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Línea 29... Línea 29...
29 
 * @author     Andrew Madden <andrewmadden@catalyst-au.net>
 29 
 * @author     Andrew Madden <andrewmadden@catalyst-au.net>
30 
 * @copyright  2020 Catalyst IT
 30 
 * @copyright  2020 Catalyst IT
31 
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 31 
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
32 
 * @covers \quizaccess_seb
 32 
 * @covers \quizaccess_seb
33 
 */
 33 
 */
34 
class rule_test extends \advanced_testcase {
 34 
final class rule_test extends \advanced_testcase {
35 
    use \quizaccess_seb_test_helper_trait;
 35 
    use \quizaccess_seb_test_helper_trait;
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36 
 
 36 
 
37 
    /**
 37 
    /**
38 
     * Called before every test.
 38 
     * Called before every test.
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51 
        global $SESSION;
 51 
        global $SESSION;
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52 
 
 52 
 
53 
        if (!empty($this->quiz)) {
 53 
        if (!empty($this->quiz)) {
54 
            unset($SESSION->quizaccess_seb_access);
 54 
            unset($SESSION->quizaccess_seb_access);
- 
 
 55 
        }
55 
        }
 56 
        parent::tearDown();
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56 
    }
 57 
    }
57 
 
 58 
 
58 
    /**
 59 
    /**
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85 
    /**
 86 
    /**
86 
     * Provider to return valid form field data when saving settings.
 87 
     * Provider to return valid form field data when saving settings.
87 
     *
 88 
     *
88 
     * @return array
 89 
     * @return array
89 
     */
 90 
     */
90 
    public function valid_form_data_provider(): array {
 91 
    public static function valid_form_data_provider(): array {
91 
        return [
 92 
        return [
92 
            'valid seb_requiresafeexambrowser' => ['seb_requiresafeexambrowser', '0'],
 93 
            'valid seb_requiresafeexambrowser' => ['seb_requiresafeexambrowser', '0'],
93 
            'valid seb_linkquitseb0' => ['seb_linkquitseb', 'http://safeexambrowser.org/macosx'],
 94 
            'valid seb_linkquitseb0' => ['seb_linkquitseb', 'http://safeexambrowser.org/macosx'],
94 
            'valid seb_linkquitseb1' => ['seb_linkquitseb', 'safeexambrowser.org/macosx'],
 95 
            'valid seb_linkquitseb1' => ['seb_linkquitseb', 'safeexambrowser.org/macosx'],
95 
            'valid seb_linkquitseb2' => ['seb_linkquitseb', 'www.safeexambrowser.org/macosx'],
 96 
            'valid seb_linkquitseb2' => ['seb_linkquitseb', 'www.safeexambrowser.org/macosx'],
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101 
    /**
 102 
    /**
102 
     * Provider to return invalid form field data when saving settings.
 103 
     * Provider to return invalid form field data when saving settings.
103 
     *
 104 
     *
104 
     * @return array
 105 
     * @return array
105 
     */
 106 
     */
106 
    public function invalid_form_data_provider(): array {
 107 
    public static function invalid_form_data_provider(): array {
107 
        return [
 108 
        return [
108 
            'invalid seb_requiresafeexambrowser' => ['seb_requiresafeexambrowser', 'Uh oh!'],
 109 
            'invalid seb_requiresafeexambrowser' => ['seb_requiresafeexambrowser', 'Uh oh!'],
109 
            'invalid seb_linkquitseb0' => ['seb_linkquitseb', '\0'],
 110 
            'invalid seb_linkquitseb0' => ['seb_linkquitseb', '\0'],
110 
            'invalid seb_linkquitseb1' => ['seb_linkquitseb', 'invalid url'],
 111 
            'invalid seb_linkquitseb1' => ['seb_linkquitseb', 'invalid url'],
111 
            'invalid seb_linkquitseb2' => ['seb_linkquitseb', 'http]://safeexambrowser.org/macosx'],
 112 
            'invalid seb_linkquitseb2' => ['seb_linkquitseb', 'http]://safeexambrowser.org/macosx'],
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368 
        $this->setAdminUser();
 369 
        $this->setAdminUser();
369 
        $this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);
 370 
        $this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);
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370 
 
 371 
 
371 
        // Set up dummy request.
 372 
        // Set up dummy request.
- 
 
 373 
        $FULLME = 'https://example.com/moodle/mod/quiz/attempt.php?attemptid=123&page=4';
372 
        $FULLME = 'https://example.com/moodle/mod/quiz/attempt.php?attemptid=123&page=4';
 374 
        $_SERVER['HTTP_USER_AGENT'] = 'SEB';
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373 
        $_SERVER['HTTP_X_SAFEEXAMBROWSER_CONFIGKEYHASH'] = 'Broken config key';
 375 
        $_SERVER['HTTP_X_SAFEEXAMBROWSER_CONFIGKEYHASH'] = 'Broken config key';
374 
 
 376 
 
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375 
        $user = $this->getDataGenerator()->create_user();
 377 
        $user = $this->getDataGenerator()->create_user();
376 
        $this->setUser($user);
 378 
        $this->setUser($user);
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377 
 
 379 
 
- 
 
 380 
        $this->check_invalid_config_key();
- 
 
 381 
    }
- 
 
 382 
 
- 
 
 383 
    /**
- 
 
 384 
     * Test access prevented if config key is invalid when not using the Safe Exam Browser.
- 
 
 385 
     */
- 
 
 386 
    public function test_access_prevented_if_config_key_invalid_not_using_seb(): void {
- 
 
 387 
        global $FULLME;
- 
 
 388 
 
- 
 
 389 
        $this->setAdminUser();
- 
 
 390 
        $this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);
- 
 
 391 
 
- 
 
 392 
        // Set up dummy request.
- 
 
 393 
        $FULLME = 'https://example.com/moodle/mod/quiz/attempt.php?attemptid=123&page=4';
- 
 
 394 
        $_SERVER['HTTP_X_SAFEEXAMBROWSER_CONFIGKEYHASH'] = 'Broken config key';
- 
 
 395 
 
- 
 
 396 
        $user = $this->getDataGenerator()->create_user();
- 
 
 397 
        $this->setUser($user);
- 
 
 398 
 
- 
 
 399 
        $errormsg = $this->make_rule()->prevent_access();
- 
 
 400 
        $this->assertNotEmpty($errormsg);
- 
 
 401 
        $this->assertStringNotContainsString("The Safe Exam Browser keys could not be validated. "
378 
        $this->check_invalid_config_key();
 402 
            . "Check that you're using Safe Exam Browser with the correct configuration file.", $errormsg);
379 
    }
 403 
    }
380 
 
 404 
 
381 
    /**
 405 
    /**
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388 
        $this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);
 412 
        $this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);
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389 
 
 413 
 
390 
        // Set quiz setting to require seb and save BEK.
 414 
        // Set quiz setting to require seb and save BEK.
391 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
 415 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
392 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
 416 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
393 
        $xml = file_get_contents(__DIR__ . '/fixtures/unencrypted.seb');
 417 
        $xml = file_get_contents(self::get_fixture_path(__NAMESPACE__, 'unencrypted.seb'));
394 
        $this->create_module_test_file($xml, $this->quiz->cmid);
 418 
        $this->create_module_test_file($xml, $this->quiz->cmid);
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395 
        $quizsettings->save();
 419 
        $quizsettings->save();
396 
 
 420 
 
- 
 
 421 
        // Set up dummy request.
397 
        // Set up dummy request.
 422 
        $FULLME = 'https://example.com/moodle/mod/quiz/attempt.php?attemptid=123&page=4';
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398 
        $FULLME = 'https://example.com/moodle/mod/quiz/attempt.php?attemptid=123&page=4';
 423 
        $_SERVER['HTTP_USER_AGENT'] = 'SEB';
399 
        $_SERVER['HTTP_X_SAFEEXAMBROWSER_CONFIGKEYHASH'] = 'Broken config key';
 424 
        $_SERVER['HTTP_X_SAFEEXAMBROWSER_CONFIGKEYHASH'] = 'Broken config key';
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        $quizsettings->set('templateid', $this->create_template()->get('id'));
 444 
        $quizsettings->set('templateid', $this->create_template()->get('id'));
420 
        $quizsettings->save();
 445 
        $quizsettings->save();
Línea 421... Línea 446...
421 
 
 446 
 
422 
        // Set up dummy request.
 447 
        // Set up dummy request.
- 
 
 448 
        $FULLME = 'https://example.com/moodle/mod/quiz/attempt.php?attemptid=123&page=4';
423 
        $FULLME = 'https://example.com/moodle/mod/quiz/attempt.php?attemptid=123&page=4';
 449 
        $_SERVER['HTTP_USER_AGENT'] = 'SEB';
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424 
        $_SERVER['HTTP_X_SAFEEXAMBROWSER_CONFIGKEYHASH'] = 'Broken config key';
 450 
        $_SERVER['HTTP_X_SAFEEXAMBROWSER_CONFIGKEYHASH'] = 'Broken config key';
425 
 
 451 
 
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490 
        $this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);
 516 
        $this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);
Línea 491... Línea 517...
491 
 
 517 
 
492 
        // Set quiz setting to require seb and save BEK.
 518 
        // Set quiz setting to require seb and save BEK.
493 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
 519 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
494 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
 520 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
495 
        $xml = file_get_contents(__DIR__ . '/fixtures/unencrypted.seb');
 521 
        $xml = file_get_contents(self::get_fixture_path(__NAMESPACE__, 'unencrypted.seb'));
496 
        $this->create_module_test_file($xml, $this->quiz->cmid);
 522 
        $this->create_module_test_file($xml, $this->quiz->cmid);
Línea 497... Línea 523...
497 
        $quizsettings->save();
 523 
        $quizsettings->save();
498 
 
 524 
 
Línea 549... Línea 575...
549 
        // Set quiz setting to require seb and save BEK.
 575 
        // Set quiz setting to require seb and save BEK.
550 
        $browserexamkey = hash('sha256', 'testkey');
 576 
        $browserexamkey = hash('sha256', 'testkey');
551 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
 577 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
552 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
 578 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
553 
        $quizsettings->set('allowedbrowserexamkeys', $browserexamkey);
 579 
        $quizsettings->set('allowedbrowserexamkeys', $browserexamkey);
554 
        $xml = file_get_contents(__DIR__ . '/fixtures/unencrypted.seb');
 580 
        $xml = file_get_contents(self::get_fixture_path(__NAMESPACE__, 'unencrypted.seb'));
555 
        $this->create_module_test_file($xml, $this->quiz->cmid);
 581 
        $this->create_module_test_file($xml, $this->quiz->cmid);
556 
        $quizsettings->save();
 582 
        $quizsettings->save();
Línea 557... Línea 583...
557 
 
 583 
 
558 
        // Set up dummy request.
 584 
        // Set up dummy request.
Línea 667... Línea 693...
667 
        // Set quiz setting to require seb and save BEK.
 693 
        // Set quiz setting to require seb and save BEK.
668 
        $browserexamkey = hash('sha256', 'testkey');
 694 
        $browserexamkey = hash('sha256', 'testkey');
669 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
 695 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
670 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
 696 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
671 
        $quizsettings->set('allowedbrowserexamkeys', $browserexamkey);
 697 
        $quizsettings->set('allowedbrowserexamkeys', $browserexamkey);
672 
        $xml = file_get_contents(__DIR__ . '/fixtures/unencrypted.seb');
 698 
        $xml = file_get_contents(self::get_fixture_path(__NAMESPACE__, 'unencrypted.seb'));
673 
        $this->create_module_test_file($xml, $this->quiz->cmid);
 699 
        $this->create_module_test_file($xml, $this->quiz->cmid);
674 
        $quizsettings->save();
 700 
        $quizsettings->save();
Línea 675... Línea 701...
675 
 
 701 
 
676 
        // Set up dummy request.
 702 
        // Set up dummy request.
677 
        $FULLME = 'https://example.com/moodle/mod/quiz/attempt.php?attemptid=123&page=4';
 703 
        $FULLME = 'https://example.com/moodle/mod/quiz/attempt.php?attemptid=123&page=4';
- 
 
 704 
        $expectedhash = hash('sha256', $FULLME . $quizsettings->get_config_key());
678 
        $expectedhash = hash('sha256', $FULLME . $quizsettings->get_config_key());
 705 
        $_SERVER['HTTP_USER_AGENT'] = 'SEB';
Línea 679... Línea 706...
679 
        $_SERVER['HTTP_X_SAFEEXAMBROWSER_CONFIGKEYHASH'] = $expectedhash;
 706 
        $_SERVER['HTTP_X_SAFEEXAMBROWSER_CONFIGKEYHASH'] = $expectedhash;
680 
 
 707 
 
Línea 795... Línea 822...
795 
        $this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);
 822 
        $this->quiz = $this->create_test_quiz($this->course, settings_provider::USE_SEB_CONFIG_MANUALLY);
Línea 796... Línea 823...
796 
 
 823 
 
797 
        // Set quiz setting to require seb.
 824 
        // Set quiz setting to require seb.
798 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
 825 
        $quizsettings = seb_quiz_settings::get_record(['quizid' => $this->quiz->id]);
799 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG); // Doesn't check basic header.
 826 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG); // Doesn't check basic header.
800 
        $xml = file_get_contents(__DIR__ . '/fixtures/unencrypted.seb');
 827 
        $xml = file_get_contents(self::get_fixture_path(__NAMESPACE__, 'unencrypted.seb'));
801 
        $this->create_module_test_file($xml, $this->quiz->cmid);
 828 
        $this->create_module_test_file($xml, $this->quiz->cmid);
Línea 802... Línea 829...
802 
        $quizsettings->save();
 829 
        $quizsettings->save();
803 
 
 830 
 
Línea 1054... Línea 1081...
1054 
        $this->assertStringContainsString($this->get_seb_launch_link(), $method->invoke($this->make_rule()));
 1081 
        $this->assertStringContainsString($this->get_seb_launch_link(), $method->invoke($this->make_rule()));
1055 
        $this->assertStringContainsString($this->get_seb_config_download_link(), $method->invoke($this->make_rule()));
 1082 
        $this->assertStringContainsString($this->get_seb_config_download_link(), $method->invoke($this->make_rule()));
Línea 1056... Línea 1083...
1056 
 
 1083 
 
1057 
        // Should see links when using uploaded config.
 1084 
        // Should see links when using uploaded config.
1058 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
 1085 
        $quizsettings->set('requiresafeexambrowser', settings_provider::USE_SEB_UPLOAD_CONFIG);
1059 
        $xml = file_get_contents(__DIR__ . '/fixtures/unencrypted.seb');
 1086 
        $xml = file_get_contents(self::get_fixture_path(__NAMESPACE__, 'unencrypted.seb'));
1060 
        $this->create_module_test_file($xml, $this->quiz->cmid);
 1087 
        $this->create_module_test_file($xml, $this->quiz->cmid);
1061 
        $quizsettings->save();
 1088 
        $quizsettings->save();
1062 
        $this->assertStringContainsString($this->get_seb_launch_link(), $method->invoke($this->make_rule()));
 1089 
        $this->assertStringContainsString($this->get_seb_launch_link(), $method->invoke($this->make_rule()));