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import fs from 'fs'
import DHT from 'bittorrent-dht/server.js'
import fixtures from 'webtorrent-fixtures'
import MemoryChunkStore from 'memory-chunk-store'
import series from 'run-series'
import test from 'tape'
import WebTorrent from '../../index.js'
test('Download using DHT (via .torrent file)', t => {
t.plan(10)
const dhtServer = new DHT({ bootstrap: false })
dhtServer.on('error', err => { t.fail(err) })
dhtServer.on('warning', err => { t.fail(err) })
let client1, client2
series([
cb => {
dhtServer.listen(cb)
},
cb => {
let announced = false
let loaded = false
let noPeersFound = false
client1 = new WebTorrent({
tracker: false,
lsd: false,
dht: { bootstrap: `127.0.0.1:${dhtServer.address().port}` },
utPex: false
})
client1.dht.on('listening', () => {
t.equal(client1.dhtPort, client1.dht.address().port)
})
client1.on('error', err => { t.fail(err) })
client1.on('warning', err => { t.fail(err) })
const torrent = client1.add(fixtures.leaves.parsedTorrent, { store: MemoryChunkStore })
torrent.on('ready', () => {
// torrent metadata has been fetched -- sanity check it
t.equal(torrent.name, 'Leaves of Grass by Walt Whitman.epub')
const names = ['Leaves of Grass by Walt Whitman.epub']
t.deepEqual(torrent.files.map(file => file.name), names)
})
torrent.load(fs.createReadStream(fixtures.leaves.contentPath), err => {
loaded = true
maybeDone(err)
})
torrent.on('dhtAnnounce', () => {
announced = true
maybeDone(null)
})
torrent.on('noPeers', announceType => {
t.equal(announceType, 'dht', 'noPeers event seen with correct announceType')
noPeersFound = true
maybeDone(null)
})
function maybeDone (err) {
if ((announced && loaded && noPeersFound) || err) cb(err, client1)
}
},
cb => {
client2 = new WebTorrent({
tracker: false,
lsd: false,
dht: { bootstrap: `127.0.0.1:${dhtServer.address().port}` },
utPex: false
})
client2.on('error', err => { t.fail(err) })
client2.on('warning', err => { t.fail(err) })
client2.on('torrent', torrent => {
let torrentDone = false
let gotBuffer = false
torrent.files.forEach(file => {
file.getBuffer((err, buf) => {
if (err) throw err
t.deepEqual(buf, fixtures.leaves.content, 'downloaded correct content')
gotBuffer = true
maybeDone()
})
})
torrent.once('done', () => {
t.pass('client2 downloaded torrent from client1')
torrentDone = true
maybeDone()
})
function maybeDone () {
if (torrentDone && gotBuffer) cb(null)
}
})
client2.add(fixtures.leaves.parsedTorrent, { store: MemoryChunkStore })
}
], err => {
t.error(err)
client1.destroy(err => {
t.error(err, 'client1 destroyed')
})
client2.destroy(err => {
t.error(err, 'client2 destroyed')
})
dhtServer.destroy(err => {
t.error(err, 'dht server destroyed')
})
})
})
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