我需要在nodejs中设置一个示例bittorrent跟踪器,播种器和leecher。我已经写了所有代码,但它不起作用,我不知道为什么。我使用bittorrent-tracker启动了一个跟踪器,使用nt编写了torrent文件,并使用bittorrent-tracker作为播种器连接到跟踪器(bt-tracker同时具有客户端和服务器)。
最后,我启动了另一个只有torrent文件并连接到跟踪器的客户端。我能够看到torrent中的文件(在download / leecher客户端中)。但文件下载本身不会启动。
正在使用的代码: //跟踪器:
var Server = require('bittorrent-tracker').Server
var port=6881
var server = new Server({
udp: true, // enable udp server? [default=true]
http: true // enable http server? [default=true]
})
server.on('error', function (err) {
// fatal server error!
console.log(err.message)
})
server.on('warning', function (err) {
// client sent bad data. probably not a problem, just a buggy client.
console.log(err.message)
})
server.on('listening', function () {
console.log('tracker server is listening!')
})
// start tracker server listening!
server.listen(port)
// listen for individual tracker messages from peers:
server.on('start', function (addr, params) {
console.log('got start message from ' + addr)
console.log('params in the message: ' + JSON.stringify(params))
})
server.on('complete', function (addr, params) {})
server.on('update', function (addr, params) {})
server.on('stop', function (addr, params) {})
// get info hashes for all torrents in the tracker server
console.log(Object.keys(server.torrents))
// torrent文件编写器和播种器的代码
var nt=require('nt');
var fs=require('fs');
//var rs=nt.make('udp://tracker.publicbt.com:80');
//rs.pipe(fs.createWriteStream('param.torrent'));
function postWrite(){
var cl=require('bittorrent-tracker').Client;
var parseTorrent=require('parse-torrent');
var torrent=fs.readFileSync(__dirname + '/param.torrent');
var parsedTorrent=parseTorrent(torrent);
console.log(parsedTorrent);
var peerId = new Buffer('81276382172123141133')
var port = 6882
var client = new cl(peerId, port, parsedTorrent)
client.on('error', function (err) {
console.log(err.message)
// a tracker was unavailable or sent bad data to the client. you can probably ignore it
})
client.start()
client.on('update', function (data) {
console.log('got an announce response from tracker: ' + data.announce)
console.log('number of seeders in the swarm: ' + data.complete)
console.log('number of leechers in the swarm: ' + data.incomplete)
})
client.once('peer', function (addr) {
console.log('found a peer: ' + addr) // 85.10.239.191:48623
})
// announce that download has completed (and you are now a seeder)
client.complete();
client.update()
}
function writeTorrentFile() {
nt.makeWrite('param.torrent', 'udp://hola.127.0.0.1.xip.io:6881', '/Users/param/personal/nodejs/uploader/files',
// ['hello-world.txt'], function(err, torrent){
['hello-world.txt'], {}, function(err, torrent){
console.log(err);
console.log(torrent);
nt.read('param.torrent', function(err, torrent) {
if (err) throw err;
console.log('Info hash:', torrent.metadata.info);
});
postWrite();
});
}
writeTorrentFile();
// leecher的代码
var BitTorrentClient = require('bittorrent-client');
var fs = require('fs');
var file = fs.readFileSync(__dirname + '/param.torrent')
var client = BitTorrentClient({
maxPeers: 100, // Max number of peers to connect to (per torrent)
path: __dirname, // Where to save the torrent file data
dht: true, // Whether or not to enable DHT
verify: true // Verify previously stored data before starting
});
client.add(file);
client.on('torrent', function (torrent) {
// torrent metadata has been fetched
console.log(torrent.name)
torrent.files.forEach(function (file) {
console.log("selecting "+file.name+" for download");
console.log(file.path)
st=file.createReadStream()
st.on('data', function(chunk){
console.log(chunk)
});
})
})
leecher上的数据事件永远不会被调用 - 即使它进入了torrent的文件循环!
答案 0 :(得分:5)
您需要使用实际的torrent客户端来播种。现在,您只是使用bittorrent-tracker
,它只是告诉跟踪服务器您是播种机,但实际上并没有包含任何代码来向同行发送文件,事实上,甚至不听任何端口。要实际播种,您应该使用完整的torrent客户端。
在您的示例中,您已经在使用bittorrent-client
(由我创作),但我建议您继续使用webtorrent
,因为我不久前已弃用bittorrent-client
。< / p>
这里有一些种子文件的代码:
var WebTorrent = require('webtorrent')
var client = new WebTorrent()
client.seed('/path/to/file', function (torrent) {
console.log('Client is seeding:', torrent.magnetUri)
})
以下是client.seed
上的完整文档:https://github.com/feross/webtorrent/blob/master/docs/api.md#clientseedinput-opts-function-onseed-torrent-
答案 1 :(得分:1)
我想将文件名传递给createReadStream()
我想。无论如何,请检查“错误”是否有错误。事件被发出。
// ...
var st = file.createReadStream(file)
st.on('data', console.log);
st.on('error', console.error);