140 lines
3.7 KiB
PHP
140 lines
3.7 KiB
PHP
<?php
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/**
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* Websocket stream wrapper.
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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\Stream\Transport;
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use Amp\Promise;
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use Amp\Socket\EncryptableSocket;
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use Amp\Websocket\Client\Handshake;
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use danog\MadelineProto\Stream\Async\RawStream;
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use danog\MadelineProto\Stream\ConnectionContext;
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use danog\MadelineProto\Stream\ProxyStreamInterface;
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use danog\MadelineProto\Stream\RawStreamInterface;
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use function Amp\Websocket\Client\connector;
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/**
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* Websocket stream wrapper.
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*
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* @author Daniil Gentili <daniil@daniil.it>
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*/
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class WsStream implements RawStreamInterface, ProxyStreamInterface
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{
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use RawStream;
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/**
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* Websocket stream.
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*
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* @var Connection
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*/
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private $stream;
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/**
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* Websocket message.
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*
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* @var Message
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*/
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private $message;
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/**
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* Websocket Connector.
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*
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* @var Connector
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*/
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private $connector;
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/**
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* Connect to stream.
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*
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* @param ConnectionContext $ctx The connection context
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*
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* @return \Generator
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*/
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public function connectGenerator(ConnectionContext $ctx, string $header = ''): \Generator
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{
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$this->dc = $ctx->getIntDc();
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$handshake = new Handshake(\str_replace('tcp://', $ctx->isSecure() ? 'ws://' : 'wss://', $ctx->getStringUri()));
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$this->stream = yield ($this->connector ?? connector())->connect($handshake, $ctx->getCancellationToken());
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yield $this->write($header);
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}
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/**
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* Async close.
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*/
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public function disconnect()
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{
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try {
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$this->stream->close();
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} catch (\Throwable $e) {
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}
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}
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public function readGenerator(): \Generator
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{
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try {
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if (!$this->message || ($data = yield $this->message->buffer()) === null) {
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$this->message = yield $this->stream->receive();
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if (!$this->message) {
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return null;
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}
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$data = yield $this->message->buffer();
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$this->message = null;
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}
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} catch (\Exception $e) {
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if ($e->getReason() !== 'Client closed the underlying TCP connection') {
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throw $e;
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}
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return null;
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}
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return $data;
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}
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/**
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* Async write.
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*
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* @param string $data Data to write
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*
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* @return Promise
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*/
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public function write(string $data): \Amp\Promise
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{
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return $this->stream->sendBinary($data);
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}
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/**
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* {@inheritdoc}
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*
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* @return \Amp\Socket\Socket
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*/
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public function getSocket(): EncryptableSocket
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{
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return $this->stream->getSocket();
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}
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public function setExtra($extra)
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{
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$this->connector = $extra;
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}
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public static function getName(): string
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{
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return __CLASS__;
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}
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}
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