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AclCache.php
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AclCache.php
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<?php
namespace Doctrine\Bundle\DoctrineCacheBundle\Acl\Model;
use Doctrine\Common\Cache\CacheProvider;
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 Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Fabien Potencier <fabien@symfony.com>
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class AclCache implements AclCacheInterface
{
/**
* @var \Doctrine\Common\Cache\CacheProvider
*/
private $cache;
/**
* @var \Symfony\Component\Security\Acl\Model\PermissionGrantingStrategyInterface
*/
private $permissionGrantingStrategy;
/**
* Constructor
*
* @param \Doctrine\Common\Cache\CacheProvider $cache
* @param \Symfony\Component\Security\Acl\Model\PermissionGrantingStrategyInterface $permissionGrantingStrategy
*/
public function __construct(CacheProvider $cache, PermissionGrantingStrategyInterface $permissionGrantingStrategy)
{
$this->cache = $cache;
$this->permissionGrantingStrategy = $permissionGrantingStrategy;
}
/**
* {@inheritdoc}
*/
public function evictFromCacheById($primaryKey)
{
if ( ! $this->cache->contains($primaryKey)) {
return;
}
$key = $this->cache->fetch($primaryKey);
$this->cache->delete($primaryKey);
$this->evictFromCacheByKey($key);
}
/**
* {@inheritdoc}
*/
public function evictFromCacheByIdentity(ObjectIdentityInterface $oid)
{
$key = $this->createKeyFromIdentity($oid);
$this->evictFromCacheByKey($key);
}
/**
* {@inheritdoc}
*/
public function getFromCacheById($primaryKey)
{
if ( ! $this->cache->contains($primaryKey)) {
return null;
}
$key = $this->cache->fetch($primaryKey);
$acl = $this->getFromCacheByKey($key);
if ( ! $acl) {
$this->cache->delete($primaryKey);
return null;
}
return $acl;
}
/**
* {@inheritdoc}
*/
public function getFromCacheByIdentity(ObjectIdentityInterface $oid)
{
$key = $this->createKeyFromIdentity($oid);
return $this->getFromCacheByKey($key);
}
/**
* {@inheritdoc}
*/
public function putInCache(AclInterface $acl)
{
if (null === $acl->getId()) {
throw new \InvalidArgumentException('Transient ACLs cannot be cached.');
}
$parentAcl = $acl->getParentAcl();
if (null !== $parentAcl) {
$this->putInCache($parentAcl);
}
$key = $this->createKeyFromIdentity($acl->getObjectIdentity());
$this->cache->save($key, serialize($acl));
$this->cache->save($acl->getId(), $key);
}
/**
* {@inheritdoc}
*/
public function clearCache()
{
return $this->cache->deleteAll();
}
/**
* Unserialize a given ACL.
*
* @param string $serialized
*
* @return \Symfony\Component\Security\Acl\Model\AclInterface
*/
private function unserializeAcl($serialized)
{
$acl = unserialize($serialized);
$parentId = $acl->getParentAcl();
if (null !== $parentId) {
$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 \Symfony\Component\Security\Acl\Model\ObjectIdentityInterface $oid
*
* @return string
*/
private function createKeyFromIdentity(ObjectIdentityInterface $oid)
{
return $oid->getType() . '_' . $oid->getIdentifier();
}
/**
* Removes an ACL from the cache
*
* @param string $key
*/
private function evictFromCacheByKey($key)
{
if ( ! $this->cache->contains($key)) {
return;
}
$this->cache->delete($key);
}
/**
* Retrieves an ACL for the given key from the cache
*
* @param string $key
*
* @return null|\Symfony\Component\Security\Acl\Model\AclInterface
*/
private function getFromCacheByKey($key)
{
if ( ! $this->cache->contains($key)) {
return null;
}
$serialized = $this->cache->fetch($key);
return $this->unserializeAcl($serialized);
}
}