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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
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/**
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 * Data provider.
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 *
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 * @package    core_fileconverter
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 * @copyright  2018 Frédéric Massart
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 * @author     Frédéric Massart <fred@branchup.tech>
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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namespace core_fileconverter\privacy;
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defined('MOODLE_INTERNAL') || die();
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use context;
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use core_privacy\local\metadata\collection;
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use core_privacy\local\request\approved_contextlist;
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use core_privacy\local\request\userlist;
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use core_privacy\local\request\approved_userlist;
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/**
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 * Data provider class.
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 *
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 * @package    core_fileconverter
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 * @copyright  2018 Frédéric Massart
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 * @author     Frédéric Massart <fred@branchup.tech>
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 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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 */
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class provider implements
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        \core_privacy\local\metadata\provider,
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        \core_privacy\local\request\core_userlist_provider,
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        \core_privacy\local\request\subsystem\provider {
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    /**
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     * Returns metadata.
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     *
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     * @param collection $collection The initialised collection to add items to.
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     * @return collection A listing of user data stored through this system.
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     */
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    public static function get_metadata(collection $collection): collection {
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        $collection->add_plugintype_link('fileconverter', [], 'privacy:metadata:plugintypefileconverter');
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        return $collection;
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    }
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    /**
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     * Get the list of contexts that contain user information for the specified user.
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     *
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     * @param int $userid The user to search.
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     * @return \contextlist $contextlist The contextlist containing the list of contexts used in this plugin.
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     */
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    public static function get_contexts_for_userid(int $userid): \core_privacy\local\request\contextlist {
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        // We cannot associate files with a particular user as it would require to know all the details about
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        // the source file, which only the component owning it knows about. And, the 'usermodified' attribute
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        // of the conversion class is not an identifier of data ownership, merely that this user was logged in
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        // when the conversion was requested. As such, as the owning component should declare the source file,
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        // and we can't make sense of 'usermodified', we will not be reporting anything here. Also note that
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        // the clean up task will ensure that whenever a source file is delete, its conversions also are.
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        return new \core_privacy\local\request\contextlist();
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    }
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    /**
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     * Get the list of users who have data within a context.
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     *
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     * @param userlist $userlist The userlist containing the list of users who have data in this context/plugin combination.
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     */
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    public static function get_users_in_context(userlist $userlist) {
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    }
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    /**
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     * Export all user data for the specified user, in the specified contexts.
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     *
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     * @param approved_contextlist $contextlist The approved contexts to export information for.
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     */
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    public static function export_user_data(approved_contextlist $contextlist) {
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    }
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    /**
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     * Delete all data for all users in the specified context.
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     *
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     * @param context $context The specific context to delete data for.
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     */
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    public static function delete_data_for_all_users_in_context(context $context) {
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    }
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    /**
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     * Delete multiple users within a single context.
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     *
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     * @param approved_userlist $userlist The approved context and user information to delete information for.
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     */
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    public static function delete_data_for_users(approved_userlist $userlist) {
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    }
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    /**
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     * Delete all user data for the specified user, in the specified contexts.
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     *
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     * @param approved_contextlist $contextlist The approved contexts and user information to delete information for.
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     */
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    public static function delete_data_for_user(approved_contextlist $contextlist) {
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    }
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}