class RouterTest

class RouterTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'router_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Confirms that our FinishResponseSubscriber logic works properly.
     */
    public function testFinishResponseSubscriber() {
        $renderer_required_cache_contexts = [
            'languages:' . LanguageInterface::TYPE_INTERFACE,
            'theme',
            'user.permissions',
        ];
        $expected_cache_contexts = Cache::mergeContexts($renderer_required_cache_contexts, [
            'url.query_args:' . MainContentViewSubscriber::WRAPPER_FORMAT,
        ]);
        sort($expected_cache_contexts);
        // Confirm that the router can get to a controller.
        $this->drupalGet('router_test/test1');
        $this->assertSession()
            ->pageTextContains(TestControllers::LONG_TEXT);
        $session = $this->getSession();
        // Check expected headers from FinishResponseSubscriber.
        $this->assertSession()
            ->responseHeaderEquals('X-UA-Compatible', 'IE=edge');
        $this->assertSession()
            ->responseHeaderEquals('Content-language', 'en');
        $this->assertSession()
            ->responseHeaderEquals('X-Content-Type-Options', 'nosniff');
        $this->assertSession()
            ->responseHeaderEquals('X-Frame-Options', 'SAMEORIGIN');
        if (strcasecmp($session->getResponseHeader('vary'), 'accept-encoding') !== 0) {
            $this->assertSession()
                ->responseHeaderDoesNotExist('Vary');
        }
        $this->drupalGet('router_test/test2');
        $this->assertSession()
            ->pageTextContains('test2');
        // Check expected headers from FinishResponseSubscriber.
        $headers = $session->getResponseHeaders();
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Contexts', implode(' ', $expected_cache_contexts));
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Tags', 'config:user.role.anonymous http_response rendered');
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Max-Age', '-1 (Permanent)');
        // Confirm that the page wrapping is being added, so we're not getting a
        // raw body returned.
        $this->assertSession()
            ->responseContains('</html>');
        // In some instances, the subrequest handling may get confused and render
        // a page inception style.  This test verifies that is not happening.
        $this->assertSession()
            ->responseNotMatches('#</body>.*</body>#s');
        // Confirm that route-level access check's cacheability is applied to the
        // X-Drupal-Cache-Contexts and X-Drupal-Cache-Tags headers.
        // 1. controller result: render array, globally cacheable route access.
        $this->drupalGet('router_test/test18');
        $expected_cache_contexts = Cache::mergeContexts($renderer_required_cache_contexts, [
            'url',
        ]);
        sort($expected_cache_contexts);
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Contexts', implode(' ', $expected_cache_contexts));
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Tags', 'config:user.role.anonymous foo http_response rendered');
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Max-Age', '60');
        // 2. controller result: render array, per-role cacheable route access.
        $this->drupalGet('router_test/test19');
        $expected_cache_contexts = Cache::mergeContexts($renderer_required_cache_contexts, [
            'url',
            'user.roles',
        ]);
        sort($expected_cache_contexts);
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Contexts', implode(' ', $expected_cache_contexts));
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Tags', 'config:user.role.anonymous foo http_response rendered');
        // 3. controller result: Response object, globally cacheable route access.
        $this->drupalGet('router_test/test1');
        $this->assertSession()
            ->responseHeaderDoesNotExist('X-Drupal-Cache-Contexts');
        $this->assertSession()
            ->responseHeaderDoesNotExist('X-Drupal-Cache-Tags');
        $this->assertSession()
            ->responseHeaderDoesNotExist('X-Drupal-Cache-Max-Age');
        // 4. controller result: Response object, per-role cacheable route access.
        $this->drupalGet('router_test/test20');
        $this->assertSession()
            ->responseHeaderDoesNotExist('X-Drupal-Cache-Contexts');
        $this->assertSession()
            ->responseHeaderDoesNotExist('X-Drupal-Cache-Tags');
        $this->assertSession()
            ->responseHeaderDoesNotExist('X-Drupal-Cache-Max-Age');
        // 5. controller result: CacheableResponse object, globally cacheable route access.
        $this->drupalGet('router_test/test21');
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Contexts', '');
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Tags', 'http_response');
        // 6. controller result: CacheableResponse object, per-role cacheable route access.
        $this->drupalGet('router_test/test22');
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Contexts', 'user.roles');
        $this->assertSession()
            ->responseHeaderEquals('X-Drupal-Cache-Tags', 'http_response');
        // Finally, verify that the X-Drupal-Cache-Contexts and X-Drupal-Cache-Tags
        // headers are not sent when their container parameter is set to FALSE.
        $this->drupalGet('router_test/test18');
        $this->assertSession()
            ->responseHeaderExists('X-Drupal-Cache-Contexts');
        $this->assertSession()
            ->responseHeaderExists('X-Drupal-Cache-Tags');
        $this->assertSession()
            ->responseHeaderExists('X-Drupal-Cache-Max-Age');
        $this->setContainerParameter('http.response.debug_cacheability_headers', FALSE);
        $this->rebuildContainer();
        $this->resetAll();
        $this->drupalGet('router_test/test18');
        $this->assertSession()
            ->responseHeaderDoesNotExist('X-Drupal-Cache-Contexts');
        $this->assertSession()
            ->responseHeaderDoesNotExist('X-Drupal-Cache-Tags');
        $this->assertSession()
            ->responseHeaderDoesNotExist('X-Drupal-Cache-Max-Age');
    }
    
    /**
     * Confirms that multiple routes with the same path do not cause an error.
     */
    public function testDuplicateRoutePaths() {
        // Tests two routes with exactly the same path. The route with the maximum
        // fit and lowest sorting route name will match, regardless of the order the
        // routes are declared.
        // @see \Drupal\Core\Routing\RouteProvider::getRoutesByPath()
        $this->drupalGet('router-test/duplicate-path2');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->responseContains('router_test.two_duplicate1');
        // Tests three routes with same the path. One of the routes the path has a
        // different case.
        $this->drupalGet('router-test/case-sensitive-duplicate-path3');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->responseContains('router_test.case_sensitive_duplicate1');
        // While case-insensitive matching works, exact matches are preferred.
        $this->drupalGet('router-test/case-sensitive-Duplicate-PATH3');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->responseContains('router_test.case_sensitive_duplicate2');
        // Test that case-insensitive matching works, falling back to the first
        // route defined.
        $this->drupalGet('router-test/case-sensitive-Duplicate-Path3');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->responseContains('router_test.case_sensitive_duplicate1');
    }
    
    /**
     * Confirms that placeholders in paths work correctly.
     */
    public function testControllerPlaceholders() {
        // Test with 0 and a random value.
        $values = [
            "0",
            $this->randomMachineName(),
        ];
        foreach ($values as $value) {
            $this->drupalGet('router_test/test3/' . $value);
            $this->assertSession()
                ->statusCodeEquals(200);
            $this->assertSession()
                ->pageTextContains($value);
        }
        // Confirm that the page wrapping is being added, so we're not getting a
        // raw body returned.
        $this->assertSession()
            ->responseContains('</html>');
        // In some instances, the subrequest handling may get confused and render
        // a page inception style.  This test verifies that is not happening.
        $this->assertSession()
            ->responseNotMatches('#</body>.*</body>#s');
    }
    
    /**
     * Confirms that default placeholders in paths work correctly.
     */
    public function testControllerPlaceholdersDefaultValues() {
        $this->drupalGet('router_test/test4');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('narf');
        // Confirm that the page wrapping is being added, so we're not getting a
        // raw body returned.
        $this->assertSession()
            ->responseContains('</html>');
        // In some instances, the subrequest handling may get confused and render
        // a page inception style.  This test verifies that is not happening.
        $this->assertSession()
            ->responseNotMatches('#</body>.*</body>#s');
    }
    
    /**
     * Confirms that default placeholders in paths work correctly.
     */
    public function testControllerPlaceholdersDefaultValuesProvided() {
        $this->drupalGet('router_test/test4/barf');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('barf');
        // Confirm that the page wrapping is being added, so we're not getting a
        // raw body returned.
        $this->assertSession()
            ->responseContains('</html>');
        // In some instances, the subrequest handling may get confused and render
        // a page inception style.  This test verifies that is not happening.
        $this->assertSession()
            ->responseNotMatches('#</body>.*</body>#s');
    }
    
    /**
     * Checks that dynamically defined and altered routes work correctly.
     *
     * @see \Drupal\router_test\RouteSubscriber
     */
    public function testDynamicRoutes() {
        // Test the altered route.
        $this->drupalGet('router_test/test6');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('test5');
    }
    
    /**
     * Checks that a request with text/html response gets rendered as a page.
     */
    public function testControllerResolutionPage() {
        $this->drupalGet('/router_test/test10');
        $this->assertSession()
            ->pageTextContains('abcde');
        // Confirm that the page wrapping is being added, so we're not getting a
        // raw body returned.
        $this->assertSession()
            ->responseContains('</html>');
        // In some instances, the subrequest handling may get confused and render
        // a page inception style. This test verifies that is not happening.
        $this->assertSession()
            ->responseNotMatches('#</body>.*</body>#s');
    }
    
    /**
     * Checks the generate method on the URL generator using the front router.
     */
    public function testUrlGeneratorFront() {
        $front_url = Url::fromRoute('<front>', [], [
            'absolute' => TRUE,
        ]);
        // Compare to the site base URL.
        $base_url = Url::fromUri('base:/', [
            'absolute' => TRUE,
        ]);
        $this->assertSame($base_url->toString(), $front_url->toString());
    }
    
    /**
     * Tests that a page trying to match a path will succeed.
     */
    public function testRouterMatching() {
        $this->drupalGet('router_test/test14/1');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('User route "entity.user.canonical" was matched.');
        // Try to match a route for a non-existent user.
        $this->drupalGet('router_test/test14/2');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('Route not matched.');
        // Check that very long paths don't cause an error.
        $path = 'router_test/test1';
        $suffix = '/d/r/u/p/a/l';
        for ($i = 0; $i < 10; $i++) {
            $path .= $suffix;
            $this->drupalGet($path);
            $this->assertSession()
                ->statusCodeEquals(404);
        }
    }
    
    /**
     * Tests that a PSR-7 response works.
     */
    public function testRouterResponsePsr7() {
        $this->drupalGet('/router_test/test23');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('test23');
    }
    
    /**
     * Tests the user account on the DIC.
     */
    public function testUserAccount() {
        $account = $this->drupalCreateUser();
        $this->drupalLogin($account);
        $second_account = $this->drupalCreateUser();
        $this->drupalGet('router_test/test12/' . $second_account->id());
        $this->assertSession()
            ->pageTextContains($account->getAccountName() . ':' . $second_account->getAccountName());
        $this->assertEquals($this->loggedInUser
            ->id(), $account->id(), 'Ensure that the user was not changed.');
        $this->drupalGet('router_test/test13/' . $second_account->id());
        $this->assertSession()
            ->pageTextContains($account->getAccountName() . ':' . $second_account->getAccountName());
        $this->assertEquals($this->loggedInUser
            ->id(), $account->id(), 'Ensure that the user was not changed.');
    }
    
    /**
     * Checks that an ajax request gets rendered as an Ajax response, by mime.
     */
    public function testControllerResolutionAjax() {
        // This will fail with a JSON parse error if the request is not routed to
        // The correct controller.
        $options['query'][MainContentViewSubscriber::WRAPPER_FORMAT] = 'drupal_ajax';
        $headers[] = 'X-Requested-With: XMLHttpRequest';
        $this->drupalGet('/router_test/test10', $options, $headers);
        $this->assertSession()
            ->responseHeaderEquals('Content-Type', 'application/json');
        $this->assertSession()
            ->pageTextContains('abcde');
    }
    
    /**
     * Tests that routes no longer exist for a module that has been uninstalled.
     */
    public function testRouterUninstallInstall() {
        \Drupal::service('module_installer')->uninstall([
            'router_test',
        ]);
        try {
            \Drupal::service('router.route_provider')->getRouteByName('router_test.1');
            $this->fail('Route was delete on uninstall.');
        } catch (RouteNotFoundException $e) {
            // Expected exception; just continue testing.
        }
        // Install the module again.
        \Drupal::service('module_installer')->install([
            'router_test',
        ]);
        $route = \Drupal::service('router.route_provider')->getRouteByName('router_test.1');
        $this->assertNotNull($route, 'Route exists after module installation');
    }
    
    /**
     * Ensure that multiple successive slashes are redirected.
     */
    public function testSuccessiveSlashes() {
        $request = $this->container
            ->get('request_stack')
            ->getCurrentRequest();
        // Test a simple path with successive leading slashes.
        $url = $request->getUriForPath('//////router_test/test1');
        $this->drupalGet($url);
        $this->assertSession()
            ->addressEquals($request->getUriForPath('/router_test/test1'));
        // Test successive slashes in the middle.
        $url = $request->getUriForPath('/router_test//////test1') . '?qs=test';
        $this->drupalGet($url);
        $this->assertSession()
            ->addressEquals($request->getUriForPath('/router_test/test1') . '?qs=test');
        // Ensure that external URLs in destination query params are not redirected
        // to.
        $url = $request->getUriForPath('/////////////////////////////////////////////////router_test/test1') . '?qs=test&destination=http://www.example.com%5c@drupal8alt.test';
        $this->drupalGet($url);
        $this->assertSession()
            ->addressEquals($request->getUriForPath('/router_test/test1') . '?qs=test');
    }

}