NodeTitleXSSTest.php in Drupal 9

Namespace

Drupal\Tests\node\Functional

File

core/modules/node/tests/src/Functional/NodeTitleXSSTest.php

<?php

namespace Drupal\Tests\node\Functional;

use Drupal\Component\Utility\Html;

/**
 * Create a node with dangerous tags in its title and test that they are
 * escaped.
 *
 * @group node
 */
class NodeTitleXSSTest extends NodeTestBase {

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';

  /**
   * Tests XSS functionality with a node entity.
   */
  public function testNodeTitleXSS() {

    // Prepare a user to do the stuff.
    $web_user = $this
      ->drupalCreateUser([
      'create page content',
      'edit any page content',
    ]);
    $this
      ->drupalLogin($web_user);
    $xss = '<script>alert("xss")</script>';
    $title = $xss . $this
      ->randomMachineName();
    $edit = [];
    $edit['title[0][value]'] = $title;
    $this
      ->drupalGet('node/add/page');
    $this
      ->submitForm($edit, 'Preview');

    // Verify that harmful tags are escaped when previewing a node.
    $this
      ->assertSession()
      ->responseNotContains($xss);
    $settings = [
      'title' => $title,
    ];
    $node = $this
      ->drupalCreateNode($settings);
    $this
      ->drupalGet('node/' . $node
      ->id());

    // Titles should be escaped.
    $this
      ->assertSession()
      ->responseContains('<title>' . Html::escape($title) . ' | Drupal</title>');
    $this
      ->assertSession()
      ->responseNotContains($xss);
    $this
      ->drupalGet('node/' . $node
      ->id() . '/edit');
    $this
      ->assertSession()
      ->responseNotContains($xss);
  }

}

Classes

Name	Description
NodeTitleXSSTest	Create a node with dangerous tags in its title and test that they are escaped.