FilterSecurityTest.php

<?php

/**
 * @file
 * Definition of Drupal\filter\Tests\FilterSecurityTest.
 */
namespace Drupal\filter\Tests;

use Drupal\Core\Language\Language;
use Drupal\simpletest\WebTestBase;

/**
 * Security tests for missing/vanished text formats or filters.
 */
class FilterSecurityTest extends WebTestBase {

  /**
   * Modules to enable.
   *
   * @var array
   */
  public static $modules = array(
    'node',
    'php',
    'filter_test',
  );

  /**
   * A user with administrative permissions.
   *
   * @var object
   */
  protected $admin_user;
  public static function getInfo() {
    return array(
      'name' => 'Security',
      'description' => 'Test the behavior of check_markup() when a filter or text format vanishes, or when check_markup() is called in such a way that it is instructed to skip all filters of the "FILTER_TYPE_HTML_RESTRICTOR" type.',
      'group' => 'Filter',
    );
  }
  function setUp() {
    parent::setUp();

    // Create Basic page node type.
    $this
      ->drupalCreateContentType(array(
      'type' => 'page',
      'name' => 'Basic page',
    ));

    // Create Filtered HTML format.
    $filtered_html_format = entity_create('filter_format', array(
      'format' => 'filtered_html',
      'name' => 'Filtered HTML',
      'filters' => array(
        // Note that the filter_html filter is of the type FILTER_TYPE_HTML_RESTRICTOR.
        'filter_html' => array(
          'status' => 1,
        ),
      ),
    ));
    $filtered_html_format
      ->save();
    $filtered_html_permission = filter_permission_name($filtered_html_format);
    user_role_grant_permissions(DRUPAL_ANONYMOUS_RID, array(
      $filtered_html_permission,
    ));
    $this->admin_user = $this
      ->drupalCreateUser(array(
      'administer modules',
      'administer filters',
      'administer site configuration',
    ));
    $this
      ->drupalLogin($this->admin_user);
  }

  /**
   * Tests removal of filtered content when an active filter is disabled.
   *
   * Tests that filtered content is emptied when an actively used filter module
   * is disabled.
   */
  function testDisableFilterModule() {

    // Create a new node.
    $node = $this
      ->drupalCreateNode(array(
      'promote' => 1,
    ));
    $body_raw = $node->body[Language::LANGCODE_NOT_SPECIFIED][0]['value'];
    $format_id = $node->body[Language::LANGCODE_NOT_SPECIFIED][0]['format'];
    $this
      ->drupalGet('node/' . $node->nid);
    $this
      ->assertText($body_raw, 'Node body found.');

    // Enable the filter_test_replace filter.
    $edit = array(
      'filters[filter_test_replace][status]' => 1,
    );
    $this
      ->drupalPost('admin/config/content/formats/' . $format_id, $edit, t('Save configuration'));

    // Verify that filter_test_replace filter replaced the content.
    $this
      ->drupalGet('node/' . $node->nid);
    $this
      ->assertNoText($body_raw, 'Node body not found.');
    $this
      ->assertText('Filter: Testing filter', 'Testing filter output found.');

    // Disable the text format entirely.
    $this
      ->drupalPost('admin/config/content/formats/' . $format_id . '/disable', array(), t('Disable'));

    // Verify that the content is empty, because the text format does not exist.
    $this
      ->drupalGet('node/' . $node->nid);
    $this
      ->assertNoText($body_raw, 'Node body not found.');
  }

  /**
   * Tests that security filters are enforced even when marked to be skipped.
   */
  function testSkipSecurityFilters() {
    $text = "Text with some disallowed tags: <script />, <em><object>unicorn</object></em>, <i><table></i>.";
    $expected_filtered_text = "Text with some disallowed tags: , <em>unicorn</em>, .";
    $this
      ->assertEqual(check_markup($text, 'filtered_html', '', FALSE, array()), $expected_filtered_text, 'Expected filter result.');
    $this
      ->assertEqual(check_markup($text, 'filtered_html', '', FALSE, array(
      FILTER_TYPE_HTML_RESTRICTOR,
    )), $expected_filtered_text, 'Expected filter result, even when trying to disable filters of the FILTER_TYPE_HTML_RESTRICTOR type.');
  }

}