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Viewing File: /opt/alt/php54/usr/share/pear/Symfony/Component/Security/Acl/Domain/DoctrineAclCache.php
<?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;
}
}
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