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195 lines (190 loc) · 6.38 KB
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<?php
declare(strict_types=1);
/**
* HTTP stream wrapper.
*
* This file is part of MadelineProto.
* 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.
* 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.
* See the GNU Affero General Public License for more details.
* You should have received a copy of the GNU General Public License along with MadelineProto.
* If not, see <http://www.gnu.org/licenses/>.
*
* @author Daniil Gentili <daniil@daniil.it>
* @copyright 2016-2025 Daniil Gentili <daniil@daniil.it>
* @license https://opensource.org/licenses/AGPL-3.0 AGPLv3
* @link https://docs.madelineproto.xyz MadelineProto documentation
*/
namespace danog\MadelineProto\Stream\MTProtoTransport;
use Amp\Cancellation;
use Amp\Socket\Socket;
use danog\MadelineProto\Exception;
use danog\MadelineProto\Logger;
use danog\MadelineProto\Stream\BufferedProxyStreamInterface;
use danog\MadelineProto\Stream\BufferedStreamInterface;
use danog\MadelineProto\Stream\ConnectionContext;
use danog\MadelineProto\Stream\MTProtoBufferInterface;
use danog\MadelineProto\Stream\RawStreamInterface;
use danog\MadelineProto\Stream\ReadBufferInterface;
use danog\MadelineProto\Tools;
use Psr\Http\Message\UriInterface;
/**
* HTTP stream wrapper.
*
* @author Daniil Gentili <daniil@daniil.it>
*
* @implements BufferedProxyStreamInterface<array{user?: string, password?: string}>
*/
class HttpStream implements MTProtoBufferInterface, BufferedProxyStreamInterface, ReadBufferInterface
{
/**
* Stream.
*
*/
protected BufferedStreamInterface&RawStreamInterface $stream;
private $code;
private $ctx;
private $header = '';
/**
* URI of the HTTP API.
*/
private UriInterface $uri;
/**
* Connect to stream.
*
* @param ConnectionContext $ctx The connection context
*/
#[\Override]
public function connect(ConnectionContext $ctx, string $header = ''): void
{
$this->ctx = $ctx->clone();
$this->stream = ($ctx->getStream($header));
$this->uri = $ctx->getUri();
}
/**
* Set proxy data.
*
* @param array $extra Proxy parameters
*/
#[\Override]
public function setExtra($extra): void
{
if (isset($extra['user']) && isset($extra['password'])) {
$this->header = base64_encode($extra['user'].':'.$extra['password'])."\r\n";
}
}
/**
* Async close.
*/
#[\Override]
public function disconnect(): void
{
$this->stream->disconnect();
}
/**
* Get write buffer asynchronously.
*
* @param int $length Length of data that is going to be written to the write buffer
*/
#[\Override]
public function getWriteBuffer(int $length, string $append = ''): \danog\MadelineProto\Stream\WriteBufferInterface
{
$headers = 'POST '.$this->uri->getPath()." HTTP/1.1\r\nHost: ".$this->uri->getHost().':'.$this->uri->getPort()."\r\n"."Content-Type: application/x-www-form-urlencoded\r\nConnection: keep-alive\r\nKeep-Alive: timeout=100000, max=10000000\r\nContent-Length: ".$length.$this->header."\r\n\r\n";
$buffer = $this->stream->getWriteBuffer(\strlen($headers) + $length, $append);
$buffer->bufferWrite($headers);
return $buffer;
}
/**
* Get read buffer asynchronously.
*
* @param int $length Length of payload, as detected by this layer
*/
#[\Override]
public function getReadBuffer(?int &$length): ReadBufferInterface
{
$buffer = $this->stream->getReadBuffer($l);
$headers = '';
$was_crlf = false;
while (true) {
$piece = $buffer->bufferRead(2);
$headers .= $piece;
if ($piece === "\n\r") {
// Assume end of headers with \r\n\r\n
$headers .= $buffer->bufferRead(1);
break;
}
if ($was_crlf && $piece === "\r\n") {
break;
}
$was_crlf = $piece === "\r\n";
}
$headers = explode("\r\n", $headers);
[$protocol, $code, $description] = explode(' ', $headers[0], 3);
[$protocol, $protocol_version] = explode('/', $protocol);
if ($protocol !== 'HTTP') {
throw new Exception('Wrong protocol');
}
$code = (int) $code;
unset($headers[0]);
if (array_pop($headers).array_pop($headers) !== '') {
throw new Exception('Wrong last header');
}
foreach ($headers as $key => $current_header) {
unset($headers[$key]);
$current_header = explode(':', $current_header, 2);
$headers[strtolower($current_header[0])] = trim($current_header[1]);
}
$close = $protocol_version === '1.0';
if (isset($headers['connection'])) {
$close = strtolower($headers['connection']) === 'close';
}
if ($code !== 200) {
$read = '';
if (isset($headers['content-length'])) {
$read = $buffer->bufferRead((int) $headers['content-length']);
}
if ($close) {
$this->disconnect();
$this->connect($this->ctx);
}
Logger::log($read);
$this->code = Tools::packSignedInt(-$code);
$length = 4;
return $this;
}
if ($close) {
$this->stream->disconnect();
$this->stream->connect($this->ctx);
}
if (isset($headers['content-length'])) {
$length = (int) $headers['content-length'];
}
return $buffer;
}
#[\Override]
public function bufferRead(int $length, ?Cancellation $cancellation = null): string
{
return $this->code;
}
/**
* {@inheritdoc}
*/
#[\Override]
public function getSocket(): Socket
{
return $this->stream->getSocket();
}
/**
* {@inheritDoc}
*/
#[\Override]
public function getStream(): RawStreamInterface
{
return $this->stream;
}
#[\Override]
public static function getName(): string
{
return self::class;
}
}