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   1  <?php // $Id: remote_client.php,v 1.3.2.2 2008/09/25 09:57:33 peterbulmer Exp $
   2  /**
   3   * An object to represent lots of information about an RPC-peer machine
   4   *
   5   * @author  Donal McMullan  donal@catalyst.net.nz
   6   * @version 0.0.1
   7   * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   8   * @package mnet
   9   */
  10  
  11  class mnet_remote_client extends mnet_peer {
  12  
  13      // If the remote client is trying to execute a method on an object instead
  14      // of just a function, we'll instantiate the proper class and store it in
  15      // this 'object_to_call' property.
  16      var $object_to_call         = false;
  17      var $request_was_encrypted  = false;
  18      var $request_was_signed     = false;
  19  
  20      function was_encrypted() {
  21          $this->request_was_encrypted  = true;
  22      }
  23  
  24      function was_signed() {
  25          $this->request_was_signed  = true;
  26      }
  27  
  28      function object_to_call($object) {
  29          $this->object_to_call = $object;
  30      }
  31  
  32      function plaintext_is_ok() {
  33          global $CFG;
  34  
  35          $trusted_hosts = explode(',', get_config('mnet', 'mnet_trusted_hosts'));
  36  
  37          foreach($trusted_hosts as $host) {
  38              list($network, $mask) = explode('/', $host.'/');
  39              if (empty($network)) continue;
  40              if (strlen($mask) == 0) $mask = 32;
  41              
  42              if (ip_in_range($_SERVER['REMOTE_ADDR'], $network, $mask)) {
  43                  return true;
  44              }
  45          }
  46  
  47          return false;
  48      }
  49  
  50      function refresh_key() {
  51          global $CFG;
  52          // set up an RPC request
  53          require_once $CFG->dirroot.'/mnet/xmlrpc/client.php';
  54          $mnetrequest = new mnet_xmlrpc_client();
  55          // Use any method - listServices is pretty lightweight.
  56          $mnetrequest->set_method('system/listServices');
  57  
  58          // Do RPC call and store response
  59          if ($mnetrequest->send($this) === true) {
  60              // Ok - we actually don't care about the result
  61              $temp = new mnet_peer();
  62              $temp->set_id($this->id);
  63              if($this->public_key != $temp->public_key) {
  64                  $newkey = clean_param($temp->public_key, PARAM_PEM);
  65                  if(!empty($newkey)) {
  66                      $this->public_key = $newkey;
  67                      return true;
  68                  }
  69              }
  70          }
  71          return false;
  72      }
  73  }
  74  ?>