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Differences Between: [Versions 310 and 311] [Versions 310 and 400] [Versions 310 and 401] [Versions 310 and 402] [Versions 310 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  /**
  19   * External backup API.
  20   *
  21   * @package    core_backup
  22   * @category   external
  23   * @copyright  2018 Matt Porritt <mattp@catalyst-au.net>
  24   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  25   */
  26  
  27  defined('MOODLE_INTERNAL') || die;
  28  
  29  require_once("$CFG->libdir/externallib.php");
  30  require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php');
  31  require_once($CFG->dirroot . '/backup/util/includes/restore_includes.php');
  32  
  33  /**
  34   * Backup external functions.
  35   *
  36   * @package    core_backup
  37   * @category   external
  38   * @copyright  2018 Matt Porritt <mattp@catalyst-au.net>
  39   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  40   * @since Moodle 3.7
  41   */
  42  class core_backup_external extends external_api {
  43  
  44      /**
  45       * Returns description of method parameters
  46       *
  47       * @return external_function_parameters
  48       * @since Moodle 3.7
  49       */
  50      public static function get_async_backup_progress_parameters() {
  51          return new external_function_parameters(
  52              array(
  53                  'backupids' => new external_multiple_structure(
  54                          new external_value(PARAM_ALPHANUM, 'Backup id to get progress for', VALUE_REQUIRED, null, NULL_ALLOWED),
  55                          'Backup id to get progress for', VALUE_REQUIRED
  56                   ),
  57                  'contextid' => new external_value(PARAM_INT, 'Context id', VALUE_REQUIRED, null, NULL_NOT_ALLOWED),
  58              )
  59          );
  60      }
  61  
  62      /**
  63       * Get asynchronous backup progress.
  64       *
  65       * @param string $backupids The ids of the backup to get progress for.
  66       * @param int $contextid The context the backup relates to.
  67       * @return array $results The array of results.
  68       * @since Moodle 3.7
  69       */
  70      public static function get_async_backup_progress($backupids, $contextid) {
  71          // Release session lock.
  72          \core\session\manager::write_close();
  73  
  74          // Parameter validation.
  75          self::validate_parameters(
  76                  self::get_async_backup_progress_parameters(),
  77                  array(
  78                      'backupids' => $backupids,
  79                      'contextid' => $contextid
  80                  )
  81          );
  82  
  83          // Context validation.
  84          list($context, $course, $cm) = get_context_info_array($contextid);
  85          self::validate_context($context);
  86  
  87          if ($cm) {
  88              require_capability('moodle/backup:backupactivity', $context);
  89          } else {
  90              require_capability('moodle/backup:backupcourse', $context);
  91          }
  92  
  93          $results = array();
  94          foreach ($backupids as $backupid) {
  95              $results[] = backup_controller_dbops::get_progress($backupid);
  96          }
  97  
  98          return $results;
  99      }
 100  
 101      /**
 102       * Returns description of method result value
 103       *
 104       * @return external_description
 105       * @since Moodle 3.7
 106       */
 107      public static function get_async_backup_progress_returns() {
 108          return new external_multiple_structure(
 109              new external_single_structure(
 110                  array(
 111                      'status'   => new external_value(PARAM_INT, 'Backup Status'),
 112                      'progress' => new external_value(PARAM_FLOAT, 'Backup progress'),
 113                      'backupid' => new external_value(PARAM_ALPHANUM, 'Backup id'),
 114                      'operation' => new external_value(PARAM_ALPHANUM, 'operation type'),
 115                  ), 'Backup completion status'
 116            ), 'Backup data'
 117          );
 118      }
 119  
 120      /**
 121       * Returns description of method parameters
 122       *
 123       * @return external_function_parameters
 124       * @since Moodle 3.7
 125       */
 126      public static function get_async_backup_links_backup_parameters() {
 127          return new external_function_parameters(
 128                  array(
 129                      'filename' => new external_value(PARAM_FILE, 'Backup filename', VALUE_REQUIRED, null, NULL_NOT_ALLOWED),
 130                      'contextid' => new external_value(PARAM_INT, 'Context id', VALUE_REQUIRED, null, NULL_NOT_ALLOWED),
 131                  )
 132           );
 133      }
 134  
 135      /**
 136       * Get the data to be used when generating the table row for an asynchronous backup,
 137       * the table row updates via ajax when backup is complete.
 138       *
 139       * @param string $filename The file name of the backup file.
 140       * @param int $contextid The context the backup relates to.
 141       * @since Moodle 3.7
 142       */
 143      public static function get_async_backup_links_backup($filename, $contextid) {
 144          // Release session lock.
 145          \core\session\manager::write_close();
 146  
 147          // Parameter validation.
 148          self::validate_parameters(
 149                  self::get_async_backup_links_backup_parameters(),
 150                      array(
 151                          'filename' => $filename,
 152                          'contextid' => $contextid
 153                      )
 154                  );
 155  
 156          // Context validation.
 157          list($context, $course, $cm) = get_context_info_array($contextid);
 158          self::validate_context($context);
 159          require_capability('moodle/backup:backupcourse', $context);
 160  
 161          if ($cm) {
 162              $filearea = 'activity';
 163          } else {
 164              $filearea = 'course';
 165          }
 166  
 167          $results = \async_helper::get_backup_file_info($filename, $filearea, $contextid);
 168  
 169          return $results;
 170      }
 171  
 172      /**
 173       * Returns description of method result value.
 174       *
 175       * @return external_description
 176       * @since Moodle 3.7
 177       */
 178      public static function get_async_backup_links_backup_returns() {
 179          return new external_single_structure(
 180              array(
 181                 'filesize'   => new external_value(PARAM_TEXT, 'Backup file size'),
 182                 'fileurl' => new external_value(PARAM_URL, 'Backup file URL'),
 183                 'restoreurl' => new external_value(PARAM_URL, 'Backup restore URL'),
 184          ), 'Table row data.');
 185      }
 186      /**
 187       * Returns description of method parameters
 188       *
 189       * @return external_function_parameters
 190       * @since Moodle 3.7
 191       */
 192      public static function get_async_backup_links_restore_parameters() {
 193          return new external_function_parameters(
 194                  array(
 195                      'backupid' => new external_value(PARAM_ALPHANUMEXT, 'Backup id', VALUE_REQUIRED, null, NULL_NOT_ALLOWED),
 196                      'contextid' => new external_value(PARAM_INT, 'Context id', VALUE_REQUIRED, null, NULL_NOT_ALLOWED),
 197                  )
 198          );
 199      }
 200  
 201      /**
 202       * Get the data to be used when generating the table row for an asynchronous restore,
 203       * the table row updates via ajax when restore is complete.
 204       *
 205       * @param string $backupid The id of the backup record.
 206       * @param int $contextid The context the restore relates to.
 207       * @return array $results The array of results.
 208       * @since Moodle 3.7
 209       */
 210      public static function get_async_backup_links_restore($backupid, $contextid) {
 211          // Release session lock.
 212          \core\session\manager::write_close();
 213  
 214          // Parameter validation.
 215          self::validate_parameters(
 216                  self::get_async_backup_links_restore_parameters(),
 217                      array(
 218                          'backupid' => $backupid,
 219                          'contextid' => $contextid
 220                      )
 221                  );
 222  
 223          // Context validation.
 224          if ($contextid == 0) {
 225              $copyrec = \async_helper::get_backup_record($backupid);
 226              $context = context_course::instance($copyrec->itemid);
 227          } else {
 228              $context = context::instance_by_id($contextid);
 229          }
 230          self::validate_context($context);
 231          require_capability('moodle/restore:restorecourse', $context);
 232  
 233          $results = \async_helper::get_restore_url($backupid);
 234  
 235          return $results;
 236      }
 237  
 238      /**
 239       * Returns description of method result value.
 240       *
 241       * @return external_description
 242       * @since Moodle 3.7
 243       */
 244      public static function get_async_backup_links_restore_returns() {
 245          return new external_single_structure(
 246                  array(
 247                      'restoreurl' => new external_value(PARAM_URL, 'Restore url'),
 248                  ), 'Table row data.');
 249      }
 250  
 251      /**
 252       * Returns description of method parameters
 253       *
 254       * @return external_function_parameters
 255       * @since Moodle 3.9
 256       */
 257      public static function get_copy_progress_parameters() {
 258          return new external_function_parameters(
 259              array(
 260                  'copies' => new external_multiple_structure(
 261                      new external_single_structure(
 262                          array(
 263                              'backupid' => new external_value(PARAM_ALPHANUM, 'Backup id'),
 264                              'restoreid' => new external_value(PARAM_ALPHANUM, 'Restore id'),
 265                              'operation' => new external_value(PARAM_ALPHANUM, 'Operation type'),
 266                          ), 'Copy data'
 267                      ), 'Copy data'
 268                  ),
 269              )
 270          );
 271      }
 272  
 273      /**
 274       * Get the data to be used when generating the table row for a course copy,
 275       * the table row updates via ajax when copy is complete.
 276       *
 277       * @param array $copies Array of ids.
 278       * @return array $results The array of results.
 279       * @since Moodle 3.9
 280       */
 281      public static function get_copy_progress($copies) {
 282          // Release session lock.
 283          \core\session\manager::write_close();
 284  
 285          // Parameter validation.
 286          self::validate_parameters(
 287              self::get_copy_progress_parameters(),
 288              array('copies' => $copies)
 289              );
 290  
 291          $results = array();
 292  
 293          foreach ($copies as $copy) {
 294  
 295              if ($copy['operation'] == \backup::OPERATION_BACKUP) {
 296                  $copyid = $copy['backupid'];
 297              } else {
 298                  $copyid = $copy['restoreid'];
 299              }
 300  
 301              $copyrec = \async_helper::get_backup_record($copyid);
 302              $context = context_course::instance($copyrec->itemid);
 303              self::validate_context($context);
 304  
 305              $copycaps = \core_course\management\helper::get_course_copy_capabilities();
 306              require_all_capabilities($copycaps, $context);
 307  
 308              if ($copy['operation'] == \backup::OPERATION_BACKUP) {
 309                  $result = \backup_controller_dbops::get_progress($copyid);
 310                  if ($result['status'] == \backup::STATUS_FINISHED_OK) {
 311                      $copyid = $copy['restoreid'];
 312                  }
 313              }
 314  
 315              $results[] = \backup_controller_dbops::get_progress($copyid);
 316          }
 317  
 318          return $results;
 319      }
 320  
 321      /**
 322       * Returns description of method result value.
 323       *
 324       * @return external_description
 325       * @since Moodle 3.9
 326       */
 327      public static function get_copy_progress_returns() {
 328          return new external_multiple_structure(
 329              new external_single_structure(
 330                  array(
 331                      'status'   => new external_value(PARAM_INT, 'Copy Status'),
 332                      'progress' => new external_value(PARAM_FLOAT, 'Copy progress'),
 333                      'backupid' => new external_value(PARAM_ALPHANUM, 'Copy id'),
 334                      'operation' => new external_value(PARAM_ALPHANUM, 'Operation type'),
 335                  ), 'Copy completion status'
 336              ), 'Copy data'
 337          );
 338      }
 339  
 340      /**
 341       * Returns description of method parameters
 342       *
 343       * @return external_function_parameters
 344       * @since Moodle 3.9
 345       */
 346      public static function submit_copy_form_parameters() {
 347          return new external_function_parameters(
 348              array(
 349                  'jsonformdata' => new external_value(PARAM_RAW, 'The data from the create copy form, encoded as a json array')
 350              )
 351          );
 352      }
 353  
 354      /**
 355       * Submit the course group form.
 356       *
 357       * @param string $jsonformdata The data from the form, encoded as a json array.
 358       * @return int new group id.
 359       */
 360      public static function submit_copy_form($jsonformdata) {
 361  
 362          // Release session lock.
 363          \core\session\manager::write_close();
 364  
 365          // We always must pass webservice params through validate_parameters.
 366          $params = self::validate_parameters(
 367              self::submit_copy_form_parameters(),
 368              array('jsonformdata' => $jsonformdata)
 369              );
 370  
 371          $formdata = json_decode($params['jsonformdata']);
 372  
 373          $data = array();
 374          parse_str($formdata, $data);
 375  
 376          $context = context_course::instance($data['courseid']);
 377          self::validate_context($context);
 378          $copycaps = \core_course\management\helper::get_course_copy_capabilities();
 379          require_all_capabilities($copycaps, $context);
 380  
 381          // Submit the form data.
 382          $course = get_course($data['courseid']);
 383          $mform = new \core_backup\output\copy_form(
 384              null,
 385              array('course' => $course, 'returnto' => '', 'returnurl' => ''),
 386              'post', '', ['class' => 'ignoredirty'], true, $data);
 387          $mdata = $mform->get_data();
 388  
 389          if ($mdata) {
 390              // Create the copy task.
 391              $backupcopy = new \core_backup\copy\copy($mdata);
 392              $copyids = $backupcopy->create_copy();
 393          } else {
 394              throw new moodle_exception('copyformfail', 'backup');
 395          }
 396  
 397          return json_encode($copyids);
 398      }
 399  
 400      /**
 401       * Returns description of method result value.
 402       *
 403       * @return external_description
 404       * @since Moodle 3.9
 405       */
 406      public static function submit_copy_form_returns() {
 407          return new external_value(PARAM_RAW, 'JSON response.');
 408      }
 409  }