From c9d7e88cc70b6ad124c28be479a6e64c4b174ea6 Mon Sep 17 00:00:00 2001
From: Igor Scheller <igor.scheller@igorshp.de>
Date: Wed, 14 Nov 2018 02:17:27 +0100
Subject: Implemented controller permissions

---
 src/Middleware/CallableHandler.php |  8 +++++++
 src/Middleware/RequestHandler.php  | 45 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+)

(limited to 'src/Middleware')

diff --git a/src/Middleware/CallableHandler.php b/src/Middleware/CallableHandler.php
index eb493bf1..0bb666a3 100644
--- a/src/Middleware/CallableHandler.php
+++ b/src/Middleware/CallableHandler.php
@@ -74,4 +74,12 @@ class CallableHandler implements MiddlewareInterface, RequestHandlerInterface
         $response = $this->container->get('response');
         return $response->withContent($return);
     }
+
+    /**
+     * @return callable
+     */
+    public function getCallable()
+    {
+        return $this->callable;
+    }
 }
diff --git a/src/Middleware/RequestHandler.php b/src/Middleware/RequestHandler.php
index ebe1ff9e..b0fc664f 100644
--- a/src/Middleware/RequestHandler.php
+++ b/src/Middleware/RequestHandler.php
@@ -3,6 +3,9 @@
 namespace Engelsystem\Middleware;
 
 use Engelsystem\Application;
+use Engelsystem\Controllers\BaseController;
+use Engelsystem\Helpers\Authenticator;
+use Engelsystem\Http\Exceptions\HttpForbidden;
 use InvalidArgumentException;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
@@ -37,6 +40,14 @@ class RequestHandler implements MiddlewareInterface
         $requestHandler = $request->getAttribute('route-request-handler');
         $requestHandler = $this->resolveRequestHandler($requestHandler);
 
+        if ($requestHandler instanceof CallableHandler) {
+            $callable = $requestHandler->getCallable();
+
+            if (is_array($callable) && $callable[0] instanceof BaseController) {
+                $this->checkPermissions($callable[0], $callable[1]);
+            }
+        }
+
         if ($requestHandler instanceof MiddlewareInterface) {
             return $requestHandler->process($request, $handler);
         }
@@ -49,6 +60,8 @@ class RequestHandler implements MiddlewareInterface
     }
 
     /**
+     * Resolve the given class
+     *
      * @param string|callable|MiddlewareInterface|RequestHandlerInterface $handler
      * @return MiddlewareInterface|RequestHandlerInterface
      */
@@ -76,4 +89,36 @@ class RequestHandler implements MiddlewareInterface
 
         return $this->resolveMiddleware($handler);
     }
+
+    /**
+     * Check required page permissions
+     *
+     * @param BaseController $controller
+     * @param string         $method
+     * @return bool
+     */
+    protected function checkPermissions(BaseController $controller, string $method): bool
+    {
+        /** @var Authenticator $auth */
+        $auth = $this->container->get('auth');
+        $permissions = $controller->getPermissions();
+
+        // Merge action permissions
+        if (isset($permissions[$method])) {
+            $permissions = array_merge($permissions, (array)$permissions[$method]);
+        }
+
+        foreach ($permissions as $key => $permission) {
+            // Skip all action permission entries
+            if (!is_int($key)) {
+                continue;
+            }
+
+            if (!$auth->can($permission)) {
+                throw new HttpForbidden();
+            }
+        }
+
+        return true;
+    }
 }
-- 
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