1 files changed, 241 insertions, 0 deletions
diff --git a/deps/npm/node_modules/tunnel-agent/index.js b/deps/npm/node_modules/tunnel-agent/index.js
new file mode 100644
index 0000000000..6a0d9642c9
--- /dev/null
+++ b/deps/npm/node_modules/tunnel-agent/index.js
@@ -0,0 +1,241 @@
+'use strict'
+
+var net = require('net')
+  , tls = require('tls')
+  , http = require('http')
+  , https = require('https')
+  , events = require('events')
+  , assert = require('assert')
+  , util = require('util')
+  ;
+
+exports.httpOverHttp = httpOverHttp
+exports.httpsOverHttp = httpsOverHttp
+exports.httpOverHttps = httpOverHttps
+exports.httpsOverHttps = httpsOverHttps
+
+
+function httpOverHttp(options) {
+  var agent = new TunnelingAgent(options)
+  agent.request = http.request
+  return agent
+}
+
+function httpsOverHttp(options) {
+  var agent = new TunnelingAgent(options)
+  agent.request = http.request
+  agent.createSocket = createSecureSocket
+  return agent
+}
+
+function httpOverHttps(options) {
+  var agent = new TunnelingAgent(options)
+  agent.request = https.request
+  return agent
+}
+
+function httpsOverHttps(options) {
+  var agent = new TunnelingAgent(options)
+  agent.request = https.request
+  agent.createSocket = createSecureSocket
+  return agent
+}
+
+
+function TunnelingAgent(options) {
+  var self = this
+  self.options = options || {}
+  self.proxyOptions = self.options.proxy || {}
+  self.maxSockets = self.options.maxSockets || http.Agent.defaultMaxSockets
+  self.requests = []
+  self.sockets = []
+
+  self.on('free', function onFree(socket, host, port) {
+    for (var i = 0, len = self.requests.length; i < len; ++i) {
+      var pending = self.requests[i]
+      if (pending.host === host && pending.port === port) {
+        // Detect the request to connect same origin server,
+        // reuse the connection.
+        self.requests.splice(i, 1)
+        pending.request.onSocket(socket)
+        return
+      }
+    }
+    socket.destroy()
+    self.removeSocket(socket)
+  })
+}
+util.inherits(TunnelingAgent, events.EventEmitter)
+
+TunnelingAgent.prototype.addRequest = function addRequest(req, options) {
+  var self = this
+
+   // Legacy API: addRequest(req, host, port, path)
+  if (typeof options === 'string') {
+    options = {
+      host: options,
+      port: arguments[2],
+      path: arguments[3]
+    };
+  }
+
+  if (self.sockets.length >= this.maxSockets) {
+    // We are over limit so we'll add it to the queue.
+    self.requests.push({host: options.host, port: options.port, request: req})
+    return
+  }
+
+  // If we are under maxSockets create a new one.
+  self.createConnection({host: options.host, port: options.port, request: req})
+}
+
+TunnelingAgent.prototype.createConnection = function createConnection(pending) {
+  var self = this
+
+  self.createSocket(pending, function(socket) {
+    socket.on('free', onFree)
+    socket.on('close', onCloseOrRemove)
+    socket.on('agentRemove', onCloseOrRemove)
+    pending.request.onSocket(socket)
+
+    function onFree() {
+      self.emit('free', socket, pending.host, pending.port)
+    }
+
+    function onCloseOrRemove(err) {
+      self.removeSocket(socket)
+      socket.removeListener('free', onFree)
+      socket.removeListener('close', onCloseOrRemove)
+      socket.removeListener('agentRemove', onCloseOrRemove)
+    }
+  })
+}
+
+TunnelingAgent.prototype.createSocket = function createSocket(options, cb) {
+  var self = this
+  var placeholder = {}
+  self.sockets.push(placeholder)
+
+  var connectOptions = mergeOptions({}, self.proxyOptions,
+    { method: 'CONNECT'
+    , path: options.host + ':' + options.port
+    , agent: false
+    }
+  )
+  if (connectOptions.proxyAuth) {
+    connectOptions.headers = connectOptions.headers || {}
+    connectOptions.headers['Proxy-Authorization'] = 'Basic ' +
+        new Buffer(connectOptions.proxyAuth).toString('base64')
+  }
+
+  debug('making CONNECT request')
+  var connectReq = self.request(connectOptions)
+  connectReq.useChunkedEncodingByDefault = false // for v0.6
+  connectReq.once('response', onResponse) // for v0.6
+  connectReq.once('upgrade', onUpgrade)   // for v0.6
+  connectReq.once('connect', onConnect)   // for v0.7 or later
+  connectReq.once('error', onError)
+  connectReq.end()
+
+  function onResponse(res) {
+    // Very hacky. This is necessary to avoid http-parser leaks.
+    res.upgrade = true
+  }
+
+  function onUpgrade(res, socket, head) {
+    // Hacky.
+    process.nextTick(function() {
+      onConnect(res, socket, head)
+    })
+  }
+
+  function onConnect(res, socket, head) {
+    connectReq.removeAllListeners()
+    socket.removeAllListeners()
+
+    if (res.statusCode === 200) {
+      assert.equal(head.length, 0)
+      debug('tunneling connection has established')
+      self.sockets[self.sockets.indexOf(placeholder)] = socket
+      cb(socket)
+    } else {
+      debug('tunneling socket could not be established, statusCode=%d', res.statusCode)
+      var error = new Error('tunneling socket could not be established, ' + 'statusCode=' + res.statusCode)
+      error.code = 'ECONNRESET'
+      options.request.emit('error', error)
+      self.removeSocket(placeholder)
+    }
+  }
+
+  function onError(cause) {
+    connectReq.removeAllListeners()
+
+    debug('tunneling socket could not be established, cause=%s\n', cause.message, cause.stack)
+    var error = new Error('tunneling socket could not be established, ' + 'cause=' + cause.message)
+    error.code = 'ECONNRESET'
+    options.request.emit('error', error)
+    self.removeSocket(placeholder)
+  }
+}
+
+TunnelingAgent.prototype.removeSocket = function removeSocket(socket) {
+  var pos = this.sockets.indexOf(socket)
+  if (pos === -1) return
+
+  this.sockets.splice(pos, 1)
+
+  var pending = this.requests.shift()
+  if (pending) {
+    // If we have pending requests and a socket gets closed a new one
+    // needs to be created to take over in the pool for the one that closed.
+    this.createConnection(pending)
+  }
+}
+
+function createSecureSocket(options, cb) {
+  var self = this
+  TunnelingAgent.prototype.createSocket.call(self, options, function(socket) {
+    // 0 is dummy port for v0.6
+    var secureSocket = tls.connect(0, mergeOptions({}, self.options,
+      { servername: options.host
+      , socket: socket
+      }
+    ))
+    self.sockets[self.sockets.indexOf(socket)] = secureSocket
+    cb(secureSocket)
+  })
+}
+
+
+function mergeOptions(target) {
+  for (var i = 1, len = arguments.length; i < len; ++i) {
+    var overrides = arguments[i]
+    if (typeof overrides === 'object') {
+      var keys = Object.keys(overrides)
+      for (var j = 0, keyLen = keys.length; j < keyLen; ++j) {
+        var k = keys[j]
+        if (overrides[k] !== undefined) {
+          target[k] = overrides[k]
+        }
+      }
+    }
+  }
+  return target
+}
+
+
+var debug
+if (process.env.NODE_DEBUG && /\btunnel\b/.test(process.env.NODE_DEBUG)) {
+  debug = function() {
+    var args = Array.prototype.slice.call(arguments)
+    if (typeof args[0] === 'string') {
+      args[0] = 'TUNNEL: ' + args[0]
+    } else {
+      args.unshift('TUNNEL:')
+    }
+    console.error.apply(console, args)
+  }
+} else {
+  debug = function() {}
+}
+exports.debug = debug // for test