ChainServiceFactory.php 1.35 KB
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<?php
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namespace UnicaenAuth\Authentication\Storage;

use Zend\ServiceManager\FactoryInterface;
use Zend\ServiceManager\ServiceLocatorInterface;

/**
 * Description of ChainAuthenticationStorageServiceFactory
 *
 * @author Bertrand GAUTHIER <bertrand.gauthier at unicaen.fr>
 */
class ChainServiceFactory implements FactoryInterface
{
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    private $mandatoryStorages = [
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        200 => 'UnicaenAuth\Authentication\Storage\Ldap',
        100 => 'UnicaenAuth\Authentication\Storage\Db',
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        76  => 'UnicaenAuth\Authentication\Storage\ShibSimulatorStorage',
        75  => 'UnicaenAuth\Authentication\Storage\Shib',
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    ];

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    protected $storages = [];

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    /**
     * Create service
     *
     * @param ServiceLocatorInterface $serviceLocator
     * @return mixed
     */
    public function createService(ServiceLocatorInterface $serviceLocator)
    {
        $chain = new Chain();
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        $storages = $this->mandatoryStorages + $this->storages;
        krsort($storages);

        foreach ($storages as $priority => $name) {
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            $storage = $serviceLocator->get($name);
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            $chain->getEventManager()->attach('read', [$storage, 'read'], $priority);
            $chain->getEventManager()->attach('write', [$storage, 'write'], $priority);
            $chain->getEventManager()->attach('clear', [$storage, 'clear'], $priority);
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        }
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        return $chain;
    }
}