,
+              columns =
+                  [#sql_column{name = <<"username">>, type = text},
+                   #sql_column{name = <<"server_host">>, type = text},
+                   #sql_column{name = <<"type">>, type = smallint},
+                   #sql_column{name = <<"password">>, type = text},
+                   #sql_column{
+                     name = <<"serverkey">>,
+                     type = {text, 128},
+                     default = true
+                    },
+                   #sql_column{
+                     name = <<"salt">>,
+                     type = {text, 128},
+                     default = true
+                    },
+                   #sql_column{
+                     name = <<"iterationcount">>,
+                     type = integer,
+                     default = true
+                    },
+                   #sql_column{
+                     name = <<"created_at">>,
+                     type = timestamp,
+                     default = true
+                    }],
+              indices = [#sql_index{
+                           columns = [<<"server_host">>, <<"username">>, <<"type">>],
+                           unique = true
+                          }]
+             }],
+       update = [{add_column, <<"users">>, <<"type">>},
+                 {update_primary_key, <<"users">>,
+                                      [<<"server_host">>, <<"username">>, <<"type">>]}]
+      },
+     #sql_schema{
+       version = 1,
+       tables =
+           [#sql_table{
+              name = <<"users">>,
+              columns =
+                  [#sql_column{name = <<"username">>, type = text},
+                   #sql_column{name = <<"server_host">>, type = text},
+                   #sql_column{name = <<"password">>, type = text},
+                   #sql_column{
+                     name = <<"serverkey">>,
+                     type = {text, 128},
+                     default = true
+                    },
+                   #sql_column{
+                     name = <<"salt">>,
+                     type = {text, 128},
+                     default = true
+                    },
+                   #sql_column{
+                     name = <<"iterationcount">>,
+                     type = integer,
+                     default = true
+                    },
+                   #sql_column{
+                     name = <<"created_at">>,
+                     type = timestamp,
+                     default = true
+                    }],
+              indices = [#sql_index{
+                           columns = [<<"server_host">>, <<"username">>],
+                           unique = true
+                          }]
+             }]
+      }].
+
 
 stop(_Host) -> ok.
 
+
 plain_password_required(Server) ->
     store_type(Server) == scram.
 
+
 store_type(Server) ->
     ejabberd_auth:password_format(Server).
 
+
 hash_to_num(plain) -> 1;
 hash_to_num(sha) -> 2;
 hash_to_num(sha256) -> 3;
 hash_to_num(sha512) -> 4.
 
+
 num_to_hash(2) -> sha;
 num_to_hash(3) -> sha256;
 num_to_hash(4) -> sha512.
 
-set_password_instance(User, Server, #scram{hash = Hash, storedkey = SK, serverkey = SEK,
-					   salt = Salt, iterationcount = IC}) ->
+
+set_password_instance(User,
+                      Server,
+                      #scram{
+                        hash = Hash,
+                        storedkey = SK,
+                        serverkey = SEK,
+                        salt = Salt,
+                        iterationcount = IC
+                       }) ->
     F = fun() ->
-	set_password_scram_t(User, Server, Hash,
-			     SK, SEK, Salt, IC)
-	end,
+                set_password_scram_t(User,
+                                     Server,
+                                     Hash,
+                                     SK,
+                                     SEK,
+                                     Salt,
+                                     IC)
+        end,
     case ejabberd_sql:sql_transaction(Server, F) of
-	{atomic, _} ->
-	    ok;
-	{aborted, _} ->
-	    {error, db_failure}
+        {atomic, _} ->
+            ok;
+        {aborted, _} ->
+            {error, db_failure}
     end;
 set_password_instance(User, Server, Plain) ->
     F = fun() ->
-	set_password_t(User, Server, Plain)
-	end,
+                set_password_t(User, Server, Plain)
+        end,
     case ejabberd_sql:sql_transaction(Server, F) of
-	{atomic, _} ->
-	    ok;
-	{aborted, _} ->
-	    {error, db_failure}
+        {atomic, _} ->
+            ok;
+        {aborted, _} ->
+            {error, db_failure}
     end.
 
+
 set_password_multiple(User, Server, Passwords) ->
     F =
-    fun() ->
-	ejabberd_sql:sql_query_t(
-	    ?SQL("delete from users where username=%(User)s and %(Server)H")),
-	lists:foreach(
-	    fun(#scram{hash = Hash, storedkey = SK, serverkey = SEK,
-		       salt = Salt, iterationcount = IC}) ->
-		set_password_scram_t(
-		    User, Server, Hash,
-		    SK, SEK, Salt, IC);
-	       (Plain) ->
-		   set_password_t(User, Server, Plain)
-	    end, Passwords)
-    end,
+        fun() ->
+                ejabberd_sql:sql_query_t(
+                  ?SQL("delete from users where username=%(User)s and %(Server)H")),
+                lists:foreach(
+                  fun(#scram{
+                        hash = Hash,
+                        storedkey = SK,
+                        serverkey = SEK,
+                        salt = Salt,
+                        iterationcount = IC
+                       }) ->
+                          set_password_scram_t(
+                            User,
+                            Server,
+                            Hash,
+                            SK,
+                            SEK,
+                            Salt,
+                            IC);
+                     (Plain) ->
+                          set_password_t(User, Server, Plain)
+                  end,
+                  Passwords)
+        end,
     case ejabberd_sql:sql_transaction(Server, F) of
-	{atomic, _} ->
-	    {cache, {ok, Passwords}};
-	{aborted, _} ->
-	    {nocache, {error, db_failure}}
+        {atomic, _} ->
+            {cache, {ok, Passwords}};
+        {aborted, _} ->
+            {nocache, {error, db_failure}}
     end.
 
+
 try_register_multiple(User, Server, Passwords) ->
     F =
-	fun() ->
-	    case ejabberd_sql:sql_query_t(
-		?SQL("select @(count(*))d from users where username=%(User)s and %(Server)H")) of
-		{selected, [{0}]} ->
-		    lists:foreach(
-			fun(#scram{hash = Hash, storedkey = SK, serverkey = SEK,
-				   salt = Salt, iterationcount = IC}) ->
-			    set_password_scram_t(
-				User, Server, Hash,
-				SK, SEK, Salt, IC);
-			   (Plain) ->
-			       set_password_t(User, Server, Plain)
-			end, Passwords),
-		    {cache, {ok, Passwords}};
-		{selected, _} ->
-		    {nocache, {error, exists}};
-		_ ->
-		    {nocache, {error, db_failure}}
-	    end
-	end,
+        fun() ->
+                case ejabberd_sql:sql_query_t(
+                       ?SQL("select @(count(*))d from users where username=%(User)s and %(Server)H")) of
+                    {selected, [{0}]} ->
+                        lists:foreach(
+                          fun(#scram{
+                                hash = Hash,
+                                storedkey = SK,
+                                serverkey = SEK,
+                                salt = Salt,
+                                iterationcount = IC
+                               }) ->
+                                  set_password_scram_t(
+                                    User,
+                                    Server,
+                                    Hash,
+                                    SK,
+                                    SEK,
+                                    Salt,
+                                    IC);
+                             (Plain) ->
+                                  set_password_t(User, Server, Plain)
+                          end,
+                          Passwords),
+                        {cache, {ok, Passwords}};
+                    {selected, _} ->
+                        {nocache, {error, exists}};
+                    _ ->
+                        {nocache, {error, db_failure}}
+                end
+        end,
     case ejabberd_sql:sql_transaction(Server, F) of
-	{atomic, Res} ->
-	    Res;
-	{aborted, _} ->
-	    {nocache, {error, db_failure}}
+        {atomic, Res} ->
+            Res;
+        {aborted, _} ->
+            {nocache, {error, db_failure}}
     end.
 
+
 get_users(Server, Opts) ->
     case list_users(Server, Opts) of
-	{selected, Res} ->
-	    [{U, Server} || {U} <- Res];
-	_ -> []
+        {selected, Res} ->
+            [ {U, Server} || {U} <- Res ];
+        _ -> []
     end.
 
+
 count_users(Server, Opts) ->
     case users_number(Server, Opts) of
-	{selected, [{Res}]} ->
-	    Res;
-	_Other -> 0
+        {selected, [{Res}]} ->
+            Res;
+        _Other -> 0
     end.
 
+
 get_password(User, Server) ->
     case get_password_scram(Server, User) of
-	{selected, []} ->
-	    {cache, error};
-	{selected, Passwords} ->
-	    Converted = lists:map(
-		fun({0, Password, <<>>, <<>>, 0}) ->
-		    update_password_type(User, Server, 1),
-		    Password;
-		   ({_, Password, <<>>, <<>>, 0}) ->
-		       Password;
-		   ({0, StoredKey, ServerKey, Salt, IterationCount}) ->
-		       {Hash, SK} = case StoredKey of
-					<<"sha256:", Rest/binary>> ->
-					    update_password_type(User, Server, 3, Rest),
-					    {sha256, Rest};
-					<<"sha512:", Rest/binary>> ->
-					    update_password_type(User, Server, 4, Rest),
-					    {sha512, Rest};
-					Other ->
-					    update_password_type(User, Server, 2),
-					    {sha, Other}
-				    end,
-		       #scram{storedkey = SK,
-			      serverkey = ServerKey,
-			      salt = Salt,
-			      hash = Hash,
-			      iterationcount = IterationCount};
-		   ({Type, StoredKey, ServerKey, Salt, IterationCount}) ->
-		       Hash = num_to_hash(Type),
-		       #scram{storedkey = StoredKey,
-			      serverkey = ServerKey,
-			      salt = Salt,
-			      hash = Hash,
-			      iterationcount = IterationCount}
-		end, Passwords),
-	    {cache, {ok, Converted}};
-	_ ->
-	    {nocache, error}
+        {selected, []} ->
+            {cache, error};
+        {selected, Passwords} ->
+            Converted = lists:map(
+                          fun({0, Password, <<>>, <<>>, 0}) ->
+                                  update_password_type(User, Server, 1),
+                                  Password;
+                             ({_, Password, <<>>, <<>>, 0}) ->
+                                  Password;
+                             ({0, StoredKey, ServerKey, Salt, IterationCount}) ->
+                                  {Hash, SK} = case StoredKey of
+                                                   <<"sha256:", Rest/binary>> ->
+                                                       update_password_type(User, Server, 3, Rest),
+                                                       {sha256, Rest};
+                                                   <<"sha512:", Rest/binary>> ->
+                                                       update_password_type(User, Server, 4, Rest),
+                                                       {sha512, Rest};
+                                                   Other ->
+                                                       update_password_type(User, Server, 2),
+                                                       {sha, Other}
+                                               end,
+                                  #scram{
+                                    storedkey = SK,
+                                    serverkey = ServerKey,
+                                    salt = Salt,
+                                    hash = Hash,
+                                    iterationcount = IterationCount
+                                   };
+                             ({Type, StoredKey, ServerKey, Salt, IterationCount}) ->
+                                  Hash = num_to_hash(Type),
+                                  #scram{
+                                    storedkey = StoredKey,
+                                    serverkey = ServerKey,
+                                    salt = Salt,
+                                    hash = Hash,
+                                    iterationcount = IterationCount
+                                   }
+                          end,
+                          Passwords),
+            {cache, {ok, Converted}};
+        _ ->
+            {nocache, error}
     end.
 
+
 remove_user(User, Server) ->
     case del_user(Server, User) of
-	{updated, _} ->
-	    ok;
-	_ ->
-	    {error, db_failure}
+        {updated, _} ->
+            ok;
+        _ ->
+            {error, db_failure}
     end.
 
+
 drop_password_type(LServer, Hash) ->
     Type = hash_to_num(Hash),
     ejabberd_sql:sql_query(
-	LServer,
-	?SQL("delete from users"
-	     " where type=%(Type)d and %(LServer)H")).
+      LServer,
+      ?SQL("delete from users"
+           " where type=%(Type)d and %(LServer)H")).
 
-set_password_scram_t(LUser, LServer, Hash,
-                     StoredKey, ServerKey, Salt, IterationCount) ->
+
+set_password_scram_t(LUser,
+                     LServer,
+                     Hash,
+                     StoredKey,
+                     ServerKey,
+                     Salt,
+                     IterationCount) ->
     Type = hash_to_num(Hash),
     ?SQL_UPSERT_T(
-       "users",
-       ["!username=%(LUser)s",
-        "!server_host=%(LServer)s",
-	"!type=%(Type)d",
-        "password=%(StoredKey)s",
-        "serverkey=%(ServerKey)s",
-        "salt=%(Salt)s",
-        "iterationcount=%(IterationCount)d"]).
+      "users",
+      ["!username=%(LUser)s",
+       "!server_host=%(LServer)s",
+       "!type=%(Type)d",
+       "password=%(StoredKey)s",
+       "serverkey=%(ServerKey)s",
+       "salt=%(Salt)s",
+       "iterationcount=%(IterationCount)d"]).
+
 
 set_password_t(LUser, LServer, Password) ->
     ?SQL_UPSERT_T(
-       "users",
-       ["!username=%(LUser)s",
-        "!server_host=%(LServer)s",
-	"!type=1",
-	"password=%(Password)s",
-	"serverkey=''",
-	"salt=''",
-	"iterationcount=0"]).
+      "users",
+      ["!username=%(LUser)s",
+       "!server_host=%(LServer)s",
+       "!type=1",
+       "password=%(Password)s",
+       "serverkey=''",
+       "salt=''",
+       "iterationcount=0"]).
+
 
 update_password_type(LUser, LServer, Type, Password) ->
     ejabberd_sql:sql_query(
-	LServer,
-	?SQL("update users set type=%(Type)d, password=%(Password)s"
-	     " where username=%(LUser)s and type=0 and %(LServer)H")).
+      LServer,
+      ?SQL("update users set type=%(Type)d, password=%(Password)s"
+           " where username=%(LUser)s and type=0 and %(LServer)H")).
+
 
 update_password_type(LUser, LServer, Type) ->
     ejabberd_sql:sql_query(
-	LServer,
-	?SQL("update users set type=%(Type)d"
-	     " where username=%(LUser)s and type=0 and %(LServer)H")).
+      LServer,
+      ?SQL("update users set type=%(Type)d"
+           " where username=%(LUser)s and type=0 and %(LServer)H")).
+
 
 get_password_scram(LServer, LUser) ->
     ejabberd_sql:sql_query(
@@ -301,28 +402,31 @@ get_password_scram(LServer, LUser) ->
            " from users"
            " where username=%(LUser)s and %(LServer)H")).
 
+
 del_user(LServer, LUser) ->
     ejabberd_sql:sql_query(
       LServer,
       ?SQL("delete from users where username=%(LUser)s and %(LServer)H")).
 
+
 list_users(LServer, []) ->
     ejabberd_sql:sql_query(
       LServer,
       ?SQL("select @(distinct username)s from users where %(LServer)H"));
 list_users(LServer, [{from, Start}, {to, End}])
-    when is_integer(Start) and is_integer(End) ->
+  when is_integer(Start) and is_integer(End) ->
     list_users(LServer,
-	       [{limit, End - Start + 1}, {offset, Start - 1}]);
+               [{limit, End - Start + 1}, {offset, Start - 1}]);
 list_users(LServer,
-	   [{prefix, Prefix}, {from, Start}, {to, End}])
-    when is_binary(Prefix) and is_integer(Start) and
-	   is_integer(End) ->
+           [{prefix, Prefix}, {from, Start}, {to, End}])
+  when is_binary(Prefix) and is_integer(Start) and
+       is_integer(End) ->
     list_users(LServer,
-	       [{prefix, Prefix}, {limit, End - Start + 1},
-		{offset, Start - 1}]);
+               [{prefix, Prefix},
+                {limit, End - Start + 1},
+                {offset, Start - 1}]);
 list_users(LServer, [{limit, Limit}, {offset, Offset}])
-    when is_integer(Limit) and is_integer(Offset) ->
+  when is_integer(Limit) and is_integer(Offset) ->
     ejabberd_sql:sql_query(
       LServer,
       ?SQL("select @(distinct username)s from users "
@@ -330,9 +434,9 @@ list_users(LServer, [{limit, Limit}, {offset, Offset}])
            "order by username "
            "limit %(Limit)d offset %(Offset)d"));
 list_users(LServer,
-	   [{prefix, Prefix}, {limit, Limit}, {offset, Offset}])
-    when is_binary(Prefix) and is_integer(Limit) and
-	   is_integer(Offset) ->
+           [{prefix, Prefix}, {limit, Limit}, {offset, Offset}])
+  when is_binary(Prefix) and is_integer(Limit) and
+       is_integer(Offset) ->
     SPrefix = ejabberd_sql:escape_like_arg(Prefix),
     SPrefix2 = <<SPrefix/binary, $%>>,
     ejabberd_sql:sql_query(
@@ -342,12 +446,12 @@ list_users(LServer,
            "order by username "
            "limit %(Limit)d offset %(Offset)d")).
 
+
 users_number(LServer) ->
     ejabberd_sql:sql_query(
       LServer,
       fun(pgsql, _) ->
-              case
-                  ejabberd_option:pgsql_users_number_estimate(LServer) of
+              case ejabberd_option:pgsql_users_number_estimate(LServer) of
                   true ->
                       ejabberd_sql:sql_query_t(
                         ?SQL("select @(reltuples :: bigint)d from pg_class"
@@ -355,14 +459,15 @@ users_number(LServer) ->
                   _ ->
                       ejabberd_sql:sql_query_t(
                         ?SQL("select @(count(distinct username))d from users where %(LServer)H"))
-	  end;
+              end;
          (_Type, _) ->
               ejabberd_sql:sql_query_t(
                 ?SQL("select @(count(distinct username))d from users where %(LServer)H"))
       end).
 
+
 users_number(LServer, [{prefix, Prefix}])
-    when is_binary(Prefix) ->
+  when is_binary(Prefix) ->
     SPrefix = ejabberd_sql:escape_like_arg(Prefix),
     SPrefix2 = <<SPrefix/binary, $%>>,
     ejabberd_sql:sql_query(
@@ -372,16 +477,18 @@ users_number(LServer, [{prefix, Prefix}])
 users_number(LServer, []) ->
     users_number(LServer).
 
+
 which_users_exists(LServer, LUsers) when length(LUsers) =< 100 ->
     try ejabberd_sql:sql_query(
-        LServer,
-        ?SQL("select @(distinct username)s from users where username in %(LUsers)ls")) of
+          LServer,
+          ?SQL("select @(distinct username)s from users where username in %(LUsers)ls")) of
         {selected, Matching} ->
-            [U || {U} <- Matching];
+            [ U || {U} <- Matching ];
         {error, _} = E ->
             E
-    catch _:B ->
-        {error, B}
+    catch
+        _:B ->
+            {error, B}
     end;
 which_users_exists(LServer, LUsers) ->
     {First, Rest} = lists:split(100, LUsers),
@@ -397,6 +504,7 @@ which_users_exists(LServer, LUsers) ->
             end
     end.
 
+
 export(_Server) ->
     [{passwd,
       fun(Host, #passwd{us = {LUser, LServer, plain}, password = Password})
@@ -404,43 +512,44 @@ export(_Server) ->
                  is_binary(Password) ->
               [?SQL("delete from users where username=%(LUser)s and type=1 and %(LServer)H;"),
                ?SQL_INSERT(
-                  "users",
-                  ["username=%(LUser)s",
-                   "server_host=%(LServer)s",
-                   "type=1",
-                   "password=%(Password)s"])];
-         (Host, {passwd, {LUser, LServer, _},
-                         {scram, StoredKey, ServerKey, Salt, IterationCount}})
+                 "users",
+                 ["username=%(LUser)s",
+                  "server_host=%(LServer)s",
+                  "type=1",
+                  "password=%(Password)s"])];
+         (Host,
+          {passwd, {LUser, LServer, _},
+                   {scram, StoredKey, ServerKey, Salt, IterationCount}})
             when LServer == Host ->
               Hash = sha,
               Type = hash_to_num(Hash),
               [?SQL("delete from users where username=%(LUser)s and type=%(Type)d and %(LServer)H;"),
                ?SQL_INSERT(
-                  "users",
-                  ["username=%(LUser)s",
-                   "server_host=%(LServer)s",
-                   "type=%(Type)d",
-                   "password=%(StoredKey)s",
-                   "serverkey=%(ServerKey)s",
-                   "salt=%(Salt)s",
-                   "iterationcount=%(IterationCount)d"])];
+                 "users",
+                 ["username=%(LUser)s",
+                  "server_host=%(LServer)s",
+                  "type=%(Type)d",
+                  "password=%(StoredKey)s",
+                  "serverkey=%(ServerKey)s",
+                  "salt=%(Salt)s",
+                  "iterationcount=%(IterationCount)d"])];
          (Host, #passwd{us = {LUser, LServer, _}, password = #scram{} = Scram})
             when LServer == Host ->
-	      StoredKey = Scram#scram.storedkey,
+              StoredKey = Scram#scram.storedkey,
               ServerKey = Scram#scram.serverkey,
               Salt = Scram#scram.salt,
               IterationCount = Scram#scram.iterationcount,
               Type = hash_to_num(Scram#scram.hash),
               [?SQL("delete from users where username=%(LUser)s and type=%(Type)d and %(LServer)H;"),
                ?SQL_INSERT(
-                  "users",
-                  ["username=%(LUser)s",
-                   "server_host=%(LServer)s",
-                   "type=%(Type)d",
-                   "password=%(StoredKey)s",
-                   "serverkey=%(ServerKey)s",
-                   "salt=%(Salt)s",
-                   "iterationcount=%(IterationCount)d"])];
+                 "users",
+                 ["username=%(LUser)s",
+                  "server_host=%(LServer)s",
+                  "type=%(Type)d",
+                  "password=%(StoredKey)s",
+                  "serverkey=%(ServerKey)s",
+                  "salt=%(Salt)s",
+                  "iterationcount=%(IterationCount)d"])];
          (_Host, _R) ->
               []
       end}].

src/ejabberd_backend_sup.erl

@@ -29,12 +29,14 @@
 %% Supervisor callbacks
 -export([init/1]).
 
+
 %%%===================================================================
 %%% API functions
 %%%===================================================================
 start_link() ->
     supervisor:start_link({local, ?MODULE}, ?MODULE, []).
 
+
 %%%===================================================================
 %%% Supervisor callbacks
 %%%===================================================================

src/ejabberd_batch.erl

@@ -34,8 +34,12 @@
 -export([start_link/0]).
 
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2,
-	 code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 -export([register_task/5, task_status/1, abort_task/1]).
 
 -define(SERVER, ?MODULE).
@@ -47,159 +51,178 @@
 %%% API
 %%%===================================================================
 
+
 %% @doc Spawns the server and registers the local name (unique)
 -spec(start_link() ->
-    {ok, Pid :: pid()} | ignore | {error, Reason :: term()}).
+          {ok, Pid :: pid()} | ignore | {error, Reason :: term()}).
 start_link() ->
     gen_server:start_link({local, ?SERVER}, ?MODULE, [], []).
 
+
 register_task(Type, Steps, Rate, JobState, JobFun) ->
     gen_server:call(?MODULE, {register_task, Type, Steps, Rate, JobState, JobFun}).
 
+
 task_status(Type) ->
     gen_server:call(?MODULE, {task_status, Type}).
 
+
 abort_task(Type) ->
     gen_server:call(?MODULE, {abort_task, Type}).
 
+
 %%%===================================================================
 %%% gen_server callbacks
 %%%===================================================================
 
+
 %% @private
 %% @doc Initializes the server
 -spec(init(Args :: term()) ->
-    {ok, State :: #state{}} | {ok, State :: #state{}, timeout() | hibernate} |
-    {stop, Reason :: term()} | ignore).
+          {ok, State :: #state{}} |
+          {ok, State :: #state{}, timeout() | hibernate} |
+          {stop, Reason :: term()} |
+          ignore).
 init([]) ->
     {ok, #state{}}.
 
+
 %% @private
 %% @doc Handling call messages
--spec(handle_call(Request :: term(), From :: {pid(), Tag :: term()},
-		  State :: #state{}) ->
-		     {reply, Reply :: term(), NewState :: #state{}} |
-		     {reply, Reply :: term(), NewState :: #state{}, timeout() | hibernate} |
-		     {noreply, NewState :: #state{}} |
-		     {noreply, NewState :: #state{}, timeout() | hibernate} |
-		     {stop, Reason :: term(), Reply :: term(), NewState :: #state{}} |
-		     {stop, Reason :: term(), NewState :: #state{}}).
+-spec(handle_call(Request :: term(),
+                  From :: {pid(), Tag :: term()},
+                  State :: #state{}) ->
+          {reply, Reply :: term(), NewState :: #state{}} |
+          {reply, Reply :: term(), NewState :: #state{}, timeout() | hibernate} |
+          {noreply, NewState :: #state{}} |
+          {noreply, NewState :: #state{}, timeout() | hibernate} |
+          {stop, Reason :: term(), Reply :: term(), NewState :: #state{}} |
+          {stop, Reason :: term(), NewState :: #state{}}).
 handle_call({register_task, Type, Steps, Rate, JobState, JobFun}, _From, #state{tasks = Tasks} = State) ->
     case maps:get(Type, Tasks, #task{}) of
-	#task{state = S} when S == completed; S == not_started; S == aborted; S == failed ->
-	    Pid = spawn(fun() -> work_loop(Type, JobState, JobFun, Rate, erlang:monotonic_time(second), 0) end),
-	    Tasks2 = maps:put(Type, #task{state = working, pid = Pid, steps = Steps, done_steps = 0}, Tasks),
-	    {reply, ok, #state{tasks = Tasks2}};
-	#task{state = working} ->
-	    {reply, {error, in_progress}, State}
+        #task{state = S} when S == completed; S == not_started; S == aborted; S == failed ->
+            Pid = spawn(fun() -> work_loop(Type, JobState, JobFun, Rate, erlang:monotonic_time(second), 0) end),
+            Tasks2 = maps:put(Type, #task{state = working, pid = Pid, steps = Steps, done_steps = 0}, Tasks),
+            {reply, ok, #state{tasks = Tasks2}};
+        #task{state = working} ->
+            {reply, {error, in_progress}, State}
     end;
 handle_call({task_status, Type}, _From, #state{tasks = Tasks} = State) ->
     case maps:get(Type, Tasks, none) of
-	none ->
-	    {reply, not_started, State};
-	#task{state = not_started} ->
-	    {reply, not_started, State};
-	#task{state = failed, done_steps = Steps, pid = Error} ->
-	    {reply, {failed, Steps, Error}, State};
-	#task{state = aborted, done_steps = Steps} ->
-	    {reply, {aborted, Steps}, State};
-	#task{state = working, done_steps = Steps} ->
-	    {reply, {working, Steps}, State};
-	#task{state = completed, done_steps = Steps} ->
-	    {reply, {completed, Steps}, State}
+        none ->
+            {reply, not_started, State};
+        #task{state = not_started} ->
+            {reply, not_started, State};
+        #task{state = failed, done_steps = Steps, pid = Error} ->
+            {reply, {failed, Steps, Error}, State};
+        #task{state = aborted, done_steps = Steps} ->
+            {reply, {aborted, Steps}, State};
+        #task{state = working, done_steps = Steps} ->
+            {reply, {working, Steps}, State};
+        #task{state = completed, done_steps = Steps} ->
+            {reply, {completed, Steps}, State}
     end;
 handle_call({abort_task, Type}, _From, #state{tasks = Tasks} = State) ->
     case maps:get(Type, Tasks, none) of
-	#task{state = working, pid = Pid} = T ->
-	    Pid ! abort,
-	    Tasks2 = maps:put(Type, T#task{state = aborted, pid = none}, Tasks),
-	    {reply, aborted, State#state{tasks = Tasks2}};
-	_ ->
-	    {reply, not_started, State}
+        #task{state = working, pid = Pid} = T ->
+            Pid ! abort,
+            Tasks2 = maps:put(Type, T#task{state = aborted, pid = none}, Tasks),
+            {reply, aborted, State#state{tasks = Tasks2}};
+        _ ->
+            {reply, not_started, State}
     end;
 handle_call(_Request, _From, State = #state{}) ->
     {reply, ok, State}.
 
+
 %% @private
 %% @doc Handling cast messages
 -spec(handle_cast(Request :: term(), State :: #state{}) ->
-    {noreply, NewState :: #state{}} |
-    {noreply, NewState :: #state{}, timeout() | hibernate} |
-    {stop, Reason :: term(), NewState :: #state{}}).
+          {noreply, NewState :: #state{}} |
+          {noreply, NewState :: #state{}, timeout() | hibernate} |
+          {stop, Reason :: term(), NewState :: #state{}}).
 handle_cast({task_finished, Type, Pid}, #state{tasks = Tasks} = State) ->
     case maps:get(Type, Tasks, none) of
-	#task{state = working, pid = Pid2} = T when Pid == Pid2  ->
-	    Tasks2 = maps:put(Type, T#task{state = completed, pid = none}, Tasks),
-	    {noreply, State#state{tasks = Tasks2}};
-	_ ->
-	    {noreply, State}
+        #task{state = working, pid = Pid2} = T when Pid == Pid2 ->
+            Tasks2 = maps:put(Type, T#task{state = completed, pid = none}, Tasks),
+            {noreply, State#state{tasks = Tasks2}};
+        _ ->
+            {noreply, State}
     end;
 handle_cast({task_progress, Type, Pid, Count}, #state{tasks = Tasks} = State) ->
     case maps:get(Type, Tasks, none) of
-	#task{state = working, pid = Pid2, done_steps = Steps} = T when Pid == Pid2  ->
-	    Tasks2 = maps:put(Type, T#task{done_steps = Steps + Count}, Tasks),
-	    {noreply, State#state{tasks = Tasks2}};
-	_ ->
-	    {noreply, State}
+        #task{state = working, pid = Pid2, done_steps = Steps} = T when Pid == Pid2 ->
+            Tasks2 = maps:put(Type, T#task{done_steps = Steps + Count}, Tasks),
+            {noreply, State#state{tasks = Tasks2}};
+        _ ->
+            {noreply, State}
     end;
 handle_cast({task_error, Type, Pid, Error}, #state{tasks = Tasks} = State) ->
     case maps:get(Type, Tasks, none) of
-	#task{state = working, pid = Pid2} = T when Pid == Pid2  ->
-	    Tasks2 = maps:put(Type, T#task{state = failed, pid = Error}, Tasks),
-	    {noreply, State#state{tasks = Tasks2}};
-	_ ->
-	    {noreply, State}
+        #task{state = working, pid = Pid2} = T when Pid == Pid2 ->
+            Tasks2 = maps:put(Type, T#task{state = failed, pid = Error}, Tasks),
+            {noreply, State#state{tasks = Tasks2}};
+        _ ->
+            {noreply, State}
     end;
 handle_cast(_Request, State = #state{}) ->
     {noreply, State}.
 
+
 %% @private
 %% @doc Handling all non call/cast messages
 -spec(handle_info(Info :: timeout() | term(), State :: #state{}) ->
-    {noreply, NewState :: #state{}} |
-    {noreply, NewState :: #state{}, timeout() | hibernate} |
-    {stop, Reason :: term(), NewState :: #state{}}).
+          {noreply, NewState :: #state{}} |
+          {noreply, NewState :: #state{}, timeout() | hibernate} |
+          {stop, Reason :: term(), NewState :: #state{}}).
 handle_info(_Info, State = #state{}) ->
     {noreply, State}.
 
+
 %% @private
 %% @doc This function is called by a gen_server when it is about to
 %% terminate. It should be the opposite of Module:init/1 and do any
 %% necessary cleaning up. When it returns, the gen_server terminates
 %% with Reason. The return value is ignored.
 -spec(terminate(Reason :: (normal | shutdown | {shutdown, term()} | term()),
-		State :: #state{}) -> term()).
+                State :: #state{}) -> term()).
 terminate(_Reason, _State = #state{}) ->
     ok.
 
+
 %% @private
 %% @doc Convert process state when code is changed
--spec(code_change(OldVsn :: term() | {down, term()}, State :: #state{},
-		  Extra :: term()) ->
-		     {ok, NewState :: #state{}} | {error, Reason :: term()}).
+-spec(code_change(OldVsn :: term() | {down, term()},
+                  State :: #state{},
+                  Extra :: term()) ->
+          {ok, NewState :: #state{}} | {error, Reason :: term()}).
 code_change(_OldVsn, State = #state{}, _Extra) ->
     {ok, State}.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
 
+
 work_loop(Task, JobState, JobFun, Rate, StartDate, CurrentProgress) ->
     try JobFun(JobState) of
-	{ok, _NewState, 0} ->
-	    gen_server:cast(?MODULE, {task_finished, Task, self()});
-	{ok, NewState, Count} ->
-	    gen_server:cast(?MODULE, {task_progress, Task, self(), Count}),
-	    NewProgress = CurrentProgress + Count,
-	    TimeSpent = erlang:monotonic_time(second) - StartDate,
-	    SleepTime = max(0, NewProgress/Rate*60 - TimeSpent),
-	    receive
-		abort -> ok
-	    after round(SleepTime*1000) ->
-		work_loop(Task, NewState, JobFun, Rate, StartDate, NewProgress)
-	    end;
-	{error, Error} ->
-	    gen_server:cast(?MODULE, {task_error, Task, self(), Error})
-    catch _:_ ->
-	gen_server:cast(?MODULE, {task_error, Task, self(), internal_error})
+        {ok, _NewState, 0} ->
+            gen_server:cast(?MODULE, {task_finished, Task, self()});
+        {ok, NewState, Count} ->
+            gen_server:cast(?MODULE, {task_progress, Task, self(), Count}),
+            NewProgress = CurrentProgress + Count,
+            TimeSpent = erlang:monotonic_time(second) - StartDate,
+            SleepTime = max(0, NewProgress / Rate * 60 - TimeSpent),
+            receive
+                abort -> ok
+            after
+                round(SleepTime * 1000) ->
+                    work_loop(Task, NewState, JobFun, Rate, StartDate, NewProgress)
+            end;
+        {error, Error} ->
+            gen_server:cast(?MODULE, {task_error, Task, self(), Error})
+    catch
+        _:_ ->
+            gen_server:cast(?MODULE, {task_error, Task, self(), internal_error})
     end.

src/ejabberd_c2s_config.erl

@@ -30,23 +30,27 @@
 
 -export([get_c2s_limits/0]).
 
+
 %% Get first c2s configuration limitations to apply it to other c2s
 %% connectors.
 get_c2s_limits() ->
     C2SFirstListen = ejabberd_option:listen(),
     case lists:keysearch(ejabberd_c2s, 2, C2SFirstListen) of
-	false -> [];
-	{value, {_Port, ejabberd_c2s, Opts}} ->
-	    select_opts_values(Opts)
+        false -> [];
+        {value, {_Port, ejabberd_c2s, Opts}} ->
+            select_opts_values(Opts)
     end.
 
+
 %% Only get access, shaper and max_stanza_size values
 select_opts_values(Opts) ->
     maps:fold(
       fun(Opt, Val, Acc) when Opt == access;
-			      Opt == shaper;
-			      Opt == max_stanza_size ->
-	      [{Opt, Val}|Acc];
-	 (_, _, Acc) ->
-	      Acc
-      end, [], Opts).
+                              Opt == shaper;
+                              Opt == max_stanza_size ->
+              [{Opt, Val} | Acc];
+         (_, _, Acc) ->
+              Acc
+      end,
+      [],
+      Opts).

src/ejabberd_cluster.erl

@@ -24,14 +24,27 @@
 -behaviour(gen_server).
 
 %% API
--export([start_link/0, call/4, call/5, multicall/3, multicall/4, multicall/5,
-	 eval_everywhere/3, eval_everywhere/4]).
+-export([start_link/0,
+         call/4, call/5,
+         multicall/3, multicall/4, multicall/5,
+         eval_everywhere/3, eval_everywhere/4]).
 %% Backend dependent API
--export([get_nodes/0, get_known_nodes/0, join/1, leave/1, subscribe/0,
-	 subscribe/1, node_id/0, get_node_by_id/1, send/2, wait_for_sync/1]).
+-export([get_nodes/0,
+         get_known_nodes/0,
+         join/1,
+         leave/1,
+         subscribe/0, subscribe/1,
+         node_id/0,
+         get_node_by_id/1,
+         send/2,
+         wait_for_sync/1]).
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2,
-	 terminate/2, code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 %% hooks
 -export([set_ticktime/0]).
 
@@ -39,6 +52,7 @@
 
 -type dst() :: pid() | atom() | {atom(), node()}.
 
+
 -callback init() -> ok | {error, any()}.
 -callback get_nodes() -> [node()].
 -callback get_known_nodes() -> [node()].
@@ -52,42 +66,51 @@
 
 -record(state, {}).
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
 start_link() ->
     gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
 
+
 -spec call(node(), module(), atom(), [any()]) -> any().
 call(Node, Module, Function, Args) ->
     call(Node, Module, Function, Args, rpc_timeout()).
 
+
 -spec call(node(), module(), atom(), [any()], timeout()) -> any().
 call(Node, Module, Function, Args, Timeout) ->
     rpc:call(Node, Module, Function, Args, Timeout).
 
+
 -spec multicall(module(), atom(), [any()]) -> {list(), [node()]}.
 multicall(Module, Function, Args) ->
     multicall(get_nodes(), Module, Function, Args).
 
+
 -spec multicall([node()], module(), atom(), list()) -> {list(), [node()]}.
 multicall(Nodes, Module, Function, Args) ->
     multicall(Nodes, Module, Function, Args, rpc_timeout()).
 
+
 -spec multicall([node()], module(), atom(), list(), timeout()) -> {list(), [node()]}.
 multicall(Nodes, Module, Function, Args, Timeout) ->
     rpc:multicall(Nodes, Module, Function, Args, Timeout).
 
+
 -spec eval_everywhere(module(), atom(), [any()]) -> ok.
 eval_everywhere(Module, Function, Args) ->
     eval_everywhere(get_nodes(), Module, Function, Args),
     ok.
 
+
 -spec eval_everywhere([node()], module(), atom(), [any()]) -> ok.
 eval_everywhere(Nodes, Module, Function, Args) ->
     rpc:eval_everywhere(Nodes, Module, Function, Args),
     ok.
 
+
 %%%===================================================================
 %%% Backend dependent API
 %%%===================================================================
@@ -96,31 +119,37 @@ get_nodes() ->
     Mod = get_mod(),
     Mod:get_nodes().
 
+
 -spec get_known_nodes() -> [node()].
 get_known_nodes() ->
     Mod = get_mod(),
     Mod:get_known_nodes().
 
+
 -spec join(node()) -> ok | {error, any()}.
 join(Node) ->
     Mod = get_mod(),
     Mod:join(Node).
 
+
 -spec leave(node()) -> ok | {error, any()}.
 leave(Node) ->
     Mod = get_mod(),
     Mod:leave(Node).
 
+
 -spec node_id() -> binary().
 node_id() ->
     Mod = get_mod(),
     Mod:node_id().
 
+
 -spec get_node_by_id(binary()) -> node().
 get_node_by_id(ID) ->
     Mod = get_mod(),
     Mod:get_node_by_id(ID).
 
+
 %% Note that false positive returns are possible, while false negatives are not.
 %% In other words: positive return value (i.e. 'true') doesn't guarantee
 %% successful delivery, while negative return value ('false') means
@@ -134,45 +163,51 @@ send(Name, Msg) when is_atom(Name) ->
     send(whereis(Name), Msg);
 send(Pid, Msg) when is_pid(Pid) andalso node(Pid) == node() ->
     case erlang:is_process_alive(Pid) of
-	true ->
-	    erlang:send(Pid, Msg),
-	    true;
-	false ->
-	    false
+        true ->
+            erlang:send(Pid, Msg),
+            true;
+        false ->
+            false
     end;
 send(Dst, Msg) ->
     Mod = get_mod(),
     Mod:send(Dst, Msg).
 
+
 -spec wait_for_sync(timeout()) -> ok | {error, any()}.
 wait_for_sync(Timeout) ->
     Mod = get_mod(),
     Mod:wait_for_sync(Timeout).
 
+
 -spec subscribe() -> ok.
 subscribe() ->
     subscribe(self()).
 
+
 -spec subscribe(dst()) -> ok.
 subscribe(Proc) ->
     Mod = get_mod(),
     Mod:subscribe(Proc).
 
+
 %%%===================================================================
 %%% Hooks
 %%%===================================================================
 set_ticktime() ->
     Ticktime = ejabberd_option:net_ticktime() div 1000,
     case net_kernel:set_net_ticktime(Ticktime) of
-	{ongoing_change_to, Time} when Time /= Ticktime ->
-	    ?ERROR_MSG("Failed to set new net_ticktime because "
-		       "the net kernel is busy changing it to the "
-		       "previously configured value. Please wait for "
-		       "~B seconds and retry", [Time]);
-	_ ->
-	    ok
+        {ongoing_change_to, Time} when Time /= Ticktime ->
+            ?ERROR_MSG("Failed to set new net_ticktime because "
+                       "the net kernel is busy changing it to the "
+                       "previously configured value. Please wait for "
+                       "~B seconds and retry",
+                       [Time]);
+        _ ->
+            ok
     end.
 
+
 %%%===================================================================
 %%% gen_server API
 %%%===================================================================
@@ -181,25 +216,29 @@ init([]) ->
     Nodes = ejabberd_option:cluster_nodes(),
     lists:foreach(fun(Node) ->
                           net_kernel:connect_node(Node)
-                  end, Nodes),
+                  end,
+                  Nodes),
     Mod = get_mod(),
     case Mod:init() of
-	ok ->
-	    ejabberd_hooks:add(config_reloaded, ?MODULE, set_ticktime, 50),
-	    Mod:subscribe(?MODULE),
-	    {ok, #state{}};
-	{error, Reason} ->
-	    {stop, Reason}
+        ok ->
+            ejabberd_hooks:add(config_reloaded, ?MODULE, set_ticktime, 50),
+            Mod:subscribe(?MODULE),
+            {ok, #state{}};
+        {error, Reason} ->
+            {stop, Reason}
     end.
 
+
 handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 handle_info({node_up, Node}, State) ->
     ?INFO_MSG("Node ~ts has joined", [Node]),
     {noreply, State};
@@ -210,12 +249,15 @@ handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 terminate(_Reason, _State) ->
     ejabberd_hooks:delete(config_reloaded, ?MODULE, set_ticktime, 50).
 
+
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
@@ -223,5 +265,6 @@ get_mod() ->
     Backend = ejabberd_option:cluster_backend(),
     list_to_existing_atom("ejabberd_cluster_" ++ atom_to_list(Backend)).
 
+
 rpc_timeout() ->
     ejabberd_option:rpc_timeout().

src/ejabberd_cluster_mnesia.erl

@@ -27,26 +27,37 @@
 -behaviour(ejabberd_cluster).
 
 %% API
--export([init/0, get_nodes/0, join/1, leave/1,
-	 get_known_nodes/0, node_id/0, get_node_by_id/1,
-	 send/2, wait_for_sync/1, subscribe/1]).
+-export([init/0,
+         get_nodes/0,
+         join/1,
+         leave/1,
+         get_known_nodes/0,
+         node_id/0,
+         get_node_by_id/1,
+         send/2,
+         wait_for_sync/1,
+         subscribe/1]).
 
 -include("logger.hrl").
 
+
 -spec init() -> ok.
 init() ->
     ok.
 
+
 -spec get_nodes() -> [node()].
 
 get_nodes() ->
     mnesia:system_info(running_db_nodes).
 
+
 -spec get_known_nodes() -> [node()].
 
 get_known_nodes() ->
-    lists:usort(mnesia:system_info(db_nodes)
-		++ mnesia:system_info(extra_db_nodes)).
+    lists:usort(mnesia:system_info(db_nodes) ++
+                mnesia:system_info(extra_db_nodes)).
+
 
 -spec join(node()) -> ok | {error, any()}.
 
@@ -72,12 +83,13 @@ join(Node) ->
             {error, {no_ping, Node}}
     end.
 
+
 -spec leave(node()) -> ok | {error, any()}.
 
 leave(Node) ->
     case {node(), net_adm:ping(Node)} of
         {Node, _} ->
-            Cluster = get_nodes()--[Node],
+            Cluster = get_nodes() -- [Node],
             leave(Cluster, Node);
         {_, pong} ->
             rpc:call(Node, ?MODULE, leave, [Node], 10000);
@@ -87,68 +99,81 @@ leave(Node) ->
                 {aborted, Reason} -> {error, Reason}
             end
     end.
+
+
 leave([], Node) ->
     {error, {no_cluster, Node}};
-leave([Master|_], Node) ->
+leave([Master | _], Node) ->
     application:stop(ejabberd),
     application:stop(mnesia),
     spawn(fun() ->
-              rpc:call(Master, mnesia, del_table_copy, [schema, Node]),
-              mnesia:delete_schema([node()]),
-              erlang:halt(0)
+                  rpc:call(Master, mnesia, del_table_copy, [schema, Node]),
+                  mnesia:delete_schema([node()]),
+                  erlang:halt(0)
           end),
     ok.
 
+
 -spec node_id() -> binary().
 node_id() ->
     integer_to_binary(erlang:phash2(node())).
 
+
 -spec get_node_by_id(binary()) -> node().
 get_node_by_id(Hash) ->
     try binary_to_integer(Hash) of
-	I -> match_node_id(I)
-    catch _:_ ->
-	    node()
+        I -> match_node_id(I)
+    catch
+        _:_ ->
+            node()
     end.
 
+
 -spec send({atom(), node()}, term()) -> boolean().
 send(Dst, Msg) ->
     case erlang:send(Dst, Msg, [nosuspend, noconnect]) of
-	ok -> true;
-	_ -> false
+        ok -> true;
+        _ -> false
     end.
 
+
 -spec wait_for_sync(timeout()) -> ok.
 wait_for_sync(Timeout) ->
     ?INFO_MSG("Waiting for Mnesia synchronization to complete", []),
     mnesia:wait_for_tables(mnesia:system_info(local_tables), Timeout),
     ok.
 
+
 -spec subscribe(_) -> ok.
 subscribe(_) ->
     ok.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
 
+
 replicate_database(Node) ->
     mnesia:change_table_copy_type(schema, node(), disc_copies),
     lists:foreach(
-        fun(Table) ->
-            Type = rpc:call(Node, mnesia, table_info, [Table, storage_type]),
-            mnesia:add_table_copy(Table, node(), Type)
-        end, mnesia:system_info(tables)--[schema]).
+      fun(Table) ->
+              Type = rpc:call(Node, mnesia, table_info, [Table, storage_type]),
+              mnesia:add_table_copy(Table, node(), Type)
+      end,
+      mnesia:system_info(tables) -- [schema]).
+
 
 -spec match_node_id(integer()) -> node().
 match_node_id(I) ->
     match_node_id(I, get_nodes()).
 
+
 -spec match_node_id(integer(), [node()]) -> node().
-match_node_id(I, [Node|Nodes]) ->
+match_node_id(I, [Node | Nodes]) ->
     case erlang:phash2(Node) of
-	I -> Node;
-	_ -> match_node_id(I, Nodes)
+        I -> Node;
+        _ -> match_node_id(I, Nodes)
     end;
 match_node_id(_I, []) ->
     node().

src/ejabberd_commands.erl

@@ -31,120 +31,139 @@
 -define(DEFAULT_VERSION, 1000000).
 
 -export([start_link/0,
-	 list_commands/0,
-	 list_commands/1,
-	 list_commands/2,
-	 get_command_format/1,
-	 get_command_format/2,
-	 get_command_format/3,
-	 get_command_definition/1,
-	 get_command_definition/2,
-	 get_tags_commands/0,
-	 get_tags_commands/1,
-	 register_commands/1,
-	 register_commands/2,
-	 register_commands/3,
-	 unregister_commands/1,
-	 unregister_commands/3,
-	 get_commands_spec/0,
-	 get_commands_definition/0,
-	 get_commands_definition/1,
-	 execute_command2/3,
-	 execute_command2/4]).
+         list_commands/0, list_commands/1, list_commands/2,
+         get_command_format/1, get_command_format/2, get_command_format/3,
+         get_command_definition/1, get_command_definition/2,
+         get_tags_commands/0, get_tags_commands/1,
+         register_commands/1, register_commands/2, register_commands/3,
+         unregister_commands/1, unregister_commands/3,
+         get_commands_spec/0,
+         get_commands_definition/0, get_commands_definition/1,
+         execute_command2/3, execute_command2/4]).
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2,
-	 terminate/2, code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 
 -include("ejabberd_commands.hrl").
 -include("logger.hrl").
+
 -include_lib("stdlib/include/ms_transform.hrl").
 
 -type auth() :: {binary(), binary(), binary() | {oauth, binary()}, boolean()} | map().
 
 -record(state, {}).
 
+
 get_commands_spec() ->
-    [
-        #ejabberd_commands{name = gen_html_doc_for_commands, tags = [documentation],
-                           desc = "Generates html documentation for ejabberd_commands",
-                           module = ejabberd_commands_doc, function = generate_html_output,
-                           args = [{file, binary}, {regexp, binary}, {examples, binary}],
-                           result = {res, rescode},
-                           args_desc = ["Path to file where generated "
-                                        "documentation should be stored",
-                                        "Regexp matching names of commands or modules "
-                                        "that will be included inside generated document",
-                                        "Comma separated list of languages (chosen from `java`, `perl`, `xmlrpc`, `json`) "
-                                        "that will have example invocation include in markdown document"],
-                           result_desc = "0 if command failed, 1 when succeeded",
-                           args_example = ["/home/me/docs/api.html", "mod_admin", "java,json"],
-                           result_example = ok},
-        #ejabberd_commands{name = gen_markdown_doc_for_commands, tags = [documentation],
-                           desc = "Generates markdown documentation for ejabberd_commands",
-                           module = ejabberd_commands_doc, function = generate_md_output,
-                           args = [{file, binary}, {regexp, binary}, {examples, binary}],
-                           result = {res, rescode},
-                           args_desc = ["Path to file where generated "
-                                        "documentation should be stored",
-                                        "Regexp matching names of commands or modules "
-                                        "that will be included inside generated document, "
-                                        "or `runtime` to get commands registered at runtime",
-                                        "Comma separated list of languages (chosen from `java`, `perl`, `xmlrpc`, `json`) "
-                                        "that will have example invocation include in markdown document"],
-                           result_desc = "0 if command failed, 1 when succeeded",
-                           args_example = ["/home/me/docs/api.html", "mod_admin", "java,json"],
-                           result_example = ok},
-        #ejabberd_commands{name = gen_markdown_doc_for_tags, tags = [documentation],
-                           desc = "Generates markdown documentation for ejabberd_commands",
-                           note = "added in 21.12",
-                           module = ejabberd_commands_doc, function = generate_tags_md,
-                           args = [{file, binary}],
-                           result = {res, rescode},
-                           args_desc = ["Path to file where generated "
-                                        "documentation should be stored"],
-                           result_desc = "0 if command failed, 1 when succeeded",
-                           args_example = ["/home/me/docs/tags.md"],
-                           result_example = ok}].
+    [#ejabberd_commands{
+       name = gen_html_doc_for_commands,
+       tags = [documentation],
+       desc = "Generates html documentation for ejabberd_commands",
+       module = ejabberd_commands_doc,
+       function = generate_html_output,
+       args = [{file, binary}, {regexp, binary}, {examples, binary}],
+       result = {res, rescode},
+       args_desc = ["Path to file where generated "
+                    "documentation should be stored",
+                    "Regexp matching names of commands or modules "
+                    "that will be included inside generated document",
+                    "Comma separated list of languages (chosen from `java`, `perl`, `xmlrpc`, `json`) "
+                    "that will have example invocation include in markdown document"],
+       result_desc = "0 if command failed, 1 when succeeded",
+       args_example = ["/home/me/docs/api.html", "mod_admin", "java,json"],
+       result_example = ok
+      },
+     #ejabberd_commands{
+       name = gen_markdown_doc_for_commands,
+       tags = [documentation],
+       desc = "Generates markdown documentation for ejabberd_commands",
+       module = ejabberd_commands_doc,
+       function = generate_md_output,
+       args = [{file, binary}, {regexp, binary}, {examples, binary}],
+       result = {res, rescode},
+       args_desc = ["Path to file where generated "
+                    "documentation should be stored",
+                    "Regexp matching names of commands or modules "
+                    "that will be included inside generated document, "
+                    "or `runtime` to get commands registered at runtime",
+                    "Comma separated list of languages (chosen from `java`, `perl`, `xmlrpc`, `json`) "
+                    "that will have example invocation include in markdown document"],
+       result_desc = "0 if command failed, 1 when succeeded",
+       args_example = ["/home/me/docs/api.html", "mod_admin", "java,json"],
+       result_example = ok
+      },
+     #ejabberd_commands{
+       name = gen_markdown_doc_for_tags,
+       tags = [documentation],
+       desc = "Generates markdown documentation for ejabberd_commands",
+       note = "added in 21.12",
+       module = ejabberd_commands_doc,
+       function = generate_tags_md,
+       args = [{file, binary}],
+       result = {res, rescode},
+       args_desc = ["Path to file where generated "
+                    "documentation should be stored"],
+       result_desc = "0 if command failed, 1 when succeeded",
+       args_example = ["/home/me/docs/tags.md"],
+       result_example = ok
+      }].
+
 
 start_link() ->
     gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
 
+
 init([]) ->
-    try mnesia:transform_table(ejabberd_commands, ignore,
-			       record_info(fields, ejabberd_commands))
-    catch exit:{aborted, {no_exists, _}} -> ok
+    try
+        mnesia:transform_table(ejabberd_commands,
+                               ignore,
+                               record_info(fields, ejabberd_commands))
+    catch
+        exit:{aborted, {no_exists, _}} -> ok
     end,
-    ejabberd_mnesia:create(?MODULE, ejabberd_commands,
-                        [{ram_copies, [node()]},
-                         {local_content, true},
-                         {attributes, record_info(fields, ejabberd_commands)},
-                         {type, bag}]),
+    ejabberd_mnesia:create(?MODULE,
+                           ejabberd_commands,
+                           [{ram_copies, [node()]},
+                            {local_content, true},
+                            {attributes, record_info(fields, ejabberd_commands)},
+                            {type, bag}]),
     register_commands(get_commands_spec()),
     {ok, #state{}}.
 
+
 handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 terminate(_Reason, _State) ->
     ok.
 
+
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 -spec register_commands([ejabberd_commands()]) -> ok.
 
 register_commands(Commands) ->
     register_commands(unknown, Commands).
 
+
 -spec register_commands(atom(), [ejabberd_commands()]) -> ok.
 
 register_commands(Definer, Commands) ->
@@ -164,6 +183,7 @@ register_commands(Definer, Commands) ->
     ejabberd_access_permissions:invalidate(),
     ok.
 
+
 -spec register_commands(binary(), atom(), [ejabberd_commands()]) -> ok.
 
 register_commands(Host, Definer, Commands) ->
@@ -174,11 +194,12 @@ register_commands(Host, Definer, Commands) ->
             ok
     end.
 
+
 register_command_prepare(Command, Definer) ->
     Tags1 = Command#ejabberd_commands.tags,
     Tags2 = case Command#ejabberd_commands.version of
                 0 -> Tags1;
-                Version -> Tags1 ++ [list_to_atom("v"++integer_to_list(Version))]
+                Version -> Tags1 ++ [list_to_atom("v" ++ integer_to_list(Version))]
             end,
     Command#ejabberd_commands{definer = Definer, tags = Tags2}.
 
@@ -188,11 +209,12 @@ register_command_prepare(Command, Definer) ->
 unregister_commands(Commands) ->
     lists:foreach(
       fun(Command) ->
-	      mnesia:dirty_delete(ejabberd_commands, Command#ejabberd_commands.name)
+              mnesia:dirty_delete(ejabberd_commands, Command#ejabberd_commands.name)
       end,
       Commands),
     ejabberd_access_permissions:invalidate().
 
+
 -spec unregister_commands(binary(), atom(), [ejabberd_commands()]) -> ok.
 
 unregister_commands(Host, Definer, Commands) ->
@@ -203,47 +225,57 @@ unregister_commands(Host, Definer, Commands) ->
             ok
     end.
 
+
 -spec list_commands() -> [{atom(), [aterm()], string()}].
 
 list_commands() ->
     list_commands(?DEFAULT_VERSION).
 
+
 -spec list_commands(integer()) -> [{atom(), [aterm()], string()}].
 
 list_commands(Version) ->
     Commands = get_commands_definition(Version),
-    [{Name, Args, Desc} || #ejabberd_commands{name = Name,
-                                              args = Args,
-                                              tags = Tags,
-                                              desc = Desc} <- Commands,
-                           not lists:member(internal, Tags)].
+    [ {Name, Args, Desc} || #ejabberd_commands{
+                              name = Name,
+                              args = Args,
+                              tags = Tags,
+                              desc = Desc
+                             } <- Commands,
+                            not lists:member(internal, Tags) ].
+
 
 -spec list_commands(integer(), map()) -> [{atom(), [aterm()], string()}].
 
 list_commands(Version, CallerInfo) ->
     lists:filter(
       fun({Name, _Args, _Desc}) ->
-        allow == ejabberd_access_permissions:can_access(Name, CallerInfo)
+              allow == ejabberd_access_permissions:can_access(Name, CallerInfo)
       end,
-      list_commands(Version)
-    ).
+      list_commands(Version)).
 
--spec get_command_format(atom()) -> {[aterm()], [{atom(),atom()}], rterm()}.
+
+-spec get_command_format(atom()) -> {[aterm()], [{atom(), atom()}], rterm()}.
 
 get_command_format(Name) ->
     get_command_format(Name, noauth, ?DEFAULT_VERSION).
+
+
 get_command_format(Name, Version) when is_integer(Version) ->
     get_command_format(Name, noauth, Version);
-get_command_format(Name, Auth)  ->
+get_command_format(Name, Auth) ->
     get_command_format(Name, Auth, ?DEFAULT_VERSION).
 
--spec get_command_format(atom(), noauth | admin | auth(), integer()) -> {[aterm()], [{atom(),atom()}], rterm()}.
+
+-spec get_command_format(atom(), noauth | admin | auth(), integer()) -> {[aterm()], [{atom(), atom()}], rterm()}.
 get_command_format(Name, Auth, Version) ->
     Admin = is_admin(Name, Auth, #{}),
-    #ejabberd_commands{args = Args,
-		       result = Result,
-		       args_rename = Rename,
-                       policy = Policy} =
+    #ejabberd_commands{
+      args = Args,
+      result = Result,
+      args_rename = Rename,
+      policy = Policy
+     } =
         get_command_definition(Name, Version),
     case Policy of
         user when Admin;
@@ -253,11 +285,13 @@ get_command_format(Name, Auth, Version) ->
             {Args, Rename, Result}
     end.
 
+
 -spec get_command_definition(atom()) -> ejabberd_commands().
 
 get_command_definition(Name) ->
     get_command_definition(Name, ?DEFAULT_VERSION).
 
+
 -spec get_command_definition(atom(), integer()) -> ejabberd_commands().
 
 get_command_definition(Name, Version) ->
@@ -270,13 +304,15 @@ get_command_definition(Name, Version) ->
                        when N == Name, V =< Version ->
                          {V, C}
                  end)))) of
-        [{_, Command} | _ ] -> Command;
+        [{_, Command} | _] -> Command;
         _E -> throw({error, unknown_command})
     end.
 
+
 get_commands_definition() ->
     get_commands_definition(?DEFAULT_VERSION).
 
+
 -spec get_commands_definition(integer()) -> [ejabberd_commands()].
 
 get_commands_definition(Version) ->
@@ -291,28 +327,30 @@ get_commands_definition(Version) ->
                 end)))),
     F = fun({_Name, _V, Command}, []) ->
                 [Command];
-           ({Name, _V, _Command}, [#ejabberd_commands{name=Name}|_T] = Acc) ->
+           ({Name, _V, _Command}, [#ejabberd_commands{name = Name} | _T] = Acc) ->
                 Acc;
            ({_Name, _V, Command}, Acc) -> [Command | Acc]
         end,
     lists:foldl(F, [], L).
 
+
 execute_command2(Name, Arguments, CallerInfo) ->
     execute_command2(Name, Arguments, CallerInfo, ?DEFAULT_VERSION).
 
+
 execute_command2(Name, Arguments, CallerInfo, Version) ->
     Command = get_command_definition(Name, Version),
     FrontedCalledInternal =
-        maps:get(caller_module, CallerInfo, none) /= ejabberd_web_admin
-        andalso lists:member(internal, Command#ejabberd_commands.tags),
+        maps:get(caller_module, CallerInfo, none) /= ejabberd_web_admin andalso
+        lists:member(internal, Command#ejabberd_commands.tags),
     case {ejabberd_access_permissions:can_access(Name, CallerInfo),
           FrontedCalledInternal} of
         {allow, false} ->
-	    do_execute_command(Command, Arguments);
+            do_execute_command(Command, Arguments);
         {_, true} ->
-	    throw({error, frontend_cannot_call_an_internal_command});
+            throw({error, frontend_cannot_call_an_internal_command});
         {deny, false} ->
-	    throw({error, access_rules_unauthorized})
+            throw({error, access_rules_unauthorized})
     end.
 
 
@@ -323,38 +361,40 @@ do_execute_command(Command, Arguments) ->
     ejabberd_hooks:run(api_call, [Module, Function, Arguments]),
     apply(Module, Function, Arguments).
 
+
 -spec get_tags_commands() -> [{string(), [string()]}].
 
 get_tags_commands() ->
     get_tags_commands(?DEFAULT_VERSION).
 
+
 -spec get_tags_commands(integer()) -> [{string(), [string()]}].
 
 get_tags_commands(Version) ->
-    CommandTags = [{Name, Tags} ||
-		      #ejabberd_commands{name = Name, tags = Tags}
-			  <- get_commands_definition(Version),
-                          not lists:member(internal, Tags)],
+    CommandTags = [ {Name, Tags}
+                    || #ejabberd_commands{name = Name, tags = Tags} <- get_commands_definition(Version),
+                       not lists:member(internal, Tags) ],
     Dict = lists:foldl(
-	     fun({CommandNameAtom, CTags}, D) ->
-		     CommandName = atom_to_list(CommandNameAtom),
-		     case CTags of
-			 [] ->
-			     orddict:append("untagged", CommandName, D);
-			 _ ->
-			     lists:foldl(
-			       fun(TagAtom, DD) ->
-				       Tag = atom_to_list(TagAtom),
-				       orddict:append(Tag, CommandName, DD)
-			       end,
-			       D,
-			       CTags)
-		     end
-	     end,
-	     orddict:new(),
-	     CommandTags),
+             fun({CommandNameAtom, CTags}, D) ->
+                     CommandName = atom_to_list(CommandNameAtom),
+                     case CTags of
+                         [] ->
+                             orddict:append("untagged", CommandName, D);
+                         _ ->
+                             lists:foldl(
+                               fun(TagAtom, DD) ->
+                                       Tag = atom_to_list(TagAtom),
+                                       orddict:append(Tag, CommandName, DD)
+                               end,
+                               D,
+                               CTags)
+                     end
+             end,
+             orddict:new(),
+             CommandTags),
     orddict:to_list(Dict).
 
+
 %% -----------------------------
 %% Access verification
 %% -----------------------------

src/ejabberd_commands_doc.erl

@@ -33,7 +33,7 @@
 -include("ejabberd_commands.hrl").
 
 -define(RAW(V), if HTMLOutput -> fxml:crypt(iolist_to_binary(V)); true -> iolist_to_binary(V) end).
--define(TAG_BIN(N), (atom_to_binary(N, latin1))/binary).
+-define(TAG_BIN(N), (atom_to_binary(N, latin1)) / binary).
 -define(TAG_STR(N), atom_to_list(N)).
 -define(TAG(N), if HTMLOutput -> [<<"<", ?TAG_BIN(N), "/>">>]; true -> md_tag(N, <<"">>) end).
 -define(TAG(N, V), if HTMLOutput -> [<<"<", ?TAG_BIN(N), ">">>, V, <<"</", ?TAG_BIN(N), ">">>]; true -> md_tag(N, V) end).
@@ -42,13 +42,13 @@
 -define(TAG_R(N, C, V), ?TAG(N, C, ?RAW(V))).
 -define(SPAN(N, V), ?TAG_R(span, ??N, V)).
 
--define(STR(A), ?SPAN(str,[<<"\"">>, A, <<"\"">>])).
--define(NUM(A), ?SPAN(num,integer_to_binary(A))).
--define(FIELD(A), ?SPAN(field,A)).
--define(ID(A), ?SPAN(id,A)).
--define(OP(A), ?SPAN(op,A)).
+-define(STR(A), ?SPAN(str, [<<"\"">>, A, <<"\"">>])).
+-define(NUM(A), ?SPAN(num, integer_to_binary(A))).
+-define(FIELD(A), ?SPAN(field, A)).
+-define(ID(A), ?SPAN(id, A)).
+-define(OP(A), ?SPAN(op, A)).
 -define(ARG(A), ?FIELD(atom_to_list(A))).
--define(KW(A), ?SPAN(kw,A)).
+-define(KW(A), ?SPAN(kw, A)).
 -define(BR, <<"\n">>).
 
 -define(ARG_S(A), ?STR(atom_to_list(A))).
@@ -63,12 +63,16 @@
 -define(STR_A(A), ?STR(atom_to_list(A))).
 -define(ID_A(A), ?ID(atom_to_list(A))).
 
+
 list_join_with([], _M) ->
     [];
-list_join_with([El|Tail], M) ->
+list_join_with([El | Tail], M) ->
     lists:reverse(lists:foldl(fun(E, Acc) ->
                                       [E, M | Acc]
-                              end, [El], Tail)).
+                              end,
+                              [El],
+                              Tail)).
+
 
 md_tag(dt, V) ->
     [<<"- ">>, V];
@@ -91,6 +95,7 @@ md_tag('div', V) ->
 md_tag(_, V) ->
     V.
 
+
 perl_gen({Name, integer}, Int, _Indent, HTMLOutput) ->
     [?ARG(Name), ?OP_L(" => "), ?NUM(Int)];
 perl_gen({Name, string}, Str, _Indent, HTMLOutput) ->
@@ -100,27 +105,55 @@ perl_gen({Name, binary}, Str, _Indent, HTMLOutput) ->
 perl_gen({Name, atom}, Atom, _Indent, HTMLOutput) ->
     [?ARG(Name), ?OP_L(" => "), ?STR_A(Atom)];
 perl_gen({Name, {tuple, Fields}}, Tuple, Indent, HTMLOutput) ->
-    Res = lists:map(fun({A,B})->perl_gen(A, B, Indent, HTMLOutput) end, lists:zip(Fields, tuple_to_list(Tuple))),
+    Res = lists:map(fun({A, B}) -> perl_gen(A, B, Indent, HTMLOutput) end, lists:zip(Fields, tuple_to_list(Tuple))),
     [?ARG(Name), ?OP_L(" => {"), list_join_with(Res, [?OP_L(", ")]), ?OP_L("}")];
 perl_gen({Name, {list, ElDesc}}, List, Indent, HTMLOutput) ->
     Res = lists:map(fun(E) -> [?OP_L("{"), perl_gen(ElDesc, E, Indent, HTMLOutput), ?OP_L("}")] end, List),
     [?ARG(Name), ?OP_L(" => ["), list_join_with(Res, [?OP_L(", ")]), ?OP_L("]")].
 
+
 perl_call(Name, ArgsDesc, Values, HTMLOutput) ->
     {Indent, Preamble} = if HTMLOutput -> {<<"">>, []}; true -> {<<"    ">>, <<"~~~ perl\n">>} end,
     [Preamble,
-     Indent, ?ID_L("XMLRPC::Lite"), ?OP_L("->"), ?ID_L("proxy"), ?OP_L("("), ?ID_L("$url"), ?OP_L(")->"),
-     ?ID_L("call"), ?OP_L("("), ?STR_A(Name), ?OP_L(", {"), ?BR, Indent, <<"  ">>,
-     list_join_with(lists:map(fun({A,B})->perl_gen(A, B, <<Indent/binary, "  ">>, HTMLOutput) end, lists:zip(ArgsDesc, Values)), [?OP_L(","), ?BR, Indent, <<"  ">>]),
-     ?BR, Indent, ?OP_L("})->"), ?ID_L("results"), ?OP_L("()")].
+     Indent,
+     ?ID_L("XMLRPC::Lite"),
+     ?OP_L("->"),
+     ?ID_L("proxy"),
+     ?OP_L("("),
+     ?ID_L("$url"),
+     ?OP_L(")->"),
+     ?ID_L("call"),
+     ?OP_L("("),
+     ?STR_A(Name),
+     ?OP_L(", {"),
+     ?BR,
+     Indent,
+     <<"  ">>,
+     list_join_with(lists:map(fun({A, B}) -> perl_gen(A, B, <<Indent/binary, "  ">>, HTMLOutput) end, lists:zip(ArgsDesc, Values)), [?OP_L(","), ?BR, Indent, <<"  ">>]),
+     ?BR,
+     Indent,
+     ?OP_L("})->"),
+     ?ID_L("results"),
+     ?OP_L("()")].
+
 
 java_gen_map(Vals, Indent, HTMLOutput) ->
     {Split, NL} = case Indent of
                       none -> {<<" ">>, <<" ">>};
                       _ -> {[?BR, <<"  ", Indent/binary>>], [?BR, Indent]}
                   end,
-    [?KW_L("new "), ?ID_L("HashMap"), ?OP_L("<"), ?ID_L("String"), ?OP_L(", "), ?ID_L("Object"),
-     ?OP_L(">() {{"), Split, list_join_with(Vals, Split), NL, ?OP_L("}}")].
+    [?KW_L("new "),
+     ?ID_L("HashMap"),
+     ?OP_L("<"),
+     ?ID_L("String"),
+     ?OP_L(", "),
+     ?ID_L("Object"),
+     ?OP_L(">() {{"),
+     Split,
+     list_join_with(Vals, Split),
+     NL,
+     ?OP_L("}}")].
+
 
 java_gen({Name, integer}, Int, _Indent, HTMLOutput) ->
     [?ID_L("put"), ?OP_L("("), ?STR_A(Name), ?OP_L(", "), ?KW_L("new "), ?ID_L("Integer"), ?OP_L("("), ?NUM(Int), ?OP_L("));")];
@@ -136,26 +169,74 @@ java_gen({Name, {tuple, Fields}}, Tuple, Indent, HTMLOutput) ->
     [?ID_L("put"), ?OP_L("("), ?STR_A(Name), ?OP_L(", "), java_gen_map(Res, Indent, HTMLOutput), ?OP_L(")")];
 java_gen({Name, {list, ElDesc}}, List, Indent, HTMLOutput) ->
     {NI, NI2, I} = case List of
-                    [_] -> {" ", " ", Indent};
-                    _ -> {[?BR, <<"    ", Indent/binary>>],
-                          [?BR, <<"  ", Indent/binary>>],
-                          <<"      ", Indent/binary>>}
-                end,
+                       [_] -> {" ", " ", Indent};
+                       _ ->
+                           {[?BR, <<"    ", Indent/binary>>],
+                            [?BR, <<"  ", Indent/binary>>],
+                            <<"      ", Indent/binary>>}
+                   end,
     Res = lists:map(fun(E) -> java_gen_map([java_gen(ElDesc, E, I, HTMLOutput)], none, HTMLOutput) end, List),
-    [?ID_L("put"), ?OP_L("("), ?STR_A(Name), ?OP_L(", "), ?KW_L("new "), ?ID_L("Object"), ?OP_L("[] {"), NI,
-     list_join_with(Res, [?OP_L(","), NI]), NI2, ?OP_L("});")].
+    [?ID_L("put"),
+     ?OP_L("("),
+     ?STR_A(Name),
+     ?OP_L(", "),
+     ?KW_L("new "),
+     ?ID_L("Object"),
+     ?OP_L("[] {"),
+     NI,
+     list_join_with(Res, [?OP_L(","), NI]),
+     NI2,
+     ?OP_L("});")].
+
 
 java_call(Name, ArgsDesc, Values, HTMLOutput) ->
     {Indent, Preamble} = if HTMLOutput -> {<<"">>, []}; true -> {<<"    ">>, <<"~~~ java\n">>} end,
     [Preamble,
-     Indent, ?ID_L("XmlRpcClientConfigImpl config"), ?OP_L(" = "), ?KW_L("new "), ?ID_L("XmlRpcClientConfigImpl"), ?OP_L("();"), ?BR,
-     Indent, ?ID_L("config"), ?OP_L("."), ?ID_L("setServerURL"), ?OP_L("("), ?ID_L("url"), ?OP_L(");"), ?BR, Indent, ?BR,
-     Indent, ?ID_L("XmlRpcClient client"), ?OP_L(" = "), ?KW_L("new "), ?ID_L("XmlRpcClient"), ?OP_L("();"), ?BR,
-     Indent, ?ID_L("client"), ?OP_L("."), ?ID_L("setConfig"), ?OP_L("("), ?ID_L("config"), ?OP_L(");"), ?BR, Indent, ?BR,
-     Indent, ?ID_L("client"), ?OP_L("."), ?ID_L("execute"), ?OP_L("("), ?STR_A(Name), ?OP_L(", "),
-     java_gen_map(lists:map(fun({A,B})->java_gen(A, B, Indent, HTMLOutput) end, lists:zip(ArgsDesc, Values)), Indent, HTMLOutput),
+     Indent,
+     ?ID_L("XmlRpcClientConfigImpl config"),
+     ?OP_L(" = "),
+     ?KW_L("new "),
+     ?ID_L("XmlRpcClientConfigImpl"),
+     ?OP_L("();"),
+     ?BR,
+     Indent,
+     ?ID_L("config"),
+     ?OP_L("."),
+     ?ID_L("setServerURL"),
+     ?OP_L("("),
+     ?ID_L("url"),
+     ?OP_L(");"),
+     ?BR,
+     Indent,
+     ?BR,
+     Indent,
+     ?ID_L("XmlRpcClient client"),
+     ?OP_L(" = "),
+     ?KW_L("new "),
+     ?ID_L("XmlRpcClient"),
+     ?OP_L("();"),
+     ?BR,
+     Indent,
+     ?ID_L("client"),
+     ?OP_L("."),
+     ?ID_L("setConfig"),
+     ?OP_L("("),
+     ?ID_L("config"),
+     ?OP_L(");"),
+     ?BR,
+     Indent,
+     ?BR,
+     Indent,
+     ?ID_L("client"),
+     ?OP_L("."),
+     ?ID_L("execute"),
+     ?OP_L("("),
+     ?STR_A(Name),
+     ?OP_L(", "),
+     java_gen_map(lists:map(fun({A, B}) -> java_gen(A, B, Indent, HTMLOutput) end, lists:zip(ArgsDesc, Values)), Indent, HTMLOutput),
      ?OP_L(");")].
 
+
 -define(XML_S(N, V), ?OP_L("<"), ?FIELD_L(??N), ?OP_L(">"), V).
 -define(XML_E(N), ?OP_L("</"), ?FIELD_L(??N), ?OP_L(">")).
 -define(XML(N, Indent, V), ?BR, Indent, ?XML_S(N, V), ?BR, Indent, ?XML_E(N)).
@@ -163,51 +244,75 @@ java_call(Name, ArgsDesc, Values, HTMLOutput) ->
 -define(XML_L(N, Indent, V), ?BR, Indent, ?XML_S(N, V), ?XML_E(N)).
 -define(XML_L(N, Indent, D, V), ?XML_L(N, [Indent, lists:duplicate(D, <<"  ">>)], V)).
 
+
 xml_gen({Name, integer}, Int, Indent, HTMLOutput) ->
-    [?XML(member, Indent,
-         [?XML_L(name, Indent, 1, ?ID_A(Name)),
-          ?XML(value, Indent, 1,
-               [?XML_L(integer, Indent, 2, ?ID(integer_to_binary(Int)))])])];
+    [?XML(member,
+          Indent,
+          [?XML_L(name, Indent, 1, ?ID_A(Name)),
+           ?XML(value,
+                Indent,
+                1,
+                [?XML_L(integer, Indent, 2, ?ID(integer_to_binary(Int)))])])];
 xml_gen({Name, string}, Str, Indent, HTMLOutput) ->
-    [?XML(member, Indent,
-         [?XML_L(name, Indent, 1, ?ID_A(Name)),
-          ?XML(value, Indent, 1,
-               [?XML_L(string, Indent, 2, ?ID(Str))])])];
+    [?XML(member,
+          Indent,
+          [?XML_L(name, Indent, 1, ?ID_A(Name)),
+           ?XML(value,
+                Indent,
+                1,
+                [?XML_L(string, Indent, 2, ?ID(Str))])])];
 xml_gen({Name, binary}, Str, Indent, HTMLOutput) ->
-    [?XML(member, Indent,
-         [?XML_L(name, Indent, 1, ?ID_A(Name)),
-          ?XML(value, Indent, 1,
-               [?XML_L(string, Indent, 2, ?ID(Str))])])];
+    [?XML(member,
+          Indent,
+          [?XML_L(name, Indent, 1, ?ID_A(Name)),
+           ?XML(value,
+                Indent,
+                1,
+                [?XML_L(string, Indent, 2, ?ID(Str))])])];
 xml_gen({Name, atom}, Atom, Indent, HTMLOutput) ->
-    [?XML(member, Indent,
-         [?XML_L(name, Indent, 1, ?ID_A(Name)),
-          ?XML(value, Indent, 1,
-               [?XML_L(string, Indent, 2, ?ID(atom_to_list(Atom)))])])];
+    [?XML(member,
+          Indent,
+          [?XML_L(name, Indent, 1, ?ID_A(Name)),
+           ?XML(value,
+                Indent,
+                1,
+                [?XML_L(string, Indent, 2, ?ID(atom_to_list(Atom)))])])];
 xml_gen({Name, {tuple, Fields}}, Tuple, Indent, HTMLOutput) ->
     NewIndent = <<"    ", Indent/binary>>,
     Res = lists:map(fun({A, B}) -> xml_gen(A, B, NewIndent, HTMLOutput) end, lists:zip(Fields, tuple_to_list(Tuple))),
-    [?XML(member, Indent,
-         [?XML_L(name, Indent, 1, ?ID_A(Name)),
-          ?XML(value, Indent, 1, [?XML(struct, NewIndent, Res)])])];
+    [?XML(member,
+          Indent,
+          [?XML_L(name, Indent, 1, ?ID_A(Name)),
+           ?XML(value, Indent, 1, [?XML(struct, NewIndent, Res)])])];
 xml_gen({Name, {list, ElDesc}}, List, Indent, HTMLOutput) ->
     Ind1 = <<"        ", Indent/binary>>,
     Ind2 = <<"    ", Ind1/binary>>,
     Res = lists:map(fun(E) -> [?XML(value, Ind1, [?XML(struct, Ind1, 1, xml_gen(ElDesc, E, Ind2, HTMLOutput))])] end, List),
-    [?XML(member, Indent,
-         [?XML_L(name, Indent, 1, ?ID_A(Name)),
-          ?XML(value, Indent, 1, [?XML(array, Indent, 2, [?XML(data, Indent, 3, Res)])])])].
+    [?XML(member,
+          Indent,
+          [?XML_L(name, Indent, 1, ?ID_A(Name)),
+           ?XML(value, Indent, 1, [?XML(array, Indent, 2, [?XML(data, Indent, 3, Res)])])])].
+
 
 xml_call(Name, ArgsDesc, Values, HTMLOutput) ->
     {Indent, Preamble} = if HTMLOutput -> {<<"">>, []}; true -> {<<"    ">>, <<"~~~ xml">>} end,
     Res = lists:map(fun({A, B}) -> xml_gen(A, B, <<Indent/binary, "          ">>, HTMLOutput) end, lists:zip(ArgsDesc, Values)),
     [Preamble,
-     ?XML(methodCall, Indent,
+     ?XML(methodCall,
+          Indent,
           [?XML_L(methodName, Indent, 1, ?ID_A(Name)),
-           ?XML(params, Indent, 1,
-                [?XML(param, Indent, 2,
-                      [?XML(value, Indent, 3,
+           ?XML(params,
+                Indent,
+                1,
+                [?XML(param,
+                      Indent,
+                      2,
+                      [?XML(value,
+                            Indent,
+                            3,
                             [?XML(struct, Indent, 4, Res)])])])])].
 
+
 %    [?ARG_S(Name), ?OP_L(": "), ?STR(Str)];
 json_gen({_Name, integer}, Int, _Indent, HTMLOutput) ->
     [?NUM(Int)];
@@ -220,15 +325,22 @@ json_gen({_Name, atom}, Atom, _Indent, HTMLOutput) ->
 json_gen({_Name, rescode}, Val, _Indent, HTMLOutput) ->
     [?ID_A(Val == ok orelse Val == true)];
 json_gen({_Name, restuple}, {Val, Str}, _Indent, HTMLOutput) ->
-    [?OP_L("{"), ?STR_L("res"), ?OP_L(": "), ?ID_A(Val == ok orelse Val == true), ?OP_L(", "),
-     ?STR_L("text"), ?OP_L(": "), ?STR(Str), ?OP_L("}")];
+    [?OP_L("{"),
+     ?STR_L("res"),
+     ?OP_L(": "),
+     ?ID_A(Val == ok orelse Val == true),
+     ?OP_L(", "),
+     ?STR_L("text"),
+     ?OP_L(": "),
+     ?STR(Str),
+     ?OP_L("}")];
 json_gen({_Name, {list, {_, {tuple, [{_, atom}, ValFmt]}}}}, List, Indent, HTMLOutput) ->
     Indent2 = <<"  ", Indent/binary>>,
-    Res = lists:map(fun({N, V})->[?STR_A(N), ?OP_L(": "), json_gen(ValFmt, V, Indent2, HTMLOutput)] end, List),
+    Res = lists:map(fun({N, V}) -> [?STR_A(N), ?OP_L(": "), json_gen(ValFmt, V, Indent2, HTMLOutput)] end, List),
     [?OP_L("{"), ?BR, Indent2, list_join_with(Res, [?OP_L(","), ?BR, Indent2]), ?BR, Indent, ?OP_L("}")];
 json_gen({_Name, {tuple, Fields}}, Tuple, Indent, HTMLOutput) ->
     Indent2 = <<"  ", Indent/binary>>,
-    Res = lists:map(fun({{N, _} = A, B})->[?STR_A(N), ?OP_L(": "), json_gen(A, B, Indent2, HTMLOutput)] end,
+    Res = lists:map(fun({{N, _} = A, B}) -> [?STR_A(N), ?OP_L(": "), json_gen(A, B, Indent2, HTMLOutput)] end,
                     lists:zip(Fields, tuple_to_list(Tuple))),
     [?OP_L("{"), ?BR, Indent2, list_join_with(Res, [?OP_L(","), ?BR, Indent2]), ?BR, Indent, ?OP_L("}")];
 json_gen({_Name, {list, ElDesc}}, List, Indent, HTMLOutput) ->
@@ -236,6 +348,7 @@ json_gen({_Name, {list, ElDesc}}, List, Indent, HTMLOutput) ->
     Res = lists:map(fun(E) -> json_gen(ElDesc, E, Indent2, HTMLOutput) end, List),
     [?OP_L("["), ?BR, Indent2, list_join_with(Res, [?OP_L(","), ?BR, Indent2]), ?BR, Indent, ?OP_L("]")].
 
+
 json_call(Name, ArgsDesc, Values, ResultDesc, Result, HTMLOutput) ->
     {Indent, Preamble} = if HTMLOutput -> {<<"">>, []}; true -> {<<"">>, <<"~~~ json\n">>} end,
     {Code, ResultStr} = case {ResultDesc, Result} of
@@ -255,23 +368,40 @@ json_call(Name, ArgsDesc, Values, ResultDesc, Result, HTMLOutput) ->
                   500 -> <<" 500 Internal Server Error">>
               end,
     [Preamble,
-     Indent, ?ID_L("POST /api/"), ?ID_A(Name), ?BR,
-     Indent, ?OP_L("{"), ?BR, Indent, <<"  ">>,
-     list_join_with(lists:map(fun({{N,_}=A,B})->[?STR_A(N), ?OP_L(": "), json_gen(A, B, <<Indent/binary, "  ">>, HTMLOutput)] end,
-                              lists:zip(ArgsDesc, Values)), [?OP_L(","), ?BR, Indent, <<"  ">>]),
-     ?BR, Indent, ?OP_L("}"), ?BR, Indent, ?BR, Indent,
-     ?ID_L("HTTP/1.1"), ?ID(CodeStr), ?BR, Indent,
-     ResultStr
-    ].
+     Indent,
+     ?ID_L("POST /api/"),
+     ?ID_A(Name),
+     ?BR,
+     Indent,
+     ?OP_L("{"),
+     ?BR,
+     Indent,
+     <<"  ">>,
+     list_join_with(lists:map(fun({{N, _} = A, B}) -> [?STR_A(N), ?OP_L(": "), json_gen(A, B, <<Indent/binary, "  ">>, HTMLOutput)] end,
+                              lists:zip(ArgsDesc, Values)),
+                    [?OP_L(","), ?BR, Indent, <<"  ">>]),
+     ?BR,
+     Indent,
+     ?OP_L("}"),
+     ?BR,
+     Indent,
+     ?BR,
+     Indent,
+     ?ID_L("HTTP/1.1"),
+     ?ID(CodeStr),
+     ?BR,
+     Indent,
+     ResultStr].
+
 
 generate_example_input({_Name, integer}, {LastStr, LastNum}) ->
-    {LastNum+1, {LastStr, LastNum+1}};
+    {LastNum + 1, {LastStr, LastNum + 1}};
 generate_example_input({_Name, string}, {LastStr, LastNum}) ->
-    {string:chars(LastStr+1, 5), {LastStr+1, LastNum}};
+    {string:chars(LastStr + 1, 5), {LastStr + 1, LastNum}};
 generate_example_input({_Name, binary}, {LastStr, LastNum}) ->
-    {iolist_to_binary(string:chars(LastStr+1, 5)), {LastStr+1, LastNum}};
+    {iolist_to_binary(string:chars(LastStr + 1, 5)), {LastStr + 1, LastNum}};
 generate_example_input({_Name, atom}, {LastStr, LastNum}) ->
-    {list_to_atom(string:chars(LastStr+1, 5)), {LastStr+1, LastNum}};
+    {list_to_atom(string:chars(LastStr + 1, 5)), {LastStr + 1, LastNum}};
 generate_example_input({_Name, rescode}, {LastStr, LastNum}) ->
     {ok, {LastStr, LastNum}};
 generate_example_input({_Name, restuple}, {LastStr, LastNum}) ->
@@ -280,68 +410,84 @@ generate_example_input({_Name, {tuple, Fields}}, Data) ->
     {R, D} = lists:foldl(fun(Field, {Res2, Data2}) ->
                                  {Res3, Data3} = generate_example_input(Field, Data2),
                                  {[Res3 | Res2], Data3}
-                         end, {[], Data}, Fields),
+                         end,
+                         {[], Data},
+                         Fields),
     {list_to_tuple(lists:reverse(R)), D};
 generate_example_input({_Name, {list, Desc}}, Data) ->
     {R1, D1} = generate_example_input(Desc, Data),
     {R2, D2} = generate_example_input(Desc, D1),
     {[R1, R2], D2}.
 
-gen_calls(#ejabberd_commands{args_example=none, args=ArgsDesc} = C, HTMLOutput, Langs) ->
+
+gen_calls(#ejabberd_commands{args_example = none, args = ArgsDesc} = C, HTMLOutput, Langs) ->
     {R, _} = lists:foldl(fun(Arg, {Res, Data}) ->
                                  {Res3, Data3} = generate_example_input(Arg, Data),
                                  {[Res3 | Res], Data3}
-                         end, {[], {$a-1, 0}}, ArgsDesc),
-    gen_calls(C#ejabberd_commands{args_example=lists:reverse(R)}, HTMLOutput, Langs);
-gen_calls(#ejabberd_commands{result_example=none, result=ResultDesc} = C, HTMLOutput, Langs) ->
-    {R, _} = generate_example_input(ResultDesc, {$a-1, 0}),
-    gen_calls(C#ejabberd_commands{result_example=R}, HTMLOutput, Langs);
-gen_calls(#ejabberd_commands{args_example=Values, args=ArgsDesc,
-                             result_example=Result, result=ResultDesc,
-                             name=Name}, HTMLOutput, Langs) ->
+                         end,
+                         {[], {$a - 1, 0}},
+                         ArgsDesc),
+    gen_calls(C#ejabberd_commands{args_example = lists:reverse(R)}, HTMLOutput, Langs);
+gen_calls(#ejabberd_commands{result_example = none, result = ResultDesc} = C, HTMLOutput, Langs) ->
+    {R, _} = generate_example_input(ResultDesc, {$a - 1, 0}),
+    gen_calls(C#ejabberd_commands{result_example = R}, HTMLOutput, Langs);
+gen_calls(#ejabberd_commands{
+            args_example = Values,
+            args = ArgsDesc,
+            result_example = Result,
+            result = ResultDesc,
+            name = Name
+           },
+          HTMLOutput,
+          Langs) ->
     Perl = perl_call(Name, ArgsDesc, Values, HTMLOutput),
     Java = java_call(Name, ArgsDesc, Values, HTMLOutput),
     XML = xml_call(Name, ArgsDesc, Values, HTMLOutput),
     JSON = json_call(Name, ArgsDesc, Values, ResultDesc, Result, HTMLOutput),
-    if HTMLOutput ->
-            [?TAG(ul, "code-samples-names",
+    if
+        HTMLOutput ->
+            [?TAG(ul,
+                  "code-samples-names",
                   [case lists:member(<<"java">>, Langs) of true -> ?TAG(li, <<"Java">>); _ -> [] end,
                    case lists:member(<<"perl">>, Langs) of true -> ?TAG(li, <<"Perl">>); _ -> [] end,
                    case lists:member(<<"xmlrpc">>, Langs) of true -> ?TAG(li, <<"XML">>); _ -> [] end,
                    case lists:member(<<"json">>, Langs) of true -> ?TAG(li, <<"JSON">>); _ -> [] end]),
-             ?TAG(ul, "code-samples",
+             ?TAG(ul,
+                  "code-samples",
                   [case lists:member(<<"java">>, Langs) of true -> ?TAG(li, ?TAG(pre, Java)); _ -> [] end,
                    case lists:member(<<"perl">>, Langs) of true -> ?TAG(li, ?TAG(pre, Perl)); _ -> [] end,
                    case lists:member(<<"xmlrpc">>, Langs) of true -> ?TAG(li, ?TAG(pre, XML)); _ -> [] end,
                    case lists:member(<<"json">>, Langs) of true -> ?TAG(li, ?TAG(pre, JSON)); _ -> [] end])];
-       true ->
-           case Langs of
-               Val when length(Val) == 0 orelse length(Val) == 1 ->
-                   [case lists:member(<<"java">>, Langs) of true -> [<<"\n">>, ?TAG(pre, Java), <<"~~~\n">>]; _ -> [] end,
-                    case lists:member(<<"perl">>, Langs) of true -> [<<"\n">>, ?TAG(pre, Perl), <<"~~~\n">>]; _ -> [] end,
-                    case lists:member(<<"xmlrpc">>, Langs) of true -> [<<"\n">>, ?TAG(pre, XML), <<"~~~\n">>]; _ -> [] end,
-                    case lists:member(<<"json">>, Langs) of true -> [<<"\n">>, ?TAG(pre, JSON), <<"~~~\n">>]; _ -> [] end,
-                    <<"\n\n">>];
-               _ ->
-                   [<<"\n">>, case lists:member(<<"java">>, Langs) of true -> <<"* Java\n">>; _ -> [] end,
-                    case lists:member(<<"perl">>, Langs) of true -> <<"* Perl\n">>; _ -> [] end,
-                    case lists:member(<<"xmlrpc">>, Langs) of true -> <<"* XmlRPC\n">>; _ -> [] end,
-                    case lists:member(<<"json">>, Langs) of true -> <<"* JSON\n">>; _ -> [] end,
-                    <<"{: .code-samples-labels}\n">>,
-                    case lists:member(<<"java">>, Langs) of true -> [<<"\n* ">>, ?TAG(pre, Java), <<"~~~\n">>]; _ -> [] end,
-                    case lists:member(<<"perl">>, Langs) of true -> [<<"\n* ">>, ?TAG(pre, Perl), <<"~~~\n">>]; _ -> [] end,
-                    case lists:member(<<"xmlrpc">>, Langs) of true -> [<<"\n* ">>, ?TAG(pre, XML), <<"~~~\n">>]; _ -> [] end,
-                    case lists:member(<<"json">>, Langs) of true -> [<<"\n* ">>, ?TAG(pre, JSON), <<"~~~\n">>]; _ -> [] end,
-                    <<"{: .code-samples-tabs}\n\n">>]
-           end
+        true ->
+            case Langs of
+                Val when length(Val) == 0 orelse length(Val) == 1 ->
+                    [case lists:member(<<"java">>, Langs) of true -> [<<"\n">>, ?TAG(pre, Java), <<"~~~\n">>]; _ -> [] end,
+                     case lists:member(<<"perl">>, Langs) of true -> [<<"\n">>, ?TAG(pre, Perl), <<"~~~\n">>]; _ -> [] end,
+                     case lists:member(<<"xmlrpc">>, Langs) of true -> [<<"\n">>, ?TAG(pre, XML), <<"~~~\n">>]; _ -> [] end,
+                     case lists:member(<<"json">>, Langs) of true -> [<<"\n">>, ?TAG(pre, JSON), <<"~~~\n">>]; _ -> [] end,
+                     <<"\n\n">>];
+                _ ->
+                    [<<"\n">>,
+                     case lists:member(<<"java">>, Langs) of true -> <<"* Java\n">>; _ -> [] end,
+                     case lists:member(<<"perl">>, Langs) of true -> <<"* Perl\n">>; _ -> [] end,
+                     case lists:member(<<"xmlrpc">>, Langs) of true -> <<"* XmlRPC\n">>; _ -> [] end,
+                     case lists:member(<<"json">>, Langs) of true -> <<"* JSON\n">>; _ -> [] end,
+                     <<"{: .code-samples-labels}\n">>,
+                     case lists:member(<<"java">>, Langs) of true -> [<<"\n* ">>, ?TAG(pre, Java), <<"~~~\n">>]; _ -> [] end,
+                     case lists:member(<<"perl">>, Langs) of true -> [<<"\n* ">>, ?TAG(pre, Perl), <<"~~~\n">>]; _ -> [] end,
+                     case lists:member(<<"xmlrpc">>, Langs) of true -> [<<"\n* ">>, ?TAG(pre, XML), <<"~~~\n">>]; _ -> [] end,
+                     case lists:member(<<"json">>, Langs) of true -> [<<"\n* ">>, ?TAG(pre, JSON), <<"~~~\n">>]; _ -> [] end,
+                     <<"{: .code-samples-tabs}\n\n">>]
+            end
     end.
 
+
 format_type({list, {_, {tuple, Els}}}) ->
     io_lib:format("[~ts]", [format_type({tuple, Els})]);
 format_type({list, El}) ->
     io_lib:format("[~ts]", [format_type(El)]);
 format_type({tuple, Els}) ->
-    Args = [format_type(El) || El <- Els],
+    Args = [ format_type(El) || El <- Els ],
     io_lib:format("{~ts}", [string:join(Args, ", ")]);
 format_type({Name, Type}) ->
     io_lib:format("~ts::~ts", [Name, format_type(Type)]);
@@ -352,68 +498,94 @@ format_type(atom) ->
 format_type(Type) ->
     io_lib:format("~p", [Type]).
 
+
 gen_param(Name, Type, undefined, HTMLOutput) ->
     [?TAG(li, [?TAG_R(strong, atom_to_list(Name)), <<" :: ">>, ?RAW(format_type(Type))])];
 gen_param(Name, Type, Desc, HTMLOutput) ->
     [?TAG(dt, [?TAG_R(strong, atom_to_list(Name)), <<" :: ">>, ?RAW(format_type(Type))]),
      ?TAG(dd, ?RAW(Desc))].
 
+
 make_tags(HTMLOutput) ->
     TagsList = ejabberd_commands:get_tags_commands(1000000),
     lists:map(fun(T) -> gen_tags(T, HTMLOutput) end, TagsList).
 
--dialyzer({no_match, gen_tags/2}).
-gen_tags({TagName, Commands}, HTMLOutput) ->
-    [?TAG(h1, TagName) | [?TAG(p, ?RAW("* _`"++C++"`_")) || C <- Commands]].
 
-gen_doc(#ejabberd_commands{name=Name, tags=Tags, desc=Desc, longdesc=LongDesc,
-                           args=Args, args_desc=ArgsDesc, note=Note, definer=Definer,
-                           result=Result, result_desc=ResultDesc}=Cmd, HTMLOutput, Langs) ->
+-dialyzer({no_match, gen_tags/2}).
+
+
+gen_tags({TagName, Commands}, HTMLOutput) ->
+    [?TAG(h1, TagName) | [ ?TAG(p, ?RAW("* _`" ++ C ++ "`_")) || C <- Commands ]].
+
+
+gen_doc(#ejabberd_commands{
+          name = Name,
+          tags = Tags,
+          desc = Desc,
+          longdesc = LongDesc,
+          args = Args,
+          args_desc = ArgsDesc,
+          note = Note,
+          definer = Definer,
+          result = Result,
+          result_desc = ResultDesc
+         } = Cmd,
+        HTMLOutput,
+        Langs) ->
     try
         ArgsText = case ArgsDesc of
                        none ->
-                           [?TAG(ul, "args-list", [gen_param(AName, Type, undefined, HTMLOutput)
-                                                   || {AName, Type} <- Args])];
+                           [?TAG(ul,
+                                 "args-list",
+                                 [ gen_param(AName, Type, undefined, HTMLOutput)
+                                   || {AName, Type} <- Args ])];
                        _ ->
-                           [?TAG(dl, "args-list", [gen_param(AName, Type, ADesc, HTMLOutput)
-                                                   || {{AName, Type}, ADesc} <- lists:zip(Args, ArgsDesc)])]
+                           [?TAG(dl,
+                                 "args-list",
+                                 [ gen_param(AName, Type, ADesc, HTMLOutput)
+                                   || {{AName, Type}, ADesc} <- lists:zip(Args, ArgsDesc) ])]
                    end,
         ResultText = case Result of
-                       {res,rescode} ->
-                           [?TAG(dl, [gen_param(res, integer,
-                                                "Status code (`0` on success, `1` otherwise)",
-                                                HTMLOutput)])];
-                       {res,restuple} ->
-                           [?TAG(dl, [gen_param(res, string,
-                                                "Raw result string",
-                                                HTMLOutput)])];
-                       {RName, Type} ->
-                           case ResultDesc of
-                             none ->
-                                 [?TAG(ul, [gen_param(RName, Type, undefined, HTMLOutput)])];
-                             _ ->
-                                 [?TAG(dl, [gen_param(RName, Type, ResultDesc, HTMLOutput)])]
-                           end
+                         {res, rescode} ->
+                             [?TAG(dl,
+                                   [gen_param(res,
+                                              integer,
+                                              "Status code (`0` on success, `1` otherwise)",
+                                              HTMLOutput)])];
+                         {res, restuple} ->
+                             [?TAG(dl,
+                                   [gen_param(res,
+                                              string,
+                                              "Raw result string",
+                                              HTMLOutput)])];
+                         {RName, Type} ->
+                             case ResultDesc of
+                                 none ->
+                                     [?TAG(ul, [gen_param(RName, Type, undefined, HTMLOutput)])];
+                                 _ ->
+                                     [?TAG(dl, [gen_param(RName, Type, ResultDesc, HTMLOutput)])]
+                             end
                      end,
-        TagsText = ?RAW(string:join(["_`"++atom_to_list(Tag)++"`_" || Tag <- Tags], ", ")),
+        TagsText = ?RAW(string:join([ "_`" ++ atom_to_list(Tag) ++ "`_" || Tag <- Tags ], ", ")),
         IsDefinerMod = case Definer of
-                         unknown -> false;
-                         _ -> lists:member(gen_mod, lists:flatten(proplists:get_all_values(behaviour, Definer:module_info(attributes))))
-                     end,
+                           unknown -> false;
+                           _ -> lists:member(gen_mod, lists:flatten(proplists:get_all_values(behaviour, Definer:module_info(attributes))))
+                       end,
         ModuleText = case IsDefinerMod of
-                       true ->
-                           [?TAG(h2, <<"Module:">>), ?TAG(p, ?RAW("_`"++atom_to_list(Definer)++"`_"))];
-                       false ->
-                           []
-                   end,
+                         true ->
+                             [?TAG(h2, <<"Module:">>), ?TAG(p, ?RAW("_`" ++ atom_to_list(Definer) ++ "`_"))];
+                         false ->
+                             []
+                     end,
         NoteEl = case Note of
-                       "" -> [];
-                       _ -> ?TAG('div', "note-down", ?RAW(Note))
-                   end,
+                     "" -> [];
+                     _ -> ?TAG('div', "note-down", ?RAW(Note))
+                 end,
         {NotePre, NotePost} =
-        if HTMLOutput -> {[], NoteEl};
-            true -> {NoteEl, []}
-        end,
+            if
+                HTMLOutput -> {[], NoteEl};
+                true -> {NoteEl, []}
+            end,
 
         [?TAG(h1, make_command_name(Name, Note)),
          NotePre,
@@ -423,18 +595,21 @@ gen_doc(#ejabberd_commands{name=Name, tags=Tags, desc=Desc, longdesc=LongDesc,
              _ -> ?TAG(p, ?RAW(LongDesc))
          end,
          NotePost,
-         ?TAG(h2, <<"Arguments:">>), ArgsText,
-         ?TAG(h2, <<"Result:">>), ResultText,
-         ?TAG(h2, <<"Tags:">>), ?TAG(p, TagsText)]
-         ++ ModuleText ++ [
-         ?TAG(h2, <<"Examples:">>), gen_calls(Cmd, HTMLOutput, Langs)]
+         ?TAG(h2, <<"Arguments:">>),
+         ArgsText,
+         ?TAG(h2, <<"Result:">>),
+         ResultText,
+         ?TAG(h2, <<"Tags:">>),
+         ?TAG(p, TagsText)] ++
+        ModuleText ++ [?TAG(h2, <<"Examples:">>), gen_calls(Cmd, HTMLOutput, Langs)]
     catch
-	_:Ex ->
-	    throw(iolist_to_binary(io_lib:format(
-				     <<"Error when generating documentation for command '~p': ~p">>,
-				     [Name, Ex])))
+        _:Ex ->
+            throw(iolist_to_binary(io_lib:format(
+                                     <<"Error when generating documentation for command '~p': ~p">>,
+                                     [Name, Ex])))
     end.
 
+
 get_version_mark("") ->
     "";
 get_version_mark(Note) ->
@@ -445,33 +620,39 @@ get_version_mark(Note) ->
         _ -> " 🟤"
     end.
 
+
 make_command_name(Name, Note) ->
     atom_to_list(Name) ++ get_version_mark(Note).
 
+
 find_commands_definitions() ->
     lists:flatmap(
-        fun(Mod) ->
-            code:ensure_loaded(Mod),
-            Cs = case erlang:function_exported(Mod, get_commands_spec, 0) of
-                     true ->
-                         apply(Mod, get_commands_spec, []);
-                     _ ->
-                         []
-                 end,
-            [C#ejabberd_commands{definer = Mod} || C <- Cs]
-        end, ejabberd_config:beams(all)).
+      fun(Mod) ->
+              code:ensure_loaded(Mod),
+              Cs = case erlang:function_exported(Mod, get_commands_spec, 0) of
+                       true ->
+                           apply(Mod, get_commands_spec, []);
+                       _ ->
+                           []
+                   end,
+              [ C#ejabberd_commands{definer = Mod} || C <- Cs ]
+      end,
+      ejabberd_config:beams(all)).
+
 
 generate_html_output(File, RegExp, Languages) ->
     Cmds = find_commands_definitions(),
     {ok, RE} = re:compile(RegExp),
-    Cmds2 = lists:filter(fun(#ejabberd_commands{name=Name, module=Module}) ->
+    Cmds2 = lists:filter(fun(#ejabberd_commands{name = Name, module = Module}) ->
                                  re:run(atom_to_list(Name), RE, [{capture, none}]) == match orelse
-                                     re:run(atom_to_list(Module), RE, [{capture, none}]) == match
-                         end, Cmds),
-    Cmds3 = lists:sort(fun(#ejabberd_commands{name=N1}, #ejabberd_commands{name=N2}) ->
+                                 re:run(atom_to_list(Module), RE, [{capture, none}]) == match
+                         end,
+                         Cmds),
+    Cmds3 = lists:sort(fun(#ejabberd_commands{name = N1}, #ejabberd_commands{name = N2}) ->
                                N1 =< N2
-                       end, Cmds2),
-    Cmds4 = [maybe_add_policy_arguments(Cmd) || Cmd <- Cmds3],
+                       end,
+                       Cmds2),
+    Cmds4 = [ maybe_add_policy_arguments(Cmd) || Cmd <- Cmds3 ],
     Langs = binary:split(Languages, <<",">>, [global]),
     Out = lists:map(fun(C) -> gen_doc(C, true, Langs) end, Cmds4),
     {ok, Fh} = file:open(File, [write]),
@@ -479,52 +660,64 @@ generate_html_output(File, RegExp, Languages) ->
     file:close(Fh),
     ok.
 
-maybe_add_policy_arguments(#ejabberd_commands{args=Args1, policy=user}=Cmd) ->
+
+maybe_add_policy_arguments(#ejabberd_commands{args = Args1, policy = user} = Cmd) ->
     Args2 = [{user, binary}, {host, binary} | Args1],
     Cmd#ejabberd_commands{args = Args2};
 maybe_add_policy_arguments(Cmd) ->
     Cmd.
 
+
 generate_md_output(File, <<"runtime">>, Languages) ->
     Cmds = lists:map(fun({N, _, _}) ->
                              ejabberd_commands:get_command_definition(N)
-                     end, ejabberd_commands:list_commands()),
+                     end,
+                     ejabberd_commands:list_commands()),
     generate_md_output(File, <<".">>, Languages, Cmds);
 generate_md_output(File, RegExp, Languages) ->
     Cmds = find_commands_definitions(),
     generate_md_output(File, RegExp, Languages, Cmds).
 
+
 generate_md_output(File, RegExp, Languages, Cmds) ->
     {ok, RE} = re:compile(RegExp),
-    Cmds2 = lists:filter(fun(#ejabberd_commands{name=Name, module=Module}) ->
+    Cmds2 = lists:filter(fun(#ejabberd_commands{name = Name, module = Module}) ->
                                  re:run(atom_to_list(Name), RE, [{capture, none}]) == match orelse
-                                     re:run(atom_to_list(Module), RE, [{capture, none}]) == match
-                         end, Cmds),
-    Cmds3 = lists:sort(fun(#ejabberd_commands{name=N1}, #ejabberd_commands{name=N2}) ->
+                                 re:run(atom_to_list(Module), RE, [{capture, none}]) == match
+                         end,
+                         Cmds),
+    Cmds3 = lists:sort(fun(#ejabberd_commands{name = N1}, #ejabberd_commands{name = N2}) ->
                                N1 =< N2
-                       end, Cmds2),
-    Cmds4 = [maybe_add_policy_arguments(Cmd) || Cmd <- Cmds3],
+                       end,
+                       Cmds2),
+    Cmds4 = [ maybe_add_policy_arguments(Cmd) || Cmd <- Cmds3 ],
     Langs = binary:split(Languages, <<",">>, [global]),
     Version = binary_to_list(ejabberd_config:version()),
     Header = ["# API Reference\n\n"
-            "This section describes API commands of ejabberd ", Version, ". "
-            "The commands that changed in this version are marked with 🟤.\n\n"],
+              "This section describes API commands of ejabberd ",
+              Version,
+              ". "
+              "The commands that changed in this version are marked with 🟤.\n\n"],
     Out = lists:map(fun(C) -> gen_doc(C, false, Langs) end, Cmds4),
     {ok, Fh} = file:open(File, [write, {encoding, utf8}]),
     io:format(Fh, "~ts~ts", [Header, Out]),
     file:close(Fh),
     ok.
 
+
 generate_tags_md(File) ->
     Version = binary_to_list(ejabberd_config:version()),
     Header = ["# API Tags\n\n"
-            "This section enumerates the API tags of ejabberd ", Version, ". \n\n"],
+              "This section enumerates the API tags of ejabberd ",
+              Version,
+              ". \n\n"],
     Tags = make_tags(false),
     {ok, Fh} = file:open(File, [write, {encoding, utf8}]),
     io:format(Fh, "~ts~ts", [Header, Tags]),
     file:close(Fh),
     ok.
 
+
 html_pre() ->
     "<!DOCTYPE>
 <html>
@@ -650,8 +843,9 @@ html_pre() ->
       }
     </script>".
 
+
 html_post() ->
-"<script>
+    "<script>
     var ul = document.getElementsByTagName('ul');
     for (var i = 0; i < ul.length; i++) {
       if (ul[i].className == 'code-samples-names')

src/ejabberd_config_transformer.erl

@@ -23,23 +23,25 @@
 
 -include("logger.hrl").
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
 map_reduce(Y) ->
     F =
-    fun(Y1) ->
-	Y2 = (validator())(Y1),
-	Y3 = transform(Y2),
-	case application:get_env(ejabberd, custom_config_transformer) of
-	    {ok, TransMod} when is_atom(TransMod) ->
-		TransMod:transform(Y3);
-	    _ ->
-		Y3
-	end
-    end,
+        fun(Y1) ->
+                Y2 = (validator())(Y1),
+                Y3 = transform(Y2),
+                case application:get_env(ejabberd, custom_config_transformer) of
+                    {ok, TransMod} when is_atom(TransMod) ->
+                        TransMod:transform(Y3);
+                    _ ->
+                        Y3
+                end
+        end,
     econf:validate(F, Y).
 
+
 %%%===================================================================
 %%% Transformer
 %%%===================================================================
@@ -48,50 +50,60 @@ transform(Y) ->
     {Y2, Acc2} = update(Y1, Acc1),
     filter(global, Y2, Acc2).
 
+
 transform(Host, Y, Acc) ->
     filtermapfoldr(
       fun({Opt, HostOpts}, Acc1) when (Opt == host_config orelse
-				       Opt == append_host_config)
-				      andalso Host == global ->
-	      case filtermapfoldr(
-		     fun({Host1, Opts}, Acc2) ->
-			     case transform(Host1, Opts, Acc2) of
-				 {[], Acc3} ->
-				     {false, Acc3};
-				 {Opts1, Acc3} ->
-				     {{true, {Host1, Opts1}}, Acc3}
-			     end
-		     end, Acc1, HostOpts) of
-		  {[], Acc4} ->
-		      {false, Acc4};
-		  {HostOpts1, Acc4} ->
-		      {{true, {Opt, HostOpts1}}, Acc4}
-	      end;
-	 ({Opt, Val}, Acc1) ->
-	      transform(Host, Opt, Val, Acc1)
-      end, Acc, Y).
+                                       Opt == append_host_config) andalso
+                                      Host == global ->
+              case filtermapfoldr(
+                     fun({Host1, Opts}, Acc2) ->
+                             case transform(Host1, Opts, Acc2) of
+                                 {[], Acc3} ->
+                                     {false, Acc3};
+                                 {Opts1, Acc3} ->
+                                     {{true, {Host1, Opts1}}, Acc3}
+                             end
+                     end,
+                     Acc1,
+                     HostOpts) of
+                  {[], Acc4} ->
+                      {false, Acc4};
+                  {HostOpts1, Acc4} ->
+                      {{true, {Opt, HostOpts1}}, Acc4}
+              end;
+         ({Opt, Val}, Acc1) ->
+              transform(Host, Opt, Val, Acc1)
+      end,
+      Acc,
+      Y).
+
 
 transform(Host, modules, ModOpts, Acc) ->
     {ModOpts1, Acc2} =
-	lists:mapfoldr(
-	  fun({Mod, Opts}, Acc1) ->
-		  Opts1 = transform_module_options(Opts),
-		  transform_module(Host, Mod, Opts1, Acc1)
-	  end, Acc, ModOpts),
+        lists:mapfoldr(
+          fun({Mod, Opts}, Acc1) ->
+                  Opts1 = transform_module_options(Opts),
+                  transform_module(Host, Mod, Opts1, Acc1)
+          end,
+          Acc,
+          ModOpts),
     {{true, {modules, ModOpts1}}, Acc2};
 transform(global, listen, Listeners, Acc) ->
     {Listeners1, Acc2} =
-	lists:mapfoldr(
-	  fun(Opts, Acc1) ->
-		  transform_listener(Opts, Acc1)
-	  end, Acc, Listeners),
+        lists:mapfoldr(
+          fun(Opts, Acc1) ->
+                  transform_listener(Opts, Acc1)
+          end,
+          Acc,
+          Listeners),
     {{true, {listen, Listeners1}}, Acc2};
 transform(_Host, Opt, CertFile, Acc) when (Opt == domain_certfile) orelse
-					  (Opt == c2s_certfile) orelse
-					  (Opt == s2s_certfile) ->
+                                          (Opt == c2s_certfile) orelse
+                                          (Opt == s2s_certfile) ->
     ?WARNING_MSG("Option '~ts' is deprecated and was automatically "
-		 "appended to 'certfiles' option. ~ts",
-		 [Opt, adjust_hint()]),
+                 "appended to 'certfiles' option. ~ts",
+                 [Opt, adjust_hint()]),
     CertFiles = maps:get(certfiles, Acc, []),
     Acc1 = maps:put(certfiles, CertFiles ++ [CertFile], Acc),
     {false, Acc1};
@@ -101,57 +113,63 @@ transform(_Host, certfiles, CertFiles1, Acc) ->
     {true, Acc1};
 transform(_Host, acme, ACME, Acc) ->
     ACME1 = lists:map(
-	      fun({ca_url, URL} = Opt) ->
+              fun({ca_url, URL} = Opt) ->
                       case misc:uri_parse(URL) of
-			  {ok, _, _, "acme-v01.api.letsencrypt.org", _, _, _} ->
-			      NewURL = ejabberd_acme:default_directory_url(),
-			      ?WARNING_MSG("ACME directory URL ~ts defined in "
-					   "option acme->ca_url is deprecated "
-					   "and was automatically replaced "
-					   "with ~ts. ~ts",
-					   [URL, NewURL, adjust_hint()]),
-			      {ca_url, NewURL};
-			  _ ->
-			      Opt
-		      end;
-		 (Opt) ->
-		      Opt
-	      end, ACME),
+                          {ok, _, _, "acme-v01.api.letsencrypt.org", _, _, _} ->
+                              NewURL = ejabberd_acme:default_directory_url(),
+                              ?WARNING_MSG("ACME directory URL ~ts defined in "
+                                           "option acme->ca_url is deprecated "
+                                           "and was automatically replaced "
+                                           "with ~ts. ~ts",
+                                           [URL, NewURL, adjust_hint()]),
+                              {ca_url, NewURL};
+                          _ ->
+                              Opt
+                      end;
+                 (Opt) ->
+                      Opt
+              end,
+              ACME),
     {{true, {acme, ACME1}}, Acc};
 transform(Host, s2s_use_starttls, required_trusted, Acc) ->
     ?WARNING_MSG("The value 'required_trusted' of option "
-		 "'s2s_use_starttls' is deprecated and was "
-		 "automatically replaced with value 'required'. "
-		 "The module 'mod_s2s_dialback' has also "
-		 "been automatically removed from the configuration. ~ts",
-		 [adjust_hint()]),
+                 "'s2s_use_starttls' is deprecated and was "
+                 "automatically replaced with value 'required'. "
+                 "The module 'mod_s2s_dialback' has also "
+                 "been automatically removed from the configuration. ~ts",
+                 [adjust_hint()]),
     Hosts = maps:get(remove_s2s_dialback, Acc, []),
-    Acc1 = maps:put(remove_s2s_dialback, [Host|Hosts], Acc),
+    Acc1 = maps:put(remove_s2s_dialback, [Host | Hosts], Acc),
     {{true, {s2s_use_starttls, required}}, Acc1};
 transform(Host, define_macro, Macro, Acc) when is_binary(Host) ->
     ?WARNING_MSG("The option 'define_macro' is not supported inside 'host_config'. "
-		 "Consequently those macro definitions for host '~ts' are unused: ~ts",
-		 [Host, io_lib:format("~p", [Macro])]),
+                 "Consequently those macro definitions for host '~ts' are unused: ~ts",
+                 [Host, io_lib:format("~p", [Macro])]),
     {true, Acc};
 transform(_Host, _Opt, _Val, Acc) ->
     {true, Acc}.
 
+
 update(Y, Acc) ->
     set_certfiles(Y, Acc).
 
+
 filter(Host, Y, Acc) ->
     lists:filtermap(
       fun({Opt, HostOpts}) when (Opt == host_config orelse
-				 Opt == append_host_config)
-				andalso Host == global ->
-	      HostOpts1 = lists:map(
-			    fun({Host1, Opts1}) ->
-				    {Host1, filter(Host1, Opts1, Acc)}
-			    end, HostOpts),
-	      {true, {Opt, HostOpts1}};
-	 ({Opt, Val}) ->
-	      filter(Host, Opt, Val, Acc)
-      end, Y).
+                                 Opt == append_host_config) andalso
+                                Host == global ->
+              HostOpts1 = lists:map(
+                            fun({Host1, Opts1}) ->
+                                    {Host1, filter(Host1, Opts1, Acc)}
+                            end,
+                            HostOpts),
+              {true, {Opt, HostOpts1}};
+         ({Opt, Val}) ->
+              filter(Host, Opt, Val, Acc)
+      end,
+      Y).
+
 
 filter(_Host, log_rotate_date, _, _) ->
     warn_removed_option(log_rotate_date),
@@ -201,10 +219,11 @@ filter(_Host, default_db, odbc, _) ->
     {true, {default_db, sql}};
 filter(_Host, auth_method, Ms, _) ->
     Ms1 = lists:map(
-	    fun(internal) -> mnesia;
-	       (odbc) -> sql;
-	       (M) -> M
-	    end, Ms),
+            fun(internal) -> mnesia;
+               (odbc) -> sql;
+               (M) -> M
+            end,
+            Ms),
     {true, {auth_method, Ms1}};
 filter(_Host, default_ram_db, internal, _) ->
     {true, {default_ram_db, mnesia}};
@@ -212,16 +231,17 @@ filter(_Host, default_ram_db, odbc, _) ->
     {true, {default_ram_db, sql}};
 filter(_Host, extauth_cache, _, _) ->
     ?WARNING_MSG("Option 'extauth_cache' is deprecated "
-		 "and has no effect, use authentication "
-		 "or global cache configuration options: "
-		 "auth_use_cache, auth_cache_life_time, "
-		 "use_cache, cache_life_time, and so on", []),
+                 "and has no effect, use authentication "
+                 "or global cache configuration options: "
+                 "auth_use_cache, auth_cache_life_time, "
+                 "use_cache, cache_life_time, and so on",
+                 []),
     false;
 filter(_Host, extauth_instances, Val, _) ->
     warn_replaced_option(extauth_instances, extauth_pool_size),
     {true, {extauth_pool_size, Val}};
 filter(_Host, Opt, Val, _) when Opt == outgoing_s2s_timeout;
-				Opt == s2s_dns_timeout ->
+                                Opt == s2s_dns_timeout ->
     warn_huge_timeout(Opt, Val),
     true;
 filter(_Host, captcha_host, _, _) ->
@@ -235,18 +255,20 @@ filter(_Host, auth_password_types_hidden_in_scram1, Val, _) ->
 filter(Host, modules, ModOpts, State) ->
     NoDialbackHosts = maps:get(remove_s2s_dialback, State, []),
     ModOpts1 = lists:filter(
-		 fun({mod_s2s_dialback, _}) ->
-			 not lists:member(Host, NoDialbackHosts);
-		    ({mod_echo, _}) ->
-			 warn_removed_module(mod_echo),
-			 false;
-		    (_) ->
-			 true
-		 end, ModOpts),
+                 fun({mod_s2s_dialback, _}) ->
+                         not lists:member(Host, NoDialbackHosts);
+                    ({mod_echo, _}) ->
+                         warn_removed_module(mod_echo),
+                         false;
+                    (_) ->
+                         true
+                 end,
+                 ModOpts),
     {true, {modules, ModOpts1}};
 filter(_, _, _, _) ->
     true.
 
+
 %%%===================================================================
 %%% Listener transformers
 %%%===================================================================
@@ -256,127 +278,143 @@ transform_listener(Opts, Acc) ->
     Opts3 = remove_inet_options(Opts2),
     collect_listener_certfiles(Opts3, Acc).
 
+
 transform_request_handlers(Opts) ->
     case lists:keyfind(module, 1, Opts) of
-	{_, ejabberd_http} ->
-	    replace_request_handlers(Opts);
-	{_, ejabberd_xmlrpc} ->
-	    remove_xmlrpc_access_commands(Opts);
-	_ ->
-	    Opts
+        {_, ejabberd_http} ->
+            replace_request_handlers(Opts);
+        {_, ejabberd_xmlrpc} ->
+            remove_xmlrpc_access_commands(Opts);
+        _ ->
+            Opts
     end.
 
+
 transform_turn_ip(Opts) ->
     case lists:keyfind(module, 1, Opts) of
-	{_, ejabberd_stun} ->
-	    replace_turn_ip(Opts);
-	_ ->
-	    Opts
+        {_, ejabberd_stun} ->
+            replace_turn_ip(Opts);
+        _ ->
+            Opts
     end.
 
+
 replace_request_handlers(Opts) ->
     Handlers = proplists:get_value(request_handlers, Opts, []),
     Handlers1 =
-	lists:foldl(
-	  fun({captcha, IsEnabled}, Acc) ->
-		  Handler = {<<"/captcha">>, ejabberd_captcha},
-		  warn_replaced_handler(captcha, Handler, IsEnabled),
-		  [Handler|Acc];
-	     ({register, IsEnabled}, Acc) ->
-		  Handler = {<<"/register">>, mod_register_web},
-		  warn_replaced_handler(register, Handler, IsEnabled),
-		  [Handler|Acc];
-	     ({web_admin, IsEnabled}, Acc) ->
-		  Handler = {<<"/admin">>, ejabberd_web_admin},
-		  warn_replaced_handler(web_admin, Handler, IsEnabled),
-		  [Handler|Acc];
-	     ({http_bind, IsEnabled}, Acc) ->
-		  Handler = {<<"/bosh">>, mod_bosh},
-		  warn_replaced_handler(http_bind, Handler, IsEnabled),
-		  [Handler|Acc];
-	     ({xmlrpc, IsEnabled}, Acc) ->
-		  Handler = {<<"/">>, ejabberd_xmlrpc},
-		  warn_replaced_handler(xmlrpc, Handler, IsEnabled),
-		  Acc ++ [Handler];
-	     (_, Acc) ->
-		  Acc
-	  end, Handlers, Opts),
+        lists:foldl(
+          fun({captcha, IsEnabled}, Acc) ->
+                  Handler = {<<"/captcha">>, ejabberd_captcha},
+                  warn_replaced_handler(captcha, Handler, IsEnabled),
+                  [Handler | Acc];
+             ({register, IsEnabled}, Acc) ->
+                  Handler = {<<"/register">>, mod_register_web},
+                  warn_replaced_handler(register, Handler, IsEnabled),
+                  [Handler | Acc];
+             ({web_admin, IsEnabled}, Acc) ->
+                  Handler = {<<"/admin">>, ejabberd_web_admin},
+                  warn_replaced_handler(web_admin, Handler, IsEnabled),
+                  [Handler | Acc];
+             ({http_bind, IsEnabled}, Acc) ->
+                  Handler = {<<"/bosh">>, mod_bosh},
+                  warn_replaced_handler(http_bind, Handler, IsEnabled),
+                  [Handler | Acc];
+             ({xmlrpc, IsEnabled}, Acc) ->
+                  Handler = {<<"/">>, ejabberd_xmlrpc},
+                  warn_replaced_handler(xmlrpc, Handler, IsEnabled),
+                  Acc ++ [Handler];
+             (_, Acc) ->
+                  Acc
+          end,
+          Handlers,
+          Opts),
     Handlers2 = lists:map(
-		  fun({Path, mod_http_bind}) ->
-			  warn_replaced_module(mod_http_bind, mod_bosh),
-			  {Path, mod_bosh};
-		     (PathMod) ->
-			  PathMod
-		  end, Handlers1),
+                  fun({Path, mod_http_bind}) ->
+                          warn_replaced_module(mod_http_bind, mod_bosh),
+                          {Path, mod_bosh};
+                     (PathMod) ->
+                          PathMod
+                  end,
+                  Handlers1),
     Opts1 = lists:filtermap(
-	      fun({captcha, _}) -> false;
-		 ({register, _}) -> false;
-		 ({web_admin, _}) -> false;
-		 ({http_bind, _}) -> false;
-		 ({xmlrpc, _}) -> false;
-		 ({http_poll, _}) ->
-		      ?WARNING_MSG("Listening option 'http_poll' is "
-				   "ignored: HTTP Polling support was "
-				   "removed in ejabberd 15.04. ~ts",
-				   [adjust_hint()]),
-		      false;
-		 ({request_handlers, _}) ->
-		      false;
-		 (_) -> true
-	      end, Opts),
+              fun({captcha, _}) -> false;
+                 ({register, _}) -> false;
+                 ({web_admin, _}) -> false;
+                 ({http_bind, _}) -> false;
+                 ({xmlrpc, _}) -> false;
+                 ({http_poll, _}) ->
+                      ?WARNING_MSG("Listening option 'http_poll' is "
+                                   "ignored: HTTP Polling support was "
+                                   "removed in ejabberd 15.04. ~ts",
+                                   [adjust_hint()]),
+                      false;
+                 ({request_handlers, _}) ->
+                      false;
+                 (_) -> true
+              end,
+              Opts),
     case Handlers2 of
-	[] -> Opts1;
-	_ -> [{request_handlers, Handlers2}|Opts1]
+        [] -> Opts1;
+        _ -> [{request_handlers, Handlers2} | Opts1]
     end.
 
+
 remove_xmlrpc_access_commands(Opts) ->
     lists:filter(
       fun({access_commands, _}) ->
-	      warn_removed_option(access_commands, api_permissions),
-	      false;
-	 (_) ->
-	      true
-      end, Opts).
+              warn_removed_option(access_commands, api_permissions),
+              false;
+         (_) ->
+              true
+      end,
+      Opts).
+
 
 replace_turn_ip(Opts) ->
     lists:filtermap(
       fun({turn_ip, Val}) ->
-	      warn_replaced_option(turn_ip, turn_ipv4_address),
-	      {true, {turn_ipv4_address, Val}};
-	 (_) ->
-	      true
-      end, Opts).
+              warn_replaced_option(turn_ip, turn_ipv4_address),
+              {true, {turn_ipv4_address, Val}};
+         (_) ->
+              true
+      end,
+      Opts).
+
 
 remove_inet_options(Opts) ->
     lists:filter(
       fun({Opt, _}) when Opt == inet; Opt == inet6 ->
-	      warn_removed_option(Opt, ip),
-	      false;
-	 (_) ->
-	      true
-      end, Opts).
+              warn_removed_option(Opt, ip),
+              false;
+         (_) ->
+              true
+      end,
+      Opts).
+
 
 collect_listener_certfiles(Opts, Acc) ->
     Mod = proplists:get_value(module, Opts),
-    if Mod == ejabberd_http;
-       Mod == ejabberd_c2s;
-       Mod == ejabberd_s2s_in ->
-	    case lists:keyfind(certfile, 1, Opts) of
-		{_, CertFile} ->
-		    ?WARNING_MSG("Listening option 'certfile' of module ~ts "
-				 "is deprecated and was automatically "
-				 "appended to global 'certfiles' option. ~ts",
-				 [Mod, adjust_hint()]),
-		    CertFiles = maps:get(certfiles, Acc, []),
-		    {proplists:delete(certfile, Opts),
-		     maps:put(certfiles, [CertFile|CertFiles], Acc)};
-		false ->
-		    {Opts, Acc}
-	    end;
-       true ->
-	    {Opts, Acc}
+    if
+        Mod == ejabberd_http;
+        Mod == ejabberd_c2s;
+        Mod == ejabberd_s2s_in ->
+            case lists:keyfind(certfile, 1, Opts) of
+                {_, CertFile} ->
+                    ?WARNING_MSG("Listening option 'certfile' of module ~ts "
+                                 "is deprecated and was automatically "
+                                 "appended to global 'certfiles' option. ~ts",
+                                 [Mod, adjust_hint()]),
+                    CertFiles = maps:get(certfiles, Acc, []),
+                    {proplists:delete(certfile, Opts),
+                     maps:put(certfiles, [CertFile | CertFiles], Acc)};
+                false ->
+                    {Opts, Acc}
+            end;
+        true ->
+            {Opts, Acc}
     end.
 
+
 %%%===================================================================
 %%% Module transformers
 %%% NOTE: transform_module_options/1 is called before transform_module/4
@@ -384,32 +422,34 @@ collect_listener_certfiles(Opts, Acc) ->
 transform_module_options(Opts) ->
     lists:filtermap(
       fun({Opt, internal}) when Opt == db_type;
-				Opt == ram_db_type ->
-	      {true, {Opt, mnesia}};
-	 ({Opt, odbc}) when Opt == db_type;
-			    Opt == ram_db_type ->
-	      {true, {Opt, sql}};
-	 ({deref_aliases, Val}) ->
-	      warn_replaced_option(deref_aliases, ldap_deref_aliases),
-	      {true, {ldap_deref_aliases, Val}};
-	 ({ldap_group_cache_size, _}) ->
-	      warn_removed_option(ldap_group_cache_size, cache_size),
-	      false;
-	 ({ldap_user_cache_size, _}) ->
-	      warn_removed_option(ldap_user_cache_size, cache_size),
-	      false;
-	 ({ldap_group_cache_validity, _}) ->
-	      warn_removed_option(ldap_group_cache_validity, cache_life_time),
-	      false;
-	 ({ldap_user_cache_validity, _}) ->
-	      warn_removed_option(ldap_user_cache_validity, cache_life_time),
-	      false;
-	 ({iqdisc, _}) ->
-	      warn_removed_option(iqdisc),
-	      false;
-	 (_) ->
-	      true
-      end, Opts).
+                                Opt == ram_db_type ->
+              {true, {Opt, mnesia}};
+         ({Opt, odbc}) when Opt == db_type;
+                            Opt == ram_db_type ->
+              {true, {Opt, sql}};
+         ({deref_aliases, Val}) ->
+              warn_replaced_option(deref_aliases, ldap_deref_aliases),
+              {true, {ldap_deref_aliases, Val}};
+         ({ldap_group_cache_size, _}) ->
+              warn_removed_option(ldap_group_cache_size, cache_size),
+              false;
+         ({ldap_user_cache_size, _}) ->
+              warn_removed_option(ldap_user_cache_size, cache_size),
+              false;
+         ({ldap_group_cache_validity, _}) ->
+              warn_removed_option(ldap_group_cache_validity, cache_life_time),
+              false;
+         ({ldap_user_cache_validity, _}) ->
+              warn_removed_option(ldap_user_cache_validity, cache_life_time),
+              false;
+         ({iqdisc, _}) ->
+              warn_removed_option(iqdisc),
+              false;
+         (_) ->
+              true
+      end,
+      Opts).
+
 
 transform_module(Host, mod_http_bind, Opts, Acc) ->
     warn_replaced_module(mod_http_bind, mod_bosh),
@@ -419,177 +459,209 @@ transform_module(Host, mod_vcard_xupdate_odbc, Opts, Acc) ->
     transform_module(Host, mod_vcard_xupdate, Opts, Acc);
 transform_module(Host, mod_vcard_ldap, Opts, Acc) ->
     warn_replaced_module(mod_vcard_ldap, mod_vcard, ldap),
-    transform_module(Host, mod_vcard, [{db_type, ldap}|Opts], Acc);
+    transform_module(Host, mod_vcard, [{db_type, ldap} | Opts], Acc);
 transform_module(Host, M, Opts, Acc) when (M == mod_announce_odbc orelse
-					   M == mod_blocking_odbc orelse
-					   M == mod_caps_odbc orelse
-					   M == mod_last_odbc orelse
-					   M == mod_muc_odbc orelse
-					   M == mod_offline_odbc orelse
-					   M == mod_privacy_odbc orelse
-					   M == mod_private_odbc orelse
-					   M == mod_pubsub_odbc orelse
-					   M == mod_roster_odbc orelse
-					   M == mod_shared_roster_odbc orelse
-					   M == mod_vcard_odbc) ->
+                                           M == mod_blocking_odbc orelse
+                                           M == mod_caps_odbc orelse
+                                           M == mod_last_odbc orelse
+                                           M == mod_muc_odbc orelse
+                                           M == mod_offline_odbc orelse
+                                           M == mod_privacy_odbc orelse
+                                           M == mod_private_odbc orelse
+                                           M == mod_pubsub_odbc orelse
+                                           M == mod_roster_odbc orelse
+                                           M == mod_shared_roster_odbc orelse
+                                           M == mod_vcard_odbc) ->
     M1 = strip_odbc_suffix(M),
     warn_replaced_module(M, M1, sql),
-    transform_module(Host, M1, [{db_type, sql}|Opts], Acc);
+    transform_module(Host, M1, [{db_type, sql} | Opts], Acc);
 transform_module(_Host, mod_blocking, Opts, Acc) ->
     Opts1 = lists:filter(
-	      fun({db_type, _}) ->
-		      warn_removed_module_option(db_type, mod_blocking),
-		      false;
-		 (_) ->
-		      true
-	      end, Opts),
+              fun({db_type, _}) ->
+                      warn_removed_module_option(db_type, mod_blocking),
+                      false;
+                 (_) ->
+                      true
+              end,
+              Opts),
     {{mod_blocking, Opts1}, Acc};
 transform_module(_Host, mod_carboncopy, Opts, Acc) ->
     Opts1 = lists:filter(
-	      fun({Opt, _}) when Opt == ram_db_type;
-				 Opt == use_cache;
-				 Opt == cache_size;
-				 Opt == cache_missed;
-				 Opt == cache_life_time ->
-		      warn_removed_module_option(Opt, mod_carboncopy),
-		      false;
-		 (_) ->
-		      true
-	      end, Opts),
+              fun({Opt, _}) when Opt == ram_db_type;
+                                 Opt == use_cache;
+                                 Opt == cache_size;
+                                 Opt == cache_missed;
+                                 Opt == cache_life_time ->
+                      warn_removed_module_option(Opt, mod_carboncopy),
+                      false;
+                 (_) ->
+                      true
+              end,
+              Opts),
     {{mod_carboncopy, Opts1}, Acc};
 transform_module(_Host, mod_http_api, Opts, Acc) ->
     Opts1 = lists:filter(
-	      fun({admin_ip_access, _}) ->
-		      warn_removed_option(admin_ip_access, api_permissions),
-		      false;
-		 (_) ->
-		      true
-	      end, Opts),
+              fun({admin_ip_access, _}) ->
+                      warn_removed_option(admin_ip_access, api_permissions),
+                      false;
+                 (_) ->
+                      true
+              end,
+              Opts),
     {{mod_http_api, Opts1}, Acc};
 transform_module(_Host, mod_http_upload, Opts, Acc) ->
     Opts1 = lists:filter(
-	      fun({service_url, _}) ->
-		      warn_deprecated_option(service_url, external_secret),
-		      true;
-		 (_) ->
-		      true
-	      end, Opts),
+              fun({service_url, _}) ->
+                      warn_deprecated_option(service_url, external_secret),
+                      true;
+                 (_) ->
+                      true
+              end,
+              Opts),
     {{mod_http_upload, Opts1}, Acc};
 transform_module(_Host, mod_pubsub, Opts, Acc) ->
     Opts1 = lists:map(
-	      fun({plugins, Plugins}) ->
-		      {plugins,
-		       lists:filter(
-			 fun(Plugin) ->
-				 case lists:member(
-					Plugin,
-					[<<"buddy">>, <<"club">>, <<"dag">>,
-					 <<"dispatch">>, <<"hometree">>, <<"mb">>,
-					 <<"mix">>, <<"online">>, <<"private">>,
-					 <<"public">>]) of
-				     true ->
-					 ?WARNING_MSG(
-					    "Plugin '~ts' of mod_pubsub is not "
-					    "supported anymore and has been "
-					    "automatically removed from 'plugins' "
-					    "option. ~ts",
-					    [Plugin, adjust_hint()]),
-					 false;
-				     false ->
-					 true
-				 end
-			 end, Plugins)};
-		 (Opt) ->
-		      Opt
-	      end, Opts),
+              fun({plugins, Plugins}) ->
+                      {plugins,
+                       lists:filter(
+                         fun(Plugin) ->
+                                 case lists:member(
+                                        Plugin,
+                                        [<<"buddy">>,
+                                         <<"club">>,
+                                         <<"dag">>,
+                                         <<"dispatch">>,
+                                         <<"hometree">>,
+                                         <<"mb">>,
+                                         <<"mix">>,
+                                         <<"online">>,
+                                         <<"private">>,
+                                         <<"public">>]) of
+                                     true ->
+                                         ?WARNING_MSG(
+                                           "Plugin '~ts' of mod_pubsub is not "
+                                           "supported anymore and has been "
+                                           "automatically removed from 'plugins' "
+                                           "option. ~ts",
+                                           [Plugin, adjust_hint()]),
+                                         false;
+                                     false ->
+                                         true
+                                 end
+                         end,
+                         Plugins)};
+                 (Opt) ->
+                      Opt
+              end,
+              Opts),
     {{mod_pubsub, Opts1}, Acc};
 transform_module(_Host, Mod, Opts, Acc) ->
     {{Mod, Opts}, Acc}.
 
+
 strip_odbc_suffix(M) ->
-    [_|T] = lists:reverse(string:tokens(atom_to_list(M), "_")),
+    [_ | T] = lists:reverse(string:tokens(atom_to_list(M), "_")),
     list_to_atom(string:join(lists:reverse(T), "_")).
 
+
 %%%===================================================================
 %%% Aux
 %%%===================================================================
 filtermapfoldr(Fun, Init, List) ->
     lists:foldr(
       fun(X, {Ret, Acc}) ->
-	      case Fun(X, Acc) of
-		  {true, Acc1} -> {[X|Ret], Acc1};
-		  {{true, X1}, Acc1} -> {[X1|Ret], Acc1};
-		  {false, Acc1} -> {Ret, Acc1}
-	      end
-      end, {[], Init}, List).
+              case Fun(X, Acc) of
+                  {true, Acc1} -> {[X | Ret], Acc1};
+                  {{true, X1}, Acc1} -> {[X1 | Ret], Acc1};
+                  {false, Acc1} -> {Ret, Acc1}
+              end
+      end,
+      {[], Init},
+      List).
+
 
 set_certfiles(Y, #{certfiles := CertFiles} = Acc) ->
     {lists:keystore(certfiles, 1, Y, {certfiles, CertFiles}), Acc};
 set_certfiles(Y, Acc) ->
     {Y, Acc}.
 
+
 %%%===================================================================
 %%% Warnings
 %%%===================================================================
 warn_replaced_module(From, To) ->
     ?WARNING_MSG("Module ~ts is deprecated and was automatically "
-		 "replaced by ~ts. ~ts",
-		 [From, To, adjust_hint()]).
+                 "replaced by ~ts. ~ts",
+                 [From, To, adjust_hint()]).
+
 
 warn_replaced_module(From, To, Type) ->
     ?WARNING_MSG("Module ~ts is deprecated and was automatically "
-		 "replaced by ~ts with db_type: ~ts. ~ts",
-		 [From, To, Type, adjust_hint()]).
+                 "replaced by ~ts with db_type: ~ts. ~ts",
+                 [From, To, Type, adjust_hint()]).
+
 
 warn_removed_module(Mod) ->
     ?WARNING_MSG("Module ~ts is deprecated and was automatically "
-		 "removed from the configuration. ~ts", [Mod, adjust_hint()]).
+                 "removed from the configuration. ~ts",
+                 [Mod, adjust_hint()]).
+
 
 warn_replaced_handler(Opt, {Path, Module}, false) ->
     ?WARNING_MSG("Listening option '~ts' is deprecated, "
-		 "please use instead the "
-		 "HTTP request handler: \"~ts\" -> ~ts. ~ts",
-		 [Opt, Path, Module, adjust_hint()]);
+                 "please use instead the "
+                 "HTTP request handler: \"~ts\" -> ~ts. ~ts",
+                 [Opt, Path, Module, adjust_hint()]);
 warn_replaced_handler(Opt, {Path, Module}, true) ->
     ?WARNING_MSG("Listening option '~ts' is deprecated "
-		 "and was automatically replaced by "
-		 "HTTP request handler: \"~ts\" -> ~ts. ~ts",
-		 [Opt, Path, Module, adjust_hint()]).
+                 "and was automatically replaced by "
+                 "HTTP request handler: \"~ts\" -> ~ts. ~ts",
+                 [Opt, Path, Module, adjust_hint()]).
+
 
 warn_deprecated_option(OldOpt, NewOpt) ->
     ?WARNING_MSG("Option '~ts' is deprecated. Use option '~ts' instead.",
-		 [OldOpt, NewOpt]).
+                 [OldOpt, NewOpt]).
+
 
 warn_replaced_option(OldOpt, NewOpt) ->
     ?WARNING_MSG("Option '~ts' is deprecated and was automatically "
-		 "replaced by '~ts'. ~ts",
-		 [OldOpt, NewOpt, adjust_hint()]).
+                 "replaced by '~ts'. ~ts",
+                 [OldOpt, NewOpt, adjust_hint()]).
+
 
 warn_removed_option(Opt) ->
     ?WARNING_MSG("Option '~ts' is deprecated and has no effect anymore. "
-		 "Please remove it from the configuration.", [Opt]).
+                 "Please remove it from the configuration.",
+                 [Opt]).
+
 
 warn_removed_option(OldOpt, NewOpt) ->
     ?WARNING_MSG("Option '~ts' is deprecated and has no effect anymore. "
-		 "Use option '~ts' instead.", [OldOpt, NewOpt]).
+                 "Use option '~ts' instead.",
+                 [OldOpt, NewOpt]).
+
 
 warn_removed_module_option(Opt, Mod) ->
     ?WARNING_MSG("Option '~ts' of module ~ts is deprecated "
-		 "and has no effect anymore. ~ts",
-		 [Opt, Mod, adjust_hint()]).
+                 "and has no effect anymore. ~ts",
+                 [Opt, Mod, adjust_hint()]).
+
 
 warn_huge_timeout(Opt, T) when is_integer(T), T >= 1000 ->
     ?WARNING_MSG("Value '~B' of option '~ts' is too big, "
-		 "are you sure you have set seconds?",
-		 [T, Opt]);
+                 "are you sure you have set seconds?",
+                 [T, Opt]);
 warn_huge_timeout(_, _) ->
     ok.
 
+
 adjust_hint() ->
     "Please adjust your configuration file accordingly. "
     "Hint: run `ejabberdctl dump-config` command to view current "
     "configuration as it is seen by ejabberd.".
 
+
 %%%===================================================================
 %%% Very raw validator: just to make sure we get properly typed terms
 %%% Expand it if you need to transform more options, but don't
@@ -597,48 +669,60 @@ adjust_hint() ->
 %%%===================================================================
 validator() ->
     Validators =
-	#{s2s_use_starttls => econf:atom(),
-	  certfiles => econf:list(econf:any()),
-	  c2s_certfile => econf:binary(),
-	  s2s_certfile => econf:binary(),
-	  domain_certfile => econf:binary(),
-	  default_db => econf:atom(),
-	  default_ram_db => econf:atom(),
-	  auth_method => econf:list_or_single(econf:atom()),
-	  acme => econf:options(
-		    #{ca_url => econf:binary(),
-		      '_' => econf:any()},
-		    [unique]),
-	  listen =>
-	      econf:list(
-		econf:options(
-		  #{captcha => econf:bool(),
-		    register => econf:bool(),
-		    web_admin => econf:bool(),
-		    http_bind => econf:bool(),
-		    http_poll => econf:bool(),
-		    xmlrpc => econf:bool(),
-		    module => econf:atom(),
-		    certfile => econf:binary(),
-		    request_handlers =>
-			econf:map(econf:binary(), econf:atom()),
-		    '_' => econf:any()},
-		  [])),
-	  modules =>
-	      econf:options(
-		#{'_' =>
-		      econf:options(
-			#{db_type => econf:atom(),
-			  plugins => econf:list(econf:binary()),
-			  '_' => econf:any()},
-			[])},
-		[]),
-	  '_' => econf:any()},
+        #{
+          s2s_use_starttls => econf:atom(),
+          certfiles => econf:list(econf:any()),
+          c2s_certfile => econf:binary(),
+          s2s_certfile => econf:binary(),
+          domain_certfile => econf:binary(),
+          default_db => econf:atom(),
+          default_ram_db => econf:atom(),
+          auth_method => econf:list_or_single(econf:atom()),
+          acme => econf:options(
+                    #{
+                      ca_url => econf:binary(),
+                      '_' => econf:any()
+                     },
+                    [unique]),
+          listen =>
+              econf:list(
+                econf:options(
+                  #{
+                    captcha => econf:bool(),
+                    register => econf:bool(),
+                    web_admin => econf:bool(),
+                    http_bind => econf:bool(),
+                    http_poll => econf:bool(),
+                    xmlrpc => econf:bool(),
+                    module => econf:atom(),
+                    certfile => econf:binary(),
+                    request_handlers =>
+                        econf:map(econf:binary(), econf:atom()),
+                    '_' => econf:any()
+                   },
+                  [])),
+          modules =>
+              econf:options(
+                #{
+                  '_' =>
+                      econf:options(
+                        #{
+                          db_type => econf:atom(),
+                          plugins => econf:list(econf:binary()),
+                          '_' => econf:any()
+                         },
+                        [])
+                 },
+                []),
+          '_' => econf:any()
+         },
     econf:options(
-      Validators#{host_config =>
-		      econf:map(econf:binary(),
-				econf:options(Validators, [])),
-		  append_host_config =>
-		      econf:map(econf:binary(),
-				econf:options(Validators, []))},
+      Validators#{
+        host_config =>
+            econf:map(econf:binary(),
+                      econf:options(Validators, [])),
+        append_host_config =>
+            econf:map(econf:binary(),
+                      econf:options(Validators, []))
+       },
       []).

src/ejabberd_db_sup.erl

@@ -29,12 +29,14 @@
 %% Supervisor callbacks
 -export([init/1]).
 
+
 %%%===================================================================
 %%% API functions
 %%%===================================================================
 start_link() ->
     supervisor:start_link({local, ?MODULE}, ?MODULE, []).
 
+
 %%%===================================================================
 %%% Supervisor callbacks
 %%%===================================================================

src/ejabberd_doc.erl

@@ -27,12 +27,14 @@
 -include("ejabberd_commands.hrl").
 -include("translate.hrl").
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
 man() ->
     man(<<"en">>).
 
+
 man(Lang) when is_list(Lang) ->
     man(list_to_binary(Lang));
 man(Lang) ->
@@ -40,7 +42,7 @@ man(Lang) ->
         lists:foldl(
           fun(M, {Mods, SubMods} = Acc) ->
                   case lists:prefix("mod_", atom_to_list(M)) orelse
-                      lists:prefix("Elixir.Mod", atom_to_list(M)) of
+                       lists:prefix("Elixir.Mod", atom_to_list(M)) of
                       true ->
                           try M:mod_doc() of
                               #{desc := Descr} = Map ->
@@ -48,17 +50,18 @@ man(Lang) ->
                                   Example = maps:get(example, Map, []),
                                   Note = maps:get(note, Map, []),
                                   Apitags = get_module_apitags(M),
-                                  {[{M, Descr, DocOpts, #{example => Example, note => Note, apitags => Apitags}}|Mods], SubMods};
+                                  {[{M, Descr, DocOpts, #{example => Example, note => Note, apitags => Apitags}} | Mods], SubMods};
                               #{opts := DocOpts} ->
                                   {ParentMod, Backend} = strip_backend_suffix(M),
                                   {Mods, dict:append(ParentMod, {M, Backend, DocOpts}, SubMods)};
                               #{} ->
                                   warn("module ~s is not properly documented", [M]),
                                   Acc
-                          catch _:undef ->
+                          catch
+                              _:undef ->
                                   case erlang:function_exported(
                                          M, mod_options, 1) of
-                                           true ->
+                                      true ->
                                           warn("module ~s is not documented", [M]);
                                       false ->
                                           ok
@@ -68,13 +71,18 @@ man(Lang) ->
                       false ->
                           Acc
                   end
-          end, {[], dict:new()}, ejabberd_config:beams(all)),
+          end,
+          {[], dict:new()},
+          ejabberd_config:beams(all)),
     Doc = lists:flatmap(
             fun(M) ->
-                    try M:doc()
-                    catch _:undef -> []
+                    try
+                        M:doc()
+                    catch
+                        _:undef -> []
                     end
-            end, ejabberd_config:callback_modules(all)),
+            end,
+            ejabberd_config:callback_modules(all)),
     Version = binary_to_list(ejabberd_config:version()),
     Options =
         ["TOP LEVEL OPTIONS",
@@ -85,7 +93,8 @@ man(Lang) ->
         lists:flatmap(
           fun(Opt) ->
                   opt_to_man(Lang, Opt, 1)
-          end, lists:keysort(1, Doc)),
+          end,
+          lists:keysort(1, Doc)),
     ModDoc1 = lists:map(
                 fun({M, Descr, DocOpts, Ex}) ->
                         case dict:find(M, SubModDoc) of
@@ -94,7 +103,8 @@ man(Lang) ->
                             error ->
                                 {M, Descr, DocOpts, [], Ex}
                         end
-                end, ModDoc),
+                end,
+                ModDoc),
     ModOptions =
         [io_lib:nl(),
          "MODULES",
@@ -112,12 +122,13 @@ man(Lang) ->
                    lists:duplicate(length(atom_to_list(M)), $~),
                    "[[" ++ ModName ++ "]]",
                    io_lib:nl()] ++
-                      format_versions(Lang, Example) ++ [io_lib:nl()] ++
-                      tr_multi(Lang, Descr) ++ [io_lib:nl()] ++
-                      opts_to_man(Lang, [{M, '', DocOpts}|Backends]) ++
-                      format_example(0, Lang, Example) ++ [io_lib:nl()] ++
-                      format_apitags(Lang, Example)
-          end, lists:keysort(1, ModDoc1)),
+                  format_versions(Lang, Example) ++ [io_lib:nl()] ++
+                  tr_multi(Lang, Descr) ++ [io_lib:nl()] ++
+                  opts_to_man(Lang, [{M, '', DocOpts} | Backends]) ++
+                  format_example(0, Lang, Example) ++ [io_lib:nl()] ++
+                  format_apitags(Lang, Example)
+          end,
+          lists:keysort(1, ModDoc1)),
     ListenOptions =
         [io_lib:nl(),
          "LISTENERS",
@@ -127,13 +138,14 @@ man(Lang) ->
          io_lib:nl(),
          "TODO"],
     AsciiData =
-         [[unicode:characters_to_binary(Line), io_lib:nl()]
-          || Line <- man_header(Lang) ++ Options ++ [io_lib:nl()]
-                 ++ ModOptions ++ ListenOptions ++ man_footer(Lang)],
+        [ [unicode:characters_to_binary(Line), io_lib:nl()]
+          || Line <- man_header(Lang) ++ Options ++ [io_lib:nl()] ++
+                     ModOptions ++ ListenOptions ++ man_footer(Lang) ],
     warn_undocumented_modules(ModDoc1),
     warn_undocumented_options(Doc),
     write_man(AsciiData).
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
@@ -143,33 +155,36 @@ opts_to_man(Lang, [{_, _, []}]) ->
 opts_to_man(Lang, Backends) ->
     lists:flatmap(
       fun({_, Backend, DocOpts}) when DocOpts /= [] ->
-              Text = if Backend == '' ->
+              Text = if
+                         Backend == '' ->
                              tr(Lang, ?T("Available options"));
-                        true ->
+                         true ->
                              lists:flatten(
                                io_lib:format(
                                  tr(Lang, ?T("Available options for '~s' backend")),
                                  [Backend]))
                      end,
-              [Text ++ ":", lists:duplicate(length(Text)+1, $^)|
-               lists:flatmap(
-                 fun(Opt) -> opt_to_man(Lang, Opt, 1) end,
-                 lists:keysort(1, DocOpts))] ++ [io_lib:nl()];
+              [Text ++ ":", lists:duplicate(length(Text) + 1, $^) | lists:flatmap(
+                                                                      fun(Opt) -> opt_to_man(Lang, Opt, 1) end,
+                                                                      lists:keysort(1, DocOpts))] ++ [io_lib:nl()];
          (_) ->
               []
-      end, Backends).
+      end,
+      Backends).
+
 
 opt_to_man(Lang, {Option, Options}, Level) ->
-    [format_option(Lang, Option, Options)|format_versions(Lang, Options)++format_desc(Lang, Options)] ++
-        format_example(Level, Lang, Options);
+    [format_option(Lang, Option, Options) | format_versions(Lang, Options) ++ format_desc(Lang, Options)] ++
+    format_example(Level, Lang, Options);
 opt_to_man(Lang, {Option, Options, Children}, Level) ->
-    [format_option(Lang, Option, Options)|format_desc(Lang, Options)] ++
-        lists:append(
-          [[H ++ ":"|T]
-           || [H|T] <- lists:map(
-                         fun(Opt) -> opt_to_man(Lang, Opt, Level+1) end,
-                         lists:keysort(1, Children))]) ++
-        [io_lib:nl()|format_example(Level, Lang, Options)].
+    [format_option(Lang, Option, Options) | format_desc(Lang, Options)] ++
+    lists:append(
+      [ [H ++ ":" | T]
+        || [H | T] <- lists:map(
+                        fun(Opt) -> opt_to_man(Lang, Opt, Level + 1) end,
+                        lists:keysort(1, Children)) ]) ++
+    [io_lib:nl() | format_example(Level, Lang, Options)].
+
 
 get_version_mark(#{note := Note}) ->
     [XX, YY | _] = string:tokens(binary_to_list(ejabberd_option:version()), "."),
@@ -181,84 +196,95 @@ get_version_mark(#{note := Note}) ->
 get_version_mark(_) ->
     "".
 
+
 format_option(Lang, Option, #{value := Val} = Options) ->
     VersionMark = get_version_mark(Options),
     "*" ++ atom_to_list(Option) ++ VersionMark ++ "*: 'pass:[" ++
-        tr(Lang, Val) ++ "]'::";
+    tr(Lang, Val) ++ "]'::";
 format_option(_Lang, Option, #{}) ->
     "*" ++ atom_to_list(Option) ++ "*::".
 
+
 format_versions(_Lang, #{note := Note}) when Note /= [] ->
     ["_Note_ about this option: " ++ Note ++ ". "];
 format_versions(_, _) ->
     [].
 
+
 %% @format-begin
 get_module_apitags(M) ->
     AllCommands = ejabberd_commands:get_commands_definition(),
-    Tags = [C#ejabberd_commands.tags || C <- AllCommands, C#ejabberd_commands.module == M],
+    Tags = [ C#ejabberd_commands.tags || C <- AllCommands, C#ejabberd_commands.module == M ],
     TagsClean =
         lists:sort(
-            misc:lists_uniq(
-                lists:flatten(Tags))),
-    TagsStrings = [atom_to_list(C) || C <- TagsClean],
+          misc:lists_uniq(
+            lists:flatten(Tags))),
+    TagsStrings = [ atom_to_list(C) || C <- TagsClean ],
     TagFiltering =
-        fun ("internal") ->
+        fun("internal") ->
                 false;
-            ([$v | Rest]) ->
+           ([$v | Rest]) ->
                 {error, no_integer} == string:to_integer(Rest);
-            (_) ->
+           (_) ->
                 true
         end,
     TagsFiltered = lists:filter(TagFiltering, TagsStrings),
     TagsUrls =
-        [["_`../../developer/ejabberd-api/admin-tags.md#", C, "|", C, "`_"] || C <- TagsFiltered],
+        [ ["_`../../developer/ejabberd-api/admin-tags.md#", C, "|", C, "`_"] || C <- TagsFiltered ],
     lists:join(", ", TagsUrls).
 
+
 format_apitags(_Lang, #{apitags := TagsString}) when TagsString /= "" ->
     ["**API Tags:** ", TagsString];
 format_apitags(_, _) ->
     [].
 %% @format-end
 
+
 format_desc(Lang, #{desc := Desc}) ->
     tr_multi(Lang, Desc).
 
-format_example(Level, Lang, #{example := [_|_] = Example}) ->
+
+format_example(Level, Lang, #{example := [_ | _] = Example}) ->
     case lists:all(fun is_list/1, Example) of
         true ->
-            if Level == 0 ->
+            if
+                Level == 0 ->
                     ["*Example*:",
                      "^^^^^^^^^^"];
-               true ->
+                true ->
                     ["+", "*Example*:", "+"]
             end ++ format_yaml(Example);
         false when Level == 0 ->
             ["Examples:",
              "^^^^^^^^^"] ++
-                lists:flatmap(
-                    fun({Text, Lines}) ->
-                            [tr(Lang, Text)] ++ format_yaml(Lines)
-                    end, Example);
+            lists:flatmap(
+              fun({Text, Lines}) ->
+                      [tr(Lang, Text)] ++ format_yaml(Lines)
+              end,
+              Example);
         false ->
             lists:flatmap(
               fun(Block) ->
-                      ["+", "*Examples*:", "+"|Block]
+                      ["+", "*Examples*:", "+" | Block]
               end,
               lists:map(
                 fun({Text, Lines}) ->
                         [tr(Lang, Text), "+"] ++ format_yaml(Lines)
-                end, Example))
+                end,
+                Example))
     end;
 format_example(_, _, _) ->
     [].
 
+
 format_yaml(Lines) ->
     ["==========================",
      "[source,yaml]",
-     "----"|Lines] ++
-        ["----",
-         "=========================="].
+     "----" | Lines] ++
+    ["----",
+     "=========================="].
+
 
 man_header(Lang) ->
     ["ejabberd.yml(5)",
@@ -276,18 +302,21 @@ man_header(Lang) ->
      io_lib:nl(),
      "DESCRIPTION",
      "-----------",
-     tr(Lang, ?T("The configuration file is written in "
-                 "https://en.wikipedia.org/wiki/YAML[YAML] language.")),
+     tr(Lang,
+        ?T("The configuration file is written in "
+           "https://en.wikipedia.org/wiki/YAML[YAML] language.")),
      io_lib:nl(),
-     tr(Lang, ?T("WARNING: YAML is indentation sensitive, so make sure you respect "
-                 "indentation, or otherwise you will get pretty cryptic "
-                 "configuration errors.")),
+     tr(Lang,
+        ?T("WARNING: YAML is indentation sensitive, so make sure you respect "
+           "indentation, or otherwise you will get pretty cryptic "
+           "configuration errors.")),
      io_lib:nl(),
-     tr(Lang, ?T("Logically, configuration options are split into 3 main categories: "
-                 "'Modules', 'Listeners' and everything else called 'Top Level' options. "
-                 "Thus this document is split into 3 main chapters describing each "
-                 "category separately. So, the contents of ejabberd.yml will typically "
-                 "look like this:")),
+     tr(Lang,
+        ?T("Logically, configuration options are split into 3 main categories: "
+           "'Modules', 'Listeners' and everything else called 'Top Level' options. "
+           "Thus this document is split into 3 main chapters describing each "
+           "category separately. So, the contents of ejabberd.yml will typically "
+           "look like this:")),
      io_lib:nl(),
      "==========================",
      "[source,yaml]",
@@ -308,41 +337,47 @@ man_header(Lang) ->
      "----",
      "==========================",
      io_lib:nl(),
-     tr(Lang, ?T("Any configuration error (such as syntax error, unknown option "
-                 "or invalid option value) is fatal in the sense that ejabberd will "
-                 "refuse to load the whole configuration file and will not start or will "
-                 "abort configuration reload.")),
+     tr(Lang,
+        ?T("Any configuration error (such as syntax error, unknown option "
+           "or invalid option value) is fatal in the sense that ejabberd will "
+           "refuse to load the whole configuration file and will not start or will "
+           "abort configuration reload.")),
      io_lib:nl(),
-     tr(Lang, ?T("All options can be changed in runtime by running 'ejabberdctl "
-                 "reload-config' command. Configuration reload is atomic: either all options "
-                 "are accepted and applied simultaneously or the new configuration is "
-                 "refused without any impact on currently running configuration.")),
+     tr(Lang,
+        ?T("All options can be changed in runtime by running 'ejabberdctl "
+           "reload-config' command. Configuration reload is atomic: either all options "
+           "are accepted and applied simultaneously or the new configuration is "
+           "refused without any impact on currently running configuration.")),
      io_lib:nl(),
-     tr(Lang, ?T("Some options can be specified for particular virtual host(s) only "
-                 "using 'host_config' or 'append_host_config' options. Such options "
-                 "are called 'local'. Examples are 'modules', 'auth_method' and 'default_db'. "
-                 "The options that cannot be defined per virtual host are called 'global'. "
-                 "Examples are 'loglevel', 'certfiles' and 'listen'. It is a configuration "
-                 "mistake to put 'global' options under 'host_config' or 'append_host_config' "
-                 "section - ejabberd will refuse to load such configuration.")),
+     tr(Lang,
+        ?T("Some options can be specified for particular virtual host(s) only "
+           "using 'host_config' or 'append_host_config' options. Such options "
+           "are called 'local'. Examples are 'modules', 'auth_method' and 'default_db'. "
+           "The options that cannot be defined per virtual host are called 'global'. "
+           "Examples are 'loglevel', 'certfiles' and 'listen'. It is a configuration "
+           "mistake to put 'global' options under 'host_config' or 'append_host_config' "
+           "section - ejabberd will refuse to load such configuration.")),
      io_lib:nl(),
      str:format(
-       tr(Lang, ?T("It is not recommended to write ejabberd.yml from scratch. Instead it is "
-                   "better to start from \"default\" configuration file available at ~s. "
-                   "Once you get ejabberd running you can start changing configuration "
-                   "options to meet your requirements.")),
+       tr(Lang,
+          ?T("It is not recommended to write ejabberd.yml from scratch. Instead it is "
+             "better to start from \"default\" configuration file available at ~s. "
+             "Once you get ejabberd running you can start changing configuration "
+             "options to meet your requirements.")),
        [default_config_url()]),
      io_lib:nl(),
      str:format(
-       tr(Lang, ?T("Note that this document is intended to provide comprehensive description of "
-                   "all configuration options that can be consulted to understand the meaning "
-                   "of a particular option, its format and possible values. It will be quite "
-                   "hard to understand how to configure ejabberd by reading this document only "
-                   "- for this purpose the reader is recommended to read online Configuration "
-                   "Guide available at ~s.")),
+       tr(Lang,
+          ?T("Note that this document is intended to provide comprehensive description of "
+             "all configuration options that can be consulted to understand the meaning "
+             "of a particular option, its format and possible values. It will be quite "
+             "hard to understand how to configure ejabberd by reading this document only "
+             "- for this purpose the reader is recommended to read online Configuration "
+             "Guide available at ~s.")),
        [configuration_guide_url()]),
      io_lib:nl()].
 
+
 man_footer(Lang) ->
     {Year, _, _} = date(),
     [io_lib:nl(),
@@ -353,9 +388,10 @@ man_footer(Lang) ->
      "VERSION",
      "-------",
      str:format(
-       tr(Lang, ?T("This document describes the configuration file of ejabberd ~ts. "
-                   "Configuration options of other ejabberd versions "
-                   "may differ significantly.")),
+       tr(Lang,
+          ?T("This document describes the configuration file of ejabberd ~ts. "
+             "Configuration options of other ejabberd versions "
+             "may differ significantly.")),
        [ejabberd_config:version()]),
      io_lib:nl(),
      "REPORTING BUGS",
@@ -377,7 +413,8 @@ man_footer(Lang) ->
      "COPYING",
      "-------",
      "Copyright (c) 2002-" ++ integer_to_list(Year) ++
-         " https://www.process-one.net[ProcessOne]."].
+     " https://www.process-one.net[ProcessOne]."].
+
 
 tr(Lang, {Format, Args}) ->
     unicode:characters_to_list(
@@ -387,12 +424,14 @@ tr(Lang, {Format, Args}) ->
 tr(Lang, Txt) ->
     unicode:characters_to_list(translate:translate(Lang, iolist_to_binary(Txt))).
 
+
 tr_multi(Lang, Txt) when is_binary(Txt) ->
     tr_multi(Lang, [Txt]);
 tr_multi(Lang, {Format, Args}) ->
     tr_multi(Lang, [{Format, Args}]);
 tr_multi(Lang, Lines) when is_list(Lines) ->
-    [tr(Lang, Txt) || Txt <- Lines].
+    [ tr(Lang, Txt) || Txt <- Lines ].
+
 
 write_man(AsciiData) ->
     case file:get_cwd() of
@@ -425,12 +464,14 @@ write_man(AsciiData) ->
                                     [file:format_error(Reason)]))}
     end.
 
+
 have_a2x() ->
     case os:find_executable("a2x") of
         false -> false;
         Path -> {true, Path}
     end.
 
+
 run_a2x(Cwd, AsciiDocFile) ->
     case have_a2x() of
         false ->
@@ -445,6 +486,7 @@ run_a2x(Cwd, AsciiDocFile) ->
             end
     end.
 
+
 warn_undocumented_modules(Docs) ->
     lists:foreach(
       fun({M, _, DocOpts, Backends, _}) ->
@@ -452,8 +494,11 @@ warn_undocumented_modules(Docs) ->
               lists:foreach(
                 fun({SubM, _, SubOpts}) ->
                         warn_undocumented_module(SubM, SubOpts)
-                end, Backends)
-      end, Docs).
+                end,
+                Backends)
+      end,
+      Docs).
+
 
 warn_undocumented_module(M, DocOpts) ->
     try M:mod_options(ejabberd_config:get_myname()) of
@@ -471,11 +516,14 @@ warn_undocumented_module(M, DocOpts) ->
                           true ->
                               ok
                       end
-              end, Defaults)
-    catch _:undef ->
+              end,
+              Defaults)
+    catch
+        _:undef ->
             ok
     end.
 
+
 warn_undocumented_options(Docs) ->
     Opts = lists:flatmap(
              fun(M) ->
@@ -484,11 +532,14 @@ warn_undocumented_options(Docs) ->
                              lists:map(
                                fun({O, _}) -> O;
                                   (O) when is_atom(O) -> O
-                               end, Defaults)
-                     catch _:undef ->
+                               end,
+                               Defaults)
+                     catch
+                         _:undef ->
                              []
                      end
-             end, ejabberd_config:callback_modules(all)),
+             end,
+             ejabberd_config:callback_modules(all)),
     lists:foreach(
       fun(Opt) ->
               case lists:keymember(Opt, 1, Docs) of
@@ -497,19 +548,24 @@ warn_undocumented_options(Docs) ->
                   true ->
                       ok
               end
-      end, Opts).
+      end,
+      Opts).
+
 
 warn(Format, Args) ->
     io:format(standard_error, "Warning: " ++ Format ++ "~n", Args).
 
+
 strip_backend_suffix(M) ->
-    [H|T] = lists:reverse(string:tokens(atom_to_list(M), "_")),
+    [H | T] = lists:reverse(string:tokens(atom_to_list(M), "_")),
     {list_to_atom(string:join(lists:reverse(T), "_")), list_to_atom(H)}.
 
+
 default_config_url() ->
     "<https://github.com/processone/ejabberd/blob/" ++
-        binary_to_list(binary:part(ejabberd_config:version(), {0,5})) ++
-        "/ejabberd.yml.example>".
+    binary_to_list(binary:part(ejabberd_config:version(), {0, 5})) ++
+    "/ejabberd.yml.example>".
+
 
 configuration_guide_url() ->
     "<https://docs.ejabberd.im/admin/configuration>".

src/ejabberd_http_ws.erl

@@ -27,12 +27,25 @@
 -behaviour(xmpp_socket).
 -behaviour(p1_fsm).
 
--export([start/1, start_link/1, init/1, handle_event/3,
-	 handle_sync_event/4, code_change/4, handle_info/3,
-	 terminate/3, send_xml/2, setopts/2, sockname/1,
-	 peername/1, controlling_process/2, get_owner/1,
-	 reset_stream/1, close/1, change_shaper/2,
-	 socket_handoff/3, get_transport/1]).
+-export([start/1,
+         start_link/1,
+         init/1,
+         handle_event/3,
+         handle_sync_event/4,
+         code_change/4,
+         handle_info/3,
+         terminate/3,
+         send_xml/2,
+         setopts/2,
+         sockname/1,
+         peername/1,
+         controlling_process/2,
+         get_owner/1,
+         reset_stream/1,
+         close/1,
+         change_shaper/2,
+         socket_handoff/3,
+         get_transport/1]).
 
 -include("logger.hrl").
 
@@ -40,6 +53,10 @@
 
 -include("ejabberd_http.hrl").
 
+%%
+%% @efmt:off
+%% @indent-begin
+
 -record(state,
         {socket                       :: ws_socket(),
          ping_interval                :: non_neg_integer(),
@@ -48,11 +65,15 @@
          timeout                      :: non_neg_integer(),
          timer = make_ref()           :: reference(),
          input = []                   :: list(),
-	 active = false               :: boolean(),
-	 c2s_pid                      :: pid(),
+         active = false               :: boolean(),
+         c2s_pid                      :: pid(),
          ws                           :: {#ws{}, pid()}}).
 
-%-define(DBGFSM, true).
+%% @indent-end
+%% @efmt:on
+           %%
+
+           %%%-define(DBGFSM, true).
 
 -ifdef(DBGFSM).
 
@@ -67,56 +88,70 @@
 -type ws_socket() :: {http_ws, pid(), {inet:ip_address(), inet:port_number()}}.
 -export_type([ws_socket/0]).
 
+
 start(WS) ->
     p1_fsm:start(?MODULE, [WS], ?FSMOPTS).
 
+
 start_link(WS) ->
     p1_fsm:start_link(?MODULE, [WS], ?FSMOPTS).
 
+
 send_xml({http_ws, FsmRef, _IP}, Packet) ->
     case catch p1_fsm:sync_send_all_state_event(FsmRef,
-						    {send_xml, Packet},
-						    15000)
-    of
-	{'EXIT', {timeout, _}} -> {error, timeout};
-	{'EXIT', _} -> {error, einval};
-	Res -> Res
+                                                {send_xml, Packet},
+                                                15000) of
+        {'EXIT', {timeout, _}} -> {error, timeout};
+        {'EXIT', _} -> {error, einval};
+        Res -> Res
     end.
 
+
 setopts({http_ws, FsmRef, _IP}, Opts) ->
     case lists:member({active, once}, Opts) of
-      true ->
-	  p1_fsm:send_all_state_event(FsmRef,
-				       {activate, self()});
-      _ -> ok
+        true ->
+            p1_fsm:send_all_state_event(FsmRef,
+                                        {activate, self()});
+        _ -> ok
     end.
 
+
 sockname(_Socket) -> {ok, {{0, 0, 0, 0}, 0}}.
 
+
 peername({http_ws, _FsmRef, IP}) -> {ok, IP}.
 
+
 controlling_process(_Socket, _Pid) -> ok.
 
+
 close({http_ws, FsmRef, _IP}) ->
     catch p1_fsm:sync_send_all_state_event(FsmRef, close).
 
+
 reset_stream({http_ws, _FsmRef, _IP} = Socket) ->
     Socket.
 
+
 change_shaper({http_ws, FsmRef, _IP}, Shaper) ->
     p1_fsm:send_all_state_event(FsmRef, {new_shaper, Shaper}).
 
+
 get_transport(_Socket) ->
     websocket.
 
+
 get_owner({http_ws, FsmRef, _IP}) ->
     FsmRef.
 
+
 socket_handoff(LocalPath, Request, Opts) ->
     ejabberd_websocket:socket_handoff(LocalPath, Request, Opts, ?MODULE, fun get_human_html_xmlel/0).
 
+
 %%% Internal
 
+
 init([{#ws{ip = IP, http_opts = HOpts}, _} = WS]) ->
     SOpts = lists:filtermap(fun({stream_management, _}) -> true;
                                ({max_ack_queue, _}) -> true;
@@ -127,84 +162,100 @@ init([{#ws{ip = IP, http_opts = HOpts}, _} = WS]) ->
                                ({resend_on_timeout, _}) -> true;
                                ({access, _}) -> true;
                                (_) -> false
-                            end, HOpts),
+                            end,
+                            HOpts),
     Opts = ejabberd_c2s_config:get_c2s_limits() ++ SOpts,
     PingInterval = ejabberd_option:websocket_ping_interval(),
     WSTimeout = ejabberd_option:websocket_timeout(),
     Socket = {http_ws, self(), IP},
     ?DEBUG("Client connected through websocket ~p",
-	   [Socket]),
-    case ejabberd_c2s:start(?MODULE, Socket, [{receiver, self()}|Opts]) of
-	{ok, C2SPid} ->
-	    ejabberd_c2s:accept(C2SPid),
-	    Timer = erlang:start_timer(WSTimeout, self(), []),
-	    {ok, loop,
-	     #state{socket = Socket, timeout = WSTimeout,
-		    timer = Timer, ws = WS, c2s_pid = C2SPid,
-		    ping_interval = PingInterval}};
-	{error, Reason} ->
-	    {stop, Reason};
-	ignore ->
-	    ignore
+           [Socket]),
+    case ejabberd_c2s:start(?MODULE, Socket, [{receiver, self()} | Opts]) of
+        {ok, C2SPid} ->
+            ejabberd_c2s:accept(C2SPid),
+            Timer = erlang:start_timer(WSTimeout, self(), []),
+            {ok, loop,
+                 #state{
+                   socket = Socket,
+                   timeout = WSTimeout,
+                   timer = Timer,
+                   ws = WS,
+                   c2s_pid = C2SPid,
+                   ping_interval = PingInterval
+                  }};
+        {error, Reason} ->
+            {stop, Reason};
+        ignore ->
+            ignore
     end.
 
+
 handle_event({activate, From}, StateName, State) ->
     State1 = case State#state.input of
-		 [] -> State#state{active = true};
-		 Input ->
-		     lists:foreach(
-		       fun(I) when is_binary(I)->
-			       From ! {tcp, State#state.socket, I};
-			  (I2) ->
-			       From ! {tcp, State#state.socket, [I2]}
-		       end, Input),
-		     State#state{active = false, input = []}
-	     end,
+                 [] -> State#state{active = true};
+                 Input ->
+                     lists:foreach(
+                       fun(I) when is_binary(I) ->
+                               From ! {tcp, State#state.socket, I};
+                          (I2) ->
+                               From ! {tcp, State#state.socket, [I2]}
+                       end,
+                       Input),
+                     State#state{active = false, input = []}
+             end,
     {next_state, StateName, State1#state{c2s_pid = From}};
 handle_event({new_shaper, Shaper}, StateName, #state{ws = {_, WsPid}} = StateData) ->
     WsPid ! {new_shaper, Shaper},
     {next_state, StateName, StateData}.
 
-handle_sync_event({send_xml, Packet}, _From, StateName,
+
+handle_sync_event({send_xml, Packet},
+                  _From,
+                  StateName,
                   #state{ws = {_, WsPid}} = StateData) ->
     SN2 = case Packet of
-	      {xmlstreamstart, _, Attrs} ->
-		  Attrs2 = [{<<"xmlns">>, <<"urn:ietf:params:xml:ns:xmpp-framing">>} |
-			    lists:keydelete(<<"xmlns">>, 1, lists:keydelete(<<"xmlns:stream">>, 1, Attrs))],
-		  route_el(WsPid, #xmlel{name = <<"open">>, attrs = Attrs2}),
-		  StateName;
-	      {xmlstreamend, _} ->
-		  route_el(WsPid, #xmlel{name = <<"close">>,
-					 attrs = [{<<"xmlns">>, <<"urn:ietf:params:xml:ns:xmpp-framing">>}]}),
-		  stream_end_sent;
-	      {xmlstreamraw, <<"\r\n\r\n">>} ->
-		  % cdata ping
-		  StateName;
-	      {xmlstreamelement, #xmlel{name = Name2} = El2} ->
-		  El3 = case Name2 of
-			    <<"stream:", _/binary>> ->
-				fxml:replace_tag_attr(<<"xmlns:stream">>, ?NS_STREAM, El2);
-			    _ ->
-				case fxml:get_tag_attr_s(<<"xmlns">>, El2) of
-				    <<"">> ->
-					fxml:replace_tag_attr(<<"xmlns">>, <<"jabber:client">>, El2);
-				    _ ->
-					El2
-				end
-			end,
-		  route_el(WsPid, El3),
-		  StateName
-	  end,
+              {xmlstreamstart, _, Attrs} ->
+                  Attrs2 = [{<<"xmlns">>, <<"urn:ietf:params:xml:ns:xmpp-framing">>} | lists:keydelete(<<"xmlns">>, 1, lists:keydelete(<<"xmlns:stream">>, 1, Attrs))],
+                  route_el(WsPid, #xmlel{name = <<"open">>, attrs = Attrs2}),
+                  StateName;
+              {xmlstreamend, _} ->
+                  route_el(WsPid,
+                           #xmlel{
+                             name = <<"close">>,
+                             attrs = [{<<"xmlns">>, <<"urn:ietf:params:xml:ns:xmpp-framing">>}]
+                            }),
+                  stream_end_sent;
+              {xmlstreamraw, <<"\r\n\r\n">>} ->
+                  % cdata ping
+                  StateName;
+              {xmlstreamelement, #xmlel{name = Name2} = El2} ->
+                  El3 = case Name2 of
+                            <<"stream:", _/binary>> ->
+                                fxml:replace_tag_attr(<<"xmlns:stream">>, ?NS_STREAM, El2);
+                            _ ->
+                                case fxml:get_tag_attr_s(<<"xmlns">>, El2) of
+                                    <<"">> ->
+                                        fxml:replace_tag_attr(<<"xmlns">>, <<"jabber:client">>, El2);
+                                    _ ->
+                                        El2
+                                end
+                        end,
+                  route_el(WsPid, El3),
+                  StateName
+          end,
     {reply, ok, SN2, StateData};
 handle_sync_event(close, _From, StateName, #state{ws = {_, WsPid}} = StateData)
-    when StateName /= stream_end_sent ->
-    Close = #xmlel{name = <<"close">>,
-                   attrs = [{<<"xmlns">>, <<"urn:ietf:params:xml:ns:xmpp-framing">>}]},
+  when StateName /= stream_end_sent ->
+    Close = #xmlel{
+              name = <<"close">>,
+              attrs = [{<<"xmlns">>, <<"urn:ietf:params:xml:ns:xmpp-framing">>}]
+             },
     route_text(WsPid, fxml:element_to_binary(Close)),
     {stop, normal, StateData};
 handle_sync_event(close, _From, _StateName, StateData) ->
     {stop, normal, StateData}.
 
+
 handle_info(closed, _StateName, StateData) ->
     {stop, normal, StateData};
 handle_info({received, Packet}, StateName, StateDataI) ->
@@ -222,84 +273,116 @@ handle_info(PingPong, StateName, StateData) when PingPong == ping orelse
                                                  PingPong == pong ->
     StateData2 = setup_timers(StateData),
     {next_state, StateName,
-     StateData2#state{pong_expected = false}};
-handle_info({timeout, Timer, _}, _StateName,
-	    #state{timer = Timer} = StateData) ->
+                 StateData2#state{pong_expected = false}};
+handle_info({timeout, Timer, _},
+            _StateName,
+            #state{timer = Timer} = StateData) ->
     ?DEBUG("Closing websocket connection from hitting inactivity timeout", []),
     {stop, normal, StateData};
-handle_info({timeout, Timer, _}, StateName,
-	    #state{ping_timer = Timer, ws = {_, WsPid}} = StateData) ->
+handle_info({timeout, Timer, _},
+            StateName,
+            #state{ping_timer = Timer, ws = {_, WsPid}} = StateData) ->
     case StateData#state.pong_expected of
         false ->
             misc:cancel_timer(StateData#state.ping_timer),
             PingTimer = erlang:start_timer(StateData#state.ping_interval,
-                                           self(), []),
+                                           self(),
+                                           []),
             WsPid ! {ping, <<>>},
             {next_state, StateName,
-             StateData#state{ping_timer = PingTimer, pong_expected = true}};
+                         StateData#state{ping_timer = PingTimer, pong_expected = true}};
         true ->
-	    ?DEBUG("Closing websocket connection from missing pongs", []),
+            ?DEBUG("Closing websocket connection from missing pongs", []),
             {stop, normal, StateData}
     end;
 handle_info(_, StateName, StateData) ->
     {next_state, StateName, StateData}.
 
+
 code_change(_OldVsn, StateName, StateData, _Extra) ->
     {ok, StateName, StateData}.
 
+
 terminate(_Reason, _StateName, StateData) ->
     StateData#state.c2s_pid ! {tcp_closed, StateData#state.socket}.
 
+
 setup_timers(StateData) ->
     misc:cancel_timer(StateData#state.timer),
     Timer = erlang:start_timer(StateData#state.timeout,
-                               self(), []),
+                               self(),
+                               []),
     misc:cancel_timer(StateData#state.ping_timer),
     PingTimer = case StateData#state.ping_interval of
                     0 -> StateData#state.ping_timer;
                     V -> erlang:start_timer(V, self(), [])
                 end,
-     StateData#state{timer = Timer, ping_timer = PingTimer,
-                     pong_expected = false}.
+    StateData#state{
+      timer = Timer,
+      ping_timer = PingTimer,
+      pong_expected = false
+     }.
+
 
 get_human_html_xmlel() ->
     Heading = <<"ejabberd ", (misc:atom_to_binary(?MODULE))/binary>>,
-    #xmlel{name = <<"html">>,
-           attrs =
-               [{<<"xmlns">>, <<"http://www.w3.org/1999/xhtml">>}],
-           children =
-               [#xmlel{name = <<"head">>, attrs = [],
-                       children =
-                           [#xmlel{name = <<"title">>, attrs = [],
-                                   children = [{xmlcdata, Heading}]}]},
-                #xmlel{name = <<"body">>, attrs = [],
-                       children =
-                           [#xmlel{name = <<"h1">>, attrs = [],
-                                   children = [{xmlcdata, Heading}]},
-                            #xmlel{name = <<"p">>, attrs = [],
-                                   children =
-                                       [{xmlcdata, <<"An implementation of ">>},
-                                        #xmlel{name = <<"a">>,
-                                               attrs =
-                                                   [{<<"href">>,
-                                                     <<"http://tools.ietf.org/html/rfc6455">>}],
-                                               children =
-                                                   [{xmlcdata,
-                                                     <<"WebSocket protocol">>}]}]},
-                            #xmlel{name = <<"p">>, attrs = [],
-                                   children =
-                                       [{xmlcdata,
-                                         <<"This web page is only informative. To "
-                                           "use WebSocket connection you need a Jabber/XMPP "
-                                           "client that supports it.">>}]}]}]}.
+    #xmlel{
+      name = <<"html">>,
+      attrs =
+          [{<<"xmlns">>, <<"http://www.w3.org/1999/xhtml">>}],
+      children =
+          [#xmlel{
+             name = <<"head">>,
+             attrs = [],
+             children =
+                 [#xmlel{
+                    name = <<"title">>,
+                    attrs = [],
+                    children = [{xmlcdata, Heading}]
+                   }]
+            },
+           #xmlel{
+             name = <<"body">>,
+             attrs = [],
+             children =
+                 [#xmlel{
+                    name = <<"h1">>,
+                    attrs = [],
+                    children = [{xmlcdata, Heading}]
+                   },
+                  #xmlel{
+                    name = <<"p">>,
+                    attrs = [],
+                    children =
+                        [{xmlcdata, <<"An implementation of ">>},
+                         #xmlel{
+                           name = <<"a">>,
+                           attrs =
+                               [{<<"href">>,
+                                 <<"http://tools.ietf.org/html/rfc6455">>}],
+                           children =
+                               [{xmlcdata,
+                                 <<"WebSocket protocol">>}]
+                          }]
+                   },
+                  #xmlel{
+                    name = <<"p">>,
+                    attrs = [],
+                    children =
+                        [{xmlcdata,
+                          <<"This web page is only informative. To "
+                            "use WebSocket connection you need a Jabber/XMPP "
+                            "client that supports it.">>}]
+                   }]
+            }]
+     }.
 
 
 parse(State, Data) ->
     El = fxml_stream:parse_element(Data),
     case El of
         #xmlel{name = <<"open">>, attrs = Attrs} ->
-            Attrs2 = [{<<"xmlns:stream">>, ?NS_STREAM}, {<<"xmlns">>, <<"jabber:client">>} |
-                      lists:keydelete(<<"xmlns">>, 1, lists:keydelete(<<"xmlns:stream">>, 1, Attrs))],
+            Attrs2 = [{<<"xmlns:stream">>, ?NS_STREAM}, {<<"xmlns">>, <<"jabber:client">>} | lists:keydelete(<<"xmlns">>, 1, lists:keydelete(<<"xmlns:stream">>, 1, Attrs))],
             {State, [{xmlstreamstart, <<"stream:stream">>, Attrs2}]};
         #xmlel{name = <<"close">>} ->
             {State, [{xmlstreamend, <<"stream:stream">>}]};
@@ -309,6 +392,7 @@ parse(State, Data) ->
             {State, [El]}
     end.
 
+
 -spec route_text(pid(), binary()) -> ok.
 route_text(Pid, Data) ->
     Pid ! {text_with_reply, Data, self()},
@@ -317,6 +401,7 @@ route_text(Pid, Data) ->
             ok
     end.
 
+
 -spec route_el(pid(), xmlel() | cdata()) -> ok.
 route_el(Pid, Data) ->
     route_text(Pid, fxml:element_to_binary(Data)).

src/ejabberd_iq.erl

@@ -31,22 +31,29 @@
 -export([start_link/0, route/4, dispatch/1]).
 
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2,
-	 terminate/2, code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 
 -include_lib("xmpp/include/xmpp.hrl").
+
 -include("logger.hrl").
 -include("ejabberd_stacktrace.hrl").
 
 -record(state, {expire = infinity :: timeout()}).
 -type state() :: #state{}.
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
 start_link() ->
     gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
 
+
 -spec route(iq(), atom() | pid(), term(), non_neg_integer()) -> ok.
 route(#iq{type = T} = IQ, Proc, Ctx, Timeout) when T == set; T == get ->
     Expire = current_time() + Timeout,
@@ -56,17 +63,19 @@ route(#iq{type = T} = IQ, Proc, Ctx, Timeout) when T == set; T == get ->
     gen_server:cast(?MODULE, {restart_timer, Expire}),
     ejabberd_router:route(IQ#iq{id = ID}).
 
+
 -spec dispatch(iq()) -> boolean().
 dispatch(#iq{type = T, id = ID} = IQ) when T == error; T == result ->
     case decode_id(ID) of
-	{ok, Expire, Rnd, Node} ->
-	    ejabberd_cluster:send({?MODULE, Node}, {route, IQ, {Expire, Rnd}});
-	error ->
-	    false
+        {ok, Expire, Rnd, Node} ->
+            ejabberd_cluster:send({?MODULE, Node}, {route, IQ, {Expire, Rnd}});
+        error ->
+            false
     end;
 dispatch(_) ->
     false.
 
+
 %%%===================================================================
 %%% gen_server callbacks
 %%%===================================================================
@@ -74,10 +83,12 @@ init([]) ->
     _ = ets:new(?MODULE, [named_table, ordered_set, public]),
     {ok, #state{}}.
 
+
 handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     noreply(State).
 
+
 handle_cast({restart_timer, Expire}, State) ->
     State1 = State#state{expire = min(Expire, State#state.expire)},
     noreply(State1);
@@ -85,13 +96,14 @@ handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     noreply(State).
 
+
 handle_info({route, IQ, Key}, State) ->
     case ets:lookup(?MODULE, Key) of
-	[{_, Proc, Ctx}] ->
-	    callback(Proc, IQ, Ctx),
-	    ets:delete(?MODULE, Key);
-	[] ->
-	    ok
+        [{_, Proc, Ctx}] ->
+            callback(Proc, IQ, Ctx),
+            ets:delete(?MODULE, Key);
+        [] ->
+            ok
     end,
     noreply(State);
 handle_info(timeout, State) ->
@@ -101,12 +113,15 @@ handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     noreply(State).
 
+
 terminate(_Reason, _State) ->
     ok.
 
+
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
@@ -114,35 +129,38 @@ code_change(_OldVsn, State, _Extra) ->
 current_time() ->
     erlang:system_time(millisecond).
 
--spec clean({non_neg_integer(), binary()} | '$end_of_table')
-	   -> non_neg_integer() | infinity.
+
+-spec clean({non_neg_integer(), binary()} | '$end_of_table') ->
+          non_neg_integer() | infinity.
 clean({Expire, _} = Key) ->
     case current_time() of
-	Time when Time >= Expire ->
-	    case ets:lookup(?MODULE, Key) of
-		[{_, Proc, Ctx}] ->
-		    callback(Proc, timeout, Ctx),
-		    ets:delete(?MODULE, Key);
-		[] ->
-		    ok
-	    end,
-	    clean(ets:next(?MODULE, Key));
-	_ ->
-	    Expire
+        Time when Time >= Expire ->
+            case ets:lookup(?MODULE, Key) of
+                [{_, Proc, Ctx}] ->
+                    callback(Proc, timeout, Ctx),
+                    ets:delete(?MODULE, Key);
+                [] ->
+                    ok
+            end,
+            clean(ets:next(?MODULE, Key));
+        _ ->
+            Expire
     end;
 clean('$end_of_table') ->
     infinity.
 
+
 -spec noreply(state()) -> {noreply, state()} | {noreply, state(), non_neg_integer()}.
 noreply(#state{expire = Expire} = State) ->
     case Expire of
-	infinity ->
-	    {noreply, State};
-	_ ->
-	    Timeout = max(0, Expire - current_time()),
-	    {noreply, State, Timeout}
+        infinity ->
+            {noreply, State};
+        _ ->
+            Timeout = max(0, Expire - current_time()),
+            {noreply, State, Timeout}
     end.
 
+
 -spec encode_id(non_neg_integer(), binary()) -> binary().
 encode_id(Expire, Rnd) ->
     ExpireBin = integer_to_binary(Expire),
@@ -150,39 +168,46 @@ encode_id(Expire, Rnd) ->
     CheckSum = calc_checksum(<<ExpireBin/binary, Rnd/binary, Node/binary>>),
     <<"rr-", ExpireBin/binary, $-, Rnd/binary, $-, CheckSum/binary, $-, Node/binary>>.
 
+
 -spec decode_id(binary()) -> {ok, non_neg_integer(), binary(), atom()} | error.
 decode_id(<<"rr-", ID/binary>>) ->
     try
-	[ExpireBin, Tail] = binary:split(ID, <<"-">>),
-	[Rnd, Rest] = binary:split(Tail, <<"-">>),
-	[CheckSum, NodeBin] = binary:split(Rest, <<"-">>),
-	CheckSum = calc_checksum(<<ExpireBin/binary, Rnd/binary, NodeBin/binary>>),
-	Node = ejabberd_cluster:get_node_by_id(NodeBin),
-	Expire = binary_to_integer(ExpireBin),
-	{ok, Expire, Rnd, Node}
-    catch _:{badmatch, _} ->
-	    error
+        [ExpireBin, Tail] = binary:split(ID, <<"-">>),
+        [Rnd, Rest] = binary:split(Tail, <<"-">>),
+        [CheckSum, NodeBin] = binary:split(Rest, <<"-">>),
+        CheckSum = calc_checksum(<<ExpireBin/binary, Rnd/binary, NodeBin/binary>>),
+        Node = ejabberd_cluster:get_node_by_id(NodeBin),
+        Expire = binary_to_integer(ExpireBin),
+        {ok, Expire, Rnd, Node}
+    catch
+        _:{badmatch, _} ->
+            error
     end;
 decode_id(_) ->
     error.
 
+
 -spec calc_checksum(binary()) -> binary().
 calc_checksum(Data) ->
     Key = ejabberd_config:get_shared_key(),
     base64:encode(crypto:hash(sha, <<Data/binary, Key/binary>>)).
 
+
 -spec callback(atom() | pid(), #iq{} | timeout, term()) -> any().
 callback(undefined, IQRes, Fun) ->
-    try Fun(IQRes)
-    catch ?EX_RULE(Class, Reason, St) ->
-	    StackTrace = ?EX_STACK(St),
-	    ?ERROR_MSG("Failed to process iq response:~n~ts~n** ~ts",
-		       [xmpp:pp(IQRes),
-			misc:format_exception(2, Class, Reason, StackTrace)])
+    try
+        Fun(IQRes)
+    catch
+        ?EX_RULE(Class, Reason, St) ->
+            StackTrace = ?EX_STACK(St),
+            ?ERROR_MSG("Failed to process iq response:~n~ts~n** ~ts",
+                       [xmpp:pp(IQRes),
+                        misc:format_exception(2, Class, Reason, StackTrace)])
     end;
 callback(Proc, IQRes, Ctx) ->
     try
         Proc ! {iq_reply, IQRes, Ctx}
-    catch _:badarg ->
-        ok
+    catch
+        _:badarg ->
+            ok
     end.

src/ejabberd_local.erl

@@ -33,26 +33,34 @@
 -export([start/0, start_link/0]).
 
 -export([route/1,
-	 get_features/1,
-	 bounce_resource_packet/1,
-	 host_up/1, host_down/1]).
+         get_features/1,
+         bounce_resource_packet/1,
+         host_up/1,
+         host_down/1]).
 
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2,
-	 handle_info/2, terminate/2, code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 
 %% deprecated functions: use ejabberd_router:route_iq/3,4
 -export([route_iq/2, route_iq/3]).
 -deprecated([{route_iq, 2}, {route_iq, 3}]).
 
 -include("logger.hrl").
+
 -include_lib("stdlib/include/ms_transform.hrl").
 -include_lib("xmpp/include/xmpp.hrl").
+
 -include("ejabberd_stacktrace.hrl").
 -include("translate.hrl").
 
 -record(state, {}).
 
+
 %%====================================================================
 %% API
 %%====================================================================
@@ -62,37 +70,49 @@
 %%--------------------------------------------------------------------
 start() ->
     ChildSpec = {?MODULE, {?MODULE, start_link, []},
-		 transient, 1000, worker, [?MODULE]},
+                          transient,
+                          1000,
+                          worker,
+                          [?MODULE]},
     supervisor:start_child(ejabberd_sup, ChildSpec).
 
+
 start_link() ->
-    gen_server:start_link({local, ?MODULE}, ?MODULE, [],
-			  []).
+    gen_server:start_link({local, ?MODULE},
+                          ?MODULE,
+                          [],
+                          []).
+
 
 -spec route(stanza()) -> ok.
 route(Packet) ->
     ?DEBUG("Local route:~n~ts", [xmpp:pp(Packet)]),
     Type = xmpp:get_type(Packet),
     To = xmpp:get_to(Packet),
-    if To#jid.luser /= <<"">> ->
-	    ejabberd_sm:route(Packet);
-       is_record(Packet, iq), To#jid.lresource == <<"">> ->
-	    gen_iq_handler:handle(?MODULE, Packet);
-       Type == result; Type == error ->
-	    ok;
-       true ->
-	    ejabberd_hooks:run(local_send_to_resource_hook,
-			       To#jid.lserver, [Packet])
+    if
+        To#jid.luser /= <<"">> ->
+            ejabberd_sm:route(Packet);
+        is_record(Packet, iq), To#jid.lresource == <<"">> ->
+            gen_iq_handler:handle(?MODULE, Packet);
+        Type == result; Type == error ->
+            ok;
+        true ->
+            ejabberd_hooks:run(local_send_to_resource_hook,
+                               To#jid.lserver,
+                               [Packet])
     end.
 
+
 -spec route_iq(iq(), function()) -> ok.
 route_iq(IQ, Fun) ->
     route_iq(IQ, Fun, undefined).
 
+
 -spec route_iq(iq(), function(), undefined | non_neg_integer()) -> ok.
 route_iq(IQ, Fun, Timeout) ->
     ejabberd_router:route_iq(IQ, Fun, undefined, Timeout).
 
+
 -spec bounce_resource_packet(stanza()) -> ok | stop.
 bounce_resource_packet(#presence{to = #jid{lresource = <<"">>}}) ->
     ok;
@@ -105,14 +125,17 @@ bounce_resource_packet(Packet) ->
     ejabberd_router:route_error(Packet, Err),
     stop.
 
+
 -spec get_features(binary()) -> [binary()].
 get_features(Host) ->
     gen_iq_handler:get_features(?MODULE, Host).
 
+
 %%====================================================================
 %% gen_server callbacks
 %%====================================================================
 
+
 init([]) ->
     process_flag(trap_exit, true),
     lists:foreach(fun host_up/1, ejabberd_option:hosts()),
@@ -122,14 +145,17 @@ init([]) ->
     update_table(),
     {ok, #state{}}.
 
+
 handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 handle_info({route, Packet}, State) ->
     route(Packet),
     {noreply, State};
@@ -137,15 +163,18 @@ handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 terminate(_Reason, _State) ->
     lists:foreach(fun host_down/1, ejabberd_option:hosts()),
     ejabberd_hooks:delete(host_up, ?MODULE, host_up, 10),
     ejabberd_hooks:delete(host_down, ?MODULE, host_down, 100),
     ok.
 
+
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 %%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
@@ -154,20 +183,28 @@ update_table() ->
     catch mnesia:delete_table(iq_response),
     ok.
 
+
 host_up(Host) ->
     Owner = case whereis(?MODULE) of
-		undefined -> self();
-		Pid -> Pid
-	    end,
+                undefined -> self();
+                Pid -> Pid
+            end,
     ejabberd_router:register_route(Host, Host, {apply, ?MODULE, route}, Owner),
-    ejabberd_hooks:add(local_send_to_resource_hook, Host,
-		       ?MODULE, bounce_resource_packet, 100).
+    ejabberd_hooks:add(local_send_to_resource_hook,
+                       Host,
+                       ?MODULE,
+                       bounce_resource_packet,
+                       100).
+
 
 host_down(Host) ->
     Owner = case whereis(?MODULE) of
-		undefined -> self();
-		Pid -> Pid
-	    end,
+                undefined -> self();
+                Pid -> Pid
+            end,
     ejabberd_router:unregister_route(Host, Owner),
-    ejabberd_hooks:delete(local_send_to_resource_hook, Host,
-			  ?MODULE, bounce_resource_packet, 100).
+    ejabberd_hooks:delete(local_send_to_resource_hook,
+                          Host,
+                          ?MODULE,
+                          bounce_resource_packet,
+                          100).

src/ejabberd_logger.erl

@@ -34,42 +34,52 @@
 %% Deprecated functions
 -export([restart/0, reopen_log/0, rotate_log/0]).
 -deprecated([{restart, 0},
-	     {reopen_log, 0},
-	     {rotate_log, 0}]).
+             {reopen_log, 0},
+             {rotate_log, 0}]).
 
--type loglevel() :: none | emergency | alert | critical |
-		    error | warning | notice | info | debug.
+-type loglevel() :: none |
+                    emergency |
+                    alert |
+                    critical |
+                    error |
+                    warning |
+                    notice |
+                    info |
+                    debug.
 
 -define(is_loglevel(L),
-	((L == none) or (L == emergency) or (L == alert)
-	 or (L == critical) or (L == error) or (L == warning)
-	 or (L == notice) or (L == info) or (L == debug))).
+        ((L == none) or (L == emergency) or (L == alert) or
+         (L == critical) or (L == error) or (L == warning) or
+         (L == notice) or (L == info) or (L == debug))).
 
 -export_type([loglevel/0]).
 
 -include("logger.hrl").
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
 -spec get_log_path() -> string().
 get_log_path() ->
     case ejabberd_config:env_binary_to_list(ejabberd, log_path) of
-	{ok, Path} ->
-	    Path;
-	undefined ->
-	    case os:getenv("EJABBERD_LOG_PATH") of
-		false ->
-		    "ejabberd.log";
-		Path ->
-		    Path
-	    end
+        {ok, Path} ->
+            Path;
+        undefined ->
+            case os:getenv("EJABBERD_LOG_PATH") of
+                false ->
+                    "ejabberd.log";
+                Path ->
+                    Path
+            end
     end.
 
+
 -spec loglevels() -> [loglevel(), ...].
 loglevels() ->
     [none, emergency, alert, critical, error, warning, notice, info, debug].
 
+
 -spec convert_loglevel(0..5) -> loglevel().
 convert_loglevel(0) -> none;
 convert_loglevel(1) -> critical;
@@ -78,16 +88,18 @@ convert_loglevel(3) -> warning;
 convert_loglevel(4) -> info;
 convert_loglevel(5) -> debug.
 
+
 quiet_mode() ->
     case application:get_env(ejabberd, quiet) of
-	{ok, true} -> true;
-	_ -> false
+        {ok, true} -> true;
+        _ -> false
     end.
 
+
 -spec get_integer_env(atom(), T) -> T.
 get_integer_env(Name, Default) ->
     case application:get_env(ejabberd, Name) of
-        {ok, I} when is_integer(I), I>=0 ->
+        {ok, I} when is_integer(I), I >= 0 ->
             I;
         {ok, infinity} ->
             infinity;
@@ -100,7 +112,10 @@ get_integer_env(Name, Default) ->
             Default
     end.
 
+
 -ifdef(LAGER).
+
+
 -spec get_string_env(atom(), T) -> T.
 get_string_env(Name, Default) ->
     case application:get_env(ejabberd, Name) of
@@ -115,9 +130,11 @@ get_string_env(Name, Default) ->
             Default
     end.
 
+
 start() ->
     start(info).
 
+
 start(Level) ->
     StartedApps = application:which_applications(5000),
     case lists:keyfind(logger, 1, StartedApps) of
@@ -131,6 +148,7 @@ start(Level) ->
             do_start(Level)
     end.
 
+
 do_start_for_logger(Level) ->
     application:load(sasl),
     application:set_env(sasl, sasl_error_logger, false),
@@ -142,6 +160,7 @@ do_start_for_logger(Level) ->
     ejabberd:start_app(lager),
     ok.
 
+
 do_start(Level) ->
     application:load(sasl),
     application:set_env(sasl, sasl_error_logger, false),
@@ -151,48 +170,60 @@ do_start(Level) ->
     ErrorLog = filename:join([Dir, "error.log"]),
     CrashLog = filename:join([Dir, "crash.log"]),
     LogRotateDate = get_string_env(log_rotate_date, ""),
-    LogRotateSize = case get_integer_env(log_rotate_size, 10*1024*1024) of
+    LogRotateSize = case get_integer_env(log_rotate_size, 10 * 1024 * 1024) of
                         infinity -> 0;
                         V -> V
                     end,
     LogRotateCount = get_integer_env(log_rotate_count, 1),
     LogRateLimit = get_integer_env(log_rate_limit, 100),
     ConsoleLevel0 = case quiet_mode() of
-		        true -> critical;
-		        _ -> Level
-		    end,
+                        true -> critical;
+                        _ -> Level
+                    end,
     ConsoleLevel = case get_lager_version() >= "3.6.0" of
-		       true -> [{level, ConsoleLevel0}];
-		       false -> ConsoleLevel0
-		   end,
+                       true -> [{level, ConsoleLevel0}];
+                       false -> ConsoleLevel0
+                   end,
     application:set_env(lager, error_logger_hwm, LogRateLimit),
     application:set_env(
-      lager, handlers,
+      lager,
+      handlers,
       [{lager_console_backend, ConsoleLevel},
-       {lager_file_backend, [{file, ConsoleLog}, {level, Level}, {date, LogRotateDate},
-                             {count, LogRotateCount}, {size, LogRotateSize}]},
-       {lager_file_backend, [{file, ErrorLog}, {level, error}, {date, LogRotateDate},
-                             {count, LogRotateCount}, {size, LogRotateSize}]}]),
+       {lager_file_backend, [{file, ConsoleLog},
+                             {level, Level},
+                             {date, LogRotateDate},
+                             {count, LogRotateCount},
+                             {size, LogRotateSize}]},
+       {lager_file_backend, [{file, ErrorLog},
+                             {level, error},
+                             {date, LogRotateDate},
+                             {count, LogRotateCount},
+                             {size, LogRotateSize}]}]),
     application:set_env(lager, crash_log, CrashLog),
     application:set_env(lager, crash_log_date, LogRotateDate),
     application:set_env(lager, crash_log_size, LogRotateSize),
     application:set_env(lager, crash_log_count, LogRotateCount),
     ejabberd:start_app(lager),
     lists:foreach(fun(Handler) ->
-			  lager:set_loghwm(Handler, LogRateLimit)
-		  end, gen_event:which_handlers(lager_event)).
+                          lager:set_loghwm(Handler, LogRateLimit)
+                  end,
+                  gen_event:which_handlers(lager_event)).
+
 
 restart() ->
     Level = ejabberd_option:loglevel(),
     application:stop(lager),
     start(Level).
 
+
 config_reloaded() ->
     ok.
 
+
 reopen_log() ->
     ok.
 
+
 rotate_log() ->
     catch lager_crash_log ! rotate,
     lists:foreach(
@@ -200,7 +231,9 @@ rotate_log() ->
               whereis(lager_event) ! {rotate, File};
          (_) ->
               ok
-      end, gen_event:which_handlers(lager_event)).
+      end,
+      gen_event:which_handlers(lager_event)).
+
 
 get() ->
     Handlers = get_lager_handlers(),
@@ -211,9 +244,11 @@ get() ->
                    (_, Acc) ->
                         Acc
                 end,
-                none, Handlers).
+                none,
+                Handlers).
 
-set(N) when is_integer(N), N>=0, N=<5 ->
+
+set(N) when is_integer(N), N >= 0, N =< 5 ->
     set(convert_loglevel(N));
 set(Level) when ?is_loglevel(Level) ->
     case get() of
@@ -231,99 +266,119 @@ set(Level) when ?is_loglevel(Level) ->
                       lager:set_loglevel(H, Level);
                  (_) ->
                       ok
-              end, get_lager_handlers())
+              end,
+              get_lager_handlers())
     end,
     case Level of
-	debug -> xmpp:set_config([{debug, true}]);
-	_ -> xmpp:set_config([{debug, false}])
+        debug -> xmpp:set_config([{debug, true}]);
+        _ -> xmpp:set_config([{debug, false}])
     end.
 
+
 get_lager_handlers() ->
     case catch gen_event:which_handlers(lager_event) of
-        {'EXIT',noproc} ->
+        {'EXIT', noproc} ->
             [];
         Result ->
             Result
     end.
 
+
 -spec get_lager_version() -> string().
 get_lager_version() ->
     Apps = application:loaded_applications(),
     case lists:keyfind(lager, 1, Apps) of
-	{_, _, Vsn} -> Vsn;
-	false -> "0.0.0"
+        {_, _, Vsn} -> Vsn;
+        false -> "0.0.0"
     end.
 
+
 set_modules_fully_logged(_) -> ok.
 
+
 flush() ->
     application:stop(lager),
     application:stop(sasl).
 
+
 -else.
 -include_lib("kernel/include/logger.hrl").
 
+
 -spec start() -> ok | {error, term()}.
 start() ->
     start(info).
 
+
 start(Level) ->
     EjabberdLog = get_log_path(),
     Dir = filename:dirname(EjabberdLog),
     ErrorLog = filename:join([Dir, "error.log"]),
-    LogRotateSize = get_integer_env(log_rotate_size, 10*1024*1024),
+    LogRotateSize = get_integer_env(log_rotate_size, 10 * 1024 * 1024),
     LogRotateCount = get_integer_env(log_rotate_count, 1),
     LogBurstLimitWindowTime = get_integer_env(log_burst_limit_window_time, 1000),
     LogBurstLimitCount = get_integer_env(log_burst_limit_count, 500),
-    Config = #{max_no_bytes => LogRotateSize,
-	       max_no_files => LogRotateCount,
-	       filesync_repeat_interval => no_repeat,
-	       file_check => 1000,
-	       sync_mode_qlen => 1000,
-	       drop_mode_qlen => 1000,
-	       flush_qlen => 5000,
-	       burst_limit_window_time => LogBurstLimitWindowTime,
-	       burst_limit_max_count => LogBurstLimitCount},
-    FmtConfig = #{legacy_header => false,
-		  time_designator => $\s,
-		  max_size => 100*1024,
-		  single_line => false},
+    Config = #{
+               max_no_bytes => LogRotateSize,
+               max_no_files => LogRotateCount,
+               filesync_repeat_interval => no_repeat,
+               file_check => 1000,
+               sync_mode_qlen => 1000,
+               drop_mode_qlen => 1000,
+               flush_qlen => 5000,
+               burst_limit_window_time => LogBurstLimitWindowTime,
+               burst_limit_max_count => LogBurstLimitCount
+              },
+    FmtConfig = #{
+                  legacy_header => false,
+                  time_designator => $\s,
+                  max_size => 100 * 1024,
+                  single_line => false
+                 },
     FileFmtConfig = FmtConfig#{template => file_template()},
     ConsoleFmtConfig = FmtConfig#{template => console_template()},
     try
-	ok = logger:set_primary_config(level, Level),
-	DefaultHandlerId = get_default_handlerid(),
-	ok = logger:update_formatter_config(DefaultHandlerId, ConsoleFmtConfig),
-	case quiet_mode() of
-	    true ->
-		ok = logger:set_handler_config(DefaultHandlerId, level, critical);
-	    _ ->
-		ok
-	end,
-	case logger:add_primary_filter(progress_report,
-				       {fun ?MODULE:progress_filter/2, stop}) of
-	    ok -> ok;
-	    {error, {already_exist, _}} -> ok
-	end,
-	case logger:add_handler(ejabberd_log, logger_std_h,
-				#{level => all,
-				  config => Config#{file => EjabberdLog},
-				  formatter => {logger_formatter, FileFmtConfig}}) of
-	    ok -> ok;
-	    {error, {already_exist, _}} -> ok
-	end,
-	case logger:add_handler(error_log, logger_std_h,
-				#{level => error,
-				  config => Config#{file => ErrorLog},
-				  formatter => {logger_formatter, FileFmtConfig}}) of
-	    ok -> ok;
-	    {error, {already_exist, _}} -> ok
-	end
-    catch _:{Tag, Err} when Tag == badmatch; Tag == case_clause ->
-	    ?LOG_CRITICAL("Failed to set logging: ~p", [Err]),
-	    Err
+        ok = logger:set_primary_config(level, Level),
+        DefaultHandlerId = get_default_handlerid(),
+        ok = logger:update_formatter_config(DefaultHandlerId, ConsoleFmtConfig),
+        case quiet_mode() of
+            true ->
+                ok = logger:set_handler_config(DefaultHandlerId, level, critical);
+            _ ->
+                ok
+        end,
+        case logger:add_primary_filter(progress_report,
+                                       {fun ?MODULE:progress_filter/2, stop}) of
+            ok -> ok;
+            {error, {already_exist, _}} -> ok
+        end,
+        case logger:add_handler(ejabberd_log,
+                                logger_std_h,
+                                #{
+                                  level => all,
+                                  config => Config#{file => EjabberdLog},
+                                  formatter => {logger_formatter, FileFmtConfig}
+                                 }) of
+            ok -> ok;
+            {error, {already_exist, _}} -> ok
+        end,
+        case logger:add_handler(error_log,
+                                logger_std_h,
+                                #{
+                                  level => error,
+                                  config => Config#{file => ErrorLog},
+                                  formatter => {logger_formatter, FileFmtConfig}
+                                 }) of
+            ok -> ok;
+            {error, {already_exist, _}} -> ok
+        end
+    catch
+        _:{Tag, Err} when Tag == badmatch; Tag == case_clause ->
+            ?LOG_CRITICAL("Failed to set logging: ~p", [Err]),
+            Err
     end.
 
+
 get_default_handlerid() ->
     Ids = logger:get_handler_ids(),
     case lists:member(default, Ids) of
@@ -331,10 +386,12 @@ get_default_handlerid() ->
         false -> hd(Ids)
     end.
 
+
 -spec restart() -> ok.
 restart() ->
     ok.
 
+
 -spec config_reloaded() -> ok.
 config_reloaded() ->
     LogRotateSize = ejabberd_option:log_rotate_size(),
@@ -342,106 +399,138 @@ config_reloaded() ->
     LogBurstLimitWindowTime = ejabberd_option:log_burst_limit_window_time(),
     LogBurstLimitCount = ejabberd_option:log_burst_limit_count(),
     lists:foreach(
-	fun(Handler) ->
-	    case logger:get_handler_config(Handler) of
-		{ok, #{config := Config}} ->
-		    Config2 = Config#{
-			max_no_bytes => LogRotateSize,
-			max_no_files => LogRotateCount,
-			burst_limit_window_time => LogBurstLimitWindowTime,
-			burst_limit_max_count => LogBurstLimitCount},
-		    logger:update_handler_config(Handler, config, Config2);
-		_ ->
-		    ok
-	    end
-	end, [ejabberd_log, error_log]).
+      fun(Handler) ->
+              case logger:get_handler_config(Handler) of
+                  {ok, #{config := Config}} ->
+                      Config2 = Config#{
+                                  max_no_bytes => LogRotateSize,
+                                  max_no_files => LogRotateCount,
+                                  burst_limit_window_time => LogBurstLimitWindowTime,
+                                  burst_limit_max_count => LogBurstLimitCount
+                                 },
+                      logger:update_handler_config(Handler, config, Config2);
+                  _ ->
+                      ok
+              end
+      end,
+      [ejabberd_log, error_log]).
 
-progress_filter(#{level:=info,msg:={report,#{label:={_,progress}}}} = Event, _) ->
+
+progress_filter(#{level := info, msg := {report, #{label := {_, progress}}}} = Event, _) ->
     case get() of
-	debug ->
-	    logger_filters:progress(Event#{level => debug}, log);
-	_ ->
-	    stop
+        debug ->
+            logger_filters:progress(Event#{level => debug}, log);
+        _ ->
+            stop
     end;
 progress_filter(Event, _) ->
     Event.
 
+
 -ifdef(ELIXIR_ENABLED).
+
+
 console_template() ->
-    case (false /= code:is_loaded('Elixir.Logger'))
-        andalso
-        'Elixir.System':version() >= <<"1.15">> of
+    case (false /= code:is_loaded('Elixir.Logger')) andalso
+         'Elixir.System':version() >= <<"1.15">> of
         true ->
             {ok, DC} = logger:get_handler_config(default),
             MessageFormat = case maps:get(formatter, DC) of
-                %% https://hexdocs.pm/logger/1.17.2/Logger.Formatter.html#module-formatting
-                {'Elixir.Logger.Formatter', _} ->
-                    message;
-                %% https://www.erlang.org/doc/apps/kernel/logger_formatter#t:template/0
-                {logger_formatter, _} ->
-                    msg
-            end,
+                                %% https://hexdocs.pm/logger/1.17.2/Logger.Formatter.html#module-formatting
+                                {'Elixir.Logger.Formatter', _} ->
+                                    message;
+                                %% https://www.erlang.org/doc/apps/kernel/logger_formatter#t:template/0
+                                {logger_formatter, _} ->
+                                    msg
+                            end,
             [date, " ", time, " [", level, "] ", MessageFormat, "\n"];
         false ->
             [time, " [", level, "] " | msg()]
     end.
+
+
 msg() ->
     [{logger_formatter, [[logger_formatter, title], ":", io_lib:nl()], []},
-     msg, io_lib:nl()].
+     msg,
+     io_lib:nl()].
+
+
 -else.
+
+
 console_template() ->
     [time, " ", ?CLEAD, ?CDEFAULT, clevel, "[", level, "] ", ?CMID, ?CDEFAULT, ctext | msg()].
+
+
 msg() ->
     [{logger_formatter, [[logger_formatter, title], ":", io_lib:nl()], []},
-     msg, ?CCLEAN, io_lib:nl()].
+     msg,
+     ?CCLEAN,
+     io_lib:nl()].
+
+
 -endif.
 
+
 file_template() ->
-    [time, " [", level, "] ", pid,
-     {mfa, ["@", mfa, {line, [":", line], []}], []}, " " | msg()].
+    [time,
+     " [",
+     level,
+     "] ",
+     pid,
+     {mfa, ["@", mfa, {line, [":", line], []}], []},
+     " " | msg()].
+
 
 -spec reopen_log() -> ok.
 reopen_log() ->
     ok.
 
+
 -spec rotate_log() -> ok.
 rotate_log() ->
     ok.
 
+
 -spec get() -> loglevel().
 get() ->
     #{level := Level} = logger:get_primary_config(),
     Level.
 
+
 -spec set(0..5 | loglevel()) -> ok.
-set(N) when is_integer(N), N>=0, N=<5 ->
+set(N) when is_integer(N), N >= 0, N =< 5 ->
     set(convert_loglevel(N));
 set(Level) when ?is_loglevel(Level) ->
     case get() of
-	Level -> ok;
-	PrevLevel ->
-	    ?LOG_NOTICE("Changing loglevel from '~s' to '~s'",
-			[PrevLevel, Level]),
-	    logger:set_primary_config(level, Level),
-	    case Level of
-		debug -> xmpp:set_config([{debug, true}]);
-		_ -> xmpp:set_config([{debug, false}])
-	    end
+        Level -> ok;
+        PrevLevel ->
+            ?LOG_NOTICE("Changing loglevel from '~s' to '~s'",
+                        [PrevLevel, Level]),
+            logger:set_primary_config(level, Level),
+            case Level of
+                debug -> xmpp:set_config([{debug, true}]);
+                _ -> xmpp:set_config([{debug, false}])
+            end
     end.
 
+
 set_modules_fully_logged(Modules) ->
     logger:unset_module_level(),
     logger:set_module_level(Modules, all).
 
+
 -spec flush() -> ok.
 flush() ->
     lists:foreach(
       fun(#{id := HandlerId, module := logger_std_h}) ->
-	      logger_std_h:filesync(HandlerId);
-	 (#{id := HandlerId, module := logger_disk_log_h}) ->
-	      logger_disk_log_h:filesync(HandlerId);
-	 (_) ->
-	      ok
-      end, logger:get_handler_config()).
+              logger_std_h:filesync(HandlerId);
+         (#{id := HandlerId, module := logger_disk_log_h}) ->
+              logger_disk_log_h:filesync(HandlerId);
+         (_) ->
+              ok
+      end,
+      logger:get_handler_config()).
+
 
 -endif.

src/ejabberd_mnesia.erl

@@ -33,432 +33,507 @@
 
 -behaviour(gen_server).
 
--export([start/0, create/3, update/2, transform/2, transform/3,
-	 dump_schema/0]).
+-export([start/0,
+         create/3,
+         update/2,
+         transform/2, transform/3,
+         dump_schema/0]).
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2,
-	 terminate/2, code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 
 -define(NEED_RESET, [local_content, type]).
 
 -include("logger.hrl").
 -include("ejabberd_stacktrace.hrl").
 
--record(state, {tables = #{} :: tables(),
-		schema = [] :: [{atom(), custom_schema()}]}).
+-record(state, {
+          tables = #{} :: tables(),
+          schema = [] :: [{atom(), custom_schema()}]
+         }).
 
 -type tables() :: #{atom() => {[{atom(), term()}], term()}}.
 -type custom_schema() :: [{ram_copies | disc_copies | disc_only_copies, [node()]} |
-			  {local_content, boolean()} |
-			  {type, set | ordered_set | bag} |
-			  {attributes, [atom()]} |
-			  {index, [atom()]}].
+                          {local_content, boolean()} |
+                          {type, set | ordered_set | bag} |
+                          {attributes, [atom()]} |
+                          {index, [atom()]}].
+
 
 start() ->
     gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
 
+
 -spec create(module(), atom(), list()) -> any().
 create(Module, Name, TabDef) ->
-    gen_server:call(?MODULE, {create, Module, Name, TabDef},
-		    %% Huge timeout is need to have enough
-		    %% time to transform huge tables
-		    timer:minutes(30)).
+    gen_server:call(?MODULE,
+                    {create, Module, Name, TabDef},
+                    %% Huge timeout is need to have enough
+                    %% time to transform huge tables
+                    timer:minutes(30)).
+
 
 init([]) ->
     ejabberd_config:env_binary_to_list(mnesia, dir),
     MyNode = node(),
     DbNodes = mnesia:system_info(db_nodes),
     case lists:member(MyNode, DbNodes) of
-	true ->
-	    case mnesia:system_info(extra_db_nodes) of
-		[] -> mnesia:create_schema([node()]);
-		_ -> ok
-	    end,
-	    ejabberd:start_app(mnesia, permanent),
-	    ?DEBUG("Waiting for Mnesia tables synchronization...", []),
-	    mnesia:wait_for_tables(mnesia:system_info(local_tables), infinity),
-	    Schema = read_schema_file(),
-	    {ok, #state{schema = Schema}};
-	false ->
-	    ?CRITICAL_MSG("Erlang node name mismatch: I'm running in node [~ts], "
-			  "but the mnesia database is owned by ~p", [MyNode, DbNodes]),
-	    ?CRITICAL_MSG("Either set ERLANG_NODE in ejabberdctl.cfg "
-			  "or change node name in Mnesia by running: "
-			  "ejabberdctl mnesia_change ~ts", [hd(DbNodes)]),
-	    {stop, node_name_mismatch}
+        true ->
+            case mnesia:system_info(extra_db_nodes) of
+                [] -> mnesia:create_schema([node()]);
+                _ -> ok
+            end,
+            ejabberd:start_app(mnesia, permanent),
+            ?DEBUG("Waiting for Mnesia tables synchronization...", []),
+            mnesia:wait_for_tables(mnesia:system_info(local_tables), infinity),
+            Schema = read_schema_file(),
+            {ok, #state{schema = Schema}};
+        false ->
+            ?CRITICAL_MSG("Erlang node name mismatch: I'm running in node [~ts], "
+                          "but the mnesia database is owned by ~p",
+                          [MyNode, DbNodes]),
+            ?CRITICAL_MSG("Either set ERLANG_NODE in ejabberdctl.cfg "
+                          "or change node name in Mnesia by running: "
+                          "ejabberdctl mnesia_change ~ts",
+                          [hd(DbNodes)]),
+            {stop, node_name_mismatch}
     end.
 
+
 handle_call({create, Module, Name, TabDef}, _From, State) ->
     case maps:get(Name, State#state.tables, undefined) of
-	{TabDef, Result} ->
-	    {reply, Result, State};
-	_ ->
-	    Result = do_create(Module, Name, TabDef, State#state.schema),
-	    Tables = maps:put(Name, {TabDef, Result}, State#state.tables),
-	    {reply, Result, State#state{tables = Tables}}
+        {TabDef, Result} ->
+            {reply, Result, State};
+        _ ->
+            Result = do_create(Module, Name, TabDef, State#state.schema),
+            Tables = maps:put(Name, {TabDef, Result}, State#state.tables),
+            {reply, Result, State#state{tables = Tables}}
     end;
 handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 terminate(_Reason, _State) ->
     ok.
 
+
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 do_create(Module, Name, TabDef, TabDefs) ->
     code:ensure_loaded(Module),
     Schema = schema(Name, TabDef, TabDefs),
     {attributes, Attrs} = lists:keyfind(attributes, 1, Schema),
     case catch mnesia:table_info(Name, attributes) of
-	{'EXIT', _} ->
-	    create(Name, TabDef);
-	Attrs ->
-	    case need_reset(Name, Schema) of
-		true ->
-		    reset(Name, Schema);
-		false ->
-		    case update(Name, Attrs, Schema) of
-			{atomic, ok} ->
-			    transform(Module, Name, Attrs, Attrs);
-			Err ->
-			    Err
-		    end
-	    end;
-	OldAttrs ->
-	    transform(Module, Name, OldAttrs, Attrs)
+        {'EXIT', _} ->
+            create(Name, TabDef);
+        Attrs ->
+            case need_reset(Name, Schema) of
+                true ->
+                    reset(Name, Schema);
+                false ->
+                    case update(Name, Attrs, Schema) of
+                        {atomic, ok} ->
+                            transform(Module, Name, Attrs, Attrs);
+                        Err ->
+                            Err
+                    end
+            end;
+        OldAttrs ->
+            transform(Module, Name, OldAttrs, Attrs)
     end.
 
+
 reset(Name, TabDef) ->
     ?INFO_MSG("Deleting Mnesia table '~ts'", [Name]),
     mnesia_op(delete_table, [Name]),
     create(Name, TabDef).
 
+
 update(Name, TabDef) ->
     {attributes, Attrs} = lists:keyfind(attributes, 1, TabDef),
     update(Name, Attrs, TabDef).
 
+
 update(Name, Attrs, TabDef) ->
     case change_table_copy_type(Name, TabDef) of
-	{atomic, ok} ->
-	    CurrIndexes = [lists:nth(N-1, Attrs) ||
-			      N <- mnesia:table_info(Name, index)],
-	    NewIndexes = proplists:get_value(index, TabDef, []),
-	    case delete_indexes(Name, CurrIndexes -- NewIndexes) of
-		{atomic, ok} ->
-		    add_indexes(Name, NewIndexes -- CurrIndexes);
-		Err ->
-		    Err
-	    end;
-	Err ->
-	    Err
+        {atomic, ok} ->
+            CurrIndexes = [ lists:nth(N - 1, Attrs)
+                            || N <- mnesia:table_info(Name, index) ],
+            NewIndexes = proplists:get_value(index, TabDef, []),
+            case delete_indexes(Name, CurrIndexes -- NewIndexes) of
+                {atomic, ok} ->
+                    add_indexes(Name, NewIndexes -- CurrIndexes);
+                Err ->
+                    Err
+            end;
+        Err ->
+            Err
     end.
 
+
 change_table_copy_type(Name, TabDef) ->
     CurrType = mnesia:table_info(Name, storage_type),
     NewType = case lists:filter(fun is_storage_type_option/1, TabDef) of
-		  [{Type, _}|_] -> Type;
-		  [] -> CurrType
-	      end,
-    if NewType /= CurrType ->
-	    ?INFO_MSG("Changing Mnesia table '~ts' from ~ts to ~ts",
-		      [Name, CurrType, NewType]),
-	    if CurrType == unknown -> mnesia_op(add_table_copy, [Name, node(), NewType]);
-		true ->
-		    mnesia_op(change_table_copy_type, [Name, node(), NewType])
-	    end;
-       true ->
-	    {atomic, ok}
+                  [{Type, _} | _] -> Type;
+                  [] -> CurrType
+              end,
+    if
+        NewType /= CurrType ->
+            ?INFO_MSG("Changing Mnesia table '~ts' from ~ts to ~ts",
+                      [Name, CurrType, NewType]),
+            if
+                CurrType == unknown -> mnesia_op(add_table_copy, [Name, node(), NewType]);
+                true ->
+                    mnesia_op(change_table_copy_type, [Name, node(), NewType])
+            end;
+        true ->
+            {atomic, ok}
     end.
 
-delete_indexes(Name, [Index|Indexes]) ->
+
+delete_indexes(Name, [Index | Indexes]) ->
     ?INFO_MSG("Deleting index '~ts' from Mnesia table '~ts'", [Index, Name]),
     case mnesia_op(del_table_index, [Name, Index]) of
-	{atomic, ok} ->
-	    delete_indexes(Name, Indexes);
-	Err ->
-	    Err
+        {atomic, ok} ->
+            delete_indexes(Name, Indexes);
+        Err ->
+            Err
     end;
 delete_indexes(_Name, []) ->
     {atomic, ok}.
 
-add_indexes(Name, [Index|Indexes]) ->
+
+add_indexes(Name, [Index | Indexes]) ->
     ?INFO_MSG("Adding index '~ts' to Mnesia table '~ts'", [Index, Name]),
     case mnesia_op(add_table_index, [Name, Index]) of
-	{atomic, ok} ->
-	    add_indexes(Name, Indexes);
-	Err ->
-	    Err
+        {atomic, ok} ->
+            add_indexes(Name, Indexes);
+        Err ->
+            Err
     end;
 add_indexes(_Name, []) ->
     {atomic, ok}.
 
+
 %
 % utilities
 %
 
+
 schema(Name, Default, Schema) ->
     case lists:keyfind(Name, 1, Schema) of
-	{_, Custom} ->
-	    TabDefs = merge(Custom, Default),
-	    ?DEBUG("Using custom schema for table '~ts': ~p",
-		   [Name, TabDefs]),
-	    TabDefs;
-	false ->
-	    Default
+        {_, Custom} ->
+            TabDefs = merge(Custom, Default),
+            ?DEBUG("Using custom schema for table '~ts': ~p",
+                   [Name, TabDefs]),
+            TabDefs;
+        false ->
+            Default
     end.
 
+
 -spec read_schema_file() -> [{atom(), custom_schema()}].
 read_schema_file() ->
     File = schema_path(),
     case fast_yaml:decode_from_file(File, [plain_as_atom]) of
-	{ok, Y} ->
-	    case econf:validate(validator(), lists:flatten(Y)) of
-		{ok, []} ->
-		    ?WARNING_MSG("Mnesia schema file ~ts is empty", [File]),
-		    [];
-		{ok, Config} ->
-		    lists:map(
-		      fun({Tab, Opts}) ->
-			      {Tab, lists:map(
-				      fun({storage_type, T}) -> {T, [node()]};
-					 (Other) -> Other
-				      end, Opts)}
-		      end, Config);
-		{error, Reason, Ctx} ->
-		    ?ERROR_MSG("Failed to read Mnesia schema from ~ts: ~ts",
-			       [File, econf:format_error(Reason, Ctx)]),
-		    []
-	    end;
-	{error, enoent} ->
-	    ?DEBUG("No custom Mnesia schema file found at ~ts", [File]),
+        {ok, Y} ->
+            case econf:validate(validator(), lists:flatten(Y)) of
+                {ok, []} ->
+                    ?WARNING_MSG("Mnesia schema file ~ts is empty", [File]),
+                    [];
+                {ok, Config} ->
+                    lists:map(
+                      fun({Tab, Opts}) ->
+                              {Tab,
+                               lists:map(
+                                 fun({storage_type, T}) -> {T, [node()]};
+                                    (Other) -> Other
+                                 end,
+                                 Opts)}
+                      end,
+                      Config);
+                {error, Reason, Ctx} ->
+                    ?ERROR_MSG("Failed to read Mnesia schema from ~ts: ~ts",
+                               [File, econf:format_error(Reason, Ctx)]),
+                    []
+            end;
+        {error, enoent} ->
+            ?DEBUG("No custom Mnesia schema file found at ~ts", [File]),
             [];
-	{error, Reason} ->
-	    ?ERROR_MSG("Failed to read Mnesia schema file ~ts: ~ts",
-		       [File, fast_yaml:format_error(Reason)])
+        {error, Reason} ->
+            ?ERROR_MSG("Failed to read Mnesia schema file ~ts: ~ts",
+                       [File, fast_yaml:format_error(Reason)])
     end.
 
+
 -spec validator() -> econf:validator().
 validator() ->
     econf:map(
       econf:atom(),
       econf:options(
-	#{storage_type => econf:enum([ram_copies, disc_copies, disc_only_copies]),
-	  local_content => econf:bool(),
-	  type => econf:enum([set, ordered_set, bag]),
-	  attributes => econf:list(econf:atom()),
-	  index => econf:list(econf:atom())},
-	[{return, orddict}, unique]),
+        #{
+          storage_type => econf:enum([ram_copies, disc_copies, disc_only_copies]),
+          local_content => econf:bool(),
+          type => econf:enum([set, ordered_set, bag]),
+          attributes => econf:list(econf:atom()),
+          index => econf:list(econf:atom())
+         },
+        [{return, orddict}, unique]),
       [unique]).
 
+
 create(Name, TabDef) ->
     Type = lists:foldl(
-	     fun({ram_copies, _}, _) -> " ram ";
-		({disc_copies, _}, _) -> " disc ";
-		({disc_only_copies, _}, _) -> " disc_only ";
-		(_, Acc) -> Acc
-	     end, " ", TabDef),
+             fun({ram_copies, _}, _) -> " ram ";
+                ({disc_copies, _}, _) -> " disc ";
+                ({disc_only_copies, _}, _) -> " disc_only ";
+                (_, Acc) -> Acc
+             end,
+             " ",
+             TabDef),
     ?INFO_MSG("Creating Mnesia~tstable '~ts'", [Type, Name]),
     case mnesia_op(create_table, [Name, TabDef]) of
-	{atomic, ok} ->
-	    add_table_copy(Name);
-	Err ->
-	    Err
+        {atomic, ok} ->
+            add_table_copy(Name);
+        Err ->
+            Err
     end.
 
+
 %% The table MUST exist, otherwise the function would fail
 add_table_copy(Name) ->
     Type = mnesia:table_info(Name, storage_type),
     Nodes = mnesia:table_info(Name, Type),
     case lists:member(node(), Nodes) of
-	true ->
-	    {atomic, ok};
-	false ->
-	    mnesia_op(add_table_copy, [Name, node(), Type])
+        true ->
+            {atomic, ok};
+        false ->
+            mnesia_op(add_table_copy, [Name, node(), Type])
     end.
 
+
 merge(Custom, Default) ->
     NewDefault = case lists:any(fun is_storage_type_option/1, Custom) of
-		     true ->
-			 lists:filter(
-			   fun(O) ->
-				   not is_storage_type_option(O)
-			   end, Default);
-		     false ->
-			 Default
-		 end,
+                     true ->
+                         lists:filter(
+                           fun(O) ->
+                                   not is_storage_type_option(O)
+                           end,
+                           Default);
+                     false ->
+                         Default
+                 end,
     lists:ukeymerge(1, Custom, lists:ukeysort(1, NewDefault)).
 
+
 need_reset(Table, TabDef) ->
-    ValuesF = [mnesia:table_info(Table, Key) || Key <- ?NEED_RESET],
-    ValuesT = [proplists:get_value(Key, TabDef) || Key <- ?NEED_RESET],
+    ValuesF = [ mnesia:table_info(Table, Key) || Key <- ?NEED_RESET ],
+    ValuesT = [ proplists:get_value(Key, TabDef) || Key <- ?NEED_RESET ],
     lists:foldl(
       fun({Val, Val}, Acc) -> Acc;
-	 ({_, undefined}, Acc) -> Acc;
-	 ({_, _}, _) -> true
-      end, false, lists:zip(ValuesF, ValuesT)).
+         ({_, undefined}, Acc) -> Acc;
+         ({_, _}, _) -> true
+      end,
+      false,
+      lists:zip(ValuesF, ValuesT)).
+
 
 transform(Module, Name) ->
     try mnesia:table_info(Name, attributes) of
-	Attrs ->
-	    transform(Module, Name, Attrs, Attrs)
-    catch _:{aborted, _} = Err ->
-	    Err
+        Attrs ->
+            transform(Module, Name, Attrs, Attrs)
+    catch
+        _:{aborted, _} = Err ->
+            Err
     end.
 
+
 transform(Module, Name, NewAttrs) ->
     try mnesia:table_info(Name, attributes) of
-	OldAttrs ->
-	    transform(Module, Name, OldAttrs, NewAttrs)
-    catch _:{aborted, _} = Err ->
-	    Err
+        OldAttrs ->
+            transform(Module, Name, OldAttrs, NewAttrs)
+    catch
+        _:{aborted, _} = Err ->
+            Err
     end.
 
+
 transform(Module, Name, Attrs, Attrs) ->
     case need_transform(Module, Name) of
-	true ->
-	    ?INFO_MSG("Transforming table '~ts', this may take a while", [Name]),
-	    transform_table(Module, Name);
-	false ->
-	    {atomic, ok}
+        true ->
+            ?INFO_MSG("Transforming table '~ts', this may take a while", [Name]),
+            transform_table(Module, Name);
+        false ->
+            {atomic, ok}
     end;
 transform(Module, Name, OldAttrs, NewAttrs) ->
     Fun = case erlang:function_exported(Module, transform, 1) of
-	      true -> transform_fun(Module, Name);
-	      false -> fun(Old) -> do_transform(OldAttrs, NewAttrs, Old) end
-	  end,
+              true -> transform_fun(Module, Name);
+              false -> fun(Old) -> do_transform(OldAttrs, NewAttrs, Old) end
+          end,
     mnesia_op(transform_table, [Name, Fun, NewAttrs]).
 
+
 -spec need_transform(module(), atom()) -> boolean().
 need_transform(Module, Name) ->
     case erlang:function_exported(Module, need_transform, 1) of
-	true ->
-	    do_need_transform(Module, Name, mnesia:dirty_first(Name));
-	false ->
-	    false
+        true ->
+            do_need_transform(Module, Name, mnesia:dirty_first(Name));
+        false ->
+            false
     end.
 
+
 do_need_transform(_Module, _Name, '$end_of_table') ->
     false;
 do_need_transform(Module, Name, Key) ->
     Objs = mnesia:dirty_read(Name, Key),
     case lists:foldl(
-	   fun(_, true) -> true;
-	      (Obj, _) -> Module:need_transform(Obj)
-	   end, undefined, Objs) of
-	true -> true;
-	false -> false;
-	_ ->
-	    do_need_transform(Module, Name, mnesia:dirty_next(Name, Key))
+           fun(_, true) -> true;
+              (Obj, _) -> Module:need_transform(Obj)
+           end,
+           undefined,
+           Objs) of
+        true -> true;
+        false -> false;
+        _ ->
+            do_need_transform(Module, Name, mnesia:dirty_next(Name, Key))
     end.
 
+
 do_transform(OldAttrs, Attrs, Old) ->
-    [Name|OldValues] = tuple_to_list(Old),
+    [Name | OldValues] = tuple_to_list(Old),
     Before = lists:zip(OldAttrs, OldValues),
     After = lists:foldl(
-	      fun(Attr, Acc) ->
-		      case lists:keyfind(Attr, 1, Before) of
-			  false -> [{Attr, undefined}|Acc];
-			  Value -> [Value|Acc]
-		      end
-	      end, [], lists:reverse(Attrs)),
+              fun(Attr, Acc) ->
+                      case lists:keyfind(Attr, 1, Before) of
+                          false -> [{Attr, undefined} | Acc];
+                          Value -> [Value | Acc]
+                      end
+              end,
+              [],
+              lists:reverse(Attrs)),
     {Attrs, NewRecord} = lists:unzip(After),
-    list_to_tuple([Name|NewRecord]).
+    list_to_tuple([Name | NewRecord]).
+
 
 transform_fun(Module, Name) ->
     fun(Obj) ->
-	    try Module:transform(Obj)
-	    catch ?EX_RULE(Class, Reason, St) ->
-		    StackTrace = ?EX_STACK(St),
-		    ?ERROR_MSG("Failed to transform Mnesia table ~ts:~n"
-			       "** Record: ~p~n"
-			       "** ~ts",
-			       [Name, Obj,
-				misc:format_exception(2, Class, Reason, StackTrace)]),
-		    erlang:raise(Class, Reason, StackTrace)
-	    end
+            try
+                Module:transform(Obj)
+            catch
+                ?EX_RULE(Class, Reason, St) ->
+                    StackTrace = ?EX_STACK(St),
+                    ?ERROR_MSG("Failed to transform Mnesia table ~ts:~n"
+                               "** Record: ~p~n"
+                               "** ~ts",
+                               [Name,
+                                Obj,
+                                misc:format_exception(2, Class, Reason, StackTrace)]),
+                    erlang:raise(Class, Reason, StackTrace)
+            end
     end.
 
+
 transform_table(Module, Name) ->
     Type = mnesia:table_info(Name, type),
     Attrs = mnesia:table_info(Name, attributes),
     TmpTab = list_to_atom(atom_to_list(Name) ++ "_backup"),
-    StorageType = if Type == ordered_set -> disc_copies;
-		     true -> disc_only_copies
-		  end,
+    StorageType = if
+                      Type == ordered_set -> disc_copies;
+                      true -> disc_only_copies
+                  end,
     mnesia:create_table(TmpTab,
-			[{StorageType, [node()]},
-			 {type, Type},
-			 {local_content, true},
-			 {record_name, Name},
-			 {attributes, Attrs}]),
+                        [{StorageType, [node()]},
+                         {type, Type},
+                         {local_content, true},
+                         {record_name, Name},
+                         {attributes, Attrs}]),
     mnesia:clear_table(TmpTab),
     Fun = transform_fun(Module, Name),
     Res = mnesia_op(
-	    transaction,
-	    [fun() -> do_transform_table(Name, Fun, TmpTab, mnesia:first(Name)) end]),
+            transaction,
+            [fun() -> do_transform_table(Name, Fun, TmpTab, mnesia:first(Name)) end]),
     mnesia:delete_table(TmpTab),
     Res.
 
+
 do_transform_table(Name, _Fun, TmpTab, '$end_of_table') ->
     mnesia:foldl(
       fun(Obj, _) ->
-	      mnesia:write(Name, Obj, write)
-      end, ok, TmpTab);
+              mnesia:write(Name, Obj, write)
+      end,
+      ok,
+      TmpTab);
 do_transform_table(Name, Fun, TmpTab, Key) ->
     Next = mnesia:next(Name, Key),
     Objs = mnesia:read(Name, Key),
     lists:foreach(
       fun(Obj) ->
-	      mnesia:write(TmpTab, Fun(Obj), write),
-	      mnesia:delete_object(Obj)
-      end, Objs),
+              mnesia:write(TmpTab, Fun(Obj), write),
+              mnesia:delete_object(Obj)
+      end,
+      Objs),
     do_transform_table(Name, Fun, TmpTab, Next).
 
+
 mnesia_op(Fun, Args) ->
     case apply(mnesia, Fun, Args) of
-	{atomic, ok} ->
-	    {atomic, ok};
-	Other ->
-	    ?ERROR_MSG("Failure on mnesia ~ts ~p: ~p",
-		      [Fun, Args, Other]),
-	    Other
+        {atomic, ok} ->
+            {atomic, ok};
+        Other ->
+            ?ERROR_MSG("Failure on mnesia ~ts ~p: ~p",
+                       [Fun, Args, Other]),
+            Other
     end.
 
+
 schema_path() ->
     Dir = case os:getenv("EJABBERD_MNESIA_SCHEMA") of
-	      false -> mnesia:system_info(directory);
-	      Path -> Path
-	  end,
+              false -> mnesia:system_info(directory);
+              Path -> Path
+          end,
     filename:join(Dir, "ejabberd.schema").
 
+
 is_storage_type_option({O, _}) ->
     O == ram_copies orelse O == disc_copies orelse O == disc_only_copies.
 
+
 dump_schema() ->
     File = schema_path(),
     Schema = lists:flatmap(
-	       fun(schema) ->
-		       [];
-		  (Tab) ->
-		       [{Tab, [{storage_type,
-				mnesia:table_info(Tab, storage_type)},
-			       {local_content,
-				mnesia:table_info(Tab, local_content)}]}]
-	       end, mnesia:system_info(tables)),
+               fun(schema) ->
+                       [];
+                  (Tab) ->
+                       [{Tab,
+                         [{storage_type,
+                           mnesia:table_info(Tab, storage_type)},
+                          {local_content,
+                           mnesia:table_info(Tab, local_content)}]}]
+               end,
+               mnesia:system_info(tables)),
     case file:write_file(File, [fast_yaml:encode(Schema), io_lib:nl()]) of
-	ok ->
-	    io:format("Mnesia schema is written to ~ts~n", [File]);
-	{error, Reason} ->
-	    io:format("Failed to write Mnesia schema to ~ts: ~ts",
-		      [File, file:format_error(Reason)])
+        ok ->
+            io:format("Mnesia schema is written to ~ts~n", [File]);
+        {error, Reason} ->
+            io:format("Failed to write Mnesia schema to ~ts: ~ts",
+                      [File, file:format_error(Reason)])
     end.

src/ejabberd_oauth.erl

@@ -29,8 +29,12 @@
 -behaviour(gen_server).
 
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2,
-	 handle_info/2, terminate/2, code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 
 -export([start_link/0,
          get_client_identity/2,
@@ -40,16 +44,16 @@
          associate_access_code/3,
          associate_access_token/3,
          associate_refresh_token/3,
-         check_token/1,
-         check_token/4,
-         check_token/2,
+         check_token/1, check_token/4, check_token/2,
          scope_in_scope_list/2,
          process/2,
          config_reloaded/0,
          verify_resowner_scope/3]).
 
 -export([get_commands_spec/0,
-         oauth_issue_token/3, oauth_list_tokens/0, oauth_revoke_token/1,
+         oauth_issue_token/3,
+         oauth_list_tokens/0,
+         oauth_revoke_token/1,
          oauth_add_client_password/3,
          oauth_add_client_implicit/3,
          oauth_remove_client/1]).
@@ -57,6 +61,7 @@
 -export([web_menu_main/2, web_page_main/2]).
 
 -include_lib("xmpp/include/xmpp.hrl").
+
 -include("logger.hrl").
 -include("ejabberd_http.hrl").
 -include("ejabberd_web_admin.hrl").
@@ -64,6 +69,7 @@
 -include("ejabberd_commands.hrl").
 -include("translate.hrl").
 
+
 -callback init() -> any().
 -callback store(#oauth_token{}) -> ok | {error, any()}.
 -callback lookup(binary()) -> {ok, #oauth_token{}} | error.
@@ -71,8 +77,8 @@
 -callback clean(non_neg_integer()) -> any().
 
 -record(oauth_ctx, {
-          password    :: binary() | admin_generated,
-          client      :: #oauth_client{} | undefined
+          password :: binary() | admin_generated,
+          client :: #oauth_client{} | undefined
          }).
 
 %% There are two ways to obtain an oauth token:
@@ -80,145 +86,178 @@
 %%   * Using the command line and oauth_issue_token command, the token is generated in behalf of ejabberd' sysadmin
 %%    (as it has access to ejabberd command line).
 
-get_commands_spec() ->
-    [
-     #ejabberd_commands{name = oauth_issue_token, tags = [oauth],
-                        desc = "Issue an OAuth token for the given jid",
-                        module = ?MODULE, function = oauth_issue_token,
-                        args = [{jid, string},{ttl, integer}, {scopes, string}],
-                        policy = restricted,
-                        args_example = ["user@server.com", 3600, "connected_users_number;muc_online_rooms"],
-                        args_desc = ["Jid for which issue token",
-				     "Time to live of generated token in seconds",
-				     "List of scopes to allow, separated by ';'"],
-                        result = {result, {tuple, [{token, string}, {scopes, string}, {expires_in, string}]}}
-                       },
-     #ejabberd_commands{name = oauth_issue_token, tags = [oauth],
-                        desc = "Issue an OAuth token for the given jid",
-                        module = ?MODULE, function = oauth_issue_token,
-                        version = 1,
-                        note = "updated in 24.02",
-                        args = [{jid, string}, {ttl, integer}, {scopes, {list, {scope, binary}}}],
-                        policy = restricted,
-                        args_example = ["user@server.com", 3600, ["connected_users_number", "muc_online_rooms"]],
-                        args_desc = ["Jid for which issue token",
-				     "Time to live of generated token in seconds",
-				     "List of scopes to allow"],
-                        result = {result, {tuple, [{token, string}, {scopes, {list, {scope, string}}}, {expires_in, string}]}}
-                       },
-     #ejabberd_commands{name = oauth_list_tokens, tags = [oauth],
-                        desc = "List OAuth tokens, user, scope, and seconds to expire (only Mnesia)",
-                        longdesc = "List  _`oauth.md|OAuth`_ tokens, their user and scope, and how many seconds remain until expiry",
-                        module = ?MODULE, function = oauth_list_tokens,
-                        args = [],
-                        policy = restricted,
-                        result = {tokens, {list, {token, {tuple, [{token, string}, {user, string}, {scope, string}, {expires_in, string}]}}}}
-                       },
-     #ejabberd_commands{name = oauth_revoke_token, tags = [oauth],
-                        desc = "Revoke authorization for an OAuth token",
-			note = "changed in 22.05",
-                        module = ?MODULE, function = oauth_revoke_token,
-                        args = [{token, binary}],
-                        policy = restricted,
-                        result = {res, restuple},
-                        result_desc = "Result code"
-                       },
-     #ejabberd_commands{name = oauth_add_client_password, tags = [oauth],
-                        desc = "Add OAuth client_id with password grant type",
-                        module = ?MODULE, function = oauth_add_client_password,
-                        args = [{client_id, binary},
-                                {client_name, binary},
-                                {secret, binary}],
-                        policy = restricted,
-                        result = {res, restuple}
-                       },
-     #ejabberd_commands{name = oauth_add_client_implicit, tags = [oauth],
-                        desc = "Add OAuth client_id with implicit grant type",
-                        module = ?MODULE, function = oauth_add_client_implicit,
-                        args = [{client_id, binary},
-                                {client_name, binary},
-                                {redirect_uri, binary}],
-                        policy = restricted,
-                        result = {res, restuple}
-                       },
-     #ejabberd_commands{name = oauth_remove_client, tags = [oauth],
-                        desc = "Remove OAuth client_id",
-                        module = ?MODULE, function = oauth_remove_client,
-                        args = [{client_id, binary}],
-                        policy = restricted,
-                        result = {res, restuple}
-                       }
-    ].
 
-oauth_issue_token(Jid, TTLSeconds, [Head|_] = ScopesString) when is_integer(Head) ->
-    Scopes = [list_to_binary(Scope) || Scope <- string:tokens(ScopesString, ";")],
+get_commands_spec() ->
+    [#ejabberd_commands{
+       name = oauth_issue_token,
+       tags = [oauth],
+       desc = "Issue an OAuth token for the given jid",
+       module = ?MODULE,
+       function = oauth_issue_token,
+       args = [{jid, string}, {ttl, integer}, {scopes, string}],
+       policy = restricted,
+       args_example = ["user@server.com", 3600, "connected_users_number;muc_online_rooms"],
+       args_desc = ["Jid for which issue token",
+                    "Time to live of generated token in seconds",
+                    "List of scopes to allow, separated by ';'"],
+       result = {result, {tuple, [{token, string}, {scopes, string}, {expires_in, string}]}}
+      },
+     #ejabberd_commands{
+       name = oauth_issue_token,
+       tags = [oauth],
+       desc = "Issue an OAuth token for the given jid",
+       module = ?MODULE,
+       function = oauth_issue_token,
+       version = 1,
+       note = "updated in 24.02",
+       args = [{jid, string}, {ttl, integer}, {scopes, {list, {scope, binary}}}],
+       policy = restricted,
+       args_example = ["user@server.com", 3600, ["connected_users_number", "muc_online_rooms"]],
+       args_desc = ["Jid for which issue token",
+                    "Time to live of generated token in seconds",
+                    "List of scopes to allow"],
+       result = {result, {tuple, [{token, string}, {scopes, {list, {scope, string}}}, {expires_in, string}]}}
+      },
+     #ejabberd_commands{
+       name = oauth_list_tokens,
+       tags = [oauth],
+       desc = "List OAuth tokens, user, scope, and seconds to expire (only Mnesia)",
+       longdesc = "List  _`oauth.md|OAuth`_ tokens, their user and scope, and how many seconds remain until expiry",
+       module = ?MODULE,
+       function = oauth_list_tokens,
+       args = [],
+       policy = restricted,
+       result = {tokens, {list, {token, {tuple, [{token, string}, {user, string}, {scope, string}, {expires_in, string}]}}}}
+      },
+     #ejabberd_commands{
+       name = oauth_revoke_token,
+       tags = [oauth],
+       desc = "Revoke authorization for an OAuth token",
+       note = "changed in 22.05",
+       module = ?MODULE,
+       function = oauth_revoke_token,
+       args = [{token, binary}],
+       policy = restricted,
+       result = {res, restuple},
+       result_desc = "Result code"
+      },
+     #ejabberd_commands{
+       name = oauth_add_client_password,
+       tags = [oauth],
+       desc = "Add OAuth client_id with password grant type",
+       module = ?MODULE,
+       function = oauth_add_client_password,
+       args = [{client_id, binary},
+               {client_name, binary},
+               {secret, binary}],
+       policy = restricted,
+       result = {res, restuple}
+      },
+     #ejabberd_commands{
+       name = oauth_add_client_implicit,
+       tags = [oauth],
+       desc = "Add OAuth client_id with implicit grant type",
+       module = ?MODULE,
+       function = oauth_add_client_implicit,
+       args = [{client_id, binary},
+               {client_name, binary},
+               {redirect_uri, binary}],
+       policy = restricted,
+       result = {res, restuple}
+      },
+     #ejabberd_commands{
+       name = oauth_remove_client,
+       tags = [oauth],
+       desc = "Remove OAuth client_id",
+       module = ?MODULE,
+       function = oauth_remove_client,
+       args = [{client_id, binary}],
+       policy = restricted,
+       result = {res, restuple}
+      }].
+
+
+oauth_issue_token(Jid, TTLSeconds, [Head | _] = ScopesString) when is_integer(Head) ->
+    Scopes = [ list_to_binary(Scope) || Scope <- string:tokens(ScopesString, ";") ],
     oauth_issue_token(Jid, TTLSeconds, Scopes);
 oauth_issue_token(Jid, TTLSeconds, Scopes) ->
     try jid:decode(list_to_binary(Jid)) of
-        #jid{luser =Username, lserver = Server} ->
+        #jid{luser = Username, lserver = Server} ->
             Ctx1 = #oauth_ctx{password = admin_generated},
             case oauth2:authorize_password({Username, Server}, Scopes, Ctx1) of
-                {ok, {_Ctx,Authorization}} ->
+                {ok, {_Ctx, Authorization}} ->
                     {ok, {_AppCtx2, Response}} = oauth2:issue_token(Authorization, [{expiry_time, TTLSeconds}]),
-		    {ok, AccessToken} = oauth2_response:access_token(Response),
-		    {ok, VerifiedScope} = oauth2_response:scope(Response),
+                    {ok, AccessToken} = oauth2_response:access_token(Response),
+                    {ok, VerifiedScope} = oauth2_response:scope(Response),
                     {AccessToken, VerifiedScope, integer_to_list(TTLSeconds) ++ " seconds"};
-		{error, Error} ->
-		    {error, Error}
+                {error, Error} ->
+                    {error, Error}
             end
-    catch _:{bad_jid, _} ->
+    catch
+        _:{bad_jid, _} ->
             {error, "Invalid JID: " ++ Jid}
     end.
 
+
 oauth_list_tokens() ->
     Tokens = mnesia:dirty_match_object(#oauth_token{_ = '_'}),
     {MegaSecs, Secs, _MiniSecs} = os:timestamp(),
     TS = 1000000 * MegaSecs + Secs,
-    [{Token, jid:encode(jid:make(U,S)), Scope, integer_to_list(Expires - TS) ++ " seconds"} ||
-        #oauth_token{token=Token, scope=Scope, us= {U,S},expire=Expires} <- Tokens].
+    [ {Token, jid:encode(jid:make(U, S)), Scope, integer_to_list(Expires - TS) ++ " seconds"}
+      || #oauth_token{token = Token, scope = Scope, us = {U, S}, expire = Expires} <- Tokens ].
 
 
 oauth_revoke_token(Token) ->
     DBMod = get_db_backend(),
     case DBMod:revoke(Token) of
         ok ->
-            ets_cache:delete(oauth_cache, Token,
+            ets_cache:delete(oauth_cache,
+                             Token,
                              ejabberd_cluster:get_nodes()),
             {ok, ""};
         Other ->
             Other
     end.
 
+
 oauth_add_client_password(ClientID, ClientName, Secret) ->
     DBMod = get_db_backend(),
-    DBMod:store_client(#oauth_client{client_id = ClientID,
-                                     client_name = ClientName,
-                                     grant_type = password,
-                                     options = [{secret, Secret}]}),
+    DBMod:store_client(#oauth_client{
+                         client_id = ClientID,
+                         client_name = ClientName,
+                         grant_type = password,
+                         options = [{secret, Secret}]
+                        }),
     {ok, []}.
 
+
 oauth_add_client_implicit(ClientID, ClientName, RedirectURI) ->
     DBMod = get_db_backend(),
-    DBMod:store_client(#oauth_client{client_id = ClientID,
-                                     client_name = ClientName,
-                                     grant_type = implicit,
-                                     options = [{redirect_uri, RedirectURI}]}),
+    DBMod:store_client(#oauth_client{
+                         client_id = ClientID,
+                         client_name = ClientName,
+                         grant_type = implicit,
+                         options = [{redirect_uri, RedirectURI}]
+                        }),
     {ok, []}.
 
+
 oauth_remove_client(Client) ->
     DBMod = get_db_backend(),
     DBMod:remove_client(Client),
     {ok, []}.
 
+
 config_reloaded() ->
     DBMod = get_db_backend(),
     case init_cache(DBMod) of
-	true ->
-	    ets_cache:setopts(oauth_cache, cache_opts());
-	false ->
-	    ok
+        true ->
+            ets_cache:setopts(oauth_cache, cache_opts());
+        false ->
+            ok
     end.
 
+
 start_link() ->
     gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
 
@@ -238,38 +277,46 @@ init([]) ->
     erlang:send_after(expire(), self(), clean),
     {ok, ok}.
 
+
 handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 handle_info(clean, State) ->
     {MegaSecs, Secs, MiniSecs} = os:timestamp(),
     TS = 1000000 * MegaSecs + Secs,
     DBMod = get_db_backend(),
     DBMod:clean(TS),
     erlang:send_after(trunc(expire() * (1 + MiniSecs / 1000000)),
-                      self(), clean),
+                      self(),
+                      clean),
     {noreply, State};
 handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 terminate(_Reason, _State) ->
     ejabberd_hooks:delete(webadmin_menu_main, ?MODULE, web_menu_main, 50),
     ejabberd_hooks:delete(webadmin_page_main, ?MODULE, web_page_main, 50),
     ejabberd_hooks:delete(config_reloaded, ?MODULE, config_reloaded, 50).
 
+
 code_change(_OldVsn, State, _Extra) -> {ok, State}.
 
+
 get_client_identity(<<"">>, Ctx) ->
     {ok, {Ctx, {client, unknown_client}}};
 get_client_identity(ClientID, Ctx) when is_binary(ClientID) ->
     {ok, {Ctx, {client, ClientID}}}.
 
+
 verify_redirection_uri(_ClientID, RedirectURI, Ctx) ->
     case Ctx of
         #oauth_ctx{client = #oauth_client{grant_type = implicit} = Client} ->
@@ -285,6 +332,7 @@ verify_redirection_uri(_ClientID, RedirectURI, Ctx) ->
             {ok, Ctx}
     end.
 
+
 authenticate_user({User, Server}, Ctx) ->
     case jid:make(User, Server) of
         #jid{} = JID ->
@@ -296,7 +344,7 @@ authenticate_user({User, Server}, Ctx) ->
                         #oauth_ctx{password = admin_generated} ->
                             {ok, {Ctx, {user, User, Server}}};
                         #oauth_ctx{password = Password}
-                        when is_binary(Password) ->
+                          when is_binary(Password) ->
                             case ejabberd_auth:check_password(User, <<"">>, Server, Password) of
                                 true ->
                                     {ok, {Ctx, {user, User, Server}}};
@@ -311,6 +359,7 @@ authenticate_user({User, Server}, Ctx) ->
             {error, badpass}
     end.
 
+
 authenticate_client(ClientID, Ctx) ->
     case ejabberd_option:oauth_client_id_check() of
         allow ->
@@ -326,10 +375,11 @@ authenticate_client(ClientID, Ctx) ->
             end
     end.
 
+
 -spec verify_resowner_scope({user, binary(), binary()}, [binary()], any()) ->
-    {ok, any(), [binary()]} | {error, any()}.
+          {ok, any(), [binary()]} | {error, any()}.
 verify_resowner_scope({user, _User, _Server}, Scope, Ctx) ->
-    Cmds = [atom_to_binary(Name, utf8) || {Name, _, _} <- ejabberd_commands:list_commands()],
+    Cmds = [ atom_to_binary(Name, utf8) || {Name, _, _} <- ejabberd_commands:list_commands() ],
     AllowedScopes = [<<"ejabberd:user">>, <<"ejabberd:admin">>, <<"sasl_auth">>] ++ Cmds,
     case oauth2_priv_set:is_subset(oauth2_priv_set:new(Scope),
                                    oauth2_priv_set:new(AllowedScopes)) of
@@ -341,6 +391,7 @@ verify_resowner_scope({user, _User, _Server}, Scope, Ctx) ->
 verify_resowner_scope(_, _, _) ->
     {error, badscope}.
 
+
 %% This is callback for oauth tokens generated through the command line.  Only open and admin commands are
 %% made available.
 %verify_client_scope({client, ejabberd_ctl}, Scope, Ctx) ->
@@ -354,8 +405,6 @@ verify_resowner_scope(_, _, _) ->
 %    end.
 
 
-
-
 -spec seconds_since_epoch(integer()) -> non_neg_integer().
 seconds_since_epoch(Diff) ->
     {Mega, Secs, _} = os:timestamp(),
@@ -366,45 +415,52 @@ associate_access_code(_AccessCode, _Context, AppContext) ->
     %put(?ACCESS_CODE_TABLE, AccessCode, Context),
     {ok, AppContext}.
 
+
 associate_access_token(AccessToken, Context, AppContext) ->
     {user, User, Server} = proplists:get_value(<<"resource_owner">>, Context, <<"">>),
     Expire = case proplists:get_value(expiry_time, AppContext, undefined) of
-        undefined ->
-            proplists:get_value(<<"expiry_time">>, Context, 0);
-        ExpiresIn ->
-            %% There is no clean way in oauth2 lib to actually override the TTL of the generated token.
-            %% It always pass the global configured value.  Here we use the app context to pass the per-case
-            %% ttl if we want to override it.
-            seconds_since_epoch(ExpiresIn)
-                           end,
+                 undefined ->
+                     proplists:get_value(<<"expiry_time">>, Context, 0);
+                 ExpiresIn ->
+                     %% There is no clean way in oauth2 lib to actually override the TTL of the generated token.
+                     %% It always pass the global configured value.  Here we use the app context to pass the per-case
+                     %% ttl if we want to override it.
+                     seconds_since_epoch(ExpiresIn)
+             end,
     {user, User, Server} = proplists:get_value(<<"resource_owner">>, Context, <<"">>),
     Scope = proplists:get_value(<<"scope">>, Context, []),
     R = #oauth_token{
-      token = AccessToken,
-      us = {jid:nodeprep(User), jid:nodeprep(Server)},
-      scope = Scope,
-      expire = Expire
-     },
+          token = AccessToken,
+          us = {jid:nodeprep(User), jid:nodeprep(Server)},
+          scope = Scope,
+          expire = Expire
+         },
     store(R),
     {ok, AppContext}.
 
+
 associate_refresh_token(_RefreshToken, _Context, AppContext) ->
     %put(?REFRESH_TOKEN_TABLE, RefreshToken, Context),
     {ok, AppContext}.
 
+
 scope_in_scope_list(Scope, ScopeList) ->
     TokenScopeSet = oauth2_priv_set:new(Scope),
     lists:any(fun(Scope2) ->
-        oauth2_priv_set:is_member(Scope2, TokenScopeSet) end,
+                      oauth2_priv_set:is_member(Scope2, TokenScopeSet)
+              end,
               ScopeList).
 
+
 -spec check_token(binary()) -> {ok, {binary(), binary()}, [binary()]} |
-			       {false, expired | not_found}.
+                               {false, expired | not_found}.
 check_token(Token) ->
     case lookup(Token) of
-        {ok, #oauth_token{us = US,
-                          scope = TokenScope,
-                          expire = Expire}} ->
+        {ok, #oauth_token{
+               us = US,
+               scope = TokenScope,
+               expire = Expire
+              }} ->
             {MegaSecs, Secs, _} = os:timestamp(),
             TS = 1000000 * MegaSecs + Secs,
             if
@@ -417,20 +473,24 @@ check_token(Token) ->
             {false, not_found}
     end.
 
+
 check_token(User, Server, ScopeList, Token) ->
     LUser = jid:nodeprep(User),
     LServer = jid:nameprep(Server),
     case lookup(Token) of
-        {ok, #oauth_token{us = {LUser, LServer},
-                      scope = TokenScope,
-                          expire = Expire}} ->
+        {ok, #oauth_token{
+               us = {LUser, LServer},
+               scope = TokenScope,
+               expire = Expire
+              }} ->
             {MegaSecs, Secs, _} = os:timestamp(),
             TS = 1000000 * MegaSecs + Secs,
             if
                 Expire > TS ->
                     TokenScopeSet = oauth2_priv_set:new(TokenScope),
                     lists:any(fun(Scope) ->
-                                      oauth2_priv_set:is_member(Scope, TokenScopeSet) end,
+                                      oauth2_priv_set:is_member(Scope, TokenScopeSet)
+                              end,
                               ScopeList);
                 true ->
                     {false, expired}
@@ -439,22 +499,26 @@ check_token(User, Server, ScopeList, Token) ->
             {false, not_found}
     end.
 
+
 check_token(ScopeList, Token) ->
     case lookup(Token) of
-        {ok, #oauth_token{us = US,
-                      scope = TokenScope,
-                          expire = Expire}} ->
+        {ok, #oauth_token{
+               us = US,
+               scope = TokenScope,
+               expire = Expire
+              }} ->
             {MegaSecs, Secs, _} = os:timestamp(),
             TS = 1000000 * MegaSecs + Secs,
             if
                 Expire > TS ->
                     TokenScopeSet = oauth2_priv_set:new(TokenScope),
                     case lists:any(fun(Scope) ->
-                                           oauth2_priv_set:is_member(Scope, TokenScopeSet) end,
+                                           oauth2_priv_set:is_member(Scope, TokenScopeSet)
+                                   end,
                                    ScopeList) of
                         true -> {ok, user, US};
                         false -> {false, no_matching_scope}
-                        end;
+                    end;
                 true ->
                     {false, expired}
             end;
@@ -466,64 +530,79 @@ check_token(ScopeList, Token) ->
 store(R) ->
     DBMod = get_db_backend(),
     case DBMod:store(R) of
-	ok ->
-	    ets_cache:delete(oauth_cache, R#oauth_token.token,
-			     ejabberd_cluster:get_nodes());
-	{error, _} = Err ->
-	    Err
+        ok ->
+            ets_cache:delete(oauth_cache,
+                             R#oauth_token.token,
+                             ejabberd_cluster:get_nodes());
+        {error, _} = Err ->
+            Err
     end.
 
+
 lookup(Token) ->
-    ets_cache:lookup(oauth_cache, Token,
-		     fun() ->
-			     DBMod = get_db_backend(),
-			     DBMod:lookup(Token)
-		     end).
+    ets_cache:lookup(oauth_cache,
+                     Token,
+                     fun() ->
+                             DBMod = get_db_backend(),
+                             DBMod:lookup(Token)
+                     end).
+
 
 -spec init_cache(module()) -> boolean().
 init_cache(DBMod) ->
     UseCache = use_cache(DBMod),
     case UseCache of
-	true ->
-	    ets_cache:new(oauth_cache, cache_opts());
-	false ->
-	    ets_cache:delete(oauth_cache)
+        true ->
+            ets_cache:new(oauth_cache, cache_opts());
+        false ->
+            ets_cache:delete(oauth_cache)
     end,
     UseCache.
 
+
 use_cache(DBMod) ->
     case erlang:function_exported(DBMod, use_cache, 0) of
-	true -> DBMod:use_cache();
-	false -> ejabberd_option:oauth_use_cache()
+        true -> DBMod:use_cache();
+        false -> ejabberd_option:oauth_use_cache()
     end.
 
+
 cache_opts() ->
     MaxSize = ejabberd_option:oauth_cache_size(),
     CacheMissed = ejabberd_option:oauth_cache_missed(),
     LifeTime = ejabberd_option:oauth_cache_life_time(),
     [{max_size, MaxSize}, {life_time, LifeTime}, {cache_missed, CacheMissed}].
 
+
 expire() ->
     ejabberd_option:oauth_expire().
 
+
 -define(DIV(Class, Els),
-	?XAE(<<"div">>, [{<<"class">>, Class}], Els)).
+        ?XAE(<<"div">>, [{<<"class">>, Class}], Els)).
 -define(INPUTID(Type, Name, Value),
-	?XA(<<"input">>,
-	    [{<<"type">>, Type}, {<<"name">>, Name},
-	     {<<"value">>, Value}, {<<"id">>, Name}])).
+        ?XA(<<"input">>,
+            [{<<"type">>, Type},
+             {<<"name">>, Name},
+             {<<"value">>, Value},
+             {<<"id">>, Name}])).
 -define(LABEL(ID, Els),
-	?XAE(<<"label">>, [{<<"for">>, ID}], Els)).
+        ?XAE(<<"label">>, [{<<"for">>, ID}], Els)).
+
 
 process(_Handlers,
-	#request{method = 'GET', q = Q, lang = Lang,
-		 path = [_, <<"authorization_token">>]}) ->
+        #request{
+          method = 'GET',
+          q = Q,
+          lang = Lang,
+          path = [_, <<"authorization_token">>]
+         }) ->
     ResponseType = proplists:get_value(<<"response_type">>, Q, <<"">>),
     ClientId = proplists:get_value(<<"client_id">>, Q, <<"">>),
     JidEls = case proplists:get_value(<<"jid">>, Q, <<"">>) of
-                <<"">> -> [?INPUTID(<<"email">>, <<"username">>, <<"">>)];
-                Jid -> [?C(Jid), ?INPUT(<<"hidden">>, <<"username">>, Jid)]
-            end,
+                 <<"">> -> [?INPUTID(<<"email">>, <<"username">>, <<"">>)];
+                 Jid -> [?C(Jid), ?INPUT(<<"hidden">>, <<"username">>, Jid)]
+             end,
     RedirectURI = proplists:get_value(<<"redirect_uri">>, Q, <<"">>),
     Scope = proplists:get_value(<<"scope">>, Q, <<"">>),
     State = proplists:get_value(<<"state">>, Q, <<"">>),
@@ -531,36 +610,32 @@ process(_Handlers,
         ?XAE(<<"form">>,
              [{<<"action">>, <<"authorization_token">>},
               {<<"method">>, <<"post">>}],
-             [?LABEL(<<"username">>, [?CT(?T("User (jid)")), ?C(<<": ">>)])
-             ] ++ JidEls ++ [
-              ?BR,
-              ?LABEL(<<"password">>, [?CT(?T("Password")), ?C(<<": ">>)]),
-              ?INPUTID(<<"password">>, <<"password">>, <<"">>),
-              ?INPUT(<<"hidden">>, <<"response_type">>, ResponseType),
-              ?INPUT(<<"hidden">>, <<"client_id">>, ClientId),
-              ?INPUT(<<"hidden">>, <<"redirect_uri">>, RedirectURI),
-              ?INPUT(<<"hidden">>, <<"scope">>, Scope),
-              ?INPUT(<<"hidden">>, <<"state">>, State),
-              ?BR,
-              ?LABEL(<<"ttl">>, [?CT(?T("Token TTL")), ?C(<<": ">>)]),
-              ?XAE(<<"select">>, [{<<"name">>, <<"ttl">>}],
-                   [
-                   ?XAC(<<"option">>, [{<<"value">>, <<"3600">>}],<<"1 Hour">>),
-                   ?XAC(<<"option">>, [{<<"value">>, <<"86400">>}],<<"1 Day">>),
-                   ?XAC(<<"option">>, [{<<"value">>, <<"2592000">>}],<<"1 Month">>),
-                   ?XAC(<<"option">>, [{<<"selected">>, <<"selected">>},{<<"value">>, <<"31536000">>}],<<"1 Year">>),
-                   ?XAC(<<"option">>, [{<<"value">>, <<"315360000">>}],<<"10 Years">>)]),
-              ?BR,
-              ?INPUTT(<<"submit">>, <<"">>, ?T("Accept"))
-             ]),
+             [?LABEL(<<"username">>, [?CT(?T("User (jid)")), ?C(<<": ">>)])] ++ JidEls ++ [?BR,
+                                                                                           ?LABEL(<<"password">>, [?CT(?T("Password")), ?C(<<": ">>)]),
+                                                                                           ?INPUTID(<<"password">>, <<"password">>, <<"">>),
+                                                                                           ?INPUT(<<"hidden">>, <<"response_type">>, ResponseType),
+                                                                                           ?INPUT(<<"hidden">>, <<"client_id">>, ClientId),
+                                                                                           ?INPUT(<<"hidden">>, <<"redirect_uri">>, RedirectURI),
+                                                                                           ?INPUT(<<"hidden">>, <<"scope">>, Scope),
+                                                                                           ?INPUT(<<"hidden">>, <<"state">>, State),
+                                                                                           ?BR,
+                                                                                           ?LABEL(<<"ttl">>, [?CT(?T("Token TTL")), ?C(<<": ">>)]),
+                                                                                           ?XAE(<<"select">>,
+                                                                                                [{<<"name">>, <<"ttl">>}],
+                                                                                                [?XAC(<<"option">>, [{<<"value">>, <<"3600">>}], <<"1 Hour">>),
+                                                                                                 ?XAC(<<"option">>, [{<<"value">>, <<"86400">>}], <<"1 Day">>),
+                                                                                                 ?XAC(<<"option">>, [{<<"value">>, <<"2592000">>}], <<"1 Month">>),
+                                                                                                 ?XAC(<<"option">>, [{<<"selected">>, <<"selected">>}, {<<"value">>, <<"31536000">>}], <<"1 Year">>),
+                                                                                                 ?XAC(<<"option">>, [{<<"value">>, <<"315360000">>}], <<"10 Years">>)]),
+                                                                                           ?BR,
+                                                                                           ?INPUTT(<<"submit">>, <<"">>, ?T("Accept"))]),
     Top =
         ?DIV(<<"section">>,
              [?DIV(<<"block">>,
                    [?A(<<"https://www.ejabberd.im">>,
                        [?XA(<<"img">>,
                             [{<<"height">>, <<"32">>},
-                             {<<"src">>, logo()}])]
-                      )])]),
+                             {<<"src">>, logo()}])])])]),
     Middle =
         ?DIV(<<"white section">>,
              [?DIV(<<"block">>,
@@ -570,8 +645,7 @@ process(_Handlers,
                          ?XC(<<"em">>, ClientId),
                          ?C(<<" wants to access scope ">>),
                          ?XC(<<"em">>, Scope)]),
-                    Form
-                   ])]),
+                    Form])]),
     Bottom =
         ?DIV(<<"section">>,
              [?DIV(<<"block">>,
@@ -583,13 +657,16 @@ process(_Handlers,
                     ?XAC(<<"a">>,
                          [{<<"href">>, <<"https://www.process-one.net">>},
                           {<<"title">>, <<"ProcessOne - Leader in Instant Messaging and Push Solutions">>}],
-                         <<"ProcessOne">>)
-                   ])]),
+                         <<"ProcessOne">>)])]),
     Body = ?DIV(<<"container">>, [Top, Middle, Bottom]),
     ejabberd_web:make_xhtml(web_head(), [Body]);
 process(_Handlers,
-	#request{method = 'POST', q = Q, lang = _Lang,
-		 path = [_, <<"authorization_token">>]}) ->
+        #request{
+          method = 'POST',
+          q = Q,
+          lang = _Lang,
+          path = [_, <<"authorization_token">>]
+         }) ->
     _ResponseType = proplists:get_value(<<"response_type">>, Q, <<"">>),
     ClientId = proplists:get_value(<<"client_id">>, Q, <<"">>),
     RedirectURI = proplists:get_value(<<"redirect_uri">>, Q, <<"">>),
@@ -612,7 +689,7 @@ process(_Handlers,
                                            #oauth_ctx{password = Password}) of
                 {ok, {_AppContext, Authorization}} ->
                     {ok, {_AppContext2, Response}} =
-                        oauth2:issue_token(Authorization, [{expiry_time, ExpiresIn} || ExpiresIn /= undefined]),
+                        oauth2:issue_token(Authorization, [ {expiry_time, ExpiresIn} || ExpiresIn /= undefined ]),
                     {ok, AccessToken} = oauth2_response:access_token(Response),
                     {ok, Type} = oauth2_response:token_type(Response),
                     %%Ugly: workardound to return the correct expirity time, given than oauth2 lib doesn't really have
@@ -633,38 +710,50 @@ process(_Handlers,
                     %                                            VerifiedScope,
                     %                                            State,
                     %                                            Context);
-                    {302, [{<<"Location">>,
-                            <<RedirectURI/binary,
-                              "?access_token=", AccessToken/binary,
-                              "&token_type=", Type/binary,
-                              "&expires_in=", (integer_to_binary(Expires))/binary,
-                              "&scope=", (str:join(VerifiedScope, <<" ">>))/binary,
-                              "&state=", State/binary>>
-                           }],
+                    {302,
+                     [{<<"Location">>,
+                       <<RedirectURI/binary,
+                         "?access_token=",
+                         AccessToken/binary,
+                         "&token_type=",
+                         Type/binary,
+                         "&expires_in=",
+                         (integer_to_binary(Expires))/binary,
+                         "&scope=",
+                         (str:join(VerifiedScope, <<" ">>))/binary,
+                         "&state=",
+                         State/binary>>}],
                      ejabberd_web:make_xhtml([?XC(<<"h1">>, <<"302 Found">>)])};
                 {error, Error} when is_atom(Error) ->
                     %oauth2_wrq:redirected_error_response(
                     %    ReqData, RedirectURI, Error, State, Context)
-                    {302, [{<<"Location">>,
-                            <<RedirectURI/binary,
-                              "?error=", (atom_to_binary(Error, utf8))/binary,
-                              "&state=", State/binary>>
-                           }],
+                    {302,
+                     [{<<"Location">>,
+                       <<RedirectURI/binary,
+                         "?error=",
+                         (atom_to_binary(Error, utf8))/binary,
+                         "&state=",
+                         State/binary>>}],
                      ejabberd_web:make_xhtml([?XC(<<"h1">>, <<"302 Found">>)])}
             end
-    catch _:{bad_jid, _} ->
-        State = proplists:get_value(<<"state">>, Q, <<"">>),
-        {400, [{<<"Location">>,
-                <<RedirectURI/binary,
-                  "?error=invalid_request",
-                  "&state=", State/binary>>
-               }],
-         ejabberd_web:make_xhtml([?XC(<<"h1">>, <<"400 Invalid request">>)])}
+    catch
+        _:{bad_jid, _} ->
+            State = proplists:get_value(<<"state">>, Q, <<"">>),
+            {400,
+             [{<<"Location">>,
+               <<RedirectURI/binary,
+                 "?error=invalid_request",
+                 "&state=", State/binary>>}],
+             ejabberd_web:make_xhtml([?XC(<<"h1">>, <<"400 Invalid request">>)])}
     end;
 process(_Handlers,
-	#request{method = 'POST', q = Q, lang = _Lang,
-                 auth = HTTPAuth,
-		 path = [_, <<"token">>]}) ->
+        #request{
+          method = 'POST',
+          q = Q,
+          lang = _Lang,
+          auth = HTTPAuth,
+          path = [_, <<"token">>]
+         }) ->
     Access =
         case ejabberd_option:oauth_client_id_check() of
             allow ->
@@ -694,8 +783,7 @@ process(_Handlers,
                         case get_client_secret(Client) of
                             Secret ->
                                 case proplists:get_value(<<"grant_type">>, Q, <<"">>) of
-                                    <<"password">> when
-                                    Client#oauth_client.grant_type == password ->
+                                    <<"password">> when Client#oauth_client.grant_type == password ->
                                         password;
                                     _ ->
                                         unsupported_grant_type
@@ -725,7 +813,7 @@ process(_Handlers,
                                                    #oauth_ctx{password = Password}) of
                         {ok, {_AppContext, Authorization}} ->
                             {ok, {_AppContext2, Response}} =
-                                oauth2:issue_token(Authorization, [{expiry_time, ExpiresIn} || ExpiresIn /= undefined]),
+                                oauth2:issue_token(Authorization, [ {expiry_time, ExpiresIn} || ExpiresIn /= undefined ]),
                             {ok, AccessToken} = oauth2_response:access_token(Response),
                             {ok, Type} = oauth2_response:token_type(Response),
                             %%Ugly: workardound to return the correct expirity time, given than oauth2 lib doesn't really have
@@ -738,18 +826,23 @@ process(_Handlers,
                                               ExpiresIn
                                       end,
                             {ok, VerifiedScope} = oauth2_response:scope(Response),
-                            json_response(200, #{<<"access_token">> => AccessToken,
-                                                 <<"token_type">> => Type,
-                                                 <<"scope">> => str:join(VerifiedScope, <<" ">>),
-                                                 <<"expires_in">> => Expires});
+                            json_response(200,
+                                          #{
+                                            <<"access_token">> => AccessToken,
+                                            <<"token_type">> => Type,
+                                            <<"scope">> => str:join(VerifiedScope, <<" ">>),
+                                            <<"expires_in">> => Expires
+                                           });
                         {error, Error} when is_atom(Error) ->
                             json_error(400, <<"invalid_grant">>, Error)
                     end
-            catch _:{bad_jid, _} ->
-                json_error(400, <<"invalid_request">>, invalid_jid)
+            catch
+                _:{bad_jid, _} ->
+                    json_error(400, <<"invalid_request">>, invalid_jid)
             end;
         unsupported_grant_type ->
-            json_error(400, <<"unsupported_grant_type">>,
+            json_error(400,
+                       <<"unsupported_grant_type">>,
                        unsupported_grant_type);
         deny ->
             ejabberd_web:error(not_allowed)
@@ -758,73 +851,89 @@ process(_Handlers,
 process(_Handlers, _Request) ->
     ejabberd_web:error(not_found).
 
+
 -spec get_db_backend() -> module().
 
 get_db_backend() ->
     DBType = ejabberd_option:oauth_db_type(),
     list_to_existing_atom("ejabberd_oauth_" ++ atom_to_list(DBType)).
 
+
 get_client_secret(#oauth_client{grant_type = password, options = Options}) ->
     proplists:get_value(secret, Options, false).
 
+
 get_redirect_uri(#oauth_client{grant_type = implicit, options = Options}) ->
     proplists:get_value(redirect_uri, Options, false).
 
+
 %% Headers as per RFC 6749
 json_response(Code, Body) ->
-    {Code, [{<<"Content-Type">>, <<"application/json;charset=UTF-8">>},
-           {<<"Cache-Control">>, <<"no-store">>},
-           {<<"Pragma">>, <<"no-cache">>}],
+    {Code,
+     [{<<"Content-Type">>, <<"application/json;charset=UTF-8">>},
+      {<<"Cache-Control">>, <<"no-store">>},
+      {<<"Pragma">>, <<"no-cache">>}],
      misc:json_encode(Body)}.
 
+
 %% OAauth error are defined in:
 %% https://tools.ietf.org/html/draft-ietf-oauth-v2-25#section-5.2
 json_error(Code, Error, Reason) ->
     Desc = json_error_desc(Reason),
-    Body = #{<<"error">> => Error,
-             <<"error_description">> => Desc},
+    Body = #{
+             <<"error">> => Error,
+             <<"error_description">> => Desc
+            },
     json_response(Code, Body).
 
-json_error_desc(access_denied)          -> <<"Access denied">>;
-json_error_desc(badpass)                -> <<"Bad password">>;
+
+json_error_desc(access_denied) -> <<"Access denied">>;
+json_error_desc(badpass) -> <<"Bad password">>;
 json_error_desc(unsupported_grant_type) -> <<"Unsupported grant type">>;
-json_error_desc(invalid_scope)          -> <<"Invalid scope">>;
-json_error_desc(invalid_jid)            -> <<"Invalid JID">>.
+json_error_desc(invalid_scope) -> <<"Invalid scope">>;
+json_error_desc(invalid_jid) -> <<"Invalid JID">>.
+
 
 web_head() ->
-    [?XA(<<"meta">>, [{<<"http-equiv">>, <<"X-UA-Compatible">>},
-                      {<<"content">>, <<"IE=edge">>}]),
-     ?XA(<<"meta">>, [{<<"name">>, <<"viewport">>},
-                      {<<"content">>,
-                       <<"width=device-width, initial-scale=1">>}]),
+    [?XA(<<"meta">>,
+         [{<<"http-equiv">>, <<"X-UA-Compatible">>},
+          {<<"content">>, <<"IE=edge">>}]),
+     ?XA(<<"meta">>,
+         [{<<"name">>, <<"viewport">>},
+          {<<"content">>,
+           <<"width=device-width, initial-scale=1">>}]),
      ?XC(<<"title">>, <<"Authorization request">>),
-     ?XC(<<"style">>, css())
-    ].
+     ?XC(<<"style">>, css())].
+
 
 css() ->
     case misc:read_css("oauth.css") of
-	{ok, Data} -> Data;
-	{error, _} -> <<>>
+        {ok, Data} -> Data;
+        {error, _} -> <<>>
     end.
 
+
 logo() ->
     case misc:read_img("oauth-logo.png") of
-	{ok, Img} ->
-	    B64Img = base64:encode(Img),
-	    <<"data:image/png;base64,", B64Img/binary>>;
-	{error, _} ->
-	    <<>>
+        {ok, Img} ->
+            B64Img = base64:encode(Img),
+            <<"data:image/png;base64,", B64Img/binary>>;
+        {error, _} ->
+            <<>>
     end.
 
+
 %%%
 %%% WebAdmin
 %%%
 
 %% @format-begin
 
+
 web_menu_main(Acc, _Lang) ->
     Acc ++ [{<<"oauth">>, <<"OAuth">>}].
 
+
 web_page_main(_, #request{path = [<<"oauth">>]} = R) ->
     Head = ?H1GLraw(<<"OAuth">>, <<"developer/ejabberd-api/oauth/">>, <<"OAuth">>),
     Set = [?X(<<"hr">>),

src/ejabberd_oauth_mnesia.erl

@@ -28,38 +28,45 @@
 -behaviour(ejabberd_oauth).
 
 -export([init/0,
-	 store/1,
-	 lookup/1,
-	 clean/1,
-	 lookup_client/1,
-	 store_client/1,
-	 remove_client/1,
-	 use_cache/0, revoke/1]).
+         store/1,
+         lookup/1,
+         clean/1,
+         lookup_client/1,
+         store_client/1,
+         remove_client/1,
+         use_cache/0,
+         revoke/1]).
 
 -include("ejabberd_oauth.hrl").
 
+
 init() ->
-    ejabberd_mnesia:create(?MODULE, oauth_token,
-                        [{disc_only_copies, [node()]},
-                         {attributes,
-                          record_info(fields, oauth_token)}]),
-    ejabberd_mnesia:create(?MODULE, oauth_client,
-                        [{disc_copies, [node()]},
-                         {attributes,
-                          record_info(fields, oauth_client)}]),
+    ejabberd_mnesia:create(?MODULE,
+                           oauth_token,
+                           [{disc_only_copies, [node()]},
+                            {attributes,
+                             record_info(fields, oauth_token)}]),
+    ejabberd_mnesia:create(?MODULE,
+                           oauth_client,
+                           [{disc_copies, [node()]},
+                            {attributes,
+                             record_info(fields, oauth_client)}]),
     ok.
 
+
 use_cache() ->
     case mnesia:table_info(oauth_token, storage_type) of
-	disc_only_copies ->
-	    ejabberd_option:oauth_use_cache();
-	_ ->
-	    false
+        disc_only_copies ->
+            ejabberd_option:oauth_use_cache();
+        _ ->
+            false
     end.
 
+
 store(R) ->
     mnesia:dirty_write(R).
 
+
 lookup(Token) ->
     case catch mnesia:dirty_read(oauth_token, Token) of
         [R] ->
@@ -73,17 +80,19 @@ lookup(Token) ->
 revoke(Token) ->
     mnesia:dirty_delete(oauth_token, Token).
 
+
 clean(TS) ->
     F = fun() ->
-		Ts = mnesia:select(
-		       oauth_token,
-		       [{#oauth_token{expire = '$1', _ = '_'},
-			 [{'<', '$1', TS}],
-			 ['$_']}]),
-		lists:foreach(fun mnesia:delete_object/1, Ts)
+                Ts = mnesia:select(
+                       oauth_token,
+                       [{#oauth_token{expire = '$1', _ = '_'},
+                         [{'<', '$1', TS}],
+                         ['$_']}]),
+                lists:foreach(fun mnesia:delete_object/1, Ts)
         end,
     mnesia:async_dirty(F).
 
+
 lookup_client(ClientID) ->
     case catch mnesia:dirty_read(oauth_client, ClientID) of
         [R] ->
@@ -92,8 +101,10 @@ lookup_client(ClientID) ->
             error
     end.
 
+
 remove_client(ClientID) ->
     mnesia:dirty_delete(oauth_client, ClientID).
 
+
 store_client(R) ->
     mnesia:dirty_write(R).

src/ejabberd_oauth_rest.erl

@@ -32,16 +32,20 @@
          lookup/1,
          clean/1,
          lookup_client/1,
-         store_client/1, revoke/1]).
+         store_client/1,
+         revoke/1]).
 
 -include("ejabberd_oauth.hrl").
 -include("logger.hrl").
+
 -include_lib("xmpp/include/jid.hrl").
 
+
 init() ->
     rest:start(ejabberd_config:get_myname()),
     ok.
 
+
 store(R) ->
     Path = path(<<"store">>),
     %% Retry 2 times, with a backoff of 500millisec
@@ -49,12 +53,17 @@ store(R) ->
     SJID = jid:encode({User, Server, <<"">>}),
     case rest:with_retry(
            post,
-           [ejabberd_config:get_myname(), Path, [],
-            #{<<"token">> => R#oauth_token.token,
+           [ejabberd_config:get_myname(),
+            Path,
+            [],
+            #{
+              <<"token">> => R#oauth_token.token,
               <<"user">> => SJID,
               <<"scope">> => R#oauth_token.scope,
               <<"expire">> => R#oauth_token.expire
-             }], 2, 500) of
+             }],
+           2,
+           500) of
         {ok, Code, _} when Code == 200 orelse Code == 201 ->
             ok;
         Err ->
@@ -62,11 +71,16 @@ store(R) ->
             {error, db_failure}
     end.
 
+
 lookup(Token) ->
     Path = path(<<"lookup">>),
-    case rest:with_retry(post, [ejabberd_config:get_myname(), Path, [],
-                                #{<<"token">> => Token}],
-                         2, 500) of
+    case rest:with_retry(post,
+                         [ejabberd_config:get_myname(),
+                          Path,
+                          [],
+                          #{<<"token">> => Token}],
+                         2,
+                         500) of
         {ok, 200, Data} ->
             SJID = case maps:find(<<"user">>, Data) of
                        {ok, U} -> U;
@@ -82,10 +96,12 @@ lookup(Token) ->
                          {ok, E} -> E;
                          error -> 0
                      end,
-            {ok, #oauth_token{token = Token,
-			      us = US,
-			      scope = Scope,
-			      expire = Expire}};
+            {ok, #oauth_token{
+                   token = Token,
+                   us = US,
+                   scope = Scope,
+                   expire = Expire
+                  }};
         {ok, 404, _Resp} ->
             error;
         Other ->
@@ -93,24 +109,30 @@ lookup(Token) ->
             case ejabberd_option:oauth_cache_rest_failure_life_time() of
                 infinity -> error;
                 Time -> {cache_with_timeout, error, Time}
-	    end
+            end
     end.
 
+
 -spec revoke(binary()) -> ok | {error, binary()}.
 revoke(_Token) ->
     {error, <<"not available">>}.
 
+
 clean(_TS) ->
     ok.
 
+
 path(Path) ->
     Base = ejabberd_option:ext_api_path_oauth(),
     <<Base/binary, "/", Path/binary>>.
 
-store_client(#oauth_client{client_id = ClientID,
-                           client_name = ClientName,
-                           grant_type = GrantType,
-                           options = Options} = R) ->
+
+store_client(#oauth_client{
+               client_id = ClientID,
+               client_name = ClientName,
+               grant_type = GrantType,
+               options = Options
+              } = R) ->
     Path = path(<<"store_client">>),
     SGrantType =
         case GrantType of
@@ -121,12 +143,17 @@ store_client(#oauth_client{client_id = ClientID,
     %% Retry 2 times, with a backoff of 500millisec
     case rest:with_retry(
            post,
-           [ejabberd_config:get_myname(), Path, [],
-            #{<<"client_id">> => ClientID,
+           [ejabberd_config:get_myname(),
+            Path,
+            [],
+            #{
+              <<"client_id">> => ClientID,
               <<"client_name">> => ClientName,
               <<"grant_type">> => SGrantType,
               <<"options">> => SOptions
-             }], 2, 500) of
+             }],
+           2,
+           500) of
         {ok, Code, _} when Code == 200 orelse Code == 201 ->
             ok;
         Err ->
@@ -134,11 +161,16 @@ store_client(#oauth_client{client_id = ClientID,
             {error, db_failure}
     end.
 
+
 lookup_client(ClientID) ->
     Path = path(<<"lookup_client">>),
-    case rest:with_retry(post, [ejabberd_config:get_myname(), Path, [],
-                                #{<<"client_id">> => ClientID}],
-                         2, 500) of
+    case rest:with_retry(post,
+                         [ejabberd_config:get_myname(),
+                          Path,
+                          [],
+                          #{<<"client_id">> => ClientID}],
+                         2,
+                         500) of
         {ok, 200, Data} ->
             ClientName = case maps:find(<<"client_name">>, Data) of
                              {ok, CN} -> CN;
@@ -159,10 +191,12 @@ lookup_client(ClientID) ->
                        end,
             case misc:base64_to_term(SOptions) of
                 {term, Options} ->
-                    {ok, #oauth_client{client_id = ClientID,
-                                       client_name = ClientName,
-                                       grant_type = GrantType,
-                                       options = Options}};
+                    {ok, #oauth_client{
+                           client_id = ClientID,
+                           client_name = ClientName,
+                           grant_type = GrantType,
+                           options = Options
+                          }};
                 _ ->
                     error
             end;
@@ -170,5 +204,5 @@ lookup_client(ClientID) ->
             error;
         Other ->
             ?ERROR_MSG("Unexpected response for oauth lookup: ~p", [Other]),
-	    error
+            error
     end.

src/ejabberd_oauth_sql.erl

@@ -28,48 +28,59 @@
 -behaviour(ejabberd_oauth).
 
 -export([init/0,
-	 store/1,
-	 lookup/1,
-	 clean/1,
-	 lookup_client/1,
-	 store_client/1,
-	 remove_client/1, revoke/1]).
+         store/1,
+         lookup/1,
+         clean/1,
+         lookup_client/1,
+         store_client/1,
+         remove_client/1,
+         revoke/1]).
 -export([sql_schemas/0]).
 
 -include("ejabberd_oauth.hrl").
 -include("ejabberd_sql_pt.hrl").
+
 -include_lib("xmpp/include/jid.hrl").
+
 -include("logger.hrl").
 
+
 init() ->
     ejabberd_sql_schema:update_schema(
       ejabberd_config:get_myname(), ?MODULE, sql_schemas()),
     ok.
 
+
 sql_schemas() ->
     [#sql_schema{
-        version = 1,
-        tables =
-            [#sql_table{
-                name = <<"oauth_token">>,
-                columns =
-                    [#sql_column{name = <<"token">>, type = text},
-                     #sql_column{name = <<"jid">>, type = text},
-                     #sql_column{name = <<"scope">>, type = text},
-                     #sql_column{name = <<"expire">>, type = bigint}],
-                indices = [#sql_index{
-                              columns = [<<"token">>],
-                              unique = true}]},
-             #sql_table{
-                name = <<"oauth_client">>,
-                columns =
-                    [#sql_column{name = <<"client_id">>, type = text},
-                     #sql_column{name = <<"client_name">>, type = text},
-                     #sql_column{name = <<"grant_type">>, type = text},
-                     #sql_column{name = <<"options">>, type = text}],
-                indices = [#sql_index{
-                              columns = [<<"client_id">>],
-                              unique = true}]}]}].
+       version = 1,
+       tables =
+           [#sql_table{
+              name = <<"oauth_token">>,
+              columns =
+                  [#sql_column{name = <<"token">>, type = text},
+                   #sql_column{name = <<"jid">>, type = text},
+                   #sql_column{name = <<"scope">>, type = text},
+                   #sql_column{name = <<"expire">>, type = bigint}],
+              indices = [#sql_index{
+                           columns = [<<"token">>],
+                           unique = true
+                          }]
+             },
+            #sql_table{
+              name = <<"oauth_client">>,
+              columns =
+                  [#sql_column{name = <<"client_id">>, type = text},
+                   #sql_column{name = <<"client_name">>, type = text},
+                   #sql_column{name = <<"grant_type">>, type = text},
+                   #sql_column{name = <<"options">>, type = text}],
+              indices = [#sql_index{
+                           columns = [<<"client_id">>],
+                           unique = true
+                          }]
+             }]
+      }].
+
 
 store(R) ->
     Token = R#oauth_token.token,
@@ -78,18 +89,19 @@ store(R) ->
     Scope = str:join(R#oauth_token.scope, <<" ">>),
     Expire = R#oauth_token.expire,
     case ?SQL_UPSERT(
-	    ejabberd_config:get_myname(),
-	    "oauth_token",
-	    ["!token=%(Token)s",
-	     "jid=%(SJID)s",
-	     "scope=%(Scope)s",
-	     "expire=%(Expire)d"]) of
-	ok ->
-	    ok;
-	_ ->
-	    {error, db_failure}
+           ejabberd_config:get_myname(),
+           "oauth_token",
+           ["!token=%(Token)s",
+            "jid=%(SJID)s",
+            "scope=%(Scope)s",
+            "expire=%(Expire)d"]) of
+        ok ->
+            ok;
+        _ ->
+            {error, db_failure}
     end.
 
+
 lookup(Token) ->
     case ejabberd_sql:sql_query(
            ejabberd_config:get_myname(),
@@ -98,29 +110,34 @@ lookup(Token) ->
         {selected, [{SJID, Scope, Expire}]} ->
             JID = jid:decode(SJID),
             US = {JID#jid.luser, JID#jid.lserver},
-            {ok, #oauth_token{token = Token,
-			      us = US,
-			      scope = str:tokens(Scope, <<" ">>),
-			      expire = Expire}};
+            {ok, #oauth_token{
+                   token = Token,
+                   us = US,
+                   scope = str:tokens(Scope, <<" ">>),
+                   expire = Expire
+                  }};
         _ ->
             error
     end.
 
+
 revoke(Token) ->
     case ejabberd_sql:sql_query(
-	ejabberd_config:get_myname(),
-	?SQL("delete from oauth_token where token=%(Token)s")) of
-	{error, _} ->
-	    {error, <<"db error">>};
-	_ ->
-	    ok
+           ejabberd_config:get_myname(),
+           ?SQL("delete from oauth_token where token=%(Token)s")) of
+        {error, _} ->
+            {error, <<"db error">>};
+        _ ->
+            ok
     end.
 
+
 clean(TS) ->
     ejabberd_sql:sql_query(
       ejabberd_config:get_myname(),
       ?SQL("delete from oauth_token where expire < %(TS)d")).
 
+
 lookup_client(ClientID) ->
     case ejabberd_sql:sql_query(
            ejabberd_config:get_myname(),
@@ -134,10 +151,12 @@ lookup_client(ClientID) ->
                 end,
             case misc:base64_to_term(SOptions) of
                 {term, Options} ->
-                    {ok, #oauth_client{client_id = ClientID,
-                                       client_name = ClientName,
-                                       grant_type = GrantType,
-                                       options = Options}};
+                    {ok, #oauth_client{
+                           client_id = ClientID,
+                           client_name = ClientName,
+                           grant_type = GrantType,
+                           options = Options
+                          }};
                 _ ->
                     error
             end;
@@ -145,10 +164,13 @@ lookup_client(ClientID) ->
             error
     end.
 
-store_client(#oauth_client{client_id = ClientID,
-                           client_name = ClientName,
-                           grant_type = GrantType,
-                           options = Options}) ->
+
+store_client(#oauth_client{
+               client_id = ClientID,
+               client_name = ClientName,
+               grant_type = GrantType,
+               options = Options
+              }) ->
     SGrantType =
         case GrantType of
             password -> <<"password">>;
@@ -156,18 +178,19 @@ store_client(#oauth_client{client_id = ClientID,
         end,
     SOptions = misc:term_to_base64(Options),
     case ?SQL_UPSERT(
-	    ejabberd_config:get_myname(),
-	    "oauth_client",
-	    ["!client_id=%(ClientID)s",
-	     "client_name=%(ClientName)s",
-	     "grant_type=%(SGrantType)s",
-	     "options=%(SOptions)s"]) of
-	ok ->
-	    ok;
-	_ ->
-	    {error, db_failure}
+           ejabberd_config:get_myname(),
+           "oauth_client",
+           ["!client_id=%(ClientID)s",
+            "client_name=%(ClientName)s",
+            "grant_type=%(SGrantType)s",
+            "options=%(SOptions)s"]) of
+        ok ->
+            ok;
+        _ ->
+            {error, db_failure}
     end.
 
+
 remove_client(Client) ->
     ejabberd_sql:sql_query(
       ejabberd_config:get_myname(),

src/ejabberd_old_config.erl

@@ -25,22 +25,24 @@
 
 -include("logger.hrl").
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
 read_file(File) ->
     case consult(File) of
-	{ok, Terms1} ->
-	    ?INFO_MSG("Converting from old configuration format", []),
-	    Terms2 = strings_to_binary(Terms1),
-	    Terms3 = transform(Terms2),
-	    Terms4 = transform_certfiles(Terms3),
-	    Terms5 = transform_host_config(Terms4),
-	    {ok, collect_options(Terms5)};
-	{error, Reason} ->
-	    {error, {old_config, File, Reason}}
+        {ok, Terms1} ->
+            ?INFO_MSG("Converting from old configuration format", []),
+            Terms2 = strings_to_binary(Terms1),
+            Terms3 = transform(Terms2),
+            Terms4 = transform_certfiles(Terms3),
+            Terms5 = transform_host_config(Terms4),
+            {ok, collect_options(Terms5)};
+        {error, Reason} ->
+            {error, {old_config, File, Reason}}
     end.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
@@ -52,10 +54,13 @@ collect_options(Opts) ->
              ({K, V}, {D, Os}) ->
                   {orddict:store(K, V, D), Os};
              (Opt, {D, Os}) ->
-                  {D, [Opt|Os]}
-          end, {orddict:new(), []}, Opts),
+                  {D, [Opt | Os]}
+          end,
+          {orddict:new(), []},
+          Opts),
     InvalidOpts ++ orddict:to_list(D).
 
+
 transform(Opts) ->
     Opts1 = transform_register(Opts),
     Opts2 = transform_s2s(Opts1),
@@ -68,6 +73,7 @@ transform(Opts) ->
     Opts10 = transform_globals(Opts9),
     collect_options(Opts10).
 
+
 %%%===================================================================
 %%% mod_register
 %%%===================================================================
@@ -80,7 +86,8 @@ transform_register(Opts) ->
         ?WARNING_MSG("Old 'ip_access' format detected. "
                      "The old format is still supported "
                      "but it is better to fix your config: "
-                     "use access rules instead.", []),
+                     "use access rules instead.",
+                     []),
         ACLs = lists:flatmap(
                  fun({Action, S}) ->
                          ACLName = misc:binary_to_atom(
@@ -88,43 +95,46 @@ transform_register(Opts) ->
                                        ["ip_", S])),
                          [{Action, ACLName},
                           {acl, ACLName, {ip, S}}]
-                 end, L),
+                 end,
+                 L),
         Access = {access, mod_register_networks,
-                  [{Action, ACLName} || {Action, ACLName} <- ACLs]},
-        [ACL || {acl, _, _} = ACL <- ACLs] ++
-            [Access,
-             {modules,
-              [{mod_register,
-                [{ip_access, mod_register_networks}|RegOpts1]}
-               | ModOpts1]}|Opts1]
-    catch error:{badmatch, false} ->
+                          [ {Action, ACLName} || {Action, ACLName} <- ACLs ]},
+        [ ACL || {acl, _, _} = ACL <- ACLs ] ++
+        [Access,
+         {modules,
+          [{mod_register,
+            [{ip_access, mod_register_networks} | RegOpts1]} | ModOpts1]} | Opts1]
+    catch
+        error:{badmatch, false} ->
             Opts
     end.
 
+
 %%%===================================================================
 %%% ejabberd_s2s
 %%%===================================================================
 transform_s2s(Opts) ->
     lists:foldl(fun transform_s2s/2, [], Opts).
 
+
 transform_s2s({{s2s_host, Host}, Action}, Opts) ->
     ?WARNING_MSG("Option 's2s_host' is deprecated.", []),
     ACLName = misc:binary_to_atom(
                 iolist_to_binary(["s2s_access_", Host])),
     [{acl, ACLName, {server, Host}},
      {access, s2s, [{Action, ACLName}]},
-     {s2s_access, s2s} |
-     Opts];
+     {s2s_access, s2s} | Opts];
 transform_s2s({s2s_default_policy, Action}, Opts) ->
     ?WARNING_MSG("Option 's2s_default_policy' is deprecated. "
                  "The option is still supported but it is better to "
                  "fix your config: "
-                 "use 's2s_access' with an access rule.", []),
+                 "use 's2s_access' with an access rule.",
+                 []),
     [{access, s2s, [{Action, all}]},
-     {s2s_access, s2s} |
-     Opts];
+     {s2s_access, s2s} | Opts];
 transform_s2s(Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 %%%===================================================================
 %%% ejabberd_s2s_out
@@ -132,31 +142,36 @@ transform_s2s(Opt, Opts) ->
 transform_s2s_out(Opts) ->
     lists:foldl(fun transform_s2s_out/2, [], Opts).
 
+
 transform_s2s_out({outgoing_s2s_options, Families, Timeout}, Opts) ->
     ?WARNING_MSG("Option 'outgoing_s2s_options' is deprecated. "
                  "The option is still supported "
                  "but it is better to fix your config: "
                  "use 'outgoing_s2s_timeout' and "
-                 "'outgoing_s2s_families' instead.", []),
+                 "'outgoing_s2s_families' instead.",
+                 []),
     [{outgoing_s2s_families, Families},
-     {outgoing_s2s_timeout, Timeout}
-     | Opts];
+     {outgoing_s2s_timeout, Timeout} | Opts];
 transform_s2s_out({s2s_dns_options, S2SDNSOpts}, AllOpts) ->
     ?WARNING_MSG("Option 's2s_dns_options' is deprecated. "
                  "The option is still supported "
                  "but it is better to fix your config: "
                  "use 's2s_dns_timeout' and "
-                 "'s2s_dns_retries' instead", []),
+                 "'s2s_dns_retries' instead",
+                 []),
     lists:foldr(
       fun({timeout, T}, AccOpts) ->
-              [{s2s_dns_timeout, T}|AccOpts];
+              [{s2s_dns_timeout, T} | AccOpts];
          ({retries, R}, AccOpts) ->
-              [{s2s_dns_retries, R}|AccOpts];
+              [{s2s_dns_retries, R} | AccOpts];
          (_, AccOpts) ->
               AccOpts
-      end, AllOpts, S2SDNSOpts);
+      end,
+      AllOpts,
+      S2SDNSOpts);
 transform_s2s_out(Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 %%%===================================================================
 %%% ejabberd_listener
@@ -164,33 +179,41 @@ transform_s2s_out(Opt, Opts) ->
 transform_listeners(Opts) ->
     lists:foldl(fun transform_listeners/2, [], Opts).
 
+
 transform_listeners({listen, LOpts}, Opts) ->
     [{listen, lists:map(fun transform_listener/1, LOpts)} | Opts];
 transform_listeners(Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 transform_listener({{Port, IP, Transport}, Mod, Opts}) ->
-    IPStr = if is_tuple(IP) ->
+    IPStr = if
+                is_tuple(IP) ->
                     list_to_binary(inet_parse:ntoa(IP));
-               true ->
+                true ->
                     IP
             end,
     Opts1 = lists:map(
               fun({ip, IPT}) when is_tuple(IPT) ->
                       {ip, list_to_binary(inet_parse:ntoa(IP))};
                  (ssl) -> {tls, true};
-		 (A) when is_atom(A) -> {A, true};
+                 (A) when is_atom(A) -> {A, true};
                  (Opt) -> Opt
-              end, Opts),
+              end,
+              Opts),
     Opts2 = lists:foldl(
               fun(Opt, Acc) ->
-		      transform_listen_option(Mod, Opt, Acc)
-              end, [], Opts1),
-    TransportOpt = if Transport == tcp -> [];
-                      true -> [{transport, Transport}]
+                      transform_listen_option(Mod, Opt, Acc)
+              end,
+              [],
+              Opts1),
+    TransportOpt = if
+                       Transport == tcp -> [];
+                       true -> [{transport, Transport}]
                    end,
-    IPOpt = if IPStr == <<"0.0.0.0">> -> [];
-               true -> [{ip, IPStr}]
+    IPOpt = if
+                IPStr == <<"0.0.0.0">> -> [];
+                true -> [{ip, IPStr}]
             end,
     IPOpt ++ TransportOpt ++ [{port, Port}, {module, Mod} | Opts2];
 transform_listener({{Port, Transport}, Mod, Opts})
@@ -203,24 +226,26 @@ transform_listener({Port, Mod, Opts}) ->
 transform_listener(Opt) ->
     Opt.
 
+
 transform_listen_option(ejabberd_http, captcha, Opts) ->
-    [{captcha, true}|Opts];
+    [{captcha, true} | Opts];
 transform_listen_option(ejabberd_http, register, Opts) ->
-    [{register, true}|Opts];
+    [{register, true} | Opts];
 transform_listen_option(ejabberd_http, web_admin, Opts) ->
-    [{web_admin, true}|Opts];
+    [{web_admin, true} | Opts];
 transform_listen_option(ejabberd_http, http_bind, Opts) ->
-    [{http_bind, true}|Opts];
+    [{http_bind, true} | Opts];
 transform_listen_option(ejabberd_http, http_poll, Opts) ->
-    [{http_poll, true}|Opts];
+    [{http_poll, true} | Opts];
 transform_listen_option(ejabberd_http, {request_handlers, Hs}, Opts) ->
     Hs1 = lists:map(
             fun({PList, Mod}) when is_list(PList) ->
-                    Path = iolist_to_binary([[$/, P] || P <- PList]),
+                    Path = iolist_to_binary([ [$/, P] || P <- PList ]),
                     {Path, Mod};
                (Opt) ->
                     Opt
-            end, Hs),
+            end,
+            Hs),
     [{request_handlers, Hs1} | Opts];
 transform_listen_option(ejabberd_service, {hosts, Hosts, O}, Opts) ->
     case lists:keyfind(hosts, 1, Opts) of
@@ -229,11 +254,12 @@ transform_listen_option(ejabberd_service, {hosts, Hosts, O}, Opts) ->
                 lists:foldl(
                   fun(H, Acc) ->
                           dict:append_list(H, O, Acc)
-                  end, dict:from_list(PrevHostOpts), Hosts),
-            [{hosts, dict:to_list(NewHostOpts)}|
-             lists:keydelete(hosts, 1, Opts)];
+                  end,
+                  dict:from_list(PrevHostOpts),
+                  Hosts),
+            [{hosts, dict:to_list(NewHostOpts)} | lists:keydelete(hosts, 1, Opts)];
         _ ->
-            [{hosts, [{H, O} || H <- Hosts]}|Opts]
+            [{hosts, [ {H, O} || H <- Hosts ]} | Opts]
     end;
 transform_listen_option(ejabberd_service, {host, Host, Os}, Opts) ->
     transform_listen_option(ejabberd_service, {hosts, [Host], Os}, Opts);
@@ -243,41 +269,47 @@ transform_listen_option(ejabberd_xmlrpc, {access_commands, ACOpts}, Opts) ->
                           {AName, [{commands, ACmds}, {options, AOpts}]};
                      (Opt) ->
                           Opt
-                  end, ACOpts),
-    [{access_commands, NewACOpts}|Opts];
+                  end,
+                  ACOpts),
+    [{access_commands, NewACOpts} | Opts];
 transform_listen_option(_, Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 -spec all_zero_ip([proplists:property()]) -> inet:ip_address().
 all_zero_ip(Opts) ->
     case proplists:get_bool(inet6, Opts) of
-	true -> {0,0,0,0,0,0,0,0};
-	false -> {0,0,0,0}
+        true -> {0, 0, 0, 0, 0, 0, 0, 0};
+        false -> {0, 0, 0, 0}
     end.
 
+
 %%%===================================================================
 %%% ejabberd_shaper
 %%%===================================================================
 transform_shaper(Opts) ->
     lists:foldl(fun transform_shaper/2, [], Opts).
 
+
 transform_shaper({shaper, Name, {maxrate, N}}, Opts) ->
     [{shaper, [{Name, N}]} | Opts];
 transform_shaper({shaper, Name, none}, Opts) ->
     [{shaper, [{Name, none}]} | Opts];
 transform_shaper({shaper, List}, Opts) when is_list(List) ->
     R = lists:map(
-	  fun({Name, Args}) when is_list(Args) ->
-		  MaxRate = proplists:get_value(rate, Args, 1000),
-		  BurstSize = proplists:get_value(burst_size, Args, MaxRate),
-		  {Name, MaxRate, BurstSize};
-	     ({Name, Val}) ->
-		  {Name, Val, Val}
-	  end, List),
+          fun({Name, Args}) when is_list(Args) ->
+                  MaxRate = proplists:get_value(rate, Args, 1000),
+                  BurstSize = proplists:get_value(burst_size, Args, MaxRate),
+                  {Name, MaxRate, BurstSize};
+             ({Name, Val}) ->
+                  {Name, Val, Val}
+          end,
+          List),
     [{shaper, R} | Opts];
 transform_shaper(Opt, Opts) ->
     [Opt | Opts].
 
+
 %%%===================================================================
 %%% acl
 %%%===================================================================
@@ -287,26 +319,34 @@ transform_acl(Opts) ->
                          fun({acl, Os}, Acc) ->
                                  {Os, Acc};
                             (O, Acc) ->
-                                 {[], [O|Acc]}
-                         end, [], Opts1),
+                                 {[], [O | Acc]}
+                         end,
+                         [],
+                         Opts1),
     {AccessOpts, Opts3} = lists:mapfoldl(
                             fun({access, Os}, Acc) ->
                                     {Os, Acc};
                                (O, Acc) ->
-                                    {[], [O|Acc]}
-                            end, [], Opts2),
+                                    {[], [O | Acc]}
+                            end,
+                            [],
+                            Opts2),
     {NewAccessOpts, Opts4} = lists:mapfoldl(
-                            fun({access_rules, Os}, Acc) ->
-                                    {Os, Acc};
-                               (O, Acc) ->
-                                    {[], [O|Acc]}
-                            end, [], Opts3),
+                               fun({access_rules, Os}, Acc) ->
+                                       {Os, Acc};
+                                  (O, Acc) ->
+                                       {[], [O | Acc]}
+                               end,
+                               [],
+                               Opts3),
     {ShaperOpts, Opts5} = lists:mapfoldl(
                             fun({shaper_rules, Os}, Acc) ->
                                     {Os, Acc};
                                (O, Acc) ->
-                                    {[], [O|Acc]}
-                            end, [], Opts4),
+                                    {[], [O | Acc]}
+                            end,
+                            [],
+                            Opts4),
     ACLOpts1 = collect_options(lists:flatten(ACLOpts)),
     AccessOpts1 = case collect_options(lists:flatten(AccessOpts)) of
                       [] -> [];
@@ -315,26 +355,30 @@ transform_acl(Opts) ->
     ACLOpts2 = case lists:map(
                       fun({ACLName, Os}) ->
                               {ACLName, collect_options(Os)}
-                      end, ACLOpts1) of
+                      end,
+                      ACLOpts1) of
                    [] -> [];
                    L2 -> [{acl, L2}]
                end,
     NewAccessOpts1 = case lists:map(
-			    fun({NAName, Os}) ->
-				    {NAName, transform_access_rules_config(Os)}
-			    end, lists:flatten(NewAccessOpts)) of
-			 [] -> [];
-			 L3 -> [{access_rules, L3}]
-		     end,
+                            fun({NAName, Os}) ->
+                                    {NAName, transform_access_rules_config(Os)}
+                            end,
+                            lists:flatten(NewAccessOpts)) of
+                         [] -> [];
+                         L3 -> [{access_rules, L3}]
+                     end,
     ShaperOpts1 = case lists:map(
-			    fun({SName, Ss}) ->
-				    {SName, transform_access_rules_config(Ss)}
-			    end, lists:flatten(ShaperOpts)) of
-			 [] -> [];
-			 L4 -> [{shaper_rules, L4}]
-		     end,
+                         fun({SName, Ss}) ->
+                                 {SName, transform_access_rules_config(Ss)}
+                         end,
+                         lists:flatten(ShaperOpts)) of
+                      [] -> [];
+                      L4 -> [{shaper_rules, L4}]
+                  end,
     ACLOpts2 ++ AccessOpts1 ++ NewAccessOpts1 ++ ShaperOpts1 ++ Opts5.
 
+
 transform_acl({acl, Name, Type}, Opts) ->
     T = case Type of
             all -> all;
@@ -357,59 +401,66 @@ transform_acl({acl, Name, Type}, Opts) ->
             {resource_glob, R} -> {resource_glob, [b(R)]};
             {resource_regexp, R} -> {resource_regexp, [b(R)]}
         end,
-    [{acl, [{Name, [T]}]}|Opts];
+    [{acl, [{Name, [T]}]} | Opts];
 transform_acl({access, Name, Rules}, Opts) ->
-    NewRules = [{ACL, Action} || {Action, ACL} <- Rules],
-    [{access, [{Name, NewRules}]}|Opts];
+    NewRules = [ {ACL, Action} || {Action, ACL} <- Rules ],
+    [{access, [{Name, NewRules}]} | Opts];
 transform_acl(Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 transform_access_rules_config(Config) when is_list(Config) ->
     lists:map(fun transform_access_rules_config2/1, lists:flatten(Config));
 transform_access_rules_config(Config) ->
     transform_access_rules_config([Config]).
 
+
 transform_access_rules_config2(Type) when is_integer(Type); is_atom(Type) ->
     {Type, [all]};
 transform_access_rules_config2({Type, ACL}) when is_atom(ACL) ->
     {Type, [{acl, ACL}]};
 transform_access_rules_config2({Res, Rules}) when is_list(Rules) ->
     T = lists:map(fun({Type, Args}) when is_list(Args) ->
-			  {Type, hd(lists:flatten(Args))};
-		     (V) ->
-			  V
-		  end, lists:flatten(Rules)),
+                          {Type, hd(lists:flatten(Args))};
+                     (V) ->
+                          V
+                  end,
+                  lists:flatten(Rules)),
     {Res, T};
 transform_access_rules_config2({Res, Rule}) ->
     {Res, [Rule]}.
 
+
 %%%===================================================================
 %%% SQL
 %%%===================================================================
 -define(PGSQL_PORT, 5432).
 -define(MYSQL_PORT, 3306).
 
+
 transform_sql(Opts) ->
     lists:foldl(fun transform_sql/2, [], Opts).
 
+
 transform_sql({odbc_server, {Type, Server, Port, DB, User, Pass}}, Opts) ->
     [{sql_type, Type},
      {sql_server, Server},
      {sql_port, Port},
      {sql_database, DB},
      {sql_username, User},
-     {sql_password, Pass}|Opts];
+     {sql_password, Pass} | Opts];
 transform_sql({odbc_server, {mysql, Server, DB, User, Pass}}, Opts) ->
     transform_sql({odbc_server, {mysql, Server, ?MYSQL_PORT, DB, User, Pass}}, Opts);
 transform_sql({odbc_server, {pgsql, Server, DB, User, Pass}}, Opts) ->
     transform_sql({odbc_server, {pgsql, Server, ?PGSQL_PORT, DB, User, Pass}}, Opts);
 transform_sql({odbc_server, {sqlite, DB}}, Opts) ->
     [{sql_type, sqlite},
-     {sql_database, DB}|Opts];
+     {sql_database, DB} | Opts];
 transform_sql({odbc_pool_size, N}, Opts) ->
-    [{sql_pool_size, N}|Opts];
+    [{sql_pool_size, N} | Opts];
 transform_sql(Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 %%%===================================================================
 %%% modules
@@ -417,15 +468,18 @@ transform_sql(Opt, Opts) ->
 transform_modules(Opts) ->
     lists:foldl(fun transform_modules/2, [], Opts).
 
+
 transform_modules({modules, ModOpts}, Opts) ->
     [{modules, lists:map(
-		 fun({Mod, Opts1}) ->
-			 {Mod, transform_module(Mod, Opts1)};
-		    (Other) ->
-			 Other
-		 end, ModOpts)}|Opts];
+                 fun({Mod, Opts1}) ->
+                         {Mod, transform_module(Mod, Opts1)};
+                    (Other) ->
+                         Other
+                 end,
+                 ModOpts)} | Opts];
 transform_modules(Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 transform_module(mod_disco, Opts) ->
     lists:map(
@@ -437,18 +491,21 @@ transform_module(mod_disco, Opts) ->
                                      {urls, URLs}]];
                               (Opt) ->
                                    Opt
-                           end, Infos),
+                           end,
+                           Infos),
               {server_info, NewInfos};
          (Opt) ->
               Opt
-      end, Opts);
+      end,
+      Opts);
 transform_module(mod_muc_log, Opts) ->
     lists:map(
       fun({top_link, {S1, S2}}) ->
               {top_link, [{S1, S2}]};
          (Opt) ->
               Opt
-      end, Opts);
+      end,
+      Opts);
 transform_module(mod_proxy65, Opts) ->
     lists:map(
       fun({ip, IP}) when is_tuple(IP) ->
@@ -457,17 +514,20 @@ transform_module(mod_proxy65, Opts) ->
               {hostname, misc:ip_to_list(IP)};
          (Opt) ->
               Opt
-      end, Opts);
+      end,
+      Opts);
 transform_module(mod_register, Opts) ->
     lists:flatmap(
       fun({welcome_message, {Subj, Body}}) ->
               [{welcome_message, [{subject, Subj}, {body, Body}]}];
          (Opt) ->
               [Opt]
-      end, Opts);
+      end,
+      Opts);
 transform_module(_Mod, Opts) ->
     Opts.
 
+
 %%%===================================================================
 %%% Host config
 %%%===================================================================
@@ -477,42 +537,50 @@ transform_host_config(Opts) ->
                        fun({host_config, O}, Os) ->
                                {[O], Os};
                           (O, Os) ->
-                               {[], [O|Os]}
-                       end, [], Opts1),
+                               {[], [O | Os]}
+                       end,
+                       [],
+                       Opts1),
     {AHOpts, Opts3} = lists:mapfoldl(
                         fun({append_host_config, O}, Os) ->
                                 {[O], Os};
                            (O, Os) ->
-                                {[], [O|Os]}
-                        end, [], Opts2),
+                                {[], [O | Os]}
+                        end,
+                        [],
+                        Opts2),
     HOpts1 = case collect_options(lists:flatten(HOpts)) of
                  [] ->
                      [];
                  HOs ->
                      [{host_config,
-                       [{H, transform(O)} || {H, O} <- HOs]}]
+                       [ {H, transform(O)} || {H, O} <- HOs ]}]
              end,
     AHOpts1 = case collect_options(lists:flatten(AHOpts)) of
                   [] ->
                       [];
                   AHOs ->
                       [{append_host_config,
-                        [{H, transform(O)} || {H, O} <- AHOs]}]
+                        [ {H, transform(O)} || {H, O} <- AHOs ]}]
               end,
     HOpts1 ++ AHOpts1 ++ Opts3.
 
+
 transform_host_config({host_config, Host, HOpts}, Opts) ->
     {AddOpts, HOpts1} =
         lists:mapfoldl(
           fun({{add, Opt}, Val}, Os) ->
                   {[{Opt, Val}], Os};
              (O, Os) ->
-                  {[], [O|Os]}
-          end, [], HOpts),
+                  {[], [O | Os]}
+          end,
+          [],
+          HOpts),
     [{append_host_config, [{Host, lists:flatten(AddOpts)}]},
-     {host_config, [{Host, HOpts1}]}|Opts];
+     {host_config, [{Host, HOpts1}]} | Opts];
 transform_host_config(Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 %%%===================================================================
 %%% Top-level options
@@ -520,20 +588,22 @@ transform_host_config(Opt, Opts) ->
 transform_globals(Opts) ->
     lists:foldl(fun transform_globals/2, [], Opts).
 
+
 transform_globals(Opt, Opts) when Opt == override_global;
-				  Opt == override_local;
-				  Opt == override_acls ->
+                                  Opt == override_local;
+                                  Opt == override_acls ->
     ?WARNING_MSG("Option '~ts' has no effect anymore", [Opt]),
     Opts;
 transform_globals({node_start, _}, Opts) ->
     ?WARNING_MSG("Option 'node_start' has no effect anymore", []),
     Opts;
 transform_globals({iqdisc, {queues, N}}, Opts) ->
-    [{iqdisc, N}|Opts];
+    [{iqdisc, N} | Opts];
 transform_globals({define_macro, Macro, Val}, Opts) ->
-    [{define_macro, [{Macro, Val}]}|Opts];
+    [{define_macro, [{Macro, Val}]} | Opts];
 transform_globals(Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 %%%===================================================================
 %%% Certfiles
@@ -541,70 +611,79 @@ transform_globals(Opt, Opts) ->
 transform_certfiles(Opts) ->
     lists:foldl(fun transform_certfiles/2, [], Opts).
 
+
 transform_certfiles({domain_certfile, Domain, CertFile}, Opts) ->
-    [{host_config, [{Domain, [{domain_certfile, CertFile}]}]}|Opts];
+    [{host_config, [{Domain, [{domain_certfile, CertFile}]}]} | Opts];
 transform_certfiles(Opt, Opts) ->
-    [Opt|Opts].
+    [Opt | Opts].
+
 
 %%%===================================================================
 %%% Consult file
 %%%===================================================================
 consult(File) ->
     case file:consult(File) of
-	{ok, Terms} ->
-	    include_config_files(Terms);
-	Err ->
-	    Err
+        {ok, Terms} ->
+            include_config_files(Terms);
+        Err ->
+            Err
     end.
 
+
 include_config_files(Terms) ->
     include_config_files(Terms, []).
 
+
 include_config_files([], Res) ->
     {ok, Res};
 include_config_files([{include_config_file, Filename} | Terms], Res) ->
     include_config_files([{include_config_file, Filename, []} | Terms], Res);
 include_config_files([{include_config_file, Filename, Options} | Terms], Res) ->
     case consult(Filename) of
-	{ok, Included_terms} ->
-	    Disallow = proplists:get_value(disallow, Options, []),
-	    Included_terms2 = delete_disallowed(Disallow, Included_terms),
-	    Allow_only = proplists:get_value(allow_only, Options, all),
-	    Included_terms3 = keep_only_allowed(Allow_only, Included_terms2),
-	    include_config_files(Terms, Res ++ Included_terms3);
-	Err ->
-	    Err
+        {ok, Included_terms} ->
+            Disallow = proplists:get_value(disallow, Options, []),
+            Included_terms2 = delete_disallowed(Disallow, Included_terms),
+            Allow_only = proplists:get_value(allow_only, Options, all),
+            Included_terms3 = keep_only_allowed(Allow_only, Included_terms2),
+            include_config_files(Terms, Res ++ Included_terms3);
+        Err ->
+            Err
     end;
 include_config_files([Term | Terms], Res) ->
     include_config_files(Terms, Res ++ [Term]).
 
+
 delete_disallowed(Disallowed, Terms) ->
     lists:foldl(
       fun(Dis, Ldis) ->
-	      delete_disallowed2(Dis, Ldis)
+              delete_disallowed2(Dis, Ldis)
       end,
       Terms,
       Disallowed).
 
-delete_disallowed2(Disallowed, [H|T]) ->
+
+delete_disallowed2(Disallowed, [H | T]) ->
     case element(1, H) of
-	Disallowed ->
-	    delete_disallowed2(Disallowed, T);
-	_ ->
-	    [H|delete_disallowed2(Disallowed, T)]
+        Disallowed ->
+            delete_disallowed2(Disallowed, T);
+        _ ->
+            [H | delete_disallowed2(Disallowed, T)]
     end;
 delete_disallowed2(_, []) ->
     [].
 
+
 keep_only_allowed(all, Terms) ->
     Terms;
 keep_only_allowed(Allowed, Terms) ->
     {As, _NAs} = lists:partition(
-		   fun(Term) ->
-			   lists:member(element(1, Term), Allowed)
-		   end, Terms),
+                   fun(Term) ->
+                           lists:member(element(1, Term), Allowed)
+                   end,
+                   Terms),
     As.
 
+
 %%%===================================================================
 %%% Aux functions
 %%%===================================================================
@@ -617,27 +696,30 @@ strings_to_binary(L) when is_list(L) ->
         false ->
             strings_to_binary1(L)
     end;
-strings_to_binary({A, B, C, D}) when
-	is_integer(A), is_integer(B), is_integer(C), is_integer(D) ->
+strings_to_binary({A, B, C, D})
+  when is_integer(A), is_integer(B), is_integer(C), is_integer(D) ->
     {A, B, C, D};
 strings_to_binary(T) when is_tuple(T) ->
     list_to_tuple(strings_to_binary1(tuple_to_list(T)));
 strings_to_binary(X) ->
     X.
 
-strings_to_binary1([El|L]) ->
-    [strings_to_binary(El)|strings_to_binary1(L)];
+
+strings_to_binary1([El | L]) ->
+    [strings_to_binary(El) | strings_to_binary1(L)];
 strings_to_binary1([]) ->
     [];
 strings_to_binary1(T) ->
     T.
 
-is_string([C|T]) when (C >= 0) and (C =< 255) ->
+
+is_string([C | T]) when (C >= 0) and (C =< 255) ->
     is_string(T);
 is_string([]) ->
     true;
 is_string(_) ->
     false.
 
+
 b(S) ->
     iolist_to_binary(S).

src/ejabberd_options.erl

@@ -29,6 +29,7 @@
 
 -include_lib("kernel/include/inet.hrl").
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
@@ -39,10 +40,12 @@ opt_type(acl) ->
     acl:validator(acl);
 opt_type(acme) ->
     econf:options(
-      #{ca_url => econf:url(),
-	contact => econf:list_or_single(econf:binary("^[a-zA-Z]+:[^:]+$")),
-	auto => econf:bool(),
-	cert_type => econf:enum([ec, rsa])},
+      #{
+        ca_url => econf:url(),
+        contact => econf:list_or_single(econf:binary("^[a-zA-Z]+:[^:]+$")),
+        auto => econf:bool(),
+        cert_type => econf:enum([ec, rsa])
+       },
       [unique, {return, map}]);
 opt_type(allow_contrib_modules) ->
     econf:bool();
@@ -75,7 +78,8 @@ opt_type(auth_opts) ->
                       {basic_auth, V};
                  ({path_prefix, V}) when is_binary(V) ->
                       {path_prefix, V}
-              end, L)
+              end,
+              L)
     end;
 opt_type(auth_stored_password_types) ->
     econf:list(econf:enum([plain, scram_sha1, scram_sha256, scram_sha512]));
@@ -144,16 +148,18 @@ opt_type(disable_sasl_scram_downgrade_protection) ->
 opt_type(disable_sasl_mechanisms) ->
     econf:list_or_single(
       econf:and_then(
-	econf:binary(),
-	fun str:to_upper/1));
+        econf:binary(),
+        fun str:to_upper/1));
 opt_type(domain_balancing) ->
     econf:map(
       econf:domain(),
       econf:options(
-	#{component_number => econf:int(2, 1000),
-	  type => econf:enum([random, source, destination,
-			      bare_source, bare_destination])},
-	[{return, map}, unique]),
+        #{
+          component_number => econf:int(2, 1000),
+          type => econf:enum([random, source, destination,
+                              bare_source, bare_destination])
+         },
+        [{return, map}, unique]),
       [{return, map}]);
 opt_type(ext_api_path_oauth) ->
     econf:binary();
@@ -179,7 +185,7 @@ opt_type(host_config) ->
         econf:map(econf:domain(), econf:list(econf:any())),
         fun econf:group_dups/1),
       econf:map(
-	econf:enum(ejabberd_config:get_option(hosts)),
+        econf:enum(ejabberd_config:get_option(hosts)),
         validator(),
         [unique]));
 opt_type(hosts) ->
@@ -206,9 +212,9 @@ opt_type(ldap_deref_aliases) ->
 opt_type(ldap_dn_filter) ->
     econf:and_then(
       econf:non_empty(
-	econf:map(
-	  econf:ldap_filter(),
-	  econf:list(econf:binary()))),
+        econf:map(
+          econf:ldap_filter(),
+          econf:list(econf:binary()))),
       fun hd/1);
 opt_type(ldap_encrypt) ->
     econf:enum([tls, starttls, none]);
@@ -233,9 +239,9 @@ opt_type(ldap_tls_verify) ->
 opt_type(ldap_uids) ->
     econf:either(
       econf:list(
-	econf:and_then(
-	  econf:binary(),
-	  fun(U) -> {U, <<"%u">>} end)),
+        econf:and_then(
+          econf:binary(),
+          fun(U) -> {U, <<"%u">>} end)),
       econf:map(econf:binary(), econf:binary(), [unique]));
 opt_type(listen) ->
     ejabberd_listener:validator();
@@ -251,12 +257,12 @@ opt_type(log_modules_fully) ->
     econf:list(econf:atom());
 opt_type(loglevel) ->
     fun(N) when is_integer(N) ->
-	    (econf:and_then(
-	       econf:int(0, 5),
-	       fun ejabberd_logger:convert_loglevel/1))(N);
+            (econf:and_then(
+               econf:int(0, 5),
+               fun ejabberd_logger:convert_loglevel/1))(N);
        (Level) ->
-	    (econf:enum([none, emergency, alert, critical,
-			 error, warning, notice, info, debug]))(Level)
+            (econf:enum([none, emergency, alert, critical,
+                         error, warning, notice, info, debug]))(Level)
     end;
 opt_type(max_fsm_queue) ->
     econf:pos_int();
@@ -299,12 +305,13 @@ opt_type(oom_watermark) ->
 opt_type(outgoing_s2s_families) ->
     econf:and_then(
       econf:non_empty(
-	econf:list(econf:enum([ipv4, ipv6]), [unique])),
+        econf:list(econf:enum([ipv4, ipv6]), [unique])),
       fun(L) ->
-	      lists:map(
-		fun(ipv4) -> inet;
-		   (ipv6) -> inet6
-		end, L)
+              lists:map(
+                fun(ipv4) -> inet;
+                   (ipv6) -> inet6
+                end,
+                L)
       end);
 opt_type(outgoing_s2s_ipv4_address) ->
     econf:ipv4();
@@ -392,9 +399,9 @@ opt_type(s2s_zlib) ->
     econf:and_then(
       econf:bool(),
       fun(false) -> false;
-	 (true) ->
-	      ejabberd:start_app(ezlib),
-	      true
+         (true) ->
+              ejabberd:start_app(ezlib),
+              true
       end);
 opt_type(shaper) ->
     ejabberd_shaper:validator(shaper);
@@ -459,10 +466,10 @@ opt_type(version) ->
 opt_type(websocket_origin) ->
     econf:list(
       econf:and_then(
-	econf:and_then(
-	  econf:binary_sep("\\s+"),
-	  econf:list(econf:url(), [unique])),
-	fun(L) -> str:join(L, <<" ">>) end),
+        econf:and_then(
+          econf:binary_sep("\\s+"),
+          econf:list(econf:url(), [unique])),
+        fun(L) -> str:join(L, <<" ">>) end),
       [unique]);
 opt_type(websocket_ping_interval) ->
     econf:timeout(second);
@@ -474,22 +481,23 @@ opt_type(jwt_key) ->
       fun(Path) ->
               case file:read_file(Path) of
                   {ok, Data} ->
-		      try jose_jwk:from_binary(Data) of
-			  {error, _} -> econf:fail({bad_jwt_key, Path});
-			  JWK ->
+                      try jose_jwk:from_binary(Data) of
+                          {error, _} -> econf:fail({bad_jwt_key, Path});
+                          JWK ->
                               case jose_jwk:to_map(JWK) of
                                   {_, #{<<"keys">> := [Key]}} ->
                                       jose_jwk:from_map(Key);
-                                  {_, #{<<"keys">> := [_|_]}} ->
+                                  {_, #{<<"keys">> := [_ | _]}} ->
                                       econf:fail({bad_jwt_key_set, Path});
-				  {_, #{<<"keys">> := _}} ->
-				      econf:fail({bad_jwt_key, Path});
+                                  {_, #{<<"keys">> := _}} ->
+                                      econf:fail({bad_jwt_key, Path});
                                   _ ->
                                       JWK
                               end
-		      catch _:_ ->
-			      econf:fail({bad_jwt_key, Path})
-		      end;
+                      catch
+                          _:_ ->
+                              econf:fail({bad_jwt_key, Path})
+                      end;
                   {error, Reason} ->
                       econf:fail({read_file, Reason, Path})
               end
@@ -499,36 +507,37 @@ opt_type(jwt_jid_field) ->
 opt_type(jwt_auth_only_rule) ->
     econf:atom().
 
+
 %% We only define the types of options that cannot be derived
 %% automatically by tools/opt_type.sh script
 -spec options() -> [{s2s_protocol_options, undefined | binary()} |
-		    {c2s_protocol_options, undefined | binary()} |
+                    {c2s_protocol_options, undefined | binary()} |
                     {s2s_ciphers, undefined | binary()} |
                     {c2s_ciphers, undefined | binary()} |
-		    {websocket_origin, [binary()]} |
-		    {disable_sasl_mechanisms, [binary()]} |
-		    {s2s_zlib, boolean()} |
-		    {loglevel, ejabberd_logger:loglevel()} |
-		    {auth_opts, [{any(), any()}]} |
-		    {listen, [ejabberd_listener:listener()]} |
-		    {modules, [{module(), gen_mod:opts(), integer()}]} |
-		    {ldap_uids, [{binary(), binary()}]} |
-		    {ldap_dn_filter, {binary(), [binary()]}} |
-		    {outgoing_s2s_families, [inet | inet6, ...]} |
-		    {acl, [{atom(), [acl:acl_rule()]}]} |
-		    {access_rules, [{atom(), acl:access()}]} |
-		    {shaper, #{atom() => ejabberd_shaper:shaper_rate()}} |
-		    {shaper_rules, [{atom(), [ejabberd_shaper:shaper_rule()]}]} |
-		    {api_permissions, [ejabberd_access_permissions:permission()]} |
-		    {jwt_key, jose_jwk:key() | undefined} |
-		    {append_host_config, [{binary(), any()}]} |
-		    {host_config, [{binary(), any()}]} |
-		    {define_keyword, any()} |
-		    {define_macro, any()} |
-		    {include_config_file, any()} |
-		    {atom(), any()}].
+                    {websocket_origin, [binary()]} |
+                    {disable_sasl_mechanisms, [binary()]} |
+                    {s2s_zlib, boolean()} |
+                    {loglevel, ejabberd_logger:loglevel()} |
+                    {auth_opts, [{any(), any()}]} |
+                    {listen, [ejabberd_listener:listener()]} |
+                    {modules, [{module(), gen_mod:opts(), integer()}]} |
+                    {ldap_uids, [{binary(), binary()}]} |
+                    {ldap_dn_filter, {binary(), [binary()]}} |
+                    {outgoing_s2s_families, [inet | inet6, ...]} |
+                    {acl, [{atom(), [acl:acl_rule()]}]} |
+                    {access_rules, [{atom(), acl:access()}]} |
+                    {shaper, #{atom() => ejabberd_shaper:shaper_rate()}} |
+                    {shaper_rules, [{atom(), [ejabberd_shaper:shaper_rule()]}]} |
+                    {api_permissions, [ejabberd_access_permissions:permission()]} |
+                    {jwt_key, jose_jwk:key() | undefined} |
+                    {append_host_config, [{binary(), any()}]} |
+                    {host_config, [{binary(), any()}]} |
+                    {define_keyword, any()} |
+                    {define_macro, any()} |
+                    {include_config_file, any()} |
+                    {atom(), any()}].
 options() ->
-    [%% Top-priority options
+    [  %% Top-priority options
      hosts,
      {loglevel, info},
      {cache_life_time, timer:seconds(3600)},
@@ -549,10 +558,10 @@ options() ->
      {anonymous_protocol, sasl_anon},
      {api_permissions,
       [{<<"admin access">>,
-	{[],
-	 [{acl, admin},
-	  {oauth, {[<<"ejabberd:admin">>], [{acl, admin}]}}],
-	 {all, [start, stop]}}}]},
+        {[],
+         [{acl, admin},
+          {oauth, {[<<"ejabberd:admin">>], [{acl, admin}]}}],
+         {all, [start, stop]}}}]},
      {append_host_config, []},
      {auth_cache_life_time,
       fun(Host) -> ejabberd_config:get_option({cache_life_time, Host}) end},
@@ -610,10 +619,10 @@ options() ->
      {ldap_password, <<"">>},
      {ldap_port,
       fun(Host) ->
-	      case ejabberd_config:get_option({ldap_encrypt, Host}) of
-		  tls -> 636;
-		  _ -> 389
-	      end
+              case ejabberd_config:get_option({ldap_encrypt, Host}) of
+                  tls -> 636;
+                  _ -> 389
+              end
       end},
      {ldap_rootdn, <<"">>},
      {ldap_servers, [<<"localhost">>]},
@@ -624,7 +633,7 @@ options() ->
      {ldap_uids, [{<<"uid">>, <<"%u">>}]},
      {listen, []},
      {log_rotate_count, 1},
-     {log_rotate_size, 10*1024*1024},
+     {log_rotate_size, 10 * 1024 * 1024},
      {log_burst_limit_window_time, timer:seconds(1)},
      {log_burst_limit_count, 500},
      {log_modules_fully, []},
@@ -717,22 +726,22 @@ options() ->
      {sql_database, undefined},
      {sql_keepalive_interval, undefined},
      {sql_password, <<"">>},
-     {sql_odbc_driver, <<"libtdsodbc.so">>}, % default is FreeTDS driver
+     {sql_odbc_driver, <<"libtdsodbc.so">>},  % default is FreeTDS driver
      {sql_pool_size,
       fun(Host) ->
-	      case ejabberd_config:get_option({sql_type, Host}) of
-		  sqlite -> 1;
-		  _ -> 10
-	      end
+              case ejabberd_config:get_option({sql_type, Host}) of
+                  sqlite -> 1;
+                  _ -> 10
+              end
       end},
      {sql_port,
       fun(Host) ->
-	      case ejabberd_config:get_option({sql_type, Host}) of
-		  mssql -> 1433;
-		  mysql -> 3306;
-		  pgsql -> 5432;
-		  _ -> undefined
-	      end
+              case ejabberd_config:get_option({sql_type, Host}) of
+                  mssql -> 1433;
+                  mysql -> 3306;
+                  pgsql -> 5432;
+                  _ -> undefined
+              end
       end},
      {sql_query_timeout, timer:seconds(60)},
      {sql_queue_type,
@@ -755,6 +764,7 @@ options() ->
      {jwt_jid_field, <<"jid">>},
      {jwt_auth_only_rule, none}].
 
+
 -spec globals() -> [atom()].
 globals() ->
     [acme,
@@ -829,9 +839,11 @@ globals() ->
      websocket_ping_interval,
      websocket_timeout].
 
+
 doc() ->
     ejabberd_options_doc:doc().
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
@@ -845,21 +857,23 @@ validator() ->
         Validators,
         [{disallowed, Required ++ Disallowed}, unique])).
 
+
 -spec fqdn(global | binary()) -> [binary()].
 fqdn(global) ->
     {ok, Hostname} = inet:gethostname(),
     case inet:gethostbyname(Hostname) of
-	{ok, #hostent{h_name = FQDN}} ->
-	    case jid:nameprep(iolist_to_binary(FQDN)) of
-		error -> [];
-		Domain -> [Domain]
-	    end;
-	{error, _} ->
-	    []
+        {ok, #hostent{h_name = FQDN}} ->
+            case jid:nameprep(iolist_to_binary(FQDN)) of
+                error -> [];
+                Domain -> [Domain]
+            end;
+        {error, _} ->
+            []
     end;
 fqdn(_) ->
     ejabberd_config:get_option(fqdn).
 
+
 -spec concat_binary(char()) -> fun(([binary()]) -> binary()).
 concat_binary(C) ->
     fun(Opts) -> str:join(Opts, <<C>>) end.

src/ejabberd_piefxis.erl

@@ -36,11 +36,14 @@
 
 -export([import_file/1, export_server/1, export_host/2]).
 
--define(CHUNK_SIZE, 1024*20). %20k
+-define(CHUNK_SIZE, 1024 * 20).  %20k
 
 -include_lib("xmpp/include/scram.hrl").
+
 -include("logger.hrl").
+
 -include_lib("xmpp/include/xmpp.hrl").
+
 -include("mod_privacy.hrl").
 -include("mod_roster.hrl").
 
@@ -52,9 +55,13 @@
 %%-define(INFO_MSG(M,Args),ok).
 %%%==================================
 %%%% Import file
--define(NS_PIE, <<"urn:xmpp:pie:0">>).
+-define(NS_PIE,     <<"urn:xmpp:pie:0">>).
 -define(NS_PIEFXIS, <<"http://www.xmpp.org/extensions/xep-0227.html#ns">>).
--define(NS_XI, <<"http://www.w3.org/2001/XInclude">>).
+-define(NS_XI,      <<"http://www.w3.org/2001/XInclude">>).
+
+%%
+%% @efmt:off
+%% @indent-begin
 
 -record(state, {xml_stream_state :: fxml_stream:xml_stream_state() | undefined,
                 user = <<"">>    :: binary(),
@@ -62,8 +69,13 @@
                 fd = self()      :: file:io_device(),
                 dir = <<"">>     :: binary()}).
 
+%% @indent-end
+%% @efmt:on
+           %%
+
 -type state() :: #state{}.
 
+
 %%File could be large.. we read it in chunks
 %%%===================================================================
 %%% API
@@ -71,31 +83,37 @@
 import_file(FileName) ->
     import_file(FileName, #state{}).
 
+
 -spec import_file(binary(), state()) -> ok | {error, atom()}.
 import_file(FileName, State) ->
     case file:open(FileName, [read, binary]) of
-	{ok, Fd} ->
+        {ok, Fd} ->
             Dir = filename:dirname(FileName),
             XMLStreamState = fxml_stream:new(self(), infinity),
-            Res = process(State#state{xml_stream_state = XMLStreamState,
-                                      fd = Fd,
-                                      dir = Dir}),
+            Res = process(State#state{
+                            xml_stream_state = XMLStreamState,
+                            fd = Fd,
+                            dir = Dir
+                           }),
             file:close(Fd),
             Res;
-	{error, Reason} ->
+        {error, Reason} ->
             ErrTxt = file:format_error(Reason),
             ?ERROR_MSG("Failed to open file '~ts': ~ts", [FileName, ErrTxt]),
             {error, Reason}
     end.
 
+
 -spec export_server(binary()) -> any().
 export_server(Dir) ->
     export_hosts(ejabberd_option:hosts(), Dir).
 
+
 -spec export_host(binary(), binary()) -> any().
 export_host(Dir, Host) ->
     export_hosts([Host], Dir).
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
@@ -106,12 +124,13 @@ export_hosts(Hosts, Dir) ->
         {ok, Fd} ->
             print(Fd, make_piefxis_xml_head()),
             print(Fd, make_piefxis_server_head()),
-            FilesAndHosts = [{make_host_filename(FnT, Host), Host}
-                             || Host <- Hosts],
+            FilesAndHosts = [ {make_host_filename(FnT, Host), Host}
+                              || Host <- Hosts ],
             lists:foreach(
               fun({FnH, _}) ->
                       print(Fd, make_xinclude(FnH))
-              end, FilesAndHosts),
+              end,
+              FilesAndHosts),
             print(Fd, make_piefxis_server_tail()),
             print(Fd, make_piefxis_xml_tail()),
             file:close(Fd),
@@ -120,13 +139,16 @@ export_hosts(Hosts, Dir) ->
                       export_host(Dir, FnH, Host);
                  (_, Err) ->
                       Err
-              end, ok, FilesAndHosts);
+              end,
+              ok,
+              FilesAndHosts);
         {error, Reason} ->
             ErrTxt = file:format_error(Reason),
             ?ERROR_MSG("Failed to open file '~ts': ~ts", [DFn, ErrTxt]),
             {error, Reason}
     end.
 
+
 export_host(Dir, FnH, Host) ->
     DFn = make_host_basefilename(Dir, FnH),
     case file:open(DFn, [raw, write]) of
@@ -151,7 +173,8 @@ export_host(Dir, FnH, Host) ->
             {error, Reason}
     end.
 
-export_users([{User, _S}|Users], Server, Fd) ->
+
+export_users([{User, _S} | Users], Server, Fd) ->
     case export_user(User, Server, Fd) of
         ok ->
             export_users(Users, Server, Fd);
@@ -161,14 +184,15 @@ export_users([{User, _S}|Users], Server, Fd) ->
 export_users([], _Server, _Fd) ->
     ok.
 
+
 export_user(User, Server, Fd) ->
     Password = ejabberd_auth:get_password_s(User, Server),
     LServer = jid:nameprep(Server),
     {PassPlain, PassScram} = case ejabberd_auth:password_format(LServer) of
-	       scram -> {[], [format_scram_password(Password)]};
-	       _ when Password == <<"">> -> {[], []};
-	       _ -> {[{<<"password">>, Password}], []}
-	   end,
+                                 scram -> {[], [format_scram_password(Password)]};
+                                 _ when Password == <<"">> -> {[], []};
+                                 _ -> {[{<<"password">>, Password}], []}
+                             end,
     Els =
         PassScram ++
         get_offline(User, Server) ++
@@ -176,13 +200,22 @@ export_user(User, Server, Fd) ->
         get_privacy(User, Server) ++
         get_roster(User, Server) ++
         get_private(User, Server),
-    print(Fd, fxml:element_to_binary(
-                #xmlel{name = <<"user">>,
-                       attrs = [{<<"name">>, User} | PassPlain],
-                       children = Els})).
+    print(Fd,
+          fxml:element_to_binary(
+            #xmlel{
+              name = <<"user">>,
+              attrs = [{<<"name">>, User} | PassPlain],
+              children = Els
+             })).
 
-format_scram_password(#scram{hash = Hash, storedkey = StoredKey, serverkey = ServerKey,
-			     salt = Salt, iterationcount = IterationCount}) ->
+
+format_scram_password(#scram{
+                        hash = Hash,
+                        storedkey = StoredKey,
+                        serverkey = ServerKey,
+                        salt = Salt,
+                        iterationcount = IterationCount
+                       }) ->
     StoredKeyB64 = base64:encode(StoredKey),
     ServerKeyB64 = base64:encode(ServerKey),
     SaltB64 = base64:encode(Salt),
@@ -193,20 +226,29 @@ format_scram_password(#scram{hash = Hash, storedkey = StoredKey, serverkey = Ser
                      sha512 -> <<"SCRAM-SHA-512">>
                  end,
     Children =
-        [
-         #xmlel{name = <<"iter-count">>,
-                children = [{xmlcdata, IterationCountBin}]},
-         #xmlel{name = <<"salt">>,
-                children = [{xmlcdata, SaltB64}]},
-         #xmlel{name = <<"server-key">>,
-                children = [{xmlcdata, ServerKeyB64}]},
-         #xmlel{name = <<"stored-key">>,
-                children = [{xmlcdata, StoredKeyB64}]}
-        ],
-    #xmlel{name = <<"scram-credentials">>,
-           attrs = [{<<"xmlns">>, <<?NS_PIE/binary, "#scram">>},
-                    {<<"mechanism">>, MechanismB}],
-           children = Children}.
+        [#xmlel{
+           name = <<"iter-count">>,
+           children = [{xmlcdata, IterationCountBin}]
+          },
+         #xmlel{
+           name = <<"salt">>,
+           children = [{xmlcdata, SaltB64}]
+          },
+         #xmlel{
+           name = <<"server-key">>,
+           children = [{xmlcdata, ServerKeyB64}]
+          },
+         #xmlel{
+           name = <<"stored-key">>,
+           children = [{xmlcdata, StoredKeyB64}]
+          }],
+    #xmlel{
+      name = <<"scram-credentials">>,
+      attrs = [{<<"xmlns">>, <<?NS_PIE/binary, "#scram">>},
+               {<<"mechanism">>, MechanismB}],
+      children = Children
+     }.
+
 
 parse_scram_password(#xmlel{attrs = Attrs} = El) ->
     Hash = case fxml:get_attr_s(<<"mechanism">>, Attrs) of
@@ -219,40 +261,42 @@ parse_scram_password(#xmlel{attrs = Attrs} = El) ->
     IterationCountBin = fxml:get_path_s(El, [{elem, <<"iter-count">>}, cdata]),
     SaltB64 = fxml:get_path_s(El, [{elem, <<"salt">>}, cdata]),
     #scram{
-       storedkey = base64:decode(StoredKeyB64),
-       serverkey = base64:decode(ServerKeyB64),
-       salt      = base64:decode(SaltB64),
-       hash      = Hash,
-       iterationcount = (binary_to_integer(IterationCountBin))
-      };
+      storedkey = base64:decode(StoredKeyB64),
+      serverkey = base64:decode(ServerKeyB64),
+      salt = base64:decode(SaltB64),
+      hash = Hash,
+      iterationcount = (binary_to_integer(IterationCountBin))
+     };
 
 parse_scram_password(PassData) ->
-  Split = binary:split(PassData, <<",">>, [global]),
-  [Hash, StoredKeyB64, ServerKeyB64, SaltB64, IterationCountBin] =
-  case Split of
-      [K1, K2, K3, K4] -> [sha, K1, K2, K3, K4];
-      [<<"sha256">>, K1, K2, K3, K4] -> [sha256, K1, K2, K3, K4];
-      [<<"sha512">>, K1, K2, K3, K4] -> [sha512, K1, K2, K3, K4]
-  end,
-  #scram{
-    storedkey = base64:decode(StoredKeyB64),
-    serverkey = base64:decode(ServerKeyB64),
-    salt      = base64:decode(SaltB64),
-    hash      = Hash,
-    iterationcount = (binary_to_integer(IterationCountBin))
-  }.
+    Split = binary:split(PassData, <<",">>, [global]),
+    [Hash, StoredKeyB64, ServerKeyB64, SaltB64, IterationCountBin] =
+        case Split of
+            [K1, K2, K3, K4] -> [sha, K1, K2, K3, K4];
+            [<<"sha256">>, K1, K2, K3, K4] -> [sha256, K1, K2, K3, K4];
+            [<<"sha512">>, K1, K2, K3, K4] -> [sha512, K1, K2, K3, K4]
+        end,
+    #scram{
+      storedkey = base64:decode(StoredKeyB64),
+      serverkey = base64:decode(ServerKeyB64),
+      salt = base64:decode(SaltB64),
+      hash = Hash,
+      iterationcount = (binary_to_integer(IterationCountBin))
+     }.
+
 
 -spec get_vcard(binary(), binary()) -> [xmlel()].
 get_vcard(User, Server) ->
     LUser = jid:nodeprep(User),
     LServer = jid:nameprep(Server),
     try mod_vcard:get_vcard(LUser, LServer) of
-	error -> [];
-	Els -> Els
+        error -> [];
+        Els -> Els
     catch
         error:{module_not_loaded, _, _} -> []
     end.
 
+
 -spec get_offline(binary(), binary()) -> [xmlel()].
 get_offline(User, Server) ->
     LUser = jid:nodeprep(User),
@@ -267,76 +311,92 @@ get_offline(User, Server) ->
         error:{module_not_loaded, _, _} -> []
     end.
 
+
 -spec get_privacy(binary(), binary()) -> [xmlel()].
 get_privacy(User, Server) ->
     try mod_privacy:get_user_lists(User, Server) of
-        {ok, #privacy{default = Default,
-                      lists = [_|_] = Lists}} ->
+        {ok, #privacy{
+               default = Default,
+               lists = [_ | _] = Lists
+              }} ->
             XLists = lists:map(
                        fun({Name, Items}) ->
                                XItems = lists:map(
-					  fun mod_privacy:encode_list_item/1,
-					  Items),
-			       #privacy_list{name = Name, items = XItems}
-                       end, Lists),
-	    [xmpp:encode(#privacy_query{default = Default, lists = XLists})];
+                                          fun mod_privacy:encode_list_item/1,
+                                          Items),
+                               #privacy_list{name = Name, items = XItems}
+                       end,
+                       Lists),
+            [xmpp:encode(#privacy_query{default = Default, lists = XLists})];
         _ ->
             []
     catch
         error:{module_not_loaded, _, _} -> []
     end.
 
+
 -spec get_roster(binary(), binary()) -> [xmlel()].
 get_roster(User, Server) ->
     JID = jid:make(User, Server),
     try mod_roster:get_roster(User, Server) of
-        [_|_] = Items ->
+        [_ | _] = Items ->
             Subs =
                 lists:flatmap(
-                  fun(#roster{ask = Ask,
-                              askmessage = Msg} = R)
+                  fun(#roster{
+                        ask = Ask,
+                        askmessage = Msg
+                       } = R)
                         when Ask == in; Ask == both ->
-                          Status = if is_binary(Msg) -> (Msg);
-                                      true -> <<"">>
+                          Status = if
+                                       is_binary(Msg) -> (Msg);
+                                       true -> <<"">>
                                    end,
-			  [xmpp:encode(
-			     #presence{from = jid:make(R#roster.jid),
-				       to = JID,
-				       type = subscribe,
-				       status = xmpp:mk_text(Status)})];
+                          [xmpp:encode(
+                             #presence{
+                               from = jid:make(R#roster.jid),
+                               to = JID,
+                               type = subscribe,
+                               status = xmpp:mk_text(Status)
+                              })];
                      (_) ->
                           []
-                  end, Items),
+                  end,
+                  Items),
             Rs = lists:flatmap(
                    fun(#roster{ask = in, subscription = none}) ->
                            [];
                       (R) ->
                            [mod_roster:encode_item(R)]
-                   end, Items),
-	    [xmpp:encode(#roster_query{items = Rs}) | Subs];
+                   end,
+                   Items),
+            [xmpp:encode(#roster_query{items = Rs}) | Subs];
         _ ->
             []
     catch
         error:{module_not_loaded, _, _} -> []
     end.
 
+
 -spec get_private(binary(), binary()) -> [xmlel()].
 get_private(User, Server) ->
     try mod_private:get_data(User, Server) of
-        [_|_] = Els ->
-	    [xmpp:encode(#private{sub_els = Els})];
+        [_ | _] = Els ->
+            [xmpp:encode(#private{sub_els = Els})];
         _ ->
             []
     catch
         error:{module_not_loaded, _, _} -> []
     end.
 
+
 process(#state{xml_stream_state = XMLStreamState, fd = Fd} = State) ->
     case file:read(Fd, ?CHUNK_SIZE) of
         {ok, Data} ->
             NewXMLStreamState = fxml_stream:parse(XMLStreamState, Data),
-            case process_els(State#state{xml_stream_state =
-                                             NewXMLStreamState}) of
+            case process_els(State#state{
+                               xml_stream_state =
+                                   NewXMLStreamState
+                              }) of
                 {ok, NewState} ->
                     process(NewState);
                 Err ->
@@ -348,17 +408,21 @@ process(#state{xml_stream_state = XMLStreamState, fd = Fd} = State) ->
             ok
     end.
 
+
 process_els(State) ->
     Els = gather_els(State, []),
     process_els(State, lists:reverse(Els)).
 
+
 gather_els(State, List) ->
     receive
         {'$gen_event', El} ->
             gather_els(State, [El | List])
-    after 0 ->
-        List
-end.
+    after
+        0 ->
+            List
+    end.
+
 
 process_els(State, [El | Tail]) ->
     case process_el(El, State) of
@@ -370,6 +434,7 @@ process_els(State, [El | Tail]) ->
 process_els(State, []) ->
     {ok, State}.
 
+
 process_el({xmlstreamstart, <<"server-data">>, Attrs}, State) ->
     case fxml:get_attr_s(<<"xmlns">>, Attrs) of
         ?NS_PIEFXIS ->
@@ -383,8 +448,10 @@ process_el({xmlstreamend, _}, State) ->
     {ok, State};
 process_el({xmlstreamcdata, _}, State) ->
     {ok, State};
-process_el({xmlstreamelement, #xmlel{name = <<"xi:include">>,
-                                     attrs = Attrs}},
+process_el({xmlstreamelement, #xmlel{
+                                name = <<"xi:include">>,
+                                attrs = Attrs
+                               }},
            #state{dir = Dir, user = <<"">>} = State) ->
     FileName = fxml:get_attr_s(<<"href">>, Attrs),
     case import_file(filename:join([Dir, FileName]), State) of
@@ -394,11 +461,17 @@ process_el({xmlstreamelement, #xmlel{name = <<"xi:include">>,
             Err
     end;
 process_el({xmlstreamstart, <<"host">>, Attrs}, State) ->
-    process_el({xmlstreamelement, #xmlel{name = <<"host">>,
-                                         attrs = Attrs}}, State);
-process_el({xmlstreamelement, #xmlel{name = <<"host">>,
-                                     attrs = Attrs,
-                                     children = Els}}, State) ->
+    process_el({xmlstreamelement, #xmlel{
+                                    name = <<"host">>,
+                                    attrs = Attrs
+                                   }},
+               State);
+process_el({xmlstreamelement, #xmlel{
+                                name = <<"host">>,
+                                attrs = Attrs,
+                                children = Els
+                               }},
+           State) ->
     JIDS = fxml:get_attr_s(<<"jid">>, Attrs),
     try jid:decode(JIDS) of
         #jid{lserver = S} ->
@@ -408,7 +481,8 @@ process_el({xmlstreamelement, #xmlel{name = <<"host">>,
                 false ->
                     stop("Unknown host: ~ts", [S])
             end
-    catch _:{bad_jid, _} ->
+    catch
+        _:{bad_jid, _} ->
             stop("Invalid 'jid': ~ts", [JIDS])
     end;
 process_el({xmlstreamstart, <<"user">>, Attrs}, State = #state{server = S})
@@ -428,18 +502,20 @@ process_el({xmlstreamstart, El, Attrs}, _State) ->
 process_el({xmlstreamerror, Err}, _State) ->
     stop("Failed to process element = ~p", [Err]).
 
-process_users([#xmlel{} = El|Els], State) ->
+
+process_users([#xmlel{} = El | Els], State) ->
     case process_user(El, State) of
         {ok, NewState} ->
             process_users(Els, NewState);
         Err ->
             Err
     end;
-process_users([_|Els], State) ->
+process_users([_ | Els], State) ->
     process_users(Els, State);
 process_users([], State) ->
     {ok, State}.
 
+
 process_user(#xmlel{name = <<"user">>, attrs = Attrs, children = Els} = El,
              #state{server = LServer} = State) ->
     Name = fxml:get_attr_s(<<"name">>, Attrs),
@@ -458,11 +534,12 @@ process_user(#xmlel{name = <<"user">>, attrs = Attrs, children = Els} = El,
             end
     end.
 
+
 process_password(#xmlel{name = <<"user">>, attrs = Attrs} = El, LServer) ->
     {PassPlain, PassOldScram} = case fxml:get_attr_s(<<"password">>, Attrs) of
-          <<"scram:", PassData/binary>> -> {<<"">>, PassData};
-          P -> {P, false}
-    end,
+                                    <<"scram:", PassData/binary>> -> {<<"">>, PassData};
+                                    P -> {P, false}
+                                end,
     ScramCred = fxml:get_subtag(El, <<"scram-credentials">>),
     PasswordFormat = ejabberd_auth:password_format(LServer),
     case {PassPlain, PassOldScram, ScramCred, PasswordFormat} of
@@ -474,58 +551,63 @@ process_password(#xmlel{name = <<"user">>, attrs = Attrs} = El, LServer) ->
         {<<"">>, PassOldScram, false, scram} -> parse_scram_password(PassOldScram)
     end.
 
-process_user_els([#xmlel{} = El|Els], State) ->
+
+process_user_els([#xmlel{} = El | Els], State) ->
     case process_user_el(El, State) of
         {ok, NewState} ->
             process_user_els(Els, NewState);
         Err ->
             Err
     end;
-process_user_els([_|Els], State) ->
+process_user_els([_ | Els], State) ->
     process_user_els(Els, State);
 process_user_els([], State) ->
     {ok, State}.
 
+
 process_user_el(#xmlel{name = Name, attrs = Attrs, children = Els} = El,
                 State) ->
     try
-	case {Name, fxml:get_attr_s(<<"xmlns">>, Attrs)} of
-	    {<<"query">>, ?NS_ROSTER} ->
-		process_roster(xmpp:decode(El), State);
-	    {<<"query">>, ?NS_PRIVACY} ->
-		%% Make sure <list/> elements go before <active/> and <default/>
-		process_privacy(xmpp:decode(El), State);
-	    {<<"query">>, ?NS_PRIVATE} ->
-		process_private(xmpp:decode(El), State);
-	    {<<"vCard">>, ?NS_VCARD} ->
-		process_vcard(xmpp:decode(El), State);
-	    {<<"offline-messages">>, NS} ->
-		Msgs = [xmpp:decode(E, NS, [ignore_els]) || E <- Els],
-		process_offline_msgs(Msgs, State);
-	    {<<"presence">>, ?NS_CLIENT} ->
-		process_presence(xmpp:decode(El, ?NS_CLIENT, [ignore_els]), State);
-	    _ ->
-		{ok, State}
-	end
-    catch _:{xmpp_codec, Why} ->
-	    ErrTxt = xmpp:format_error(Why),
-	    stop("failed to decode XML '~ts': ~ts",
-		 [fxml:element_to_binary(El), ErrTxt])
+        case {Name, fxml:get_attr_s(<<"xmlns">>, Attrs)} of
+            {<<"query">>, ?NS_ROSTER} ->
+                process_roster(xmpp:decode(El), State);
+            {<<"query">>, ?NS_PRIVACY} ->
+                %% Make sure <list/> elements go before <active/> and <default/>
+                process_privacy(xmpp:decode(El), State);
+            {<<"query">>, ?NS_PRIVATE} ->
+                process_private(xmpp:decode(El), State);
+            {<<"vCard">>, ?NS_VCARD} ->
+                process_vcard(xmpp:decode(El), State);
+            {<<"offline-messages">>, NS} ->
+                Msgs = [ xmpp:decode(E, NS, [ignore_els]) || E <- Els ],
+                process_offline_msgs(Msgs, State);
+            {<<"presence">>, ?NS_CLIENT} ->
+                process_presence(xmpp:decode(El, ?NS_CLIENT, [ignore_els]), State);
+            _ ->
+                {ok, State}
+        end
+    catch
+        _:{xmpp_codec, Why} ->
+            ErrTxt = xmpp:format_error(Why),
+            stop("failed to decode XML '~ts': ~ts",
+                 [fxml:element_to_binary(El), ErrTxt])
     end.
 
+
 -spec process_offline_msgs([stanza()], state()) -> {ok, state()} | {error, _}.
-process_offline_msgs([#message{} = Msg|Msgs], State) ->
+process_offline_msgs([#message{} = Msg | Msgs], State) ->
     case process_offline_msg(Msg, State) of
         {ok, NewState} ->
             process_offline_msgs(Msgs, NewState);
         Err ->
             Err
     end;
-process_offline_msgs([_|Msgs], State) ->
+process_offline_msgs([_ | Msgs], State) ->
     process_offline_msgs(Msgs, State);
 process_offline_msgs([], State) ->
     {ok, State}.
 
+
 -spec process_roster(roster_query(), state()) -> {ok, state()} | {error, _}.
 process_roster(RosterQuery, State = #state{user = U, server = S}) ->
     case mod_roster:set_items(U, S, RosterQuery) of
@@ -535,51 +617,69 @@ process_roster(RosterQuery, State = #state{user = U, server = S}) ->
             stop("Failed to write roster: ~p", [Err])
     end.
 
+
 -spec process_privacy(privacy_query(), state()) -> {ok, state()} | {error, _}.
-process_privacy(#privacy_query{lists = Lists,
-			       default = Default,
-			       active = Active},
-		State = #state{user = U, server = S}) ->
+process_privacy(#privacy_query{
+                  lists = Lists,
+                  default = Default,
+                  active = Active
+                 },
+                State = #state{user = U, server = S}) ->
     JID = jid:make(U, S),
-    if Lists /= undefined ->
-	    process_privacy2(JID, #privacy_query{lists = Lists});
-	true ->
-	    ok
+    if
+        Lists /= undefined ->
+            process_privacy2(JID, #privacy_query{lists = Lists});
+        true ->
+            ok
     end,
-    if Active /= undefined ->
-	    process_privacy2(JID, #privacy_query{active = Active});
-	true ->
-	    ok
+    if
+        Active /= undefined ->
+            process_privacy2(JID, #privacy_query{active = Active});
+        true ->
+            ok
     end,
-    if Default /= undefined ->
-	    process_privacy2(JID, #privacy_query{default = Default});
-	true ->
-	    ok
+    if
+        Default /= undefined ->
+            process_privacy2(JID, #privacy_query{default = Default});
+        true ->
+            ok
     end,
     {ok, State}.
 
+
 process_privacy2(JID, PQ) ->
-        case mod_privacy:process_iq(#iq{type = set, id = p1_rand:get_string(),
-                                from = JID, to = JID,
-                                sub_els = [PQ]}) of
-	    #iq{type = error} = ResIQ ->
-	        #stanza_error{reason = Reason} = xmpp:get_error(ResIQ),
-	        if Reason /= 'item-not-found' ->
-		    %% Failed to set default list because there is no
-		    %% list with such name. We shouldn't stop here.
-		    stop("Failed to write default privacy: ~p", [Reason]);
+    case mod_privacy:process_iq(#iq{
+                                  type = set,
+                                  id = p1_rand:get_string(),
+                                  from = JID,
+                                  to = JID,
+                                  sub_els = [PQ]
+                                 }) of
+        #iq{type = error} = ResIQ ->
+            #stanza_error{reason = Reason} = xmpp:get_error(ResIQ),
+            if
+                Reason /= 'item-not-found' ->
+                    %% Failed to set default list because there is no
+                    %% list with such name. We shouldn't stop here.
+                    stop("Failed to write default privacy: ~p", [Reason]);
                 true ->
-                   ok
-                end;
-            _ ->
-                ok
-        end.
+                    ok
+            end;
+        _ ->
+            ok
+    end.
+
 
 -spec process_private(private(), state()) -> {ok, state()} | {error, _}.
 process_private(Private, State = #state{user = U, server = S}) ->
     JID = jid:make(U, S),
-    IQ = #iq{type = set, id = p1_rand:get_string(),
-	     from = JID, to = JID, sub_els = [Private]},
+    IQ = #iq{
+           type = set,
+           id = p1_rand:get_string(),
+           from = JID,
+           to = JID,
+           sub_els = [Private]
+          },
     case mod_private:process_sm_iq(IQ) of
         #iq{type = result} ->
             {ok, State};
@@ -587,11 +687,17 @@ process_private(Private, State = #state{user = U, server = S}) ->
             stop("Failed to write private: ~p", [Err])
     end.
 
+
 -spec process_vcard(xmpp_element(), state()) -> {ok, state()} | {error, _}.
 process_vcard(El, State = #state{user = U, server = S}) ->
     JID = jid:make(U, S),
-    IQ = #iq{type = set, id = p1_rand:get_string(),
-	     from = JID, to = JID, sub_els = [El]},
+    IQ = #iq{
+           type = set,
+           id = p1_rand:get_string(),
+           from = JID,
+           to = JID,
+           sub_els = [El]
+          },
     case mod_vcard:process_sm_iq(IQ) of
         #iq{type = result} ->
             {ok, State};
@@ -599,6 +705,7 @@ process_vcard(El, State = #state{user = U, server = S}) ->
             stop("Failed to write vcard: ~p", [Err])
     end.
 
+
 -spec process_offline_msg(message(), state()) -> {ok, state()} | {error, _}.
 process_offline_msg(#message{from = undefined}, _State) ->
     stop("No 'from' attribute found", []);
@@ -608,6 +715,7 @@ process_offline_msg(Msg, State = #state{user = U, server = S}) ->
       offline_message_hook, To#jid.lserver, {pass, xmpp:set_to(Msg, To)}, []),
     {ok, State}.
 
+
 -spec process_presence(presence(), state()) -> {ok, state()} | {error, _}.
 process_presence(#presence{from = undefined}, _State) ->
     stop("No 'from' attribute found", []);
@@ -617,19 +725,23 @@ process_presence(Pres, #state{user = U, server = S} = State) ->
     ejabberd_router:route(NewPres),
     {ok, State}.
 
+
 stop(Fmt, Args) ->
     ?ERROR_MSG(Fmt, Args),
     {error, import_failed}.
 
+
 make_filename_template() ->
     {{Year, Month, Day}, {Hour, Minute, Second}} = calendar:local_time(),
     str:format("~4..0w~2..0w~2..0w-~2..0w~2..0w~2..0w",
-	       [Year, Month, Day, Hour, Minute, Second]).
+               [Year, Month, Day, Hour, Minute, Second]).
+
 
 make_main_basefilename(Dir, FnT) ->
     Filename2 = <<FnT/binary, ".xml">>,
     filename:join([Dir, Filename2]).
 
+
 %% @doc Make the filename for the host.
 %% Example: ``(<<"20080804-231550">>, <<"xmpp.domain.tld">>) ->
 %%             <<"20080804-231550_xmpp_domain_tld.xml">>''
@@ -637,34 +749,43 @@ make_host_filename(FnT, Host) ->
     Host2 = str:join(str:tokens(Host, <<".">>), <<"_">>),
     <<FnT/binary, "_", Host2/binary, ".xml">>.
 
+
 %%%==================================
 %%%% PIEFXIS formatting
 make_host_basefilename(Dir, FnT) ->
     filename:join([Dir, FnT]).
 
+
 make_piefxis_xml_head() ->
     "<?xml version='1.0' encoding='UTF-8'?>".
 
+
 make_piefxis_xml_tail() ->
     "".
 
+
 make_piefxis_server_head() ->
     io_lib:format("<server-data xmlns='~ts' xmlns:xi='~ts'>",
                   [?NS_PIE, ?NS_XI]).
 
+
 make_piefxis_server_tail() ->
     "</server-data>".
 
+
 make_piefxis_host_head(Host) ->
     io_lib:format("<host xmlns='~ts' xmlns:xi='~ts' jid='~ts'>",
                   [?NS_PIE, ?NS_XI, Host]).
 
+
 make_piefxis_host_tail() ->
     "</host>".
 
+
 make_xinclude(Fn) ->
     Base = filename:basename(Fn),
     io_lib:format("<xi:include href='~ts'/>", [Base]).
 
+
 print(Fd, String) ->
     file:write(Fd, String).

src/ejabberd_pkix.erl

@@ -33,8 +33,12 @@
 %% Hooks
 -export([ejabberd_started/0, config_reloaded/0, cert_expired/2]).
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2,
-	 terminate/2, code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 
 -include("logger.hrl").
 -define(CALL_TIMEOUT, timer:minutes(1)).
@@ -44,6 +48,7 @@
 -type state() :: #state{}.
 -type filename() :: binary().
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
@@ -51,96 +56,118 @@
 start_link() ->
     gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
 
+
 -spec add_certfile(file:filename_all()) -> {ok, filename()} | {error, pkix:error_reason()}.
 add_certfile(Path0) ->
     Path = prep_path(Path0),
-    try gen_server:call(?MODULE, {add_certfile, Path}, ?CALL_TIMEOUT)
-    catch exit:{noproc, _} ->
-	    case add_file(Path) of
-		ok -> {ok, Path};
-		Err -> Err
-	    end
+    try
+        gen_server:call(?MODULE, {add_certfile, Path}, ?CALL_TIMEOUT)
+    catch
+        exit:{noproc, _} ->
+            case add_file(Path) of
+                ok -> {ok, Path};
+                Err -> Err
+            end
     end.
 
+
 -spec del_certfile(file:filename_all()) -> ok.
 del_certfile(Path0) ->
     Path = prep_path(Path0),
-    try gen_server:call(?MODULE, {del_certfile, Path}, ?CALL_TIMEOUT)
-    catch exit:{noproc, _} ->
-	    pkix:del_file(Path)
+    try
+        gen_server:call(?MODULE, {del_certfile, Path}, ?CALL_TIMEOUT)
+    catch
+        exit:{noproc, _} ->
+            pkix:del_file(Path)
     end.
 
+
 -spec try_certfile(file:filename_all()) -> filename().
 try_certfile(Path0) ->
     Path = prep_path(Path0),
     case pkix:is_pem_file(Path) of
-	true -> Path;
-	{false, Reason} ->
-	    ?ERROR_MSG("Failed to read PEM file ~ts: ~ts",
-		       [Path, pkix:format_error(Reason)]),
-	    erlang:error(badarg)
+        true -> Path;
+        {false, Reason} ->
+            ?ERROR_MSG("Failed to read PEM file ~ts: ~ts",
+                       [Path, pkix:format_error(Reason)]),
+            erlang:error(badarg)
     end.
 
+
 -spec get_certfile(binary()) -> {ok, filename()} | error.
 get_certfile(Domain) ->
     case get_certfile_no_default(Domain) of
-	{ok, Path} ->
-	    {ok, Path};
-	error ->
-	    get_certfile()
+        {ok, Path} ->
+            {ok, Path};
+        error ->
+            get_certfile()
     end.
 
+
 -spec get_certfile_no_default(binary()) -> {ok, filename()} | error.
 get_certfile_no_default(Domain) ->
     try list_to_binary(idna:utf8_to_ascii(Domain)) of
-	ASCIIDomain ->
-	    case pkix:get_certfile(ASCIIDomain) of
-		error -> error;
-		Ret -> {ok, select_certfile(Ret)}
-	    end
-    catch _:_ ->
-	    error
+        ASCIIDomain ->
+            case pkix:get_certfile(ASCIIDomain) of
+                error -> error;
+                Ret -> {ok, select_certfile(Ret)}
+            end
+    catch
+        _:_ ->
+            error
     end.
 
+
 -spec get_certfile() -> {ok, filename()} | error.
 get_certfile() ->
     case pkix:get_certfile() of
-	error -> error;
-	Ret -> {ok, select_certfile(Ret)}
+        error -> error;
+        Ret -> {ok, select_certfile(Ret)}
     end.
 
+
 -spec certs_dir() -> file:filename_all().
 certs_dir() ->
     MnesiaDir = mnesia:system_info(directory),
     filename:join(MnesiaDir, "certs").
 
+
 -spec commit() -> ok.
 commit() ->
     gen_server:call(?MODULE, commit, ?CALL_TIMEOUT).
 
+
 -spec ejabberd_started() -> ok.
 ejabberd_started() ->
     gen_server:call(?MODULE, ejabberd_started, ?CALL_TIMEOUT).
 
+
 -spec config_reloaded() -> ok.
 config_reloaded() ->
     gen_server:call(?MODULE, config_reloaded, ?CALL_TIMEOUT).
 
+
 -spec notify_expired(pkix:notify_event()) -> ok.
 notify_expired(Event) ->
     gen_server:cast(?MODULE, Event).
 
+
 -spec cert_expired(_, pkix:cert_info()) -> ok.
-cert_expired(_Cert, #{domains := Domains,
-		      expiry := Expiry,
-		      files := [{Path, Line}|_]}) ->
+cert_expired(_Cert,
+             #{
+               domains := Domains,
+               expiry := Expiry,
+               files := [{Path, Line} | _]
+              }) ->
     ?WARNING_MSG("Certificate in ~ts (at line: ~B)~ts ~ts",
-		 [Path, Line,
-		  case Domains of
-		      [] -> "";
-		      _ -> " for " ++ misc:format_hosts_list(Domains)
-		  end,
-		  format_expiration_date(Expiry)]).
+                 [Path,
+                  Line,
+                  case Domains of
+                      [] -> "";
+                      _ -> " for " ++ misc:format_hosts_list(Domains)
+                  end,
+                  format_expiration_date(Expiry)]).
+
 
 %%%===================================================================
 %%% gen_server callbacks
@@ -152,47 +179,48 @@ init([]) ->
     ejabberd_hooks:add(config_reloaded, ?MODULE, config_reloaded, 100),
     ejabberd_hooks:add(ejabberd_started, ?MODULE, ejabberd_started, 30),
     case add_files() of
-	{_Files, []} ->
-	    {ok, #state{}};
-	{Files, [_|_]} ->
-	    case ejabberd:is_loaded() of
-		true ->
-		    {ok, #state{}};
-		false ->
-		    del_files(Files),
-		    stop_ejabberd()
-	    end
+        {_Files, []} ->
+            {ok, #state{}};
+        {Files, [_ | _]} ->
+            case ejabberd:is_loaded() of
+                true ->
+                    {ok, #state{}};
+                false ->
+                    del_files(Files),
+                    stop_ejabberd()
+            end
     end.
 
+
 -spec handle_call(term(), {pid(), term()}, state()) ->
-		  {reply, ok, state()} | {noreply, state()}.
+          {reply, ok, state()} | {noreply, state()}.
 handle_call({add_certfile, Path}, _From, State) ->
     case add_file(Path) of
-	ok ->
-	    {reply, {ok, Path}, State};
-	{error, _} = Err ->
-	    {reply, Err, State}
+        ok ->
+            {reply, {ok, Path}, State};
+        {error, _} = Err ->
+            {reply, Err, State}
     end;
 handle_call({del_certfile, Path}, _From, State) ->
     pkix:del_file(Path),
     {reply, ok, State};
 handle_call(ejabberd_started, _From, State) ->
     case do_commit() of
-	{ok, []} ->
-	    check_domain_certfiles(),
-	    {reply, ok, State};
-	_ ->
-	    stop_ejabberd()
+        {ok, []} ->
+            check_domain_certfiles(),
+            {reply, ok, State};
+        _ ->
+            stop_ejabberd()
     end;
 handle_call(config_reloaded, _From, State) ->
     Files = get_certfiles_from_config_options(),
     _ = add_files(Files),
     case do_commit() of
-	{ok, _} ->
-	    check_domain_certfiles(),
-	    {reply, ok, State};
-	error ->
-	    {reply, ok, State}
+        {ok, _} ->
+            check_domain_certfiles(),
+            {reply, ok, State};
+        error ->
+            {reply, ok, State}
     end;
 handle_call(commit, From, State) ->
     handle_call(config_reloaded, From, State);
@@ -200,6 +228,7 @@ handle_call(Request, _From, State) ->
     ?WARNING_MSG("Unexpected call: ~p", [Request]),
     {noreply, State}.
 
+
 -spec handle_cast(term(), state()) -> {noreply, state()}.
 handle_cast({cert_expired, Cert, CertInfo}, State) ->
     ejabberd_hooks:run(cert_expired, [Cert, CertInfo]),
@@ -208,23 +237,27 @@ handle_cast(Request, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Request]),
     {noreply, State}.
 
+
 -spec handle_info(term(), state()) -> {noreply, state()}.
 handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 -spec terminate(normal | shutdown | {shutdown, term()} | term(),
-		state()) -> any().
+                state()) -> any().
 terminate(_Reason, State) ->
     ejabberd_hooks:delete(cert_expired, ?MODULE, cert_expired, 50),
     ejabberd_hooks:delete(ejabberd_started, ?MODULE, ejabberd_started, 30),
     ejabberd_hooks:delete(config_reloaded, ?MODULE, config_reloaded, 100),
     del_files(State#state.files).
 
+
 -spec code_change(term() | {down, term()}, state(), term()) -> {ok, state()}.
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
@@ -233,201 +266,230 @@ add_files() ->
     Files = get_certfiles_from_config_options(),
     add_files(sets:to_list(Files), sets:new(), []).
 
+
 -spec add_files(sets:set(filename())) ->
-		{sets:set(filename()), [{filename(), pkix:error_reason()}]}.
+          {sets:set(filename()), [{filename(), pkix:error_reason()}]}.
 add_files(Files) ->
     add_files(sets:to_list(Files), sets:new(), []).
 
--spec add_files([filename()], sets:set(filename()),
-		[{filename(), pkix:error_reason()}]) ->
-		       {sets:set(filename()), [{filename(), pkix:error_reason()}]}.
-add_files([File|Files], Set, Errs) ->
+
+-spec add_files([filename()],
+                sets:set(filename()),
+                [{filename(), pkix:error_reason()}]) ->
+          {sets:set(filename()), [{filename(), pkix:error_reason()}]}.
+add_files([File | Files], Set, Errs) ->
     case add_file(File) of
-	ok ->
-	    Set1 = sets:add_element(File, Set),
-	    add_files(Files, Set1, Errs);
-	{error, Reason} ->
-	    Errs1 = [{File, Reason}|Errs],
-	    add_files(Files, Set, Errs1)
+        ok ->
+            Set1 = sets:add_element(File, Set),
+            add_files(Files, Set1, Errs);
+        {error, Reason} ->
+            Errs1 = [{File, Reason} | Errs],
+            add_files(Files, Set, Errs1)
     end;
 add_files([], Set, Errs) ->
     {Set, Errs}.
 
+
 -spec add_file(filename()) -> ok | {error, pkix:error_reason()}.
 add_file(File) ->
     case pkix:add_file(File) of
-	ok -> ok;
-	{error, Reason} = Err ->
-	    ?ERROR_MSG("Failed to read PEM file ~ts: ~ts",
-		       [File, pkix:format_error(Reason)]),
-	    Err
+        ok -> ok;
+        {error, Reason} = Err ->
+            ?ERROR_MSG("Failed to read PEM file ~ts: ~ts",
+                       [File, pkix:format_error(Reason)]),
+            Err
     end.
 
+
 -spec del_files(sets:set(filename())) -> ok.
 del_files(Files) ->
     lists:foreach(fun pkix:del_file/1, sets:to_list(Files)).
 
+
 -spec do_commit() -> {ok, [{filename(), pkix:error_reason()}]} | error.
 do_commit() ->
     CAFile = ejabberd_option:ca_file(),
     ?DEBUG("Using CA root certificates from: ~ts", [CAFile]),
     Opts = [{cafile, CAFile},
-	    {notify_before, [7*24*60*60, % 1 week
-			     24*60*60, % 1 day
-			     60*60, % 1 hour
-			     0]},
-	    {notify_fun, fun ?MODULE:notify_expired/1}],
+            {notify_before, [7 * 24 * 60 * 60,  % 1 week
+                             24 * 60 * 60,  % 1 day
+                             60 * 60,  % 1 hour
+                             0]},
+            {notify_fun, fun ?MODULE:notify_expired/1}],
     case pkix:commit(certs_dir(), Opts) of
-	{ok, Errors, Warnings, CAError} ->
-	    log_errors(Errors),
-	    log_cafile_error(CAError),
-	    log_warnings(Warnings),
-	    fast_tls_add_certfiles(),
-	    {ok, Errors};
-	{error, File, Reason} ->
-	    ?CRITICAL_MSG("Failed to write to ~ts: ~ts",
-			  [File, file:format_error(Reason)]),
-	    error
+        {ok, Errors, Warnings, CAError} ->
+            log_errors(Errors),
+            log_cafile_error(CAError),
+            log_warnings(Warnings),
+            fast_tls_add_certfiles(),
+            {ok, Errors};
+        {error, File, Reason} ->
+            ?CRITICAL_MSG("Failed to write to ~ts: ~ts",
+                          [File, file:format_error(Reason)]),
+            error
     end.
 
+
 -spec check_domain_certfiles() -> ok.
 check_domain_certfiles() ->
     Hosts = ejabberd_option:hosts(),
     Routes = ejabberd_router:get_all_routes(),
     check_domain_certfiles(Hosts ++ Routes).
 
+
 -spec check_domain_certfiles([binary()]) -> ok.
 check_domain_certfiles(Hosts) ->
     case ejabberd_listener:tls_listeners() of
-	[] -> ok;
-	_ ->
-	    lists:foreach(
-	      fun(Host) ->
-		      case get_certfile_no_default(Host) of
-			  error ->
-			      ?WARNING_MSG(
-				 "No certificate found matching ~ts",
-				 [Host]);
-			  _ ->
-			      ok
-		      end
-	      end, Hosts)
+        [] -> ok;
+        _ ->
+            lists:foreach(
+              fun(Host) ->
+                      case get_certfile_no_default(Host) of
+                          error ->
+                              ?WARNING_MSG(
+                                "No certificate found matching ~ts",
+                                [Host]);
+                          _ ->
+                              ok
+                      end
+              end,
+              Hosts)
     end.
 
+
 -spec get_certfiles_from_config_options() -> sets:set(filename()).
 get_certfiles_from_config_options() ->
     case ejabberd_option:certfiles() of
-	undefined ->
-	    sets:new();
-	Paths ->
-	    lists:foldl(
-	      fun(Path, Acc) ->
-		      Files = wildcard(Path),
-		      lists:foldl(fun sets:add_element/2, Acc, Files)
-	      end, sets:new(), Paths)
+        undefined ->
+            sets:new();
+        Paths ->
+            lists:foldl(
+              fun(Path, Acc) ->
+                      Files = wildcard(Path),
+                      lists:foldl(fun sets:add_element/2, Acc, Files)
+              end,
+              sets:new(),
+              Paths)
     end.
 
+
 -spec prep_path(file:filename_all()) -> filename().
 prep_path(Path0) ->
     case filename:pathtype(Path0) of
-	relative ->
-	    case file:get_cwd() of
-		{ok, CWD} ->
-		    unicode:characters_to_binary(filename:join(CWD, Path0));
-		{error, Reason} ->
-		    ?WARNING_MSG("Failed to get current directory name: ~ts",
-				 [file:format_error(Reason)]),
-		    unicode:characters_to_binary(Path0)
-	    end;
-	_ ->
-	    unicode:characters_to_binary(Path0)
+        relative ->
+            case file:get_cwd() of
+                {ok, CWD} ->
+                    unicode:characters_to_binary(filename:join(CWD, Path0));
+                {error, Reason} ->
+                    ?WARNING_MSG("Failed to get current directory name: ~ts",
+                                 [file:format_error(Reason)]),
+                    unicode:characters_to_binary(Path0)
+            end;
+        _ ->
+            unicode:characters_to_binary(Path0)
     end.
 
+
 -spec stop_ejabberd() -> no_return().
 stop_ejabberd() ->
     ?CRITICAL_MSG("ejabberd initialization was aborted due to "
-		  "invalid certificates configuration", []),
+                  "invalid certificates configuration",
+                  []),
     ejabberd:halt().
 
+
 -spec wildcard(file:filename_all()) -> [filename()].
 wildcard(Path) when is_binary(Path) ->
     wildcard(binary_to_list(Path));
 wildcard(Path) ->
     case filelib:wildcard(Path) of
-	[] ->
-	    ?WARNING_MSG("Path ~ts is empty, please make sure ejabberd has "
-			 "sufficient rights to read it", [Path]),
-	    [];
-	Files ->
-	    [prep_path(File) || File <- Files]
+        [] ->
+            ?WARNING_MSG("Path ~ts is empty, please make sure ejabberd has "
+                         "sufficient rights to read it",
+                         [Path]),
+            [];
+        Files ->
+            [ prep_path(File) || File <- Files ]
     end.
 
+
 -spec select_certfile({filename() | undefined,
-		       filename() | undefined,
-		       filename() | undefined}) -> filename().
+                       filename() | undefined,
+                       filename() | undefined}) -> filename().
 select_certfile({EC, _, _}) when EC /= undefined -> EC;
 select_certfile({_, RSA, _}) when RSA /= undefined -> RSA;
 select_certfile({_, _, DSA}) when DSA /= undefined -> DSA.
 
+
 -spec fast_tls_add_certfiles() -> ok.
 fast_tls_add_certfiles() ->
     lists:foreach(
       fun({Domain, Files}) ->
-	      fast_tls:add_certfile(Domain, select_certfile(Files))
-      end, pkix:get_certfiles()),
+              fast_tls:add_certfile(Domain, select_certfile(Files))
+      end,
+      pkix:get_certfiles()),
     fast_tls:clear_cache().
 
+
 reason_to_fmt({invalid_cert, _, _}) ->
     "Invalid certificate in ~ts: ~ts";
 reason_to_fmt(_) ->
     "Failed to read PEM file ~ts: ~ts".
 
+
 -spec log_warnings([{filename(), pkix:error_reason()}]) -> ok.
 log_warnings(Warnings) ->
     lists:foreach(
       fun({File, Reason}) ->
-	      ?WARNING_MSG(reason_to_fmt(Reason),
-			   [File, pkix:format_error(Reason)])
-      end, Warnings).
+              ?WARNING_MSG(reason_to_fmt(Reason),
+                           [File, pkix:format_error(Reason)])
+      end,
+      Warnings).
+
 
 -spec log_errors([{filename(), pkix:error_reason()}]) -> ok.
 log_errors(Errors) ->
     lists:foreach(
       fun({File, Reason}) ->
-	      ?ERROR_MSG(reason_to_fmt(Reason),
-			 [File, pkix:format_error(Reason)])
-      end, Errors).
+              ?ERROR_MSG(reason_to_fmt(Reason),
+                         [File, pkix:format_error(Reason)])
+      end,
+      Errors).
+
 
 -spec log_cafile_error({filename(), pkix:error_reason()} | undefined) -> ok.
 log_cafile_error({File, Reason}) ->
     ?CRITICAL_MSG("Failed to read CA certitificates from ~ts: ~ts. "
-		  "Try to change/set option 'ca_file'",
-		  [File, pkix:format_error(Reason)]);
+                  "Try to change/set option 'ca_file'",
+                  [File, pkix:format_error(Reason)]);
 log_cafile_error(_) ->
     ok.
 
+
 -spec time_before_expiration(calendar:datetime()) -> {non_neg_integer(), string()}.
 time_before_expiration(Expiry) ->
     T1 = calendar:datetime_to_gregorian_seconds(Expiry),
     T2 = calendar:datetime_to_gregorian_seconds(
-	   calendar:now_to_datetime(erlang:timestamp())),
+           calendar:now_to_datetime(erlang:timestamp())),
     Secs = max(0, T1 - T2),
-    if Secs == {0, ""};
-       Secs >= 220752000 -> {round(Secs/220752000), "year"};
-       Secs >= 2592000 -> {round(Secs/2592000), "month"};
-       Secs >= 604800 -> {round(Secs/604800), "week"};
-       Secs >= 86400 -> {round(Secs/86400), "day"};
-       Secs >= 3600 -> {round(Secs/3600), "hour"};
-       Secs >= 60 -> {round(Secs/60), "minute"};
-       true -> {Secs, "second"}
+    if
+        Secs == {0, ""};
+        Secs >= 220752000 -> {round(Secs / 220752000), "year"};
+        Secs >= 2592000 -> {round(Secs / 2592000), "month"};
+        Secs >= 604800 -> {round(Secs / 604800), "week"};
+        Secs >= 86400 -> {round(Secs / 86400), "day"};
+        Secs >= 3600 -> {round(Secs / 3600), "hour"};
+        Secs >= 60 -> {round(Secs / 60), "minute"};
+        true -> {Secs, "second"}
     end.
 
+
 -spec format_expiration_date(calendar:datetime()) -> string().
 format_expiration_date(DateTime) ->
     case time_before_expiration(DateTime) of
-	{0, _} -> "is expired";
-	{1, Unit} -> "will expire in a " ++ Unit;
-	{Int, Unit} ->
-	    "will expire in " ++ integer_to_list(Int)
-		++ " " ++ Unit ++ "s"
+        {0, _} -> "is expired";
+        {1, Unit} -> "will expire in a " ++ Unit;
+        {Int, Unit} ->
+            "will expire in " ++ integer_to_list(Int) ++
+            " " ++ Unit ++ "s"
     end.

src/ejabberd_redis_sup.erl

@@ -33,58 +33,68 @@
 
 -include("logger.hrl").
 
+
 %%%===================================================================
 %%% API functions
 %%%===================================================================
 start() ->
     case is_started() of
-	true -> ok;
-	false ->
-	    ejabberd:start_app(eredis),
-	    Spec = {?MODULE, {?MODULE, start_link, []},
-		    permanent, infinity, supervisor, [?MODULE]},
-	    case supervisor:start_child(ejabberd_db_sup, Spec) of
-		{ok, _} -> ok;
-		{error, {already_started, Pid}} ->
+        true -> ok;
+        false ->
+            ejabberd:start_app(eredis),
+            Spec = {?MODULE, {?MODULE, start_link, []},
+                             permanent,
+                             infinity,
+                             supervisor,
+                             [?MODULE]},
+            case supervisor:start_child(ejabberd_db_sup, Spec) of
+                {ok, _} -> ok;
+                {error, {already_started, Pid}} ->
                     %% Wait for the supervisor to fully start
                     _ = supervisor:count_children(Pid),
                     ok;
-		{error, Why} = Err ->
-		    ?ERROR_MSG("Failed to start ~ts: ~p", [?MODULE, Why]),
-		    Err
-	    end
+                {error, Why} = Err ->
+                    ?ERROR_MSG("Failed to start ~ts: ~p", [?MODULE, Why]),
+                    Err
+            end
     end.
 
+
 stop() ->
     ejabberd_hooks:delete(config_reloaded, ?MODULE, config_reloaded, 20),
     _ = supervisor:terminate_child(ejabberd_db_sup, ?MODULE),
     _ = supervisor:delete_child(ejabberd_db_sup, ?MODULE),
     ok.
 
+
 start_link() ->
     supervisor:start_link({local, ?MODULE}, ?MODULE, []).
 
+
 config_reloaded() ->
     case is_started() of
-	true ->
-	    lists:foreach(
-	      fun(Spec) ->
-		      supervisor:start_child(?MODULE, Spec)
-	      end, get_specs()),
-	    PoolSize = get_pool_size(),
-	    lists:foreach(
-	      fun({Id, _, _, _}) when Id > PoolSize ->
-		      case supervisor:terminate_child(?MODULE, Id) of
-			  ok -> supervisor:delete_child(?MODULE, Id);
-			  _ -> ok
-		      end;
-		 (_) ->
-		      ok
-	      end, supervisor:which_children(?MODULE));
-	false ->
-	    ok
+        true ->
+            lists:foreach(
+              fun(Spec) ->
+                      supervisor:start_child(?MODULE, Spec)
+              end,
+              get_specs()),
+            PoolSize = get_pool_size(),
+            lists:foreach(
+              fun({Id, _, _, _}) when Id > PoolSize ->
+                      case supervisor:terminate_child(?MODULE, Id) of
+                          ok -> supervisor:delete_child(?MODULE, Id);
+                          _ -> ok
+                      end;
+                 (_) ->
+                      ok
+              end,
+              supervisor:which_children(?MODULE));
+        false ->
+            ok
     end.
 
+
 %%%===================================================================
 %%% Supervisor callbacks
 %%%===================================================================
@@ -92,18 +102,26 @@ init([]) ->
     ejabberd_hooks:add(config_reloaded, ?MODULE, config_reloaded, 20),
     {ok, {{one_for_one, 500, 1}, get_specs()}}.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
 get_specs() ->
     lists:map(
       fun(I) ->
-	      {I, {ejabberd_redis, start_link, [I]},
-	       transient, 2000, worker, [?MODULE]}
-      end, lists:seq(1, get_pool_size())).
+              {I,
+               {ejabberd_redis, start_link, [I]},
+               transient,
+               2000,
+               worker,
+               [?MODULE]}
+      end,
+      lists:seq(1, get_pool_size())).
+
 
 get_pool_size() ->
     ejabberd_option:redis_pool_size() + 1.
 
+
 is_started() ->
     whereis(?MODULE) /= undefined.

src/ejabberd_regexp.erl

@@ -27,37 +27,44 @@
 
 -export([run/2, split/2, replace/3, greplace/3, sh_to_awk/1]).
 
+
 -spec run(binary(), binary()) -> match | nomatch | {error, any()}.
 
 run(String, Regexp) ->
     re:run(String, Regexp, [{capture, none}, unicode]).
 
+
 -spec split(binary(), binary()) -> [binary()].
 
 split(String, Regexp) ->
     re:split(String, Regexp, [{return, binary}]).
 
+
 -spec replace(binary(), binary(), binary()) -> binary().
 
 replace(String, Regexp, New) ->
     re:replace(String, Regexp, New, [{return, binary}]).
 
+
 -spec greplace(binary(), binary(), binary()) -> binary().
 
 greplace(String, Regexp, New) ->
     re:replace(String, Regexp, New, [global, {return, binary}]).
 
+
 %% This code was copied and adapted from xmerl_regexp.erl
 
+
 -spec sh_to_awk(binary()) -> binary().
 sh_to_awk(Sh) ->
-    iolist_to_binary([<<"^(">>, sh_to_awk_1(Sh)]).	%Fix the beginning
+    iolist_to_binary([<<"^(">>, sh_to_awk_1(Sh)]).  %Fix the beginning
 
-sh_to_awk_1(<<"*", Sh/binary>>) ->			%This matches any string
+
+sh_to_awk_1(<<"*", Sh/binary>>) ->  %This matches any string
     [<<".*">>, sh_to_awk_1(Sh)];
-sh_to_awk_1(<<"?", Sh/binary>>) ->			%This matches any character
+sh_to_awk_1(<<"?", Sh/binary>>) ->  %This matches any character
     [$., sh_to_awk_1(Sh)];
-sh_to_awk_1(<<"[^]", Sh/binary>>) ->			%This takes careful handling
+sh_to_awk_1(<<"[^]", Sh/binary>>) ->  %This takes careful handling
     [<<"\\^">>, sh_to_awk_1(Sh)];
 %% Must move '^' to end.
 sh_to_awk_1(<<"[^", Sh/binary>>) ->
@@ -66,30 +73,33 @@ sh_to_awk_1(<<"[!", Sh/binary>>) ->
     [<<"[^">>, sh_to_awk_2(Sh, false)];
 sh_to_awk_1(<<"[", Sh/binary>>) ->
     [$[, sh_to_awk_2(Sh, false)];
-sh_to_awk_1(<<C:8, Sh/binary>>) ->                     %% Unspecialise everything else which is not an escape character.
+sh_to_awk_1(<<C:8, Sh/binary>>) ->  %% Unspecialise everything else which is not an escape character.
     case sh_special_char(C) of
-        true -> [$\\,C|sh_to_awk_1(Sh)];
-        false -> [C|sh_to_awk_1(Sh)]
+        true -> [$\\, C | sh_to_awk_1(Sh)];
+        false -> [C | sh_to_awk_1(Sh)]
     end;
 sh_to_awk_1(<<>>) ->
-    <<")$">>.			                        %Fix the end
+    <<")$">>.  %Fix the end
+
 
 sh_to_awk_2(<<"]", Sh/binary>>, UpArrow) ->
-    [$]|sh_to_awk_3(Sh, UpArrow)];
+    [$] | sh_to_awk_3(Sh, UpArrow)];
 sh_to_awk_2(Sh, UpArrow) ->
     sh_to_awk_3(Sh, UpArrow).
 
+
 sh_to_awk_3(<<"]", Sh/binary>>, true) ->
     [<<"^]">>, sh_to_awk_1(Sh)];
 sh_to_awk_3(<<"]", Sh/binary>>, false) ->
-    [$]|sh_to_awk_1(Sh)];
+    [$] | sh_to_awk_1(Sh)];
 sh_to_awk_3(<<C:8, Sh/binary>>, UpArrow) ->
-    [C|sh_to_awk_3(Sh, UpArrow)];
+    [C | sh_to_awk_3(Sh, UpArrow)];
 sh_to_awk_3(<<>>, true) ->
-    [$^|sh_to_awk_1(<<>>)];
+    [$^ | sh_to_awk_1(<<>>)];
 sh_to_awk_3(<<>>, false) ->
     sh_to_awk_1(<<>>).
 
+
 %%  Test if a character is a special character.
 -spec sh_special_char(char()) -> boolean().
 sh_special_char($|) -> true;

src/ejabberd_router.erl

@@ -34,283 +34,323 @@
 
 %% API
 -export([route/1,
-	 route_error/2,
-	 route_iq/2,
-	 route_iq/3,
-	 route_iq/4,
-	 register_route/2,
-	 register_route/3,
-	 register_route/4,
-	 register_routes/1,
-	 host_of_route/1,
-	 process_iq/1,
-	 unregister_route/1,
-	 unregister_route/2,
-	 unregister_routes/1,
-	 get_all_routes/0,
-	 is_my_route/1,
-	 is_my_host/1,
-	 clean_cache/1,
-	 config_reloaded/0,
-	 get_backend/0]).
+         route_error/2,
+         route_iq/2, route_iq/3, route_iq/4,
+         register_route/2, register_route/3, register_route/4,
+         register_routes/1,
+         host_of_route/1,
+         process_iq/1,
+         unregister_route/1, unregister_route/2,
+         unregister_routes/1,
+         get_all_routes/0,
+         is_my_route/1,
+         is_my_host/1,
+         clean_cache/1,
+         config_reloaded/0,
+         get_backend/0]).
 
 -export([start_link/0]).
 
--export([init/1, handle_call/3, handle_cast/2,
-	 handle_info/2, terminate/2, code_change/3]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3]).
 
 %% Deprecated functions
 -export([route/3, route_error/4]).
 -deprecated([{route, 3}, {route_error, 4}]).
 
 %% This value is used in SIP and Megaco for a transaction lifetime.
--define(IQ_TIMEOUT, 32000).
+-define(IQ_TIMEOUT,   32000).
 -define(CALL_TIMEOUT, timer:minutes(10)).
 
 -include("logger.hrl").
 -include("ejabberd_router.hrl").
+
 -include_lib("xmpp/include/xmpp.hrl").
+
 -include("ejabberd_stacktrace.hrl").
 
+
 -callback init() -> any().
--callback register_route(binary(), binary(), local_hint(),
-			 undefined | pos_integer(), pid()) -> ok | {error, term()}.
+-callback register_route(binary(),
+                         binary(),
+                         local_hint(),
+                         undefined | pos_integer(),
+                         pid()) -> ok | {error, term()}.
 -callback unregister_route(binary(), undefined | pos_integer(), pid()) -> ok | {error, term()}.
 -callback find_routes(binary()) -> {ok, [#route{}]} | {error, any()}.
 -callback get_all_routes() -> {ok, [binary()]} | {error, any()}.
 
 -record(state, {route_monitors = #{} :: #{{binary(), pid()} => reference()}}).
 
+
 %%====================================================================
 %% API
 %%====================================================================
 start_link() ->
     ?GEN_SERVER:start_link({local, ?MODULE}, ?MODULE, [], []).
 
+
 -spec route(stanza()) -> ok.
 route(Packet) ->
-    try do_route(Packet)
-    catch ?EX_RULE(Class, Reason, St) ->
-	    StackTrace = ?EX_STACK(St),
-	    ?ERROR_MSG("Failed to route packet:~n~ts~n** ~ts",
-		       [xmpp:pp(Packet),
-			misc:format_exception(2, Class, Reason, StackTrace)])
+    try
+        do_route(Packet)
+    catch
+        ?EX_RULE(Class, Reason, St) ->
+            StackTrace = ?EX_STACK(St),
+            ?ERROR_MSG("Failed to route packet:~n~ts~n** ~ts",
+                       [xmpp:pp(Packet),
+                        misc:format_exception(2, Class, Reason, StackTrace)])
     end.
 
+
 -spec route(jid(), jid(), xmlel() | stanza()) -> ok.
 route(#jid{} = From, #jid{} = To, #xmlel{} = El) ->
     try xmpp:decode(El, ?NS_CLIENT, [ignore_els]) of
-	Pkt -> route(From, To, Pkt)
-    catch _:{xmpp_codec, Why} ->
-	    ?ERROR_MSG("Failed to decode xml element ~p when "
-		       "routing from ~ts to ~ts: ~ts",
-		       [El, jid:encode(From), jid:encode(To),
-			xmpp:format_error(Why)])
+        Pkt -> route(From, To, Pkt)
+    catch
+        _:{xmpp_codec, Why} ->
+            ?ERROR_MSG("Failed to decode xml element ~p when "
+                       "routing from ~ts to ~ts: ~ts",
+                       [El,
+                        jid:encode(From),
+                        jid:encode(To),
+                        xmpp:format_error(Why)])
     end;
 route(#jid{} = From, #jid{} = To, Packet) ->
     route(xmpp:set_from_to(Packet, From, To)).
 
+
 -spec route_error(stanza(), stanza_error()) -> ok.
 route_error(Packet, Err) ->
     Type = xmpp:get_type(Packet),
-    if Type == error; Type == result ->
-	    ok;
-       true ->
-	    route(xmpp:make_error(Packet, Err))
+    if
+        Type == error; Type == result ->
+            ok;
+        true ->
+            route(xmpp:make_error(Packet, Err))
     end.
 
+
 %% Route the error packet only if the originating packet is not an error itself.
 %% RFC3920 9.3.1
 -spec route_error(jid(), jid(), xmlel(), xmlel()) -> ok;
-		 (jid(), jid(), stanza(), stanza_error()) -> ok.
+                 (jid(), jid(), stanza(), stanza_error()) -> ok.
 route_error(From, To, #xmlel{} = ErrPacket, #xmlel{} = OrigPacket) ->
     #xmlel{attrs = Attrs} = OrigPacket,
     case <<"error">> == fxml:get_attr_s(<<"type">>, Attrs) of
-      false -> route(From, To, ErrPacket);
-      true -> ok
+        false -> route(From, To, ErrPacket);
+        true -> ok
     end;
 route_error(From, To, Packet, #stanza_error{} = Err) ->
     Type = xmpp:get_type(Packet),
-    if Type == error; Type == result ->
-	    ok;
-       true ->
-	    route(From, To, xmpp:make_error(Packet, Err))
+    if
+        Type == error; Type == result ->
+            ok;
+        true ->
+            route(From, To, xmpp:make_error(Packet, Err))
     end.
 
+
 -spec route_iq(iq(), fun((iq() | timeout) -> any())) -> ok.
 route_iq(IQ, Fun) ->
     route_iq(IQ, Fun, undefined, ?IQ_TIMEOUT).
 
+
 -spec route_iq(iq(), term(), pid() | atom()) -> ok.
 route_iq(IQ, State, Proc) ->
     route_iq(IQ, State, Proc, ?IQ_TIMEOUT).
 
+
 -spec route_iq(iq(), term(), pid() | atom(), undefined | non_neg_integer()) -> ok.
 route_iq(IQ, State, Proc, undefined) ->
     route_iq(IQ, State, Proc, ?IQ_TIMEOUT);
 route_iq(IQ, State, Proc, Timeout) ->
     ejabberd_iq:route(IQ, Proc, State, Timeout).
 
+
 -spec register_route(binary(), binary()) -> ok.
 register_route(Domain, ServerHost) ->
     register_route(Domain, ServerHost, undefined).
 
+
 -spec register_route(binary(), binary(), local_hint() | undefined) -> ok.
 register_route(Domain, ServerHost, LocalHint) ->
     register_route(Domain, ServerHost, LocalHint, self()).
 
+
 -spec register_route(binary(), binary(), local_hint() | undefined, pid()) -> ok.
 register_route(Domain, ServerHost, LocalHint, Pid) ->
     case {jid:nameprep(Domain), jid:nameprep(ServerHost)} of
-	{error, _} ->
-	    erlang:error({invalid_domain, Domain});
-	{_, error} ->
-	    erlang:error({invalid_domain, ServerHost});
-	{LDomain, LServerHost} ->
-	    Mod = get_backend(),
-	    case Mod:register_route(LDomain, LServerHost, LocalHint,
-				    get_component_number(LDomain), Pid) of
-		ok ->
-		    ?DEBUG("Route registered: ~ts", [LDomain]),
-		    monitor_route(LDomain, Pid),
-		    ejabberd_hooks:run(route_registered, [LDomain]),
-		    delete_cache(Mod, LDomain);
-		{error, Err} ->
-		    ?ERROR_MSG("Failed to register route ~ts: ~p",
-			       [LDomain, Err])
-	    end
+        {error, _} ->
+            erlang:error({invalid_domain, Domain});
+        {_, error} ->
+            erlang:error({invalid_domain, ServerHost});
+        {LDomain, LServerHost} ->
+            Mod = get_backend(),
+            case Mod:register_route(LDomain,
+                                    LServerHost,
+                                    LocalHint,
+                                    get_component_number(LDomain),
+                                    Pid) of
+                ok ->
+                    ?DEBUG("Route registered: ~ts", [LDomain]),
+                    monitor_route(LDomain, Pid),
+                    ejabberd_hooks:run(route_registered, [LDomain]),
+                    delete_cache(Mod, LDomain);
+                {error, Err} ->
+                    ?ERROR_MSG("Failed to register route ~ts: ~p",
+                               [LDomain, Err])
+            end
     end.
 
+
 -spec register_routes([{binary(), binary()}]) -> ok.
 register_routes(Domains) ->
-    lists:foreach(fun ({Domain, ServerHost}) -> register_route(Domain, ServerHost)
-		  end,
-		  Domains).
+    lists:foreach(fun({Domain, ServerHost}) -> register_route(Domain, ServerHost)
+                  end,
+                  Domains).
+
 
 -spec unregister_route(binary()) -> ok.
 unregister_route(Domain) ->
     unregister_route(Domain, self()).
 
+
 -spec unregister_route(binary(), pid()) -> ok.
 unregister_route(Domain, Pid) ->
     case jid:nameprep(Domain) of
-	error ->
-	    erlang:error({invalid_domain, Domain});
-	LDomain ->
-	    Mod = get_backend(),
-	    case Mod:unregister_route(
-		   LDomain, get_component_number(LDomain), Pid) of
-		ok ->
-		    ?DEBUG("Route unregistered: ~ts", [LDomain]),
-		    demonitor_route(LDomain, Pid),
-		    ejabberd_hooks:run(route_unregistered, [LDomain]),
-		    delete_cache(Mod, LDomain);
-		{error, Err} ->
-		    ?ERROR_MSG("Failed to unregister route ~ts: ~p",
-			       [LDomain, Err])
-	    end
+        error ->
+            erlang:error({invalid_domain, Domain});
+        LDomain ->
+            Mod = get_backend(),
+            case Mod:unregister_route(
+                   LDomain, get_component_number(LDomain), Pid) of
+                ok ->
+                    ?DEBUG("Route unregistered: ~ts", [LDomain]),
+                    demonitor_route(LDomain, Pid),
+                    ejabberd_hooks:run(route_unregistered, [LDomain]),
+                    delete_cache(Mod, LDomain);
+                {error, Err} ->
+                    ?ERROR_MSG("Failed to unregister route ~ts: ~p",
+                               [LDomain, Err])
+            end
     end.
 
+
 -spec unregister_routes([binary()]) -> ok.
 unregister_routes(Domains) ->
-    lists:foreach(fun (Domain) -> unregister_route(Domain)
-		  end,
-		  Domains).
+    lists:foreach(fun(Domain) -> unregister_route(Domain)
+                  end,
+                  Domains).
+
 
 -spec find_routes(binary()) -> [#route{}].
 find_routes(Domain) ->
     Mod = get_backend(),
     case use_cache(Mod) of
-	true ->
-	    case ets_cache:lookup(
-		   ?ROUTES_CACHE, {route, Domain},
-		   fun() ->
-			   case Mod:find_routes(Domain) of
-			       {ok, Rs} when Rs /= [] ->
-				   {ok, Rs};
-			       _ ->
-				   error
-			   end
-		   end) of
-		{ok, Rs} -> Rs;
-		error -> []
-	    end;
-	false ->
-	    case Mod:find_routes(Domain) of
-		{ok, Rs} -> Rs;
-		_ -> []
-	    end
+        true ->
+            case ets_cache:lookup(
+                   ?ROUTES_CACHE,
+                   {route, Domain},
+                   fun() ->
+                           case Mod:find_routes(Domain) of
+                               {ok, Rs} when Rs /= [] ->
+                                   {ok, Rs};
+                               _ ->
+                                   error
+                           end
+                   end) of
+                {ok, Rs} -> Rs;
+                error -> []
+            end;
+        false ->
+            case Mod:find_routes(Domain) of
+                {ok, Rs} -> Rs;
+                _ -> []
+            end
     end.
 
+
 -spec get_all_routes() -> [binary()].
 get_all_routes() ->
     Mod = get_backend(),
     case use_cache(Mod) of
-	true ->
-	    case ets_cache:lookup(
-		   ?ROUTES_CACHE, routes,
-		   fun() ->
-			   case Mod:get_all_routes() of
-			       {ok, Rs} when Rs /= [] ->
-				   {ok, Rs};
-			       _ ->
-				   error
-			   end
-		   end) of
-		{ok, Rs} -> Rs;
-		error -> []
-	    end;
-	false ->
-	    case Mod:get_all_routes() of
-		{ok, Rs} -> Rs;
-		_ -> []
-	    end
+        true ->
+            case ets_cache:lookup(
+                   ?ROUTES_CACHE,
+                   routes,
+                   fun() ->
+                           case Mod:get_all_routes() of
+                               {ok, Rs} when Rs /= [] ->
+                                   {ok, Rs};
+                               _ ->
+                                   error
+                           end
+                   end) of
+                {ok, Rs} -> Rs;
+                error -> []
+            end;
+        false ->
+            case Mod:get_all_routes() of
+                {ok, Rs} -> Rs;
+                _ -> []
+            end
     end.
 
+
 -spec host_of_route(binary()) -> binary().
 host_of_route(Domain) ->
     case jid:nameprep(Domain) of
-	error ->
-	    erlang:error({invalid_domain, Domain});
-	LDomain ->
-	    case find_routes(LDomain) of
-		[#route{server_host = ServerHost}|_] ->
-		    ServerHost;
-		_ ->
-		    erlang:error({unregistered_route, Domain})
-	    end
+        error ->
+            erlang:error({invalid_domain, Domain});
+        LDomain ->
+            case find_routes(LDomain) of
+                [#route{server_host = ServerHost} | _] ->
+                    ServerHost;
+                _ ->
+                    erlang:error({unregistered_route, Domain})
+            end
     end.
 
+
 -spec is_my_route(binary()) -> boolean().
 is_my_route(Domain) ->
     case jid:nameprep(Domain) of
-	error ->
-	    erlang:error({invalid_domain, Domain});
-	LDomain ->
-	    find_routes(LDomain) /= []
+        error ->
+            erlang:error({invalid_domain, Domain});
+        LDomain ->
+            find_routes(LDomain) /= []
     end.
 
+
 -spec is_my_host(binary()) -> boolean().
 is_my_host(Domain) ->
     case jid:nameprep(Domain) of
-	error ->
-	    erlang:error({invalid_domain, Domain});
-	LDomain ->
-	    case find_routes(LDomain) of
-		[#route{server_host = LDomain}|_] -> true;
-		_ -> false
-	    end
+        error ->
+            erlang:error({invalid_domain, Domain});
+        LDomain ->
+            case find_routes(LDomain) of
+                [#route{server_host = LDomain} | _] -> true;
+                _ -> false
+            end
     end.
 
+
 -spec process_iq(iq()) -> any().
 process_iq(IQ) ->
     gen_iq_handler:handle(IQ).
 
+
 -spec config_reloaded() -> ok.
 config_reloaded() ->
     Mod = get_backend(),
     init_cache(Mod).
 
+
 %%====================================================================
 %% gen_server callbacks
 %%====================================================================
@@ -322,60 +362,69 @@ init([]) ->
     clean_cache(),
     {ok, #state{}}.
 
+
 handle_call({monitor, Domain, Pid}, _From, State) ->
     MRefs = State#state.route_monitors,
     MRefs1 = case maps:is_key({Domain, Pid}, MRefs) of
-		 true -> MRefs;
-		 false ->
-		     MRef = erlang:monitor(process, Pid),
-		     MRefs#{{Domain, Pid} => MRef}
-	     end,
+                 true -> MRefs;
+                 false ->
+                     MRef = erlang:monitor(process, Pid),
+                     MRefs#{{Domain, Pid} => MRef}
+             end,
     {reply, ok, State#state{route_monitors = MRefs1}};
 handle_call({demonitor, Domain, Pid}, _From, State) ->
     MRefs = State#state.route_monitors,
     MRefs1 = case maps:find({Domain, Pid}, MRefs) of
-		 {ok, MRef} ->
-		     erlang:demonitor(MRef, [flush]),
-		     maps:remove({Domain, Pid}, MRefs);
-		 error ->
-		     MRefs
-	     end,
+                 {ok, MRef} ->
+                     erlang:demonitor(MRef, [flush]),
+                     maps:remove({Domain, Pid}, MRefs);
+                 error ->
+                     MRefs
+             end,
     {reply, ok, State#state{route_monitors = MRefs1}};
 handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 handle_info({route, Packet}, State) ->
     route(Packet),
     {noreply, State};
 handle_info({'DOWN', MRef, _, Pid, Info}, State) ->
     MRefs = maps:filter(
-	      fun({Domain, P}, M) when P == Pid, M == MRef ->
-		      ?DEBUG("Process ~p with route registered to ~ts "
-			     "has terminated unexpectedly with reason: ~p",
-			     [P, Domain, Info]),
-		      try unregister_route(Domain, Pid)
-		      catch _:_ -> ok
-		      end,
-		      false;
-		 (_, _) ->
-		      true
-	      end, State#state.route_monitors),
+              fun({Domain, P}, M) when P == Pid, M == MRef ->
+                      ?DEBUG("Process ~p with route registered to ~ts "
+                             "has terminated unexpectedly with reason: ~p",
+                             [P, Domain, Info]),
+                      try
+                          unregister_route(Domain, Pid)
+                      catch
+                          _:_ -> ok
+                      end,
+                      false;
+                 (_, _) ->
+                      true
+              end,
+              State#state.route_monitors),
     {noreply, State#state{route_monitors = MRefs}};
 handle_info(Info, State) ->
     ?ERROR_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 terminate(_Reason, _State) ->
     ejabberd_hooks:delete(config_reloaded, ?MODULE, config_reloaded, 50).
 
+
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 %%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
@@ -384,149 +433,167 @@ do_route(OrigPacket1) ->
     ?DEBUG("Route:~n~ts", [xmpp:pp(OrigPacket1)]),
     OrigPacket = process_privilege_iq(OrigPacket1),
     case ejabberd_hooks:run_fold(filter_packet, OrigPacket, []) of
-	drop ->
-	    ok;
-	Packet ->
-	    case ejabberd_iq:dispatch(Packet) of
-		true ->
-		    ok;
-		false ->
-		    To = xmpp:get_to(Packet),
-		    LDstDomain = To#jid.lserver,
-		    case find_routes(LDstDomain) of
-			[] ->
-			    ejabberd_s2s:route(Packet);
-			[Route] ->
-			    do_route(Packet, Route);
-			Routes ->
-			    From = xmpp:get_from(Packet),
-			    balancing_route(From, To, Packet, Routes)
-		    end,
-		    ok
-	    end
+        drop ->
+            ok;
+        Packet ->
+            case ejabberd_iq:dispatch(Packet) of
+                true ->
+                    ok;
+                false ->
+                    To = xmpp:get_to(Packet),
+                    LDstDomain = To#jid.lserver,
+                    case find_routes(LDstDomain) of
+                        [] ->
+                            ejabberd_s2s:route(Packet);
+                        [Route] ->
+                            do_route(Packet, Route);
+                        Routes ->
+                            From = xmpp:get_from(Packet),
+                            balancing_route(From, To, Packet, Routes)
+                    end,
+                    ok
+            end
     end.
 
+
 %% @format-begin
 process_privilege_iq(Packet) ->
     Type = xmpp:get_type(Packet),
     case xmpp:get_meta(Packet, privilege_iq, none) of
         {OriginalId, OriginalHost, ReplacedJid} when (Type == result) or (Type == error) ->
             Privilege = #privilege{forwarded = #forwarded{sub_els = [Packet]}},
-            #iq{type = xmpp:get_type(Packet),
-                id = OriginalId,
-                to = jid:make(OriginalHost),
-                from = ReplacedJid,
-                sub_els = [Privilege]};
+            #iq{
+              type = xmpp:get_type(Packet),
+              id = OriginalId,
+              to = jid:make(OriginalHost),
+              from = ReplacedJid,
+              sub_els = [Privilege]
+             };
         _ ->
             Packet
     end.
 %% @format-end
 
+
 -spec do_route(stanza(), #route{}) -> any().
-do_route(Pkt, #route{local_hint = LocalHint,
-		     pid = Pid}) when is_pid(Pid) ->
+do_route(Pkt,
+         #route{
+           local_hint = LocalHint,
+           pid = Pid
+          }) when is_pid(Pid) ->
     case LocalHint of
-	{apply, Module, Function} when node(Pid) == node() ->
-	    Module:Function(Pkt);
-	_ ->
-	    ejabberd_cluster:send(Pid, {route, Pkt})
+        {apply, Module, Function} when node(Pid) == node() ->
+            Module:Function(Pkt);
+        _ ->
+            ejabberd_cluster:send(Pid, {route, Pkt})
     end;
 do_route(_Pkt, _Route) ->
     ok.
 
+
 -spec balancing_route(jid(), jid(), stanza(), [#route{}]) -> any().
 balancing_route(From, To, Packet, Rs) ->
     case get_domain_balancing(From, To, To#jid.lserver) of
-	undefined ->
-	    Value = erlang:system_time(),
-	    case [R || R <- Rs, node(R#route.pid) == node()] of
-		[] ->
-		    R = lists:nth(erlang:phash2(Value, length(Rs))+1, Rs),
-		    do_route(Packet, R);
-		LRs ->
-		    R = lists:nth(erlang:phash2(Value, length(LRs))+1, LRs),
-		    do_route(Packet, R)
-	    end;
-	Value ->
-	    SRs = lists:ukeysort(#route.local_hint, Rs),
-	    R = lists:nth(erlang:phash2(Value, length(SRs))+1, SRs),
-	    do_route(Packet, R)
+        undefined ->
+            Value = erlang:system_time(),
+            case [ R || R <- Rs, node(R#route.pid) == node() ] of
+                [] ->
+                    R = lists:nth(erlang:phash2(Value, length(Rs)) + 1, Rs),
+                    do_route(Packet, R);
+                LRs ->
+                    R = lists:nth(erlang:phash2(Value, length(LRs)) + 1, LRs),
+                    do_route(Packet, R)
+            end;
+        Value ->
+            SRs = lists:ukeysort(#route.local_hint, Rs),
+            R = lists:nth(erlang:phash2(Value, length(SRs)) + 1, SRs),
+            do_route(Packet, R)
     end.
 
+
 -spec get_component_number(binary()) -> pos_integer() | undefined.
 get_component_number(LDomain) ->
     M = ejabberd_option:domain_balancing(),
     case maps:get(LDomain, M, undefined) of
-	undefined -> undefined;
-	Opts -> maps:get(component_number, Opts)
+        undefined -> undefined;
+        Opts -> maps:get(component_number, Opts)
     end.
 
+
 -spec get_domain_balancing(jid(), jid(), binary()) -> integer() | ljid() | undefined.
 get_domain_balancing(From, To, LDomain) ->
     M = ejabberd_option:domain_balancing(),
     case maps:get(LDomain, M, undefined) of
-	undefined -> undefined;
-	Opts ->
-	    case maps:get(type, Opts, random) of
-		random -> erlang:system_time();
-		source -> jid:tolower(From);
-		destination -> jid:tolower(To);
-		bare_source -> jid:remove_resource(jid:tolower(From));
-		bare_destination -> jid:remove_resource(jid:tolower(To))
-	    end
+        undefined -> undefined;
+        Opts ->
+            case maps:get(type, Opts, random) of
+                random -> erlang:system_time();
+                source -> jid:tolower(From);
+                destination -> jid:tolower(To);
+                bare_source -> jid:remove_resource(jid:tolower(From));
+                bare_destination -> jid:remove_resource(jid:tolower(To))
+            end
     end.
 
+
 -spec monitor_route(binary(), pid()) -> ok.
 monitor_route(Domain, Pid) ->
     ?GEN_SERVER:call(?MODULE, {monitor, Domain, Pid}, ?CALL_TIMEOUT).
 
+
 -spec demonitor_route(binary(), pid()) -> ok.
 demonitor_route(Domain, Pid) ->
     case whereis(?MODULE) == self() of
-	true ->
-	    ok;
-	false ->
-	    ?GEN_SERVER:call(?MODULE, {demonitor, Domain, Pid}, ?CALL_TIMEOUT)
+        true ->
+            ok;
+        false ->
+            ?GEN_SERVER:call(?MODULE, {demonitor, Domain, Pid}, ?CALL_TIMEOUT)
     end.
 
+
 -spec get_backend() -> module().
 get_backend() ->
     DBType = ejabberd_option:router_db_type(),
     list_to_existing_atom("ejabberd_router_" ++ atom_to_list(DBType)).
 
+
 -spec cache_nodes(module()) -> [node()].
 cache_nodes(Mod) ->
     case erlang:function_exported(Mod, cache_nodes, 0) of
-	true -> Mod:cache_nodes();
-	false -> ejabberd_cluster:get_nodes()
+        true -> Mod:cache_nodes();
+        false -> ejabberd_cluster:get_nodes()
     end.
 
+
 -spec use_cache(module()) -> boolean().
 use_cache(Mod) ->
     case erlang:function_exported(Mod, use_cache, 0) of
-	true -> Mod:use_cache();
-	false -> ejabberd_option:router_use_cache()
+        true -> Mod:use_cache();
+        false -> ejabberd_option:router_use_cache()
     end.
 
+
 -spec delete_cache(module(), binary()) -> ok.
 delete_cache(Mod, Domain) ->
     case use_cache(Mod) of
-	true ->
-	    ets_cache:delete(?ROUTES_CACHE, {route, Domain}, cache_nodes(Mod)),
-	    ets_cache:delete(?ROUTES_CACHE, routes, cache_nodes(Mod));
-	false ->
-	    ok
+        true ->
+            ets_cache:delete(?ROUTES_CACHE, {route, Domain}, cache_nodes(Mod)),
+            ets_cache:delete(?ROUTES_CACHE, routes, cache_nodes(Mod));
+        false ->
+            ok
     end.
 
+
 -spec init_cache(module()) -> ok.
 init_cache(Mod) ->
     case use_cache(Mod) of
-	true ->
-	    ets_cache:new(?ROUTES_CACHE, cache_opts());
-	false ->
-	    ets_cache:delete(?ROUTES_CACHE)
+        true ->
+            ets_cache:new(?ROUTES_CACHE, cache_opts());
+        false ->
+            ets_cache:delete(?ROUTES_CACHE)
     end.
 
+
 -spec cache_opts() -> [proplists:property()].
 cache_opts() ->
     MaxSize = ejabberd_option:router_cache_size(),
@@ -534,21 +601,24 @@ cache_opts() ->
     LifeTime = ejabberd_option:router_cache_life_time(),
     [{max_size, MaxSize}, {cache_missed, CacheMissed}, {life_time, LifeTime}].
 
+
 -spec clean_cache(node()) -> non_neg_integer().
 clean_cache(Node) ->
     ets_cache:filter(
       ?ROUTES_CACHE,
       fun(_, error) ->
-	      false;
-	 (routes, _) ->
-	      false;
-	 ({route, _}, {ok, Rs}) ->
-	      not lists:any(
-		    fun(#route{pid = Pid}) ->
-			    node(Pid) == Node
-		    end, Rs)
+              false;
+         (routes, _) ->
+              false;
+         ({route, _}, {ok, Rs}) ->
+              not lists:any(
+                fun(#route{pid = Pid}) ->
+                        node(Pid) == Node
+                end,
+                Rs)
       end).
 
+
 -spec clean_cache() -> ok.
 clean_cache() ->
     ejabberd_cluster:eval_everywhere(?MODULE, clean_cache, [node()]).

src/ejabberd_router_mnesia.erl

@@ -24,213 +24,260 @@
 -behaviour(gen_server).
 
 %% API
--export([init/0, register_route/5, unregister_route/3, find_routes/1,
-	 get_all_routes/0, use_cache/0]).
+-export([init/0,
+         register_route/5,
+         unregister_route/3,
+         find_routes/1,
+         get_all_routes/0,
+         use_cache/0]).
 %% gen_server callbacks
--export([init/1, handle_cast/2, handle_call/3, handle_info/2,
-	 terminate/2, code_change/3, start_link/0]).
+-export([init/1,
+         handle_cast/2,
+         handle_call/3,
+         handle_info/2,
+         terminate/2,
+         code_change/3,
+         start_link/0]).
 
 -include("ejabberd_router.hrl").
 -include("logger.hrl").
+
 -include_lib("stdlib/include/ms_transform.hrl").
 
 -record(state, {}).
 
+
 %%%===================================================================
 %%% API
 %%%===================================================================
 -spec init() -> ok | {error, any()}.
 init() ->
     Spec = {?MODULE, {?MODULE, start_link, []},
-	    transient, 5000, worker, [?MODULE]},
+                     transient,
+                     5000,
+                     worker,
+                     [?MODULE]},
     case supervisor:start_child(ejabberd_backend_sup, Spec) of
-	{ok, _Pid} -> ok;
-	Err -> Err
+        {ok, _Pid} -> ok;
+        Err -> Err
     end.
 
+
 -spec start_link() -> {ok, pid()} | {error, any()}.
 start_link() ->
     gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
 
+
 use_cache() ->
     false.
 
+
 register_route(Domain, ServerHost, LocalHint, undefined, Pid) ->
-    F = fun () ->
-		mnesia:write(#route{domain = Domain,
-				    pid = Pid,
-				    server_host = ServerHost,
-				    local_hint = LocalHint})
-	end,
+    F = fun() ->
+                mnesia:write(#route{
+                               domain = Domain,
+                               pid = Pid,
+                               server_host = ServerHost,
+                               local_hint = LocalHint
+                              })
+        end,
     transaction(F);
 register_route(Domain, ServerHost, _LocalHint, N, Pid) ->
-    F = fun () ->
-		case mnesia:wread({route, Domain}) of
-		    [] ->
-			mnesia:write(#route{domain = Domain,
-					    server_host = ServerHost,
-					    pid = Pid,
-					    local_hint = 1}),
-			lists:foreach(
-			  fun (I) ->
-				  mnesia:write(
-				    #route{domain = Domain,
-					   pid = undefined,
-					   server_host = ServerHost,
-					   local_hint = I})
-			  end,
-			  lists:seq(2, N));
-		    Rs ->
-			lists:any(
-			  fun (#route{pid = undefined,
-				      local_hint = I} = R) ->
-				  mnesia:write(
-				    #route{domain = Domain,
-					   pid = Pid,
-					   server_host = ServerHost,
-					   local_hint = I}),
-				  mnesia:delete_object(R),
-				  true;
-			      (_) -> false
-			  end,
-			  Rs)
-		end
-	end,
+    F = fun() ->
+                case mnesia:wread({route, Domain}) of
+                    [] ->
+                        mnesia:write(#route{
+                                       domain = Domain,
+                                       server_host = ServerHost,
+                                       pid = Pid,
+                                       local_hint = 1
+                                      }),
+                        lists:foreach(
+                          fun(I) ->
+                                  mnesia:write(
+                                    #route{
+                                      domain = Domain,
+                                      pid = undefined,
+                                      server_host = ServerHost,
+                                      local_hint = I
+                                     })
+                          end,
+                          lists:seq(2, N));
+                    Rs ->
+                        lists:any(
+                          fun(#route{
+                                pid = undefined,
+                                local_hint = I
+                               } = R) ->
+                                  mnesia:write(
+                                    #route{
+                                      domain = Domain,
+                                      pid = Pid,
+                                      server_host = ServerHost,
+                                      local_hint = I
+                                     }),
+                                  mnesia:delete_object(R),
+                                  true;
+                             (_) -> false
+                          end,
+                          Rs)
+                end
+        end,
     transaction(F).
 
+
 unregister_route(Domain, undefined, Pid) ->
-    F = fun () ->
-		case mnesia:select(
-		       route,
-		       ets:fun2ms(
-			 fun(#route{domain = D, pid = P} = R)
-			       when D == Domain, P == Pid -> R
-			 end)) of
-		    [R] -> mnesia:delete_object(R);
-		    _ -> ok
-		end
-	end,
+    F = fun() ->
+                case mnesia:select(
+                       route,
+                       ets:fun2ms(
+                         fun(#route{domain = D, pid = P} = R)
+                               when D == Domain, P == Pid -> R
+                         end)) of
+                    [R] -> mnesia:delete_object(R);
+                    _ -> ok
+                end
+        end,
     transaction(F);
 unregister_route(Domain, _, Pid) ->
-    F = fun () ->
-		case mnesia:select(
-		       route,
-		       ets:fun2ms(
-			 fun(#route{domain = D, pid = P} = R)
-			       when D == Domain, P == Pid -> R
-			 end)) of
-		    [R] ->
-			I = R#route.local_hint,
-			ServerHost = R#route.server_host,
-			mnesia:write(#route{domain = Domain,
-					    server_host = ServerHost,
-					    pid = undefined,
-					    local_hint = I}),
-			mnesia:delete_object(R);
-		    _ -> ok
-		end
-	end,
+    F = fun() ->
+                case mnesia:select(
+                       route,
+                       ets:fun2ms(
+                         fun(#route{domain = D, pid = P} = R)
+                               when D == Domain, P == Pid -> R
+                         end)) of
+                    [R] ->
+                        I = R#route.local_hint,
+                        ServerHost = R#route.server_host,
+                        mnesia:write(#route{
+                                       domain = Domain,
+                                       server_host = ServerHost,
+                                       pid = undefined,
+                                       local_hint = I
+                                      }),
+                        mnesia:delete_object(R);
+                    _ -> ok
+                end
+        end,
     transaction(F).
 
+
 find_routes(Domain) ->
     {ok, mnesia:dirty_read(route, Domain)}.
 
+
 get_all_routes() ->
     {ok, mnesia:dirty_select(
-	   route,
-	   ets:fun2ms(
-	     fun(#route{domain = Domain, server_host = ServerHost})
-		   when Domain /= ServerHost -> Domain
-	     end))}.
+           route,
+           ets:fun2ms(
+             fun(#route{domain = Domain, server_host = ServerHost})
+                   when Domain /= ServerHost -> Domain
+             end))}.
+
 
 %%%===================================================================
 %%% gen_server callbacks
 %%%===================================================================
 init([]) ->
     update_tables(),
-    ejabberd_mnesia:create(?MODULE, route,
-			   [{ram_copies, [node()]},
-			    {type, bag},
-			    {attributes, record_info(fields, route)}]),
+    ejabberd_mnesia:create(?MODULE,
+                           route,
+                           [{ram_copies, [node()]},
+                            {type, bag},
+                            {attributes, record_info(fields, route)}]),
     mnesia:subscribe({table, route, simple}),
     lists:foreach(
-      fun (Pid) -> erlang:monitor(process, Pid) end,
+      fun(Pid) -> erlang:monitor(process, Pid) end,
       mnesia:dirty_select(
-	route,
-	ets:fun2ms(
-	  fun(#route{pid = Pid}) -> Pid end))),
+        route,
+        ets:fun2ms(
+          fun(#route{pid = Pid}) -> Pid end))),
     {ok, #state{}}.
 
+
 handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 handle_info({mnesia_table_event,
-	     {write, #route{pid = Pid}, _ActivityId}}, State) ->
+             {write, #route{pid = Pid}, _ActivityId}},
+            State) ->
     erlang:monitor(process, Pid),
     {noreply, State};
 handle_info({mnesia_table_event, _}, State) ->
     {noreply, State};
 handle_info({'DOWN', _Ref, _Type, Pid, _Info}, State) ->
-    F = fun () ->
-		Es = mnesia:select(
-		       route,
-		       ets:fun2ms(
-			 fun(#route{pid = P} = E)
-			       when P == Pid -> E
-			 end)),
-		lists:foreach(
-		  fun(E) ->
-			  if is_integer(E#route.local_hint) ->
-				  LDomain = E#route.domain,
-				  I = E#route.local_hint,
-				  ServerHost = E#route.server_host,
-				  mnesia:write(#route{domain = LDomain,
-						      server_host = ServerHost,
-						      pid = undefined,
-						      local_hint = I}),
-				  mnesia:delete_object(E);
-			     true ->
-				  mnesia:delete_object(E)
-			  end
-		  end, Es)
-	end,
+    F = fun() ->
+                Es = mnesia:select(
+                       route,
+                       ets:fun2ms(
+                         fun(#route{pid = P} = E)
+                               when P == Pid -> E
+                         end)),
+                lists:foreach(
+                  fun(E) ->
+                          if
+                              is_integer(E#route.local_hint) ->
+                                  LDomain = E#route.domain,
+                                  I = E#route.local_hint,
+                                  ServerHost = E#route.server_host,
+                                  mnesia:write(#route{
+                                                 domain = LDomain,
+                                                 server_host = ServerHost,
+                                                 pid = undefined,
+                                                 local_hint = I
+                                                }),
+                                  mnesia:delete_object(E);
+                              true ->
+                                  mnesia:delete_object(E)
+                          end
+                  end,
+                  Es)
+        end,
     transaction(F),
     {noreply, State};
 handle_info(Info, State) ->
     ?ERROR_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 terminate(_Reason, _State) ->
     ok.
 
+
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 %%%===================================================================
 %%% Internal functions
 %%%===================================================================
 transaction(F) ->
     case mnesia:transaction(F) of
-	{atomic, _} ->
-	    ok;
-	{aborted, Reason} ->
-	    ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
-	    {error, db_failure}
+        {atomic, _} ->
+            ok;
+        {aborted, Reason} ->
+            ?ERROR_MSG("Mnesia transaction failed: ~p", [Reason]),
+            {error, db_failure}
     end.
 
+
 -spec update_tables() -> ok.
 update_tables() ->
     try
-	mnesia:transform_table(route, ignore, record_info(fields, route))
-    catch exit:{aborted, {no_exists, _}} ->
-	    ok
+        mnesia:transform_table(route, ignore, record_info(fields, route))
+    catch
+        exit:{aborted, {no_exists, _}} ->
+            ok
     end,
     case lists:member(local_route, mnesia:system_info(tables)) of
-	true -> mnesia:delete_table(local_route);
-	false -> ok
+        true -> mnesia:delete_table(local_route);
+        false -> ok
     end.

src/ejabberd_router_multicast.erl

@@ -31,23 +31,31 @@
 
 %% API
 -export([route_multicast/5,
-	 register_route/1,
-	 unregister_route/1
-	]).
+         register_route/1,
+         unregister_route/1]).
 
 -export([start_link/0]).
 
 %% gen_server callbacks
--export([init/1, handle_call/3, handle_cast/2, handle_info/2,
-	 terminate/2, code_change/3, update_to_in_wrapped/2]).
+-export([init/1,
+         handle_call/3,
+         handle_cast/2,
+         handle_info/2,
+         terminate/2,
+         code_change/3,
+         update_to_in_wrapped/2]).
 
 -include("logger.hrl").
+
 -include_lib("xmpp/include/xmpp.hrl").
 
--record(route_multicast, {domain = <<"">> :: binary() | '_',
-			  pid = self() :: pid()}).
+-record(route_multicast, {
+          domain = <<"">> :: binary() | '_',
+          pid = self() :: pid()
+         }).
 -record(state, {}).
 
+
 %%====================================================================
 %% API
 %%====================================================================
@@ -58,49 +66,54 @@
 start_link() ->
     gen_server:start_link({local, ?MODULE}, ?MODULE, [], []).
 
+
 -spec route_multicast(jid(), binary(), [jid()], stanza(), boolean()) -> ok.
 route_multicast(From0, Domain0, Destinations0, Packet0, Wrapped0) ->
     {From, Domain, Destinations, Packet, Wrapped} =
-    ejabberd_hooks:run_fold(multicast_route, Domain0, {From0, Domain0, Destinations0, Packet0, Wrapped0}, []),
+        ejabberd_hooks:run_fold(multicast_route, Domain0, {From0, Domain0, Destinations0, Packet0, Wrapped0}, []),
     case catch do_route(Domain, Destinations, xmpp:set_from(Packet, From), Wrapped) of
-	{'EXIT', Reason} ->
-	    ?ERROR_MSG("~p~nwhen processing: ~p",
-		       [Reason, {From, Domain, Destinations, Packet}]);
-	_ ->
-	    ok
+        {'EXIT', Reason} ->
+            ?ERROR_MSG("~p~nwhen processing: ~p",
+                       [Reason, {From, Domain, Destinations, Packet}]);
+        _ ->
+            ok
     end.
 
+
 -spec register_route(binary()) -> any().
 register_route(Domain) ->
     case jid:nameprep(Domain) of
-	error ->
-	    erlang:error({invalid_domain, Domain});
-	LDomain ->
-	    Pid = self(),
-	    F = fun() ->
-			mnesia:write(#route_multicast{domain = LDomain,
-						      pid = Pid})
-		end,
-	    mnesia:transaction(F)
+        error ->
+            erlang:error({invalid_domain, Domain});
+        LDomain ->
+            Pid = self(),
+            F = fun() ->
+                        mnesia:write(#route_multicast{
+                                       domain = LDomain,
+                                       pid = Pid
+                                      })
+                end,
+            mnesia:transaction(F)
     end.
 
+
 -spec unregister_route(binary()) -> any().
 unregister_route(Domain) ->
     case jid:nameprep(Domain) of
-	error ->
-	    erlang:error({invalid_domain, Domain});
-	LDomain ->
-	    Pid = self(),
-	    F = fun() ->
-		    case mnesia:select(route_multicast,
-		       [{#route_multicast{pid = Pid, domain = LDomain, _ = '_'},
-			 [],
-			 ['$_']}]) of
-			    [R] -> mnesia:delete_object(R);
-			    _ -> ok
-		    end
-		end,
-	    mnesia:transaction(F)
+        error ->
+            erlang:error({invalid_domain, Domain});
+        LDomain ->
+            Pid = self(),
+            F = fun() ->
+                        case mnesia:select(route_multicast,
+                                           [{#route_multicast{pid = Pid, domain = LDomain, _ = '_'},
+                                             [],
+                                             ['$_']}]) of
+                            [R] -> mnesia:delete_object(R);
+                            _ -> ok
+                        end
+                end,
+            mnesia:transaction(F)
     end.
 
 
@@ -108,6 +121,7 @@ unregister_route(Domain) ->
 %% gen_server callbacks
 %%====================================================================
 
+
 %%--------------------------------------------------------------------
 %% Function: init(Args) -> {ok, State} |
 %%                         {ok, State, Timeout} |
@@ -116,19 +130,21 @@ unregister_route(Domain) ->
 %% Description: Initiates the server
 %%--------------------------------------------------------------------
 init([]) ->
-    ejabberd_mnesia:create(?MODULE, route_multicast,
-			[{ram_copies, [node()]},
-			 {type, bag},
-			 {attributes,
-			  record_info(fields, route_multicast)}]),
+    ejabberd_mnesia:create(?MODULE,
+                           route_multicast,
+                           [{ram_copies, [node()]},
+                            {type, bag},
+                            {attributes,
+                             record_info(fields, route_multicast)}]),
     mnesia:subscribe({table, route_multicast, simple}),
     lists:foreach(
       fun(Pid) ->
-	      erlang:monitor(process, Pid)
+              erlang:monitor(process, Pid)
       end,
       mnesia:dirty_select(route_multicast, [{{route_multicast, '_', '$1'}, [], ['$1']}])),
     {ok, #state{}}.
 
+
 %%--------------------------------------------------------------------
 %% Function: %% handle_call(Request, From, State) -> {reply, Reply, State} |
 %%                                      {reply, Reply, State, Timeout} |
@@ -142,6 +158,7 @@ handle_call(Request, From, State) ->
     ?WARNING_MSG("Unexpected call from ~p: ~p", [From, Request]),
     {noreply, State}.
 
+
 %%--------------------------------------------------------------------
 %% Function: handle_cast(Msg, State) -> {noreply, State} |
 %%                                      {noreply, State, Timeout} |
@@ -152,6 +169,7 @@ handle_cast(Msg, State) ->
     ?WARNING_MSG("Unexpected cast: ~p", [Msg]),
     {noreply, State}.
 
+
 %%--------------------------------------------------------------------
 %% Function: handle_info(Info, State) -> {noreply, State} |
 %%                                       {noreply, State, Timeout} |
@@ -160,35 +178,37 @@ handle_cast(Msg, State) ->
 %%--------------------------------------------------------------------
 handle_info({route_multicast, Domain, Destinations, Packet}, State) ->
     case catch do_route(Domain, Destinations, Packet, false) of
-	{'EXIT', Reason} ->
-	    ?ERROR_MSG("~p~nwhen processing: ~p",
-		       [Reason, {Domain, Destinations, Packet}]);
-	_ ->
-	    ok
+        {'EXIT', Reason} ->
+            ?ERROR_MSG("~p~nwhen processing: ~p",
+                       [Reason, {Domain, Destinations, Packet}]);
+        _ ->
+            ok
     end,
     {noreply, State};
 handle_info({mnesia_table_event, {write, #route_multicast{pid = Pid}, _ActivityId}},
-	    State) ->
+            State) ->
     erlang:monitor(process, Pid),
     {noreply, State};
 handle_info({'DOWN', _Ref, _Type, Pid, _Info}, State) ->
     F = fun() ->
-		Es = mnesia:select(
-		       route_multicast,
-		       [{#route_multicast{pid = Pid, _ = '_'},
-			 [],
-			 ['$_']}]),
-		lists:foreach(
-		  fun(E) ->
-			  mnesia:delete_object(E)
-		  end, Es)
-	end,
+                Es = mnesia:select(
+                       route_multicast,
+                       [{#route_multicast{pid = Pid, _ = '_'},
+                         [],
+                         ['$_']}]),
+                lists:foreach(
+                  fun(E) ->
+                          mnesia:delete_object(E)
+                  end,
+                  Es)
+        end,
     mnesia:transaction(F),
     {noreply, State};
 handle_info(Info, State) ->
     ?WARNING_MSG("Unexpected info: ~p", [Info]),
     {noreply, State}.
 
+
 %%--------------------------------------------------------------------
 %% Function: terminate(Reason, State) -> void()
 %% Description: This function is called by a gen_server when it is about to
@@ -199,6 +219,7 @@ handle_info(Info, State) ->
 terminate(_Reason, _State) ->
     ok.
 
+
 %%--------------------------------------------------------------------
 %% Func: code_change(OldVsn, State, Extra) -> {ok, NewState}
 %% Description: Convert process state when code is changed
@@ -206,25 +227,29 @@ terminate(_Reason, _State) ->
 code_change(_OldVsn, State, _Extra) ->
     {ok, State}.
 
+
 -spec update_to_in_wrapped(stanza(), jid()) -> stanza().
 update_to_in_wrapped(Packet, To) ->
     case Packet of
-	#message{sub_els = [#ps_event{
-	    items = #ps_items{
-		items = [#ps_item{
-		    sub_els = [Internal]
-		} = PSItem]
-	    } = PSItems
-	} = PSEvent]} ->
-	    Internal2 = xmpp:set_to(Internal, To),
-	    PSItem2 = PSItem#ps_item{sub_els = [Internal2]},
-	    PSItems2 = PSItems#ps_items{items = [PSItem2]},
-	    PSEvent2 = PSEvent#ps_event{items = PSItems2},
-	    xmpp:set_to(Packet#message{sub_els = [PSEvent2]}, To);
-	_ ->
-	    xmpp:set_to(Packet, To)
+        #message{
+          sub_els = [#ps_event{
+                       items = #ps_items{
+                                 items = [#ps_item{
+                                            sub_els = [Internal]
+                                           } = PSItem]
+                                } = PSItems
+                      } = PSEvent]
+         } ->
+            Internal2 = xmpp:set_to(Internal, To),
+            PSItem2 = PSItem#ps_item{sub_els = [Internal2]},
+            PSItems2 = PSItems#ps_items{items = [PSItem2]},
+            PSEvent2 = PSEvent#ps_event{items = PSItems2},
+            xmpp:set_to(Packet#message{sub_els = [PSEvent2]}, To);
+        _ ->
+            xmpp:set_to(Packet, To)
     end.
 
+
 %%--------------------------------------------------------------------
 %%% Internal functions
 %%--------------------------------------------------------------------
@@ -233,40 +258,46 @@ update_to_in_wrapped(Packet, To) ->
 -spec do_route(binary(), [jid()], stanza(), boolean()) -> any().
 do_route(Domain, Destinations, Packet, true) ->
     ?DEBUG("Route multicast:~n~ts~nDomain: ~ts~nDestinations: ~ts~n",
-	   [xmpp:pp(Packet), Domain,
-	    str:join([jid:encode(To) || To <- Destinations], <<", ">>)]),
+           [xmpp:pp(Packet),
+            Domain,
+            str:join([ jid:encode(To) || To <- Destinations ], <<", ">>)]),
     lists:foreach(
-	fun(To) ->
-	    Packet2 = update_to_in_wrapped(Packet, To),
-	    ejabberd_router:route(Packet2)
-	end, Destinations);
+      fun(To) ->
+              Packet2 = update_to_in_wrapped(Packet, To),
+              ejabberd_router:route(Packet2)
+      end,
+      Destinations);
 do_route(Domain, Destinations, Packet, false) ->
     ?DEBUG("Route multicast:~n~ts~nDomain: ~ts~nDestinations: ~ts~n",
-	   [xmpp:pp(Packet), Domain,
-	    str:join([jid:encode(To) || To <- Destinations], <<", ">>)]),
+           [xmpp:pp(Packet),
+            Domain,
+            str:join([ jid:encode(To) || To <- Destinations ], <<", ">>)]),
     %% Try to find an appropriate multicast service
     case mnesia:dirty_read(route_multicast, Domain) of
 
-	%% If no multicast service is available in this server, send manually
-	[] -> do_route_normal(Destinations, Packet);
+        %% If no multicast service is available in this server, send manually
+        [] -> do_route_normal(Destinations, Packet);
 
-	%% If some is available, send the packet using multicast service
-	Rs when is_list(Rs) ->
-	    Pid = pick_multicast_pid(Rs),
-	    Pid ! {route_trusted, Destinations, Packet}
+        %% If some is available, send the packet using multicast service
+        Rs when is_list(Rs) ->
+            Pid = pick_multicast_pid(Rs),
+            Pid ! {route_trusted, Destinations, Packet}
     end.
 
+
 -spec pick_multicast_pid([#route_multicast{}]) -> pid().
 pick_multicast_pid(Rs) ->
-    List = case [R || R <- Rs, node(R#route_multicast.pid) == node()] of
-	[] -> Rs;
-	RLocals -> RLocals
-    end,
+    List = case [ R || R <- Rs, node(R#route_multicast.pid) == node() ] of
+               [] -> Rs;
+               RLocals -> RLocals
+           end,
     (hd(List))#route_multicast.pid.
 
+
 -spec do_route_normal([jid()], stanza()) -> any().
 do_route_normal(Destinations, Packet) ->
     lists:foreach(
-	fun(To) ->
-	    ejabberd_router:route(xmpp:set_to(Packet, To))
-	end, Destinations).
+      fun(To) ->
+              ejabberd_router:route(xmpp:set_to(Packet, To))
+      end,
+      Destinations).