Enhance router

composer.json

@@ -34,6 +34,7 @@
     "require": {
         "php": "^8.1",
         "psr/http-message": "^2.0",
+        "psr/http-server-handler": "^1.0",
         "psr/http-server-middleware": "^1.0",
         "yiisoft/middleware-dispatcher": "^5.2"
     },
@@ -46,7 +47,6 @@
         "roave/infection-static-analysis-plugin": "^1.34",
         "spatie/phpunit-watcher": "^1.23",
         "vimeo/psalm": "^5.16",
-        "yiisoft/strings": "^2.4",
         "yiisoft/test-support": "^3.0"
     },
     "autoload": {

src/FileRouter.php

@@ -9,7 +9,6 @@
 use Psr\Http\Server\MiddlewareInterface;
 use Psr\Http\Server\RequestHandlerInterface;
 use Yiisoft\Middleware\Dispatcher\MiddlewareDispatcher;
-use Yiisoft\Strings\StringHelper;
 
 final class FileRouter implements MiddlewareInterface
 {
@@ -48,16 +47,33 @@ public function withNamespace(string $namespace): self
 
     public function process(ServerRequestInterface $request, RequestHandlerInterface $handler): ResponseInterface
     {
+        /**
+         * @psalm-var class-string|null $controllerClass
+         */
         $controllerClass = $this->parseController($request);
         if ($controllerClass === null) {
             return $handler->handle($request);
         }
-        $action = $this->parseAction($request);
+        /** @psalm-suppress InvalidPropertyFetch */
+        $actions = $controllerClass::$actions ?? [
+            'HEAD' => 'head',
+            'OPTIONS' => 'options',
+            'GET' => 'index',
+            'POST' => 'create',
+            'PUT' => 'update',
+            'DELETE' => 'delete',
+        ];
+        $action = $actions[$request->getMethod()] ?? null;
+
+        if ($action === null) {
+            return $handler->handle($request);
+        }
 
         if (!method_exists($controllerClass, $action)) {
             return $handler->handle($request);
         }
 
+        /** @psalm-suppress InvalidPropertyFetch */
         $middlewares = $controllerClass::$middlewares[$action] ?? [];
         $middlewares[] = [$controllerClass, $action];
 
@@ -66,18 +82,7 @@ public function process(ServerRequestInterface $request, RequestHandlerInterface
         return $middlewareDispatcher->dispatch($request, $handler);
     }
 
-    private function parseAction(ServerRequestInterface $request): ?string
-    {
-        return match ($request->getMethod()) {
-            'HEAD', 'GET' => 'index',
-            'POST' => 'create',
-            'PUT' => 'update',
-            'DELETE' => 'delete',
-            default => throw new \Exception('Not implemented.'),
-        };
-    }
-
-    private function parseController(ServerRequestInterface $request): mixed
+    private function parseController(ServerRequestInterface $request): ?string
     {
         $path = $request->getUri()->getPath();
         if ($path === '/') {
@@ -89,15 +94,19 @@ private function parseController(ServerRequestInterface $request): mixed
                 fn(array $matches) => strtoupper($matches[1]),
                 $path,
             );
-            $directoryPath = StringHelper::directoryName($controllerName);
 
-            $controllerName = StringHelper::basename($controllerName);
+            if (!preg_match('#^(.*?)/([^/]+)/?$#', $controllerName, $matches)) {
+                return null;
+            }
+            $directoryPath = $matches[1];
+            $controllerName = $matches[2];
         }
 
         $controller = $controllerName . $this->classPostfix;
+
         $className = str_replace(
-            ['/', '\\\\'],
-            ['\\', '\\'],
+            ['\\/\\', '\\/', '\\\\'],
+            '\\',
             $this->namespace . '\\' . $this->baseControllerDirectory . '\\' . $directoryPath . '\\' . $controller
         );
 

tests/FileRouterTest.php

@@ -42,6 +42,27 @@ public function testMiddleware(): void
         $this->assertEquals('x-header-value', $response->getHeaderLine('X-Header-Name'));
     }
 
+    public function testTrailingSlash(): void
+    {
+        /**
+         * @var FileRouter $router
+         */
+        $router = $this->createRouter();
+        $router = $router
+            ->withNamespace('Yiisoft\FileRouter\Tests\Support\App1');
+
+        $handler = $this->createExceptionHandler();
+        $request = new ServerRequest(
+            method: 'GET',
+            uri: '/user/',
+        );
+
+        $response = $router->process($request, $handler);
+
+        $this->assertEquals(200, $response->getStatusCode());
+        $this->assertEquals('Hello, index!', (string) $response->getBody());
+    }
+
     #[DataProvider('dataRouter')]
     public function testRouter(string $method, string $uri, string $expectedResponse): void
     {
@@ -89,6 +110,23 @@ public static function dataRouter(): iterable
     }
 
     public function testUnsupportedMethod(): void
+    {
+        $router = $this->createRouter();
+        $router = $router
+            ->withNamespace('Yiisoft\FileRouter\Tests\Support\App1');
+
+        $handler = $this->createExceptionHandler();
+        $request = new ServerRequest(
+            method: 'HEAD',
+            uri: '/',
+        );
+
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage('Not implemented from tests.');
+        $router->process($request, $handler);
+    }
+
+    public function testNotImplementedAction(): void
     {
         $router = $this->createRouter();
         $router = $router
@@ -105,6 +143,40 @@ public function testUnsupportedMethod(): void
         $router->process($request, $handler);
     }
 
+    public function testUnknownController(): void
+    {
+        $router = $this->createRouter();
+        $router = $router
+            ->withNamespace('Yiisoft\FileRouter\Tests\Support\App1');
+
+        $handler = $this->createExceptionHandler();
+        $request = new ServerRequest(
+            method: 'DELETE',
+            uri: '/test/123',
+        );
+
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage('Not implemented from tests.');
+        $router->process($request, $handler);
+    }
+
+    public function testIncorrectUrl(): void
+    {
+        $router = $this->createRouter();
+        $router = $router
+            ->withNamespace('Yiisoft\FileRouter\Tests\Support\App1');
+
+        $handler = $this->createExceptionHandler();
+        $request = new ServerRequest(
+            method: 'DELETE',
+            uri: '/test//123///',
+        );
+
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage('Not implemented from tests.');
+        $router->process($request, $handler);
+    }
+
     public function testBaseController(): void
     {
         $router = $this->createRouter();

tests/Support/App1/Controller/IndexController.php

@@ -9,6 +9,10 @@
 
 class IndexController
 {
+    public static array $actions = [
+        'GET' => 'index',
+        'DELETE' => 'delete',
+    ];
     public function index(): ResponseInterface
     {
         return new TextResponse('Hello, index!', 200, ['X-Header-Name' => 'X-Header-Value']);