/*	Copyright (c) 2004-2006, The Dojo Foundation	All Rights Reserved.	Licensed under the Academic Free License version 2.1 or above OR the	modified BSD license. For more information on Dojo licensing, see:		http://dojotoolkit.org/community/licensing.shtml*/dojo.provide("dojo.io.XhrIframeProxy");dojo.require("dojo.experimental");dojo.experimental("dojo.io.XhrIframeProxy");dojo.require("dojo.io.IframeIO");dojo.require("dojo.dom");dojo.require("dojo.uri.Uri");dojo.io.XhrIframeProxy = {xipClientUrl:djConfig["xipClientUrl"] || dojo.uri.moduleUri("dojo.io", "xip_client.html"), _state:{}, _stateIdCounter:0, needFrameRecursion:function () {	return (true == dojo.render.html.ie70);}, send:function (facade) {	var stateId = "XhrIframeProxy" + (this._stateIdCounter++);	facade._stateId = stateId;	var frameUrl = this.xipClientUrl + "#0:init:id=" + stateId + "&server=" + encodeURIComponent(facade._ifpServerUrl) + "&fr=false";	if (this.needFrameRecursion()) {		var fullClientUrl = window.location.href;		if ((this.xipClientUrl + "").charAt(0) == "/") {			var endIndex = fullClientUrl.indexOf("://");			endIndex = fullClientUrl.indexOf("/", endIndex + 1);			fullClientUrl = fullClientUrl.substring(0, endIndex);		} else {			fullClientUrl = fullClientUrl.substring(0, fullClientUrl.lastIndexOf("/") + 1);		}		fullClientUrl += this.xipClientUrl;		var serverUrl = facade._ifpServerUrl + (facade._ifpServerUrl.indexOf("?") == -1 ? "?" : "&") + "dojo.fr=1";		frameUrl = serverUrl + "#0:init:id=" + stateId + "&client=" + encodeURIComponent(fullClientUrl) + "&fr=" + this.needFrameRecursion();	}	this._state[stateId] = {facade:facade, stateId:stateId, clientFrame:dojo.io.createIFrame(stateId, "", frameUrl)};	return stateId;}, receive:function (stateId, urlEncodedData) {	var response = {};	var nvPairs = urlEncodedData.split("&");	for (var i = 0; i < nvPairs.length; i++) {		if (nvPairs[i]) {			var nameValue = nvPairs[i].split("=");			response[decodeURIComponent(nameValue[0])] = decodeURIComponent(nameValue[1]);		}	}	var state = this._state[stateId];	var facade = state.facade;	facade._setResponseHeaders(response.responseHeaders);	if (response.status == 0 || response.status) {		facade.status = parseInt(response.status, 10);	}	if (response.statusText) {		facade.statusText = response.statusText;	}	if (response.responseText) {		facade.responseText = response.responseText;		var contentType = facade.getResponseHeader("Content-Type");		if (contentType && (contentType == "application/xml" || contentType == "text/xml")) {			facade.responseXML = dojo.dom.createDocumentFromText(response.responseText, contentType);		}	}	facade.readyState = 4;	this.destroyState(stateId);}, clientFrameLoaded:function (stateId) {	var state = this._state[stateId];	var facade = state.facade;	if (this.needFrameRecursion()) {		var clientWindow = window.open("", state.stateId + "_clientEndPoint");	} else {		var clientWindow = state.clientFrame.contentWindow;	}	var reqHeaders = [];	for (var param in facade._requestHeaders) {		reqHeaders.push(param + ": " + facade._requestHeaders[param]);	}	var requestData = {uri:facade._uri};	if (reqHeaders.length > 0) {		requestData.requestHeaders = reqHeaders.join("\r\n");	}	if (facade._method) {		requestData.method = facade._method;	}	if (facade._bodyData) {		requestData.data = facade._bodyData;	}	clientWindow.send(dojo.io.argsFromMap(requestData, "utf8"));}, destroyState:function (stateId) {	var state = this._state[stateId];	if (state) {		delete this._state[stateId];		var parentNode = state.clientFrame.parentNode;		parentNode.removeChild(state.clientFrame);		state.clientFrame = null;		state = null;	}}, createFacade:function () {	if (arguments && arguments[0] && arguments[0]["iframeProxyUrl"]) {		return new dojo.io.XhrIframeFacade(arguments[0]["iframeProxyUrl"]);	} else {		return dojo.io.XhrIframeProxy.oldGetXmlhttpObject.apply(dojo.hostenv, arguments);	}}};dojo.io.XhrIframeProxy.oldGetXmlhttpObject = dojo.hostenv.getXmlhttpObject;dojo.hostenv.getXmlhttpObject = dojo.io.XhrIframeProxy.createFacade;dojo.io.XhrIframeFacade = function (ifpServerUrl) {	this._requestHeaders = {};	this._allResponseHeaders = null;	this._responseHeaders = {};	this._method = null;	this._uri = null;	this._bodyData = null;	this.responseText = null;	this.responseXML = null;	this.status = null;	this.statusText = null;	this.readyState = 0;	this._ifpServerUrl = ifpServerUrl;	this._stateId = null;};dojo.lang.extend(dojo.io.XhrIframeFacade, {open:function (method, uri) {	this._method = method;	this._uri = uri;	this.readyState = 1;}, setRequestHeader:function (header, value) {	this._requestHeaders[header] = value;}, send:function (stringData) {	this._bodyData = stringData;	this._stateId = dojo.io.XhrIframeProxy.send(this);	this.readyState = 2;}, abort:function () {	dojo.io.XhrIframeProxy.destroyState(this._stateId);}, getAllResponseHeaders:function () {	return this._allResponseHeaders;}, getResponseHeader:function (header) {	return this._responseHeaders[header];}, _setResponseHeaders:function (allHeaders) {	if (allHeaders) {		this._allResponseHeaders = allHeaders;		allHeaders = allHeaders.replace(/\r/g, "");		var nvPairs = allHeaders.split("\n");		for (var i = 0; i < nvPairs.length; i++) {			if (nvPairs[i]) {				var nameValue = nvPairs[i].split(": ");				this._responseHeaders[nameValue[0]] = nameValue[1];			}		}	}}});