public function XssUnitTest::testBadProtocolStripping in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/KernelTests/Core/Common/XssUnitTest.php \Drupal\KernelTests\Core\Common\XssUnitTest::testBadProtocolStripping()

Checks that harmful protocols are stripped.

File

core/tests/Drupal/KernelTests/Core/Common/XssUnitTest.php, line 43

Class

XssUnitTest

Confirm that \Drupal\Component\Utility\Xss::filter() and check_url() work correctly, including invalid multi-byte sequences.

Namespace

Drupal\KernelTests\Core\Common

Code

public function testBadProtocolStripping() {

  // Ensure that check_url() strips out harmful protocols, and encodes for
  // HTML.
  // Ensure \Drupal\Component\Utility\UrlHelper::stripDangerousProtocols() can
  // be used to return a plain-text string stripped of harmful protocols.
  $url = 'javascript:http://www.example.com/?x=1&y=2';
  $expected_plain = 'http://www.example.com/?x=1&y=2';
  $expected_html = 'http://www.example.com/?x=1&y=2';
  $this
    ->assertSame($expected_html, UrlHelper::filterBadProtocol($url), '\\Drupal\\Component\\Utility\\UrlHelper::filterBadProtocol() filters a URL and encodes it for HTML.');
  $this
    ->assertSame($expected_plain, UrlHelper::stripDangerousProtocols($url), '\\Drupal\\Component\\Utility\\UrlHelper::stripDangerousProtocols() filters a URL and returns plain text.');
}