server.js

   1 'use strict'
   2
   3 // ----------- Node modules -----------
   4 const bodyParser = require('body-parser')
   5 const express = require('express')
   6 const expressValidator = require('express-validator')
   7 const http = require('http')
   8 const morgan = require('morgan')
   9 const path = require('path')
  10 const TrackerServer = require('bittorrent-tracker').Server
  11 const WebSocketServer = require('ws').Server
  12
  13 // Create our main app
  14 const app = express()
  15
  16 // ----------- Database -----------
  17 const config = require('config')
  18 const constants = require('./server/initializers/constants')
  19 const database = require('./server/initializers/database')
  20 const logger = require('./server/helpers/logger')
  21
  22 database.connect()
  23
  24 // ----------- Checker -----------
  25 const checker = require('./server/initializers/checker')
  26
  27 const miss = checker.checkConfig()
  28 if (miss.length !== 0) {
  29   throw new Error('Miss some configurations keys : ' + miss)
  30 }
  31
  32 // ----------- PeerTube modules -----------
  33 const customValidators = require('./server/helpers/custom-validators')
  34 const installer = require('./server/initializers/installer')
  35 const migrator = require('./server/initializers/migrator')
  36 const mongoose = require('mongoose')
  37 const routes = require('./server/controllers')
  38 const utils = require('./server/helpers/utils')
  39 const webtorrent = require('./server/lib/webtorrent')
  40 const Request = mongoose.model('Request')
  41 const Video = mongoose.model('Video')
  42
  43 // Get configurations
  44 const port = config.get('listen.port')
  45
  46 // ----------- Command line -----------
  47
  48 // ----------- App -----------
  49
  50 // For the logger
  51 app.use(morgan('combined', { stream: logger.stream }))
  52 // For body requests
  53 app.use(bodyParser.json({ limit: '500kb' }))
  54 app.use(bodyParser.urlencoded({ extended: false }))
  55 // Validate some params for the API
  56 app.use(expressValidator({
  57   customValidators: Object.assign(
  58     {},
  59     customValidators.misc,
  60     customValidators.pods,
  61     customValidators.users,
  62     customValidators.videos
  63   )
  64 }))
  65
  66 // ----------- Views, routes and static files -----------
  67
  68 // Catch sefaults
  69 require('segfault-handler').registerHandler()
  70
  71 // API routes
  72 const apiRoute = '/api/' + constants.API_VERSION
  73 app.use(apiRoute, routes.api)
  74
  75 // Static files
  76 app.use('/client', express.static(path.join(__dirname, '/client/dist'), { maxAge: 0 }))
  77 // 404 for static files not found
  78 app.use('/client/*', function (req, res, next) {
  79   res.sendStatus(404)
  80 })
  81
  82 // Thumbnails path for express
  83 const thumbnailsPhysicalPath = path.join(__dirname, config.get('storage.thumbnails'))
  84 app.use(constants.THUMBNAILS_STATIC_PATH, express.static(thumbnailsPhysicalPath, { maxAge: 0 }))
  85
  86 // Client application
  87 app.use('/*', function (req, res, next) {
  88   res.sendFile(path.join(__dirname, 'client/dist/index.html'))
  89 })
  90
  91 // ----------- Tracker -----------
  92
  93 const trackerServer = new TrackerServer({
  94   http: false,
  95   udp: false,
  96   ws: false,
  97   dht: false
  98 })
  99
 100 trackerServer.on('error', function (err) {
 101   logger.error(err)
 102 })
 103
 104 trackerServer.on('warning', function (err) {
 105   logger.error(err)
 106 })
 107
 108 const server = http.createServer(app)
 109 const wss = new WebSocketServer({server: server, path: '/tracker/socket'})
 110 wss.on('connection', function (ws) {
 111   trackerServer.onWebSocketConnection(ws)
 112 })
 113
 114 // ----------- Errors -----------
 115
 116 // Catch 404 and forward to error handler
 117 app.use(function (req, res, next) {
 118   const err = new Error('Not Found')
 119   err.status = 404
 120   next(err)
 121 })
 122
 123 app.use(function (err, req, res, next) {
 124   logger.error(err)
 125   res.sendStatus(err.status || 500)
 126 })
 127
 128 installer.installApplication(function (err) {
 129   if (err) throw err
 130
 131   // Run the migration scripts if needed
 132   migrator.migrate(function (err) {
 133     if (err) throw err
 134
 135     // Create/activate the webtorrent module
 136     webtorrent.create(function () {
 137       function cleanForExit () {
 138         utils.cleanForExit(webtorrent.app)
 139       }
 140
 141       function exitGracefullyOnSignal () {
 142         process.exit(-1)
 143       }
 144
 145       process.on('exit', cleanForExit)
 146       process.on('SIGINT', exitGracefullyOnSignal)
 147       process.on('SIGTERM', exitGracefullyOnSignal)
 148
 149       // ----------- Make the server listening -----------
 150       server.listen(port, function () {
 151         // Activate the pool requests
 152         Request.activate()
 153
 154         Video.seedAllExisting(function (err) {
 155           if (err) throw err
 156
 157           logger.info('Seeded all the videos')
 158           logger.info('Server listening on port %d', port)
 159           app.emit('ready')
 160         })
 161       })
 162     })
 163   })
 164 })
 165
 166 module.exports = app