Subversion Repositories Applications.papyrus

/*
        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.require("dojo.io.common");
dojo.provide("dojo.io.cometd");
dojo.require("dojo.AdapterRegistry");
dojo.require("dojo.json");
dojo.require("dojo.io.BrowserIO");
dojo.require("dojo.io.IframeIO");
dojo.require("dojo.io.ScriptSrcIO");
dojo.require("dojo.io.cookie");
dojo.require("dojo.event.*");
dojo.require("dojo.lang.common");
dojo.require("dojo.lang.func");
cometd = new function () {
        this.initialized = false;
        this.connected = false;
        this.connectionTypes = new dojo.AdapterRegistry(true);
        this.version = 0.1;
        this.minimumVersion = 0.1;
        this.clientId = null;
        this._isXD = false;
        this.handshakeReturn = null;
        this.currentTransport = null;
        this.url = null;
        this.lastMessage = null;
        this.globalTopicChannels = {};
        this.backlog = [];
        this.tunnelInit = function (childLocation, childDomain) {
        };
        this.tunnelCollapse = function () {
                dojo.debug("tunnel collapsed!");
        };
        this.init = function (props, root, bargs) {
                props = props || {};
                props.version = this.version;
                props.minimumVersion = this.minimumVersion;
                props.channel = "/meta/handshake";
                this.url = root || djConfig["cometdRoot"];
                if (!this.url) {
                        dojo.debug("no cometd root specified in djConfig and no root passed");
                        return;
                }
                var bindArgs = {url:this.url, method:"POST", mimetype:"text/json", load:dojo.lang.hitch(this, "finishInit"), content:{"message":dojo.json.serialize([props])}};
                var regexp = "^(([^:/?#]+):)?(//([^/?#]*))?([^?#]*)(\\?([^#]*))?(#(.*))?$";
                var r = ("" + window.location).match(new RegExp(regexp));
                if (r[4]) {
                        var tmp = r[4].split(":");
                        var thisHost = tmp[0];
                        var thisPort = tmp[1] || "80";
                        r = this.url.match(new RegExp(regexp));
                        if (r[4]) {
                                tmp = r[4].split(":");
                                var urlHost = tmp[0];
                                var urlPort = tmp[1] || "80";
                                if ((urlHost != thisHost) || (urlPort != thisPort)) {
                                        dojo.debug(thisHost, urlHost);
                                        dojo.debug(thisPort, urlPort);
                                        this._isXD = true;
                                        bindArgs.transport = "ScriptSrcTransport";
                                        bindArgs.jsonParamName = "jsonp";
                                        bindArgs.method = "GET";
                                }
                        }
                }
                if (bargs) {
                        dojo.lang.mixin(bindArgs, bargs);
                }
                return dojo.io.bind(bindArgs);
        };
        this.finishInit = function (type, data, evt, request) {
                data = data[0];
                this.handshakeReturn = data;
                if (data["authSuccessful"] == false) {
                        dojo.debug("cometd authentication failed");
                        return;
                }
                if (data.version < this.minimumVersion) {
                        dojo.debug("cometd protocol version mismatch. We wanted", this.minimumVersion, "but got", data.version);
                        return;
                }
                this.currentTransport = this.connectionTypes.match(data.supportedConnectionTypes, data.version, this._isXD);
                this.currentTransport.version = data.version;
                this.clientId = data.clientId;
                this.tunnelInit = dojo.lang.hitch(this.currentTransport, "tunnelInit");
                this.tunnelCollapse = dojo.lang.hitch(this.currentTransport, "tunnelCollapse");
                this.initialized = true;
                this.currentTransport.startup(data);
                while (this.backlog.length != 0) {
                        var cur = this.backlog.shift();
                        var fn = cur.shift();
                        this[fn].apply(this, cur);
                }
        };
        this._getRandStr = function () {
                return Math.random().toString().substring(2, 10);
        };
        this.deliver = function (messages) {
                dojo.lang.forEach(messages, this._deliver, this);
        };
        this._deliver = function (message) {
                if (!message["channel"]) {
                        dojo.debug("cometd error: no channel for message!");
                        return;
                }
                if (!this.currentTransport) {
                        this.backlog.push(["deliver", message]);
                        return;
                }
                this.lastMessage = message;
                if ((message.channel.length > 5) && (message.channel.substr(0, 5) == "/meta")) {
                        switch (message.channel) {
                          case "/meta/subscribe":
                                if (!message.successful) {
                                        dojo.debug("cometd subscription error for channel", message.channel, ":", message.error);
                                        return;
                                }
                                this.subscribed(message.subscription, message);
                                break;
                          case "/meta/unsubscribe":
                                if (!message.successful) {
                                        dojo.debug("cometd unsubscription error for channel", message.channel, ":", message.error);
                                        return;
                                }
                                this.unsubscribed(message.subscription, message);
                                break;
                        }
                }
                this.currentTransport.deliver(message);
                if (message.data) {
                        var tname = (this.globalTopicChannels[message.channel]) ? message.channel : "/cometd" + message.channel;
                        dojo.event.topic.publish(tname, message);
                }
        };
        this.disconnect = function () {
                if (!this.currentTransport) {
                        dojo.debug("no current transport to disconnect from");
                        return;
                }
                this.currentTransport.disconnect();
        };
        this.publish = function (channel, data, properties) {
                if (!this.currentTransport) {
                        this.backlog.push(["publish", channel, data, properties]);
                        return;
                }
                var message = {data:data, channel:channel};
                if (properties) {
                        dojo.lang.mixin(message, properties);
                }
                return this.currentTransport.sendMessage(message);
        };
        this.subscribe = function (channel, useLocalTopics, objOrFunc, funcName) {
                if (!this.currentTransport) {
                        this.backlog.push(["subscribe", channel, useLocalTopics, objOrFunc, funcName]);
                        return;
                }
                if (objOrFunc) {
                        var tname = (useLocalTopics) ? channel : "/cometd" + channel;
                        if (useLocalTopics) {
                                this.globalTopicChannels[channel] = true;
                        }
                        dojo.event.topic.subscribe(tname, objOrFunc, funcName);
                }
                return this.currentTransport.sendMessage({channel:"/meta/subscribe", subscription:channel});
        };
        this.subscribed = function (channel, message) {
                dojo.debug(channel);
                dojo.debugShallow(message);
        };
        this.unsubscribe = function (channel, useLocalTopics, objOrFunc, funcName) {
                if (!this.currentTransport) {
                        this.backlog.push(["unsubscribe", channel, useLocalTopics, objOrFunc, funcName]);
                        return;
                }
                if (objOrFunc) {
                        var tname = (useLocalTopics) ? channel : "/cometd" + channel;
                        dojo.event.topic.unsubscribe(tname, objOrFunc, funcName);
                }
                return this.currentTransport.sendMessage({channel:"/meta/unsubscribe", subscription:channel});
        };
        this.unsubscribed = function (channel, message) {
                dojo.debug(channel);
                dojo.debugShallow(message);
        };
};
cometd.iframeTransport = new function () {
        this.connected = false;
        this.connectionId = null;
        this.rcvNode = null;
        this.rcvNodeName = "";
        this.phonyForm = null;
        this.authToken = null;
        this.lastTimestamp = null;
        this.lastId = null;
        this.backlog = [];
        this.check = function (types, version, xdomain) {
                return ((!xdomain) && (!dojo.render.html.safari) && (dojo.lang.inArray(types, "iframe")));
        };
        this.tunnelInit = function () {
                this.postToIframe({message:dojo.json.serialize([{channel:"/meta/connect", clientId:cometd.clientId, connectionType:"iframe"}])});
        };
        this.tunnelCollapse = function () {
                if (this.connected) {
                        this.connected = false;
                        this.postToIframe({message:dojo.json.serialize([{channel:"/meta/reconnect", clientId:cometd.clientId, connectionId:this.connectionId, timestamp:this.lastTimestamp, id:this.lastId}])});
                }
        };
        this.deliver = function (message) {
                if (message["timestamp"]) {
                        this.lastTimestamp = message.timestamp;
                }
                if (message["id"]) {
                        this.lastId = message.id;
                }
                if ((message.channel.length > 5) && (message.channel.substr(0, 5) == "/meta")) {
                        switch (message.channel) {
                          case "/meta/connect":
                                if (!message.successful) {
                                        dojo.debug("cometd connection error:", message.error);
                                        return;
                                }
                                this.connectionId = message.connectionId;
                                this.connected = true;
                                this.processBacklog();
                                break;
                          case "/meta/reconnect":
                                if (!message.successful) {
                                        dojo.debug("cometd reconnection error:", message.error);
                                        return;
                                }
                                this.connected = true;
                                break;
                          case "/meta/subscribe":
                                if (!message.successful) {
                                        dojo.debug("cometd subscription error for channel", message.channel, ":", message.error);
                                        return;
                                }
                                dojo.debug(message.channel);
                                break;
                        }
                }
        };
        this.widenDomain = function (domainStr) {
                var cd = domainStr || document.domain;
                if (cd.indexOf(".") == -1) {
                        return;
                }
                var dps = cd.split(".");
                if (dps.length <= 2) {
                        return;
                }
                dps = dps.slice(dps.length - 2);
                document.domain = dps.join(".");
                return document.domain;
        };
        this.postToIframe = function (content, url) {
                if (!this.phonyForm) {
                        if (dojo.render.html.ie) {
                                this.phonyForm = document.createElement("<form enctype='application/x-www-form-urlencoded' method='POST' style='display: none;'>");
                                dojo.body().appendChild(this.phonyForm);
                        } else {
                                this.phonyForm = document.createElement("form");
                                this.phonyForm.style.display = "none";
                                dojo.body().appendChild(this.phonyForm);
                                this.phonyForm.enctype = "application/x-www-form-urlencoded";
                                this.phonyForm.method = "POST";
                        }
                }
                this.phonyForm.action = url || cometd.url;
                this.phonyForm.target = this.rcvNodeName;
                this.phonyForm.setAttribute("target", this.rcvNodeName);
                while (this.phonyForm.firstChild) {
                        this.phonyForm.removeChild(this.phonyForm.firstChild);
                }
                for (var x in content) {
                        var tn;
                        if (dojo.render.html.ie) {
                                tn = document.createElement("<input type='hidden' name='" + x + "' value='" + content[x] + "'>");
                                this.phonyForm.appendChild(tn);
                        } else {
                                tn = document.createElement("input");
                                this.phonyForm.appendChild(tn);
                                tn.type = "hidden";
                                tn.name = x;
                                tn.value = content[x];
                        }
                }
                this.phonyForm.submit();
        };
        this.processBacklog = function () {
                while (this.backlog.length > 0) {
                        this.sendMessage(this.backlog.shift(), true);
                }
        };
        this.sendMessage = function (message, bypassBacklog) {
                if ((bypassBacklog) || (this.connected)) {
                        message.connectionId = this.connectionId;
                        message.clientId = cometd.clientId;
                        var bindArgs = {url:cometd.url || djConfig["cometdRoot"], method:"POST", mimetype:"text/json", content:{message:dojo.json.serialize([message])}};
                        return dojo.io.bind(bindArgs);
                } else {
                        this.backlog.push(message);
                }
        };
        this.startup = function (handshakeData) {
                dojo.debug("startup!");
                dojo.debug(dojo.json.serialize(handshakeData));
                if (this.connected) {
                        return;
                }
                this.rcvNodeName = "cometdRcv_" + cometd._getRandStr();
                var initUrl = cometd.url + "/?tunnelInit=iframe";
                if (false && dojo.render.html.ie) {
                        this.rcvNode = new ActiveXObject("htmlfile");
                        this.rcvNode.open();
                        this.rcvNode.write("<html>");
                        this.rcvNode.write("<script>document.domain = '" + document.domain + "'");
                        this.rcvNode.write("</html>");
                        this.rcvNode.close();
                        var ifrDiv = this.rcvNode.createElement("div");
                        this.rcvNode.appendChild(ifrDiv);
                        this.rcvNode.parentWindow.dojo = dojo;
                        ifrDiv.innerHTML = "<iframe src='" + initUrl + "'></iframe>";
                } else {
                        this.rcvNode = dojo.io.createIFrame(this.rcvNodeName, "", initUrl);
                }
        };
};
cometd.mimeReplaceTransport = new function () {
        this.connected = false;
        this.connectionId = null;
        this.xhr = null;
        this.authToken = null;
        this.lastTimestamp = null;
        this.lastId = null;
        this.backlog = [];
        this.check = function (types, version, xdomain) {
                return ((!xdomain) && (dojo.render.html.mozilla) && (dojo.lang.inArray(types, "mime-message-block")));
        };
        this.tunnelInit = function () {
                if (this.connected) {
                        return;
                }
                this.openTunnelWith({message:dojo.json.serialize([{channel:"/meta/connect", clientId:cometd.clientId, connectionType:"mime-message-block"}])});
                this.connected = true;
        };
        this.tunnelCollapse = function () {
                if (this.connected) {
                        this.connected = false;
                        this.openTunnelWith({message:dojo.json.serialize([{channel:"/meta/reconnect", clientId:cometd.clientId, connectionId:this.connectionId, timestamp:this.lastTimestamp, id:this.lastId}])});
                }
        };
        this.deliver = cometd.iframeTransport.deliver;
        this.handleOnLoad = function (resp) {
                cometd.deliver(dojo.json.evalJson(this.xhr.responseText));
        };
        this.openTunnelWith = function (content, url) {
                this.xhr = dojo.hostenv.getXmlhttpObject();
                this.xhr.multipart = true;
                if (dojo.render.html.mozilla) {
                        this.xhr.addEventListener("load", dojo.lang.hitch(this, "handleOnLoad"), false);
                } else {
                        if (dojo.render.html.safari) {
                                dojo.debug("Webkit is broken with multipart responses over XHR = (");
                                this.xhr.onreadystatechange = dojo.lang.hitch(this, "handleOnLoad");
                        } else {
                                this.xhr.onload = dojo.lang.hitch(this, "handleOnLoad");
                        }
                }
                this.xhr.open("POST", (url || cometd.url), true);
                this.xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
                dojo.debug(dojo.json.serialize(content));
                this.xhr.send(dojo.io.argsFromMap(content, "utf8"));
        };
        this.processBacklog = function () {
                while (this.backlog.length > 0) {
                        this.sendMessage(this.backlog.shift(), true);
                }
        };
        this.sendMessage = function (message, bypassBacklog) {
                if ((bypassBacklog) || (this.connected)) {
                        message.connectionId = this.connectionId;
                        message.clientId = cometd.clientId;
                        var bindArgs = {url:cometd.url || djConfig["cometdRoot"], method:"POST", mimetype:"text/json", content:{message:dojo.json.serialize([message])}};
                        return dojo.io.bind(bindArgs);
                } else {
                        this.backlog.push(message);
                }
        };
        this.startup = function (handshakeData) {
                dojo.debugShallow(handshakeData);
                if (this.connected) {
                        return;
                }
                this.tunnelInit();
        };
};
cometd.longPollTransport = new function () {
        this.connected = false;
        this.connectionId = null;
        this.authToken = null;
        this.lastTimestamp = null;
        this.lastId = null;
        this.backlog = [];
        this.check = function (types, version, xdomain) {
                return ((!xdomain) && (dojo.lang.inArray(types, "long-polling")));
        };
        this.tunnelInit = function () {
                if (this.connected) {
                        return;
                }
                this.openTunnelWith({message:dojo.json.serialize([{channel:"/meta/connect", clientId:cometd.clientId, connectionType:"long-polling"}])});
                this.connected = true;
        };
        this.tunnelCollapse = function () {
                if (!this.connected) {
                        this.connected = false;
                        dojo.debug("clientId:", cometd.clientId);
                        this.openTunnelWith({message:dojo.json.serialize([{channel:"/meta/reconnect", connectionType:"long-polling", clientId:cometd.clientId, connectionId:this.connectionId, timestamp:this.lastTimestamp, id:this.lastId}])});
                }
        };
        this.deliver = cometd.iframeTransport.deliver;
        this.openTunnelWith = function (content, url) {
                dojo.io.bind({url:(url || cometd.url), method:"post", content:content, mimetype:"text/json", load:dojo.lang.hitch(this, function (type, data, evt, args) {
                        cometd.deliver(data);
                        this.connected = false;
                        this.tunnelCollapse();
                }), error:function () {
                        dojo.debug("tunnel opening failed");
                }});
                this.connected = true;
        };
        this.processBacklog = function () {
                while (this.backlog.length > 0) {
                        this.sendMessage(this.backlog.shift(), true);
                }
        };
        this.sendMessage = function (message, bypassBacklog) {
                if ((bypassBacklog) || (this.connected)) {
                        message.connectionId = this.connectionId;
                        message.clientId = cometd.clientId;
                        var bindArgs = {url:cometd.url || djConfig["cometdRoot"], method:"post", mimetype:"text/json", content:{message:dojo.json.serialize([message])}, load:dojo.lang.hitch(this, function (type, data, evt, args) {
                                cometd.deliver(data);
                        })};
                        return dojo.io.bind(bindArgs);
                } else {
                        this.backlog.push(message);
                }
        };
        this.startup = function (handshakeData) {
                if (this.connected) {
                        return;
                }
                this.tunnelInit();
        };
};
cometd.callbackPollTransport = new function () {
        this.connected = false;
        this.connectionId = null;
        this.authToken = null;
        this.lastTimestamp = null;
        this.lastId = null;
        this.backlog = [];
        this.check = function (types, version, xdomain) {
                return dojo.lang.inArray(types, "callback-polling");
        };
        this.tunnelInit = function () {
                if (this.connected) {
                        return;
                }
                this.openTunnelWith({message:dojo.json.serialize([{channel:"/meta/connect", clientId:cometd.clientId, connectionType:"callback-polling"}])});
                this.connected = true;
        };
        this.tunnelCollapse = function () {
                if (!this.connected) {
                        this.connected = false;
                        this.openTunnelWith({message:dojo.json.serialize([{channel:"/meta/reconnect", connectionType:"long-polling", clientId:cometd.clientId, connectionId:this.connectionId, timestamp:this.lastTimestamp, id:this.lastId}])});
                }
        };
        this.deliver = cometd.iframeTransport.deliver;
        this.openTunnelWith = function (content, url) {
                var req = dojo.io.bind({url:(url || cometd.url), content:content, mimetype:"text/json", transport:"ScriptSrcTransport", jsonParamName:"jsonp", load:dojo.lang.hitch(this, function (type, data, evt, args) {
                        cometd.deliver(data);
                        this.connected = false;
                        this.tunnelCollapse();
                }), error:function () {
                        dojo.debug("tunnel opening failed");
                }});
                this.connected = true;
        };
        this.processBacklog = function () {
                while (this.backlog.length > 0) {
                        this.sendMessage(this.backlog.shift(), true);
                }
        };
        this.sendMessage = function (message, bypassBacklog) {
                if ((bypassBacklog) || (this.connected)) {
                        message.connectionId = this.connectionId;
                        message.clientId = cometd.clientId;
                        var bindArgs = {url:cometd.url || djConfig["cometdRoot"], mimetype:"text/json", transport:"ScriptSrcTransport", jsonParamName:"jsonp", content:{message:dojo.json.serialize([message])}, load:dojo.lang.hitch(this, function (type, data, evt, args) {
                                cometd.deliver(data);
                        })};
                        return dojo.io.bind(bindArgs);
                } else {
                        this.backlog.push(message);
                }
        };
        this.startup = function (handshakeData) {
                if (this.connected) {
                        return;
                }
                this.tunnelInit();
        };
};
cometd.connectionTypes.register("mime-message-block", cometd.mimeReplaceTransport.check, cometd.mimeReplaceTransport);
cometd.connectionTypes.register("long-polling", cometd.longPollTransport.check, cometd.longPollTransport);
cometd.connectionTypes.register("callback-polling", cometd.callbackPollTransport.check, cometd.callbackPollTransport);
cometd.connectionTypes.register("iframe", cometd.iframeTransport.check, cometd.iframeTransport);
dojo.io.cometd = cometd;