class HtaccessTest

class HtaccessTest extends KernelTestBase {
    
    /**
     * The public directory.
     *
     * @var string
     */
    protected $public;
    
    /**
     * The Htaccess class under test.
     *
     * @var \Drupal\Core\File\HtaccessWriterInterface
     */
    protected $htaccessWriter;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'system',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->public = Settings::get('file_public_path') . '/test/public';
        $this->htaccessWriter = $this->container
            ->get('file.htaccess_writer');
    }
    
    /**
     * @covers ::write
     */
    public function testHtaccessSave() {
        // Prepare test directories.
        $private = Settings::get('file_public_path') . '/test/private';
        $stream = 'public://test/stream';
        // Create public .htaccess file.
        mkdir($this->public, 0777, TRUE);
        $this->assertTrue($this->htaccessWriter
            ->write($this->public, FALSE));
        $content = file_get_contents($this->public . '/.htaccess');
        $this->assertStringContainsString("SetHandler Drupal_Security_Do_Not_Remove_See_SA_2006_006", $content);
        $this->assertStringNotContainsString("Require all denied", $content);
        $this->assertStringNotContainsString("Deny from all", $content);
        $this->assertStringContainsString("Options -Indexes -ExecCGI -Includes -MultiViews", $content);
        $this->assertStringContainsString("SetHandler Drupal_Security_Do_Not_Remove_See_SA_2013_003", $content);
        $this->assertFilePermissions($this->public . '/.htaccess', 0444);
        $this->assertTrue($this->htaccessWriter
            ->write($this->public, FALSE));
        // Create private .htaccess file.
        mkdir($private, 0777, TRUE);
        $this->assertTrue($this->htaccessWriter
            ->write($private));
        $content = file_get_contents($private . '/.htaccess');
        $this->assertStringContainsString("SetHandler Drupal_Security_Do_Not_Remove_See_SA_2006_006", $content);
        $this->assertStringContainsString("Require all denied", $content);
        $this->assertStringContainsString("Deny from all", $content);
        $this->assertStringContainsString("Options -Indexes -ExecCGI -Includes -MultiViews", $content);
        $this->assertStringContainsString("SetHandler Drupal_Security_Do_Not_Remove_See_SA_2013_003", $content);
        $this->assertFilePermissions($private . '/.htaccess', 0444);
        $this->assertTrue($this->htaccessWriter
            ->write($private));
        // Create an .htaccess file using a stream URI.
        mkdir($stream, 0777, TRUE);
        $this->assertTrue($this->htaccessWriter
            ->write($stream));
        $content = file_get_contents($stream . '/.htaccess');
        $this->assertStringContainsString("SetHandler Drupal_Security_Do_Not_Remove_See_SA_2006_006", $content);
        $this->assertStringContainsString("Require all denied", $content);
        $this->assertStringContainsString("Deny from all", $content);
        $this->assertStringContainsString("Options -Indexes -ExecCGI -Includes -MultiViews", $content);
        $this->assertStringContainsString("SetHandler Drupal_Security_Do_Not_Remove_See_SA_2013_003", $content);
        $this->assertFilePermissions($stream . '/.htaccess', 0444);
        $this->assertTrue($this->htaccessWriter
            ->write($stream));
    }
    
    /**
     * Asserts expected file permissions for a given file.
     *
     * @param string $uri
     *   The URI of the file to check.
     * @param int $expected
     *   The expected file permissions; e.g., 0444.
     *
     * @internal
     */
    protected function assertFilePermissions(string $uri, int $expected) : void {
        $actual = fileperms($uri) & 0777;
        $this->assertSame($actual, $expected, new FormattableMarkup('@uri file permissions @actual are identical to @expected.', [
            '@uri' => $uri,
            '@actual' => 0 . decoct($actual),
            '@expected' => 0 . decoct($expected),
        ]));
    }

}