Subversion Repositories Applications.papyrus

if(!dojo._hasResource["dojox.io.proxy.xip"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.

dojo._hasResource["dojox.io.proxy.xip"] = true;

dojo.provide("dojox.io.proxy.xip");

dojo.require("dojo.io.iframe");

dojo.require("dojox.data.dom");

dojox.io.proxy.xip = {

	//summary: Object that implements the iframe handling for XMLHttpRequest

	//IFrame Proxying.

	//description: Do not use this object directly. See the Dojo Book page

	//on XMLHttpRequest IFrame Proxying:

	//http://dojotoolkit.org/book/dojo-book-0-4/part-5-connecting-pieces/i-o/cross-domain-xmlhttprequest-using-iframe-proxy

	//Usage of XHR IFrame Proxying does not work from local disk in Safari.

	xipClientUrl: djConfig["xipClientUrl"] || dojo.moduleUrl("dojox.io.proxy", "xip_client.html"),

	_state: {},

	_stateIdCounter: 0,

	needFrameRecursion: function(){

		return (dojo.isIE >= 7);

	},

	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()){

			//IE7 hack. Need to load server URL, and have that load the xip_client.html.

			//Also, this server URL needs to different from the one eventually loaded by xip_client.html

			//Otherwise, IE7 will not load it. Funky.

			var fullClientUrl = window.location.href.split("#")[0].split("?")[0];

			if((this.xipClientUrl + "").charAt(0) == "/"){

				var endIndex = fullClientUrl.indexOf("://");

				endIndex = fullClientUrl.indexOf("/", endIndex + 3);

				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(); //fr is for Frame Recursion

		}

		this._state[stateId] = {

			facade: facade,

			stateId: stateId,

			clientFrame: dojo.io.iframe.create(stateId, "", frameUrl)

		};

		return stateId;

	},

	receive: function(/*String*/stateId, /*String*/urlEncodedData){

		/* urlEncodedData should have the following params:

				- responseHeaders

				- status

				- statusText

				- responseText

		*/

		//Decode response data.

		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]);

			}

		}

		//Set data on facade object.

		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;

			//Fix responseXML.

			var contentType = facade.getResponseHeader("Content-Type");

			if(contentType && (contentType == "application/xml" || contentType == "text/xml")){

				facade.responseXML = dojox.data.dom.createDocument(response.responseText, contentType);

			}

		}

		facade.readyState = 4;

		this.destroyState(stateId);

	},

	clientFrameLoaded: function(/*String*/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.objectToQuery(requestData));

	},

	destroyState: function(/*String*/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 dojox.io.proxy.xip.XhrIframeFacade(arguments[0].iframeProxyUrl);

		}else{

			return dojox.io.proxy.xip._xhrObjOld.apply(dojo, arguments);

		}

	}

}

//Replace the normal XHR factory with the proxy one.

dojox.io.proxy.xip._xhrObjOld = dojo._xhrObj;

dojo._xhrObj = dojox.io.proxy.xip.createFacade;

/**

	Using this a reference: http://www.w3.org/TR/XMLHttpRequest/

	Does not implement the onreadystate callback since dojo.xhr* does

	not use it.

*/

dojox.io.proxy.xip.XhrIframeFacade = function(ifpServerUrl){

	//summary: XMLHttpRequest facade object used by dojox.io.proxy.xip.

	//description: Do not use this object directly. See the Dojo Book page

	//on XMLHttpRequest IFrame Proxying:

	//http://dojotoolkit.org/book/dojo-book-0-4/part-5-connecting-pieces/i-o/cross-domain-xmlhttprequest-using-iframe-proxy

	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.extend(dojox.io.proxy.xip.XhrIframeFacade, {

	//The open method does not properly reset since Dojo does not reuse XHR objects.

	open: function(/*String*/method, /*String*/uri){

		this._method = method;

		this._uri = uri;

		this.readyState = 1;

	},

	setRequestHeader: function(/*String*/header, /*String*/value){

		this._requestHeaders[header] = value;

	},

	send: function(/*String*/stringData){

		this._bodyData = stringData;

		this._stateId = dojox.io.proxy.xip.send(this);

		this.readyState = 2;

	},

	abort: function(){

		dojox.io.proxy.xip.destroyState(this._stateId);

	},

	getAllResponseHeaders: function(){

		return this._allResponseHeaders; //String

	},

	getResponseHeader: function(/*String*/header){

		return this._responseHeaders[header]; //String

	},

	_setResponseHeaders: function(/*String*/allHeaders){

		if(allHeaders){

			this._allResponseHeaders = allHeaders;

			//Make sure ther are now CR characters in the headers.

			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];

				}

			}

		}

	}

});

}