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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. / namespace Symfony\Component\Security\Acl\Domain; use Doctrine\Common\Cache\Cache; use Symfony\Component\Security\Acl\Model\AclCacheInterface; use Symfony\Component\Security\Acl\Model\AclInterface; use Symfony\Component\Security\Acl\Model\ObjectIdentityInterface; use Symfony\Component\Security\Acl\Model\PermissionGrantingStrategyInterface; /* * This class is a wrapper around the actual cache implementation. * * @author Johannes M. Schmitt <schmittjoh@gmail.com> / class DoctrineAclCache implements AclCacheInterface { const PREFIX = 'sf2_acl_'; private $cache; private $prefix; private $permissionGrantingStrategy; /* * Constructor * * @param Cache $cache * @param PermissionGrantingStrategyInterface $permissionGrantingStrategy * @param string $prefix * * @throws \InvalidArgumentException / public function __construct(Cache $cache, PermissionGrantingStrategyInterface $permissionGrantingStrategy, $prefix = self::PREFIX) { if (0 === strlen($prefix)) { throw new \InvalidArgumentException('$prefix cannot be empty.'); } $this->cache = $cache; $this->permissionGrantingStrategy = $permissionGrantingStrategy; $this->prefix = $prefix; } /* * {@inheritDoc} / public function clearCache() { $this->cache->deleteByPrefix($this->prefix); } /* * {@inheritDoc} / public function evictFromCacheById($aclId) { $lookupKey = $this->getAliasKeyForIdentity($aclId); if (!$this->cache->contains($lookupKey)) { return; } $key = $this->cache->fetch($lookupKey); if ($this->cache->contains($key)) { $this->cache->delete($key); } $this->cache->delete($lookupKey); } /* * {@inheritDoc} / public function evictFromCacheByIdentity(ObjectIdentityInterface $oid) { $key = $this->getDataKeyByIdentity($oid); if (!$this->cache->contains($key)) { return; } $this->cache->delete($key); } /* * {@inheritDoc} / public function getFromCacheById($aclId) { $lookupKey = $this->getAliasKeyForIdentity($aclId); if (!$this->cache->contains($lookupKey)) { return null; } $key = $this->cache->fetch($lookupKey); if (!$this->cache->contains($key)) { $this->cache->delete($lookupKey); return null; } return $this->unserializeAcl($this->cache->fetch($key)); } /* * {@inheritDoc} / public function getFromCacheByIdentity(ObjectIdentityInterface $oid) { $key = $this->getDataKeyByIdentity($oid); if (!$this->cache->contains($key)) { return null; } return $this->unserializeAcl($this->cache->fetch($key)); } /* * {@inheritDoc} / public function putInCache(AclInterface $acl) { if (null === $acl->getId()) { throw new \InvalidArgumentException('Transient ACLs cannot be cached.'); } if (null !== $parentAcl = $acl->getParentAcl()) { $this->putInCache($parentAcl); } $key = $this->getDataKeyByIdentity($acl->getObjectIdentity()); $this->cache->save($key, serialize($acl)); $this->cache->save($this->getAliasKeyForIdentity($acl->getId()), $key); } /* * Unserializes the ACL. * * @param string $serialized * @return AclInterface / private function unserializeAcl($serialized) { $acl = unserialize($serialized); if (null !== $parentId = $acl->getParentAcl()) { $parentAcl = $this->getFromCacheById($parentId); if (null === $parentAcl) { return null; } $acl->setParentAcl($parentAcl); } $reflectionProperty = new \ReflectionProperty($acl, 'permissionGrantingStrategy'); $reflectionProperty->setAccessible(true); $reflectionProperty->setValue($acl, $this->permissionGrantingStrategy); $reflectionProperty->setAccessible(false); $aceAclProperty = new \ReflectionProperty('Symfony\Component\Security\Acl\Domain\Entry', 'acl'); $aceAclProperty->setAccessible(true); foreach ($acl->getObjectAces() as $ace) { $aceAclProperty->setValue($ace, $acl); } foreach ($acl->getClassAces() as $ace) { $aceAclProperty->setValue($ace, $acl); } $aceClassFieldProperty = new \ReflectionProperty($acl, 'classFieldAces'); $aceClassFieldProperty->setAccessible(true); foreach ($aceClassFieldProperty->getValue($acl) as $aces) { foreach ($aces as $ace) { $aceAclProperty->setValue($ace, $acl); } } $aceClassFieldProperty->setAccessible(false); $aceObjectFieldProperty = new \ReflectionProperty($acl, 'objectFieldAces'); $aceObjectFieldProperty->setAccessible(true); foreach ($aceObjectFieldProperty->getValue($acl) as $aces) { foreach ($aces as $ace) { $aceAclProperty->setValue($ace, $acl); } } $aceObjectFieldProperty->setAccessible(false); $aceAclProperty->setAccessible(false); return $acl; } /* * Returns the key for the object identity * * @param ObjectIdentityInterface $oid * @return string / private function getDataKeyByIdentity(ObjectIdentityInterface $oid) { return $this->prefix.md5($oid->getType()).sha1($oid->getType()) .'_'.md5($oid->getIdentifier()).sha1($oid->getIdentifier()); } /* * Returns the alias key for the object identity key * * @param string $aclId * @return string */ private function getAliasKeyForIdentity($aclId) { return $this->prefix.$aclId; } }