mirror of
https://github.com/processone/ejabberd
synced 2025-10-03 09:49:18 +02:00
Prevent loops in xml_compress:decode with corrupted data
This commit is contained in:
Pawel Chmielowski
parent
f594620c68
commit
10f6723f00
2 changed files with 73 additions and 63 deletions
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@ -480,8 +480,11 @@ encode(PNs, Ns, Name, Attrs, Children, J1, J2, J1L, J2L, Pfx) ->
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decode(<<$<, _/binary>> = Data, _J1, _J2) ->
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fxml_stream:parse_element(Data);
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decode(<<1:8, Rest/binary>>, J1, J2) ->
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{El, _} = decode(Rest, <<"jabber:client">>, J1, J2),
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El.
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try decode(Rest, <<"jabber:client">>, J1, J2, false) of
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{El, _} -> El
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catch throw:loop_detected ->
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{error, {loop_detected, <<"Compressed data corrupted">>}}
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end.
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decode_string(Data) ->
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case Data of
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@ -489,35 +492,37 @@ decode_string(Data) ->
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{Str, Rest};
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<<1:2, L1:6, 0:2, L2:6, Rest/binary>> ->
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L = L2*64 + L1,
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<<Str:L/binary, Rest2/binary>> = Rest,
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<<Str:L/binary, Rest2/binary>> = Rest,
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{Str, Rest2};
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<<1:2, L1:6, 1:2, L2:6, L3:8, Rest/binary>> ->
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L = (L3*64 + L2)*64 + L1,
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<<Str:L/binary, Rest2/binary>> = Rest,
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<<Str:L/binary, Rest2/binary>> = Rest,
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{Str, Rest2}
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end.
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decode_child(<<1:8, Rest/binary>>, _PNs, _J1, _J2) ->
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decode_child(<<1:8, Rest/binary>>, _PNs, _J1, _J2, _) ->
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{Text, Rest2} = decode_string(Rest),
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{{xmlcdata, Text}, Rest2};
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decode_child(<<2:8, Rest/binary>>, PNs, J1, J2) ->
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decode_child(<<2:8, Rest/binary>>, PNs, J1, J2, _) ->
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{Name, Rest2} = decode_string(Rest),
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{Attrs, Rest3} = decode_attrs(Rest2),
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{Children, Rest4} = decode_children(Rest3, PNs, J1, J2),
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{{xmlel, Name, Attrs, Children}, Rest4};
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decode_child(<<3:8, Rest/binary>>, PNs, J1, J2) ->
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decode_child(<<3:8, Rest/binary>>, PNs, J1, J2, _) ->
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{Ns, Rest2} = decode_string(Rest),
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{Name, Rest3} = decode_string(Rest2),
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{Attrs, Rest4} = decode_attrs(Rest3),
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{Children, Rest5} = decode_children(Rest4, Ns, J1, J2),
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{{xmlel, Name, add_ns(PNs, Ns, Attrs), Children}, Rest5};
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decode_child(<<4:8, Rest/binary>>, _PNs, _J1, _J2) ->
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decode_child(<<4:8, Rest/binary>>, _PNs, _J1, _J2, _) ->
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{stop, Rest};
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decode_child(Other, PNs, J1, J2) ->
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decode(Other, PNs, J1, J2).
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decode_child(_Other, _PNs, _J1, _J2, true) ->
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throw(loop_detected);
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decode_child(Other, PNs, J1, J2, _) ->
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decode(Other, PNs, J1, J2, true).
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decode_children(Data, PNs, J1, J2) ->
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prefix_map(fun(Data2) -> decode(Data2, PNs, J1, J2) end, Data).
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prefix_map(fun(Data2) -> decode(Data2, PNs, J1, J2, false) end, Data).
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decode_attr(<<1:8, Rest/binary>>) ->
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{Name, Rest2} = decode_string(Rest),
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@ -545,7 +550,7 @@ add_ns(Ns, Ns, Attrs) ->
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add_ns(_, Ns, Attrs) ->
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[{<<"xmlns">>, Ns} | Attrs].
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decode(<<5:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<5:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"eu.siacs.conversations.axolotl">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -563,12 +568,12 @@ decode(<<5:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"key">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<12:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<12:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"eu.siacs.conversations.axolotl">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"encrypted">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<13:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<13:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"eu.siacs.conversations.axolotl">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -581,17 +586,17 @@ decode(<<13:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"header">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<14:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<14:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"eu.siacs.conversations.axolotl">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"iv">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<15:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<15:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"eu.siacs.conversations.axolotl">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"payload">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<6:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<6:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"jabber:client">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -636,7 +641,7 @@ decode(<<6:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"message">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<8:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<8:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"jabber:client">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = prefix_map(fun (<<9:8, Rest5/binary>>) ->
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@ -650,25 +655,25 @@ decode(<<8:8, Rest/binary>>, PNs, J1, J2) ->
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32,104,116,116,112,115,58,47,47,99,111,110,118,101,114,115,
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97,116,105,111,110,115,46,105,109,47,111,109,101,109,111>>}, Rest5};
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(Other) ->
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decode_child(Other, Ns, J1, J2)
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decode_child(Other, Ns, J1, J2, false)
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end, Rest2),
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{{xmlel, <<"body">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<31:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<31:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"jabber:client">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"subject">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<32:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<32:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"jabber:client">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"thread">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<7:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<7:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:hints">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"store">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<10:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<10:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:sid:0">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -681,7 +686,7 @@ decode(<<10:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"origin-id">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<22:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<22:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:sid:0">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -697,12 +702,12 @@ decode(<<22:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"stanza-id">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<11:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<11:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:chat-markers:0">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"markable">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<20:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<20:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:chat-markers:0">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -724,7 +729,7 @@ decode(<<20:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"displayed">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<24:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<24:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:chat-markers:0">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -737,7 +742,7 @@ decode(<<24:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"received">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<16:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<16:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:eme:0">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -757,7 +762,7 @@ decode(<<16:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"encryption">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<17:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<17:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:delay">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -775,7 +780,7 @@ decode(<<17:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"delay">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<18:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<18:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"http://jabber.org/protocol/address">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -796,12 +801,12 @@ decode(<<18:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"address">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<19:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<19:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"http://jabber.org/protocol/address">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"addresses">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<21:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<21:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:mam:tmp">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -817,12 +822,12 @@ decode(<<21:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"archived">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<23:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<23:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:receipts">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"request">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<25:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<25:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"urn:xmpp:receipts">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -835,17 +840,17 @@ decode(<<25:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"received">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<26:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<26:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"http://jabber.org/protocol/chatstates">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"active">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<39:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<39:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"http://jabber.org/protocol/chatstates">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"composing">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<27:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<27:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"http://jabber.org/protocol/muc#user">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -861,17 +866,17 @@ decode(<<27:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"invite">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<28:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<28:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"http://jabber.org/protocol/muc#user">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"reason">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<29:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<29:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"http://jabber.org/protocol/muc#user">>,
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{Attrs, Rest2} = decode_attrs(Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"x">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<30:8, Rest/binary>>, PNs, J1, J2) ->
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decode(<<30:8, Rest/binary>>, PNs, J1, J2, _) ->
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Ns = <<"jabber:x:conference">>,
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{Attrs, Rest2} = prefix_map(fun
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(<<3:8, Rest3/binary>>) ->
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@ -886,12 +891,12 @@ decode(<<30:8, Rest/binary>>, PNs, J1, J2) ->
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end, Rest),
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{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
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{{xmlel, <<"x">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
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decode(<<33:8, Rest/binary>>, PNs, J1, J2) ->
|
||||
decode(<<33:8, Rest/binary>>, PNs, J1, J2, _) ->
|
||||
Ns = <<"http://jabber.org/protocol/pubsub#event">>,
|
||||
{Attrs, Rest2} = decode_attrs(Rest),
|
||||
{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
|
||||
{{xmlel, <<"event">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
|
||||
decode(<<34:8, Rest/binary>>, PNs, J1, J2) ->
|
||||
decode(<<34:8, Rest/binary>>, PNs, J1, J2, _) ->
|
||||
Ns = <<"http://jabber.org/protocol/pubsub#event">>,
|
||||
{Attrs, Rest2} = prefix_map(fun
|
||||
(<<3:8, Rest3/binary>>) ->
|
||||
|
|
@ -904,7 +909,7 @@ decode(<<34:8, Rest/binary>>, PNs, J1, J2) ->
|
|||
end, Rest),
|
||||
{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
|
||||
{{xmlel, <<"item">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
|
||||
decode(<<35:8, Rest/binary>>, PNs, J1, J2) ->
|
||||
decode(<<35:8, Rest/binary>>, PNs, J1, J2, _) ->
|
||||
Ns = <<"http://jabber.org/protocol/pubsub#event">>,
|
||||
{Attrs, Rest2} = prefix_map(fun
|
||||
(<<3:8, Rest3/binary>>) ->
|
||||
|
|
@ -919,7 +924,7 @@ decode(<<35:8, Rest/binary>>, PNs, J1, J2) ->
|
|||
end, Rest),
|
||||
{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
|
||||
{{xmlel, <<"items">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
|
||||
decode(<<36:8, Rest/binary>>, PNs, J1, J2) ->
|
||||
decode(<<36:8, Rest/binary>>, PNs, J1, J2, _) ->
|
||||
Ns = <<"p1:push:custom">>,
|
||||
{Attrs, Rest2} = prefix_map(fun
|
||||
(<<3:8, Rest3/binary>>) ->
|
||||
|
|
@ -935,12 +940,12 @@ decode(<<36:8, Rest/binary>>, PNs, J1, J2) ->
|
|||
end, Rest),
|
||||
{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
|
||||
{{xmlel, <<"x">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
|
||||
decode(<<37:8, Rest/binary>>, PNs, J1, J2) ->
|
||||
decode(<<37:8, Rest/binary>>, PNs, J1, J2, _) ->
|
||||
Ns = <<"p1:pushed">>,
|
||||
{Attrs, Rest2} = decode_attrs(Rest),
|
||||
{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
|
||||
{{xmlel, <<"x">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
|
||||
decode(<<38:8, Rest/binary>>, PNs, J1, J2) ->
|
||||
decode(<<38:8, Rest/binary>>, PNs, J1, J2, _) ->
|
||||
Ns = <<"urn:xmpp:message-correct:0">>,
|
||||
{Attrs, Rest2} = prefix_map(fun
|
||||
(<<3:8, Rest3/binary>>) ->
|
||||
|
|
@ -953,6 +958,6 @@ decode(<<38:8, Rest/binary>>, PNs, J1, J2) ->
|
|||
end, Rest),
|
||||
{Children, Rest6} = decode_children(Rest2, Ns, J1, J2),
|
||||
{{xmlel, <<"replace">>, add_ns(PNs, Ns, Attrs), Children}, Rest6};
|
||||
decode(Other, PNs, J1, J2) ->
|
||||
decode_child(Other, PNs, J1, J2).
|
||||
decode(Other, PNs, J1, J2, Loop) ->
|
||||
decode_child(Other, PNs, J1, J2, Loop).
|
||||
|
||||
|
|
|
|||
|
|
@ -93,41 +93,46 @@ gen_decode(Dev, Data, VerId) ->
|
|||
io:format(Dev, "decode(<<$<, _/binary>> = Data, _J1, _J2) ->~n"
|
||||
" fxml_stream:parse_element(Data);~n"
|
||||
"decode(<<~s, Rest/binary>>, J1, J2) ->~n"
|
||||
" {El, _} = decode(Rest, <<\"jabber:client\">>, J1, J2),~n"
|
||||
" El.~n~n", [VerId]),
|
||||
" try decode(Rest, <<\"jabber:client\">>, J1, J2, false) of~n"
|
||||
" {El, _} -> El~n"
|
||||
" catch throw:loop_detected ->~n"
|
||||
" {error, {loop_detected, <<\"Compressed data corrupted\">>}}~n"
|
||||
" end.~n~n", [VerId]),
|
||||
io:format(Dev, "decode_string(Data) ->~n"
|
||||
" case Data of~n"
|
||||
" <<0:2, L:6, Str:L/binary, Rest/binary>> ->~n"
|
||||
" {Str, Rest};~n"
|
||||
" <<1:2, L1:6, 0:2, L2:6, Rest/binary>> ->~n"
|
||||
" L = L2*64 + L1,~n"
|
||||
" <<Str:L/binary, Rest2/binary>> = Rest,~n"
|
||||
" <<Str:L/binary, Rest2/binary>> = Rest,~n"
|
||||
" {Str, Rest2};~n"
|
||||
" <<1:2, L1:6, 1:2, L2:6, L3:8, Rest/binary>> ->~n"
|
||||
" L = (L3*64 + L2)*64 + L1,~n"
|
||||
" <<Str:L/binary, Rest2/binary>> = Rest,~n"
|
||||
" <<Str:L/binary, Rest2/binary>> = Rest,~n"
|
||||
" {Str, Rest2}~n"
|
||||
" end.~n~n", []),
|
||||
io:format(Dev, "decode_child(<<1:8, Rest/binary>>, _PNs, _J1, _J2) ->~n"
|
||||
io:format(Dev, "decode_child(<<1:8, Rest/binary>>, _PNs, _J1, _J2, _) ->~n"
|
||||
" {Text, Rest2} = decode_string(Rest),~n"
|
||||
" {{xmlcdata, Text}, Rest2};~n", []),
|
||||
io:format(Dev, "decode_child(<<2:8, Rest/binary>>, PNs, J1, J2) ->~n"
|
||||
io:format(Dev, "decode_child(<<2:8, Rest/binary>>, PNs, J1, J2, _) ->~n"
|
||||
" {Name, Rest2} = decode_string(Rest),~n"
|
||||
" {Attrs, Rest3} = decode_attrs(Rest2),~n"
|
||||
" {Children, Rest4} = decode_children(Rest3, PNs, J1, J2),~n"
|
||||
" {{xmlel, Name, Attrs, Children}, Rest4};~n", []),
|
||||
io:format(Dev, "decode_child(<<3:8, Rest/binary>>, PNs, J1, J2) ->~n"
|
||||
io:format(Dev, "decode_child(<<3:8, Rest/binary>>, PNs, J1, J2, _) ->~n"
|
||||
" {Ns, Rest2} = decode_string(Rest),~n"
|
||||
" {Name, Rest3} = decode_string(Rest2),~n"
|
||||
" {Attrs, Rest4} = decode_attrs(Rest3),~n"
|
||||
" {Children, Rest5} = decode_children(Rest4, Ns, J1, J2),~n"
|
||||
" {{xmlel, Name, add_ns(PNs, Ns, Attrs), Children}, Rest5};~n", []),
|
||||
io:format(Dev, "decode_child(<<4:8, Rest/binary>>, _PNs, _J1, _J2) ->~n"
|
||||
io:format(Dev, "decode_child(<<4:8, Rest/binary>>, _PNs, _J1, _J2, _) ->~n"
|
||||
" {stop, Rest};~n", []),
|
||||
io:format(Dev, "decode_child(Other, PNs, J1, J2) ->~n"
|
||||
" decode(Other, PNs, J1, J2).~n~n", []),
|
||||
io:format(Dev, "decode_child(_Other, _PNs, _J1, _J2, true) ->~n"
|
||||
" throw(loop_detected);~n", []),
|
||||
io:format(Dev, "decode_child(Other, PNs, J1, J2, _) ->~n"
|
||||
" decode(Other, PNs, J1, J2, true).~n~n", []),
|
||||
io:format(Dev, "decode_children(Data, PNs, J1, J2) ->~n"
|
||||
" prefix_map(fun(Data2) -> decode(Data2, PNs, J1, J2) end, Data).~n~n", []),
|
||||
" prefix_map(fun(Data2) -> decode(Data2, PNs, J1, J2, false) end, Data).~n~n", []),
|
||||
io:format(Dev, "decode_attr(<<1:8, Rest/binary>>) ->~n"
|
||||
" {Name, Rest2} = decode_string(Rest),~n"
|
||||
" {Val, Rest3} = decode_string(Rest2),~n"
|
||||
|
|
@ -153,7 +158,7 @@ gen_decode(Dev, Data, VerId) ->
|
|||
fun({Ns, Els}) ->
|
||||
lists:foreach(
|
||||
fun({Name, Id, Attrs, Text}) ->
|
||||
io:format(Dev, "decode(<<~s, Rest/binary>>, PNs, J1, J2) ->~n"
|
||||
io:format(Dev, "decode(<<~s, Rest/binary>>, PNs, J1, J2, _) ->~n"
|
||||
" Ns = ~p,~n", [Id, Ns]),
|
||||
case Attrs of
|
||||
[] ->
|
||||
|
|
@ -209,14 +214,14 @@ gen_decode(Dev, Data, VerId) ->
|
|||
end, Text),
|
||||
|
||||
io:format(Dev, " (Other) ->~n"
|
||||
" decode_child(Other, Ns, J1, J2)~n"
|
||||
" decode_child(Other, Ns, J1, J2, false)~n"
|
||||
" end, Rest2),~n", [])
|
||||
end,
|
||||
io:format(Dev, " {{xmlel, ~p, add_ns(PNs, Ns, Attrs), Children}, Rest6};~n", [Name])
|
||||
end, Els)
|
||||
end, Data),
|
||||
io:format(Dev, "decode(Other, PNs, J1, J2) ->~n"
|
||||
" decode_child(Other, PNs, J1, J2).~n~n", []).
|
||||
io:format(Dev, "decode(Other, PNs, J1, J2, Loop) ->~n"
|
||||
" decode_child(Other, PNs, J1, J2, Loop).~n~n", []).
|
||||
|
||||
|
||||
gen_encode(Dev, Data, VerId) ->
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue