/* # Mantis - a php based bugtracking system # Copyright (C) 2000 - 2002 Kenzaburo Ito - kenito@300baud.org # Copyright (C) 2002 - 2007 Mantis Team - mantisbt-dev@lists.sourceforge.net # Mantis is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 2 of the License, or # (at your option) any later version. # # Mantis is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with Mantis. If not, see . * * -------------------------------------------------------- * $Id: xmlhttprequest.js,v 1.2.22.1 2007-10-13 22:35:57 giallu Exp $ * -------------------------------------------------------- */ /* Cross-Browser XMLHttpRequest v1.1 ================================= Emulate Gecko 'XMLHttpRequest()' functionality in IE and Opera. Opera requires the Sun Java Runtime Environment . by Andrew Gregory http://www.scss.com.au/family/andrew/webdesign/xmlhttprequest/ This work is licensed under the Creative Commons Attribution License. To view a copy of this license, visit http://creativecommons.org/licenses/by/1.0/ or send a letter to Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA. Not Supported in Opera ---------------------- * user/password authentication * responseXML data member Not Fully Supported in Opera ---------------------------- * async requests * abort() * getAllResponseHeaders(), getAllResponseHeader(header) */ /* * commented out (30/07/2004) because it was causing subsequent request to freeze // IE support if (window.ActiveXObject && !window.XMLHttpRequest) { window.XMLHttpRequest = function() { return new ActiveXObject((navigator.userAgent.toLowerCase().indexOf('msie 5') != -1) ? 'Microsoft.XMLHTTP' : 'Msxml2.XMLHTTP'); }; } */ // Gecko support /* ;-) */ // Opera support if (window.opera && !window.XMLHttpRequest) { window.XMLHttpRequest = function() { this.readyState = 0; // 0=uninitialized,1=loading,2=loaded,3=interactive,4=complete this.status = 0; // HTTP status codes this.statusText = ''; this._headers = []; this._aborted = false; this._async = true; this.abort = function() { this._aborted = true; }; this.getAllResponseHeaders = function() { return this.getAllResponseHeader('*'); }; this.getAllResponseHeader = function(header) { var ret = ''; for (var i = 0; i < this._headers.length; i++) { if (header == '*' || this._headers[i].h == header) { ret += this._headers[i].h + ': ' + this._headers[i].v + '\n'; } } return ret; }; this.setRequestHeader = function(header, value) { this._headers[this._headers.length] = {h:header, v:value}; }; this.open = function(method, url, async, user, password) { this.method = method; this.url = url; this._async = true; this._aborted = false; if (arguments.length >= 3) { this._async = async; } if (arguments.length > 3) { // user/password support requires a custom Authenticator class opera.postError('XMLHttpRequest.open() - user/password not supported'); } this._headers = []; this.readyState = 1; if (this.onreadystatechange) { this.onreadystatechange(); } }; this.send = function(data) { if (!navigator.javaEnabled()) { alert("XMLHttpRequest.send() - Java must be installed and enabled."); return; } if (this._async) { setTimeout(this._sendasync, 0, this, data); // this is not really asynchronous and won't execute until the current // execution context ends } else { this._sendsync(data); } } this._sendasync = function(req, data) { if (!req._aborted) { req._sendsync(data); } }; this._sendsync = function(data) { this.readyState = 2; if (this.onreadystatechange) { this.onreadystatechange(); } // open connection var url = new java.net.URL(new java.net.URL(window.location.href), this.url); var conn = url.openConnection(); for (var i = 0; i < this._headers.length; i++) { conn.setRequestProperty(this._headers[i].h, this._headers[i].v); } this._headers = []; if (this.method == 'POST') { // POST data conn.setDoOutput(true); var wr = new java.io.OutputStreamWriter(conn.getOutputStream()); wr.write(data); wr.flush(); wr.close(); } // read response headers // NOTE: the getHeaderField() methods always return nulls for me :( var gotContentEncoding = false; var gotContentLength = false; var gotContentType = false; var gotDate = false; var gotExpiration = false; var gotLastModified = false; for (var i = 0; ; i++) { var hdrName = conn.getHeaderFieldKey(i); var hdrValue = conn.getHeaderField(i); if (hdrName == null && hdrValue == null) { break; } if (hdrName != null) { this._headers[this._headers.length] = {h:hdrName, v:hdrValue}; switch (hdrName.toLowerCase()) { case 'content-encoding': gotContentEncoding = true; break; case 'content-length' : gotContentLength = true; break; case 'content-type' : gotContentType = true; break; case 'date' : gotDate = true; break; case 'expires' : gotExpiration = true; break; case 'last-modified' : gotLastModified = true; break; } } } // try to fill in any missing header information var val; val = conn.getContentEncoding(); if (val != null && !gotContentEncoding) this._headers[this._headers.length] = {h:'Content-encoding', v:val}; val = conn.getContentLength(); if (val != -1 && !gotContentLength) this._headers[this._headers.length] = {h:'Content-length', v:val}; val = conn.getContentType(); if (val != null && !gotContentType) this._headers[this._headers.length] = {h:'Content-type', v:val}; val = conn.getDate(); if (val != 0 && !gotDate) this._headers[this._headers.length] = {h:'Date', v:(new Date(val)).toUTCString()}; val = conn.getExpiration(); if (val != 0 && !gotExpiration) this._headers[this._headers.length] = {h:'Expires', v:(new Date(val)).toUTCString()}; val = conn.getLastModified(); if (val != 0 && !gotLastModified) this._headers[this._headers.length] = {h:'Last-modified', v:(new Date(val)).toUTCString()}; // read response data var reqdata = ''; var stream = conn.getInputStream(); if (stream) { var reader = new java.io.BufferedReader(new java.io.InputStreamReader(stream)); var line; while ((line = reader.readLine()) != null) { if (this.readyState == 2) { this.readyState = 3; if (this.onreadystatechange) { this.onreadystatechange(); } } reqdata += line + '\n'; } reader.close(); this.status = 200; this.statusText = 'OK'; this.responseText = reqdata; this.readyState = 4; if (this.onreadystatechange) { this.onreadystatechange(); } if (this.onload) { this.onload(); } } else { // error this.status = 404; this.statusText = 'Not Found'; this.responseText = ''; this.readyState = 4; if (this.onreadystatechange) { this.onreadystatechange(); } if (this.onerror) { this.onerror(); } } }; }; } // ActiveXObject emulation if (!window.ActiveXObject && window.XMLHttpRequest) { window.ActiveXObject = function(type) { switch (type.toLowerCase()) { case 'microsoft.xmlhttp': case 'msxml2.xmlhttp': return new XMLHttpRequest(); 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