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Michael Kotlyar committed Sep 3, 2024
1 parent 3adbd48 commit 30fec19
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4 changes: 4 additions & 0 deletions mod/quiz/accessrule/seb/rule.php
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Expand Up @@ -581,6 +581,10 @@ public static function save_override_settings($override) {
$seboverride->timecreated = time();
$DB->insert_record('quizaccess_seb_override', $seboverride);
}

// Delete cache.
$quizid = $DB->get_field('quiz_overrides', 'quiz', ['id' => $override['overrideid']]);
seb_quiz_settings::delete_cache("$quizid-{$override['overrideid']}");
}

/**
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356 changes: 356 additions & 0 deletions mod/quiz/accessrule/seb/tests/override_test.php
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@@ -0,0 +1,356 @@
<?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/>.

namespace quizaccess_seb;

use mod_quiz\quiz_settings;
use quizaccess_seb\helper;

defined('MOODLE_INTERNAL') || die();

global $CFG;
require_once(__DIR__ . '/test_helper_trait.php');

/**
* Tests for Safe Exam Browser access rules
*
* @package quizaccess_seb
* @copyright 2024 Michael Kotlyar <[email protected]>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
final class override_test extends \advanced_testcase {

use \quizaccess_seb_test_helper_trait;

/**
* Test quiz override for SEB configs.
*/
public function test_override_over_no_seb(): void {
$this->resetAfterTest(true);

$this->course = $this->getDataGenerator()->create_course();
$this->user = $this->getDataGenerator()->create_user();
$overrideuser = $this->getDataGenerator()->create_user();

$this->getDataGenerator()->enrol_user($this->user->id, $this->course->id);
$this->getDataGenerator()->enrol_user($overrideuser->id, $this->course->id);

// Make a quiz.
$this->setAdminUser();
$this->quiz = $this->create_test_quiz($this->course);

// Check SEB settings for user (no SEB settings).
$this->setUser($this->user);
$raised = false;
try {
helper::get_seb_config_content($this->quiz->cmid);
} catch (\moodle_exception $e) {
$raised = true;
$this->assertMatchesRegularExpression(
'@' . 'No SEB config could be found for quiz with cmid: ' . $this->quiz->cmid . '@',
$e->getMessage()
);
}
$this->assertTrue($raised);

// Check SEB settings for overrideuser (no SEB settings).
$this->setUser($overrideuser);
$raised = false;
try {
helper::get_seb_config_content($this->quiz->cmid);
} catch (\moodle_exception $e) {
$raised = true;
$this->assertMatchesRegularExpression(
'@' . 'No SEB config could be found for quiz with cmid: ' . $this->quiz->cmid . '@',
$e->getMessage()
);
}
$this->assertTrue($raised);

// Create an override for overrideuser.
$this->setAdminUser();
$this->save_override($overrideuser);

// Check SEB settings for user (still no SEB settings).
$this->setUser($this->user);
$raised = false;
try {
helper::get_seb_config_content($this->quiz->cmid);
} catch (\moodle_exception $e) {
$raised = true;
$this->assertMatchesRegularExpression(
'@' . 'No SEB config could be found for quiz with cmid: ' . $this->quiz->cmid . '@',
$e->getMessage()
);
}
$this->assertTrue($raised);
}

/**
* Test quiz override for SEB configs.
*
* The same test as test_override_over_no_seb, but repeating the retieval of the settings to test if any caching is interferring
* with getting the right settings.
*/
public function test_cached_override_over_no_seb(): void {
$this->resetAfterTest(true);

$this->course = $this->getDataGenerator()->create_course();
$this->user = $this->getDataGenerator()->create_user();
$overrideuser = $this->getDataGenerator()->create_user();

$this->getDataGenerator()->enrol_user($this->user->id, $this->course->id);
$this->getDataGenerator()->enrol_user($overrideuser->id, $this->course->id);

// Make a quiz.
$this->setAdminUser();
$this->quiz = $this->create_test_quiz($this->course);

// Check SEB settings for user (no SEB settings).
$this->setUser($this->user);
$raised = false;
try {
helper::get_seb_config_content($this->quiz->cmid);
} catch (\moodle_exception $e) {
$raised = true;
$this->assertMatchesRegularExpression(
'@' . 'No SEB config could be found for quiz with cmid: ' . $this->quiz->cmid . '@',
$e->getMessage()
);
}
$this->assertTrue($raised);

// Check SEB settings for overrideuser (no SEB settings).
$this->setUser($overrideuser);
$raised = false;
try {
helper::get_seb_config_content($this->quiz->cmid);
} catch (\moodle_exception $e) {
$raised = true;
$this->assertMatchesRegularExpression(
'@' . 'No SEB config could be found for quiz with cmid: ' . $this->quiz->cmid . '@',
$e->getMessage()
);
}
$this->assertTrue($raised);

// Create an override for overrideuser.
$this->setAdminUser();
$this->save_override($overrideuser);

// Check SEB settings for user (still no SEB settings).
$this->setUser($this->user);
$raised = false;
try {
helper::get_seb_config_content($this->quiz->cmid);
} catch (\moodle_exception $e) {
$raised = true;
$this->assertMatchesRegularExpression(
'@' . 'No SEB config could be found for quiz with cmid: ' . $this->quiz->cmid . '@',
$e->getMessage()
);
}
$this->assertTrue($raised);

// Check SEB settings for overrideuser.
$this->setUser($overrideuser);
$sebconfig = helper::get_seb_config_content($this->quiz->cmid);
$this->assertIsString($sebconfig);

// Cache should be set.

// Checking SEB configs again.
// Check SEB settings for user (still no SEB settings).
$this->setUser($this->user);
$raised = false;
try {
helper::get_seb_config_content($this->quiz->cmid);
} catch (\moodle_exception $e) {
$raised = true;
$this->assertMatchesRegularExpression(
'@' . 'No SEB config could be found for quiz with cmid: ' . $this->quiz->cmid . '@',
$e->getMessage()
);
}
$this->assertTrue($raised);

// Check SEB settings for overrideuser.
$this->setUser($overrideuser);
$sebconfig = helper::get_seb_config_content($this->quiz->cmid);
$this->assertIsString($sebconfig);
}

/**
* Test quiz override for SEB configs.
*/
public function test_override_settings_changed(): void {
$this->resetAfterTest(true);

$this->course = $this->getDataGenerator()->create_course();
$this->user = $this->getDataGenerator()->create_user();
$normaluser = $this->getDataGenerator()->create_user();

$this->getDataGenerator()->enrol_user($this->user->id, $this->course->id);
$this->getDataGenerator()->enrol_user($normaluser->id, $this->course->id);

// Make a quiz.
$this->setAdminUser();
$this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);

// Check SEB settings for user.
$this->setUser($this->user);
$sebconfig = seb_quiz_settings::get_by_quiz_id($this->quiz->id);

$this->assertEquals(1, $sebconfig->get('requiresafeexambrowser'));
$this->assertEquals(1, $sebconfig->get('showsebtaskbar'));
$this->assertEquals(0, $sebconfig->get('showwificontrol'));
$this->assertEquals(1, $sebconfig->get('showreloadbutton'));
$this->assertEquals(1, $sebconfig->get('showtime'));
$this->assertEquals(1, $sebconfig->get('showkeyboardlayout'));
$this->assertEquals(1, $sebconfig->get('allowuserquitseb'));
$this->assertEquals('', $sebconfig->get('quitpassword'));
$this->assertEquals('', $sebconfig->get('linkquitseb'));
$this->assertEquals(1, $sebconfig->get('userconfirmquit'));
$this->assertEquals(0, $sebconfig->get('enableaudiocontrol'));
$this->assertEquals(0, $sebconfig->get('muteonstartup'));
$this->assertEquals(0, $sebconfig->get('allowspellchecking'));
$this->assertEquals(1, $sebconfig->get('allowreloadinexam'));
$this->assertEquals(0, $sebconfig->get('activateurlfiltering'));
$this->assertEquals(0, $sebconfig->get('filterembeddedcontent'));
$this->assertEquals('', $sebconfig->get('expressionsallowed'));
$this->assertEquals('', $sebconfig->get('regexallowed'));
$this->assertEquals('', $sebconfig->get('expressionsblocked'));
$this->assertEquals('', $sebconfig->get('regexblocked'));
$this->assertEquals(1, $sebconfig->get('showsebdownloadlink'));
$this->assertEquals([], $sebconfig->get('allowedbrowserexamkeys'));

// Test cache.
$quizconfigkey = \cache::make('quizaccess_seb', 'configkey')->get($this->quiz->id);
$this->assertEquals("dc355fc028396158b14d3f383bdc1388039f5749d4d8b15242b243998b4f230f", $quizconfigkey);

$loadedquizconfigkey = $sebconfig::get_config_key_by_quiz_id($this->quiz->id);
$this->assertEquals($loadedquizconfigkey, $quizconfigkey);

// Override.
$this->setAdminUser();
$overrideid = $this->save_override($this->user, [
'seb_requiresafeexambrowser' => 1,
'seb_showsebtaskbar' => 0,
'seb_showwificontrol' => 1,
'seb_showreloadbutton' => 0,
'seb_showtime' => 0,
'seb_showkeyboardlayout' => 0,
'seb_allowuserquitseb' => 0,
'seb_quitpassword' => 'test',
'seb_linkquitseb' => 'https://example.com/quit',
'seb_userconfirmquit' => 0,
'seb_enableaudiocontrol' => 1,
'seb_muteonstartup' => 1,
'seb_allowspellchecking' => 1,
'seb_allowreloadinexam' => 0,
'seb_activateurlfiltering' => 1,
'seb_filterembeddedcontent' => 1,
'seb_expressionsallowed' => 'test.com',
'seb_regexallowed' => '^allow$',
'seb_expressionsblocked' => 'bad.com',
'seb_regexblocked' => '^bad$',
'seb_showsebdownloadlink' => 0,
]);

// Test settings are overriden.
$this->setUser($this->user);
$sebconfig = seb_quiz_settings::get_by_quiz_id($this->quiz->id);

$this->assertEquals(1, $sebconfig->get('requiresafeexambrowser'));
$this->assertEquals(0, $sebconfig->get('showsebtaskbar'));
$this->assertEquals(1, $sebconfig->get('showwificontrol'));
$this->assertEquals(0, $sebconfig->get('showreloadbutton'));
$this->assertEquals(0, $sebconfig->get('showtime'));
$this->assertEquals(0, $sebconfig->get('showkeyboardlayout'));
$this->assertEquals(0, $sebconfig->get('allowuserquitseb'));
$this->assertEquals('test', $sebconfig->get('quitpassword'));
$this->assertEquals('https://example.com/quit', $sebconfig->get('linkquitseb'));
$this->assertEquals(0, $sebconfig->get('userconfirmquit'));
$this->assertEquals(1, $sebconfig->get('enableaudiocontrol'));
$this->assertEquals(1, $sebconfig->get('muteonstartup'));
$this->assertEquals(1, $sebconfig->get('allowspellchecking'));
$this->assertEquals(0, $sebconfig->get('allowreloadinexam'));
$this->assertEquals(1, $sebconfig->get('activateurlfiltering'));
$this->assertEquals(1, $sebconfig->get('filterembeddedcontent'));
$this->assertEquals('test.com', $sebconfig->get('expressionsallowed'));
$this->assertEquals('^allow$', $sebconfig->get('regexallowed'));
$this->assertEquals('bad.com', $sebconfig->get('expressionsblocked'));
$this->assertEquals('^bad$', $sebconfig->get('regexblocked'));
$this->assertEquals(0, $sebconfig->get('showsebdownloadlink'));
$this->assertEquals([], $sebconfig->get('allowedbrowserexamkeys'));

// Test override cache.
$configid = $sebconfig->get('id');
$cachekey = "{$this->quiz->id}-$configid";
$quizconfigkey = \cache::make('quizaccess_seb', 'configkey')->get($cachekey);
$this->assertEquals("dc355fc028396158b14d3f383bdc1388039f5749d4d8b15242b243998b4f230f", $quizconfigkey);

$loadedquizconfigkey = $sebconfig::get_config_key_by_quiz_id($this->quiz->id);
$this->assertEquals($loadedquizconfigkey, $quizconfigkey);

}

/**
* Create initial SEB settings data for quiz_override db table.
*
* @param bool|Array $settings Override settings with this array
* @return string
*/
private function save_override($user = false, $settings = false) {
$user = $user ?: $this->user;

$initialsettings = [
'seb_enabled' => '1',
'seb_requiresafeexambrowser' => '1',
'seb_showsebtaskbar' => '1',
'seb_showwificontrol' => '0',
'seb_showreloadbutton' => '1',
'seb_showtime' => '0',
'seb_showkeyboardlayout' => '1',
'seb_allowuserquitseb' => '1',
'seb_quitpassword' => 'test',
'seb_linkquitseb' => '',
'seb_userconfirmquit' => '1',
'seb_enableaudiocontrol' => '1',
'seb_muteonstartup' => '0',
'seb_allowspellchecking' => '0',
'seb_allowreloadinexam' => '1',
'seb_activateurlfiltering' => '1',
'seb_filterembeddedcontent' => '0',
'seb_expressionsallowed' => 'test.com',
'seb_regexallowed' => '',
'seb_expressionsblocked' => '',
'seb_regexblocked' => '',
'seb_showsebdownloadlink' => '1',
];

if (is_array($settings)) {
$initialsettings = array_merge($initialsettings, $settings);
}

$quizobj = quiz_settings::create($this->quiz->id);
$manager = $quizobj->get_override_manager();
return $manager->save_override([
'userid' => $user->id,
...$initialsettings,
]);
}
}
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