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move multiplex plugin out to reveal/reveal-multiplex repo

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Hakim El Hattab 2020-04-22 13:22:01 +02:00
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README.md
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@ -56,9 +56,6 @@ This project was started and is maintained by [@hakimel](https://github.com/haki
- [Server Side Speaker Notes](#server-side-speaker-notes)
- [Plugins](#plugins)
- [Multiplexing](#multiplexing)
- [Master presentation](#master-presentation)
- [Client presentation](#client-presentation)
- [Socket.io server](#socketio-server)
- [MathJax](#mathjax)
- [License](#license)
@ -1449,144 +1446,7 @@ If you want to check if a specific plugin is registered you can use the `Reveal.
## Multiplexing
The multiplex plugin allows your audience to view the slides of the presentation you are controlling on their own phone, tablet or laptop. As the master presentation navigates the slides, all client presentations will update in real time. See a demo at [https://reveal-js-multiplex-ccjbegmaii.now.sh/](https://reveal-js-multiplex-ccjbegmaii.now.sh/).
The multiplex plugin needs the following 3 things to operate:
1. Master presentation that has control
2. Client presentations that follow the master
3. Socket.io server to broadcast events from the master to the clients
#### Master presentation
Served from a static file server accessible (preferably) only to the presenter. This need only be on your (the presenter's) computer. (It's safer to run the master presentation from your own computer, so if the venue's Internet goes down it doesn't stop the show.) An example would be to execute the following commands in the directory of your master presentation:
1. `npm install node-static`
2. `static`
If you want to use the speaker notes plugin with your master presentation then make sure you have the speaker notes plugin configured correctly along with the configuration shown below, then execute `node plugin/notes-server` in the directory of your master presentation. The configuration below will cause it to connect to the socket.io server as a master, as well as launch your speaker-notes/static-file server.
You can then access your master presentation at `http://localhost:1947`
Example configuration:
```javascript
Reveal.initialize({
// other options...
multiplex: {
// Example values. To generate your own, see the socket.io server instructions.
secret: '13652805320794272084', // Obtained from the socket.io server. Gives this (the master) control of the presentation
id: '1ea875674b17ca76', // Obtained from socket.io server
url: 'https://reveal-js-multiplex-ccjbegmaii.now.sh' // Location of socket.io server
},
// Don't forget to add the dependencies
dependencies: [
{ src: '//cdnjs.cloudflare.com/ajax/libs/socket.io/2.2.0/socket.io.js', async: true },
{ src: 'plugin/multiplex/master.js', async: true },
// and if you want speaker notes
{ src: 'plugin/notes-server/client.js', async: true }
// other dependencies...
]
});
```
#### Client presentation
Served from a publicly accessible static file server. Examples include: GitHub Pages, Amazon S3, Dreamhost, Akamai, etc. The more reliable, the better. Your audience can then access the client presentation via `https://example.com/path/to/presentation/client/index.html`, with the configuration below causing them to connect to the socket.io server as clients.
Example configuration:
```javascript
Reveal.initialize({
// other options...
multiplex: {
// Example values. To generate your own, see the socket.io server instructions.
secret: null, // null so the clients do not have control of the master presentation
id: '1ea875674b17ca76', // id, obtained from socket.io server
url: 'https://reveal-js-multiplex-ccjbegmaii.now.sh' // Location of socket.io server
},
// Don't forget to add the dependencies
dependencies: [
{ src: '//cdnjs.cloudflare.com/ajax/libs/socket.io/2.2.0/socket.io.js', async: true },
{ src: 'plugin/multiplex/client.js', async: true }
// other dependencies...
]
});
```
#### Socket.io server
Server that receives the `slideChanged` events from the master presentation and broadcasts them out to the connected client presentations. This needs to be publicly accessible. You can run your own socket.io server with the commands:
1. `npm install`
2. `node plugin/multiplex`
Or you can use the socket.io server at [https://reveal-js-multiplex-ccjbegmaii.now.sh/](https://reveal-js-multiplex-ccjbegmaii.now.sh/).
You'll need to generate a unique secret and token pair for your master and client presentations. To do so, visit `https://example.com/token`, where `https://example.com` is the location of your socket.io server. Or if you're going to use the socket.io server at [https://reveal-js-multiplex-ccjbegmaii.now.sh/](https://reveal-js-multiplex-ccjbegmaii.now.sh/), visit [https://reveal-js-multiplex-ccjbegmaii.now.sh/token](https://reveal-js-multiplex-ccjbegmaii.now.sh/token).
You are very welcome to point your presentations at the Socket.io server running at [https://reveal-js-multiplex-ccjbegmaii.now.sh/](https://reveal-js-multiplex-ccjbegmaii.now.sh/), but availability and stability are not guaranteed.
For anything mission critical I recommend you run your own server. The easiest way to do this is by installing [now](https://zeit.co/now). With that installed, deploying your own Multiplex server is as easy running the following command from the reveal.js folder: `now plugin/multiplex`.
##### socket.io server as file static server
The socket.io server can play the role of static file server for your client presentation, as in the example at [https://reveal-js-multiplex-ccjbegmaii.now.sh/](https://reveal-js-multiplex-ccjbegmaii.now.sh/). (Open [https://reveal-js-multiplex-ccjbegmaii.now.sh/](https://reveal-js-multiplex-ccjbegmaii.now.sh/) in two browsers. Navigate through the slides on one, and the other will update to match.)
Example configuration:
```javascript
Reveal.initialize({
// other options...
multiplex: {
// Example values. To generate your own, see the socket.io server instructions.
secret: null, // null so the clients do not have control of the master presentation
id: '1ea875674b17ca76', // id, obtained from socket.io server
url: 'example.com:80' // Location of your socket.io server
},
// Don't forget to add the dependencies
dependencies: [
{ src: '//cdnjs.cloudflare.com/ajax/libs/socket.io/2.2.0/socket.io.js', async: true },
{ src: 'plugin/multiplex/client.js', async: true }
// other dependencies...
]
```
It can also play the role of static file server for your master presentation and client presentations at the same time (as long as you don't want to use speaker notes). (Open [https://reveal-js-multiplex-ccjbegmaii.now.sh/](https://reveal-js-multiplex-ccjbegmaii.now.sh/) in two browsers. Navigate through the slides on one, and the other will update to match. Navigate through the slides on the second, and the first will update to match.) This is probably not desirable, because you don't want your audience to mess with your slides while you're presenting. ;)
Example configuration:
```javascript
Reveal.initialize({
// other options...
multiplex: {
// Example values. To generate your own, see the socket.io server instructions.
secret: '13652805320794272084', // Obtained from the socket.io server. Gives this (the master) control of the presentation
id: '1ea875674b17ca76', // Obtained from socket.io server
url: 'example.com:80' // Location of your socket.io server
},
// Don't forget to add the dependencies
dependencies: [
{ src: '//cdnjs.cloudflare.com/ajax/libs/socket.io/2.2.0/socket.io.js', async: true },
{ src: 'plugin/multiplex/master.js', async: true },
{ src: 'plugin/multiplex/client.js', async: true }
// other dependencies...
]
});
```
The multiplex plugin allows your audience to follow the slides of the presentation you are controlling on their own phone, tablet or laptop. As of 4.0.0 this plugin has moved to its own repo at <https://github.com/reveal/multiplex>;
## MathJax

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@ -4797,12 +4499,6 @@
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@ -4951,12 +4647,6 @@
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@ -5647,12 +5337,6 @@
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@ -5671,24 +5355,12 @@
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"integrity": "sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=",
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@ -5777,12 +5449,6 @@
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@ -6037,12 +5703,6 @@
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"integrity": "sha1-8MaapQ78lbhmwYb0AKM3acsvEpE=",
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@ -6288,24 +5948,6 @@
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"integrity": "sha1-1SCKNzjkZ2bikbouoXNoSSGouJ0=",
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}
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"resolved": "https://registry.npmjs.org/parseuri/-/parseuri-0.0.5.tgz",
"integrity": "sha1-gCBKUNTbt3m/3G6+J3jZDkvOMgo=",
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"resolved": "https://registry.npmjs.org/parseurl/-/parseurl-1.3.3.tgz",
@ -6363,12 +6005,6 @@
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"resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-0.1.7.tgz",
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"resolved": "https://registry.npmjs.org/proxy-addr/-/proxy-addr-2.0.6.tgz",
"integrity": "sha512-dh/frvCBVmSsDYzw6n926jv974gddhkFPfiN8hPOi30Wax25QZyZEGveluCgliBnqmuM+UJmBErbAUFIoDbjOw==",
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"dev": true
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"resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.4.0.tgz",
"integrity": "sha512-4Oz8DUIwdvoa5qMJelxipzi/iJIi40O5cGV1wNYp5hvZP8ZN0T+jiNkL0QepXs+EsQ9XJ8ipEDoiH70ySUJP3Q==",
"dev": true,
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"iconv-lite": "0.4.24",
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}
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"resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-1.1.0.tgz",
@ -7584,115 +7198,6 @@
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"resolved": "https://registry.npmjs.org/socket.io/-/socket.io-2.3.0.tgz",
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"has-binary2": "~1.0.2",
"socket.io-adapter": "~1.1.0",
"socket.io-client": "2.3.0",
"socket.io-parser": "~3.4.0"
}
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"integrity": "sha512-WzZRUj1kUjrTIrUKpZLEzFZ1OLj5FwLlAFQs9kuZJzJi5DKdU7FsWc36SNmA8iDOtwBQyT8FkrriRM8vXLYz8g==",
"dev": true
},
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"integrity": "sha512-/G/VOI+3DBp0+DJKW4KesGnQkQPFmUCbA/oO2QGT6CWxU7hLGWqU3tyuzeSK/dqcyeHsQg1vTe9jiZI8GU9SCQ==",
"dev": true,
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},
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"resolved": "https://registry.npmjs.org/component-emitter/-/component-emitter-1.2.1.tgz",
"integrity": "sha1-E3kY1teCg/ffemt8WmPhQOaUJeY=",
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@ -8102,12 +7607,6 @@
"is-negated-glob": "^1.0.0"
}
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"integrity": "sha1-F+bBH3PdTz10zaek/zI46a2b+JA=",
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},
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@ -8237,16 +7736,6 @@
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"dev": true
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"resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
"integrity": "sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==",
"dev": true,
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"mime-types": "~2.1.24"
}
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@ -8454,12 +7943,6 @@
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"resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
"integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=",
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@ -8615,12 +8098,6 @@
"async-limiter": "~1.0.0"
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"resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
@ -8855,12 +8332,6 @@
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"integrity": "sha1-AI4G2AlDIMNy28L47XagymyKxBk=",
"dev": true
}
}
}

3
package.json
View File

@ -30,7 +30,6 @@
"babel-eslint": "^10.1.0",
"colors": "^1.4.0",
"core-js": "^3.6.5",
"express": "^4.17.1",
"glob": "^7.1.6",
"gulp": "^4.0.2",
"gulp-autoprefixer": "^7.0.1",
@ -41,13 +40,11 @@
"gulp-sass": "^4.0.2",
"gulp-tap": "^2.0.0",
"gulp-zip": "^5.0.1",
"mustache": "^4.0.0",
"node-qunit-puppeteer": "^2.0.1",
"qunit": "^2.9.3",
"rollup": "^2.6.1",
"rollup-plugin-babel": "^4.4.0",
"rollup-plugin-terser": "^5.3.0",
"socket.io": "^2.3.0",
"yargs": "^15.1.0"
},
"browserslist": "> 0.5%, IE 11, not dead",

13
plugin/multiplex/client.js
View File

@ -1,13 +0,0 @@
(function() {
var multiplex = Reveal.getConfig().multiplex;
var socketId = multiplex.id;
var socket = io.connect(multiplex.url);
socket.on(multiplex.id, function(data) {
// ignore data from sockets that aren't ours
if (data.socketId !== socketId) { return; }
if( window.location.host === 'localhost:1947' ) return;
Reveal.setState(data.state);
});
}());

64
plugin/multiplex/index.js
View File

@ -1,64 +0,0 @@
var http = require('http');
var express = require('express');
var fs = require('fs');
var io = require('socket.io');
var crypto = require('crypto');
var app = express();
var staticDir = express.static;
var server = http.createServer(app);
io = io(server);
var opts = {
port: process.env.PORT || 1948,
baseDir : __dirname + '/../../'
};
io.on( 'connection', function( socket ) {
socket.on('multiplex-statechanged', function(data) {
if (typeof data.secret == 'undefined' || data.secret == null || data.secret === '') return;
if (createHash(data.secret) === data.socketId) {
data.secret = null;
socket.broadcast.emit(data.socketId, data);
};
});
});
[ 'css', 'js', 'plugin', 'lib' ].forEach(function(dir) {
app.use('/' + dir, staticDir(opts.baseDir + dir));
});
app.get("/", function(req, res) {
res.writeHead(200, {'Content-Type': 'text/html'});
var stream = fs.createReadStream(opts.baseDir + '/index.html');
stream.on('error', function( error ) {
res.write('<style>body{font-family: sans-serif;}</style><h2>reveal.js multiplex server.</h2><a href="/token">Generate token</a>');
res.end();
});
stream.on('readable', function() {
stream.pipe(res);
});
});
app.get("/token", function(req,res) {
var ts = new Date().getTime();
var rand = Math.floor(Math.random()*9999999);
var secret = ts.toString() + rand.toString();
res.send({secret: secret, socketId: createHash(secret)});
});
var createHash = function(secret) {
var cipher = crypto.createCipher('blowfish', secret);
return(cipher.final('hex'));
};
// Actually listen
server.listen( opts.port || null );
var brown = '\033[33m',
green = '\033[32m',
reset = '\033[0m';
console.log( brown + "reveal.js:" + reset + " Multiplex running on port " + green + opts.port + reset );

34
plugin/multiplex/master.js
View File

@ -1,34 +0,0 @@
(function() {
// Don't emit events from inside of notes windows
if ( window.location.search.match( /receiver/gi ) ) { return; }
var multiplex = Reveal.getConfig().multiplex;
var socket = io.connect( multiplex.url );
function post() {
var messageData = {
state: Reveal.getState(),
secret: multiplex.secret,
socketId: multiplex.id
};
socket.emit( 'multiplex-statechanged', messageData );
};
// post once the page is loaded, so the client follows also on "open URL".
window.addEventListener( 'load', post );
// Monitor events that trigger a change in state
Reveal.on( 'slidechanged', post );
Reveal.on( 'fragmentshown', post );
Reveal.on( 'fragmenthidden', post );
Reveal.on( 'overviewhidden', post );
Reveal.on( 'overviewshown', post );
Reveal.on( 'paused', post );
Reveal.on( 'resumed', post );
}());

19
plugin/multiplex/package.json
View File

@ -1,19 +0,0 @@
{
"name": "reveal-js-multiplex",
"version": "1.0.0",
"description": "reveal.js multiplex server",
"homepage": "http://revealjs.com",
"scripts": {
"start": "node index.js"
},
"engines": {
"node": "~4.1.1"
},
"dependencies": {
"express": "~4.13.3",
"grunt-cli": "~0.1.13",
"mustache": "~2.2.1",
"socket.io": "~1.3.7"
},
"license": "MIT"
}