107 lines
4.5 KiB
PHP
107 lines
4.5 KiB
PHP
<?php
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/**
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* Proxy module.
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*
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* This file is part of MadelineProto.
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* MadelineProto is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
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* MadelineProto is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Affero General Public License for more details.
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* You should have received a copy of the GNU General Public License along with MadelineProto.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* @author Daniil Gentili <daniil@daniil.it>
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* @copyright 2016-2019 Daniil Gentili <daniil@daniil.it>
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* @license https://opensource.org/licenses/AGPL-3.0 AGPLv3
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*
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* @link https://docs.madelineproto.xyz MadelineProto documentation
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*/
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namespace danog\MadelineProto\Server;
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/*
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* Socket handler for server
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*/
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class Proxy extends \danog\MadelineProto\Connection
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{
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public function __magic_construct($socket, $extra, $ip, $port, $protocol, $timeout, $ipv6)
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{
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\danog\MadelineProto\Logger::log('Got connection '.\getmypid().'!');
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\danog\MadelineProto\Magic::$pid = \getmypid();
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\danog\MadelineProto\Lang::$current_lang = [];
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$this->sock = $socket;
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$this->sock->setBlocking(true);
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$this->must_open = false;
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$this->sock->setOption(\SOL_SOCKET, \SO_RCVTIMEO, $extra['timeout']);
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$this->sock->setOption(\SOL_SOCKET, \SO_SNDTIMEO, $extra['timeout']);
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$this->logger = new \danog\MadelineProto\Logger(3);
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$this->extra = $extra;
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if ($this->extra['madeline'] instanceof \danog\MadelineProto\API) {
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$this->extra['madeline'] = $this->extra['madeline']->API->datacenter->sockets;
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}
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}
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public function __destruct()
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{
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\danog\MadelineProto\Logger::log('Closing fork '.\getmypid().'!');
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unset($this->sock);
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}
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public function loop()
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{
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$this->protocol = 'obfuscated2';
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$random = $this->sock->read(64);
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$reversed = \strrev(\substr($random, 8, 48));
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$key = \substr($random, 8, 32);
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$keyRev = \substr($reversed, 0, 32);
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if (isset($this->extra['secret'])) {
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$key = \hash('sha256', $key.$this->extra['secret'], true);
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$keyRev = \hash('sha256', $keyRev.$this->extra['secret'], true);
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}
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$this->obfuscated = ['encryption' => new \phpseclib\Crypt\AES('ctr'), 'decryption' => new \phpseclib\Crypt\AES('ctr')];
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$this->obfuscated['encryption']->enableContinuousBuffer();
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$this->obfuscated['decryption']->enableContinuousBuffer();
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$this->obfuscated['decryption']->setKey($key);
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$this->obfuscated['decryption']->setIV(\substr($random, 40, 16));
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$this->obfuscated['encryption']->setKey($keyRev);
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$this->obfuscated['encryption']->setIV(\substr($reversed, 32, 16));
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$random = \substr_replace($random, \substr(@$this->obfuscated['decryption']->encrypt($random), 56, 8), 56, 8);
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if (\substr($random, 56, 4) !== \str_repeat(\chr(0xef), 4)) {
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throw new \danog\MadelineProto\Exception('Wrong protocol version');
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}
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$dc = \abs(\unpack('s', \substr($random, 60, 2))[1]);
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$socket = $this->extra['madeline'][$dc];
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$socket->__construct($socket->proxy, $socket->extra, $socket->ip, $socket->port, $socket->protocol, $timeout = $this->extra['timeout'], $socket->ipv6);
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unset($this->extra);
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$write = [];
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$except = [];
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while (true) {
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\pcntl_signal_dispatch();
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try {
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$read = [$this->getSocket(), $socket->getSocket()];
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\Socket::select($read, $write, $except, $timeout);
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if (isset($read[0])) {
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//\danog\MadelineProto\Logger::log("Will write to DC $dc on ".\danog\MadelineProto\Magic::$pid);
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$socket->sendMessage($this->readMessage());
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}
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if (isset($read[1])) {
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//\danog\MadelineProto\Logger::log("Will read from DC $dc on ".\danog\MadelineProto\Magic::$pid);
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$this->sendMessage($socket->readMessage());
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}
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if (empty($read)) {
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throw new \danog\MadelineProto\NothingInTheSocketException('Inactivity');
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}
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} catch (\danog\MadelineProto\NothingInTheSocketException $e) {
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exit();
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}
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}
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}
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}
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