[Sommaire] [Imprimer]

   1  <?php
   2  /**
   3   * The Net_IMSP_Auth_imtest class for IMSP authentication.
   4   *
   5   * Required parameters:<pre>
   6   *   'username'        Username to logon to IMSP server as.
   7   *   'password'        Password for current user.
   8   *   'server'          The hostname of the IMSP server.
   9   *   'port'            The port of the IMSP server.
  10   *   'socket'          The named socket to use for connection
  11   *   'command'         Path to the imtest command on localhost
  12   *   'auth_mechanism'  Authentication method to use with imtest</pre>
  13   *
  14   * $Horde: framework/Net_IMSP/IMSP/Auth/imtest.php,v 1.12.2.4 2006/01/01 21:28:28 jan Exp $
  15   *
  16   * Copyright 2005-2006      Liam Hoekenga <liamr@umich.edu>
  17   * Copyright 2003-2006 Michael Rubinsky <mrubinsk@horde.org>
  18   *
  19   * See the enclosed file COPYING for license information (LGPL). If you
  20   * did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
  21   *
  22   * @author  Liam Hoekenga <liamr@umich.edu>
  23   * @author  Michael Rubinsky <mrubinsk@horde.org>
  24   * @package Net_IMSP
  25   */
  26  class Net_IMSP_Auth_imtest extends Net_IMSP_Auth {
  27  
  28      /**
  29       * Private authentication function.  Provides actual
  30       * authentication code.
  31       *
  32       * @access private
  33       * @param  mixed  $params Hash of IMSP parameters.
  34       *
  35       * @return mixed  Net_IMSP object connected to server if successful,
  36       *                PEAR_Error on failure.
  37       */
  38      function &_authenticate($params)
  39      {
  40          $imsp = &Net_IMSP::singleton('none', $params);
  41          $command = '';
  42          $error_return = '';
  43  
  44          if (strtolower($params['auth_mechanism']) == 'gssapi' &&
  45              isset($_SERVER['KRB5CCNAME'])) {
  46                  $command .= 'KRB5CCNAME=' . $_SERVER['KRB5CCNAME'];
  47          }
  48  
  49          $command .= ' '    . $params['command'].
  50                      ' -m ' . $params['auth_mechanism'] .
  51                      ' -u ' . escapeshellarg($params['username']) .
  52                      ' -a ' . escapeshellarg($params['username']) .
  53                      ' -w ' . escapeshellarg($params['password']).
  54                      ' -p ' . $params['port'] .
  55                      ' -X ' . $params['socket'] .
  56                      ' '    . $params['server'];
  57  
  58          $conn_attempts = 0;
  59          while ($conn_attempts++ < 4) {
  60              $attempts = 0;
  61              if (!file_exists($params['socket'])) {
  62                  exec($command . ' > /dev/null 2>&1');
  63                  sleep(1);
  64                  while (!file_exists($params['socket'])) {
  65                      usleep(200000);
  66                      if ($attempts++ > 5) {
  67                          $error_return = ': No socket after 10 seconds of trying!';
  68                          continue 2;
  69                      }
  70                  }
  71              }
  72              $fp = @fsockopen($params['socket'], 0, $error_number, $error_string, 30);
  73              $error_return = $error_string;
  74              if ($fp) break;
  75              unlink($params['socket']);
  76  
  77          }
  78          //Failure?
  79          if (!empty($error_return)) {
  80              return $imsp->imspError('Connection to IMSP host failed.' . ': ' . $error_return, __FILE__, __LINE__);
  81          }
  82          //Success
  83          $imsp->_stream = $fp;
  84          return $imsp;
  85      }
  86  
  87      /**
  88       * Force a logout command to the imsp stream.
  89       *
  90       */
  91      function logout()
  92      {
  93          $this->_imsp->logout();
  94      }
  95  
  96      /**
  97       * Returns the driver type.
  98       *
  99       * @return string  The type of this IMSP_Auth driver.
 100       */
 101      function getDriverType()
 102      {
 103          return 'imtest';
 104      }
 105  }