MDL-61948 core_media: Implement null privacy provider

lang/en/media.php

@@ -33,6 +33,7 @@
 $string['mediaformats_desc'] = 'When players are enabled, media files can be embedded using the multimedia plugins filter (if enabled) or using a file or URL resource. When not enabled, these formats are not embedded and users can download or follow links to these resources.
 
 Where two players support the same format, enabling both increases compatibility across different devices such as mobile phones. It is possible to increase compatibility further by providing multiple files in different formats for a single audio or video clip.';
+$string['privacy:metadata'] = 'Media embedding does not store any personal data.';
 $string['supports'] = 'Supports';
 $string['videoextensions'] = 'Video: {$a}';
 

media/classes/privacy/provider.php

@@ -0,0 +1,46 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * Privacy provider implementation for core_media.
+ *
+ * @package    core_media
+ * @copyright  2018 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+namespace core_media\privacy;
+
+defined('MOODLE_INTERNAL') || die();
+
+/**
+ * Privacy provider implementation for core_media.
+ *
+ * @copyright  2018 Mihail Geshoski <mihail@moodle.com>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class provider implements \core_privacy\local\metadata\null_provider {
+
+    /**
+     * Get the language string identifier with the component's language
+     * file to explain why this plugin stores no data.
+     *
+     * @return  string
+     */
+    public static function get_reason() : string {
+        return 'privacy:metadata';
+    }
+}