added invoice voter (#316)

src/Voter/InvoiceVoter.php

@@ -0,0 +1,136 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Voter;
+
+use App\Entity\InvoiceTemplate;
+use App\Entity\User;
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+
+/**
+ * A voter to check permissions on Invoices.
+ */
+class InvoiceVoter extends AbstractVoter
+{
+    public const VIEW = 'view';
+    public const EDIT = 'edit';
+    public const CREATE = 'create';
+    public const DELETE = 'delete';
+
+    public const ALLOWED_ATTRIBUTES = [
+        self::VIEW,
+        self::CREATE,
+        self::EDIT,
+        self::DELETE
+    ];
+
+    public const ALLOWED_SUBJECTS = [
+        'invoice',
+        'invoice_template'
+    ];
+
+    /**
+     * @param string $attribute
+     * @param mixed $subject
+     * @return bool
+     */
+    protected function supports($attribute, $subject)
+    {
+        if (!in_array($attribute, self::ALLOWED_ATTRIBUTES)) {
+            return false;
+        }
+
+        if (!$subject instanceof InvoiceTemplate) {
+            if (!is_string($subject) || !in_array($subject, self::ALLOWED_SUBJECTS)) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * @param string $attribute
+     * @param string|InvoiceTemplate $subject
+     * @param TokenInterface $token
+     * @return bool
+     */
+    protected function voteOnAttribute($attribute, $subject, TokenInterface $token)
+    {
+        $user = $token->getUser();
+
+        if (!$user instanceof User) {
+            return false;
+        }
+
+        switch ($attribute) {
+            case self::VIEW:
+                return $this->canView($user, $token);
+            case self::CREATE:
+                return $this->canCreate($user, $token);
+            case self::EDIT:
+                return $this->canEdit($user, $token);
+            case self::DELETE:
+                return $this->canDelete($token);
+        }
+
+        return false;
+    }
+
+    /**
+     * @param User $user
+     * @param TokenInterface $token
+     * @return bool
+     */
+    protected function canView(User $user, TokenInterface $token)
+    {
+        if ($this->canEdit($user, $token)) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param User $user
+     * @param TokenInterface $token
+     * @return bool
+     */
+    protected function canCreate(User $user, TokenInterface $token)
+    {
+        if ($this->canDelete($token)) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param User $user
+     * @param TokenInterface $token
+     * @return bool
+     */
+    protected function canEdit(User $user, TokenInterface $token)
+    {
+        if ($this->canDelete($token)) {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * @param TokenInterface $token
+     * @return bool
+     */
+    protected function canDelete(TokenInterface $token)
+    {
+        return $this->isFullyAuthenticated($token) && $this->hasRole('ROLE_TEAMLEAD', $token);
+    }
+}