/usr/share/php/Symfony/Component/Security/Core/Encoder/EncoderFactory.php is in php-symfony-security-core 3.4.6+dfsg-1.
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/*
* 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\Core\Encoder;
/**
* A generic encoder factory implementation.
*
* @author Johannes M. Schmitt <schmittjoh@gmail.com>
*/
class EncoderFactory implements EncoderFactoryInterface
{
private $encoders;
public function __construct(array $encoders)
{
$this->encoders = $encoders;
}
/**
* {@inheritdoc}
*/
public function getEncoder($user)
{
$encoderKey = null;
if ($user instanceof EncoderAwareInterface && (null !== $encoderName = $user->getEncoderName())) {
if (!array_key_exists($encoderName, $this->encoders)) {
throw new \RuntimeException(sprintf('The encoder "%s" was not configured.', $encoderName));
}
$encoderKey = $encoderName;
} else {
foreach ($this->encoders as $class => $encoder) {
if ((is_object($user) && $user instanceof $class) || (!is_object($user) && (is_subclass_of($user, $class) || $user == $class))) {
$encoderKey = $class;
break;
}
}
}
if (null === $encoderKey) {
throw new \RuntimeException(sprintf('No encoder has been configured for account "%s".', is_object($user) ? get_class($user) : $user));
}
if (!$this->encoders[$encoderKey] instanceof PasswordEncoderInterface) {
$this->encoders[$encoderKey] = $this->createEncoder($this->encoders[$encoderKey]);
}
return $this->encoders[$encoderKey];
}
/**
* Creates the actual encoder instance.
*
* @return PasswordEncoderInterface
*
* @throws \InvalidArgumentException
*/
private function createEncoder(array $config)
{
if (isset($config['algorithm'])) {
$config = $this->getEncoderConfigFromAlgorithm($config);
}
if (!isset($config['class'])) {
throw new \InvalidArgumentException(sprintf('"class" must be set in %s.', json_encode($config)));
}
if (!isset($config['arguments'])) {
throw new \InvalidArgumentException(sprintf('"arguments" must be set in %s.', json_encode($config)));
}
$reflection = new \ReflectionClass($config['class']);
return $reflection->newInstanceArgs($config['arguments']);
}
private function getEncoderConfigFromAlgorithm($config)
{
switch ($config['algorithm']) {
case 'plaintext':
return array(
'class' => PlaintextPasswordEncoder::class,
'arguments' => array($config['ignore_case']),
);
case 'pbkdf2':
return array(
'class' => Pbkdf2PasswordEncoder::class,
'arguments' => array(
$config['hash_algorithm'],
$config['encode_as_base64'],
$config['iterations'],
$config['key_length'],
),
);
case 'bcrypt':
return array(
'class' => BCryptPasswordEncoder::class,
'arguments' => array($config['cost']),
);
case 'argon2i':
return array(
'class' => Argon2iPasswordEncoder::class,
'arguments' => array(),
);
}
return array(
'class' => MessageDigestPasswordEncoder::class,
'arguments' => array(
$config['algorithm'],
$config['encode_as_base64'],
$config['iterations'],
),
);
}
}
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