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<?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/>. defined('MOODLE_INTERNAL') \|\| die(); // Include all the needed stuff. global $CFG; require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php'); require_once($CFG->dirroot . '/backup/util/includes/restore_includes.php'); /** * Unit tests for how backup and restore handles role-related things. * * @package core_backup * @copyright 2021 The Open University * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later / class roles_backup_restore_test extends advanced_testcase { /* * Create a course where the (non-editing) Teacher role is overridden * to have 'moodle/user:loginas' and 'moodle/site:accessallgroups'. * * @return stdClass the new course. / protected function create_course_with_role_overrides(): stdClass { $generator = $this->getDataGenerator(); $course = $generator->create_course(); $teacher = $generator->create_user(); $context = context_course::instance($course->id); $generator->enrol_user($teacher->id, $course->id, 'teacher'); $editingteacherrole = $this->get_role('teacher'); role_change_permission($editingteacherrole->id, $context, 'moodle/user:loginas', CAP_ALLOW); role_change_permission($editingteacherrole->id, $context, 'moodle/site:accessallgroups', CAP_ALLOW); return $course; } /* * Get the role id from a shortname. * * @param string $shortname the role shortname. * @return stdClass the role from the DB. / protected function get_role(string $shortname): stdClass { global $DB; return $DB->get_record('role', ['shortname' => $shortname]); } /* * Get an array capability => CAP_... constant for all the orverrides set for a given role on a given context. * * @param string $shortname role shortname. * @param context $context context. * @return array the overrides set here. / protected function get_overrides_for_role_on_context(string $shortname, context $context): array { $overridedata = get_capabilities_from_role_on_context($this->get_role($shortname), $context); $overrides = []; foreach ($overridedata as $override) { $overrides[$override->capability] = $override->permission; } return $overrides; } /* * Makes a backup of the course. * * @param stdClass $course The course object. * @return string Unique identifier for this backup. / protected function backup_course(\stdClass $course): string { global $CFG, $USER; // Turn off file logging, otherwise it can't delete the file (Windows). $CFG->backup_file_logger_level = backup::LOG_NONE; // Do backup with default settings. MODE_IMPORT means it will just // create the directory and not zip it. $bc = new \backup_controller(backup::TYPE_1COURSE, $course->id, backup::FORMAT_MOODLE, backup::INTERACTIVE_NO, backup::MODE_IMPORT, $USER->id); $backupid = $bc->get_backupid(); $bc->execute_plan(); $bc->destroy(); return $backupid; } /* * Restores a backup that has been made earlier. * * @param string $backupid The unique identifier of the backup. * @param string $asroleshortname Which role in the new cousre the restorer should have. * @return int The new course id. */ protected function restore_adding_to_course(string $backupid, string $asroleshortname): int { global $CFG, $USER; // Create course to restore into, and a user to do the restore. $generator = $this->getDataGenerator(); $course = $generator->create_course(); $restorer = $generator->create_user(); $generator->enrol_user($restorer->id, $course->id, $asroleshortname); $this->setUser($restorer); // Turn off file logging, otherwise it can't delete the file (Windows). $CFG->backup_file_logger_level = backup::LOG_NONE; // Do restore to new course with default settings. $rc = new \restore_controller($backupid, $course->id, backup::INTERACTIVE_NO, backup::MODE_GENERAL, $USER->id, backup::TARGET_CURRENT_ADDING); $precheck = $rc->execute_precheck(); $this->assertTrue($precheck); $rc->get_plan()->get_setting('role_assignments')->set_value(true); $rc->get_plan()->get_setting('permissions')->set_value(true); $rc->execute_plan(); $rc->destroy(); return $course->id; } public function test_restore_role_overrides_as_manager(): void { $this->resetAfterTest(); $this->setAdminUser(); // Create a course and back it up. $course = $this->create_course_with_role_overrides(); $backupid = $this->backup_course($course); // When manager restores, both role overrides should be restored. $newcourseid = $this->restore_adding_to_course($backupid, 'manager'); // Verify. $overrides = $this->get_overrides_for_role_on_context('teacher', context_course::instance($newcourseid)); $this->assertArrayHasKey('moodle/user:loginas', $overrides); $this->assertEquals(CAP_ALLOW, $overrides['moodle/user:loginas']); $this->assertArrayHasKey('moodle/site:accessallgroups', $overrides); $this->assertEquals(CAP_ALLOW, $overrides['moodle/site:accessallgroups']); } public function test_restore_role_overrides_as_teacher(): void { $this->resetAfterTest(); $this->setAdminUser(); // Create a course and back it up. $course = $this->create_course_with_role_overrides(); $backupid = $this->backup_course($course); // When teacher restores, only the safe override should be restored. $newcourseid = $this->restore_adding_to_course($backupid, 'editingteacher'); // Verify. $overrides = $this->get_overrides_for_role_on_context('teacher', context_course::instance($newcourseid)); $this->assertArrayNotHasKey('moodle/user:loginas', $overrides); $this->assertArrayHasKey('moodle/site:accessallgroups', $overrides); $this->assertEquals(CAP_ALLOW, $overrides['moodle/site:accessallgroups']); } }

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