ValidateHostnameTest.php

<?php

namespace Drupal\Tests\Core\DrupalKernel;

use Drupal\Core\DrupalKernel;
use Drupal\Tests\UnitTestCase;
use Symfony\Component\HttpFoundation\Request;

/**
 * @coversDefaultClass \Drupal\Core\DrupalKernel
 * @group DrupalKernel
 */
class ValidateHostnameTest extends UnitTestCase {
    
    /**
     * @covers ::validateHostname
     * @dataProvider providerTestValidateHostname
     */
    public function testValidateHostname($hostname, $message, $expected = FALSE) {
        $server = [
            'HTTP_HOST' => $hostname,
        ];
        $request = new Request([], [], [], [], [], $server);
        $validated_hostname = DrupalKernel::validateHostname($request);
        $this->assertSame($expected, $validated_hostname, $message);
    }
    
    /**
     * Provides test data for testValidateHostname().
     */
    public function providerTestValidateHostname() {
        $data = [];
        // Verifies that DrupalKernel::validateHostname() prevents invalid
        // characters per RFC 952/2181.
        $data[] = [
            'security/.drupal.org:80',
            'HTTP_HOST with / is invalid',
        ];
        $data[] = [
            'security/.drupal.org:80',
            'HTTP_HOST with / is invalid',
        ];
        $data[] = [
            'security\\.drupal.org:80',
            'HTTP_HOST with \\ is invalid',
        ];
        $data[] = [
            'security<.drupal.org:80',
            'HTTP_HOST with &lt; is invalid',
        ];
        $data[] = [
            'security..drupal.org:80',
            'HTTP_HOST with .. is invalid',
        ];
        // Verifies hostnames that are too long, or have too many parts are
        // invalid.
        $data[] = [
            str_repeat('x', 1000) . '.security.drupal.org:80',
            'HTTP_HOST with more than 1000 characters is invalid.',
        ];
        $data[] = [
            str_repeat('x.', 100) . 'security.drupal.org:80',
            'HTTP_HOST with more than 100 subdomains is invalid.',
        ];
        $data[] = [
            'security.drupal.org:80' . str_repeat(':x', 100),
            'HTTP_HOST with more than 100 port separators is invalid.',
        ];
        // Verifies that a valid hostname is allowed.
        $data[] = [
            'security.drupal.org:80',
            'Properly formed HTTP_HOST is valid.',
            TRUE,
        ];
        // Verifies that using valid IP address for the hostname is allowed.
        $data[] = [
            '72.21.91.99:80',
            'Properly formed HTTP_HOST with IPv4 address valid.',
            TRUE,
        ];
        $data[] = [
            '2607:f8b0:4004:803::1002:80',
            'Properly formed HTTP_HOST with IPv6 address valid.',
            TRUE,
        ];
        // Verifies that the IPv6 loopback address is valid.
        $data[] = [
            '[::1]:80',
            'HTTP_HOST containing IPv6 loopback is valid.',
            TRUE,
        ];
        return $data;
    }

}