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<?php |
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/** |
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* sysPass |
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* |
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* @author nuxsmin |
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* @link https://syspass.org |
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* @copyright 2012-2019, Rubén Domínguez nuxsmin@$syspass.org |
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* |
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* This file is part of sysPass. |
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* |
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* sysPass is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* sysPass is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with sysPass. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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namespace SP\Util; |
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use SP\Core\Exceptions\SPException; |
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/** |
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* Class Connection para crear conexiones TCP o UDP |
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* |
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* @package SP\Util |
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*/ |
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final class Connection implements ConnectionInterface |
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{ |
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/** |
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* @var resource |
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*/ |
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protected $socket; |
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/** |
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* @var string |
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*/ |
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protected $host = ''; |
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/** |
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* @var int |
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*/ |
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protected $port = 0; |
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/** |
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* Código de error del socket |
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* |
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* @var int |
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*/ |
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protected $errorno = 0; |
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/** |
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* Mensaje de error del socket |
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* |
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* @var string |
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*/ |
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protected $errorstr = ''; |
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/** |
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* @param $host string El host a conectar |
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* @param $port string El puerto a conectar |
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*/ |
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public function __construct($host, $port) |
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{ |
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$this->host = gethostbyname($host); |
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$this->port = $port; |
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} |
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/** |
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* Obtener un socket |
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* |
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* @param $type int EL tipo de socket TCP/UDP |
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* |
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* @return resource |
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* @throws SPException |
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*/ |
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public function getSocket($type) |
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{ |
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switch ($type) { |
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case self::TYPE_TCP: |
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$this->socket = $this->getTCPSocket(); |
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break; |
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case self::TYPE_UDP: |
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$this->socket = $this->getUDPSocket(); |
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break; |
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default: |
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$this->socket = $this->getTCPSocket(); |
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break; |
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} |
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if ($this->socket === false) { |
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throw new SPException($this->getSocketError(), SPException::WARNING); |
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} |
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stream_set_timeout($this->socket, self::SOCKET_TIMEOUT); |
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return $this->socket; |
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} |
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/** |
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* Obtener un socket del tipo TCP |
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* |
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* @return resource |
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*/ |
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private function getTCPSocket() |
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{ |
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return stream_socket_client('tcp://' . $this->host . ':' . $this->port, $this->errorno, $this->errorstr, self::SOCKET_TIMEOUT); |
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// return @socket_create(AF_INET, SOCK_STREAM, SOL_TCP); |
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} |
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/** |
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* Obtener un socket del tipo UDP |
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* |
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* @return resource |
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*/ |
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private function getUDPSocket() |
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{ |
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return stream_socket_client('udp://' . $this->host . ':' . $this->port, $this->errorno, $this->errorstr, self::SOCKET_TIMEOUT); |
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// return @socket_create(AF_INET, SOCK_DGRAM, SOL_UDP); |
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} |
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/** |
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* Obtener el último error del socket |
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* |
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* @return string |
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*/ |
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public function getSocketError() |
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{ |
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return sprintf('%s (%d)', $this->errorstr, $this->errorno); |
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// return socket_strerror(socket_last_error($this->_socket)); |
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} |
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/** |
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* Cerrar el socket |
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*/ |
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public function closeSocket() |
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{ |
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fclose($this->socket); |
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// @socket_close($this->_socket); |
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} |
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/** |
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* Enviar un mensaje al socket |
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* |
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* @param $message string El mensaje a enviar |
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* |
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* @return int|bool |
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* @throws SPException |
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*/ |
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public function send($message) |
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{ |
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if (!is_resource($this->socket)) { |
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throw new SPException(__u('Socket not initialized'), SPException::WARNING); |
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} |
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$nBytes = @fwrite($this->socket, $message); |
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// $nBytes = @socket_sendto($this->_socket, $message, strlen($message), 0, $this->_host, $this->port); |
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if ($nBytes === false) { |
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throw new SPException(__u('Error while sending the data'), SPException::WARNING, $this->getSocketError()); |
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} |
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return $nBytes; |
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} |
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} |