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Only allow compression after SASL

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See XEP-0170 for details
Thanks to Vitaly Takmazov for spotting this
This commit is contained in:
Evgeniy Khramtsov 2017-12-13 16:52:44 +03:00
parent 42932fd19e
commit 08e642b988
1 changed files with 6 additions and 4 deletions
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10
src/xmpp_stream_in.erl
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@ -565,8 +565,6 @@ process_element(Pkt, #{stream_state := StateName, lang := Lang} = State) ->
send_pkt(State, #sasl_failure{reason = 'aborted'});
#sasl_success{} ->
State;
#compress{} when StateName == wait_for_sasl_response ->
send_pkt(State, #compress_failure{reason = 'setup-failed'});
#compress{} ->
process_compress(Pkt, State);
#handshake{} when StateName == wait_for_handshake ->
@ -694,7 +692,10 @@ process_stream_established(#{mod := Mod} = State) ->
end.
-spec process_compress(compress(), state()) -> state().
process_compress(#compress{}, #{stream_compressed := true} = State) ->
process_compress(#compress{},
#{stream_compressed := Compressed,
stream_authenticated := Authenticated} = State)
when Compressed or not Authenticated ->
send_pkt(State, #compress_failure{reason = 'setup-failed'});
process_compress(#compress{methods = HisMethods},
#{socket := Socket, sockmod := SockMod, mod := Mod} = State) ->
@ -913,7 +914,8 @@ get_sasl_feature(_) ->
[].
-spec get_compress_feature(state()) -> [compression()].
get_compress_feature(#{stream_compressed := false, mod := Mod} = State) ->
get_compress_feature(#{stream_compressed := false, mod := Mod,
stream_authenticated := true} = State) ->
try Mod:compress_methods(State) of
[] -> [];
Ms -> [#compression{methods = Ms}]