class PathAliasTest

class PathAliasTest extends PathTestBase {
    use WaitTerminateTestTrait;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'path',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // Create test user and log in.
        $web_user = $this->drupalCreateUser([
            'create page content',
            'edit own page content',
            'administer url aliases',
            'create url aliases',
            'access content overview',
        ]);
        $this->drupalLogin($web_user);
        // The \Drupal\path_alias\AliasWhitelist service performs cache clears after
        // Drupal has flushed the response to the client. We use
        // WaitTerminateTestTrait to wait for Drupal to do this before continuing.
        $this->setWaitForTerminate();
    }
    
    /**
     * Tests the path cache.
     */
    public function testPathCache() : void {
        // Create test node.
        $node1 = $this->drupalCreateNode();
        // Create alias.
        $edit = [];
        $edit['path[0][value]'] = '/node/' . $node1->id();
        $edit['alias[0][value]'] = '/' . $this->randomMachineName(8);
        $this->drupalGet('admin/config/search/path/add');
        $this->submitForm($edit, 'Save');
        // Check the path alias whitelist cache.
        $whitelist = \Drupal::cache('bootstrap')->get('path_alias_whitelist');
        $this->assertTrue($whitelist->data['node']);
        $this->assertFalse($whitelist->data['admin']);
        // Visit the system path for the node and confirm a cache entry is
        // created.
        \Drupal::cache('data')->deleteAll();
        // Make sure the path is not converted to the alias.
        $this->drupalGet(trim($edit['path[0][value]'], '/'), [
            'alias' => TRUE,
        ]);
        $this->assertNotEmpty(\Drupal::cache('data')->get('preload-paths:' . $edit['path[0][value]']), 'Cache entry was created.');
        // Visit the alias for the node and confirm a cache entry is created.
        \Drupal::cache('data')->deleteAll();
        // @todo Remove this once https://www.drupal.org/node/2480077 lands.
        Cache::invalidateTags([
            'rendered',
        ]);
        $this->drupalGet(trim($edit['alias[0][value]'], '/'));
        $this->assertNotEmpty(\Drupal::cache('data')->get('preload-paths:' . $edit['path[0][value]']), 'Cache entry was created.');
    }
    
    /**
     * Tests alias functionality through the admin interfaces.
     */
    public function testAdminAlias() : void {
        // Create test node.
        $node1 = $this->drupalCreateNode();
        // Create alias.
        $edit = [];
        $edit['path[0][value]'] = '/node/' . $node1->id();
        $edit['alias[0][value]'] = '/' . $this->getRandomGenerator()
            ->word(8);
        $this->drupalGet('admin/config/search/path/add');
        $this->submitForm($edit, 'Save');
        // Confirm that the alias works.
        $this->drupalGet($edit['alias[0][value]']);
        $this->assertSession()
            ->pageTextContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(200);
        // Confirm that the alias works in a case-insensitive way.
        $this->assertTrue(ctype_lower(ltrim($edit['alias[0][value]'], '/')));
        $this->drupalGet($edit['alias[0][value]']);
        // Lower case.
        $this->assertSession()
            ->pageTextContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->drupalGet(mb_strtoupper($edit['alias[0][value]']));
        // Upper case.
        $this->assertSession()
            ->pageTextContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(200);
        // Change alias to one containing "exotic" characters.
        $pid = $this->getPID($edit['alias[0][value]']);
        $previous = $edit['alias[0][value]'];
        // Lower-case letters.
        $edit['alias[0][value]'] = '/alias' . "- ._~!\$'\"()*@[]?&+%#,;=:" . "%23%25%26%2B%2F%3F" . "中國書۞";
        $connection = Database::getConnection();
        if ($connection->databaseType() != 'sqlite') {
            // When using LIKE for case-insensitivity, the SQLite driver is
            // currently unable to find the upper-case versions of non-ASCII
            // characters.
            // @todo fix this in https://www.drupal.org/node/2607432
            // cSpell:disable-next-line
            $edit['alias[0][value]'] .= "ïвβéø";
        }
        $this->drupalGet('admin/config/search/path/edit/' . $pid);
        $this->submitForm($edit, 'Save');
        // Confirm that the alias works.
        $this->drupalGet(mb_strtoupper($edit['alias[0][value]']));
        $this->assertSession()
            ->pageTextContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->container
            ->get('path_alias.manager')
            ->cacheClear();
        // Confirm that previous alias no longer works.
        $this->drupalGet($previous);
        $this->assertSession()
            ->pageTextNotContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(404);
        // Create second test node.
        $node2 = $this->drupalCreateNode();
        // Set alias to second test node.
        $edit['path[0][value]'] = '/node/' . $node2->id();
        // Leave $edit['alias'] the same
        $this->drupalGet('admin/config/search/path/add');
        $this->submitForm($edit, 'Save');
        // Confirm no duplicate was created.
        $this->assertSession()
            ->statusMessageContains("The alias {$edit['alias[0][value]']} is already in use in this language.", 'error');
        $edit_upper = $edit;
        $edit_upper['alias[0][value]'] = mb_strtoupper($edit['alias[0][value]']);
        $this->drupalGet('admin/config/search/path/add');
        $this->submitForm($edit_upper, 'Save');
        $this->assertSession()
            ->statusMessageContains("The alias {$edit_upper['alias[0][value]']} could not be added because it is already in use in this language with different capitalization: {$edit['alias[0][value]']}.", 'error');
        // Delete alias.
        $this->drupalGet('admin/config/search/path/edit/' . $pid);
        $this->clickLink('Delete');
        $this->assertSession()
            ->pageTextContains("Are you sure you want to delete the URL alias {$edit['alias[0][value]']}?");
        $this->submitForm([], 'Delete');
        // Confirm that the alias no longer works.
        $this->drupalGet($edit['alias[0][value]']);
        $this->assertSession()
            ->pageTextNotContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(404);
        // Create a really long alias.
        $edit = [];
        $edit['path[0][value]'] = '/node/' . $node1->id();
        $alias = '/' . $this->randomMachineName(128);
        $edit['alias[0][value]'] = $alias;
        $this->drupalGet('admin/config/search/path/add');
        $this->submitForm($edit, 'Save');
        // The alias will always be found.
        $this->assertSession()
            ->pageTextContains($alias);
        // Create third test node.
        $node3 = $this->drupalCreateNode();
        // Create absolute path alias.
        $edit = [];
        $edit['path[0][value]'] = '/node/' . $node3->id();
        $node3_alias = '/' . $this->randomMachineName(8);
        $edit['alias[0][value]'] = $node3_alias;
        $this->drupalGet('admin/config/search/path/add');
        $this->submitForm($edit, 'Save');
        // Create fourth test node.
        $node4 = $this->drupalCreateNode();
        // Create alias with trailing slash.
        $edit = [];
        $edit['path[0][value]'] = '/node/' . $node4->id();
        $node4_alias = '/' . $this->randomMachineName(8);
        $edit['alias[0][value]'] = $node4_alias . '/';
        $this->drupalGet('admin/config/search/path/add');
        $this->submitForm($edit, 'Save');
        // Confirm that the alias with trailing slash is not found.
        $this->assertSession()
            ->pageTextNotContains($edit['alias[0][value]']);
        // The alias without trailing flash is found.
        $this->assertSession()
            ->pageTextContains(trim($edit['alias[0][value]'], '/'));
        // Update an existing alias to point to a different source.
        $pid = $this->getPID($node4_alias);
        $edit = [];
        $edit['alias[0][value]'] = $node4_alias;
        $edit['path[0][value]'] = '/node/' . $node2->id();
        $this->drupalGet('admin/config/search/path/edit/' . $pid);
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->statusMessageContains('The alias has been saved.', 'status');
        $this->drupalGet($edit['alias[0][value]']);
        // Previous alias should no longer work.
        $this->assertSession()
            ->pageTextNotContains($node4->label());
        // Alias should work.
        $this->assertSession()
            ->pageTextContains($node2->label());
        $this->assertSession()
            ->statusCodeEquals(200);
        // Update an existing alias to use a duplicate alias.
        $pid = $this->getPID($node3_alias);
        $edit = [];
        $edit['alias[0][value]'] = $node4_alias;
        $edit['path[0][value]'] = '/node/' . $node3->id();
        $this->drupalGet('admin/config/search/path/edit/' . $pid);
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->statusMessageContains("The alias {$edit['alias[0][value]']} is already in use in this language.", 'error');
        // Create an alias without a starting slash.
        $node5 = $this->drupalCreateNode();
        $edit = [];
        $edit['path[0][value]'] = 'node/' . $node5->id();
        $node5_alias = $this->randomMachineName(8);
        $edit['alias[0][value]'] = $node5_alias . '/';
        $this->drupalGet('admin/config/search/path/add');
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->addressEquals('admin/config/search/path/add');
        $this->assertSession()
            ->statusMessageContains('The source path has to start with a slash.', 'error');
        $this->assertSession()
            ->statusMessageContains('The alias path has to start with a slash.', 'error');
    }
    
    /**
     * Tests alias functionality through the node interfaces.
     */
    public function testNodeAlias() : void {
        // Create test node.
        $node1 = $this->drupalCreateNode();
        // Create alias.
        $edit = [];
        $edit['path[0][alias]'] = '/' . $this->randomMachineName(8);
        $this->drupalGet('node/' . $node1->id() . '/edit');
        $this->submitForm($edit, 'Save');
        // Confirm that the alias works.
        $this->drupalGet($edit['path[0][alias]']);
        $this->assertSession()
            ->pageTextContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(200);
        // Confirm the 'canonical' and 'shortlink' URLs.
        $this->assertSession()
            ->elementExists('xpath', "//link[contains(@rel, 'canonical') and contains(@href, '" . $edit['path[0][alias]'] . "')]");
        $this->assertSession()
            ->elementExists('xpath', "//link[contains(@rel, 'shortlink') and contains(@href, 'node/" . $node1->id() . "')]");
        $previous = $edit['path[0][alias]'];
        // Change alias to one containing "exotic" characters.
        // Lower-case letters.
        $edit['path[0][alias]'] = '/alias' . "- ._~!\$'\"()*@[]?&+%#,;=:" . "%23%25%26%2B%2F%3F" . "中國書۞";
        $connection = Database::getConnection();
        if ($connection->databaseType() != 'sqlite') {
            // When using LIKE for case-insensitivity, the SQLite driver is
            // currently unable to find the upper-case versions of non-ASCII
            // characters.
            // @todo fix this in https://www.drupal.org/node/2607432
            // cSpell:disable-next-line
            $edit['path[0][alias]'] .= "ïвβéø";
        }
        $this->drupalGet('node/' . $node1->id() . '/edit');
        $this->submitForm($edit, 'Save');
        // Confirm that the alias works.
        $this->drupalGet(mb_strtoupper($edit['path[0][alias]']));
        $this->assertSession()
            ->pageTextContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(200);
        // Make sure that previous alias no longer works.
        $this->drupalGet($previous);
        $this->assertSession()
            ->pageTextNotContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(404);
        // Create second test node.
        $node2 = $this->drupalCreateNode();
        // Set alias to second test node.
        // Leave $edit['path[0][alias]'] the same.
        $this->drupalGet('node/' . $node2->id() . '/edit');
        $this->submitForm($edit, 'Save');
        // Confirm that the alias didn't make a duplicate.
        $this->assertSession()
            ->statusMessageContains("The alias {$edit['path[0][alias]']} is already in use in this language.", 'error');
        // Delete alias.
        $this->drupalGet('node/' . $node1->id() . '/edit');
        $this->submitForm([
            'path[0][alias]' => '',
        ], 'Save');
        // Confirm that the alias no longer works.
        $this->drupalGet($edit['path[0][alias]']);
        $this->assertSession()
            ->pageTextNotContains($node1->label());
        $this->assertSession()
            ->statusCodeEquals(404);
        // Create third test node.
        $node3 = $this->drupalCreateNode();
        // Set its path alias to an absolute path.
        $edit = [
            'path[0][alias]' => '/' . $this->randomMachineName(8),
        ];
        $this->drupalGet('node/' . $node3->id() . '/edit');
        $this->submitForm($edit, 'Save');
        // Confirm that the alias was converted to a relative path.
        $this->drupalGet(trim($edit['path[0][alias]'], '/'));
        $this->assertSession()
            ->pageTextContains($node3->label());
        $this->assertSession()
            ->statusCodeEquals(200);
        // Create fourth test node.
        $node4 = $this->drupalCreateNode();
        // Set its path alias to have a trailing slash.
        $edit = [
            'path[0][alias]' => '/' . $this->randomMachineName(8) . '/',
        ];
        $this->drupalGet('node/' . $node4->id() . '/edit');
        $this->submitForm($edit, 'Save');
        // Confirm that the alias was converted to a relative path.
        $this->drupalGet(trim($edit['path[0][alias]'], '/'));
        $this->assertSession()
            ->pageTextContains($node4->label());
        $this->assertSession()
            ->statusCodeEquals(200);
        // Create fifth test node.
        $node5 = $this->drupalCreateNode();
        // Set a path alias.
        $edit = [
            'path[0][alias]' => '/' . $this->randomMachineName(8),
        ];
        $this->drupalGet('node/' . $node5->id() . '/edit');
        $this->submitForm($edit, 'Save');
        // Delete the node and check that the path alias is also deleted.
        $node5->delete();
        $path_alias = \Drupal::service('path_alias.repository')->lookUpBySystemPath('/node/' . $node5->id(), $node5->language()
            ->getId());
        $this->assertNull($path_alias, 'Alias was successfully deleted when the referenced node was deleted.');
        // Create sixth test node.
        $node6 = $this->drupalCreateNode();
        // Test the special case where the alias is '0'.
        $edit = [
            'path[0][alias]' => '0',
        ];
        $this->drupalGet($node6->toUrl('edit-form'));
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->statusMessageContains('The alias path has to start with a slash.', 'error');
        // Create an invalid alias with two leading slashes and verify that the
        // extra slash is removed when the link is generated. This ensures that URL
        // aliases cannot be used to inject external URLs.
        // @todo The user interface should either display an error message or
        //   automatically trim these invalid aliases, rather than allowing them to
        //   be silently created, at which point the functional aspects of this
        //   test will need to be moved elsewhere and switch to using a
        //   programmatically-created alias instead.
        $alias = $this->randomMachineName(8);
        $edit = [
            'path[0][alias]' => '//' . $alias,
        ];
        $this->drupalGet($node6->toUrl('edit-form'));
        $this->submitForm($edit, 'Save');
        $this->drupalGet(Url::fromRoute('system.admin_content'));
        // This checks the link href before clicking it, rather than using
        // \Drupal\Tests\BrowserTestBase::assertSession()->addressEquals() after
        // clicking it, because the test browser does not always preserve the
        // correct number of slashes in the URL when it visits internal links;
        // using \Drupal\Tests\BrowserTestBase::assertSession()->addressEquals()
        // would actually make the test pass unconditionally on the testbot (or
        // anywhere else where Drupal is installed in a subdirectory).
        $this->assertSession()
            ->elementAttributeContains('xpath', "//a[normalize-space(text())='{$node6->getTitle()}']", 'href', base_path() . $alias);
        $this->clickLink($node6->getTitle());
        $this->assertSession()
            ->statusCodeEquals(404);
    }
    
    /**
     * Returns the path ID.
     *
     * @param string $alias
     *   A string containing an aliased path.
     *
     * @return int
     *   Integer representing the path ID.
     */
    public function getPID($alias) {
        $result = \Drupal::entityTypeManager()->getStorage('path_alias')
            ->getQuery()
            ->condition('alias', $alias, '=')
            ->accessCheck(FALSE)
            ->execute();
        return reset($result);
    }
    
    /**
     * Tests that duplicate aliases fail validation.
     */
    public function testDuplicateNodeAlias() : void {
        // Create one node with a random alias.
        $node_one = $this->drupalCreateNode();
        $edit = [];
        $edit['path[0][alias]'] = '/' . $this->randomMachineName();
        $this->drupalGet('node/' . $node_one->id() . '/edit');
        $this->submitForm($edit, 'Save');
        // Now create another node and try to set the same alias.
        $node_two = $this->drupalCreateNode();
        $this->drupalGet('node/' . $node_two->id() . '/edit');
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->statusMessageContains("The alias {$edit['path[0][alias]']} is already in use in this language.", 'error');
        $path_alias = $this->assertSession()
            ->fieldExists('path[0][alias]');
        $this->assertSession()
            ->fieldValueEquals('path[0][alias]', $edit['path[0][alias]']);
        $this->assertTrue($path_alias->hasClass('error'));
        // Behavior here differs with the inline_form_errors module enabled.
        // Enable the inline_form_errors module and try this again. This module
        // improves validation with a link in the error message(s) to the fields
        // which have invalid input.
        $this->assertTrue($this->container
            ->get('module_installer')
            ->install([
            'inline_form_errors',
        ], TRUE), 'Installed inline_form_errors.');
        // Attempt to edit the second node again, as before.
        $this->drupalGet('node/' . $node_two->id() . '/edit');
        $this->submitForm($edit, 'Preview');
        // This error should still be present next to the field.
        $this->assertSession()
            ->pageTextContains("The alias {$edit['path[0][alias]']} is already in use in this language.");
        // The validation error set for the page should include this text.
        $this->assertSession()
            ->statusMessageContains('1 error has been found: URL alias', 'error');
        // The text 'URL alias' should be a link.
        $this->assertSession()
            ->linkExists('URL alias');
        // The link should be to the ID of the URL alias field.
        $this->assertSession()
            ->linkByHrefExists('#edit-path-0-alias');
    }

}