Chapril/xmpp.chapril.org-ejabberd
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Handle some malformed URL requests in ejabberd_http (#2687)

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Badlop 2018-11-16 11:43:11 +01:00
parent 1d80addb7d
commit 06e9d34018
1 changed files with 16 additions and 10 deletions
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26
src/ejabberd_http.erl
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@ -411,11 +411,11 @@ extract_path_query(#state{request_method = Method,
when Method =:= 'GET' orelse
Method =:= 'HEAD' orelse
Method =:= 'DELETE' orelse Method =:= 'OPTIONS' ->
case catch url_decode_q_split(Path) of
{'EXIT', _} -> {State, false};
{NPath, Query} ->
LPath = normalize_path([NPE
|| NPE <- str:tokens(path_decode(NPath), <<"/">>)]),
case catch url_decode_q_split_normalize(Path) of
{'EXIT', Error} ->
?DEBUG("Error decoding URL '~p': ~p", [Path, Error]),
{State, false};
{LPath, Query} ->
LQuery = case catch parse_urlencoded(Query) of
{'EXIT', _Reason} -> [];
LQ -> LQ
@ -429,11 +429,11 @@ extract_path_query(#state{request_method = Method,
sockmod = _SockMod,
socket = _Socket} = State)
when (Method =:= 'POST' orelse Method =:= 'PUT') andalso Len>0 ->
case catch url_decode_q_split(Path) of
{'EXIT', _} -> {State, false};
{NPath, _Query} ->
LPath = normalize_path(
[NPE || NPE <- str:tokens(path_decode(NPath), <<"/">>)]),
case catch url_decode_q_split_normalize(Path) of
{'EXIT', Error} ->
?DEBUG("Error decoding URL '~p': ~p", [Path, Error]),
{State, false};
{LPath, _Query} ->
case Method of
'PUT' ->
{State, {LPath, [], Trail}};
@ -724,6 +724,12 @@ file_format_error(Reason) ->
Text -> Text
end.
url_decode_q_split_normalize(Path) ->
{NPath, Query} = url_decode_q_split(Path),
LPath = normalize_path([NPE
|| NPE <- str:tokens(path_decode(NPath), <<"/">>)]),
{LPath, Query}.
% Code below is taken (with some modifications) from the yaws webserver, which
% is distributed under the following license:
%