├── .gitignore
├── LICENSE
├── README.md
├── example
└── index.html
├── package-lock.json
├── package.json
└── server.js
/.gitignore:
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1 | node_modules
2 | .idea
3 |
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/LICENSE:
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1 | MIT License
2 |
3 | Copyright (c) 2018 Viktor Khokhryakov
4 |
5 | Permission is hereby granted, free of charge, to any person obtaining a copy
6 | of this software and associated documentation files (the "Software"), to deal
7 | in the Software without restriction, including without limitation the rights
8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 |
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 |
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 |
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/README.md:
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1 | WebSocket live backend for DPlayer
2 | ==================================
3 |
4 | [DPlayer](https://github.com/DIYgod/DPlayer)
5 |
6 | Usage
7 | -----
8 |
9 | - `npm i`.
10 | - `node server.js --port=1207`.
11 |
12 | See `example/index.html` for more info.
13 |
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/example/index.html:
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1 |
2 |
3 |
4 |
5 |
6 |
7 | DPlayer Demo
8 |
9 |
10 |
11 |
12 |
13 |
14 |
15 |
16 |
17 |
65 |
66 |
67 |
68 |
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/package-lock.json:
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1 | {
2 | "name": "dplayer-live-backend",
3 | "version": "0.1.0",
4 | "lockfileVersion": 1,
5 | "requires": true,
6 | "dependencies": {
7 | "async-limiter": {
8 | "version": "1.0.0",
9 | "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
10 | "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
11 | },
12 | "minimist": {
13 | "version": "1.2.0",
14 | "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.0.tgz",
15 | "integrity": "sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ="
16 | },
17 | "safe-buffer": {
18 | "version": "5.1.1",
19 | "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.1.tgz",
20 | "integrity": "sha512-kKvNJn6Mm93gAczWVJg7wH+wGYWNrDHdWvpUmHyEsgCtIwwo3bqPtV4tR5tuPaUhTOo/kvhVwd8XwwOllGYkbg=="
21 | },
22 | "ultron": {
23 | "version": "1.1.1",
24 | "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
25 | "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
26 | },
27 | "ws": {
28 | "version": "3.3.2",
29 | "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.2.tgz",
30 | "integrity": "sha512-t+WGpsNxhMR4v6EClXS8r8km5ZljKJzyGhJf7goJz9k5Ye3+b5Bvno5rjqPuIBn5mnn5GBb7o8IrIWHxX1qOLQ==",
31 | "requires": {
32 | "async-limiter": "1.0.0",
33 | "safe-buffer": "5.1.1",
34 | "ultron": "1.1.1"
35 | }
36 | }
37 | }
38 | }
39 |
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/package.json:
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1 | {
2 | "name": "dplayer-live-backend",
3 | "version": "0.1.0",
4 | "description": "WebSocket live backend for DPlayer",
5 | "main": "server.js",
6 | "scripts": {
7 | "test": "echo \"Error: no test specified\" && exit 1"
8 | },
9 | "author": "",
10 | "license": "MIT",
11 | "dependencies": {
12 | "minimist": "^1.2.0",
13 | "ws": "3.3.2"
14 | }
15 | }
16 |
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/server.js:
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1 | var WebSocket = new require('ws');
2 |
3 | var argv = require('minimist')(process.argv.slice(2), {string: ['port'], default: {port: 1207}});
4 |
5 | var server = new WebSocket.Server({
6 | clientTracking: true,
7 | port: argv['port']
8 | }, function () {
9 | console.log('WebSocket server started on port: ' + argv['port']);
10 | });
11 |
12 | var shutdown = function () {
13 | console.log('Received kill signal, shutting down gracefully.');
14 |
15 | server.close(function () {
16 | console.log('Closed out remaining connections.');
17 | process.exit();
18 | });
19 |
20 | setTimeout(function () {
21 | console.error('Could not close connections in time, forcefully shutting down');
22 | process.exit();
23 | }, 10 * 1000);
24 | };
25 |
26 | process.on('SIGTERM', shutdown);
27 | process.on('SIGINT', shutdown);
28 |
29 | server.on('error', function (err) {
30 | console.log(err);
31 | });
32 |
33 | var hexColorRegExp = /^#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})$/;
34 | var typeRegExp = /^(top|bottom|right)$/;
35 | var msgMinInterval = 500;
36 | var lastMsgTimestamps = {};
37 |
38 | server.on('connection', function (ws, req) {
39 | var ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
40 | ws.on('message', function (message) {
41 | var time = Date.now();
42 | if (lastMsgTimestamps[ip] && lastMsgTimestamps[ip] - time < msgMinInterval) {
43 | return;
44 | }
45 | try {
46 | message = JSON.parse(message);
47 | if (!hexColorRegExp.test(message.color) || !typeRegExp.test(message.type) || !message.text) {
48 | return;
49 | }
50 | var msg = {
51 | text: message.text.substr(0, 255),
52 | color: message.color,
53 | type: message.type
54 | };
55 | } catch (e) {
56 | return;
57 | }
58 |
59 | console.log(msg);
60 | lastMsgTimestamps[ip] = time;
61 |
62 | var data = JSON.stringify(msg);
63 |
64 | server.clients.forEach(function (client) {
65 | if (client !== ws && client.readyState === WebSocket.OPEN) {
66 | client.send(data, function (err) {
67 | err && console.log(err);
68 | });
69 | }
70 | });
71 | });
72 | ws.on('error', console.log);
73 | });
74 |
75 | setInterval(function () {
76 | var time = Date.now();
77 | Object.keys(lastMsgTimestamps).forEach(function (key) {
78 | if (time - lastMsgTimestamps[key] > msgMinInterval) {
79 | delete lastMsgTimestamps[key];
80 | }
81 | });
82 | }, 5000);
83 |
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