Added possibility to access PartAssociations via API

src/Security/Voter/PartAssociationVoter.php

@@ -0,0 +1,104 @@
+<?php
+/*
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ *  Copyright (C) 2019 - 2022 Jan Böhmer (https://github.com/jbtronics)
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as published
+ *  by the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+declare(strict_types=1);
+
+/**
+ * This file is part of Part-DB (https://github.com/Part-DB/Part-DB-symfony).
+ *
+ * Copyright (C) 2019 - 2022 Jan Böhmer (https://github.com/jbtronics)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published
+ * by the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+namespace App\Security\Voter;
+
+use App\Entity\Parts\PartAssociation;
+use App\Services\UserSystem\VoterHelper;
+use Symfony\Bundle\SecurityBundle\Security;
+use App\Entity\Parts\Part;
+use Symfony\Component\Security\Core\Authentication\Token\TokenInterface;
+use Symfony\Component\Security\Core\Authorization\Voter\Voter;
+
+/**
+ * This voter handles permissions for part associations.
+ * The permissions are inherited from the part.
+ */
+final class PartAssociationVoter extends Voter
+{
+    public function __construct(private readonly Security $security, private readonly VoterHelper $helper)
+    {
+    }
+
+    protected const ALLOWED_PERMS = ['read', 'edit', 'create', 'delete', 'show_history', 'revert_element'];
+
+    protected function voteOnAttribute(string $attribute, $subject, TokenInterface $token): bool
+    {
+        if (!is_string($subject) && !$subject instanceof PartAssociation) {
+            throw new \RuntimeException('Invalid subject type!');
+        }
+
+        $operation = match ($attribute) {
+            'read' => 'read',
+            'edit', 'create', 'delete' => 'edit',
+            'show_history' => 'show_history',
+            'revert_element' => 'revert_element',
+            default => throw new \RuntimeException('Encountered unknown operation "'.$attribute.'"!'),
+        };
+
+        //If we have no part associated use the generic part permission
+        if (is_string($subject) ||  !$subject->getOwner() instanceof Part) {
+            return $this->helper->isGranted($token, 'parts', $operation);
+        }
+
+        //Otherwise vote on the part
+        return $this->security->isGranted($attribute, $subject->getOwner());
+    }
+
+    protected function supports($attribute, $subject): bool
+    {
+        if (is_a($subject, PartAssociation::class, true)) {
+            return in_array($attribute, self::ALLOWED_PERMS, true);
+        }
+
+        return false;
+    }
+
+    public function supportsType(string $subjectType): bool
+    {
+        return $subjectType === 'string' || is_a($subjectType, PartAssociation::class, true);
+    }
+
+    public function supportsAttribute(string $attribute): bool
+    {
+        return in_array($attribute, self::ALLOWED_PERMS, true);
+    }
+}