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<?php |
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namespace SamIT\Proxy; |
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use React\EventLoop\LoopInterface; |
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/** |
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* This class wraps an existing connection and add support for the proxy protocol. |
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* @package SamIT\Proxy |
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*/ |
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class ProxyConnection extends PortConnection implements PortConnectionInterface |
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{ |
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/** |
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* @var Header; |
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*/ |
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protected $header; |
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public function __construct($stream, LoopInterface $loop) |
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{ |
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parent::__construct($stream, $loop, true); |
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} |
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public function handleData($stream) |
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{ |
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// Socket is raw, not using fread as it's interceptable by filters |
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// See issues #192, #209, and #240 |
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$data = stream_socket_recvfrom($stream, $this->bufferSize); |
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if ('' !== $data && false !== $data) { |
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if (!isset($this->header)) { |
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$data = $this->readProxyHeader($data); |
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} |
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if ('' !== $data && false !== $data) { |
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$this->emit('data', array($data, $this)); |
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} |
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} elseif ('' === $data || false === $data || feof($stream)) { |
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$this->end(); |
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} |
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} |
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public function readProxyHeader($data) |
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{ |
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// Read the data, emit the rest. |
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$header = Header::parseHeader($data); |
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if ($header instanceof Header) { |
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$this->header = $header; |
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$this->emit('init', [$this]); |
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} else { |
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$this->header = false; |
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throw new \RuntimeException("Invalid proxy header received."); |
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} |
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return $data; |
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} |
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public function getHeader() |
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{ |
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if (!isset($this->header)) { |
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throw new \RuntimeException("Cannot use connection until a proxy header has been received."); |
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} |
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return $this->header; |
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} |
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public function getRemoteAddress() |
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{ |
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return $this->getHeader()->sourceAddress; |
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} |
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/** |
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* @return int The remote port for this connection. |
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*/ |
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public function getRemotePort() |
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{ |
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return $this->getHeader()->sourcePort; |
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} |
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/** |
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* @return int The target port for this connection. |
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*/ |
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public function getTargetPort() |
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{ |
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return $this->getHeader()->targetPort; |
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} |
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/** |
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* @return string The target address for this connection. |
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*/ |
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public function getTargetAddress() |
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{ |
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return $this->getHeader()->targetAddress; |
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} |
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} |
SAM-IT /
php-proxy-protocol
