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-rw-r--r--lib/inets/src/http_client/httpc_handler.erl55
-rw-r--r--lib/inets/src/http_lib/http_chunk.erl53
-rw-r--r--lib/inets/test/httpc_SUITE.erl9
3 files changed, 72 insertions, 45 deletions
diff --git a/lib/inets/src/http_client/httpc_handler.erl b/lib/inets/src/http_client/httpc_handler.erl
index f6b13c2998..55794f57dc 100644
--- a/lib/inets/src/http_client/httpc_handler.erl
+++ b/lib/inets/src/http_client/httpc_handler.erl
@@ -33,7 +33,6 @@
%% connect_and_send/2,
send/2,
cancel/3,
- stream/3,
stream_next/1,
info/1
]).
@@ -65,7 +64,7 @@
options, % #options{}
timers = #timers{}, % #timers{}
profile_name, % atom() - id of httpc_manager process.
- once % send | undefined
+ once = inactive % inactive | once
}).
@@ -231,6 +230,8 @@ init([Parent, Request, Options, ProfileName]) ->
ProxyOptions = handle_proxy_options(Request#request.scheme, Options),
Address = handle_proxy(Request#request.address, ProxyOptions),
{ok, State} =
+ %% #state.once should initially be 'inactive' because we
+ %% activate the socket at first regardless of the state.
case {Address /= Request#request.address, Request#request.scheme} of
{true, https} ->
connect_and_send_upgrade_request(Address, Request,
@@ -425,7 +426,9 @@ handle_cast({cancel, RequestId, From},
handle_cast(stream_next, #state{session = Session} = State) ->
activate_once(Session),
- {noreply, State#state{once = once}}.
+ %% Inactivate the #state.once here because we don't want
+ %% next_body_chunk/1 to activate the socket twice.
+ {noreply, State#state{once = inactive}}.
%%--------------------------------------------------------------------
@@ -478,6 +481,41 @@ handle_info({Proto, _Socket, Data},
NewMFA = {Module, whole_body, [NewBody, NewLength]},
{noreply, NewState#state{mfa = NewMFA,
request = NewRequest}};
+ {Module, decode_size,
+ [TotalChunk, HexList,
+ {MaxBodySize, BodySoFar, AccLength, MaxHeaderSize}]}
+ when BodySoFar =/= <<>> ->
+ ?hcrd("data processed - decode_size", []),
+ %% The response body is chunk-encoded. Steal decoded
+ %% chunks as much as possible to stream.
+ {_, Code, _} = StatusLine,
+ {NewBody, NewRequest} = stream(BodySoFar, Request, Code),
+ NewState = next_body_chunk(State),
+ NewMFA = {Module, decode_size,
+ [TotalChunk, HexList,
+ {MaxBodySize, NewBody, AccLength, MaxHeaderSize}]},
+ {noreply, NewState#state{mfa = NewMFA,
+ request = NewRequest}};
+ {Module, decode_data,
+ [ChunkSize, TotalChunk,
+ {MaxBodySize, BodySoFar, AccLength, MaxHeaderSize}]}
+ when TotalChunk =/= <<>> orelse BodySoFar =/= <<>> ->
+ ?hcrd("data processed - decode_data", []),
+ %% The response body is chunk-encoded. Steal decoded
+ %% chunks as much as possible to stream.
+ ChunkSizeToSteal = min(ChunkSize, byte_size(TotalChunk)),
+ <<StolenChunk:ChunkSizeToSteal/binary, NewTotalChunk/binary>> = TotalChunk,
+ StolenBody = <<BodySoFar/binary, StolenChunk/binary>>,
+ NewChunkSize = ChunkSize - ChunkSizeToSteal,
+ {_, Code, _} = StatusLine,
+
+ {NewBody, NewRequest} = stream(StolenBody, Request, Code),
+ NewState = next_body_chunk(State),
+ NewMFA = {Module, decode_data,
+ [NewChunkSize, NewTotalChunk,
+ {MaxBodySize, NewBody, AccLength, MaxHeaderSize}]},
+ {noreply, NewState#state{mfa = NewMFA,
+ request = NewRequest}};
NewMFA ->
?hcrd("data processed - new mfa", []),
activate_once(Session),
@@ -1027,11 +1065,15 @@ handle_http_msg({Version, StatusCode, ReasonPharse, Headers, Body},
status_line = StatusLine,
headers = Headers})
end;
-handle_http_msg({ChunkedHeaders, Body}, #state{headers = Headers} = State) ->
+handle_http_msg({ChunkedHeaders, Body},
+ #state{status_line = {_, Code, _}, headers = Headers} = State) ->
?hcrt("handle_http_msg",
[{chunked_headers, ChunkedHeaders}, {headers, Headers}]),
NewHeaders = http_chunk:handle_headers(Headers, ChunkedHeaders),
- handle_response(State#state{headers = NewHeaders, body = Body});
+ {NewBody, NewRequest} = stream(Body, State#state.request, Code),
+ handle_response(State#state{headers = NewHeaders,
+ body = NewBody,
+ request = NewRequest});
handle_http_msg(Body, #state{status_line = {_,Code, _}} = State) ->
?hcrt("handle_http_msg", [{code, Code}]),
{NewBody, NewRequest} = stream(Body, State#state.request, Code),
@@ -1070,8 +1112,7 @@ handle_http_body(Body, #state{headers = Headers,
"chunked" ->
?hcrt("handle_http_body - chunked", []),
case http_chunk:decode(Body, State#state.max_body_size,
- State#state.max_header_size,
- {Code, Request}) of
+ State#state.max_header_size) of
{Module, Function, Args} ->
?hcrt("handle_http_body - new mfa",
[{module, Module},
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}}.
diff --git a/lib/inets/test/httpc_SUITE.erl b/lib/inets/test/httpc_SUITE.erl
index 350192464e..0c35f284f7 100644
--- a/lib/inets/test/httpc_SUITE.erl
+++ b/lib/inets/test/httpc_SUITE.erl
@@ -1693,6 +1693,15 @@ receive_streamed_body(RequestId, Body, Pid) ->
ct:print("~p:receive_streamed_body -> requested next stream ~n", [?MODULE]),
receive
{http, {RequestId, stream, BinBodyPart}} ->
+ %% Make sure the httpc hasn't sent us the next 'stream'
+ %% without our request.
+ receive
+ {http, {RequestId, stream, _}} = Msg ->
+ ct:fail({unexpected_flood_of_stream, Msg})
+ after
+ 1000 ->
+ ok
+ end,
receive_streamed_body(RequestId,
<<Body/binary, BinBodyPart/binary>>,
Pid);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 15:48:09 +0000