mnet/remote_client.php

   1 <?php // $Id$
   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                 $newkey = param_clean($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 ?>