webrtc/index.js

94 lines
3.4 KiB
JavaScript

import express from 'express'
import expressWs from 'express-ws'
import turn from 'node-turn'
import { exec } from 'child_process'
// 创建 TURN 服务器
const turnServer = new turn({
//authMech: 'long-term',
//credentials: {
// username: 'your-username',
// password: 'your-password',
//},
authMech: 'none',
debugLevel: 'ALL',
listeningIps: ['0.0.0.0'],
listeningPort: 3478,
//relayIps: ['0.0.0.0'],
//relayPort: 3478,
//verbose: true
})
// 启动 TURN 服务器
turnServer.start(() => {
console.log('TURN server start:', turnServer)
})
const app = express()
const wsInstance = expressWs(app)
app.use(express.static('public'))
app.use(express.json())
app.use((req, res, next) => {
if (req.method === 'CONNECT') {
turnServer.handleConnect(req, res)
} else {
next()
}
})
// Websocket 处理 webRTC 信令
app.ws('/webrtc/:channel', (ws, req) => {
ws.id = req.headers['sec-websocket-key']
ws.channel = req.params.channel
ws.name = req.query.name
console.log('ws.name:', ws.name)
// 设备离开频道时广播给所有在线设备
ws.on('close', () => {
console.log(ws.id, '设备离开频道:', ws.channel, wsInstance.getWss().clients.size)
wsInstance.getWss().clients.forEach(client => {
if (client !== ws && client.readyState === 1 && client.channel === ws.channel) {
client.send(JSON.stringify({ type: 'pull', id: ws.id, channel: ws.channel }))
}
})
})
// 设备发生错误时广播给所有在线设备
ws.on('error', () => {
console.log(ws.id, '设备发生错误:', ws.channel, wsInstance.getWss().clients.size)
wsInstance.getWss().clients.forEach(client => {
if (client !== ws && client.readyState === 1 && client.channel === ws.channel) {
client.send(JSON.stringify({ type: 'error', id: ws.id, channel: ws.channel }))
}
})
})
// 设备发送信令时转发给指定在线设备
ws.on('message', message => {
console.log(ws.id, '设备发送信令:', ws.channel, wsInstance.getWss().clients.size)
const data = JSON.parse(message)
wsInstance.getWss().clients.forEach(client => {
if (client !== ws && client.readyState === 1 && client.channel === ws.channel && client.id === data.id) {
client.send(JSON.stringify({ ...data, id: ws.id, name: ws.name }))
}
})
})
// 设备加入频道时广播给所有在线设备(也获取所有在线设备)
console.log(ws.id, '设备加入频道:', ws.channel, wsInstance.getWss().clients.size)
wsInstance.getWss().clients.forEach(client => {
if (client !== ws && client.readyState === 1 && client.channel === ws.channel) {
console.log(ws.name, '广播给在线设备:', client.name)
client.send(JSON.stringify({ type: 'push', id: ws.id, name: ws.name, channel: ws.channel }))
ws.send(JSON.stringify({ type: 'list', id: client.id, name: client.name, channel: client.channel }))
}
})
})
// WEBHOOK 处理 GitHub 事件
app.post('/webhook', (req, res) => {
console.log('WEBHOOK:', req.body)
return exec('git pull;npm i', (err, stdout, stderr) => {
if (err) return res.status(500).json({ error: err })
return res.json({ stdout, stderr })
})
})
app.listen(4096, () => console.log('Server started on port 4096'))