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Provide IP and HTTP headers in both HTTP and Websocket server

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This commit is contained in:
Yoann Ciabaud 2016-03-03 11:10:54 +01:00
parent 9e02f8e5e7
commit 60f03b9529
4 changed files with 22 additions and 8 deletions
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1
lib/common-node.js
View File

@ -7,6 +7,7 @@ var querystring = require('querystring')
exports.IPV4_RE = /^[\d\.]+$/
exports.IPV6_RE = /^[\da-fA-F:]+$/
exports.REMOVE_IPV4_MAPPED_IPV6_RE = /^::ffff:/
exports.CONNECTION_ID = Buffer.concat([ toUInt32(0x417), toUInt32(0x27101980) ])
exports.ACTIONS = { CONNECT: 0, ANNOUNCE: 1, SCRAPE: 2, ERROR: 3 }

6
lib/server/parse-http.js
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@ -2,8 +2,6 @@ module.exports = parseHttpRequest
var common = require('../common')
var REMOVE_IPV4_MAPPED_IPV6_RE = /^::ffff:/
function parseHttpRequest (req, opts) {
if (!opts) opts = {}
var s = req.url.split('?')
@ -34,8 +32,10 @@ function parseHttpRequest (req, opts) {
params.ip = opts.trustProxy
? req.headers['x-forwarded-for'] || req.connection.remoteAddress
: req.connection.remoteAddress.replace(REMOVE_IPV4_MAPPED_IPV6_RE, '') // force ipv4
: req.connection.remoteAddress.replace(common.REMOVE_IPV4_MAPPED_IPV6_RE, '') // force ipv4
params.addr = (common.IPV6_RE.test(params.ip) ? '[' + params.ip + ']' : params.ip) + ':' + params.port
params.headers = req.headers
} else if (opts.action === 'scrape' || s[0] === '/scrape') {
params.action = common.ACTIONS.SCRAPE

13
lib/server/parse-websocket.js
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@ -2,7 +2,8 @@ module.exports = parseWebSocketRequest
var common = require('../common')
function parseWebSocketRequest (socket, params) {
function parseWebSocketRequest (socket, opts, params) {
if (!opts) opts = {}
params = JSON.parse(params) // may throw
params.action = common.ACTIONS.ANNOUNCE
@ -32,5 +33,15 @@ function parseWebSocketRequest (socket, params) {
)
params.compact = -1 // return full peer objects (used for websocket responses)
params.ip = opts.trustProxy
? socket.upgradeReq.headers['x-forwarded-for'] || socket.upgradeReq.connection.remoteAddress
: (socket.upgradeReq.connection.remoteAddress && socket.upgradeReq.connection.remoteAddress.replace(common.REMOVE_IPV4_MAPPED_IPV6_RE, '')) // force ipv4
params.port = socket.upgradeReq.connection.remotePort
if (params.port) {
params.addr = (common.IPV6_RE.test(params.ip) ? '[' + params.ip + ']' : params.ip) + ':' + params.port
}
params.headers = socket.upgradeReq.headers
return params
}

10
server.js
View File

@ -294,21 +294,23 @@ Server.prototype.onUdpRequest = function (msg, rinfo) {
})
}
Server.prototype.onWebSocketConnection = function (socket) {
Server.prototype.onWebSocketConnection = function (socket, opts) {
var self = this
if (!opts) opts = {}
opts.trustProxy = opts.trustProxy || self._trustProxy
socket.peerId = null // as hex
socket.infoHashes = []
socket.onSend = self._onWebSocketSend.bind(self, socket)
socket.on('message', self._onWebSocketRequest.bind(self, socket))
socket.on('message', self._onWebSocketRequest.bind(self, socket, opts))
socket.on('error', self._onWebSocketError.bind(self, socket))
socket.on('close', self._onWebSocketClose.bind(self, socket))
}
Server.prototype._onWebSocketRequest = function (socket, params) {
Server.prototype._onWebSocketRequest = function (socket, opts, params) {
var self = this
try {
params = parseWebSocketRequest(socket, params)
params = parseWebSocketRequest(socket, opts, params)
} catch (err) {
socket.send(JSON.stringify({
'failure reason': err.message