1 files changed, 60 insertions, 0 deletions
diff --git a/src/Helpers/Authenticator.php b/src/Helpers/Authenticator.php
index 3061fbc1..edceaa44 100644
--- a/src/Helpers/Authenticator.php
+++ b/src/Helpers/Authenticator.php
@@ -2,6 +2,7 @@
 
 namespace Engelsystem\Helpers;
 
+use Carbon\Carbon;
 use Engelsystem\Models\User\User;
 use Engelsystem\Models\User\User as UserRepository;
 use Psr\Http\Message\ServerRequestInterface;
@@ -21,6 +22,9 @@ class Authenticator
     /** @var UserRepository */
     protected $userRepository;
 
+    /** @var string[] */
+    protected $permissions;
+
     /**
      * @param ServerRequestInterface $request
      * @param Session                $session
@@ -90,4 +94,60 @@ class Authenticator
 
         return $this->user;
     }
+
+    /**
+     * @param string[]|string $abilities
+     * @return bool
+     */
+    public function can($abilities): bool
+    {
+        $abilities = (array)$abilities;
+
+        if (empty($this->permissions)) {
+            $userId = $this->session->get('uid');
+
+            if ($userId) {
+                if ($user = $this->user()) {
+                    $this->permissions = $this->getPermissionsByUser($user);
+
+                    $user->last_login_at = new Carbon();
+                    $user->save();
+                } else {
+                    $this->session->remove('uid');
+                }
+            }
+
+            if (empty($this->permissions)) {
+                $this->permissions = $this->getPermissionsByGroup(-10);
+            }
+        }
+
+        foreach ($abilities as $ability) {
+            if (!in_array($ability, $this->permissions)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @param User $user
+     * @return array
+     * @codeCoverageIgnore
+     */
+    protected function getPermissionsByUser($user)
+    {
+        return privileges_for_user($user->id);
+    }
+
+    /**
+     * @param int $groupId
+     * @return array
+     * @codeCoverageIgnore
+     */
+    protected function getPermissionsByGroup(int $groupId)
+    {
+        return privileges_for_group($groupId);
+    }
 }