Location: PHPKode > projects > TeamSpeak 3 PHP Framework > libraries/TeamSpeak3/Adapter/TSDNS.php
<?php

/**
 * @file
 * TeamSpeak 3 PHP Framework
 *
 * $Id: TSDNS.php 3/8/2013 6:00:05 hide@address.com $
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 * @package   TeamSpeak3
 * @version   1.1.20
 * @author    Sven 'ScP' Paulsen
 * @copyright Copyright (c) 2010 by Planet TeamSpeak. All rights reserved.
 */

/**
 * @class TeamSpeak3_Adapter_TSDNS
 * @brief Provides methods to query a TSDNS server.
 */
class TeamSpeak3_Adapter_TSDNS extends TeamSpeak3_Adapter_Abstract
{
  /**
   * The TCP port number used by any TSDNS server.
   *
   * @var integer
   */
  protected $default_port = 41144;

  /**
   * Connects the TeamSpeak3_Transport_Abstract object and performs initial actions on the remote
   * server.
   *
   * @throws TeamSpeak3_Adapter_Exception
   * @return void
   */
  public function syn()
  {
    if(!isset($this->options["port"]) || empty($this->options["port"])) $this->options["port"] = $this->default_port;

    $this->initTransport($this->options);
    $this->transport->setAdapter($this);

    TeamSpeak3_Helper_Profiler::init(spl_object_hash($this));

    TeamSpeak3_Helper_Signal::getInstance()->emit("tsdnsConnected", $this);
  }

  /**
   * The TeamSpeak3_Adapter_FileTransfer destructor.
   *
   * @return void
   */
  public function __destruct()
  {
    if($this->getTransport() instanceof TeamSpeak3_Transport_Abstract && $this->getTransport()->isConnected())
    {
      $this->getTransport()->disconnect();
    }
  }

  /**
   * Queries the TSDNS server for a specified virtual hostname and returns the result.
   *
   * @param  string $tsdns
   * @throws TeamSpeak3_Adapter_TSDNS_Exception
   * @return TeamSpeak3_Helper_String
   */
  public function resolve($tsdns)
  {
    $this->getTransport()->sendLine($tsdns);
    $repl = $this->getTransport()->readLine();
    $this->getTransport()->disconnect();

    if($repl->section(":", 0)->toInt() == 404)
    {
      throw new TeamSpeak3_Adapter_TSDNS_Exception("unable to resolve TSDNS hostname (" . $tsdns . ")");
    }

    TeamSpeak3_Helper_Signal::getInstance()->emit("tsdnsResolved", $tsdns, $repl);

    return $repl;
  }
}
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