Rename webtorrent files (process/node)

1 files changed, 126 insertions, 60 deletions

diff --git a/lib/webtorrent.js b/lib/webtorrent.js
index d0db6e066..7cd38156c 100644
--- a/lib/webtorrent.js
+++ b/lib/webtorrent.js
@@ -1,92 +1,158 @@
 ;(function () {
   'use strict'
 
-  function webtorrent (args) {
-    var WebTorrent = require('webtorrent')
-    var ipc = require('node-ipc')
+  var config = require('config')
+  var ipc = require('node-ipc')
+  var pathUtils = require('path')
+  var spawn = require('electron-spawn')
+
+  var logger = require('../helpers/logger')
+
+  var host = config.get('webserver.host')
+  var port = config.get('webserver.port')
+  var nodeKey = 'webtorrentnode' + port
+  var processKey = 'webtorrentprocess' + port
+  ipc.config.silent = true
+  ipc.config.id = nodeKey
+
+  var webtorrent = {
+    add: add,
+    app: null, // Pid of the app
+    create: create,
+    remove: remove,
+    seed: seed,
+    silent: false // Useful for beautiful tests
+  }
 
-    if (args.length !== 3) {
-      console.log('Wrong arguments number: ' + args.length + '/3')
-      process.exit(-1)
+  function create (options, callback) {
+    if (typeof options === 'function') {
+      callback = options
+      options = {}
     }
 
-    var host = args[1]
-    var port = args[2]
-    var nodeKey = 'webtorrentnode' + port
-    var processKey = 'webtorrent' + port
+    // Override options
+    if (options.host) host = options.host
+    if (options.port) {
+      port = options.port
+      nodeKey = 'webtorrentnode' + port
+      processKey = 'webtorrentprocess' + port
+      ipc.config.id = nodeKey
+    }
 
-    ipc.config.silent = true
-    ipc.config.id = processKey
+    ipc.serve(function () {
+      if (!webtorrent.silent) logger.info('IPC server ready.')
 
-    if (host === 'client' && port === '1') global.WEBTORRENT_ANNOUNCE = []
-    else global.WEBTORRENT_ANNOUNCE = 'ws://' + host + ':' + port + '/tracker/socket'
-    var wt = new WebTorrent({ dht: false })
+      // Run a timeout of 30s after which we exit the process
+      var timeout_webtorrent_process = setTimeout(function () {
+        logger.error('Timeout : cannot run the webtorrent process. Please ensure you have electron-prebuilt npm package installed with xvfb-run.')
+        process.exit()
+      }, 30000)
 
-    function seed (data) {
-      var args = data.args
-      var path = args.path
-      var _id = data._id
+      ipc.server.on(processKey + '.ready', function () {
+        if (!webtorrent.silent) logger.info('Webtorrent process ready.')
+        clearTimeout(timeout_webtorrent_process)
+        callback()
+      })
 
-      wt.seed(path, { announceList: '' }, function (torrent) {
-        var to_send = {
-          magnetUri: torrent.magnetURI
-        }
+      ipc.server.on(processKey + '.exception', function (data) {
+        logger.error('Received exception error from webtorrent process.', { exception: data.exception })
+        process.exit()
+      })
 
-        ipc.of[nodeKey].emit(nodeKey + '.seedDone.' + _id, to_send)
+      var webtorrent_process = spawn(__dirname + '/webtorrentProcess.js', host, port, { detached: true })
+      webtorrent_process.stderr.on('data', function (data) {
+        // logger.debug('Webtorrent process stderr: ', data.toString())
       })
-    }
 
-    function add (data) {
-      var args = data.args
-      var magnetUri = args.magnetUri
-      var _id = data._id
+      webtorrent_process.stdout.on('data', function (data) {
+        // logger.debug('Webtorrent process:', data.toString())
+      })
 
-      wt.add(magnetUri, function (torrent) {
-        var to_send = {
-          files: []
-        }
+      webtorrent.app = webtorrent_process
+    })
 
-        torrent.files.forEach(function (file) {
-          to_send.files.push({ path: file.path })
-        })
+    ipc.server.start()
+  }
 
-        ipc.of[nodeKey].emit(nodeKey + '.addDone.' + _id, to_send)
-      })
+  function seed (path, callback) {
+    var extension = pathUtils.extname(path)
+    var basename = pathUtils.basename(path, extension)
+    var data = {
+      _id: basename,
+      args: {
+        path: path
+      }
     }
 
-    function remove (data) {
-      var args = data.args
-      var magnetUri = args.magnetUri
-      var _id = data._id
+    if (!webtorrent.silent) logger.debug('Node wants to seed %s.', data._id)
 
-      try {
-        wt.remove(magnetUri, callback)
-      } catch (err) {
-        console.log('Cannot remove the torrent from WebTorrent.')
-        return callback(null)
+    // Finish signal
+    var event_key = nodeKey + '.seedDone.' + data._id
+    ipc.server.on(event_key, function listener (received) {
+      if (!webtorrent.silent) logger.debug('Process seeded torrent %s.', received.magnetUri)
+
+      // This is a fake object, we just use the magnetUri in this project
+      var torrent = {
+        magnetURI: received.magnetUri
       }
 
-      function callback () {
-        var to_send = {}
-        ipc.of[nodeKey].emit(nodeKey + '.removeDone.' + _id, to_send)
+      ipc.server.off(event_key)
+      callback(torrent)
+    })
+
+    ipc.server.broadcast(processKey + '.seed', data)
+  }
+
+  function add (magnetUri, callback) {
+    var data = {
+      _id: magnetUri,
+      args: {
+        magnetUri: magnetUri
       }
     }
 
-    console.log('Configuration: ' + host + ':' + port)
-    console.log('Connecting to IPC...')
+    if (!webtorrent.silent) logger.debug('Node wants to add ' + data._id)
 
-    ipc.connectTo(nodeKey, function () {
-      ipc.of[nodeKey].on(processKey + '.seed', seed)
-      ipc.of[nodeKey].on(processKey + '.add', add)
-      ipc.of[nodeKey].on(processKey + '.remove', remove)
+    // Finish signal
+    var event_key = nodeKey + '.addDone.' + data._id
+    ipc.server.on(event_key, function (received) {
+      if (!webtorrent.silent) logger.debug('Process added torrent.')
+
+      // This is a fake object, we just use the magnetUri in this project
+      var torrent = {
+        files: received.files
+      }
 
-      ipc.of[nodeKey].emit(processKey + '.ready')
-      console.log('Ready.')
+      ipc.server.off(event_key)
+      callback(torrent)
     })
 
-    process.on('uncaughtException', function (e) {
-      ipc.of[nodeKey].emit(processKey + '.exception', { exception: e })
+    ipc.server.broadcast(processKey + '.add', data)
+  }
+
+  function remove (magnetUri, callback) {
+    var data = {
+      _id: magnetUri,
+      args: {
+        magnetUri: magnetUri
+      }
+    }
+
+    if (!webtorrent.silent) logger.debug('Node wants to stop seeding %s.', data._id)
+
+    // Finish signal
+    var event_key = nodeKey + '.removeDone.' + data._id
+    ipc.server.on(event_key, function (received) {
+      if (!webtorrent.silent) logger.debug('Process removed torrent %s.', data._id)
+
+      var err = null
+      if (received.err) err = received.err
+
+      ipc.server.off(event_key)
+      callback(err)
     })
+
+    ipc.server.broadcast(processKey + '.remove', data)
   }
 
   // ---------------------------------------------------------------------------