diff --git a/lib/http.js b/lib/http.js index 70e16b4777ef..f549ba1ff981 100644 --- a/lib/http.js +++ b/lib/http.js @@ -26,6 +26,7 @@ var EventEmitter = require('events').EventEmitter; var FreeList = require('freelist').FreeList; var HTTPParser = process.binding('http_parser').HTTPParser; var assert = require('assert').ok; +var END_OF_FILE = {}; var debug; @@ -108,11 +109,10 @@ var parsers = new FreeList('parsers', 1000, function() { parser.onBody = function(b, start, len) { // TODO body encoding? var slice = b.slice(start, start + len); - if (parser.incoming._decoder) { - var string = parser.incoming._decoder.write(slice); - if (string.length) parser.incoming.emit('data', string); + if (parser.incoming._paused || parser.incoming._pendings.length) { + parser.incoming._pendings.push(slice); } else { - parser.incoming.emit('data', slice); + parser.incoming._emitData(slice); } }; @@ -133,8 +133,12 @@ var parsers = new FreeList('parsers', 1000, function() { if (!parser.incoming.upgrade) { // For upgraded connections, also emit this after parser.execute - parser.incoming.readable = false; - parser.incoming.emit('end'); + if (parser.incoming._paused || parser.incoming._pendings.length) { + parser.incoming._pendings.push(END_OF_FILE); + } else { + parser.incoming.readable = false; + parser.incoming.emit('end'); + } } }; @@ -224,6 +228,9 @@ function IncomingMessage(socket) { this.readable = true; + this._paused = false; + this._pendings = []; + // request (server) only this.url = ''; @@ -251,12 +258,44 @@ IncomingMessage.prototype.setEncoding = function(encoding) { IncomingMessage.prototype.pause = function() { + this._paused = true; this.socket.pause(); }; IncomingMessage.prototype.resume = function() { - this.socket.resume(); + this._paused = false; + if (this.socket) { + this.socket.resume(); + } + if (this._pendings.length) { + var self = this; + process.nextTick(function() { + while (!self._paused && self._pendings.length) { + var chunk = self._pendings.shift(); + if (chunk !== END_OF_FILE) { + assert(Buffer.isBuffer(chunk)); + self._emitData(chunk); + } else { + assert(self._pendings.length === 0); + self.readable = false; + self.emit('end'); + } + } + }); + } +}; + + +IncomingMessage.prototype._emitData = function(d) { + if (this._decoder) { + var string = this._decoder.write(d); + if (string.length) { + this.emit('data', string); + } + } else { + this.emit('data', d); + } }; diff --git a/test/simple/test-http-pause.js b/test/simple/test-http-pause.js new file mode 100644 index 000000000000..0edf6d62215f --- /dev/null +++ b/test/simple/test-http-pause.js @@ -0,0 +1,75 @@ +// Copyright Joyent, Inc. and other Node contributors. +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the +// "Software"), to deal in the Software without restriction, including +// without limitation the rights to use, copy, modify, merge, publish, +// distribute, sublicense, and/or sell copies of the Software, and to permit +// persons to whom the Software is furnished to do so, subject to the +// following conditions: +// +// The above copyright notice and this permission notice shall be included +// in all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN +// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, +// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR +// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE +// USE OR OTHER DEALINGS IN THE SOFTWARE. + +var common = require('../common'); +var assert = require('assert'); +var http = require('http'); + +var expectedServer = 'Request Body from Client'; +var resultServer = ''; +var expectedClient = 'Response Body from Server'; +var resultClient = ''; + +var server = http.createServer(function(req, res) { + common.debug('pause server request'); + req.pause(); + setTimeout(function() { + common.debug('resume server request'); + req.resume(); + req.setEncoding('utf8'); + req.on('data', function(chunk) { + resultServer += chunk; + }); + req.on('end', function() { + common.debug(resultServer); + res.writeHead(200); + res.end(expectedClient); + }); + }, 100); +}); + +server.listen(common.PORT, function() { + var req = http.request({ + port: common.PORT, + path: '/', + method: 'POST' + }, function(res) { + common.debug('pause client response'); + res.pause(); + setTimeout(function() { + common.debug('resume client response'); + res.resume(); + res.on('data', function(chunk) { + resultClient += chunk; + }); + res.on('end', function() { + common.debug(resultClient); + server.close(); + }); + }, 100); + }); + req.end(expectedServer); +}); + +process.on('exit', function() { + assert.equal(expectedServer, resultServer); + assert.equal(expectedClient, resultClient); +});