├── .gitignore
├── public
├── overlay
│ ├── youtube-live-chat-sample-avatar.png
│ ├── index.html
│ └── assets
│ │ ├── youtube-chat.css
│ │ ├── pushstream.js
│ │ └── jquery.js
└── index.html
├── README.md
└── LICENSE
/.gitignore:
--------------------------------------------------------------------------------
1 | .DS_Store
2 |
--------------------------------------------------------------------------------
/public/overlay/youtube-live-chat-sample-avatar.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/aaronpk/live-chat-overlay-remote/main/public/overlay/youtube-live-chat-sample-avatar.png
--------------------------------------------------------------------------------
/public/index.html:
--------------------------------------------------------------------------------
1 | aaronpk.tv
2 | Chrome Extension
3 | Source Code
4 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # Live Chat Overlay Remote Window
2 |
3 | The remote window for the [Live Chat Overlay](https://github.com/aaronpk/live-chat-overlay) browser extension.
4 |
5 | ## Setup
6 |
7 | You'll need to run this on nginx with the [nginx push-stream module](https://github.com/wandenberg/nginx-push-stream-module). Follow the [installation instructions](https://github.com/wandenberg/nginx-push-stream-module#installation-) to get the module running in your nginx before continuing below.
8 |
9 | ### Configuring nginx
10 |
11 | Once the push-stream module is installed, you can create a server block for this website.
12 |
13 | Download this entire repo into a folder such as `/web/sites/live-chat-overlay-remote`, and configure an nginx server block to point to the `public` folder in the repo. Enable the push-stream module publisher and subscriber using the configuration below.
14 |
15 | ```
16 | server {
17 | listen *:443 ssl http2;
18 | server_name chat.example.com;
19 |
20 | ssl_certificate /etc/letsencrypt/live/chat.example.com/fullchain.pem;
21 | ssl_certificate_key /etc/letsencrypt/live/chat.example.copm/privkey.pem;
22 |
23 | root /web/sites/live-chat-overlay-remote/public;
24 | index index.html;
25 |
26 | location /overlay/pub {
27 | add_header 'Access-Control-Allow-Origin' '*';
28 | push_stream_publisher admin;
29 | push_stream_channels_path $arg_id;
30 | }
31 |
32 | location /overlay/sub {
33 | add_header 'Access-Control-Allow-Origin' '*';
34 | push_stream_subscriber eventsource;
35 | push_stream_channels_path $arg_id;
36 | push_stream_message_template "{\"id\":~id~,\"channel\":\"~channel~\",\"text\":~text~}";
37 | push_stream_ping_message_interval 10s;
38 | }
39 |
40 | }
41 | ```
42 |
43 | That's it! No server-side code environment is needed as the project is static HTML and JavaScript.
44 |
45 | ### Browser Extension Configuration
46 |
47 | In your Live Chat Overlay extension, set the remote URL to the path of the "overlay" folder in this project, for example: `https://chat.example.com/overlay/`. The extension will use that full URL as the main browser source URL, and the extension will expect the `pub` path to exist where it will be pushing the chat messages to.
48 |
49 |
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/public/overlay/index.html:
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1 |
2 |
3 |
4 |
5 |
7 |
8 |
9 |
10 |
11 |
12 |
164 |
165 |
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/public/overlay/assets/youtube-chat.css:
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1 | :root {
2 | /* basic colors */
3 | --keyer-bg-color: transparent;
4 | --comment-color: #fff;
5 | --comment-bg-color: #222;
6 | --comment-border-radius: 0px;
7 | --comment-font-size: 40px;
8 | --author-color: #222;
9 | --author-bg-color: #09e6c1;
10 | --author-avatar-border-color: #09e6c1;
11 | --author-border-radius: 0px;
12 | --author-avatar-border-size: 3px;
13 | --author-avatar-size: 128px;
14 | --author-font-size: 30px;
15 | /* donation/superchat specific */
16 | --donation-color: #5a4211;
17 | --donation-bg-color: #fff;
18 | --donation-gradient-stop0: #BF953F;
19 | --donation-gradient-stop1: #ede599;
20 | --donation-gradient-stop2: #B38728;
21 | --donation-label-color: #fff;
22 | --donation-label-text: 'SUPERCHAT';
23 | --donation-shadow-color: #fff;
24 |
25 | --shown-comment-bg-color: #555555;
26 | --highlighted-comment-bg-color: #f0f07d;
27 |
28 | /*
29 | LAYOUT
30 | */
31 | --comment-width: auto; /* go 100% for a full screen lower third style*/
32 | --comment-padding: 20px 40px 20px 70px;
33 | --comment-area-height: 30vh;
34 | --comment-scale: 1;
35 | --comment-area-size-offset: 0;
36 | --comment-area-bottom: 10px;
37 | /*
38 | STYLE
39 | */
40 | --font-family: Avenir Next, Helvetica, Geneva, Verdana, Arial, sans-serif;
41 | --highlight-chat-font-weight: 600;
42 | --author-font-weight: 700;
43 | --comment-font-weight: 600;
44 | }
45 |
46 | body {
47 | background-color: var(--keyer-bg-color);
48 | }
49 | yt-live-chat-app {
50 | margin-bottom: var(--comment-area-height);
51 | height: 100vh !important;
52 | }
53 | .btn-clear {
54 | position: absolute;
55 | z-index: 99999;
56 | bottom: calc(var(--comment-area-height) + 60px);
57 | right: 20px;
58 | font-size: 30px;
59 | border: 1px #bbb solid;
60 | border-radius: 4px;
61 | color: #fff;
62 | background: #444;
63 | }
64 | .highlighted-comment {
65 | background-color: var(--highlighted-comment-bg-color) !important;
66 | }
67 | html[dark] .highlighted-comment #message.yt-live-chat-text-message-renderer {
68 | color: black;
69 | }
70 | html[dark] .highlighted-comment:hover #message.yt-live-chat-text-message-renderer {
71 | color: white;
72 | }
73 | html[dark] .highlighted-comment #author-name.yt-live-chat-author-chip {
74 | color: #444;
75 | }
76 | html[dark] .highlighted-comment:hover #author-name.yt-live-chat-author-chip {
77 | color: #DDD;
78 | }
79 | yt-live-chat-text-message-renderer:hover {
80 | background-color: #eee !important;
81 | }
82 | html[dark] yt-live-chat-text-message-renderer:hover {
83 | background-color: #444 !important;
84 | }
85 | yt-live-chat-text-message-renderer.shown-comment {
86 | background-color: var(--shown-comment-bg-color) !important;
87 | opacity: 0.4;
88 | }
89 | .shown-comment:hover {
90 | opacity: 0.5;
91 | }
92 | highlight-chat {
93 | font-family: var(--font-family);
94 | font-weight: var(--highlight-chat-font-weight);
95 | box-sizing: border-box;
96 | display: block;
97 | position: absolute;
98 | bottom: var(--comment-area-bottom);
99 | left: calc(var(--comment-area-size-offset) * -1px);
100 | right: calc(var(--comment-area-size-offset) * -1px);
101 | width: auto;
102 | height: var(--comment-area-height);
103 | z-index:99999999999;
104 | overflow: hidden;
105 | margin: 0px;
106 | padding: 40px 50px 40px 220px;
107 | background-color: var(--keyer-bg-color);
108 | color: #fff;
109 | font-size: 30px;
110 | transform: scale(var(--comment-scale));
111 | }
112 | highlight-chat.preview {
113 | border: 1px #ccc solid;
114 | }
115 | .hl-c-cont {
116 | position: relative;
117 | padding: 20px;
118 | width: 100%;
119 | margin: 0 auto;
120 | transition: .5s all cubic-bezier(0.250, 0.250, 0.105, 1.2);
121 | }
122 | .hl-c-cont.fadeout {
123 | transform: translateY(600px);
124 | }
125 |
126 | .hl-name {
127 | position: absolute;
128 | top: -20px;
129 | left: 50px;
130 | font-weight: var(--author-font-weight);
131 | background: var(--author-bg-color);
132 | color: var(--author-color);
133 | padding: 10px;
134 | transform: rotate(-0deg);
135 | z-index: 1;
136 | border-radius: var(--author-border-radius);
137 | font-size: var(--author-font-size);
138 | }
139 | .hl-message {
140 | position: absolute;
141 | width: var(--comment-width);
142 | font-weight: var(--comment-font-weight);
143 | padding: var(--comment-padding);
144 | color: var(--comment-color);
145 | background-color: var(--comment-bg-color);
146 | border-radius: var(--comment-border-radius);
147 | font-size: var(--comment-font-size);
148 | }
149 | .hl-message img {
150 | width: 50px;
151 | vertical-align: middle;
152 | }
153 | .hl-message a {
154 | color: white;
155 | }
156 | .hl-img {
157 | position: absolute;
158 | top: 0;
159 | z-index: 1;
160 | left: -60px;
161 | width: var(--author-avatar-size);
162 | height: var(--author-avatar-size);
163 | background-color: var(--author-avatar-border-color);
164 | border-radius: 50%;
165 | border: 0;
166 | padding: var(--author-avatar-border-size);
167 | }
168 | .hl-img img {
169 | display: block;
170 | width: 100%;
171 | border-radius: 50%;
172 | z-index: 1;
173 | }
174 | /* overlay a very faint white layer to bump the blacks above the luma key cutoff */
175 | .hl-img:after {
176 | content: '';
177 | display: block;
178 | height: 100%;
179 | width: 100%;
180 | top: 0;
181 | left: 0;
182 | border-radius: 50%;
183 | position:absolute;
184 | pointer-events: none;
185 | z-index: 3;
186 | }
187 | .hl-img::after {
188 | background: rgba(255,255,255,.04);
189 | mix-blend-mode: lighten;
190 | }
191 |
192 | .hl-badges {
193 | display: inline-block;
194 | margin-left: 10px;
195 | }
196 | .hl-badges img.yt-live-chat-author-badge-renderer {
197 | width: 24px;
198 | height: 24px;
199 | }
200 |
201 | .donation {
202 | position: absolute;
203 | display: block;
204 | text-align: center;
205 | left: 10px;
206 | top: 108px;
207 | z-index: 3;
208 | min-width: 128px;
209 | border-radius: 10px;
210 | padding: 30px 5px 0;
211 | overflow: hidden;
212 | background: linear-gradient(to right, var(--donation-gradient-stop0), var(--donation-gradient-stop1), var(--donation-gradient-stop2));
213 | color: var(--donation-color);
214 | transform: rotate(-5deg) translateX(-50%);
215 | }
216 | .membership {
217 | padding: 10px 10px 5px 10px;
218 | }
219 | .donation::before {
220 | position: absolute;
221 | top: 0;
222 | left: 0;
223 | width: 100%;
224 | font-size: 18px;
225 | text-align: center;
226 | background-color: rgba(0, 0, 0, 0.23);
227 | border-radius: 10px 10px 0 0;
228 | padding: 5px 0 0;
229 | display: block;
230 | content: var(--donation-label-text);
231 | color: var(--donation-label-color);
232 | }
233 | .membership::before {
234 | content: '';
235 | }
236 | .donation::after {
237 | content: '';
238 | position: absolute;
239 | top: -50%;
240 | left: 0;
241 | height: 200%;
242 | width: 1px;
243 | background-color: var(--donation-bg-color);
244 | box-shadow: 0 0 20px 20px var(--donation-shadow-color);
245 | opacity: 0.7;
246 | transform: rotate(9deg) translate3D(250px, 0, 0);
247 | animation: superchat 3s ease-in-out infinite;
248 | }
249 | @keyframes superchat {
250 | from {
251 | transform: rotate(9deg) translate3D(-250px, 0, 0);
252 | }
253 | }
254 |
255 | #tooltip.tp-yt-paper-tooltip {
256 | display: none;
257 | }
258 |
259 |
260 | /* hide chat input to give more space to the chat */
261 | /*
262 | #input-panel, yt-live-chat-viewer-engagement-message-renderer {
263 | display: none !important;
264 | }
265 | */
266 |
267 | yt-live-chat-item-list-renderer {
268 | margin-bottom: 20px;
269 | }
270 |
271 | yt-live-chat-text-message-renderer {
272 | font-size: 24px !important;
273 | line-height: 32px;
274 | }
275 |
276 |
277 | yt-live-chat-text-message-renderer,
278 | yt-live-chat-paid-message-renderer,
279 | yt-live-chat-membership-item-renderer {
280 | cursor: pointer;
281 | }
282 |
283 | yt-live-chat-text-message-renderer[is-deleted],
284 | yt-live-chat-paid-message-renderer[is-deleted],
285 | yt-live-chat-membership-item-renderer[is-deleted] {
286 | cursor: default;
287 | }
288 |
--------------------------------------------------------------------------------
/LICENSE:
--------------------------------------------------------------------------------
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/public/overlay/assets/pushstream.js:
--------------------------------------------------------------------------------
1 | /*global PushStream WebSocketWrapper EventSourceWrapper EventSource*/
2 | /*jshint evil: true, plusplus: false, regexp: false */
3 | /**
4 | The MIT License (MIT)
5 |
6 | Copyright (c) 2010-2014 Wandenberg Peixoto , Rogério Carvalho Schneider
7 |
8 | This file is part of Nginx Push Stream Module.
9 |
10 | Permission is hereby granted, free of charge, to any person obtaining a copy
11 | of this software and associated documentation files (the "Software"), to deal
12 | in the Software without restriction, including without limitation the rights
13 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
14 | copies of the Software, and to permit persons to whom the Software is
15 | furnished to do so, subject to the following conditions:
16 |
17 | The above copyright notice and this permission notice shall be included in all
18 | copies or substantial portions of the Software.
19 |
20 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
21 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
22 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
23 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
24 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
25 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
26 | SOFTWARE.
27 |
28 | pushstream.js
29 |
30 | Created: Nov 01, 2011
31 | Authors: Wandenberg Peixoto , Rogério Carvalho Schneider
32 | */
33 | (function (window, document, undefined) {
34 | "use strict";
35 |
36 | /* prevent duplicate declaration */
37 | if (window.PushStream) { return; }
38 |
39 | var Utils = {};
40 |
41 | var days = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"];
42 | var months = ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"];
43 |
44 | var valueToTwoDigits = function (value) {
45 | return ((value < 10) ? '0' : '') + value;
46 | };
47 |
48 | Utils.dateToUTCString = function (date) {
49 | var time = valueToTwoDigits(date.getUTCHours()) + ':' + valueToTwoDigits(date.getUTCMinutes()) + ':' + valueToTwoDigits(date.getUTCSeconds());
50 | return days[date.getUTCDay()] + ', ' + valueToTwoDigits(date.getUTCDate()) + ' ' + months[date.getUTCMonth()] + ' ' + date.getUTCFullYear() + ' ' + time + ' GMT';
51 | };
52 |
53 | var extend = function () {
54 | var object = arguments[0] || {};
55 | for (var i = 0; i < arguments.length; i++) {
56 | var settings = arguments[i];
57 | for (var attr in settings) {
58 | if (!settings.hasOwnProperty || settings.hasOwnProperty(attr)) {
59 | object[attr] = settings[attr];
60 | }
61 | }
62 | }
63 | return object;
64 | };
65 |
66 | var validChars = /^[\],:{}\s]*$/,
67 | validEscape = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g,
68 | validTokens = /"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,
69 | validBraces = /(?:^|:|,)(?:\s*\[)+/g;
70 |
71 | var trim = function(value) {
72 | return value.replace(/^\s*/, "").replace(/\s*$/, "");
73 | };
74 |
75 | Utils.parseJSON = function(data) {
76 | if (!data || !isString(data)) {
77 | return null;
78 | }
79 |
80 | // Make sure leading/trailing whitespace is removed (IE can't handle it)
81 | data = trim(data);
82 |
83 | // Attempt to parse using the native JSON parser first
84 | if (window.JSON && window.JSON.parse) {
85 | try {
86 | return window.JSON.parse( data );
87 | } catch(e) {
88 | throw "Invalid JSON: " + data;
89 | }
90 | }
91 |
92 | // Make sure the incoming data is actual JSON
93 | // Logic borrowed from http://json.org/json2.js
94 | if (validChars.test(data.replace(validEscape, "@").replace( validTokens, "]").replace( validBraces, "")) ) {
95 | return (new Function("return " + data))();
96 | }
97 |
98 | throw "Invalid JSON: " + data;
99 | };
100 |
101 | var getControlParams = function(pushstream) {
102 | var data = {};
103 | data[pushstream.tagArgument] = "";
104 | data[pushstream.timeArgument] = "";
105 | data[pushstream.eventIdArgument] = "";
106 | if (pushstream.messagesControlByArgument) {
107 | data[pushstream.tagArgument] = Number(pushstream._etag);
108 | if (pushstream._lastModified) {
109 | data[pushstream.timeArgument] = pushstream._lastModified;
110 | } else if (pushstream._lastEventId) {
111 | data[pushstream.eventIdArgument] = pushstream._lastEventId;
112 | }
113 | }
114 | return data;
115 | };
116 |
117 | var getTime = function() {
118 | return (new Date()).getTime();
119 | };
120 |
121 | var currentTimestampParam = function() {
122 | return { "_" : getTime() };
123 | };
124 |
125 | var objectToUrlParams = function(settings) {
126 | var params = settings;
127 | if (typeof(settings) === 'object') {
128 | params = '';
129 | for (var attr in settings) {
130 | if (!settings.hasOwnProperty || settings.hasOwnProperty(attr)) {
131 | params += '&' + attr + '=' + window.escape(settings[attr]);
132 | }
133 | }
134 | params = params.substring(1);
135 | }
136 |
137 | return params || '';
138 | };
139 |
140 | var addParamsToUrl = function(url, params) {
141 | return url + ((url.indexOf('?') < 0) ? '?' : '&') + objectToUrlParams(params);
142 | };
143 |
144 | var isArray = Array.isArray || function(obj) {
145 | return Object.prototype.toString.call(obj) === '[object Array]';
146 | };
147 |
148 | var isString = function(obj) {
149 | return Object.prototype.toString.call(obj) === '[object String]';
150 | };
151 |
152 | var isDate = function(obj) {
153 | return Object.prototype.toString.call(obj) === '[object Date]';
154 | };
155 |
156 | var Log4js = {
157 | logger: null,
158 | debug : function() { if (PushStream.LOG_LEVEL === 'debug') { Log4js._log.apply(Log4js._log, arguments); }},
159 | info : function() { if ((PushStream.LOG_LEVEL === 'info') || (PushStream.LOG_LEVEL === 'debug')) { Log4js._log.apply(Log4js._log, arguments); }},
160 | error : function() { Log4js._log.apply(Log4js._log, arguments); },
161 | _initLogger : function() {
162 | var console = window.console;
163 | if (console && console.log) {
164 | if (console.log.apply) {
165 | Log4js.logger = console.log;
166 | } else if ((typeof console.log === "object") && Function.prototype.bind) {
167 | Log4js.logger = Function.prototype.bind.call(console.log, console);
168 | } else if ((typeof console.log === "object") && Function.prototype.call) {
169 | Log4js.logger = function() {
170 | Function.prototype.call.call(console.log, console, Array.prototype.slice.call(arguments));
171 | };
172 | }
173 | }
174 | },
175 | _log : function() {
176 | if (!Log4js.logger) {
177 | Log4js._initLogger();
178 | }
179 |
180 | if (Log4js.logger) {
181 | try {
182 | Log4js.logger.apply(window.console, arguments);
183 | } catch(e) {
184 | Log4js._initLogger();
185 | if (Log4js.logger) {
186 | Log4js.logger.apply(window.console, arguments);
187 | }
188 | }
189 | }
190 |
191 | var logElement = document.getElementById(PushStream.LOG_OUTPUT_ELEMENT_ID);
192 | if (logElement) {
193 | var str = '';
194 | for (var i = 0; i < arguments.length; i++) {
195 | str += arguments[i] + " ";
196 | }
197 | logElement.innerHTML += str + '\n';
198 |
199 | var lines = logElement.innerHTML.split('\n');
200 | if (lines.length > 100) {
201 | logElement.innerHTML = lines.slice(-100).join('\n');
202 | }
203 | }
204 | }
205 | };
206 |
207 | var Ajax = {
208 | _getXHRObject : function(crossDomain) {
209 | var xhr = false;
210 | if (crossDomain) {
211 | try { xhr = new window.XDomainRequest(); } catch (e) { }
212 | if (xhr) {
213 | return xhr;
214 | }
215 | }
216 |
217 | try { xhr = new window.XMLHttpRequest(); }
218 | catch (e1) {
219 | try { xhr = new window.ActiveXObject("Msxml2.XMLHTTP"); }
220 | catch (e2) {
221 | try { xhr = new window.ActiveXObject("Microsoft.XMLHTTP"); }
222 | catch (e3) {
223 | xhr = false;
224 | }
225 | }
226 | }
227 | return xhr;
228 | },
229 |
230 | _send : function(settings, post) {
231 | settings = settings || {};
232 | settings.timeout = settings.timeout || 30000;
233 | var xhr = Ajax._getXHRObject(settings.crossDomain);
234 | if (!xhr||!settings.url) { return; }
235 |
236 | Ajax.clear(settings);
237 |
238 | settings.xhr = xhr;
239 |
240 | if (window.XDomainRequest && (xhr instanceof window.XDomainRequest)) {
241 | xhr.onload = function () {
242 | if (settings.afterReceive) { settings.afterReceive(xhr); }
243 | if (settings.success) { settings.success(xhr.responseText); }
244 | };
245 |
246 | xhr.onerror = xhr.ontimeout = function () {
247 | if (settings.afterReceive) { settings.afterReceive(xhr); }
248 | if (settings.error) { settings.error(xhr.status); }
249 | };
250 | } else {
251 | xhr.onreadystatechange = function () {
252 | if (xhr.readyState === 4) {
253 | Ajax.clear(settings);
254 | if (settings.afterReceive) { settings.afterReceive(xhr); }
255 | if(xhr.status === 200) {
256 | if (settings.success) { settings.success(xhr.responseText); }
257 | } else {
258 | if (settings.error) { settings.error(xhr.status); }
259 | }
260 | }
261 | };
262 | }
263 |
264 | if (settings.beforeOpen) { settings.beforeOpen(xhr); }
265 |
266 | var params = {};
267 | var body = null;
268 | var method = "GET";
269 | if (post) {
270 | body = objectToUrlParams(settings.data);
271 | method = "POST";
272 | } else {
273 | params = settings.data || {};
274 | }
275 |
276 | xhr.open(method, addParamsToUrl(settings.url, extend({}, params, currentTimestampParam())), true);
277 |
278 | if (settings.beforeSend) { settings.beforeSend(xhr); }
279 |
280 | var onerror = function() {
281 | Ajax.clear(settings);
282 | try { xhr.abort(); } catch (e) { /* ignore error on closing */ }
283 | settings.error(304);
284 | };
285 |
286 | if (post) {
287 | if (xhr.setRequestHeader) {
288 | xhr.setRequestHeader("Accept", "application/json");
289 | xhr.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
290 | }
291 | } else {
292 | settings.timeoutId = window.setTimeout(onerror, settings.timeout + 2000);
293 | }
294 |
295 | xhr.send(body);
296 | return xhr;
297 | },
298 |
299 | _clear_xhr : function(xhr) {
300 | if (xhr) {
301 | xhr.onreadystatechange = null;
302 | }
303 | },
304 |
305 | _clear_script : function(script) {
306 | // Handling memory leak in IE, removing and dereference the script
307 | if (script) {
308 | script.onerror = script.onload = script.onreadystatechange = null;
309 | if (script.parentNode) { script.parentNode.removeChild(script); }
310 | }
311 | },
312 |
313 | _clear_timeout : function(settings) {
314 | settings.timeoutId = clearTimer(settings.timeoutId);
315 | },
316 |
317 | _clear_jsonp : function(settings) {
318 | var callbackFunctionName = settings.data.callback;
319 | if (callbackFunctionName) {
320 | window[callbackFunctionName] = function() { window[callbackFunctionName] = null; };
321 | }
322 | },
323 |
324 | clear : function(settings) {
325 | Ajax._clear_timeout(settings);
326 | Ajax._clear_jsonp(settings);
327 | Ajax._clear_script(document.getElementById(settings.scriptId));
328 | Ajax._clear_xhr(settings.xhr);
329 | },
330 |
331 | jsonp : function(settings) {
332 | settings.timeout = settings.timeout || 30000;
333 | Ajax.clear(settings);
334 |
335 | var head = document.head || document.getElementsByTagName("head")[0];
336 | var script = document.createElement("script");
337 | var startTime = getTime();
338 |
339 | var onerror = function() {
340 | Ajax.clear(settings);
341 | var endTime = getTime();
342 | settings.error(((endTime - startTime) > settings.timeout/2) ? 304 : 403);
343 | };
344 |
345 | var onload = function() {
346 | Ajax.clear(settings);
347 | settings.load();
348 | };
349 |
350 | var onsuccess = function() {
351 | settings.afterSuccess = true;
352 | settings.success.apply(null, arguments);
353 | };
354 |
355 | script.onerror = onerror;
356 | script.onload = script.onreadystatechange = function(eventLoad) {
357 | if (!script.readyState || /loaded|complete/.test(script.readyState)) {
358 | if (settings.afterSuccess) {
359 | onload();
360 | } else {
361 | onerror();
362 | }
363 | }
364 | };
365 |
366 | if (settings.beforeOpen) { settings.beforeOpen({}); }
367 | if (settings.beforeSend) { settings.beforeSend({}); }
368 |
369 | settings.timeoutId = window.setTimeout(onerror, settings.timeout + 2000);
370 | settings.scriptId = settings.scriptId || getTime();
371 | settings.afterSuccess = null;
372 |
373 | settings.data.callback = settings.scriptId + "_onmessage_" + getTime();
374 | window[settings.data.callback] = onsuccess;
375 |
376 | script.setAttribute("src", addParamsToUrl(settings.url, extend({}, settings.data, currentTimestampParam())));
377 | script.setAttribute("async", "async");
378 | script.setAttribute("id", settings.scriptId);
379 |
380 | // Use insertBefore instead of appendChild to circumvent an IE6 bug.
381 | head.insertBefore(script, head.firstChild);
382 | return settings;
383 | },
384 |
385 | load : function(settings) {
386 | return Ajax._send(settings, false);
387 | },
388 |
389 | post : function(settings) {
390 | return Ajax._send(settings, true);
391 | }
392 | };
393 |
394 | var escapeText = function(text) {
395 | return (text) ? window.escape(text) : '';
396 | };
397 |
398 | var unescapeText = function(text) {
399 | return (text) ? window.unescape(text) : '';
400 | };
401 |
402 | Utils.parseMessage = function(messageText, keys) {
403 | var msg = messageText;
404 | if (isString(messageText)) {
405 | msg = Utils.parseJSON(messageText);
406 | }
407 | var message = {
408 | id : msg[keys.jsonIdKey],
409 | channel: msg[keys.jsonChannelKey],
410 | text : isString(msg[keys.jsonTextKey]) ? unescapeText(msg[keys.jsonTextKey]) : msg[keys.jsonTextKey],
411 | tag : msg[keys.jsonTagKey],
412 | time : msg[keys.jsonTimeKey],
413 | eventid: msg[keys.jsonEventIdKey] || ""
414 | };
415 |
416 | return message;
417 | };
418 |
419 | var getBacktrack = function(options) {
420 | return (options.backtrack) ? ".b" + Number(options.backtrack) : "";
421 | };
422 |
423 | var getChannelsPath = function(channels, withBacktrack) {
424 | var path = '';
425 | for (var channelName in channels) {
426 | if (!channels.hasOwnProperty || channels.hasOwnProperty(channelName)) {
427 | path += "/" + channelName + (withBacktrack ? getBacktrack(channels[channelName]) : "");
428 | }
429 | }
430 | return path;
431 | };
432 |
433 | var getSubscriberUrl = function(pushstream, prefix, extraParams, withBacktrack) {
434 | var websocket = pushstream.wrapper.type === WebSocketWrapper.TYPE;
435 | var useSSL = pushstream.useSSL;
436 | var port = normalizePort(useSSL, pushstream.port);
437 | var url = (websocket) ? ((useSSL) ? "wss://" : "ws://") : ((useSSL) ? "https://" : "http://");
438 | url += pushstream.host;
439 | url += (port ? (":" + port) : "");
440 | url += prefix;
441 |
442 | var channels = getChannelsPath(pushstream.channels, withBacktrack);
443 | if (pushstream.channelsByArgument) {
444 | var channelParam = {};
445 | channelParam[pushstream.channelsArgument] = channels.substring(1);
446 | extraParams = extend({}, extraParams, channelParam);
447 | } else {
448 | url += channels;
449 | }
450 | return addParamsToUrl(url, extraParams);
451 | };
452 |
453 | var getPublisherUrl = function(pushstream) {
454 | var port = normalizePort(pushstream.useSSL, pushstream.port);
455 | var url = (pushstream.useSSL) ? "https://" : "http://";
456 | url += pushstream.host;
457 | url += (port ? (":" + port) : "");
458 | url += pushstream.urlPrefixPublisher;
459 | url += "?id=" + getChannelsPath(pushstream.channels, false);
460 |
461 | return url;
462 | };
463 |
464 | Utils.extract_xss_domain = function(domain) {
465 | // if domain is an ip address return it, else return ate least the last two parts of it
466 | if (domain.match(/^(\d{1,3}\.){3}\d{1,3}$/)) {
467 | return domain;
468 | }
469 |
470 | var domainParts = domain.split('.');
471 | // if the domain ends with 3 chars or 2 chars preceded by more than 4 chars,
472 | // we can keep only 2 parts, else we have to keep at least 3 (or all domain name)
473 | var keepNumber = Math.max(domainParts.length - 1, (domain.match(/(\w{4,}\.\w{2}|\.\w{3,})$/) ? 2 : 3));
474 |
475 | return domainParts.slice(-1 * keepNumber).join('.');
476 | };
477 |
478 | var normalizePort = function (useSSL, port) {
479 | port = Number(port || (useSSL ? 443 : 80));
480 | return ((!useSSL && port === 80) || (useSSL && port === 443)) ? "" : port;
481 | };
482 |
483 | Utils.isCrossDomainUrl = function(url) {
484 | if (!url) {
485 | return false;
486 | }
487 |
488 | var parser = document.createElement('a');
489 | parser.href = url;
490 |
491 | var srcPort = normalizePort(window.location.protocol === "https:", window.location.port);
492 | var dstPort = normalizePort(parser.protocol === "https:", parser.port);
493 |
494 | return (window.location.protocol !== parser.protocol) ||
495 | (window.location.hostname !== parser.hostname) ||
496 | (srcPort !== dstPort);
497 | };
498 |
499 | var linker = function(method, instance) {
500 | return function() {
501 | return method.apply(instance, arguments);
502 | };
503 | };
504 |
505 | var clearTimer = function(timer) {
506 | if (timer) {
507 | window.clearTimeout(timer);
508 | }
509 | return null;
510 | };
511 |
512 | /* common callbacks */
513 | var onmessageCallback = function(event) {
514 | Log4js.info("[" + this.type + "] message received", arguments);
515 | var message = Utils.parseMessage(event.data, this.pushstream);
516 | if (message.tag) { this.pushstream._etag = message.tag; }
517 | if (message.time) { this.pushstream._lastModified = message.time; }
518 | if (message.eventid) { this.pushstream._lastEventId = message.eventid; }
519 | this.pushstream._onmessage(message.text, message.id, message.channel, message.eventid, true);
520 | };
521 |
522 | var onopenCallback = function() {
523 | this.pushstream._onopen();
524 | Log4js.info("[" + this.type + "] connection opened");
525 | };
526 |
527 | var onerrorCallback = function(event) {
528 | Log4js.info("[" + this.type + "] error (disconnected by server):", event);
529 | if ((this.pushstream.readyState === PushStream.OPEN) &&
530 | (this.type === EventSourceWrapper.TYPE) &&
531 | (event.type === 'error') &&
532 | (this.connection.readyState === window.EventSource.CONNECTING)) {
533 | // EventSource already has a reconnection function using the last-event-id header
534 | return;
535 | }
536 | this._closeCurrentConnection();
537 | this.pushstream._onerror({type: ((event && ((event.type === "load") || (event.type === "close"))) || (this.pushstream.readyState === PushStream.CONNECTING)) ? "load" : "timeout"});
538 | };
539 |
540 | /* wrappers */
541 |
542 | var WebSocketWrapper = function(pushstream) {
543 | if (!window.WebSocket && !window.MozWebSocket) { throw "WebSocket not supported"; }
544 | this.type = WebSocketWrapper.TYPE;
545 | this.pushstream = pushstream;
546 | this.connection = null;
547 | };
548 |
549 | WebSocketWrapper.TYPE = "WebSocket";
550 |
551 | WebSocketWrapper.prototype = {
552 | connect: function() {
553 | this._closeCurrentConnection();
554 | var params = extend({}, this.pushstream.extraParams(), currentTimestampParam(), getControlParams(this.pushstream));
555 | var url = getSubscriberUrl(this.pushstream, this.pushstream.urlPrefixWebsocket, params, !this.pushstream._useControlArguments());
556 | this.connection = (window.WebSocket) ? new window.WebSocket(url) : new window.MozWebSocket(url);
557 | this.connection.onerror = linker(onerrorCallback, this);
558 | this.connection.onclose = linker(onerrorCallback, this);
559 | this.connection.onopen = linker(onopenCallback, this);
560 | this.connection.onmessage = linker(onmessageCallback, this);
561 | Log4js.info("[WebSocket] connecting to:", url);
562 | },
563 |
564 | disconnect: function() {
565 | if (this.connection) {
566 | Log4js.debug("[WebSocket] closing connection to:", this.connection.url);
567 | this.connection.onclose = null;
568 | this._closeCurrentConnection();
569 | this.pushstream._onclose();
570 | }
571 | },
572 |
573 | _closeCurrentConnection: function() {
574 | if (this.connection) {
575 | try { this.connection.close(); } catch (e) { /* ignore error on closing */ }
576 | this.connection = null;
577 | }
578 | },
579 |
580 | sendMessage: function(message) {
581 | if (this.connection) { this.connection.send(message); }
582 | }
583 | };
584 |
585 | var EventSourceWrapper = function(pushstream) {
586 | if (!window.EventSource) { throw "EventSource not supported"; }
587 | this.type = EventSourceWrapper.TYPE;
588 | this.pushstream = pushstream;
589 | this.connection = null;
590 | };
591 |
592 | EventSourceWrapper.TYPE = "EventSource";
593 |
594 | EventSourceWrapper.prototype = {
595 | connect: function() {
596 | this._closeCurrentConnection();
597 | var params = extend({}, this.pushstream.extraParams(), currentTimestampParam(), getControlParams(this.pushstream));
598 | var url = getSubscriberUrl(this.pushstream, this.pushstream.urlPrefixEventsource, params, !this.pushstream._useControlArguments());
599 | this.connection = new window.EventSource(url);
600 | this.connection.onerror = linker(onerrorCallback, this);
601 | this.connection.onopen = linker(onopenCallback, this);
602 | this.connection.onmessage = linker(onmessageCallback, this);
603 | Log4js.info("[EventSource] connecting to:", url);
604 | },
605 |
606 | disconnect: function() {
607 | if (this.connection) {
608 | Log4js.debug("[EventSource] closing connection to:", this.connection.url);
609 | this.connection.onclose = null;
610 | this._closeCurrentConnection();
611 | this.pushstream._onclose();
612 | }
613 | },
614 |
615 | _closeCurrentConnection: function() {
616 | if (this.connection) {
617 | try { this.connection.close(); } catch (e) { /* ignore error on closing */ }
618 | this.connection = null;
619 | }
620 | }
621 | };
622 |
623 | var StreamWrapper = function(pushstream) {
624 | this.type = StreamWrapper.TYPE;
625 | this.pushstream = pushstream;
626 | this.connection = null;
627 | this.url = null;
628 | this.frameloadtimer = null;
629 | this.pingtimer = null;
630 | this.iframeId = "PushStreamManager_" + pushstream.id;
631 | };
632 |
633 | StreamWrapper.TYPE = "Stream";
634 |
635 | StreamWrapper.prototype = {
636 | connect: function() {
637 | this._closeCurrentConnection();
638 | var domain = Utils.extract_xss_domain(this.pushstream.host);
639 | try {
640 | document.domain = domain;
641 | } catch(e) {
642 | Log4js.error("[Stream] (warning) problem setting document.domain = " + domain + " (OBS: IE8 does not support set IP numbers as domain)");
643 | }
644 | var params = extend({}, this.pushstream.extraParams(), currentTimestampParam(), {"streamid": this.pushstream.id}, getControlParams(this.pushstream));
645 | this.url = getSubscriberUrl(this.pushstream, this.pushstream.urlPrefixStream, params, !this.pushstream._useControlArguments());
646 | Log4js.debug("[Stream] connecting to:", this.url);
647 | this.loadFrame(this.url);
648 | },
649 |
650 | disconnect: function() {
651 | if (this.connection) {
652 | Log4js.debug("[Stream] closing connection to:", this.url);
653 | this._closeCurrentConnection();
654 | this.pushstream._onclose();
655 | }
656 | },
657 |
658 | _clear_iframe: function() {
659 | var oldIframe = document.getElementById(this.iframeId);
660 | if (oldIframe) {
661 | oldIframe.onload = null;
662 | oldIframe.src = "about:blank";
663 | if (oldIframe.parentNode) { oldIframe.parentNode.removeChild(oldIframe); }
664 | }
665 | },
666 |
667 | _closeCurrentConnection: function() {
668 | this._clear_iframe();
669 | if (this.connection) {
670 | this.pingtimer = clearTimer(this.pingtimer);
671 | this.frameloadtimer = clearTimer(this.frameloadtimer);
672 | this.connection = null;
673 | this.transferDoc = null;
674 | if (typeof window.CollectGarbage === 'function') { window.CollectGarbage(); }
675 | }
676 | },
677 |
678 | loadFrame: function(url) {
679 | this._clear_iframe();
680 |
681 | var ifr = null;
682 | if ("ActiveXObject" in window) {
683 | var transferDoc = new window.ActiveXObject("htmlfile");
684 | transferDoc.open();
685 | transferDoc.write("");
686 | transferDoc.parentWindow.PushStream = PushStream;
687 | transferDoc.close();
688 | ifr = transferDoc.getElementById(this.iframeId);
689 | this.transferDoc = transferDoc;
690 | } else {
691 | ifr = document.createElement("IFRAME");
692 | ifr.style.width = "1px";
693 | ifr.style.height = "1px";
694 | ifr.style.border = "none";
695 | ifr.style.position = "absolute";
696 | ifr.style.top = "-10px";
697 | ifr.style.marginTop = "-10px";
698 | ifr.style.zIndex = "-20";
699 | ifr.PushStream = PushStream;
700 | document.body.appendChild(ifr);
701 | ifr.setAttribute("src", url);
702 | ifr.setAttribute("id", this.iframeId);
703 | }
704 |
705 | ifr.onload = linker(onerrorCallback, this);
706 | this.connection = ifr;
707 | this.frameloadtimer = window.setTimeout(linker(onerrorCallback, this), this.pushstream.timeout);
708 | },
709 |
710 | register: function(iframeWindow) {
711 | this.frameloadtimer = clearTimer(this.frameloadtimer);
712 | iframeWindow.p = linker(this.process, this);
713 | this.connection.onload = linker(this._onframeloaded, this);
714 | this.pushstream._onopen();
715 | this.setPingTimer();
716 | Log4js.info("[Stream] frame registered");
717 | },
718 |
719 | process: function(id, channel, text, eventid, time, tag) {
720 | this.pingtimer = clearTimer(this.pingtimer);
721 | Log4js.info("[Stream] message received", arguments);
722 | if (id !== -1) {
723 | if (tag) { this.pushstream._etag = tag; }
724 | if (time) { this.pushstream._lastModified = time; }
725 | if (eventid) { this.pushstream._lastEventId = eventid; }
726 | }
727 | this.pushstream._onmessage(unescapeText(text), id, channel, eventid || "", true);
728 | this.setPingTimer();
729 | },
730 |
731 | _onframeloaded: function() {
732 | Log4js.info("[Stream] frame loaded (disconnected by server)");
733 | this.connection.onload = null;
734 | this.disconnect();
735 | },
736 |
737 | setPingTimer: function() {
738 | if (this.pingtimer) { clearTimer(this.pingtimer); }
739 | this.pingtimer = window.setTimeout(linker(onerrorCallback, this), this.pushstream.pingtimeout);
740 | }
741 | };
742 |
743 | var LongPollingWrapper = function(pushstream) {
744 | this.type = LongPollingWrapper.TYPE;
745 | this.pushstream = pushstream;
746 | this.connection = null;
747 | this.opentimer = null;
748 | this.messagesQueue = [];
749 | this._linkedInternalListen = linker(this._internalListen, this);
750 | this.xhrSettings = {
751 | timeout: this.pushstream.timeout,
752 | data: {},
753 | url: null,
754 | success: linker(this.onmessage, this),
755 | error: linker(this.onerror, this),
756 | load: linker(this.onload, this),
757 | beforeSend: linker(this.beforeSend, this),
758 | afterReceive: linker(this.afterReceive, this)
759 | };
760 | };
761 |
762 | LongPollingWrapper.TYPE = "LongPolling";
763 |
764 | LongPollingWrapper.prototype = {
765 | connect: function() {
766 | this.messagesQueue = [];
767 | this._closeCurrentConnection();
768 | this.urlWithBacktrack = getSubscriberUrl(this.pushstream, this.pushstream.urlPrefixLongpolling, {}, true);
769 | this.urlWithoutBacktrack = getSubscriberUrl(this.pushstream, this.pushstream.urlPrefixLongpolling, {}, false);
770 | this.xhrSettings.url = this.urlWithBacktrack;
771 | this.useJSONP = this.pushstream._crossDomain || this.pushstream.useJSONP;
772 | this.xhrSettings.scriptId = "PushStreamManager_" + this.pushstream.id;
773 | if (this.useJSONP) {
774 | this.pushstream.messagesControlByArgument = true;
775 | }
776 | this._listen();
777 | this.opentimer = window.setTimeout(linker(onopenCallback, this), 150);
778 | Log4js.info("[LongPolling] connecting to:", this.xhrSettings.url);
779 | },
780 |
781 | _listen: function() {
782 | if (this._internalListenTimeout) { clearTimer(this._internalListenTimeout); }
783 | this._internalListenTimeout = window.setTimeout(this._linkedInternalListen, 100);
784 | },
785 |
786 | _internalListen: function() {
787 | if (this.pushstream._keepConnected) {
788 | this.xhrSettings.url = this.pushstream._useControlArguments() ? this.urlWithoutBacktrack : this.urlWithBacktrack;
789 | this.xhrSettings.data = extend({}, this.pushstream.extraParams(), this.xhrSettings.data, getControlParams(this.pushstream));
790 | if (this.useJSONP) {
791 | this.connection = Ajax.jsonp(this.xhrSettings);
792 | } else if (!this.connection) {
793 | this.connection = Ajax.load(this.xhrSettings);
794 | }
795 | }
796 | },
797 |
798 | disconnect: function() {
799 | if (this.connection) {
800 | Log4js.debug("[LongPolling] closing connection to:", this.xhrSettings.url);
801 | this._closeCurrentConnection();
802 | this.pushstream._onclose();
803 | }
804 | },
805 |
806 | _closeCurrentConnection: function() {
807 | this.opentimer = clearTimer(this.opentimer);
808 | if (this.connection) {
809 | try { this.connection.abort(); } catch (e) {
810 | try { Ajax.clear(this.connection); } catch (e1) { /* ignore error on closing */ }
811 | }
812 | this.connection = null;
813 | this.xhrSettings.url = null;
814 | }
815 | },
816 |
817 | beforeSend: function(xhr) {
818 | if (!this.pushstream.messagesControlByArgument) {
819 | xhr.setRequestHeader("If-None-Match", this.pushstream._etag);
820 | xhr.setRequestHeader("If-Modified-Since", this.pushstream._lastModified);
821 | }
822 | },
823 |
824 | afterReceive: function(xhr) {
825 | if (!this.pushstream.messagesControlByArgument) {
826 | this.pushstream._etag = xhr.getResponseHeader('Etag');
827 | this.pushstream._lastModified = xhr.getResponseHeader('Last-Modified');
828 | }
829 | this.connection = null;
830 | },
831 |
832 | onerror: function(status) {
833 | this._closeCurrentConnection();
834 | if (this.pushstream._keepConnected) { /* abort(), called by disconnect(), call this callback, but should be ignored */
835 | if (status === 304) {
836 | this._listen();
837 | } else {
838 | Log4js.info("[LongPolling] error (disconnected by server):", status);
839 | this.pushstream._onerror({type: ((status === 403) || (this.pushstream.readyState === PushStream.CONNECTING)) ? "load" : "timeout"});
840 | }
841 | }
842 | },
843 |
844 | onload: function() {
845 | this._listen();
846 | },
847 |
848 | onmessage: function(responseText) {
849 | if (this._internalListenTimeout) { clearTimer(this._internalListenTimeout); }
850 | Log4js.info("[LongPolling] message received", responseText);
851 | var lastMessage = null;
852 | var messages = isArray(responseText) ? responseText : responseText.replace(/\}\{/g, "}\r\n{").split("\r\n");
853 | for (var i = 0; i < messages.length; i++) {
854 | if (messages[i]) {
855 | lastMessage = Utils.parseMessage(messages[i], this.pushstream);
856 | this.messagesQueue.push(lastMessage);
857 | if (this.pushstream.messagesControlByArgument && lastMessage.time) {
858 | this.pushstream._etag = lastMessage.tag;
859 | this.pushstream._lastModified = lastMessage.time;
860 | }
861 | }
862 | }
863 |
864 | this._listen();
865 |
866 | while (this.messagesQueue.length > 0) {
867 | var message = this.messagesQueue.shift();
868 | this.pushstream._onmessage(message.text, message.id, message.channel, message.eventid, (this.messagesQueue.length === 0));
869 | }
870 | }
871 | };
872 |
873 | /* mains class */
874 |
875 | var PushStreamManager = [];
876 |
877 | var PushStream = function(settings) {
878 | settings = settings || {};
879 |
880 | this.id = PushStreamManager.push(this) - 1;
881 |
882 | this.useSSL = settings.useSSL || false;
883 | this.host = settings.host || window.location.hostname;
884 | this.port = Number(settings.port || (this.useSSL ? 443 : 80));
885 |
886 | this.timeout = settings.timeout || 30000;
887 | this.pingtimeout = settings.pingtimeout || 30000;
888 | this.reconnectOnTimeoutInterval = settings.reconnectOnTimeoutInterval || 3000;
889 | this.reconnectOnChannelUnavailableInterval = settings.reconnectOnChannelUnavailableInterval || 60000;
890 |
891 | this.lastEventId = settings.lastEventId || null;
892 | this.messagesPublishedAfter = settings.messagesPublishedAfter;
893 | this.messagesControlByArgument = settings.messagesControlByArgument || false;
894 | this.tagArgument = settings.tagArgument || 'tag';
895 | this.timeArgument = settings.timeArgument || 'time';
896 | this.eventIdArgument = settings.eventIdArgument || 'eventid';
897 | this.useJSONP = settings.useJSONP || false;
898 |
899 | this._reconnecttimer = null;
900 | this._etag = 0;
901 | this._lastModified = null;
902 | this._lastEventId = null;
903 |
904 | this.urlPrefixPublisher = settings.urlPrefixPublisher || '/pub';
905 | this.urlPrefixStream = settings.urlPrefixStream || '/sub';
906 | this.urlPrefixEventsource = settings.urlPrefixEventsource || '/ev';
907 | this.urlPrefixLongpolling = settings.urlPrefixLongpolling || '/lp';
908 | this.urlPrefixWebsocket = settings.urlPrefixWebsocket || '/ws';
909 |
910 | this.jsonIdKey = settings.jsonIdKey || 'id';
911 | this.jsonChannelKey = settings.jsonChannelKey || 'channel';
912 | this.jsonTextKey = settings.jsonTextKey || 'text';
913 | this.jsonTagKey = settings.jsonTagKey || 'tag';
914 | this.jsonTimeKey = settings.jsonTimeKey || 'time';
915 | this.jsonEventIdKey = settings.jsonEventIdKey || 'eventid';
916 |
917 | this.modes = (settings.modes || 'eventsource|websocket|stream|longpolling').split('|');
918 | this.wrappers = [];
919 | this.wrapper = null;
920 |
921 | this.onchanneldeleted = settings.onchanneldeleted || null;
922 | this.onmessage = settings.onmessage || null;
923 | this.onerror = settings.onerror || null;
924 | this.onstatuschange = settings.onstatuschange || null;
925 | this.extraParams = settings.extraParams || function() { return {}; };
926 |
927 | this.channels = {};
928 | this.channelsCount = 0;
929 | this.channelsByArgument = settings.channelsByArgument || false;
930 | this.channelsArgument = settings.channelsArgument || 'channels';
931 |
932 | this._crossDomain = Utils.isCrossDomainUrl(getPublisherUrl(this));
933 |
934 | for (var i = 0; i < this.modes.length; i++) {
935 | try {
936 | var wrapper = null;
937 | switch (this.modes[i]) {
938 | case "websocket" : wrapper = new WebSocketWrapper(this); break;
939 | case "eventsource": wrapper = new EventSourceWrapper(this); break;
940 | case "longpolling": wrapper = new LongPollingWrapper(this); break;
941 | case "stream" : wrapper = new StreamWrapper(this); break;
942 | }
943 | this.wrappers[this.wrappers.length] = wrapper;
944 | } catch(e) { Log4js.info(e); }
945 | }
946 |
947 | this.readyState = 0;
948 | };
949 |
950 | /* constants */
951 | PushStream.LOG_LEVEL = 'error'; /* debug, info, error */
952 | PushStream.LOG_OUTPUT_ELEMENT_ID = 'Log4jsLogOutput';
953 |
954 | /* status codes */
955 | PushStream.CLOSED = 0;
956 | PushStream.CONNECTING = 1;
957 | PushStream.OPEN = 2;
958 |
959 | /* main code */
960 | PushStream.prototype = {
961 | addChannel: function(channel, options) {
962 | if (escapeText(channel) !== channel) {
963 | throw "Invalid channel name! Channel has to be a set of [a-zA-Z0-9]";
964 | }
965 | Log4js.debug("entering addChannel");
966 | if (typeof(this.channels[channel]) !== "undefined") { throw "Cannot add channel " + channel + ": already subscribed"; }
967 | options = options || {};
968 | Log4js.info("adding channel", channel, options);
969 | this.channels[channel] = options;
970 | this.channelsCount++;
971 | if (this.readyState !== PushStream.CLOSED) { this.connect(); }
972 | Log4js.debug("leaving addChannel");
973 | },
974 |
975 | removeChannel: function(channel) {
976 | if (this.channels[channel]) {
977 | Log4js.info("removing channel", channel);
978 | delete this.channels[channel];
979 | this.channelsCount--;
980 | }
981 | },
982 |
983 | removeAllChannels: function() {
984 | Log4js.info("removing all channels");
985 | this.channels = {};
986 | this.channelsCount = 0;
987 | },
988 |
989 | _setState: function(state) {
990 | if (this.readyState !== state) {
991 | Log4js.info("status changed", state);
992 | this.readyState = state;
993 | if (this.onstatuschange) {
994 | this.onstatuschange(this.readyState);
995 | }
996 | }
997 | },
998 |
999 | connect: function() {
1000 | Log4js.debug("entering connect");
1001 | if (!this.host) { throw "PushStream host not specified"; }
1002 | if (isNaN(this.port)) { throw "PushStream port not specified"; }
1003 | if (!this.channelsCount) { throw "No channels specified"; }
1004 | if (this.wrappers.length === 0) { throw "No available support for this browser"; }
1005 |
1006 | this._keepConnected = true;
1007 | this._lastUsedMode = 0;
1008 | this._connect();
1009 |
1010 | Log4js.debug("leaving connect");
1011 | },
1012 |
1013 | disconnect: function() {
1014 | Log4js.debug("entering disconnect");
1015 | this._keepConnected = false;
1016 | this._disconnect();
1017 | this._setState(PushStream.CLOSED);
1018 | Log4js.info("disconnected");
1019 | Log4js.debug("leaving disconnect");
1020 | },
1021 |
1022 | _useControlArguments :function() {
1023 | return this.messagesControlByArgument && ((this._lastModified !== null) || (this._lastEventId !== null));
1024 | },
1025 |
1026 | _connect: function() {
1027 | if (this._lastEventId === null) {
1028 | this._lastEventId = this.lastEventId;
1029 | }
1030 | if (this._lastModified === null) {
1031 | var date = this.messagesPublishedAfter;
1032 | if (!isDate(date)) {
1033 | var messagesPublishedAfter = Number(this.messagesPublishedAfter);
1034 | if (messagesPublishedAfter > 0) {
1035 | date = new Date();
1036 | date.setTime(date.getTime() - (messagesPublishedAfter * 1000));
1037 | } else if (messagesPublishedAfter < 0) {
1038 | date = new Date(0);
1039 | }
1040 | }
1041 |
1042 | if (isDate(date)) {
1043 | this._lastModified = Utils.dateToUTCString(date);
1044 | }
1045 | }
1046 |
1047 | this._disconnect();
1048 | this._setState(PushStream.CONNECTING);
1049 | this.wrapper = this.wrappers[this._lastUsedMode++ % this.wrappers.length];
1050 |
1051 | try {
1052 | this.wrapper.connect();
1053 | } catch (e) {
1054 | //each wrapper has a cleanup routine at disconnect method
1055 | if (this.wrapper) {
1056 | this.wrapper.disconnect();
1057 | }
1058 | }
1059 | },
1060 |
1061 | _disconnect: function() {
1062 | this._reconnecttimer = clearTimer(this._reconnecttimer);
1063 | if (this.wrapper) {
1064 | this.wrapper.disconnect();
1065 | }
1066 | },
1067 |
1068 | _onopen: function() {
1069 | this._reconnecttimer = clearTimer(this._reconnecttimer);
1070 | this._setState(PushStream.OPEN);
1071 | if (this._lastUsedMode > 0) {
1072 | this._lastUsedMode--; //use same mode on next connection
1073 | }
1074 | },
1075 |
1076 | _onclose: function() {
1077 | this._reconnecttimer = clearTimer(this._reconnecttimer);
1078 | this._setState(PushStream.CLOSED);
1079 | this._reconnect(this.reconnectOnTimeoutInterval);
1080 | },
1081 |
1082 | _onmessage: function(text, id, channel, eventid, isLastMessageFromBatch) {
1083 | Log4js.debug("message", text, id, channel, eventid, isLastMessageFromBatch);
1084 | if (id === -2) {
1085 | if (this.onchanneldeleted) { this.onchanneldeleted(channel); }
1086 | } else if (id > 0) {
1087 | if (this.onmessage) { this.onmessage(text, id, channel, eventid, isLastMessageFromBatch); }
1088 | }
1089 | },
1090 |
1091 | _onerror: function(error) {
1092 | this._setState(PushStream.CLOSED);
1093 | this._reconnect((error.type === "timeout") ? this.reconnectOnTimeoutInterval : this.reconnectOnChannelUnavailableInterval);
1094 | if (this.onerror) { this.onerror(error); }
1095 | },
1096 |
1097 | _reconnect: function(timeout) {
1098 | if (this._keepConnected && !this._reconnecttimer && (this.readyState !== PushStream.CONNECTING)) {
1099 | Log4js.info("trying to reconnect in", timeout);
1100 | this._reconnecttimer = window.setTimeout(linker(this._connect, this), timeout);
1101 | }
1102 | },
1103 |
1104 | sendMessage: function(message, successCallback, errorCallback) {
1105 | message = escapeText(message);
1106 | if (this.wrapper.type === WebSocketWrapper.TYPE) {
1107 | this.wrapper.sendMessage(message);
1108 | if (successCallback) { successCallback(); }
1109 | } else {
1110 | Ajax.post({url: getPublisherUrl(this), data: message, success: successCallback, error: errorCallback, crossDomain: this._crossDomain});
1111 | }
1112 | }
1113 | };
1114 |
1115 | PushStream.sendMessage = function(url, message, successCallback, errorCallback) {
1116 | Ajax.post({url: url, data: escapeText(message), success: successCallback, error: errorCallback});
1117 | };
1118 |
1119 | // to make server header template more clear, it calls register and
1120 | // by a url parameter we find the stream wrapper instance
1121 | PushStream.register = function(iframe) {
1122 | var matcher = iframe.window.location.href.match(/streamid=([0-9]*)&?/);
1123 | if (matcher[1] && PushStreamManager[matcher[1]]) {
1124 | PushStreamManager[matcher[1]].wrapper.register(iframe);
1125 | }
1126 | };
1127 |
1128 | PushStream.unload = function() {
1129 | for (var i = 0; i < PushStreamManager.length; i++) {
1130 | try { PushStreamManager[i].disconnect(); } catch(e){}
1131 | }
1132 | };
1133 |
1134 | /* make class public */
1135 | window.PushStream = PushStream;
1136 | window.PushStreamManager = PushStreamManager;
1137 |
1138 | if (window.attachEvent) { window.attachEvent("onunload", PushStream.unload); }
1139 | if (window.addEventListener) { window.addEventListener.call(window, "unload", PushStream.unload, false); }
1140 |
1141 | })(window, document);
1142 |
--------------------------------------------------------------------------------
/public/overlay/assets/jquery.js:
--------------------------------------------------------------------------------
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