|                                                                                     |  | var ClientRequest = require('./lib/request')var response = require('./lib/response')var extend = require('xtend')var statusCodes = require('builtin-status-codes')var url = require('url')
var http = exports
http.request = function (opts, cb) {	if (typeof opts === 'string')		opts = url.parse(opts)	else		opts = extend(opts)
	// Normally, the page is loaded from http or https, so not specifying a protocol
	// will result in a (valid) protocol-relative url. However, this won't work if
	// the protocol is something else, like 'file:'
	var defaultProtocol = global.location.protocol.search(/^https?:$/) === -1 ? 'http:' : ''
	var protocol = opts.protocol || defaultProtocol	var host = opts.hostname || opts.host	var port = opts.port	var path = opts.path || '/'
	// Necessary for IPv6 addresses
	if (host && host.indexOf(':') !== -1)		host = '[' + host + ']'
	// This may be a relative url. The browser should always be able to interpret it correctly.
	opts.url = (host ? (protocol + '//' + host) : '') + (port ? ':' + port : '') + path	opts.method = (opts.method || 'GET').toUpperCase()	opts.headers = opts.headers || {}
	// Also valid opts.auth, opts.mode
	var req = new ClientRequest(opts)	if (cb)		req.on('response', cb)	return req}
http.get = function get (opts, cb) {	var req = http.request(opts, cb)	req.end()	return req}
http.ClientRequest = ClientRequesthttp.IncomingMessage = response.IncomingMessage
http.Agent = function () {}http.Agent.defaultMaxSockets = 4
http.globalAgent = new http.Agent()
http.STATUS_CODES = statusCodes
http.METHODS = [	'CHECKOUT',	'CONNECT',	'COPY',	'DELETE',	'GET',	'HEAD',	'LOCK',	'M-SEARCH',	'MERGE',	'MKACTIVITY',	'MKCOL',	'MOVE',	'NOTIFY',	'OPTIONS',	'PATCH',	'POST',	'PROPFIND',	'PROPPATCH',	'PURGE',	'PUT',	'REPORT',	'SEARCH',	'SUBSCRIBE',	'TRACE',	'UNLOCK',	'UNSUBSCRIBE']
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