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application/Espo/Core/Acl/AccessChecker/AccessCheckers/Foreign.php

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+<?php
+/************************************************************************
+ * This file is part of EspoCRM.
+ *
+ * EspoCRM – Open Source CRM application.
+ * Copyright (C) 2014-2025 EspoCRM, Inc.
+ * Website: https://www.espocrm.com
+ *
+ * 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/>.
+ *
+ * The interactive user interfaces in modified source and object code versions
+ * of this program must display Appropriate Legal Notices, as required under
+ * Section 5 of the GNU Affero General Public License version 3.
+ *
+ * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
+ * these Appropriate Legal Notices must retain the display of the "EspoCRM" word.
+ ************************************************************************/
+
+namespace Espo\Core\Acl\AccessChecker\AccessCheckers;
+
+use Espo\Entities\User;
+use Espo\ORM\Entity;
+use Espo\Core\Utils\Metadata;
+use Espo\Core\Acl\DefaultAccessChecker;
+use Espo\Core\Acl\Traits\DefaultAccessCheckerDependency;
+use Espo\Core\Acl\AccessEntityCreateChecker;
+use Espo\Core\Acl\AccessEntityReadChecker;
+use Espo\Core\Acl\AccessEntityEditChecker;
+use Espo\Core\Acl\AccessEntityDeleteChecker;
+use Espo\Core\Acl\AccessEntityStreamChecker;
+use Espo\Core\Acl\ScopeData;
+
+use Espo\ORM\EntityManager;
+
+use LogicException;
+
+/**
+ * Access is determined by access to a foreign entity.
+ *
+ * @implements AccessEntityCreateChecker<Entity>
+ * @implements AccessEntityReadChecker<Entity>
+ * @implements AccessEntityEditChecker<Entity>
+ * @implements AccessEntityDeleteChecker<Entity>
+ * @implements AccessEntityStreamChecker<Entity>
+ */
+class Foreign implements
+
+    AccessEntityCreateChecker,
+    AccessEntityReadChecker,
+    AccessEntityEditChecker,
+    AccessEntityDeleteChecker,
+    AccessEntityStreamChecker
+{
+    use DefaultAccessCheckerDependency;
+
+    public function __construct(
+        private Metadata $metadata,
+        DefaultAccessChecker $defaultAccessChecker,
+        private EntityManager $entityManager
+    ) {
+        $this->defaultAccessChecker = $defaultAccessChecker;
+    }
+
+    private function getForeignEntity(Entity $entity): ?Entity
+    {
+        $entityType = $entity->getEntityType();
+
+        $link = $this->metadata->get(['aclDefs', $entityType, 'link']);
+
+        if (!$link) {
+            throw new LogicException("No `link` in aclDefs for {$entityType}.");
+        }
+
+        if ($entity->isNew()) {
+            $foreignEntityType = $this->entityManager
+                ->getDefs()
+                ->getEntity($entityType)
+                ->getRelation($link)
+                ->getForeignEntityType();
+
+            /** @var ?string $id */
+            $id = $entity->get($link . 'Id');
+
+            if (!$id) {
+                return null;
+            }
+
+            return $this->entityManager->getEntityById($foreignEntityType, $id);
+        }
+
+        return $this->entityManager
+            ->getRDBRepository($entityType)
+            ->getRelation($entity, $link)
+            ->findOne();
+    }
+
+    public function checkEntityCreate(User $user, Entity $entity, ScopeData $data): bool
+    {
+        $foreign = $this->getForeignEntity($entity);
+
+        if (!$foreign) {
+            return false;
+        }
+
+        // @todo Check parent 'edit' access.
+
+        return $this->defaultAccessChecker->checkEntityCreate($user, $foreign, $data);
+    }
+
+    public function checkEntityRead(User $user, Entity $entity, ScopeData $data): bool
+    {
+        $foreign = $this->getForeignEntity($entity);
+
+        if (!$foreign) {
+            return false;
+        }
+
+        return $this->defaultAccessChecker->checkEntityRead($user, $foreign, $data);
+    }
+
+    public function checkEntityEdit(User $user, Entity $entity, ScopeData $data): bool
+    {
+        $foreign = $this->getForeignEntity($entity);
+
+        if (!$foreign) {
+            return false;
+        }
+
+        return $this->defaultAccessChecker->checkEntityEdit($user, $foreign, $data);
+    }
+
+    public function checkEntityDelete(User $user, Entity $entity, ScopeData $data): bool
+    {
+        $foreign = $this->getForeignEntity($entity);
+
+        if (!$foreign) {
+            if ($user->isAdmin()) {
+                return true;
+            }
+
+            return false;
+        }
+
+        return $this->defaultAccessChecker->checkEntityDelete($user, $foreign, $data);
+    }
+
+    public function checkEntityStream(User $user, Entity $entity, ScopeData $data): bool
+    {
+        $foreign = $this->getForeignEntity($entity);
+
+        if (!$foreign) {
+            return false;
+        }
+
+        return $this->defaultAccessChecker->checkEntityStream($user, $foreign, $data);
+    }
+}