2017-02-06 12:40:24 +00:00

92 lines
3.2 KiB
JavaScript

/**
* V8Debugger
*
* Copyright (c) 2010 Ajax.org B.V.
*
* The MIT License (MIT)
*
* 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.
*/
define(function(require, exports, module) {
"use strict";
var Util = require("./util");
var readBytes = Util.readBytes;
var MessageReader = module.exports = function(socket, callback) {
this.$socket = socket;
this.$callback = callback;
this.$received = "";
this.$expectedBytes = 0;
this.$offset = 0;
this.$cbReceive = this.$onreceive.bind(this);
socket.on("data", this.$cbReceive);
};
(function() {
this.$onreceive = function(data) {
// this.$socket.clearBuffer();
this.$received += data;
var fullResponse;
while (fullResponse = this.$checkForWholeMessage())
this.$callback(fullResponse);
};
this.$checkForWholeMessage = function() {
var fullResponse = false;
var received = this.$received;
if (!this.$expectedBytes) { // header
var i = received.indexOf("\r\n\r\n");
if (i !== -1) {
var c = received.lastIndexOf("Content-Length:", i);
if (c != -1) {
var l = received.indexOf("\r\n", c);
var len = parseInt(received.substring(c + 15, l), 10);
this.$expectedBytes = len;
}
this.$offset = i + 4;
}
}
if (this.$expectedBytes) { // body
var result = readBytes(received, this.$offset, this.$expectedBytes);
this.$expectedBytes -= result.bytes;
this.$offset += result.length;
}
if (this.$offset && this.$expectedBytes <= 0) {
fullResponse = received.substring(0, this.$offset);
this.$received = received.substr(this.$offset);
this.$offset = this.$expectedBytes = 0;
}
// console.log("RECEIVE>", fullResponse, this.$received.length);
return fullResponse;
};
this.destroy = function() {
this.$socket && this.$socket.removeListener("data", this.$cbReceive);
delete this.$socket;
delete this.$callback;
this.$received = "";
};
}).call(MessageReader.prototype);
});