cometd.js
资源名称:oa.rar [点击查看]
上传用户:kimgenplus
上传日期:2016-06-05
资源大小:20877k
文件大小:18k
源码类别:
OA系统
开发平台:
Java
- /*
- 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;