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var auto = require('run-auto')
var DHT = require('bittorrent-dht/server')
var path = require('path')
var fs = require('fs')
var parseTorrent = require('parse-torrent')
var test = require('tape')
var WebTorrent = require('../')
var leavesPath = path.resolve(__dirname, 'content', 'Leaves of Grass by Walt Whitman.epub')
var leavesFile = fs.readFileSync(leavesPath)
var leavesTorrent = fs.readFileSync(path.resolve(__dirname, 'torrents', 'leaves.torrent'))
var leavesParsed = parseTorrent(leavesTorrent)
// remove trackers from .torrent file
leavesParsed.announce = []
test('Download using DHT (via magnet uri)', function (t) {
t.plan(10)
var dhtServer = new DHT({ bootstrap: false })
dhtServer.on('error', function (err) { t.fail(err) })
dhtServer.on('warning', function (err) { t.fail(err) })
var magnetUri = 'magnet:?xt=urn:btih:' + leavesParsed.infoHash
auto({
dhtPort: function (cb) {
dhtServer.listen(function () {
var port = dhtServer.address().port
cb(null, port)
})
},
client1: ['dhtPort', function (cb, r) {
var client1 = new WebTorrent({
tracker: false,
dht: { bootstrap: '127.0.0.1:' + r.dhtPort }
})
client1.on('error', function (err) { t.fail(err) })
client1.on('warning', function (err) { t.fail(err) })
var announced = false
var loaded = false
function maybeDone () {
if (announced && loaded) cb(null, client1)
}
var torrent = client1.add(leavesParsed)
torrent.on('dhtAnnounce', function () {
announced = true
maybeDone()
})
torrent.on('ready', function () {
// torrent metadata has been fetched -- sanity check it
t.equal(torrent.name, 'Leaves of Grass by Walt Whitman.epub')
var names = [ 'Leaves of Grass by Walt Whitman.epub' ]
t.deepEqual(torrent.files.map(function (file) { return file.name }), names)
torrent.load(fs.createReadStream(leavesPath), function (err) {
t.error(err)
loaded = true
maybeDone()
})
})
}],
client2: ['client1', function (cb, r) {
var client2 = new WebTorrent({
tracker: false,
dht: { bootstrap: '127.0.0.1:' + r.dhtPort }
})
client2.on('error', function (err) { t.fail(err) })
client2.on('warning', function (err) { t.fail(err) })
var gotBuffer = false
var gotDone = false
function maybeDone () {
if (gotBuffer && gotDone) cb(null, client2)
}
client2.add(magnetUri, function (torrent) {
torrent.files[0].getBuffer(function (err, buf) {
t.error(err)
t.deepEqual(buf, leavesFile, 'downloaded correct content')
gotBuffer = true
maybeDone()
})
torrent.once('done', function () {
t.pass('client2 downloaded torrent from client1')
gotDone = true
maybeDone()
})
})
}]
}, function (err, r) {
t.error(err)
r.client1.destroy(function () {
t.pass('client1 destroyed')
})
r.client2.destroy(function () {
t.pass('client2 destroyed')
})
dhtServer.destroy(function () {
t.pass('dht server destroyed')
})
})
})
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