diff options
Diffstat (limited to 'lib/inets/src/http_lib/http_chunk.erl')
| -rw-r--r-- | lib/inets/src/http_lib/http_chunk.erl | 53 |
1 files changed, 15 insertions, 38 deletions
diff --git a/lib/inets/src/http_lib/http_chunk.erl b/lib/inets/src/http_lib/http_chunk.erl index 57647438e9..24c939e80c 100644 --- a/lib/inets/src/http_lib/http_chunk.erl +++ b/lib/inets/src/http_lib/http_chunk.erl @@ -24,7 +24,7 @@ -include("http_internal.hrl"). %% API --export([decode/3, decode/4, encode/1, encode_last/0, handle_headers/2]). +-export([decode/3, encode/1, encode_last/0, handle_headers/2]). %% Callback API - used for example if the chunkedbody is received a %% little at a time on a socket. -export([decode_size/1, ignore_extensions/1, decode_data/1, decode_trailer/1]). @@ -34,20 +34,14 @@ %%% API %%%========================================================================= %%------------------------------------------------------------------------- -%% decode(ChunkedBody, MaxBodySize, MaxHeaderSize, <Stream>) -> +%% decode(ChunkedBody, MaxBodySize, MaxHeaderSize) -> %% {ok, {Headers, Body}} | {Module, Function, Args} %% %% Headers = ["Header:Value"] %% ChunkedBody = binary() %% MaxBodySize = integer() %% MaxHeaderSize = integer() -%% Stream = {Code, Request} - if Request#request.stream =/= none -%% and Code == 200 the side effect of sending each decode chunk to the -%% client/file before the whole body is received will take place. %% -%% Note: decode/4 should only be used from httpc_handler module. -%% Otherwhise use the side effect free decode/3. -%% %% Description: Decodes a body encoded by the chunked transfer %% encoding. If the ChunkedBody is not compleate it returns {Module, %% Function, Args} so that decoding can be continued when more of the @@ -61,12 +55,9 @@ %% the next pass in the loop. %%------------------------------------------------------------------------- decode(ChunkedBody, MaxBodySize, MaxHeaderSize) -> - decode(ChunkedBody, MaxBodySize, MaxHeaderSize, false). - -decode(ChunkedBody, MaxBodySize, MaxHeaderSize, Stream) -> %% Note decode_size will call decode_data. - decode_size([ChunkedBody, <<>>, [], - {MaxBodySize, <<>>, 0, MaxHeaderSize, Stream}]). + decode_size([ChunkedBody, <<>>, [], + {MaxBodySize, <<>>, 0, MaxHeaderSize}]). %%------------------------------------------------------------------------- %% encode(Chunk) -> EncodedChunk @@ -150,7 +141,7 @@ decode_size(<<>>, HexList, Info) -> decode_size(Data = <<?CR, ?LF, ChunkRest/binary>>, HexList, {MaxBodySize, Body, AccLength, - MaxHeaderSize, Stream}) -> + MaxHeaderSize}) -> ChunkSize = http_util:hexlist_to_integer(lists:reverse(HexList)), case ChunkSize of 0 -> % Last chunk, there was no data @@ -164,7 +155,7 @@ decode_size(Data = <<?CR, ?LF, ChunkRest/binary>>, HexList, %% to this function comes in. decode_data(ChunkSize, ChunkRest, {MaxBodySize, Body, ChunkSize + AccLength , - MaxHeaderSize, Stream}) + MaxHeaderSize}) end; decode_size(<<";", Rest/binary>>, HexList, Info) -> %% Note ignore_extensions will call decode_size/1 again when @@ -189,50 +180,42 @@ ignore_extensions(<<_Octet, Rest/binary>>, NextFunction) -> ignore_extensions(Rest, NextFunction). decode_data(ChunkSize, TotalChunk, - Info = {MaxBodySize, BodySoFar, AccLength, MaxHeaderSize, Stream}) + Info = {MaxBodySize, BodySoFar, AccLength, MaxHeaderSize}) when ChunkSize =< size(TotalChunk) -> case TotalChunk of %% Last chunk <<Data:ChunkSize/binary, ?CR, ?LF, "0", ";">> -> %% Note ignore_extensions will call decode_trailer/1 %% once it ignored all extensions. - {NewBody, _} = - stream(<<BodySoFar/binary, Data/binary>>, Stream), {?MODULE, ignore_extensions, [<<>>, {?MODULE, decode_trailer, [<<>>, [],[], MaxHeaderSize, - NewBody, + <<BodySoFar/binary, Data/binary>>, integer_to_list(AccLength)]}]}; <<Data:ChunkSize/binary, ?CR, ?LF, "0", ";", Rest/binary>> -> %% Note ignore_extensions will call decode_trailer/1 %% once it ignored all extensions. - {NewBody, _} = stream(<<BodySoFar/binary, Data/binary>>, Stream), ignore_extensions(Rest, {?MODULE, decode_trailer, [<<>>, [],[], MaxHeaderSize, - NewBody, + <<BodySoFar/binary, Data/binary>>, integer_to_list(AccLength)]}); <<Data:ChunkSize/binary, ?CR, ?LF, "0", ?CR, ?LF>> -> - {NewBody, _} = stream(<<BodySoFar/binary, Data/binary>>, Stream), {?MODULE, decode_trailer, [<<?CR, ?LF>>, [],[], MaxHeaderSize, - NewBody, + <<BodySoFar/binary, Data/binary>>, integer_to_list(AccLength)]}; <<Data:ChunkSize/binary, ?CR, ?LF, "0", ?CR, ?LF, Rest/binary>> -> - {NewBody,_}= stream(<<BodySoFar/binary, Data/binary>>, Stream), decode_trailer(<<?CR, ?LF, Rest/binary>>, [],[], MaxHeaderSize, - NewBody, + <<BodySoFar/binary, Data/binary>>, integer_to_list(AccLength)); %% There are more chunks, so here we go agin... <<Data:ChunkSize/binary, ?CR, ?LF>> -> - {NewBody, NewStream} = - stream(<<BodySoFar/binary, Data/binary>>, Stream), - {?MODULE, decode_size, [<<>>, [], {MaxBodySize, NewBody, AccLength, MaxHeaderSize, NewStream}]}; + NewBody = <<BodySoFar/binary, Data/binary>>, + {?MODULE, decode_size, [<<>>, [], {MaxBodySize, NewBody, AccLength, MaxHeaderSize}]}; <<Data:ChunkSize/binary, ?CR, ?LF, Rest/binary>> when (AccLength < MaxBodySize) or (MaxBodySize == nolimit) -> - {NewBody, NewStream} = - stream(<<BodySoFar/binary, Data/binary>>, Stream), decode_size(Rest, [], - {MaxBodySize, NewBody, - AccLength, MaxHeaderSize, NewStream}); + {MaxBodySize, <<BodySoFar/binary, Data/binary>>, + AccLength, MaxHeaderSize}); <<_:ChunkSize/binary, ?CR, ?LF, _/binary>> -> throw({error, body_too_big}); _ -> @@ -286,9 +269,3 @@ decode_trailer(<<Octet, Rest/binary>>, Header, Headers, MaxHeaderSize, Body, BodyLength) -> decode_trailer(Rest, [Octet | Header], Headers, MaxHeaderSize, Body, BodyLength). - -stream(BodyPart, false) -> - {BodyPart, false}; -stream(BodyPart, {Code, Request}) -> - {NewBody, NewRequest} = httpc_handler:stream(BodyPart, Request, Code), - {NewBody, {Code, NewRequest}}. |