Files
PixelStreamingSystem/source/session_server/controller/session.js
T
2022-12-29 16:16:19 +05:00

117 lines
3.7 KiB
JavaScript

const port_alloc = require('../../lib/port_alloc.js')
const titles = require('../titles.json')
const config = require('../config.json')
const { spawn } = require('node:child_process')
const child_process = require('child_process')
const http_client = require('../../lib/http_client.js')
const app_port_begin = config.session_ports.app_begin
const http_port_begin = config.session_ports.http_begin
const app_args_static = config.app_args_static
const app_args_ip = config.app_args_runtime.ip
const server_ip = '127.0.0.1'//config.ip
const external_domain = config.external_domain
const app_args_port = config.app_args_runtime.port
const start_nginx = config.start_nginx
const server_id = config.server_id
const webrtc_cirrus_path = config.webrtc_args_static.cirrus_path
const coordinator_domain = config.coordinator_domain
// const http_client = require('../lib/http_client.js')
// SHALL FIX IT IN FUTURE BECAUSE IT IS NOT THE REST API
const ports_count = 50
var app_port_alloc = new port_alloc(app_port_begin, ports_count)
var http_port_alloc = new port_alloc(http_port_begin, ports_count)
// close all own sessions on session server if emergency shutdown
http_client.gets({
host: coordinator_domain,
path: `/session_server/emergency_shutdown?id=${server_id}`
}, async function(answer) {
}, function(err) {
//next(Error('session server not working'))
})
const create_session = async (req, res, next) => {
//create?title=name&next_var=0
try {
var app_info
titles.forEach((title) => {
if (title.title == req.query.title) {
app_info = title
}
})
if (!app_info)
throw new Error('app info not exists')
var app_port
var http_port
try {
app_port = app_port_alloc.get()
http_port = http_port_alloc.get()
} catch(e) {
//console.log('count error')
throw new Error(e)
}
// start app_proc
const app_proc = spawn(app_info.path, [].concat(app_args_static,
[app_args_ip + server_ip, app_args_port + app_port.toString()]), {
detached: true
})
app_proc.on('error', function(err) {
throw new Error('create proc error')
})
app_proc.on('close', (code) => {
app_port_alloc.free(app_port)
})
// start webrtc server
const webrtc_proc = child_process.fork(webrtc_cirrus_path, [http_port.toString(), app_port.toString()], {
detached: true
})
webrtc_proc.on('error', function(err) {
throw new Error('create webrtc error')
})
webrtc_proc.on('close', (code) => {
http_port_alloc.free(http_port)
// if webrtc server closed, kill app proc and send session end message to server
if (process.platform === 'win32') {
spawn('taskkill', ['/pid', app_proc.pid, '/f', '/t'])
}
else {
app_proc.kill('SIGINT')
}
http_client.gets({
host: coordinator_domain,
path: `/session/close?session_id=${req.query.session_id}`
}, async function(answer) {
}, function(err) {
next(Error('session server not working'))
})
})
setTimeout(() => {
res.json({msg:'SESSION_CREATED', link:`https://${external_domain}/${start_nginx}${http_port}/`})
}, 1000)
} catch (e) {
next(e)
}
}
const connect_session = async (req, res, next) => {
}
const close_session = async (req, res, next) => {
}
module.exports = {
create_session,
connect_session,
close_session
}