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];
                                }
                        }
                }
        }
});

}