diff options
Diffstat (limited to 'lib/inets/src/http_server/httpd_request_handler.erl')
| -rw-r--r-- | lib/inets/src/http_server/httpd_request_handler.erl | 162 |
1 files changed, 133 insertions, 29 deletions
diff --git a/lib/inets/src/http_server/httpd_request_handler.erl b/lib/inets/src/http_server/httpd_request_handler.erl index 538d52b98d..bd4fdd3832 100644 --- a/lib/inets/src/http_server/httpd_request_handler.erl +++ b/lib/inets/src/http_server/httpd_request_handler.erl @@ -49,7 +49,8 @@ headers, %% #http_request_h{} body, %% binary() data, %% The total data received in bits, checked after 10s - byte_limit %% Bit limit per second before kick out + byte_limit, %% Bit limit per second before kick out + chunk }). %%==================================================================== @@ -124,7 +125,8 @@ continue_init(Manager, ConfigDB, SocketType, Socket, TimeOut) -> NrOfRequest = max_keep_alive_request(ConfigDB), MaxContentLen = max_content_length(ConfigDB), Customize = customize(ConfigDB), - + MaxChunk = max_client_body_chunk(ConfigDB), + {_, Status} = httpd_manager:new_connection(Manager), MFA = {httpd_request, parse, [[{max_uri, MaxURISize}, {max_header, MaxHeaderSize}, @@ -139,7 +141,8 @@ continue_init(Manager, ConfigDB, SocketType, Socket, TimeOut) -> status = Status, timeout = TimeOut, max_keep_alive_request = NrOfRequest, - mfa = MFA}, + mfa = MFA, + chunk = chunk_start(MaxChunk)}, http_transport:setopts(SocketType, Socket, [binary, {packet, 0}, {active, once}]), @@ -194,6 +197,7 @@ handle_cast(Msg, #state{mod = ModData} = State) -> %%-------------------------------------------------------------------- handle_info({Proto, Socket, Data}, #state{mfa = {Module, Function, Args}, + chunk = {ChunkState, _}, mod = #mod{socket_type = SockType, socket = Socket} = ModData} = State) when (((Proto =:= tcp) orelse @@ -207,7 +211,8 @@ handle_info({Proto, Socket, Data}, _ -> State#state.data + byte_size(Data) end, - case PROCESSED of + + case PROCESSED of {ok, Result} -> NewState = case NewDataSize of undefined -> @@ -215,7 +220,7 @@ handle_info({Proto, Socket, Data}, _ -> set_new_data_size(cancel_request_timeout(State), NewDataSize) end, - handle_http_msg(Result, NewState); + handle_msg(Result, NewState); {error, {size_error, MaxSize, ErrCode, ErrStr}, Version} -> NewModData = ModData#mod{http_version = Version}, httpd_response:send_status(NewModData, ErrCode, ErrStr), @@ -224,7 +229,10 @@ handle_info({Proto, Socket, Data}, error_log(Reason, NewModData), {stop, normal, State#state{response_sent = true, mod = NewModData}}; - + + {http_chunk = Module, Function, Args} when ChunkState =/= undefined -> + NewState = handle_chunk(Module, Function, Args, State), + {noreply, NewState}; NewMFA -> http_transport:setopts(SockType, Socket, [{active, once}]), case NewDataSize of @@ -349,6 +357,34 @@ await_socket_ownership_transfer(AcceptTimeout) -> exit(accept_socket_timeout) end. + +%%% Internal chunking of client body +handle_msg({{continue, Chunk}, Module, Function, Args}, #state{chunk = {_, CbState}} = State) -> + handle_internal_chunk(State#state{chunk = {continue, CbState}, + body = Chunk}, Module, Function, Args); +handle_msg({continue, Module, Function, Args}, #state{mod = ModData} = State) -> + http_transport:setopts(ModData#mod.socket_type, + ModData#mod.socket, + [{active, once}]), + {noreply, State#state{mfa = {Module, Function, Args}}}; +handle_msg({last, Body}, #state{headers = Headers, chunk = {_, CbState}} = State) -> + NewHeaders = Headers#http_request_h{'content-length' = integer_to_list(size(Body))}, + handle_response(State#state{chunk = {last, CbState}, + headers = NewHeaders, + body = Body}); +%%% Last data chunked by client +handle_msg({ChunkedHeaders, Body}, #state{headers = Headers , chunk = {ChunkState, CbState}} = State) when ChunkState =/= undefined -> + NewHeaders = http_chunk:handle_headers(Headers, ChunkedHeaders), + handle_response(State#state{chunk = {last, CbState}, + headers = NewHeaders, + body = Body}); +handle_msg({ChunkedHeaders, Body}, #state{headers = Headers , chunk = {undefined, _}} = State) -> + NewHeaders = http_chunk:handle_headers(Headers, ChunkedHeaders), + handle_response(State#state{headers = NewHeaders, + body = Body}); +handle_msg(Result, State) -> + handle_http_msg(Result, State). + handle_http_msg({_, _, Version, {_, _}, _}, #state{status = busy, mod = ModData} = State) -> handle_manager_busy(State#state{mod = @@ -405,10 +441,6 @@ handle_http_msg({Method, Uri, Version, {RecordHeaders, Headers}, Body}, error_log(Reason, ModData), {stop, normal, State#state{response_sent = true}} end; -handle_http_msg({ChunkedHeaders, Body}, - State = #state{headers = Headers}) -> - NewHeaders = http_chunk:handle_headers(Headers, ChunkedHeaders), - handle_response(State#state{headers = NewHeaders, body = Body}); handle_http_msg(Body, State) -> handle_response(State#state{body = Body}). @@ -443,22 +475,25 @@ handle_body(#state{mod = #mod{config_db = ConfigDB}} = State) -> end. -handle_body(#state{headers = Headers, body = Body, mod = ModData} = State, +handle_body(#state{headers = Headers, body = Body, + chunk = {ChunkState, CbState}, mod = #mod{config_db = ConfigDB} = ModData} = State, MaxHeaderSize, MaxBodySize) -> + MaxChunk = max_client_body_chunk(ConfigDB), case Headers#http_request_h.'transfer-encoding' of "chunked" -> try http_chunk:decode(Body, MaxBodySize, MaxHeaderSize) of - {Module, Function, Args} -> + {Module, Function, Args} -> http_transport:setopts(ModData#mod.socket_type, ModData#mod.socket, [{active, once}]), {noreply, State#state{mfa = - {Module, Function, Args}}}; - {ok, {ChunkedHeaders, NewBody}} -> - NewHeaders = - http_chunk:handle_headers(Headers, ChunkedHeaders), - handle_response(State#state{headers = NewHeaders, - body = NewBody}) + {Module, Function, Args}, + chunk = chunk_start(MaxChunk)}}; + {ok, {ChunkedHeaders, NewBody}} -> + NewHeaders = http_chunk:handle_headers(Headers, ChunkedHeaders), + handle_response(State#state{headers = NewHeaders, + body = NewBody, + chunk = chunk_finish(ChunkState, CbState, MaxChunk)}) catch throw:Error -> httpd_response:send_status(ModData, 400, @@ -476,21 +511,25 @@ handle_body(#state{headers = Headers, body = Body, mod = ModData} = State, error_log(Reason, ModData), {stop, normal, State#state{response_sent = true}}; _ -> - Length = list_to_integer(Headers#http_request_h.'content-length'), + Length = list_to_integer(Headers#http_request_h.'content-length'), + MaxChunk = max_client_body_chunk(ConfigDB), case ((Length =< MaxBodySize) or (MaxBodySize == nolimit)) of true -> - case httpd_request:whole_body(Body, Length) of - {Module, Function, Args} -> - http_transport:setopts(ModData#mod.socket_type, + case httpd_request:body_chunk_first(Body, Length, MaxChunk) of + {ok, {continue, Module, Function, Args}} -> + http_transport:setopts(ModData#mod.socket_type, ModData#mod.socket, [{active, once}]), {noreply, State#state{mfa = {Module, Function, Args}}}; - - {ok, NewBody} -> - handle_response( - State#state{headers = Headers, - body = NewBody}) + {ok, {{continue, Chunk}, Module, Function, Args}} -> + handle_internal_chunk(State#state{chunk = chunk_start(MaxChunk), + body = Chunk}, Module, Function, Args); + {ok, NewBody} -> + handle_response(State#state{chunk = chunk_finish(ChunkState, + CbState, MaxChunk), + headers = Headers, + body = NewBody}) end; false -> httpd_response:send_status(ModData, 413, "Body too long"), @@ -550,15 +589,61 @@ expect(Headers, _, ConfigDB) -> end end. +handle_chunk(http_chunk = Module, decode_data = Function, + [ChunkSize, TotalChunk, {MaxBodySize, BodySoFar, _AccLength, MaxHeaderSize}], + #state{chunk = {_, CbState}, + mod = #mod{socket_type = SockType, + socket = Socket} = ModData} = State) -> + {continue, NewCbState} = httpd_response:handle_continuation(ModData#mod{entity_body = + {continue, BodySoFar, CbState}}), + http_transport:setopts(SockType, Socket, [{active, once}]), + State#state{chunk = {continue, NewCbState}, mfa = {Module, Function, [ChunkSize, TotalChunk, {MaxBodySize, <<>>, 0, MaxHeaderSize}]}}; + +handle_chunk(http_chunk = Module, decode_size = Function, + [Data, HexList, _AccSize, {MaxBodySize, BodySoFar, _AccLength, MaxHeaderSize}], + #state{chunk = {_, CbState}, + mod = #mod{socket_type = SockType, + socket = Socket} = ModData} = State) -> + {continue, NewCbState} = httpd_response:handle_continuation(ModData#mod{entity_body = {continue, BodySoFar, CbState}}), + http_transport:setopts(SockType, Socket, [{active, once}]), + State#state{chunk = {continue, NewCbState}, mfa = {Module, Function, [Data, HexList, 0, {MaxBodySize, <<>>, 0, MaxHeaderSize}]}}; +handle_chunk(Module, Function, Args, #state{mod = #mod{socket_type = SockType, + socket = Socket}} = State) -> + http_transport:setopts(SockType, Socket, [{active, once}]), + State#state{mfa = {Module, Function, Args}}. + +handle_internal_chunk(#state{chunk = {ChunkState, CbState}, body = Chunk, + mod = #mod{socket_type = SockType, + socket = Socket} = ModData} = State, Module, Function, Args)-> + Bodychunk = body_chunk(ChunkState, CbState, Chunk), + {continue, NewCbState} = httpd_response:handle_continuation(ModData#mod{entity_body = Bodychunk}), + case Args of + [<<>> | _] -> + http_transport:setopts(SockType, Socket, [{active, once}]), + {noreply, State#state{chunk = {continue, NewCbState}, mfa = {Module, Function, Args}}}; + _ -> + handle_info({dummy, Socket, <<>>}, State#state{chunk = {continue, NewCbState}, + mfa = {Module, Function, Args}}) + end. + +handle_response(#state{body = Body, + headers = Headers, + mod = ModData, + chunk = {last, CbState}, + max_keep_alive_request = Max} = State) when Max > 0 -> + {NewBody, Data} = httpd_request:body_data(Headers, Body), + ok = httpd_response:generate_and_send_response( + ModData#mod{entity_body = {last, NewBody, CbState}}), + handle_next_request(State#state{response_sent = true}, Data); handle_response(#state{body = Body, mod = ModData, headers = Headers, max_keep_alive_request = Max} = State) when Max > 0 -> {NewBody, Data} = httpd_request:body_data(Headers, Body), + %% Backwards compatible, may cause memory explosion ok = httpd_response:generate_and_send_response( - ModData#mod{entity_body = NewBody}), + ModData#mod{entity_body = binary_to_list(NewBody)}), handle_next_request(State#state{response_sent = true}, Data); - handle_response(#state{body = Body, headers = Headers, mod = ModData} = State) -> @@ -578,6 +663,7 @@ handle_next_request(#state{mod = #mod{connection = true} = ModData, MaxURISize = max_uri_size(ModData#mod.config_db), MaxContentLen = max_content_length(ModData#mod.config_db), Customize = customize(ModData#mod.config_db), + MaxChunk = max_client_body_chunk(ModData#mod.config_db), MFA = {httpd_request, parse, [[{max_uri, MaxURISize}, {max_header, MaxHeaderSize}, {max_version, ?HTTP_MAX_VERSION_STRING}, @@ -590,6 +676,7 @@ handle_next_request(#state{mod = #mod{connection = true} = ModData, max_keep_alive_request = decrease(Max), headers = undefined, body = undefined, + chunk = chunk_start(MaxChunk), response_sent = false}, NewState = activate_request_timeout(TmpState), @@ -647,6 +734,9 @@ error_log(ReasonString, #mod{config_db = ConfigDB}) -> max_header_size(ConfigDB) -> httpd_util:lookup(ConfigDB, max_header_size, ?HTTP_MAX_HEADER_SIZE). +max_client_body_chunk(ConfigDB) -> + httpd_util:lookup(ConfigDB, max_client_body_chunk, nolimit). + max_uri_size(ConfigDB) -> httpd_util:lookup(ConfigDB, max_uri_size, ?HTTP_MAX_URI_SIZE). @@ -661,3 +751,17 @@ max_content_length(ConfigDB) -> customize(ConfigDB) -> httpd_util:lookup(ConfigDB, customize, httpd_custom). + +chunk_start(nolimit) -> + {undefined, undefined}; +chunk_start(_) -> + {first, undefined}. +chunk_finish(_, _, nolimit) -> + {undefined, undefined}; +chunk_finish(_, CbState, _) -> + {last, CbState}. + +body_chunk(first, _, Chunk) -> + {first, Chunk}; +body_chunk(ChunkState, CbState, Chunk) -> + {ChunkState, Chunk, CbState}. |