mirror of
https://github.com/logos-storage/bittorrent-tracker.git
synced 2026-01-07 23:43:09 +00:00
Merge pull request #295 from jimmywarting/modernize_server.js
Modernize server.js
This commit is contained in:
Diego Rodríguez Baquero
GitHub
commit
e21a3809f7
530
server.js
530
server.js
@ -1,24 +1,19 @@
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module.exports = Server
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const { Buffer } = require('safe-buffer')
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const bencode = require('bencode')
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const debug = require('debug')('bittorrent-tracker:server')
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const dgram = require('dgram')
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const EventEmitter = require('events')
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const http = require('http')
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const peerid = require('bittorrent-peerid')
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const series = require('run-series')
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const string2compact = require('string2compact')
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const WebSocketServer = require('ws').Server
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var Buffer = require('safe-buffer').Buffer
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var bencode = require('bencode')
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var debug = require('debug')('bittorrent-tracker:server')
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var dgram = require('dgram')
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var EventEmitter = require('events').EventEmitter
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var http = require('http')
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var inherits = require('inherits')
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var peerid = require('bittorrent-peerid')
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var series = require('run-series')
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var string2compact = require('string2compact')
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var WebSocketServer = require('ws').Server
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var common = require('./lib/common')
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var Swarm = require('./lib/server/swarm')
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var parseHttpRequest = require('./lib/server/parse-http')
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var parseUdpRequest = require('./lib/server/parse-udp')
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var parseWebSocketRequest = require('./lib/server/parse-websocket')
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inherits(Server, EventEmitter)
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const common = require('./lib/common')
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const Swarm = require('./lib/server/swarm')
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const parseHttpRequest = require('./lib/server/parse-http')
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const parseUdpRequest = require('./lib/server/parse-udp')
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const parseWebSocketRequest = require('./lib/server/parse-websocket')
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/**
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* BitTorrent tracker server.
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@ -36,80 +31,77 @@ inherits(Server, EventEmitter)
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* @param {boolean} opts.stats enable web-based statistics? (default: true)
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* @param {function} opts.filter black/whitelist fn for disallowing/allowing torrents
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*/
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function Server (opts) {
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var self = this
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if (!(self instanceof Server)) return new Server(opts)
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EventEmitter.call(self)
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if (!opts) opts = {}
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class Server extends EventEmitter {
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constructor (opts = {}) {
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super()
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debug('new server %s', JSON.stringify(opts))
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self.intervalMs = opts.interval
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this.intervalMs = opts.interval
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? opts.interval
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: 10 * 60 * 1000 // 10 min
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self._trustProxy = !!opts.trustProxy
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if (typeof opts.filter === 'function') self._filter = opts.filter
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this._trustProxy = !!opts.trustProxy
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if (typeof opts.filter === 'function') this._filter = opts.filter
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self.peersCacheLength = opts.peersCacheLength
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self.peersCacheTtl = opts.peersCacheTtl
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this.peersCacheLength = opts.peersCacheLength
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this.peersCacheTtl = opts.peersCacheTtl
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self._listenCalled = false
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self.listening = false
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self.destroyed = false
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self.torrents = {}
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this._listenCalled = false
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this.listening = false
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this.destroyed = false
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this.torrents = {}
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self.http = null
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self.udp4 = null
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self.udp6 = null
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self.ws = null
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this.http = null
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this.udp4 = null
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this.udp6 = null
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this.ws = null
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// start an http tracker unless the user explictly says no
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if (opts.http !== false) {
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self.http = http.createServer()
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self.http.on('error', function (err) { self._onError(err) })
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self.http.on('listening', onListening)
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this.http = http.createServer()
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this.http.on('error', err => { this._onError(err) })
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this.http.on('listening', onListening)
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// Add default http request handler on next tick to give user the chance to add
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// their own handler first. Handle requests untouched by user's handler.
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process.nextTick(function () {
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self.http.on('request', function (req, res) {
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process.nextTick(() => {
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this.http.on('request', (req, res) => {
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if (res.headersSent) return
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self.onHttpRequest(req, res)
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this.onHttpRequest(req, res)
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})
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})
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}
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// start a udp tracker unless the user explicitly says no
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if (opts.udp !== false) {
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var isNode10 = /^v0.10./.test(process.version)
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const isNode10 = /^v0.10./.test(process.version)
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self.udp4 = self.udp = dgram.createSocket(
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this.udp4 = this.udp = dgram.createSocket(
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isNode10 ? 'udp4' : { type: 'udp4', reuseAddr: true }
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)
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self.udp4.on('message', function (msg, rinfo) { self.onUdpRequest(msg, rinfo) })
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self.udp4.on('error', function (err) { self._onError(err) })
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self.udp4.on('listening', onListening)
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this.udp4.on('message', (msg, rinfo) => { this.onUdpRequest(msg, rinfo) })
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this.udp4.on('error', err => { this._onError(err) })
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this.udp4.on('listening', onListening)
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self.udp6 = dgram.createSocket(
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this.udp6 = dgram.createSocket(
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isNode10 ? 'udp6' : { type: 'udp6', reuseAddr: true }
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)
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self.udp6.on('message', function (msg, rinfo) { self.onUdpRequest(msg, rinfo) })
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self.udp6.on('error', function (err) { self._onError(err) })
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self.udp6.on('listening', onListening)
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this.udp6.on('message', (msg, rinfo) => { this.onUdpRequest(msg, rinfo) })
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this.udp6.on('error', err => { this._onError(err) })
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this.udp6.on('listening', onListening)
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}
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// start a websocket tracker (for WebTorrent) unless the user explicitly says no
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if (opts.ws !== false) {
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if (!self.http) {
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self.http = http.createServer()
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self.http.on('error', function (err) { self._onError(err) })
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self.http.on('listening', onListening)
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if (!this.http) {
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this.http = http.createServer()
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this.http.on('error', err => { this._onError(err) })
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this.http.on('listening', onListening)
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// Add default http request handler on next tick to give user the chance to add
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// their own handler first. Handle requests untouched by user's handler.
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process.nextTick(function () {
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self.http.on('request', function (req, res) {
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process.nextTick(() => {
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this.http.on('request', (req, res) => {
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if (res.headersSent) return
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// For websocket trackers, we only need to handle the UPGRADE http method.
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// Return 404 for all other request types.
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@ -118,41 +110,41 @@ function Server (opts) {
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})
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})
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}
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self.ws = new WebSocketServer({
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server: self.http,
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this.ws = new WebSocketServer({
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server: this.http,
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perMessageDeflate: false,
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clientTracking: false
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})
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self.ws.address = function () {
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return self.http.address()
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this.ws.address = () => {
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return this.http.address()
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}
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self.ws.on('error', function (err) { self._onError(err) })
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self.ws.on('connection', function (socket, req) {
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this.ws.on('error', err => { this._onError(err) })
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this.ws.on('connection', (socket, req) => {
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// Note: socket.upgradeReq was removed in ws@3.0.0, so re-add it.
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// https://github.com/websockets/ws/pull/1099
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socket.upgradeReq = req
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self.onWebSocketConnection(socket)
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this.onWebSocketConnection(socket)
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})
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}
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if (opts.stats !== false) {
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if (!self.http) {
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self.http = http.createServer()
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self.http.on('error', function (err) { self._onError(err) })
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self.http.on('listening', onListening)
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if (!this.http) {
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this.http = http.createServer()
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this.http.on('error', err => { this._onError(err) })
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this.http.on('listening', onListening)
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}
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// Http handler for '/stats' route
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self.http.on('request', function (req, res) {
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this.http.on('request', (req, res) => {
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if (res.headersSent) return
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var infoHashes = Object.keys(self.torrents)
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var activeTorrents = 0
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var allPeers = {}
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const infoHashes = Object.keys(this.torrents)
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let activeTorrents = 0
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const allPeers = {}
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function countPeers (filterFunction) {
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var count = 0
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var key
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let count = 0
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let key
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for (key in allPeers) {
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if (allPeers.hasOwnProperty(key) && filterFunction(allPeers[key])) {
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@ -164,17 +156,17 @@ function Server (opts) {
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}
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function groupByClient () {
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var clients = {}
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for (var key in allPeers) {
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const clients = {}
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for (const key in allPeers) {
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if (allPeers.hasOwnProperty(key)) {
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var peer = allPeers[key]
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const peer = allPeers[key]
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if (!clients[peer.client.client]) {
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clients[peer.client.client] = {}
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}
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var client = clients[peer.client.client]
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const client = clients[peer.client.client]
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// If the client is not known show 8 chars from peerId as version
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var version = peer.client.version || Buffer.from(peer.peerId, 'hex').toString().substring(0, 8)
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const version = peer.client.version || Buffer.from(peer.peerId, 'hex').toString().substring(0, 8)
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if (!client[version]) {
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client[version] = 0
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}
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@ -185,13 +177,13 @@ function Server (opts) {
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}
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function printClients (clients) {
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var html = '<ul>\n'
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for (var name in clients) {
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let html = '<ul>\n'
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for (const name in clients) {
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if (clients.hasOwnProperty(name)) {
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var client = clients[name]
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for (var version in client) {
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const client = clients[name]
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for (const version in client) {
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if (client.hasOwnProperty(version)) {
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html += '<li><strong>' + name + '</strong> ' + version + ' : ' + client[version] + '</li>\n'
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html += `<li><strong>${name}</strong> ${version} : ${client[version]}</li>\n`
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}
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}
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}
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@ -201,14 +193,14 @@ function Server (opts) {
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}
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if (req.method === 'GET' && (req.url === '/stats' || req.url === '/stats.json')) {
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infoHashes.forEach(function (infoHash) {
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var peers = self.torrents[infoHash].peers
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var keys = peers.keys
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infoHashes.forEach(infoHash => {
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const peers = this.torrents[infoHash].peers
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const keys = peers.keys
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if (keys.length > 0) activeTorrents++
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keys.forEach(function (peerId) {
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keys.forEach(peerId => {
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// Don't mark the peer as most recently used for stats
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var peer = peers.peek(peerId)
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const peer = peers.peek(peerId)
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if (peer == null) return // peers.peek() can evict the peer
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if (!allPeers.hasOwnProperty(peerId)) {
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@ -220,7 +212,7 @@ function Server (opts) {
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}
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}
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if (peer.ip.indexOf(':') >= 0) {
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if (peer.ip.includes(':')) {
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allPeers[peerId].ipv6 = true
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} else {
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allPeers[peerId].ipv4 = true
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@ -237,15 +229,15 @@ function Server (opts) {
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})
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})
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var isSeederOnly = function (peer) { return peer.seeder && peer.leecher === false }
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var isLeecherOnly = function (peer) { return peer.leecher && peer.seeder === false }
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var isSeederAndLeecher = function (peer) { return peer.seeder && peer.leecher }
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var isIPv4 = function (peer) { return peer.ipv4 }
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var isIPv6 = function (peer) { return peer.ipv6 }
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const isSeederOnly = peer => { return peer.seeder && peer.leecher === false }
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const isLeecherOnly = peer => { return peer.leecher && peer.seeder === false }
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const isSeederAndLeecher = peer => { return peer.seeder && peer.leecher }
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const isIPv4 = peer => { return peer.ipv4 }
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const isIPv6 = peer => { return peer.ipv6 }
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var stats = {
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const stats = {
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torrents: infoHashes.length,
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activeTorrents: activeTorrents,
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activeTorrents,
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peersAll: Object.keys(allPeers).length,
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peersSeederOnly: countPeers(isSeederOnly),
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peersLeecherOnly: countPeers(isLeecherOnly),
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@ -259,22 +251,24 @@ function Server (opts) {
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res.write(JSON.stringify(stats))
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res.end()
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} else if (req.url === '/stats') {
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res.end('<h1>' + stats.torrents + ' torrents (' + stats.activeTorrents + ' active)</h1>\n' +
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'<h2>Connected Peers: ' + stats.peersAll + '</h2>\n' +
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'<h3>Peers Seeding Only: ' + stats.peersSeederOnly + '</h3>\n' +
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'<h3>Peers Leeching Only: ' + stats.peersLeecherOnly + '</h3>\n' +
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'<h3>Peers Seeding & Leeching: ' + stats.peersSeederAndLeecher + '</h3>\n' +
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'<h3>IPv4 Peers: ' + stats.peersIPv4 + '</h3>\n' +
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'<h3>IPv6 Peers: ' + stats.peersIPv6 + '</h3>\n' +
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'<h3>Clients:</h3>\n' +
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printClients(stats.clients)
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)
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res.end(`
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<h1>${stats.torrents} torrents (${stats.activeTorrents} active)</h1>
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<h2>Connected Peers: ${stats.peersAll}</h2>
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<h3>Peers Seeding Only: ${stats.peersSeederOnly}</h3>
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<h3>Peers Leeching Only: ${stats.peersLeecherOnly}</h3>
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<h3>Peers Seeding & Leeching: ${stats.peersSeederAndLeecher}</h3>
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<h3>IPv4 Peers: ${stats.peersIPv4}</h3>
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<h3>IPv6 Peers: ${stats.peersIPv6}</h3>
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<h3>Clients:</h3>
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${printClients(stats.clients)}
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`.replace(/^\s+/gm, '')) // trim left
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}
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}
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})
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}
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var num = !!self.http + !!self.udp4 + !!self.udp6
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let num = !!this.http + !!this.udp4 + !!this.udp6
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const self = this
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function onListening () {
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num -= 1
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if (num === 0) {
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@ -283,26 +277,21 @@ function Server (opts) {
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self.emit('listening')
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}
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}
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}
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}
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Server.Swarm = Swarm
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_onError (err) {
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this.emit('error', err)
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}
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|
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Server.prototype._onError = function (err) {
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var self = this
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self.emit('error', err)
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}
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listen (...args) /* port, hostname, onlistening */{
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if (this._listenCalled || this.listening) throw new Error('server already listening')
|
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this._listenCalled = true
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Server.prototype.listen = function (/* port, hostname, onlistening */) {
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var self = this
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const lastArg = args[args.length - 1]
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if (typeof lastArg === 'function') this.once('listening', lastArg)
|
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|
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if (self._listenCalled || self.listening) throw new Error('server already listening')
|
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self._listenCalled = true
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|
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var lastArg = arguments[arguments.length - 1]
|
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if (typeof lastArg === 'function') self.once('listening', lastArg)
|
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|
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var port = toNumber(arguments[0]) || arguments[0] || 0
|
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var hostname = typeof arguments[1] !== 'function' ? arguments[1] : undefined
|
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const port = toNumber(args[0]) || args[0] || 0
|
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const hostname = typeof args[1] !== 'function' ? args[1] : undefined
|
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|
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debug('listen (port: %o hostname: %o)', port, hostname)
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|
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@ -310,75 +299,69 @@ Server.prototype.listen = function (/* port, hostname, onlistening */) {
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return typeof obj === 'object' && obj !== null
|
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}
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|
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var httpPort = isObject(port) ? (port.http || 0) : port
|
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var udpPort = isObject(port) ? (port.udp || 0) : port
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const httpPort = isObject(port) ? (port.http || 0) : port
|
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const udpPort = isObject(port) ? (port.udp || 0) : port
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|
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// binding to :: only receives IPv4 connections if the bindv6only sysctl is set 0,
|
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// which is the default on many operating systems
|
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var httpHostname = isObject(hostname) ? hostname.http : hostname
|
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var udp4Hostname = isObject(hostname) ? hostname.udp : hostname
|
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var udp6Hostname = isObject(hostname) ? hostname.udp6 : hostname
|
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const httpHostname = isObject(hostname) ? hostname.http : hostname
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const udp4Hostname = isObject(hostname) ? hostname.udp : hostname
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const udp6Hostname = isObject(hostname) ? hostname.udp6 : hostname
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if (self.http) self.http.listen(httpPort, httpHostname)
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if (self.udp4) self.udp4.bind(udpPort, udp4Hostname)
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if (self.udp6) self.udp6.bind(udpPort, udp6Hostname)
|
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}
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if (this.http) this.http.listen(httpPort, httpHostname)
|
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if (this.udp4) this.udp4.bind(udpPort, udp4Hostname)
|
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if (this.udp6) this.udp6.bind(udpPort, udp6Hostname)
|
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}
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Server.prototype.close = function (cb) {
|
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var self = this
|
||||
if (!cb) cb = noop
|
||||
close (cb = noop) {
|
||||
debug('close')
|
||||
|
||||
self.listening = false
|
||||
self.destroyed = true
|
||||
this.listening = false
|
||||
this.destroyed = true
|
||||
|
||||
if (self.udp4) {
|
||||
if (this.udp4) {
|
||||
try {
|
||||
self.udp4.close()
|
||||
this.udp4.close()
|
||||
} catch (err) {}
|
||||
}
|
||||
|
||||
if (self.udp6) {
|
||||
if (this.udp6) {
|
||||
try {
|
||||
self.udp6.close()
|
||||
this.udp6.close()
|
||||
} catch (err) {}
|
||||
}
|
||||
|
||||
if (self.ws) {
|
||||
if (this.ws) {
|
||||
try {
|
||||
self.ws.close()
|
||||
this.ws.close()
|
||||
} catch (err) {}
|
||||
}
|
||||
|
||||
if (self.http) self.http.close(cb)
|
||||
if (this.http) this.http.close(cb)
|
||||
else cb(null)
|
||||
}
|
||||
}
|
||||
|
||||
Server.prototype.createSwarm = function (infoHash, cb) {
|
||||
var self = this
|
||||
createSwarm (infoHash, cb) {
|
||||
if (Buffer.isBuffer(infoHash)) infoHash = infoHash.toString('hex')
|
||||
|
||||
process.nextTick(function () {
|
||||
var swarm = self.torrents[infoHash] = new Server.Swarm(infoHash, self)
|
||||
process.nextTick(() => {
|
||||
const swarm = this.torrents[infoHash] = new Server.Swarm(infoHash, this)
|
||||
cb(null, swarm)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Server.prototype.getSwarm = function (infoHash, cb) {
|
||||
var self = this
|
||||
getSwarm (infoHash, cb) {
|
||||
if (Buffer.isBuffer(infoHash)) infoHash = infoHash.toString('hex')
|
||||
|
||||
process.nextTick(function () {
|
||||
cb(null, self.torrents[infoHash])
|
||||
process.nextTick(() => {
|
||||
cb(null, this.torrents[infoHash])
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Server.prototype.onHttpRequest = function (req, res, opts) {
|
||||
var self = this
|
||||
if (!opts) opts = {}
|
||||
opts.trustProxy = opts.trustProxy || self._trustProxy
|
||||
onHttpRequest (req, res, opts = {}) {
|
||||
opts.trustProxy = opts.trustProxy || this._trustProxy
|
||||
|
||||
var params
|
||||
let params
|
||||
try {
|
||||
params = parseHttpRequest(req, opts)
|
||||
params.httpReq = req
|
||||
@ -390,98 +373,92 @@ Server.prototype.onHttpRequest = function (req, res, opts) {
|
||||
|
||||
// even though it's an error for the client, it's just a warning for the server.
|
||||
// don't crash the server because a client sent bad data :)
|
||||
self.emit('warning', err)
|
||||
this.emit('warning', err)
|
||||
return
|
||||
}
|
||||
|
||||
self._onRequest(params, function (err, response) {
|
||||
this._onRequest(params, (err, response) => {
|
||||
if (err) {
|
||||
self.emit('warning', err)
|
||||
this.emit('warning', err)
|
||||
response = {
|
||||
'failure reason': err.message
|
||||
}
|
||||
}
|
||||
if (self.destroyed) return res.end()
|
||||
if (this.destroyed) return res.end()
|
||||
|
||||
delete response.action // only needed for UDP encoding
|
||||
res.end(bencode.encode(response))
|
||||
|
||||
if (params.action === common.ACTIONS.ANNOUNCE) {
|
||||
self.emit(common.EVENT_NAMES[params.event], params.addr, params)
|
||||
this.emit(common.EVENT_NAMES[params.event], params.addr, params)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Server.prototype.onUdpRequest = function (msg, rinfo) {
|
||||
var self = this
|
||||
|
||||
var params
|
||||
onUdpRequest (msg, rinfo) {
|
||||
let params
|
||||
try {
|
||||
params = parseUdpRequest(msg, rinfo)
|
||||
} catch (err) {
|
||||
self.emit('warning', err)
|
||||
this.emit('warning', err)
|
||||
// Do not reply for parsing errors
|
||||
return
|
||||
}
|
||||
|
||||
self._onRequest(params, function (err, response) {
|
||||
this._onRequest(params, (err, response) => {
|
||||
if (err) {
|
||||
self.emit('warning', err)
|
||||
this.emit('warning', err)
|
||||
response = {
|
||||
action: common.ACTIONS.ERROR,
|
||||
'failure reason': err.message
|
||||
}
|
||||
}
|
||||
if (self.destroyed) return
|
||||
if (this.destroyed) return
|
||||
|
||||
response.transactionId = params.transactionId
|
||||
response.connectionId = params.connectionId
|
||||
|
||||
var buf = makeUdpPacket(response)
|
||||
const buf = makeUdpPacket(response)
|
||||
|
||||
try {
|
||||
var udp = (rinfo.family === 'IPv4') ? self.udp4 : self.udp6
|
||||
const udp = (rinfo.family === 'IPv4') ? this.udp4 : this.udp6
|
||||
udp.send(buf, 0, buf.length, rinfo.port, rinfo.address)
|
||||
} catch (err) {
|
||||
self.emit('warning', err)
|
||||
this.emit('warning', err)
|
||||
}
|
||||
|
||||
if (params.action === common.ACTIONS.ANNOUNCE) {
|
||||
self.emit(common.EVENT_NAMES[params.event], params.addr, params)
|
||||
this.emit(common.EVENT_NAMES[params.event], params.addr, params)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Server.prototype.onWebSocketConnection = function (socket, opts) {
|
||||
var self = this
|
||||
if (!opts) opts = {}
|
||||
opts.trustProxy = opts.trustProxy || self._trustProxy
|
||||
onWebSocketConnection (socket, opts = {}) {
|
||||
opts.trustProxy = opts.trustProxy || this._trustProxy
|
||||
|
||||
socket.peerId = null // as hex
|
||||
socket.infoHashes = [] // swarms that this socket is participating in
|
||||
socket.onSend = function (err) {
|
||||
self._onWebSocketSend(socket, err)
|
||||
socket.onSend = err => {
|
||||
this._onWebSocketSend(socket, err)
|
||||
}
|
||||
|
||||
socket.onMessageBound = function (params) {
|
||||
self._onWebSocketRequest(socket, opts, params)
|
||||
socket.onMessageBound = params => {
|
||||
this._onWebSocketRequest(socket, opts, params)
|
||||
}
|
||||
socket.on('message', socket.onMessageBound)
|
||||
|
||||
socket.onErrorBound = function (err) {
|
||||
self._onWebSocketError(socket, err)
|
||||
socket.onErrorBound = err => {
|
||||
this._onWebSocketError(socket, err)
|
||||
}
|
||||
socket.on('error', socket.onErrorBound)
|
||||
|
||||
socket.onCloseBound = function () {
|
||||
self._onWebSocketClose(socket)
|
||||
socket.onCloseBound = () => {
|
||||
this._onWebSocketClose(socket)
|
||||
}
|
||||
socket.on('close', socket.onCloseBound)
|
||||
}
|
||||
|
||||
Server.prototype._onWebSocketRequest = function (socket, opts, params) {
|
||||
var self = this
|
||||
}
|
||||
|
||||
_onWebSocketRequest (socket, opts, params) {
|
||||
try {
|
||||
params = parseWebSocketRequest(socket, opts, params)
|
||||
} catch (err) {
|
||||
@ -491,14 +468,14 @@ Server.prototype._onWebSocketRequest = function (socket, opts, params) {
|
||||
|
||||
// even though it's an error for the client, it's just a warning for the server.
|
||||
// don't crash the server because a client sent bad data :)
|
||||
self.emit('warning', err)
|
||||
this.emit('warning', err)
|
||||
return
|
||||
}
|
||||
|
||||
if (!socket.peerId) socket.peerId = params.peer_id // as hex
|
||||
|
||||
self._onRequest(params, function (err, response) {
|
||||
if (self.destroyed || socket.destroyed) return
|
||||
this._onRequest(params, (err, response) => {
|
||||
if (this.destroyed || socket.destroyed) return
|
||||
if (err) {
|
||||
socket.send(JSON.stringify({
|
||||
action: params.action === common.ACTIONS.ANNOUNCE ? 'announce' : 'scrape',
|
||||
@ -506,25 +483,25 @@ Server.prototype._onWebSocketRequest = function (socket, opts, params) {
|
||||
info_hash: common.hexToBinary(params.info_hash)
|
||||
}), socket.onSend)
|
||||
|
||||
self.emit('warning', err)
|
||||
this.emit('warning', err)
|
||||
return
|
||||
}
|
||||
|
||||
response.action = params.action === common.ACTIONS.ANNOUNCE ? 'announce' : 'scrape'
|
||||
|
||||
var peers
|
||||
let peers
|
||||
if (response.action === 'announce') {
|
||||
peers = response.peers
|
||||
delete response.peers
|
||||
|
||||
if (socket.infoHashes.indexOf(params.info_hash) === -1) {
|
||||
if (!socket.infoHashes.includes(params.info_hash)) {
|
||||
socket.infoHashes.push(params.info_hash)
|
||||
}
|
||||
|
||||
response.info_hash = common.hexToBinary(params.info_hash)
|
||||
|
||||
// WebSocket tracker should have a shorter interval – default: 2 minutes
|
||||
response.interval = Math.ceil(self.intervalMs / 1000 / 5)
|
||||
response.interval = Math.ceil(this.intervalMs / 1000 / 5)
|
||||
}
|
||||
|
||||
// Skip sending update back for 'answer' announce messages – not needed
|
||||
@ -536,7 +513,7 @@ Server.prototype._onWebSocketRequest = function (socket, opts, params) {
|
||||
if (Array.isArray(params.offers)) {
|
||||
debug('got %s offers from %s', params.offers.length, params.peer_id)
|
||||
debug('got %s peers from swarm %s', peers.length, params.info_hash)
|
||||
peers.forEach(function (peer, i) {
|
||||
peers.forEach((peer, i) => {
|
||||
peer.socket.send(JSON.stringify({
|
||||
action: 'announce',
|
||||
offer: params.offers[i].offer,
|
||||
@ -548,19 +525,26 @@ Server.prototype._onWebSocketRequest = function (socket, opts, params) {
|
||||
})
|
||||
}
|
||||
|
||||
const done = () => {
|
||||
// emit event once the announce is fully "processed"
|
||||
if (params.action === common.ACTIONS.ANNOUNCE) {
|
||||
this.emit(common.EVENT_NAMES[params.event], params.peer_id, params)
|
||||
}
|
||||
}
|
||||
|
||||
if (params.answer) {
|
||||
debug('got answer %s from %s', JSON.stringify(params.answer), params.peer_id)
|
||||
|
||||
self.getSwarm(params.info_hash, function (err, swarm) {
|
||||
if (self.destroyed) return
|
||||
if (err) return self.emit('warning', err)
|
||||
this.getSwarm(params.info_hash, (err, swarm) => {
|
||||
if (this.destroyed) return
|
||||
if (err) return this.emit('warning', err)
|
||||
if (!swarm) {
|
||||
return self.emit('warning', new Error('no swarm with that `info_hash`'))
|
||||
return this.emit('warning', new Error('no swarm with that `info_hash`'))
|
||||
}
|
||||
// Mark the destination peer as recently used in cache
|
||||
var toPeer = swarm.peers.get(params.to_peer_id)
|
||||
const toPeer = swarm.peers.get(params.to_peer_id)
|
||||
if (!toPeer) {
|
||||
return self.emit('warning', new Error('no peer with that `to_peer_id`'))
|
||||
return this.emit('warning', new Error('no peer with that `to_peer_id`'))
|
||||
}
|
||||
|
||||
toPeer.socket.send(JSON.stringify({
|
||||
@ -577,29 +561,20 @@ Server.prototype._onWebSocketRequest = function (socket, opts, params) {
|
||||
} else {
|
||||
done()
|
||||
}
|
||||
|
||||
function done () {
|
||||
// emit event once the announce is fully "processed"
|
||||
if (params.action === common.ACTIONS.ANNOUNCE) {
|
||||
self.emit(common.EVENT_NAMES[params.event], params.peer_id, params)
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Server.prototype._onWebSocketSend = function (socket, err) {
|
||||
var self = this
|
||||
if (err) self._onWebSocketError(socket, err)
|
||||
}
|
||||
_onWebSocketSend (socket, err) {
|
||||
if (err) this._onWebSocketError(socket, err)
|
||||
}
|
||||
|
||||
Server.prototype._onWebSocketClose = function (socket) {
|
||||
var self = this
|
||||
_onWebSocketClose (socket) {
|
||||
debug('websocket close %s', socket.peerId)
|
||||
socket.destroyed = true
|
||||
|
||||
if (socket.peerId) {
|
||||
socket.infoHashes.slice(0).forEach(function (infoHash) {
|
||||
var swarm = self.torrents[infoHash]
|
||||
socket.infoHashes.slice(0).forEach(infoHash => {
|
||||
const swarm = this.torrents[infoHash]
|
||||
if (swarm) {
|
||||
swarm.announce({
|
||||
type: 'ws',
|
||||
@ -632,43 +607,41 @@ Server.prototype._onWebSocketClose = function (socket) {
|
||||
socket.removeListener('close', socket.onCloseBound)
|
||||
}
|
||||
socket.onCloseBound = null
|
||||
}
|
||||
}
|
||||
|
||||
Server.prototype._onWebSocketError = function (socket, err) {
|
||||
var self = this
|
||||
_onWebSocketError (socket, err) {
|
||||
debug('websocket error %s', err.message || err)
|
||||
self.emit('warning', err)
|
||||
self._onWebSocketClose(socket)
|
||||
}
|
||||
this.emit('warning', err)
|
||||
this._onWebSocketClose(socket)
|
||||
}
|
||||
|
||||
Server.prototype._onRequest = function (params, cb) {
|
||||
var self = this
|
||||
_onRequest (params, cb) {
|
||||
if (params && params.action === common.ACTIONS.CONNECT) {
|
||||
cb(null, { action: common.ACTIONS.CONNECT })
|
||||
} else if (params && params.action === common.ACTIONS.ANNOUNCE) {
|
||||
self._onAnnounce(params, cb)
|
||||
this._onAnnounce(params, cb)
|
||||
} else if (params && params.action === common.ACTIONS.SCRAPE) {
|
||||
self._onScrape(params, cb)
|
||||
this._onScrape(params, cb)
|
||||
} else {
|
||||
cb(new Error('Invalid action'))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Server.prototype._onAnnounce = function (params, cb) {
|
||||
var self = this
|
||||
_onAnnounce (params, cb) {
|
||||
const self = this
|
||||
|
||||
if (self._filter) {
|
||||
self._filter(params.info_hash, params, function (err) {
|
||||
if (this._filter) {
|
||||
this._filter(params.info_hash, params, err => {
|
||||
// Presence of `err` means that this announce request is disallowed
|
||||
if (err) return cb(err)
|
||||
|
||||
getOrCreateSwarm(function (err, swarm) {
|
||||
getOrCreateSwarm((err, swarm) => {
|
||||
if (err) return cb(err)
|
||||
announce(swarm)
|
||||
})
|
||||
})
|
||||
} else {
|
||||
getOrCreateSwarm(function (err, swarm) {
|
||||
getOrCreateSwarm((err, swarm) => {
|
||||
if (err) return cb(err)
|
||||
announce(swarm)
|
||||
})
|
||||
@ -676,10 +649,10 @@ Server.prototype._onAnnounce = function (params, cb) {
|
||||
|
||||
// Get existing swarm, or create one if one does not exist
|
||||
function getOrCreateSwarm (cb) {
|
||||
self.getSwarm(params.info_hash, function (err, swarm) {
|
||||
self.getSwarm(params.info_hash, (err, swarm) => {
|
||||
if (err) return cb(err)
|
||||
if (swarm) return cb(null, swarm)
|
||||
self.createSwarm(params.info_hash, function (err, swarm) {
|
||||
self.createSwarm(params.info_hash, (err, swarm) => {
|
||||
if (err) return cb(err)
|
||||
cb(null, swarm)
|
||||
})
|
||||
@ -688,30 +661,30 @@ Server.prototype._onAnnounce = function (params, cb) {
|
||||
|
||||
function announce (swarm) {
|
||||
if (!params.event || params.event === 'empty') params.event = 'update'
|
||||
swarm.announce(params, function (err, response) {
|
||||
swarm.announce(params, (err, response) => {
|
||||
if (err) return cb(err)
|
||||
|
||||
if (!response.action) response.action = common.ACTIONS.ANNOUNCE
|
||||
if (!response.interval) response.interval = Math.ceil(self.intervalMs / 1000)
|
||||
|
||||
if (params.compact === 1) {
|
||||
var peers = response.peers
|
||||
const peers = response.peers
|
||||
|
||||
// Find IPv4 peers
|
||||
response.peers = string2compact(peers.filter(function (peer) {
|
||||
response.peers = string2compact(peers.filter(peer => {
|
||||
return common.IPV4_RE.test(peer.ip)
|
||||
}).map(function (peer) {
|
||||
return peer.ip + ':' + peer.port
|
||||
}).map(peer => {
|
||||
return `${peer.ip}:${peer.port}`
|
||||
}))
|
||||
// Find IPv6 peers
|
||||
response.peers6 = string2compact(peers.filter(function (peer) {
|
||||
response.peers6 = string2compact(peers.filter(peer => {
|
||||
return common.IPV6_RE.test(peer.ip)
|
||||
}).map(function (peer) {
|
||||
return '[' + peer.ip + ']:' + peer.port
|
||||
}).map(peer => {
|
||||
return `[${peer.ip}]:${peer.port}`
|
||||
}))
|
||||
} else if (params.compact === 0) {
|
||||
// IPv6 peers are not separate for non-compact responses
|
||||
response.peers = response.peers.map(function (peer) {
|
||||
response.peers = response.peers.map(peer => {
|
||||
return {
|
||||
'peer id': common.hexToBinary(peer.peerId),
|
||||
ip: peer.ip,
|
||||
@ -723,45 +696,43 @@ Server.prototype._onAnnounce = function (params, cb) {
|
||||
cb(null, response)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Server.prototype._onScrape = function (params, cb) {
|
||||
var self = this
|
||||
}
|
||||
|
||||
_onScrape (params, cb) {
|
||||
if (params.info_hash == null) {
|
||||
// if info_hash param is omitted, stats for all torrents are returned
|
||||
// TODO: make this configurable!
|
||||
params.info_hash = Object.keys(self.torrents)
|
||||
params.info_hash = Object.keys(this.torrents)
|
||||
}
|
||||
|
||||
series(params.info_hash.map(function (infoHash) {
|
||||
return function (cb) {
|
||||
self.getSwarm(infoHash, function (err, swarm) {
|
||||
series(params.info_hash.map(infoHash => {
|
||||
return cb => {
|
||||
this.getSwarm(infoHash, (err, swarm) => {
|
||||
if (err) return cb(err)
|
||||
if (swarm) {
|
||||
swarm.scrape(params, function (err, scrapeInfo) {
|
||||
swarm.scrape(params, (err, scrapeInfo) => {
|
||||
if (err) return cb(err)
|
||||
cb(null, {
|
||||
infoHash: infoHash,
|
||||
infoHash,
|
||||
complete: (scrapeInfo && scrapeInfo.complete) || 0,
|
||||
incomplete: (scrapeInfo && scrapeInfo.incomplete) || 0
|
||||
})
|
||||
})
|
||||
} else {
|
||||
cb(null, { infoHash: infoHash, complete: 0, incomplete: 0 })
|
||||
cb(null, { infoHash, complete: 0, incomplete: 0 })
|
||||
}
|
||||
})
|
||||
}
|
||||
}), function (err, results) {
|
||||
}), (err, results) => {
|
||||
if (err) return cb(err)
|
||||
|
||||
var response = {
|
||||
const response = {
|
||||
action: common.ACTIONS.SCRAPE,
|
||||
files: {},
|
||||
flags: { min_request_interval: Math.ceil(self.intervalMs / 1000) }
|
||||
flags: { min_request_interval: Math.ceil(this.intervalMs / 1000) }
|
||||
}
|
||||
|
||||
results.forEach(function (result) {
|
||||
results.forEach(result => {
|
||||
response.files[common.hexToBinary(result.infoHash)] = {
|
||||
complete: result.complete || 0,
|
||||
incomplete: result.incomplete || 0,
|
||||
@ -771,10 +742,13 @@ Server.prototype._onScrape = function (params, cb) {
|
||||
|
||||
cb(null, response)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Server.Swarm = Swarm
|
||||
|
||||
function makeUdpPacket (params) {
|
||||
var packet
|
||||
let packet
|
||||
switch (params.action) {
|
||||
case common.ACTIONS.CONNECT:
|
||||
packet = Buffer.concat([
|
||||
@ -794,12 +768,12 @@ function makeUdpPacket (params) {
|
||||
])
|
||||
break
|
||||
case common.ACTIONS.SCRAPE:
|
||||
var scrapeResponse = [
|
||||
const scrapeResponse = [
|
||||
common.toUInt32(common.ACTIONS.SCRAPE),
|
||||
common.toUInt32(params.transactionId)
|
||||
]
|
||||
for (var infoHash in params.files) {
|
||||
var file = params.files[infoHash]
|
||||
for (const infoHash in params.files) {
|
||||
const file = params.files[infoHash]
|
||||
scrapeResponse.push(
|
||||
common.toUInt32(file.complete),
|
||||
common.toUInt32(file.downloaded), // TODO: this only provides a lower-bound
|
||||
@ -816,7 +790,7 @@ function makeUdpPacket (params) {
|
||||
])
|
||||
break
|
||||
default:
|
||||
throw new Error('Action not implemented: ' + params.action)
|
||||
throw new Error(`Action not implemented: ${params.action}`)
|
||||
}
|
||||
return packet
|
||||
}
|
||||
@ -827,3 +801,5 @@ function toNumber (x) {
|
||||
}
|
||||
|
||||
function noop () {}
|
||||
|
||||
module.exports = Server
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user