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Ignore malformed accept-encoding headers in cowboy_compress_h

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Marcos Ferreira 2019-12-23 22:31:47 -03:00 • committed by Loïc Hoguin
parent aa1a7d09f3
commit 3b85b808ae
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2 changed files with 24 additions and 2 deletions
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8
src/cowboy_compress_h.erl
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@ -71,9 +71,10 @@ early_error(StreamID, Reason, PartialReq, Resp, Opts) ->
%% Internal.
%% Check if the client supports decoding of gzip responses.
%%
%% A malformed accept-encoding header is ignored (no compression).
check_req(Req) ->
%% @todo Probably shouldn't unconditionally crash on failure.
case cowboy_req:parse_header(<<"accept-encoding">>, Req) of
try cowboy_req:parse_header(<<"accept-encoding">>, Req) of
%% Client doesn't support any compression algorithm.
undefined ->
#state{compress=undefined};
@ -87,6 +88,9 @@ check_req(Req) ->
_ ->
#state{compress=gzip}
end
catch
_:_ ->
#state{compress=undefined}
end.
%% Do not compress responses that contain the content-encoding header.