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-rw-r--r--lib/webtorrent.js186
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 @@
1;(function () { 1;(function () {
2 'use strict' 2 'use strict'
3 3
4 function webtorrent (args) { 4 var config = require('config')
5 var WebTorrent = require('webtorrent') 5 var ipc = require('node-ipc')
6 var ipc = require('node-ipc') 6 var pathUtils = require('path')
7 var spawn = require('electron-spawn')
8
9 var logger = require('../helpers/logger')
10
11 var host = config.get('webserver.host')
12 var port = config.get('webserver.port')
13 var nodeKey = 'webtorrentnode' + port
14 var processKey = 'webtorrentprocess' + port
15 ipc.config.silent = true
16 ipc.config.id = nodeKey
17
18 var webtorrent = {
19 add: add,
20 app: null, // Pid of the app
21 create: create,
22 remove: remove,
23 seed: seed,
24 silent: false // Useful for beautiful tests
25 }
7 26
8 if (args.length !== 3) { 27 function create (options, callback) {
9 console.log('Wrong arguments number: ' + args.length + '/3') 28 if (typeof options === 'function') {
10 process.exit(-1) 29 callback = options
30 options = {}
11 } 31 }
12 32
13 var host = args[1] 33 // Override options
14 var port = args[2] 34 if (options.host) host = options.host
15 var nodeKey = 'webtorrentnode' + port 35 if (options.port) {
16 var processKey = 'webtorrent' + port 36 port = options.port
37 nodeKey = 'webtorrentnode' + port
38 processKey = 'webtorrentprocess' + port
39 ipc.config.id = nodeKey
40 }
17 41
18 ipc.config.silent = true 42 ipc.serve(function () {
19 ipc.config.id = processKey 43 if (!webtorrent.silent) logger.info('IPC server ready.')
20 44
21 if (host === 'client' && port === '1') global.WEBTORRENT_ANNOUNCE = [] 45 // Run a timeout of 30s after which we exit the process
22 else global.WEBTORRENT_ANNOUNCE = 'ws://' + host + ':' + port + '/tracker/socket' 46 var timeout_webtorrent_process = setTimeout(function () {
23 var wt = new WebTorrent({ dht: false }) 47 logger.error('Timeout : cannot run the webtorrent process. Please ensure you have electron-prebuilt npm package installed with xvfb-run.')
48 process.exit()
49 }, 30000)
24 50
25 function seed (data) { 51 ipc.server.on(processKey + '.ready', function () {
26 var args = data.args 52 if (!webtorrent.silent) logger.info('Webtorrent process ready.')
27 var path = args.path 53 clearTimeout(timeout_webtorrent_process)
28 var _id = data._id 54 callback()
55 })
29 56
30 wt.seed(path, { announceList: '' }, function (torrent) { 57 ipc.server.on(processKey + '.exception', function (data) {
31 var to_send = { 58 logger.error('Received exception error from webtorrent process.', { exception: data.exception })
32 magnetUri: torrent.magnetURI 59 process.exit()
33 } 60 })
34 61
35 ipc.of[nodeKey].emit(nodeKey + '.seedDone.' + _id, to_send) 62 var webtorrent_process = spawn(__dirname + '/webtorrentProcess.js', host, port, { detached: true })
63 webtorrent_process.stderr.on('data', function (data) {
64 // logger.debug('Webtorrent process stderr: ', data.toString())
36 }) 65 })
37 }
38 66
39 function add (data) { 67 webtorrent_process.stdout.on('data', function (data) {
40 var args = data.args 68 // logger.debug('Webtorrent process:', data.toString())
41 var magnetUri = args.magnetUri 69 })
42 var _id = data._id
43 70
44 wt.add(magnetUri, function (torrent) { 71 webtorrent.app = webtorrent_process
45 var to_send = { 72 })
46 files: []
47 }
48 73
49 torrent.files.forEach(function (file) { 74 ipc.server.start()
50 to_send.files.push({ path: file.path }) 75 }
51 })
52 76
53 ipc.of[nodeKey].emit(nodeKey + '.addDone.' + _id, to_send) 77 function seed (path, callback) {
54 }) 78 var extension = pathUtils.extname(path)
79 var basename = pathUtils.basename(path, extension)
80 var data = {
81 _id: basename,
82 args: {
83 path: path
84 }
55 } 85 }
56 86
57 function remove (data) { 87 if (!webtorrent.silent) logger.debug('Node wants to seed %s.', data._id)
58 var args = data.args
59 var magnetUri = args.magnetUri
60 var _id = data._id
61 88
62 try { 89 // Finish signal
63 wt.remove(magnetUri, callback) 90 var event_key = nodeKey + '.seedDone.' + data._id
64 } catch (err) { 91 ipc.server.on(event_key, function listener (received) {
65 console.log('Cannot remove the torrent from WebTorrent.') 92 if (!webtorrent.silent) logger.debug('Process seeded torrent %s.', received.magnetUri)
66 return callback(null) 93
94 // This is a fake object, we just use the magnetUri in this project
95 var torrent = {
96 magnetURI: received.magnetUri
67 } 97 }
68 98
69 function callback () { 99 ipc.server.off(event_key)
70 var to_send = {} 100 callback(torrent)
71 ipc.of[nodeKey].emit(nodeKey + '.removeDone.' + _id, to_send) 101 })
102
103 ipc.server.broadcast(processKey + '.seed', data)
104 }
105
106 function add (magnetUri, callback) {
107 var data = {
108 _id: magnetUri,
109 args: {
110 magnetUri: magnetUri
72 } 111 }
73 } 112 }
74 113
75 console.log('Configuration: ' + host + ':' + port) 114 if (!webtorrent.silent) logger.debug('Node wants to add ' + data._id)
76 console.log('Connecting to IPC...')
77 115
78 ipc.connectTo(nodeKey, function () { 116 // Finish signal
79 ipc.of[nodeKey].on(processKey + '.seed', seed) 117 var event_key = nodeKey + '.addDone.' + data._id
80 ipc.of[nodeKey].on(processKey + '.add', add) 118 ipc.server.on(event_key, function (received) {
81 ipc.of[nodeKey].on(processKey + '.remove', remove) 119 if (!webtorrent.silent) logger.debug('Process added torrent.')
120
121 // This is a fake object, we just use the magnetUri in this project
122 var torrent = {
123 files: received.files
124 }
82 125
83 ipc.of[nodeKey].emit(processKey + '.ready') 126 ipc.server.off(event_key)
84 console.log('Ready.') 127 callback(torrent)
85 }) 128 })
86 129
87 process.on('uncaughtException', function (e) { 130 ipc.server.broadcast(processKey + '.add', data)
88 ipc.of[nodeKey].emit(processKey + '.exception', { exception: e }) 131 }
132
133 function remove (magnetUri, callback) {
134 var data = {
135 _id: magnetUri,
136 args: {
137 magnetUri: magnetUri
138 }
139 }
140
141 if (!webtorrent.silent) logger.debug('Node wants to stop seeding %s.', data._id)
142
143 // Finish signal
144 var event_key = nodeKey + '.removeDone.' + data._id
145 ipc.server.on(event_key, function (received) {
146 if (!webtorrent.silent) logger.debug('Process removed torrent %s.', data._id)
147
148 var err = null
149 if (received.err) err = received.err
150
151 ipc.server.off(event_key)
152 callback(err)
89 }) 153 })
154
155 ipc.server.broadcast(processKey + '.remove', data)
90 } 156 }
91 157
92 // --------------------------------------------------------------------------- 158 // ---------------------------------------------------------------------------