// Copyright Joyent, Inc. and other Node contributors.

//

// Permission is hereby granted, free of charge, to any person obtaining a

// copy of this software and associated documentation files (the

// "Software"), to deal in the Software without restriction, including

// without limitation the rights to use, copy, modify, merge, publish,

// distribute, sublicense, and/or sell copies of the Software, and to permit

// persons to whom the Software is furnished to do so, subject to the

// following conditions:

//

// The above copyright notice and this permission notice shall be included

// in all copies or substantial portions of the Software.

//

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF

// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN

// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,

// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE

// USE OR OTHER DEALINGS IN THE SOFTWARE.

var util = require('util');

var url = require('url');

var EventEmitter = require('events').EventEmitter;

var incoming = require('_http_incoming');

var IncomingMessage = exports.IncomingMessage = incoming.IncomingMessage;

var common = require('_http_common');

var parsers = exports.parsers = common.parsers;

var outgoing = require('_http_outgoing');

var OutgoingMessage = exports.OutgoingMessage = outgoing.OutgoingMessage;

var server = require('_http_server');

exports.ServerResponse = server.ServerResponse;

exports.STATUS_CODES = server.STATUS_CODES;

var agent = require('_http_agent');

var Agent = exports.Agent = agent.Agent;

var globalAgent = exports.globalAgent = agent.globalAgent;

var client = require('_http_client');

var ClientRequest = exports.ClientRequest = client.ClientRequest;

exports.request = function(options, cb) {

if (typeof options === 'string') {

options = url.parse(options);

} else if (options && options.path && / /.test(options.path)) {

// The actual regex is more like /[^A-Za-z0-9\-._~!$&'()*+,;=/:@]/

// with an additional rule for ignoring percentage-escaped characters

// but that's a) hard to capture in a regular expression that performs

// well, and b) possibly too restrictive for real-world usage. That's

// why it only scans for spaces because those are guaranteed to create

// an invalid request.

throw new TypeError('Request path contains unescaped characters.');

}

if (options.protocol && options.protocol !== 'http:') {

throw new Error('Protocol:' + options.protocol + ' not supported.');

}

return new ClientRequest(options, cb);

};

exports.get = function(options, cb) {

var req = exports.request(options, cb);

req.end();

return req;

};

var httpSocketSetup = common.httpSocketSetup;

exports._connectionListener = server._connectionListener;

var Server = exports.Server = server.Server;

exports.createServer = function(requestListener) {

return new Server(requestListener);

};

// Legacy Interface

function Client(port, host) {

if (!(this instanceof Client)) return new Client(port, host);

EventEmitter.call(this);

host = host || 'localhost';

port = port || 80;

this.host = host;

this.port = port;

this.agent = new Agent({ host: host, port: port, maxSockets: 1 });

}

util.inherits(Client, EventEmitter);

Client.prototype.request = function(method, path, headers) {

var self = this;

var options = {};

options.host = self.host;

options.port = self.port;

if (method[0] === '/') {

headers = path;

path = method;

method = 'GET';

}

options.method = method;

options.path = path;

options.headers = headers;

options.agent = self.agent;

var c = new ClientRequest(options);

c.on('error', function(e) {

self.emit('error', e);

});

// The old Client interface emitted 'end' on socket end.

// This doesn't map to how we want things to operate in the future

// but it will get removed when we remove this legacy interface.

c.on('socket', function(s) {

s.on('end', function() {

if (self._decoder) {

var ret = self._decoder.end();

if (ret)

self.emit('data', ret);

}

self.emit('end');

});

});

return c;

};

exports.Client = util.deprecate(Client,

'http.Client will be removed soon. Do not use it.');

exports.createClient = util.deprecate(function(port, host) {

return new Client(port, host);

}, 'http.createClient is deprecated. Use `http.request` instead.');