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   1  <?php
   2      // Allows the admin to configure services for remote hosts
   3  
   4      require(__DIR__.'/../../config.php');
   5      require_once($CFG->libdir.'/adminlib.php');
   6      include_once($CFG->dirroot.'/mnet/lib.php');
   7  
   8      require_login();
   9      admin_externalpage_setup('trustedhosts');
  10  
  11      $context = context_system::instance();
  12  
  13      require_capability('moodle/site:config', $context, $USER->id, true, "nopermissions");
  14  
  15      if (!extension_loaded('openssl')) {
  16          echo $OUTPUT->header();
  17          print_error('requiresopenssl', 'mnet', '', NULL, true);
  18      }
  19  
  20      $site = get_site();
  21  
  22      $trusted_hosts = '';//array();
  23      $old_trusted_hosts = get_config('mnet', 'mnet_trusted_hosts');
  24      if (!empty($old_trusted_hosts)) {
  25          $old_trusted_hosts =  explode(',', $old_trusted_hosts);
  26      } else {
  27          $old_trusted_hosts = array();
  28      }
  29  
  30      $test_ip_address = optional_param('testipaddress', NULL, PARAM_HOST);
  31      $in_range = false;
  32      if (!empty($test_ip_address)) {
  33          foreach($old_trusted_hosts as $host) {
  34              if (address_in_subnet($test_ip_address, $host)) {
  35                  $in_range = true;
  36                  $validated_by = $host;
  37                  break;
  38              }
  39          }
  40      }
  41  
  42      /// If data submitted, process and store
  43      if (($form = data_submitted()) && confirm_sesskey()) {
  44          $hostlist = preg_split("/[\s,]+/", $form->hostlist);
  45          foreach($hostlist as $host) {
  46              list($address, $mask) = explode('/', $host.'/');
  47              if (empty($address)) continue;
  48              if (strlen($mask) == 0) $mask = 32;
  49              $trusted_hosts .= trim($address).'/'.trim($mask)."\n";
  50              unset($address, $mask);
  51          }
  52          set_config('mnet_trusted_hosts', str_replace("\n", ',', $trusted_hosts), 'mnet');
  53      } elseif (!empty($old_trusted_hosts)) {
  54          foreach($old_trusted_hosts as $host) {
  55              list($address, $mask) = explode('/', $host.'/');
  56              if (empty($address)) continue;
  57              if (strlen($mask) == 0) $mask = 32;
  58              $trusted_hosts .= trim($address).'/'.trim($mask)."\n";
  59              unset($address, $mask);
  60          }
  61      }
  62  
  63      include ('./trustedhosts.html');