comparison core/modules/system/src/Tests/Common/UrlTest.php @ 0:4c8ae668cc8c

Initial import (non-working)

+<?php
+
+namespace Drupal\system\Tests\Common;
+
+use Drupal\Component\Utility\UrlHelper;
+use Drupal\Core\Cache\Cache;
+use Drupal\Core\Language\Language;
+use Drupal\Core\Render\RenderContext;
+use Drupal\Core\Url;
+use Drupal\simpletest\WebTestBase;
+
+/**
+ * Confirm that \Drupal\Core\Url,
+ * \Drupal\Component\Utility\UrlHelper::filterQueryParameters(),
+ * \Drupal\Component\Utility\UrlHelper::buildQuery(), and
+ * \Drupal\Core\Utility\LinkGeneratorInterface::generate()
+ * work correctly with various input.
+ *
+ * @group Common
+ */
+class UrlTest extends WebTestBase {
+
+  public static $modules = ['common_test', 'url_alter_test'];
+
+  /**
+   * Confirms that invalid URLs are filtered in link generating functions.
+   */
+  public function testLinkXSS() {
+    // Test \Drupal::l().
+    $text = $this->randomMachineName();
+    $path = "<SCRIPT>alert('XSS')</SCRIPT>";
+    $encoded_path = "3CSCRIPT%3Ealert%28%27XSS%27%29%3C/SCRIPT%3E";
+
+    $link = \Drupal::l($text, Url::fromUserInput('/' . $path));
+    $this->assertTrue(strpos($link, $encoded_path) !== FALSE && strpos($link, $path) === FALSE, format_string('XSS attack @path was filtered by \Drupal\Core\Utility\LinkGeneratorInterface::generate().', ['@path' => $path]));
+
+    // Test \Drupal\Core\Url.
+    $link = Url::fromUri('base:' . $path)->toString();
+    $this->assertTrue(strpos($link, $encoded_path) !== FALSE && strpos($link, $path) === FALSE, format_string('XSS attack @path was filtered by #theme', ['@path' => $path]));
+  }
+
+  /**
+   * Tests that #type=link bubbles outbound route/path processors' metadata.
+   */
+  public function testLinkBubbleableMetadata() {
+    $cases = [
+      ['Regular link', 'internal:/user', [], ['contexts' => [], 'tags' => [], 'max-age' => Cache::PERMANENT], []],
+      ['Regular link, absolute', 'internal:/user', ['absolute' => TRUE], ['contexts' => ['url.site'], 'tags' => [], 'max-age' => Cache::PERMANENT], []],
+      ['Route processor link', 'route:system.run_cron', [], ['contexts' => ['session'], 'tags' => [], 'max-age' => Cache::PERMANENT], ['placeholders' => []]],
+      ['Route processor link, absolute', 'route:system.run_cron', ['absolute' => TRUE], ['contexts' => ['url.site', 'session'], 'tags' => [], 'max-age' => Cache::PERMANENT], ['placeholders' => []]],
+      ['Path processor link', 'internal:/user/1', [], ['contexts' => [], 'tags' => ['user:1'], 'max-age' => Cache::PERMANENT], []],
+      ['Path processor link, absolute', 'internal:/user/1', ['absolute' => TRUE], ['contexts' => ['url.site'], 'tags' => ['user:1'], 'max-age' => Cache::PERMANENT], []],
+    ];
+
+    foreach ($cases as $case) {
+      list($title, $uri, $options, $expected_cacheability, $expected_attachments) = $case;
+      $expected_cacheability['contexts'] = Cache::mergeContexts($expected_cacheability['contexts'], ['languages:language_interface', 'theme', 'user.permissions']);
+      $link = [
+        '#type' => 'link',
+        '#title' => $title,
+        '#options' => $options,
+        '#url' => Url::fromUri($uri),
+      ];
+      \Drupal::service('renderer')->renderRoot($link);
+      $this->pass($title);
+      $this->assertEqual($expected_cacheability, $link['#cache']);
+      $this->assertEqual($expected_attachments, $link['#attached']);
+    }
+  }
+
+  /**
+   * Tests that default and custom attributes are handled correctly on links.
+   */
+  public function testLinkAttributes() {
+    /** @var \Drupal\Core\Render\RendererInterface $renderer */
+    $renderer = $this->container->get('renderer');
+
+    // Test that hreflang is added when a link has a known language.
+    $language = new Language(['id' => 'fr', 'name' => 'French']);
+    $hreflang_link = [
+      '#type' => 'link',
+      '#options' => [
+        'language' => $language,
+      ],
+      '#url' => Url::fromUri('https://www.drupal.org'),
+      '#title' => 'bar',
+    ];
+    $langcode = $language->getId();
+
+    // Test that the default hreflang handling for links does not override a
+    // hreflang attribute explicitly set in the render array.
+    $hreflang_override_link = $hreflang_link;
+    $hreflang_override_link['#options']['attributes']['hreflang'] = 'foo';
+
+    $rendered = $renderer->renderRoot($hreflang_link);
+    $this->assertTrue($this->hasAttribute('hreflang', $rendered, $langcode), format_string('hreflang attribute with value @langcode is present on a rendered link when langcode is provided in the render array.', ['@langcode' => $langcode]));
+
+    $rendered = $renderer->renderRoot($hreflang_override_link);
+    $this->assertTrue($this->hasAttribute('hreflang', $rendered, 'foo'), format_string('hreflang attribute with value @hreflang is present on a rendered link when @hreflang is provided in the render array.', ['@hreflang' => 'foo']));
+
+    // Test the active class in links produced by
+    // \Drupal\Core\Utility\LinkGeneratorInterface::generate() and #type 'link'.
+    $options_no_query = [];
+    $options_query = [
+      'query' => [
+        'foo' => 'bar',
+        'one' => 'two',
+      ],
+    ];
+    $options_query_reverse = [
+      'query' => [
+        'one' => 'two',
+        'foo' => 'bar',
+      ],
+    ];
+
+    // Test #type link.
+    $path = 'common-test/type-link-active-class';
+
+    $this->drupalGet($path, $options_no_query);
+    $links = $this->xpath('//a[@href = :href and contains(@class, :class)]', [':href' => Url::fromRoute('common_test.l_active_class', [], $options_no_query)->toString(), ':class' => 'is-active']);
+    $this->assertTrue(isset($links[0]), 'A link generated by the link generator to the current page is marked active.');
+
+    $links = $this->xpath('//a[@href = :href and not(contains(@class, :class))]', [':href' => Url::fromRoute('common_test.l_active_class', [], $options_query)->toString(), ':class' => 'is-active']);
+    $this->assertTrue(isset($links[0]), 'A link generated by the link generator to the current page with a query string when the current page has no query string is not marked active.');
+
+    $this->drupalGet($path, $options_query);
+    $links = $this->xpath('//a[@href = :href and contains(@class, :class)]', [':href' => Url::fromRoute('common_test.l_active_class', [], $options_query)->toString(), ':class' => 'is-active']);
+    $this->assertTrue(isset($links[0]), 'A link generated by the link generator to the current page with a query string that matches the current query string is marked active.');
+
+    $links = $this->xpath('//a[@href = :href and contains(@class, :class)]', [':href' => Url::fromRoute('common_test.l_active_class', [], $options_query_reverse)->toString(), ':class' => 'is-active']);
+    $this->assertTrue(isset($links[0]), 'A link generated by the link generator to the current page with a query string that has matching parameters to the current query string but in a different order is marked active.');
+
+    $links = $this->xpath('//a[@href = :href and not(contains(@class, :class))]', [':href' => Url::fromRoute('common_test.l_active_class', [], $options_no_query)->toString(), ':class' => 'is-active']);
+    $this->assertTrue(isset($links[0]), 'A link generated by the link generator to the current page without a query string when the current page has a query string is not marked active.');
+
+    // Test adding a custom class in links produced by
+    // \Drupal\Core\Utility\LinkGeneratorInterface::generate() and #type 'link'.
+    // Test the link generator.
+    $class_l = $this->randomMachineName();
+    $link_l = \Drupal::l($this->randomMachineName(), new Url('<current>', [], ['attributes' => ['class' => [$class_l]]]));
+    $this->assertTrue($this->hasAttribute('class', $link_l, $class_l), format_string('Custom class @class is present on link when requested by l()', ['@class' => $class_l]));
+
+    // Test #type.
+    $class_theme = $this->randomMachineName();
+    $type_link = [
+      '#type' => 'link',
+      '#title' => $this->randomMachineName(),
+      '#url' => Url::fromRoute('<current>'),
+      '#options' => [
+        'attributes' => [
+          'class' => [$class_theme],
+        ],
+      ],
+    ];
+    $link_theme = $renderer->renderRoot($type_link);
+    $this->assertTrue($this->hasAttribute('class', $link_theme, $class_theme), format_string('Custom class @class is present on link when requested by #type', ['@class' => $class_theme]));
+  }
+
+  /**
+   * Tests that link functions support render arrays as 'text'.
+   */
+  public function testLinkRenderArrayText() {
+    /** @var \Drupal\Core\Render\RendererInterface $renderer */
+    $renderer = $this->container->get('renderer');
+
+    // Build a link with the link generator for reference.
+    $l = \Drupal::l('foo', Url::fromUri('https://www.drupal.org'));
+
+    // Test a renderable array passed to the link generator.
+    $renderer->executeInRenderContext(new RenderContext(), function () use ($renderer, $l) {
+      $renderable_text = ['#markup' => 'foo'];
+      $l_renderable_text = \Drupal::l($renderable_text, Url::fromUri('https://www.drupal.org'));
+      $this->assertEqual($l_renderable_text, $l);
+    });
+
+    // Test a themed link with plain text 'text'.
+    $type_link_plain_array = [
+      '#type' => 'link',
+      '#title' => 'foo',
+      '#url' => Url::fromUri('https://www.drupal.org'),
+    ];
+    $type_link_plain = $renderer->renderRoot($type_link_plain_array);
+    $this->assertEqual($type_link_plain, $l);
+
+    // Build a themed link with renderable 'text'.
+    $type_link_nested_array = [
+      '#type' => 'link',
+      '#title' => ['#markup' => 'foo'],
+      '#url' => Url::fromUri('https://www.drupal.org'),
+    ];
+    $type_link_nested = $renderer->renderRoot($type_link_nested_array);
+    $this->assertEqual($type_link_nested, $l);
+  }
+
+  /**
+   * Checks for class existence in link.
+   *
+   * @param $link
+   *   URL to search.
+   * @param $class
+   *   Element class to search for.
+   *
+   * @return bool
+   *   TRUE if the class is found, FALSE otherwise.
+   */
+  private function hasAttribute($attribute, $link, $class) {
+    return preg_match('|' . $attribute . '="([^\"\s]+\s+)*' . $class . '|', $link);
+  }
+
+  /**
+   * Tests UrlHelper::filterQueryParameters().
+   */
+  public function testDrupalGetQueryParameters() {
+    $original = [
+      'a' => 1,
+      'b' => [
+        'd' => 4,
+        'e' => [
+          'f' => 5,
+        ],
+      ],
+      'c' => 3,
+    ];
+
+    // First-level exclusion.
+    $result = $original;
+    unset($result['b']);
+    $this->assertEqual(UrlHelper::filterQueryParameters($original, ['b']), $result, "'b' was removed.");
+
+    // Second-level exclusion.
+    $result = $original;
+    unset($result['b']['d']);
+    $this->assertEqual(UrlHelper::filterQueryParameters($original, ['b[d]']), $result, "'b[d]' was removed.");
+
+    // Third-level exclusion.
+    $result = $original;
+    unset($result['b']['e']['f']);
+    $this->assertEqual(UrlHelper::filterQueryParameters($original, ['b[e][f]']), $result, "'b[e][f]' was removed.");
+
+    // Multiple exclusions.
+    $result = $original;
+    unset($result['a'], $result['b']['e'], $result['c']);
+    $this->assertEqual(UrlHelper::filterQueryParameters($original, ['a', 'b[e]', 'c']), $result, "'a', 'b[e]', 'c' were removed.");
+  }
+
+  /**
+   * Tests UrlHelper::parse().
+   */
+  public function testDrupalParseUrl() {
+    // Relative, absolute, and external URLs, without/with explicit script path,
+    // without/with Drupal path.
+    foreach (['', '/', 'https://www.drupal.org/'] as $absolute) {
+      foreach (['', 'index.php/'] as $script) {
+        foreach (['', 'foo/bar'] as $path) {
+          $url = $absolute . $script . $path . '?foo=bar&bar=baz&baz#foo';
+          $expected = [
+            'path' => $absolute . $script . $path,
+            'query' => ['foo' => 'bar', 'bar' => 'baz', 'baz' => ''],
+            'fragment' => 'foo',
+          ];
+          $this->assertEqual(UrlHelper::parse($url), $expected, 'URL parsed correctly.');
+        }
+      }
+    }
+
+    // Relative URL that is known to confuse parse_url().
+    $url = 'foo/bar:1';
+    $result = [
+      'path' => 'foo/bar:1',
+      'query' => [],
+      'fragment' => '',
+    ];
+    $this->assertEqual(UrlHelper::parse($url), $result, 'Relative URL parsed correctly.');
+
+    // Test that drupal can recognize an absolute URL. Used to prevent attack vectors.
+    $url = 'https://www.drupal.org/foo/bar?foo=bar&bar=baz&baz#foo';
+    $this->assertTrue(UrlHelper::isExternal($url), 'Correctly identified an external URL.');
+
+    // Test that UrlHelper::parse() does not allow spoofing a URL to force a malicious redirect.
+    $parts = UrlHelper::parse('forged:http://cwe.mitre.org/data/definitions/601.html');
+    $this->assertFalse(UrlHelper::isValid($parts['path'], TRUE), '\Drupal\Component\Utility\UrlHelper::isValid() correctly parsed a forged URL.');
+  }
+
+  /**
+   * Tests external URL handling.
+   */
+  public function testExternalUrls() {
+    $test_url = 'https://www.drupal.org/';
+
+    // Verify external URL can contain a fragment.
+    $url = $test_url . '#drupal';
+    $result = Url::fromUri($url)->toString();
+    $this->assertEqual($url, $result, 'External URL with fragment works without a fragment in $options.');
+
+    // Verify fragment can be overridden in an external URL.
+    $url = $test_url . '#drupal';
+    $fragment = $this->randomMachineName(10);
+    $result = Url::fromUri($url, ['fragment' => $fragment])->toString();
+    $this->assertEqual($test_url . '#' . $fragment, $result, 'External URL fragment is overridden with a custom fragment in $options.');
+
+    // Verify external URL can contain a query string.
+    $url = $test_url . '?drupal=awesome';
+    $result = Url::fromUri($url)->toString();
+    $this->assertEqual($url, $result);
+
+    // Verify external URL can be extended with a query string.
+    $url = $test_url;
+    $query = [$this->randomMachineName(5) => $this->randomMachineName(5)];
+    $result = Url::fromUri($url, ['query' => $query])->toString();
+    $this->assertEqual($url . '?' . http_build_query($query, '', '&'), $result, 'External URL can be extended with a query string in $options.');
+
+    // Verify query string can be extended in an external URL.
+    $url = $test_url . '?drupal=awesome';
+    $query = [$this->randomMachineName(5) => $this->randomMachineName(5)];
+    $result = Url::fromUri($url, ['query' => $query])->toString();
+    $this->assertEqual($url . '&' . http_build_query($query, '', '&'), $result);
+  }
+
+}