admin/maintenance.php

   1 <?php // $Id$
   2       // Enables/disables maintenance mode
   3
   4     require('../config.php');
   5     require_once($CFG->libdir.'/adminlib.php');
   6
   7     $action = optional_param('action', '', PARAM_ALPHA);
   8
   9     $adminroot = admin_get_root();
  10     admin_externalpage_setup('maintenancemode', $adminroot);
  11
  12     //Check folder exists
  13     if (! make_upload_directory(SITEID)) {   // Site folder
  14             error("Could not create site folder.  The site administrator needs to fix the file permissions");
  15         }
  16
  17     $filename = $CFG->dataroot.'/'.SITEID.'/maintenance.html';
  18
  19     if ($form = data_submitted()) {
  20         if (confirm_sesskey()) {
  21             if ($form->action == "disable") {
  22                 unlink($filename);
  23                 redirect('maintenance.php', get_string('sitemaintenanceoff','admin'));
  24             } else {
  25                 $file = fopen($filename, 'w');
  26                 fwrite($file, stripslashes($form->text));
  27                 fclose($file);
  28                 redirect('maintenance.php', get_string('sitemaintenanceon', 'admin'));
  29             }
  30         }
  31     }
  32
  33 /// Print the header stuff
  34
  35     admin_externalpage_print_header($adminroot);
  36
  37 /// Print the appropriate form
  38
  39     if (file_exists($filename)) {   // We are in maintenance mode
  40         echo '<center>';
  41         echo '<form action="maintenance.php" method="post">';
  42         echo '<input type="hidden" name="action" value="disable">';
  43         echo '<input type="hidden" name="sesskey" value="'.sesskey().'">';
  44         echo '<p><input type="submit" value="'.get_string('disable').'"></p>';
  45         echo '</form>';
  46         echo '</center>';
  47     } else {                        // We are not in maintenance mode
  48         $usehtmleditor = can_use_html_editor();
  49
  50         echo '<center>';
  51         echo '<form action="maintenance.php" method="post">';
  52         echo '<input type="hidden" name="action" value="enable">';
  53         echo '<input type="hidden" name="sesskey" value="'.sesskey().'">';
  54         echo '<p><input type="submit" value="'.get_string('enable').'"></p>';
  55         echo '<p>'.get_string('optionalmaintenancemessage', 'admin').':</p>';
  56         echo '<table><tr><td>';
  57         print_textarea($usehtmleditor, 20, 50, 600, 400, "text");
  58         echo '</td></tr></table>';
  59         echo '</form>';
  60         echo '</center>';
  61
  62         if ($usehtmleditor) {
  63             use_html_editor();
  64         }
  65     }
  66
  67     admin_externalpage_print_footer($adminroot);
  68 ?>