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Differences Between: [Versions 311 and 401] [Versions 311 and 402] [Versions 311 and 403]

   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Renders text with the active filters and returns it. Used to create previews of equations
  19   * using whatever tex filters are enabled.
  20   *
  21   * @package    atto_equation
  22   * @copyright  2014 Damyon Wiese
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  define('AJAX_SCRIPT', true);
  27  
  28  require_once(__DIR__ . '/../../../../../config.php');
  29  
  30  $contextid = required_param('contextid', PARAM_INT);
  31  
  32  list($context, $course, $cm) = get_context_info_array($contextid);
  33  $PAGE->set_url('/lib/editor/atto/plugins/equation/ajax.php');
  34  $PAGE->set_context($context);
  35  
  36  require_login($course, false, $cm);
  37  require_sesskey();
  38  
  39  $action = required_param('action', PARAM_ALPHA);
  40  
  41  if ($action === 'filtertext') {
  42      $text = required_param('text', PARAM_RAW);
  43  
  44      $result = filter_manager::instance()->filter_text($text, $context);
  45      echo $OUTPUT->header();
  46      echo $result;
  47  
  48      die();
  49  }
  50  
  51  print_error('invalidarguments');