Proyectos de Subversion Moodle

<?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/>.

declare(strict_types=1);

namespace core_reportbuilder\privacy;

use context;

use stdClass;

use core_privacy\local\metadata\collection;

use core_privacy\local\request\approved_contextlist;

use core_privacy\local\request\approved_userlist;

use core_privacy\local\request\contextlist;

use core_privacy\local\request\core_userlist_provider;

use core_privacy\local\request\transform;

use core_privacy\local\request\userlist;

use core_privacy\local\request\user_preference_provider;

use core_privacy\local\request\writer;

use core_reportbuilder\manager;

use core_reportbuilder\local\helpers\user_filter_manager;

use core_reportbuilder\local\helpers\schedule as schedule_helper;

use core_reportbuilder\local\models\audience;

use core_reportbuilder\local\models\column;

use core_reportbuilder\local\models\filter;

use core_reportbuilder\local\models\report;

use core_reportbuilder\local\models\schedule;

/**

 * Privacy Subsystem for core_reportbuilder

 *

 * @package     core_reportbuilder

 * @copyright   2021 David Matamoros <davidmc@moodle.com>

 * @license     http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

 */

class provider implements

    \core_privacy\local\metadata\provider,

    \core_privacy\local\request\plugin\provider,

    core_userlist_provider,

    user_preference_provider {

    /**

     * Returns metadata about the component

     *

     * @param collection $collection

     * @return collection

     */

    public static function get_metadata(collection $collection): collection {

        $collection->add_database_table(report::TABLE, [

            'name' => 'privacy:metadata:report:name',

            'source' => 'privacy:metadata:report:source',

            'conditiondata' => 'privacy:metadata:report:conditiondata',

            'settingsdata' => 'privacy:metadata:report:settingsdata',

            'uniquerows' => 'privacy:metadata:report:uniquerows',

            'usercreated' => 'privacy:metadata:report:usercreated',

            'usermodified' => 'privacy:metadata:report:usermodified',

            'timecreated' => 'privacy:metadata:report:timecreated',

            'timemodified' => 'privacy:metadata:report:timemodified',

        ], 'privacy:metadata:report');

        $collection->add_database_table(column::TABLE, [

            'uniqueidentifier' => 'privacy:metadata:column:uniqueidentifier',

            'usercreated' => 'privacy:metadata:column:usercreated',

            'usermodified' => 'privacy:metadata:column:usermodified',

        ], 'privacy:metadata:column');

        $collection->add_database_table(filter::TABLE, [

            'uniqueidentifier' => 'privacy:metadata:filter:uniqueidentifier',

            'usercreated' => 'privacy:metadata:filter:usercreated',

            'usermodified' => 'privacy:metadata:filter:usermodified',

        ], 'privacy:metadata:filter');

        $collection->add_database_table(audience::TABLE, [

            'classname' => 'privacy:metadata:audience:classname',

            'configdata' => 'privacy:metadata:audience:configdata',

            'heading' => 'privacy:metadata:audience:heading',

            'usercreated' => 'privacy:metadata:audience:usercreated',

            'usermodified' => 'privacy:metadata:audience:usermodified',

            'timecreated' => 'privacy:metadata:audience:timecreated',

            'timemodified' => 'privacy:metadata:audience:timemodified',

        ], 'privacy:metadata:audience');

        $collection->add_database_table(schedule::TABLE, [

            'name' => 'privacy:metadata:schedule:name',

            'enabled' => 'privacy:metadata:schedule:enabled',

            'audiences' => 'privacy:metadata:schedule:audiences',

            'format' => 'privacy:metadata:schedule:format',

            'subject' => 'privacy:metadata:schedule:subject',

            'message' => 'privacy:metadata:schedule:message',

            'userviewas' => 'privacy:metadata:schedule:userviewas',

            'timescheduled' => 'privacy:metadata:schedule:timescheduled',

            'recurrence' => 'privacy:metadata:schedule:recurrence',

            'reportempty' => 'privacy:metadata:schedule:reportempty',

            'usercreated' => 'privacy:metadata:schedule:usercreated',

            'usermodified' => 'privacy:metadata:schedule:usermodified',

            'timecreated' => 'privacy:metadata:schedule:timecreated',

            'timemodified' => 'privacy:metadata:schedule:timemodified',

        ], 'privacy:metadata:schedule');

        $collection->add_user_preference('core_reportbuilder', 'privacy:metadata:preference:reportfilter');

        return $collection;

    }

    /**

     * Export all user preferences for the component

     *

     * @param int $userid

     */

    public static function export_user_preferences(int $userid): void {

        $preferencestring = get_string('privacy:metadata:preference:reportfilter', 'core_reportbuilder');

        $filters = user_filter_manager::get_all_for_user($userid);

        foreach ($filters as $key => $filter) {

            writer::export_user_preference('core_reportbuilder',

                $key,

                json_encode($filter, JSON_PRETTY_PRINT),

                $preferencestring

            );

        }

    }

    /**

     * Get export sub context for a report

     *

     * @param report $report

     * @return array

     */

    public static function get_export_subcontext(report $report): array {

        $reportnode = implode('-', [

            $report->get('id'),

            clean_filename($report->get_formatted_name()),

        ]);

        return [get_string('reportbuilder', 'core_reportbuilder'), $reportnode];

    }

    /**

     * Get the list of contexts that contain user information for the specified user

     *

     * @param int $userid

     * @return contextlist

     */

    public static function get_contexts_for_userid(int $userid): contextlist {

        $contextlist = new contextlist();

        // Locate all contexts for reports the user has created, or reports they have created audience/schedules for.

        $sql = '

            SELECT r.contextid

              FROM {' . report::TABLE . '} r

             WHERE r.type = 0

               AND (r.usercreated = ?

                 OR r.usermodified = ?

                 OR r.id IN (

                    SELECT a.reportid

                      FROM {' . audience::TABLE . '} a

                     WHERE a.usercreated = ? OR a.usermodified = ?

                     UNION

                    SELECT s.reportid

                      FROM {' . schedule::TABLE . '} s

                     WHERE s.usercreated = ? OR s.usermodified = ?

                    )

                   )';

        return $contextlist->add_from_sql($sql, array_fill(0, 6, $userid));

    }

    /**

     * Get users in context

     *

     * @param userlist $userlist

     */

    public static function get_users_in_context(userlist $userlist): void {

        $select = 'r.type = :type AND r.contextid = :contextid';

        $params = ['type' => 0, 'contextid' => $userlist->get_context()->id];

        // Users who have created reports.

        $sql = 'SELECT r.usercreated, r.usermodified

                 FROM {' . report::TABLE . '} r

                WHERE ' . $select;

        $userlist->add_from_sql('usercreated', $sql, $params);

        $userlist->add_from_sql('usermodified', $sql, $params);

        // Users who have created audiences.

        $sql = 'SELECT a.usercreated, a.usermodified

                  FROM {' . audience::TABLE . '} a

                  JOIN {' . report::TABLE . '} r ON r.id = a.reportid

                WHERE ' . $select;

        $userlist->add_from_sql('usercreated', $sql, $params);

        $userlist->add_from_sql('usermodified', $sql, $params);

        // Users who have created schedules.

        $sql = 'SELECT s.usercreated, s.usermodified

                  FROM {' . schedule::TABLE . '} s

                  JOIN {' . report::TABLE . '} r ON r.id = s.reportid

                 WHERE ' . $select;

        $userlist->add_from_sql('usercreated', $sql, $params);

        $userlist->add_from_sql('usermodified', $sql, $params);

    }

    /**

     * Export all user data for the specified user in the specified contexts

     *

     * @param approved_contextlist $contextlist

     */

    public static function export_user_data(approved_contextlist $contextlist): void {

        if (empty($contextlist->count())) {

            return;

        }

        $user = $contextlist->get_user();

        // We need to get all reports that the user has created, or reports they have created audience/schedules for.

        $select = 'type = 0 AND (usercreated = ? OR usermodified = ? OR id IN (

            SELECT a.reportid

              FROM {' . audience::TABLE . '} a

             WHERE a.usercreated = ? OR a.usermodified = ?

             UNION

            SELECT s.reportid

              FROM {' . schedule::TABLE . '} s

             WHERE s.usercreated = ? OR s.usermodified = ?

        ))';

        $params = array_fill(0, 6, $user->id);

        foreach (report::get_records_select($select, $params) as $report) {

            $subcontext = static::get_export_subcontext($report);

            self::export_report($subcontext, $report);

            $select = 'reportid = ? AND (usercreated = ? OR usermodified = ?)';

            $params = [$report->get('id'), $user->id, $user->id];

            // Audiences.

            if ($audiences = audience::get_records_select($select, $params)) {

                static::export_audiences($report->get_context(), $subcontext, $audiences);

            }

            // Schedules.

            if ($schedules = schedule::get_records_select($select, $params)) {

                static::export_schedules($report->get_context(), $subcontext, $schedules);

            }

        }

    }

    /**

     * Delete data for all users in context

     *

     * @param context $context

     */

    public static function delete_data_for_all_users_in_context(context $context): void {

        // We don't perform any deletion of user data.

    }

    /**

     * Delete data for user

     *

     * @param approved_contextlist $contextlist

     */

    public static function delete_data_for_user(approved_contextlist $contextlist): void {

        // We don't perform any deletion of user data.

    }

    /**

     * Delete data for users

     *

     * @param approved_userlist $userlist

     */

    public static function delete_data_for_users(approved_userlist $userlist): void {

        // We don't perform any deletion of user data.

    }

    /**

     * Export given report in context

     *

     * @param array $subcontext

     * @param report $report

     */

    protected static function export_report(array $subcontext, report $report): void {

        // Show the source name, if it exists.

        $source = $report->get('source');

        if (manager::report_source_exists($source)) {

            $source = call_user_func([$source, 'get_name']);

        }

        $reportdata = (object) [

            'name' => $report->get_formatted_name(),

            'source' => $source,

            'conditiondata' => $report->get('conditiondata'),

            'settingsdata' => $report->get('settingsdata'),

            'uniquerows' => transform::yesno($report->get('uniquerows')),

            'usercreated' => transform::user($report->get('usercreated')),

            'usermodified' => transform::user($report->get('usermodified')),

            'timecreated' => transform::datetime($report->get('timecreated')),

            'timemodified' => transform::datetime($report->get('timemodified')),

        ];

        writer::with_context($report->get_context())->export_data($subcontext, $reportdata);

    }

    /**

     * Export given audiences in context

     *

     * @param context $context

     * @param array $subcontext

     * @param audience[] $audiences

     */

    protected static function export_audiences(context $context, array $subcontext, array $audiences): void {

        $audiencedata = array_map(static function(audience $audience) use ($context): stdClass {

            // Show the audience name, if it exists.

            $classname = $audience->get('classname');

            if (class_exists($classname)) {

                $classname = $classname::instance()->get_name();

            }

            return (object) [

                'classname' => $classname,

                'heading' => $audience->get_formatted_heading($context),

                'configdata' => $audience->get('configdata'),

                'usercreated' => transform::user($audience->get('usercreated')),

                'usermodified' => transform::user($audience->get('usermodified')),

                'timecreated' => transform::datetime($audience->get('timecreated')),

                'timemodified' => transform::datetime($audience->get('timemodified')),

            ];

        }, $audiences);

        writer::with_context($context)->export_related_data($subcontext, 'audiences', (object) ['data' => $audiencedata]);

    }

    /**

     * Export given schedules in context

     *

     * @param context $context

     * @param array $subcontext

     * @param schedule[] $schedules

     */

    protected static function export_schedules(context $context, array $subcontext, array $schedules): void {

        $formatoptions = schedule_helper::get_format_options();

        $recurrenceoptions = schedule_helper::get_recurrence_options();

        $viewasoptions = schedule_helper::get_viewas_options();

        $reportemptyoptions = schedule_helper::get_report_empty_options();

        $scheduledata = array_map(static function(schedule $schedule) use (

                $context, $formatoptions, $recurrenceoptions, $viewasoptions, $reportemptyoptions): stdClass {

            // The "User view as" property will be either creator, recipient or a specific userid.

            $userviewas = $schedule->get('userviewas');

            return (object) [

                'name' => $schedule->get_formatted_name($context),

                'enabled' => transform::yesno($schedule->get('enabled')),

                'format' => $formatoptions[$schedule->get('format')],

                'timescheduled' => transform::datetime($schedule->get('timescheduled')),

                'recurrence' => $recurrenceoptions[$schedule->get('recurrence')],

                'userviewas' => $viewasoptions[$userviewas] ?? transform::user($userviewas),

                'audiences' => $schedule->get('audiences'),

                'subject' => $schedule->get('subject'),

                'message' => format_text($schedule->get('message'), $schedule->get('messageformat'), ['context' => $context]),

                'reportempty' => $reportemptyoptions[$schedule->get('reportempty')],

                'usercreated' => transform::user($schedule->get('usercreated')),

                'usermodified' => transform::user($schedule->get('usermodified')),

                'timecreated' => transform::datetime($schedule->get('timecreated')),

                'timemodified' => transform::datetime($schedule->get('timemodified')),

            ];

        }, $schedules);

        writer::with_context($context)->export_related_data($subcontext, 'schedules', (object) ['data' => $scheduledata]);

    }

}