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'use strict'
var http = require('http')
, https = require('https')
, url = require('url')
, util = require('util')
, stream = require('stream')
, zlib = require('zlib')
, bl = require('bl')
, hawk = require('hawk')
, aws = require('aws-sign2')
, httpSignature = require('http-signature')
, mime = require('mime-types')
, stringstream = require('stringstream')
, caseless = require('caseless')
, ForeverAgent = require('forever-agent')
, FormData = require('form-data')
, helpers = require('./lib/helpers')
, cookies = require('./lib/cookies')
, getProxyFromURI = require('./lib/getProxyFromURI')
, Querystring = require('./lib/querystring').Querystring
, Har = require('./lib/har').Har
, Auth = require('./lib/auth').Auth
, OAuth = require('./lib/oauth').OAuth
, Multipart = require('./lib/multipart').Multipart
, Redirect = require('./lib/redirect').Redirect
, Tunnel = require('./lib/tunnel').Tunnel
var safeStringify = helpers.safeStringify
, isReadStream = helpers.isReadStream
, toBase64 = helpers.toBase64
, defer = helpers.defer
, copy = helpers.copy
, version = helpers.version
, globalCookieJar = cookies.jar()
var globalPool = {}
function filterForNonReserved(reserved, options) {
// Filter out properties that are not reserved.
// Reserved values are passed in at call site.
var object = {}
for (var i in options) {
var notReserved = (reserved.indexOf(i) === -1)
if (notReserved) {
object[i] = options[i]
}
}
return object
}
function filterOutReservedFunctions(reserved, options) {
// Filter out properties that are functions and are reserved.
// Reserved values are passed in at call site.
var object = {}
for (var i in options) {
var isReserved = !(reserved.indexOf(i) === -1)
var isFunction = (typeof options[i] === 'function')
if (!(isReserved && isFunction)) {
object[i] = options[i]
}
}
return object
}
// Function for properly handling a connection error
function connectionErrorHandler(error) {
var socket = this
if (socket.res) {
if (socket.res.request) {
socket.res.request.emit('error', error)
} else {
socket.res.emit('error', error)
}
} else {
socket._httpMessage.emit('error', error)
}
}
// Return a simpler request object to allow serialization
function requestToJSON() {
var self = this
return {
uri: self.uri,
method: self.method,
headers: self.headers
}
}
// Return a simpler response object to allow serialization
function responseToJSON() {
var self = this
return {
statusCode: self.statusCode,
body: self.body,
headers: self.headers,
request: requestToJSON.call(self.request)
}
}
function Request (options) {
// if given the method property in options, set property explicitMethod to true
// extend the Request instance with any non-reserved properties
// remove any reserved functions from the options object
// set Request instance to be readable and writable
// call init
var self = this
// start with HAR, then override with additional options
if (options.har) {
self._har = new Har(self)
options = self._har.options(options)
}
stream.Stream.call(self)
var reserved = Object.keys(Request.prototype)
var nonReserved = filterForNonReserved(reserved, options)
stream.Stream.call(self)
util._extend(self, nonReserved)
options = filterOutReservedFunctions(reserved, options)
self.readable = true
self.writable = true
if (options.method) {
self.explicitMethod = true
}
self._qs = new Querystring(self)
self._auth = new Auth(self)
self._oauth = new OAuth(self)
self._multipart = new Multipart(self)
self._redirect = new Redirect(self)
self._tunnel = new Tunnel(self)
self.init(options)
}
util.inherits(Request, stream.Stream)
// Debugging
Request.debug = process.env.NODE_DEBUG && /\brequest\b/.test(process.env.NODE_DEBUG)
function debug() {
if (Request.debug) {
console.error('REQUEST %s', util.format.apply(util, arguments))
}
}
Request.prototype.debug = debug
Request.prototype.init = function (options) {
// init() contains all the code to setup the request object.
// the actual outgoing request is not started until start() is called
// this function is called from both the constructor and on redirect.
var self = this
if (!options) {
options = {}
}
self.headers = self.headers ? copy(self.headers) : {}
// Delete headers with value undefined since they break
// ClientRequest.OutgoingMessage.setHeader in node 0.12
for (var headerName in self.headers) {
if (typeof self.headers[headerName] === 'undefined') {
delete self.headers[headerName]
}
}
caseless.httpify(self, self.headers)
if (!self.method) {
self.method = options.method || 'GET'
}
if (!self.localAddress) {
self.localAddress = options.localAddress
}
self._qs.init(options)
debug(options)
if (!self.pool && self.pool !== false) {
self.pool = globalPool
}
self.dests = self.dests || []
self.__isRequestRequest = true
// Protect against double callback
if (!self._callback && self.callback) {
self._callback = self.callback
self.callback = function () {
if (self._callbackCalled) {
return // Print a warning maybe?
}
self._callbackCalled = true
self._callback.apply(self, arguments)
}
self.on('error', self.callback.bind())
self.on('complete', self.callback.bind(self, null))
}
// People use this property instead all the time, so support it
if (!self.uri && self.url) {
self.uri = self.url
delete self.url
}
// If there's a baseUrl, then use it as the base URL (i.e. uri must be
// specified as a relative path and is appended to baseUrl).
if (self.baseUrl) {
if (typeof self.baseUrl !== 'string') {
return self.emit('error', new Error('options.baseUrl must be a string'))
}
if (typeof self.uri !== 'string') {
return self.emit('error', new Error('options.uri must be a string when using options.baseUrl'))
}
if (self.uri.indexOf('//') === 0 || self.uri.indexOf('://') !== -1) {
return self.emit('error', new Error('options.uri must be a path when using options.baseUrl'))
}
// Handle all cases to make sure that there's only one slash between
// baseUrl and uri.
var baseUrlEndsWithSlash = self.baseUrl.lastIndexOf('/') === self.baseUrl.length - 1
var uriStartsWithSlash = self.uri.indexOf('/') === 0
if (baseUrlEndsWithSlash && uriStartsWithSlash) {
self.uri = self.baseUrl + self.uri.slice(1)
} else if (baseUrlEndsWithSlash || uriStartsWithSlash) {
self.uri = self.baseUrl + self.uri
} else if (self.uri === '') {
self.uri = self.baseUrl
} else {
self.uri = self.baseUrl + '/' + self.uri
}
delete self.baseUrl
}
// A URI is needed by this point, emit error if we haven't been able to get one
if (!self.uri) {
return self.emit('error', new Error('options.uri is a required argument'))
}
// If a string URI/URL was given, parse it into a URL object
if (typeof self.uri === 'string') {
self.uri = url.parse(self.uri)
}
// DEPRECATED: Warning for users of the old Unix Sockets URL Scheme
if (self.uri.protocol === 'unix:') {
return self.emit('error', new Error('`unix://` URL scheme is no longer supported. Please use the format `http://unix:SOCKET:PATH`'))
}
// Support Unix Sockets
if (self.uri.host === 'unix') {
self.enableUnixSocket()
}
if (self.strictSSL === false) {
self.rejectUnauthorized = false
}
if (!self.uri.pathname) {self.uri.pathname = '/'}
if (!(self.uri.host || (self.uri.hostname && self.uri.port)) && !self.uri.isUnix) {
// Invalid URI: it may generate lot of bad errors, like 'TypeError: Cannot call method `indexOf` of undefined' in CookieJar
// Detect and reject it as soon as possible
var faultyUri = url.format(self.uri)
var message = 'Invalid URI "' + faultyUri + '"'
if (Object.keys(options).length === 0) {
// No option ? This can be the sign of a redirect
// As this is a case where the user cannot do anything (they didn't call request directly with this URL)
// they should be warned that it can be caused by a redirection (can save some hair)
message += '. This can be caused by a crappy redirection.'
}
// This error was fatal
return self.emit('error', new Error(message))
}
if (!self.hasOwnProperty('proxy')) {
self.proxy = getProxyFromURI(self.uri)
}
self.tunnel = self._tunnel.isEnabled(options)
if (self.proxy) {
self._tunnel.setup(options)
}
self._redirect.onRequest(options)
self.setHost = false
if (!self.hasHeader('host')) {
var hostHeaderName = self.originalHostHeaderName || 'host'
self.setHeader(hostHeaderName, self.uri.hostname)
if (self.uri.port) {
if ( !(self.uri.port === 80 && self.uri.protocol === 'http:') &&
!(self.uri.port === 443 && self.uri.protocol === 'https:') ) {
self.setHeader(hostHeaderName, self.getHeader('host') + (':' + self.uri.port) )
}
}
self.setHost = true
}
self.jar(self._jar || options.jar)
if (!self.uri.port) {
if (self.uri.protocol === 'http:') {self.uri.port = 80}
else if (self.uri.protocol === 'https:') {self.uri.port = 443}
}
if (self.proxy && !self.tunnel) {
self.port = self.proxy.port
self.host = self.proxy.hostname
} else {
self.port = self.uri.port
self.host = self.uri.hostname
}
if (options.form) {
self.form(options.form)
}
if (options.formData) {
var formData = options.formData
var requestForm = self.form()
var appendFormValue = function (key, value) {
if (value.hasOwnProperty('value') && value.hasOwnProperty('options')) {
requestForm.append(key, value.value, value.options)
} else {
requestForm.append(key, value)
}
}
for (var formKey in formData) {
if (formData.hasOwnProperty(formKey)) {
var formValue = formData[formKey]
if (formValue instanceof Array) {
for (var j = 0; j < formValue.length; j++) {
appendFormValue(formKey, formValue[j])
}
} else {
appendFormValue(formKey, formValue)
}
}
}
}
if (options.qs) {
self.qs(options.qs)
}
if (self.uri.path) {
self.path = self.uri.path
} else {
self.path = self.uri.pathname + (self.uri.search || '')
}
if (self.path.length === 0) {
self.path = '/'
}
// Auth must happen last in case signing is dependent on other headers
if (options.aws) {
self.aws(options.aws)
}
if (options.hawk) {
self.hawk(options.hawk)
}
if (options.httpSignature) {
self.httpSignature(options.httpSignature)
}
if (options.auth) {
if (Object.prototype.hasOwnProperty.call(options.auth, 'username')) {
options.auth.user = options.auth.username
}
if (Object.prototype.hasOwnProperty.call(options.auth, 'password')) {
options.auth.pass = options.auth.password
}
self.auth(
options.auth.user,
options.auth.pass,
options.auth.sendImmediately,
options.auth.bearer
)
}
if (self.gzip && !self.hasHeader('accept-encoding')) {
self.setHeader('accept-encoding', 'gzip')
}
if (self.uri.auth && !self.hasHeader('authorization')) {
var uriAuthPieces = self.uri.auth.split(':').map(function(item) {return self._qs.unescape(item)})
self.auth(uriAuthPieces[0], uriAuthPieces.slice(1).join(':'), true)
}
if (!self.tunnel && self.proxy && self.proxy.auth && !self.hasHeader('proxy-authorization')) {
var proxyAuthPieces = self.proxy.auth.split(':').map(function(item) {return self._qs.unescape(item)})
var authHeader = 'Basic ' + toBase64(proxyAuthPieces.join(':'))
self.setHeader('proxy-authorization', authHeader)
}
if (self.proxy && !self.tunnel) {
self.path = (self.uri.protocol + '//' + self.uri.host + self.path)
}
if (options.json) {
self.json(options.json)
}
if (options.multipart) {
self.multipart(options.multipart)
}
if (options.time) {
self.timing = true
self.elapsedTime = self.elapsedTime || 0
}
function setContentLength () {
if (!self.hasHeader('content-length')) {
var length
if (typeof self.body === 'string') {
length = Buffer.byteLength(self.body)
}
else if (Array.isArray(self.body)) {
length = self.body.reduce(function (a, b) {return a + b.length}, 0)
}
else {
length = self.body.length
}
if (length) {
self.setHeader('content-length', length)
} else {
self.emit('error', new Error('Argument error, options.body.'))
}
}
}
if (self.body) {
setContentLength()
}
if (options.oauth) {
self.oauth(options.oauth)
} else if (self._oauth.params && self.hasHeader('authorization')) {
self.oauth(self._oauth.params)
}
var protocol = self.proxy && !self.tunnel ? self.proxy.protocol : self.uri.protocol
, defaultModules = {'http:':http, 'https:':https}
, httpModules = self.httpModules || {}
self.httpModule = httpModules[protocol] || defaultModules[protocol]
if (!self.httpModule) {
return self.emit('error', new Error('Invalid protocol: ' + protocol))
}
if (options.ca) {
self.ca = options.ca
}
if (!self.agent) {
if (options.agentOptions) {
self.agentOptions = options.agentOptions
}
if (options.agentClass) {
self.agentClass = options.agentClass
} else if (options.forever) {
var v = version()
// use ForeverAgent in node 0.10- only
if (v.major === 0 && v.minor <= 10) {
self.agentClass = protocol === 'http:' ? ForeverAgent : ForeverAgent.SSL
} else {
self.agentClass = self.httpModule.Agent
self.agentOptions = self.agentOptions || {}
self.agentOptions.keepAlive = true
}
} else {
self.agentClass = self.httpModule.Agent
}
}
if (self.pool === false) {
self.agent = false
} else {
self.agent = self.agent || self.getNewAgent()
}
self.on('pipe', function (src) {
if (self.ntick && self._started) {
self.emit('error', new Error('You cannot pipe to this stream after the outbound request has started.'))
}
self.src = src
if (isReadStream(src)) {
if (!self.hasHeader('content-type')) {
self.setHeader('content-type', mime.lookup(src.path))
}
} else {
if (src.headers) {
for (var i in src.headers) {
if (!self.hasHeader(i)) {
self.setHeader(i, src.headers[i])
}
}
}
if (self._json && !self.hasHeader('content-type')) {
self.setHeader('content-type', 'application/json')
}
if (src.method && !self.explicitMethod) {
self.method = src.method
}
}
// self.on('pipe', function () {
// console.error('You have already piped to this stream. Pipeing twice is likely to break the request.')
// })
})
defer(function () {
if (self._aborted) {
return
}
var end = function () {
if (self._form) {
if (!self._auth.hasAuth) {
self._form.pipe(self)
}
else if (self._auth.hasAuth && self._auth.sentAuth) {
self._form.pipe(self)
}
}
if (self._multipart && self._multipart.chunked) {
self._multipart.body.pipe(self)
}
if (self.body) {
setContentLength()
if (Array.isArray(self.body)) {
self.body.forEach(function (part) {
self.write(part)
})
} else {
self.write(self.body)
}
self.end()
} else if (self.requestBodyStream) {
console.warn('options.requestBodyStream is deprecated, please pass the request object to stream.pipe.')
self.requestBodyStream.pipe(self)
} else if (!self.src) {
if (self._auth.hasAuth && !self._auth.sentAuth) {
self.end()
return
}
if (self.method !== 'GET' && typeof self.method !== 'undefined') {
self.setHeader('content-length', 0)
}
self.end()
}
}
if (self._form && !self.hasHeader('content-length')) {
// Before ending the request, we had to compute the length of the whole form, asyncly
self.setHeader(self._form.getHeaders(), true)
self._form.getLength(function (err, length) {
if (!err) {
self.setHeader('content-length', length)
}
end()
})
} else {
end()
}
self.ntick = true
})
}
// Must call this when following a redirect from https to http or vice versa
// Attempts to keep everything as identical as possible, but update the
// httpModule, Tunneling agent, and/or Forever Agent in use.
Request.prototype._updateProtocol = function () {
var self = this
var protocol = self.uri.protocol
if (protocol === 'https:' || self.tunnel) {
// previously was doing http, now doing https
// if it's https, then we might need to tunnel now.
if (self.proxy) {
if (self._tunnel.setup()) {
return
}
}
self.httpModule = https
switch (self.agentClass) {
case ForeverAgent:
self.agentClass = ForeverAgent.SSL
break
case http.Agent:
self.agentClass = https.Agent
break
default:
// nothing we can do. Just hope for the best.
return
}
// if there's an agent, we need to get a new one.
if (self.agent) {
self.agent = self.getNewAgent()
}
} else {
// previously was doing https, now doing http
self.httpModule = http
switch (self.agentClass) {
case ForeverAgent.SSL:
self.agentClass = ForeverAgent
break
case https.Agent:
self.agentClass = http.Agent
break
default:
// nothing we can do. just hope for the best
return
}
// if there's an agent, then get a new one.
if (self.agent) {
self.agent = null
self.agent = self.getNewAgent()
}
}
}
Request.prototype.getNewAgent = function () {
var self = this
var Agent = self.agentClass
var options = {}
if (self.agentOptions) {
for (var i in self.agentOptions) {
options[i] = self.agentOptions[i]
}
}
if (self.ca) {
options.ca = self.ca
}
if (self.ciphers) {
options.ciphers = self.ciphers
}
if (self.secureProtocol) {
options.secureProtocol = self.secureProtocol
}
if (self.secureOptions) {
options.secureOptions = self.secureOptions
}
if (typeof self.rejectUnauthorized !== 'undefined') {
options.rejectUnauthorized = self.rejectUnauthorized
}
if (self.cert && self.key) {
options.key = self.key
options.cert = self.cert
}
if (self.pfx) {
options.pfx = self.pfx
}
if (self.passphrase) {
options.passphrase = self.passphrase
}
var poolKey = ''
// different types of agents are in different pools
if (Agent !== self.httpModule.Agent) {
poolKey += Agent.name
}
// ca option is only relevant if proxy or destination are https
var proxy = self.proxy
if (typeof proxy === 'string') {
proxy = url.parse(proxy)
}
var isHttps = (proxy && proxy.protocol === 'https:') || this.uri.protocol === 'https:'
if (isHttps) {
if (options.ca) {
if (poolKey) {
poolKey += ':'
}
poolKey += options.ca
}
if (typeof options.rejectUnauthorized !== 'undefined') {
if (poolKey) {
poolKey += ':'
}
poolKey += options.rejectUnauthorized
}
if (options.cert) {
if (poolKey) {
poolKey += ':'
}
poolKey += options.cert.toString('ascii') + options.key.toString('ascii')
}
if (options.pfx) {
if (poolKey) {
poolKey += ':'
}
poolKey += options.pfx.toString('ascii')
}
if (options.ciphers) {
if (poolKey) {
poolKey += ':'
}
poolKey += options.ciphers
}
if (options.secureProtocol) {
if (poolKey) {
poolKey += ':'
}
poolKey += options.secureProtocol
}
if (options.secureOptions) {
if (poolKey) {
poolKey += ':'
}
poolKey += options.secureOptions
}
}
if (self.pool === globalPool && !poolKey && Object.keys(options).length === 0 && self.httpModule.globalAgent) {
// not doing anything special. Use the globalAgent
return self.httpModule.globalAgent
}
// we're using a stored agent. Make sure it's protocol-specific
poolKey = self.uri.protocol + poolKey
// generate a new agent for this setting if none yet exists
if (!self.pool[poolKey]) {
self.pool[poolKey] = new Agent(options)
// properly set maxSockets on new agents
if (self.pool.maxSockets) {
self.pool[poolKey].maxSockets = self.pool.maxSockets
}
}
return self.pool[poolKey]
}
Request.prototype.start = function () {
// start() is called once we are ready to send the outgoing HTTP request.
// this is usually called on the first write(), end() or on nextTick()
var self = this
if (self._aborted) {
return
}
self._started = true
self.method = self.method || 'GET'
self.href = self.uri.href
if (self.src && self.src.stat && self.src.stat.size && !self.hasHeader('content-length')) {
self.setHeader('content-length', self.src.stat.size)
}
if (self._aws) {
self.aws(self._aws, true)
}
// We have a method named auth, which is completely different from the http.request
// auth option. If we don't remove it, we're gonna have a bad time.
var reqOptions = copy(self)
delete reqOptions.auth
debug('make request', self.uri.href)
self.req = self.httpModule.request(reqOptions)
if (self.timing) {
self.startTime = new Date().getTime()
}
if (self.timeout && !self.timeoutTimer) {
var timeout = self.timeout < 0 ? 0 : self.timeout
// Set a timeout in memory - this block will throw if the server takes more
// than `timeout` to write the HTTP status and headers (corresponding to
// the on('response') event on the client). NB: this measures wall-clock
// time, not the time between bytes sent by the server.
self.timeoutTimer = setTimeout(function () {
var connectTimeout = self.req.socket && self.req.socket.readable === false
self.abort()
var e = new Error('ETIMEDOUT')
e.code = 'ETIMEDOUT'
e.connect = connectTimeout
self.emit('error', e)
}, timeout)
if (self.req.setTimeout) { // only works on node 0.6+
// Set an additional timeout on the socket, via the `setsockopt` syscall.
// This timeout sets the amount of time to wait *between* bytes sent
// from the server, and may or may not correspond to the wall-clock time
// elapsed from the start of the request.
//
// In particular, it's useful for erroring if the server fails to send
// data halfway through streaming a response.
self.req.setTimeout(timeout, function () {
if (self.req) {
self.req.abort()
var e = new Error('ESOCKETTIMEDOUT')
e.code = 'ESOCKETTIMEDOUT'
e.connect = false
self.emit('error', e)
}
})
}
}
self.req.on('response', self.onRequestResponse.bind(self))
self.req.on('error', self.onRequestError.bind(self))
self.req.on('drain', function() {
self.emit('drain')
})
self.req.on('socket', function(socket) {
self.emit('socket', socket)
})
self.on('end', function() {
if ( self.req.connection ) {
self.req.connection.removeListener('error', connectionErrorHandler)
}
})
self.emit('request', self.req)
}
Request.prototype.onRequestError = function (error) {
var self = this
if (self._aborted) {
return
}
if (self.req && self.req._reusedSocket && error.code === 'ECONNRESET'
&& self.agent.addRequestNoreuse) {
self.agent = { addRequest: self.agent.addRequestNoreuse.bind(self.agent) }
self.start()
self.req.end()
return
}
if (self.timeout && self.timeoutTimer) {
clearTimeout(self.timeoutTimer)
self.timeoutTimer = null
}
self.emit('error', error)
}
Request.prototype.onRequestResponse = function (response) {
var self = this
debug('onRequestResponse', self.uri.href, response.statusCode, response.headers)
response.on('end', function() {
if (self.timing) {
self.elapsedTime += (new Date().getTime() - self.startTime)
debug('elapsed time', self.elapsedTime)
response.elapsedTime = self.elapsedTime
}
debug('response end', self.uri.href, response.statusCode, response.headers)
})
// The check on response.connection is a workaround for browserify.
if (response.connection && response.connection.listeners('error').indexOf(connectionErrorHandler) === -1) {
response.connection.setMaxListeners(0)
response.connection.once('error', connectionErrorHandler)
}
if (self._aborted) {
debug('aborted', self.uri.href)
response.resume()
return
}
self.response = response
response.request = self
response.toJSON = responseToJSON
// XXX This is different on 0.10, because SSL is strict by default
if (self.httpModule === https &&
self.strictSSL && (!response.hasOwnProperty('socket') ||
!response.socket.authorized)) {
debug('strict ssl error', self.uri.href)
var sslErr = response.hasOwnProperty('socket') ? response.socket.authorizationError : self.uri.href + ' does not support SSL'
self.emit('error', new Error('SSL Error: ' + sslErr))
return
}
// Save the original host before any redirect (if it changes, we need to
// remove any authorization headers). Also remember the case of the header
// name because lots of broken servers expect Host instead of host and we
// want the caller to be able to specify this.
self.originalHost = self.getHeader('host')
if (!self.originalHostHeaderName) {
self.originalHostHeaderName = self.hasHeader('host')
}
if (self.setHost) {
self.removeHeader('host')
}
if (self.timeout && self.timeoutTimer) {
clearTimeout(self.timeoutTimer)
self.timeoutTimer = null
}
var targetCookieJar = (self._jar && self._jar.setCookie) ? self._jar : globalCookieJar
var addCookie = function (cookie) {
//set the cookie if it's domain in the href's domain.
try {
targetCookieJar.setCookie(cookie, self.uri.href, {ignoreError: true})
} catch (e) {
self.emit('error', e)
}
}
response.caseless = caseless(response.headers)
if (response.caseless.has('set-cookie') && (!self._disableCookies)) {
var headerName = response.caseless.has('set-cookie')
if (Array.isArray(response.headers[headerName])) {
response.headers[headerName].forEach(addCookie)
} else {
addCookie(response.headers[headerName])
}
}
if (self._redirect.onResponse(response)) {
return // Ignore the rest of the response
} else {
// Be a good stream and emit end when the response is finished.
// Hack to emit end on close because of a core bug that never fires end
response.on('close', function () {
if (!self._ended) {
self.response.emit('end')
}
})
response.on('end', function () {
self._ended = true
})
var responseContent
if (self.gzip) {
var contentEncoding = response.headers['content-encoding'] || 'identity'
contentEncoding = contentEncoding.trim().toLowerCase()
if (contentEncoding === 'gzip') {
responseContent = zlib.createGunzip()
response.pipe(responseContent)
} else {
// Since previous versions didn't check for Content-Encoding header,
// ignore any invalid values to preserve backwards-compatibility
if (contentEncoding !== 'identity') {
debug('ignoring unrecognized Content-Encoding ' + contentEncoding)
}
responseContent = response
}
} else {
responseContent = response
}
if (self.encoding) {
if (self.dests.length !== 0) {
console.error('Ignoring encoding parameter as this stream is being piped to another stream which makes the encoding option invalid.')
} else if (responseContent.setEncoding) {
responseContent.setEncoding(self.encoding)
} else {
// Should only occur on node pre-v0.9.4 (joyent/node@9b5abe5) with
// zlib streams.
// If/When support for 0.9.4 is dropped, this should be unnecessary.
responseContent = responseContent.pipe(stringstream(self.encoding))
}
}
if (self._paused) {
responseContent.pause()
}
self.responseContent = responseContent
self.emit('response', response)
self.dests.forEach(function (dest) {
self.pipeDest(dest)
})
responseContent.on('data', function (chunk) {
self._destdata = true
self.emit('data', chunk)
})
responseContent.on('end', function (chunk) {
self.emit('end', chunk)
})
responseContent.on('error', function (error) {
self.emit('error', error)
})
responseContent.on('close', function () {self.emit('close')})
if (self.callback) {
self.readResponseBody(response)
}
//if no callback
else {
self.on('end', function () {
if (self._aborted) {
debug('aborted', self.uri.href)
return
}
self.emit('complete', response)
})
}
}
debug('finish init function', self.uri.href)
}
Request.prototype.readResponseBody = function (response) {
var self = this
debug('reading response\'s body')
var buffer = bl()
, strings = []
self.on('data', function (chunk) {
if (Buffer.isBuffer(chunk)) {
buffer.append(chunk)
} else {
strings.push(chunk)
}
})
self.on('end', function () {
debug('end event', self.uri.href)
if (self._aborted) {
debug('aborted', self.uri.href)
return
}
if (buffer.length) {
debug('has body', self.uri.href, buffer.length)
if (self.encoding === null) {
// response.body = buffer
// can't move to this until https://github.com/rvagg/bl/issues/13
response.body = buffer.slice()
} else {
response.body = buffer.toString(self.encoding)
}
} else if (strings.length) {
// The UTF8 BOM [0xEF,0xBB,0xBF] is converted to [0xFE,0xFF] in the JS UTC16/UCS2 representation.
// Strip this value out when the encoding is set to 'utf8', as upstream consumers won't expect it and it breaks JSON.parse().
if (self.encoding === 'utf8' && strings[0].length > 0 && strings[0][0] === '\uFEFF') {
strings[0] = strings[0].substring(1)
}
response.body = strings.join('')
}
if (self._json) {
try {
response.body = JSON.parse(response.body, self._jsonReviver)
} catch (e) {
debug('invalid JSON received', self.uri.href)
}
}
debug('emitting complete', self.uri.href)
if (typeof response.body === 'undefined' && !self._json) {
response.body = self.encoding === null ? new Buffer(0) : ''
}
self.emit('complete', response, response.body)
})
}
Request.prototype.abort = function () {
var self = this
self._aborted = true
if (self.req) {
self.req.abort()
}
else if (self.response) {
self.response.abort()
}
self.emit('abort')
}
Request.prototype.pipeDest = function (dest) {
var self = this
var response = self.response
// Called after the response is received
if (dest.headers && !dest.headersSent) {
if (response.caseless.has('content-type')) {
var ctname = response.caseless.has('content-type')
if (dest.setHeader) {
dest.setHeader(ctname, response.headers[ctname])
}
else {
dest.headers[ctname] = response.headers[ctname]
}
}
if (response.caseless.has('content-length')) {
var clname = response.caseless.has('content-length')
if (dest.setHeader) {
dest.setHeader(clname, response.headers[clname])
} else {
dest.headers[clname] = response.headers[clname]
}
}
}
if (dest.setHeader && !dest.headersSent) {
for (var i in response.headers) {
// If the response content is being decoded, the Content-Encoding header
// of the response doesn't represent the piped content, so don't pass it.
if (!self.gzip || i !== 'content-encoding') {
dest.setHeader(i, response.headers[i])
}
}
dest.statusCode = response.statusCode
}
if (self.pipefilter) {
self.pipefilter(response, dest)
}
}
Request.prototype.qs = function (q, clobber) {
var self = this
var base
if (!clobber && self.uri.query) {
base = self._qs.parse(self.uri.query)
} else {
base = {}
}
for (var i in q) {
base[i] = q[i]
}
var qs = self._qs.stringify(base)
if (qs === '') {
return self
}
self.uri = url.parse(self.uri.href.split('?')[0] + '?' + qs)
self.url = self.uri
self.path = self.uri.path
if (self.uri.host === 'unix') {
self.enableUnixSocket()
}
return self
}
Request.prototype.form = function (form) {
var self = this
if (form) {
if (!/^application\/x-www-form-urlencoded\b/.test(self.getHeader('content-type'))) {
self.setHeader('content-type', 'application/x-www-form-urlencoded')
}
self.body = (typeof form === 'string')
? self._qs.rfc3986(form.toString('utf8'))
: self._qs.stringify(form).toString('utf8')
return self
}
// create form-data object
self._form = new FormData()
self._form.on('error', function(err) {
err.message = 'form-data: ' + err.message
self.emit('error', err)
self.abort()
})
return self._form
}
Request.prototype.multipart = function (multipart) {
var self = this
self._multipart.onRequest(multipart)
if (!self._multipart.chunked) {
self.body = self._multipart.body
}
return self
}
Request.prototype.json = function (val) {
var self = this
if (!self.hasHeader('accept')) {
self.setHeader('accept', 'application/json')
}
self._json = true
if (typeof val === 'boolean') {
if (self.body !== undefined) {
if (!/^application\/x-www-form-urlencoded\b/.test(self.getHeader('content-type'))) {
self.body = safeStringify(self.body)
} else {
self.body = self._qs.rfc3986(self.body)
}
if (!self.hasHeader('content-type')) {
self.setHeader('content-type', 'application/json')
}
}
} else {
self.body = safeStringify(val)
if (!self.hasHeader('content-type')) {
self.setHeader('content-type', 'application/json')
}
}
if (typeof self.jsonReviver === 'function') {
self._jsonReviver = self.jsonReviver
}
return self
}
Request.prototype.getHeader = function (name, headers) {
var self = this
var result, re, match
if (!headers) {
headers = self.headers
}
Object.keys(headers).forEach(function (key) {
if (key.length !== name.length) {
return
}
re = new RegExp(name, 'i')
match = key.match(re)
if (match) {
result = headers[key]
}
})
return result
}
Request.prototype.enableUnixSocket = function () {
// Get the socket & request paths from the URL
var unixParts = this.uri.path.split(':')
, host = unixParts[0]
, path = unixParts[1]
// Apply unix properties to request
this.socketPath = host
this.uri.pathname = path
this.uri.path = path
this.uri.host = host
this.uri.hostname = host
this.uri.isUnix = true
}
Request.prototype.auth = function (user, pass, sendImmediately, bearer) {
var self = this
self._auth.onRequest(user, pass, sendImmediately, bearer)
return self
}
Request.prototype.aws = function (opts, now) {
var self = this
if (!now) {
self._aws = opts
return self
}
var date = new Date()
self.setHeader('date', date.toUTCString())
var auth =
{ key: opts.key
, secret: opts.secret
, verb: self.method.toUpperCase()
, date: date
, contentType: self.getHeader('content-type') || ''
, md5: self.getHeader('content-md5') || ''
, amazonHeaders: aws.canonicalizeHeaders(self.headers)
}
var path = self.uri.path
if (opts.bucket && path) {
auth.resource = '/' + opts.bucket + path
} else if (opts.bucket && !path) {
auth.resource = '/' + opts.bucket
} else if (!opts.bucket && path) {
auth.resource = path
} else if (!opts.bucket && !path) {
auth.resource = '/'
}
auth.resource = aws.canonicalizeResource(auth.resource)
self.setHeader('authorization', aws.authorization(auth))
return self
}
Request.prototype.httpSignature = function (opts) {
var self = this
httpSignature.signRequest({
getHeader: function(header) {
return self.getHeader(header, self.headers)
},
setHeader: function(header, value) {
self.setHeader(header, value)
},
method: self.method,
path: self.path
}, opts)
debug('httpSignature authorization', self.getHeader('authorization'))
return self
}
Request.prototype.hawk = function (opts) {
var self = this
self.setHeader('Authorization', hawk.client.header(self.uri, self.method, opts).field)
}
Request.prototype.oauth = function (_oauth) {
var self = this
self._oauth.onRequest(_oauth)
return self
}
Request.prototype.jar = function (jar) {
var self = this
var cookies
if (self._redirect.redirectsFollowed === 0) {
self.originalCookieHeader = self.getHeader('cookie')
}
if (!jar) {
// disable cookies
cookies = false
self._disableCookies = true
} else {
var targetCookieJar = (jar && jar.getCookieString) ? jar : globalCookieJar
var urihref = self.uri.href
//fetch cookie in the Specified host
if (targetCookieJar) {
cookies = targetCookieJar.getCookieString(urihref)
}
}
//if need cookie and cookie is not empty
if (cookies && cookies.length) {
if (self.originalCookieHeader) {
// Don't overwrite existing Cookie header
self.setHeader('cookie', self.originalCookieHeader + '; ' + cookies)
} else {
self.setHeader('cookie', cookies)
}
}
self._jar = jar
return self
}
// Stream API
Request.prototype.pipe = function (dest, opts) {
var self = this
if (self.response) {
if (self._destdata) {
self.emit('error', new Error('You cannot pipe after data has been emitted from the response.'))
} else if (self._ended) {
self.emit('error', new Error('You cannot pipe after the response has been ended.'))
} else {
stream.Stream.prototype.pipe.call(self, dest, opts)
self.pipeDest(dest)
return dest
}
} else {
self.dests.push(dest)
stream.Stream.prototype.pipe.call(self, dest, opts)
return dest
}
}
Request.prototype.write = function () {
var self = this
if (!self._started) {
self.start()
}
return self.req.write.apply(self.req, arguments)
}
Request.prototype.end = function (chunk) {
var self = this
if (chunk) {
self.write(chunk)
}
if (!self._started) {
self.start()
}
self.req.end()
}
Request.prototype.pause = function () {
var self = this
if (!self.responseContent) {
self._paused = true
} else {
self.responseContent.pause.apply(self.responseContent, arguments)
}
}
Request.prototype.resume = function () {
var self = this
if (!self.responseContent) {
self._paused = false
} else {
self.responseContent.resume.apply(self.responseContent, arguments)
}
}
Request.prototype.destroy = function () {
var self = this
if (!self._ended) {
self.end()
} else if (self.response) {
self.response.destroy()
}
}
Request.defaultProxyHeaderWhiteList =
Tunnel.defaultProxyHeaderWhiteList.slice()
Request.defaultProxyHeaderExclusiveList =
Tunnel.defaultProxyHeaderExclusiveList.slice()
// Exports
Request.prototype.toJSON = requestToJSON
module.exports = Request
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