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   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   * Callback and library methods for core communication.
  19   *
  20   * @package    core_communication
  21   * @copyright  2023 Safat Shahin <safat.shahin@moodle.com>
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  /**
  26   * Serve the files from the core_communication file areas.
  27   *
  28   * @param stdClass $course the course object
  29   * @param stdClass $cm the course module object
  30   * @param context $context the context
  31   * @param string $filearea the name of the file area
  32   * @param array $args extra arguments (itemid, path)
  33   * @param bool $forcedownload whether force download
  34   * @param array $options additional options affecting the file serving
  35   */
  36  function core_communication_pluginfile(
  37      $course,
  38      $cm,
  39      $context,
  40      $filearea,
  41      $args,
  42      $forcedownload,
  43      array $options = []
  44  ): void {
  45  
  46      if ($filearea !== 'avatar') {
  47          return;
  48      }
  49  
  50      $itemid = array_shift($args);
  51      $filename = array_pop($args);
  52  
  53      // Retrieve the file from the Files API.
  54      $fs = get_file_storage();
  55      $file = $fs->get_file($context->id, 'core_communication', $filearea, $itemid, '/', $filename);
  56      if (!$file) {
  57          return;
  58      }
  59  
  60      send_file($file, $filename);
  61  }