<?PHP

  /**
   * phOSCAR
   * -------
   * An OSCAR-Implementation in PHP 5
   * 
   * This work is distributed within the terms of
   * creative commons attribution-share alike 2.0 germany
   * 
   * See http://creativecommons.org/licenses/by-sa/2.0/ for more information
   * 
   * @author Bernd Holzmueller <bernd@tiggerswelt.net>
   * @revision 03
   * @license http://creativecommons.org/licenses/by-sa/2.0/de/ Creative Commons Attribution-Share Alike 2.0 Germany
   * @homepage http://oss.tiggerswelt.net/oscar/
   * @copyright Copyright &copy; 2008 tiggersWelt.net 
   */

  require_once ("oscar/tlv/helper/tlv.php");
  
  class Oscar_TLV_Rendezvous extends Oscar_TLV_Helper_TLV {
    /* Type of this TLV */
    const TYPE = 0x0005;
    
    /* Types of this SNAC */
    const STATE_PROPOSE = 0x0000;
    const STATE_CANCEL  = 0x0001;
    const STATE_ACCEPT  = 0x0002;
    
    public $State = Oscar_TLV_Rendezvous::STATE_PROPOSE;
    public $Cookie = "";
    public $Service = "";
    
    // {{{ getTLVClasses
    /**
     * Retrive a list of prefered TLV-Types for this TLV
     * 
     * @access protected
     * @return array
     */
    protected function getTLVClasses () {
      return array (
        "Oscar_TLV_Rendezvous_Channel",
        "Oscar_TLV_Rendezvous_IP",
        "Oscar_TLV_Rendezvous_Proposed_IP",
        "Oscar_TLV_Rendezvous_Seen_IP",
        "Oscar_TLV_Rendezvous_Port",   
        "Oscar_TLV_Rendezvous_URL",    
        "Oscar_TLV_Rendezvous_Verfied_URL",
        "Oscar_TLV_Rendezvous_Sequence",   
        "Oscar_TLV_Rendezvous_Cancel",
        "Oscar_TLV_Rendezvous_Request_Check",
        "Oscar_TLV_Rendezvous_IP_XOR",
        "Oscar_TLV_Rendezvous_Port_XOR",
        "Oscar_TLV_Rendezvous_MaxVersion",
      );
    }  
    // }}}
    
    // {{{ parse
    /**
     * Parse this TLV
     * 
     * @access public
     * @return void
     */
    public function parse () {
      $this->State = Oscar_Common::str2int16 ($this->Data, 0, true);
      $this->Cookie = substr ($this->Data, 0, 8);
      $this->Service = substr ($this->Data, 8, 16);
      $this->Data = substr ($this->Data, 24);
      
      parent::parse ();
    }
    // }}}
    
    // {{{ generate
    /**
     * Generate a binary string from this TLV
     * 
     * @access public
     * @return string
     **/
    public function generate () {
      $this->Prepend = Oscar_Common::int16toStr ($this->State) .
                       substr ($this->Cookie, 0, 8) .
                       substr ($this->Service, 0, 16);
      
      return parent::generate ();
    }
    // }}}
  }

?>