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Differences Between: [Versions 310 and 311]

   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   * This file receives a registration request along with the registration token and returns a client_id.
  19   *
  20   * @copyright  2020 Claude Vervoort (Cengage), Carlos Costa, Adrian Hutchinson (Macgraw Hill)
  21   * @package    mod_lti
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  define('NO_DEBUG_DISPLAY', true);
  25  define('NO_MOODLE_COOKIES', true);
  26  
  27  use mod_lti\local\ltiopenid\registration_helper;
  28  use mod_lti\local\ltiopenid\registration_exception;
  29  
  30  require_once(__DIR__ . '/../../config.php');
  31  require_once($CFG->dirroot . '/mod/lti/locallib.php');
  32  
  33  $code = 200;
  34  $message = '';
  35  if ($_SERVER['REQUEST_METHOD'] === 'POST' or ($_SERVER['REQUEST_METHOD'] === 'GET')) {
  36      $doregister = $_SERVER['REQUEST_METHOD'] === 'POST';
  37      // Retrieve registration token from Bearer Authorization header.
  38      $authheader = moodle\mod\lti\OAuthUtil::get_headers()['Authorization'] ?? '';
  39      if (!($authheader && substr($authheader, 0, 7) == 'Bearer ')) {
  40          $message = 'missing_registration_token';
  41          $code = 401;
  42      } else {
  43  
  44          // Registers tool.
  45          try {
  46              $tokenres = registration_helper::get()->validate_registration_token(trim(substr($authheader, 7)));
  47              $type = new stdClass();
  48              $type->state = LTI_TOOL_STATE_PENDING;
  49              if (array_key_exists('type', $tokenres)) {
  50                  $type = $tokenres['type'];
  51              }
  52              if ($doregister) {
  53                  $registrationpayload = json_decode(file_get_contents('php://input'), true);
  54                  $config = registration_helper::get()->registration_to_config($registrationpayload, $tokenres['clientid']);
  55                  if ($type->id) {
  56                      lti_update_type($type, clone $config);
  57                      $typeid = $type->id;
  58                  } else {
  59                      $typeid = lti_add_type($type, clone $config);
  60                  }
  61                  header('Content-Type: application/json; charset=utf-8');
  62                  $message = json_encode(registration_helper::get()->config_to_registration((object)$config, $typeid));
  63              } else if ($type) {
  64                  $config = lti_get_type_config($type->id);
  65                  header('Content-Type: application/json; charset=utf-8');
  66                  $message = json_encode(registration_helper::get()->config_to_registration((object)$config, $type->id, $type));
  67              } else {
  68                  $code = 404;
  69                  $message = "No registration found.";
  70              }
  71          } catch (registration_exception $e) {
  72              $code = $e->getCode();
  73              $message = $e->getMessage();
  74          }
  75      }
  76  } else {
  77      $code = 400;
  78      $message = 'Unsupported operation';
  79  }
  80  $response = new \mod_lti\local\ltiservice\response();
  81  // Set code.
  82  $response->set_code($code);
  83  // Set body.
  84  $response->set_body($message);
  85  $response->send();