Differential D5873 Diff 13013 externals/JAXL/core/jaxl_sock5.php

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externals/JAXL/core/jaxl_sock5.php

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				<?php
				/**
				* Jaxl (Jabber XMPP Library)
				*
				* Copyright (c) 2009-2012, Abhinav Singh <me@abhinavsingh.com>.
				* All rights reserved.
				*
				* Redistribution and use in source and binary forms, with or without
				* modification, are permitted provided that the following conditions
				* are met:
				*
				* * Redistributions of source code must retain the above copyright
				* notice, this list of conditions and the following disclaimer.
				*
				* * Redistributions in binary form must reproduce the above copyright
				* notice, this list of conditions and the following disclaimer in
				* the documentation and/or other materials provided with the
				* distribution.
				*
				* * Neither the name of Abhinav Singh nor the names of his
				* contributors may be used to endorse or promote products derived
				* from this software without specific prior written permission.
				*
				* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
				* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
				* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
				* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
				* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
				* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
				* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
				* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
				* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRIC
				* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
				* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
				* POSSIBILITY OF SUCH DAMAGE.
				*
				*/

				require_once JAXL_CWD.'/core/jaxl_socket_client.php';

				/**
				* TODO: convert into a finite state machine
				*
				* @author abhinavsingh
				*
				*/
				class JAXLSock5 {

				private $client = null;

				protected $transport = null;
				protected $ip = null;
				protected $port = null;

				public function __construct($transport='tcp') {
				$this->transport = $transport;
				$this->client = new JAXLSocketClient();
				$this->client->set_callback(array(&$this, 'on_response'));
				}

				public function __destruct() {

				}

				public function connect($ip, $port=1080) {
				$this->ip = $ip;
				$this->port = $port;
				$sock_path = $this->_sock_path();

				if($this->client->connect($sock_path)) {
				_debug("established connection to $sock_path");
				return true;
				}
				else {
				_error("unable to connect $sock_path");
				return false;
				}
				}

				//
				// Three phases of SOCK5
				//

				// Negotiation pkt consists of 3 part:
				// 0x05 => Sock protocol version
				// 0x01 => Number of method identifier octet
				//
				// Following auth methods are defined:
				// 0x00 => No authentication required
				// 0x01 => GSSAPI
				// 0x02 => USERNAME/PASSWORD
				// 0x03 to 0x7F => IANA ASSIGNED
				// 0x80 to 0xFE => RESERVED FOR PRIVATE METHODS
				// 0xFF => NO ACCEPTABLE METHODS
				public function negotiate() {
				$pkt = pack("C3", 0x05, 0x01, 0x00);
				$this->client->send($pkt);

				// enter sub-negotiation state
				}

				public function relay_request() {
				// enter wait for reply state
				}

				public function send_data() {

				}

				//
				// Socket client callback
				//

				public function on_response($raw) {
				_debug($raw);
				}

				//
				// Private
				//

				protected function _sock_path() {
				return $this->transport.'://'.$this->ip.':'.$this->port;
				}

				}

				?>