Move another trait out of obsolete Flarum\Core namespace

src/User/AssertPermissionTrait.php

@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of Flarum.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Flarum\User;
+
+use Flarum\User\Exception\PermissionDeniedException;
+
+trait AssertPermissionTrait
+{
+    /**
+     * @param $condition
+     * @throws PermissionDeniedException
+     */
+    protected function assertPermission($condition)
+    {
+        if (! $condition) {
+            throw new PermissionDeniedException;
+        }
+    }
+
+    /**
+     * @param User $actor
+     * @param string $ability
+     * @param mixed $arguments
+     * @throws PermissionDeniedException
+     */
+    protected function assertCan(User $actor, $ability, $arguments = [])
+    {
+        $this->assertPermission($actor->can($ability, $arguments));
+    }
+
+    /**
+     * @param User $actor
+     * @throws \Flarum\User\Exception\PermissionDeniedException
+     */
+    protected function assertGuest(User $actor)
+    {
+        $this->assertPermission($actor->isGuest());
+    }
+
+    /**
+     * @param User $actor
+     * @throws PermissionDeniedException
+     */
+    protected function assertRegistered(User $actor)
+    {
+        $this->assertPermission(! $actor->isGuest());
+    }
+
+    /**
+     * @param User $actor
+     * @throws PermissionDeniedException
+     */
+    protected function assertAdmin(User $actor)
+    {
+        $this->assertCan($actor, 'administrate');
+    }
+}