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Diffstat (limited to 'includes/js/dojox/io/proxy/xip.js')
| -rw-r--r-- | includes/js/dojox/io/proxy/xip.js | 441 |
1 files changed, 0 insertions, 441 deletions
diff --git a/includes/js/dojox/io/proxy/xip.js b/includes/js/dojox/io/proxy/xip.js deleted file mode 100644 index b88d910..0000000 --- a/includes/js/dojox/io/proxy/xip.js +++ /dev/null @@ -1,441 +0,0 @@ -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. - - /* - This code is really focused on just sending one complete request to the server, and - receiving one complete response per iframe. The code does not expect to reuse iframes for multiple XHR request/response - sequences. This might be reworked later if performance indicates a need for it. - - xip fragment identifier/hash values have the form: - #id:cmd:realEncodedMessage - - id: some ID that should be unique among message fragments. No inherent meaning, - just something to make sure the hash value is unique so the message - receiver knows a new message is available. - - cmd: command to the receiver. Valid values are: - - init: message used to init the frame. Sent as the first URL when loading - the page. Contains some config parameters. - - loaded: the remote frame is loaded. Only sent from xip_client.html to this module. - - ok: the message that this page sent was received OK. The next message may - now be sent. - - start: the start message of a block of messages (a complete message may - need to be segmented into many messages to get around the limitiations - of the size of an URL that a browser accepts. - - part: indicates this is a part of a message. - - end: the end message of a block of messages. The message can now be acted upon. - If the message is small enough that it doesn't need to be segmented, then - just one hash value message can be sent with "end" as the command. - - To reassemble a segmented message, the realEncodedMessage parts just have to be concatenated - together. - */ - - xipClientUrl: ((dojo.config || djConfig)["xipClientUrl"]) || dojo.moduleUrl("dojox.io.proxy", "xip_client.html"), - - - //MSIE has the lowest limit for URLs with fragment identifiers, - //at around 4K. Choosing a slightly smaller number for good measure. - urlLimit: 4000, - - _callbackName: (dojox._scopeName || "dojox") + ".io.proxy.xip.fragmentReceived", - _state: {}, - _stateIdCounter: 0, - _isWebKit: navigator.userAgent.indexOf("WebKit") != -1, - - - send: function(/*Object*/facade){ - //summary: starts the xdomain request using the provided facade. - //This method first does some init work, then delegates to _realSend. - - var url = this.xipClientUrl; - //Make sure we are not dealing with javascript urls, just to be safe. - if(url.split(":")[0].match(/javascript/i) || facade._ifpServerUrl.split(":")[0].match(/javascript/i)){ - return; - } - - //Make xip_client a full URL. - var colonIndex = url.indexOf(":"); - var slashIndex = url.indexOf("/"); - if(colonIndex == -1 || slashIndex < colonIndex){ - //No colon or we are starting with a / before a colon, so we need to make a full URL. - var loc = window.location.href; - if(slashIndex == 0){ - //Have a full path, just need the domain. - url = loc.substring(0, loc.indexOf("/", 9)) + url; //Using 9 to get past http(s):// - }else{ - url = loc.substring(0, (loc.lastIndexOf("/") + 1)) + url; - } - } - this.fullXipClientUrl = url; - - //Set up an HTML5 messaging listener if postMessage exists. - //As of this writing, this is only useful to get Opera 9.25+ to work. - if(typeof document.postMessage != "undefined"){ - document.addEventListener("message", dojo.hitch(this, this.fragmentReceivedEvent), false); - } - - //Now that we did first time init, always use the realSend method. - this.send = this._realSend; - return this._realSend(facade); //Object - }, - - _realSend: function(facade){ - //summary: starts the actual xdomain request using the provided facade. - var stateId = "XhrIframeProxy" + (this._stateIdCounter++); - facade._stateId = stateId; - - var frameUrl = facade._ifpServerUrl + "#0:init:id=" + stateId + "&client=" - + encodeURIComponent(this.fullXipClientUrl) + "&callback=" + encodeURIComponent(this._callbackName); - - this._state[stateId] = { - facade: facade, - stateId: stateId, - clientFrame: dojo.io.iframe.create(stateId, "", frameUrl), - isSending: false, - serverUrl: facade._ifpServerUrl, - requestData: null, - responseMessage: "", - requestParts: [], - idCounter: 1, - partIndex: 0, - serverWindow: null - }; - - return stateId; //Object - }, - - 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){ - var mimeType = contentType.split(";")[0]; - if(mimeType.indexOf("application/xml") == 0 || mimeType.indexOf("text/xml") == 0){ - facade.responseXML = dojox.data.dom.createDocument(response.responseText, contentType); - } - } - } - facade.readyState = 4; - - this.destroyState(stateId); - }, - - frameLoaded: function(/*String*/stateId){ - var state = this._state[stateId]; - var facade = state.facade; - - 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; - } - - this.sendRequest(stateId, 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); - } - }, - - //**** State-bound methods **** - sendRequest: function(stateId, encodedData){ - var state = this._state[stateId]; - if(!state.isSending){ - state.isSending = true; - - state.requestData = encodedData || ""; - - //Get a handle to the server iframe. - state.serverWindow = frames[state.stateId]; - if (!state.serverWindow){ - state.serverWindow = document.getElementById(state.stateId).contentWindow; - } - - //Make sure we have contentWindow, but only do this for non-postMessage - //browsers (right now just opera is postMessage). - if(typeof document.postMessage == "undefined"){ - if(state.serverWindow.contentWindow){ - state.serverWindow = state.serverWindow.contentWindow; - } - } - - this.sendRequestStart(stateId); - } - }, - - sendRequestStart: function(stateId){ - //Break the message into parts, if necessary. - var state = this._state[stateId]; - state.requestParts = []; - var reqData = state.requestData; - var urlLength = state.serverUrl.length; - var partLength = this.urlLimit - urlLength; - var reqIndex = 0; - - while((reqData.length - reqIndex) + urlLength > this.urlLimit){ - var part = reqData.substring(reqIndex, reqIndex + partLength); - //Safari will do some extra hex escaping unless we keep the original hex - //escaping complete. - var percentIndex = part.lastIndexOf("%"); - if(percentIndex == part.length - 1 || percentIndex == part.length - 2){ - part = part.substring(0, percentIndex); - } - state.requestParts.push(part); - reqIndex += part.length; - } - state.requestParts.push(reqData.substring(reqIndex, reqData.length)); - - state.partIndex = 0; - this.sendRequestPart(stateId); - - }, - - sendRequestPart: function(stateId){ - var state = this._state[stateId]; - - if(state.partIndex < state.requestParts.length){ - //Get the message part. - var partData = state.requestParts[state.partIndex]; - - //Get the command. - var cmd = "part"; - if(state.partIndex + 1 == state.requestParts.length){ - cmd = "end"; - }else if (state.partIndex == 0){ - cmd = "start"; - } - - this.setServerUrl(stateId, cmd, partData); - state.partIndex++; - } - }, - - setServerUrl: function(stateId, cmd, message){ - var serverUrl = this.makeServerUrl(stateId, cmd, message); - var state = this._state[stateId]; - - //Safari won't let us replace across domains. - if(this._isWebKit){ - state.serverWindow.location = serverUrl; - }else{ - state.serverWindow.location.replace(serverUrl); - } - }, - - makeServerUrl: function(stateId, cmd, message){ - var state = this._state[stateId]; - var serverUrl = state.serverUrl + "#" + (state.idCounter++) + ":" + cmd; - if(message){ - serverUrl += ":" + message; - } - return serverUrl; - }, - - fragmentReceivedEvent: function(evt){ - //summary: HTML5 document messaging endpoint. Unpack the event to see - //if we want to use it. - if(evt.uri.split("#")[0] == this.fullXipClientUrl){ - this.fragmentReceived(evt.data); - } - }, - - fragmentReceived: function(frag){ - var index = frag.indexOf("#"); - var stateId = frag.substring(0, index); - var encodedData = frag.substring(index + 1, frag.length); - - var msg = this.unpackMessage(encodedData); - var state = this._state[stateId]; - - switch(msg.command){ - case "loaded": - this.frameLoaded(stateId); - break; - case "ok": - this.sendRequestPart(stateId); - break; - case "start": - state.responseMessage = "" + msg.message; - this.setServerUrl(stateId, "ok"); - break; - case "part": - state.responseMessage += msg.message; - this.setServerUrl(stateId, "ok"); - break; - case "end": - this.setServerUrl(stateId, "ok"); - state.responseMessage += msg.message; - this.receive(stateId, state.responseMessage); - break; - } - }, - - unpackMessage: function(encodedMessage){ - var parts = encodedMessage.split(":"); - var command = parts[1]; - encodedMessage = parts[2] || ""; - - var config = null; - if(command == "init"){ - var configParts = encodedMessage.split("&"); - config = {}; - for(var i = 0; i < configParts.length; i++){ - var nameValue = configParts[i].split("="); - config[decodeURIComponent(nameValue[0])] = decodeURIComponent(nameValue[1]); - } - } - return {command: command, message: encodedMessage, config: config}; - } -} - -//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]; - } - } - } - } -}); - -} |