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),
    ]));
  }

}