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