webRTC-to-stream/server.js

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JavaScript
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2018-05-28 18:33:58 +00:00
const path = require('path');
const url = require('url');
const express = require('express');
const fs = require('fs');
const http = require('http');
const io = require('socket.io');
const app = express();
const port = 8443;
const server = http.createServer(app).listen(port, function() {
console.log('Open http://localhost:' + port + '/ with a browser');
});
// CORS
app.use((req, res, next) => {
res.setHeader('Access-Control-Allow-Origin', '*');
next();
});
app.use(express.static(path.join(__dirname, 'static')));
const socket = io(server);
let blobs = [];
socket.on('connection', (socket) => {
console.log('Connected ' + socket.id);
socket.on('error', (error) => {
console.error('Connection ' + socket.id + ' error', error);
});
socket.on('disconnect',(socket) => {
console.log('Connection ' + socket.id + ' closed');
});
socket.on('blob', (data) =>{
console.log('new blob');
// Send via socket
socket.broadcast.emit('newBlob', data);
// Save to file
fs.appendFileSync('new.webm', data);
});
});
app.get('/video', function(req, res) {
const path = 'new.webm'
const stat = fs.statSync(path)
const fileSize = stat.size;
const range = req.headers.range;
if (range) {
const parts = range.replace(/bytes=/, "").split("-");
const start = parseInt(parts[0], 10);
const end = parts[1]
? parseInt(parts[1], 10)
: fileSize-1
const chunksize = (end-start)+1;
const file = fs.createReadStream(path, {start, end});
const head = {
'Content-Range': `bytes ${start}-${end}/${fileSize}`,
'Accept-Ranges': 'bytes',
'Content-Length': chunksize,
'Content-Type': 'video/webm',
}
res.writeHead(206, head);
file.pipe(res);
} else {
const head = {
'Accept-Ranges': 'bytes',
'Content-Length': fileSize,
'Content-Type': 'video/webm',
}
res.writeHead(200, head)
fs.createReadStream(path).pipe(res)
}
})