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<?php |
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namespace League\Tactician\Bundle\Middleware; |
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use League\Tactician\Exception\InvalidMiddlewareException; |
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use League\Tactician\Middleware; |
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use Symfony\Component\Security\Core\Authorization\AuthorizationCheckerInterface; |
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use Symfony\Component\Security\Core\Exception\AccessDeniedException; |
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class SecurityMiddleware implements Middleware |
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{ |
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/** |
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* Access denied behavior to drop the command if not allowed. |
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*/ |
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const DROP_COMMAND = 1; |
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/** |
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* Access denied behavior to throw an AccessDenied exception if not allowed. |
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* Default behavior. |
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*/ |
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const THROW_ACCESS_DENIED_EXCEPTION = 2; |
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/** |
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* @var int |
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*/ |
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private $accessDeniedBehavior; |
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/** |
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* @var AuthorizationCheckerInterface |
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*/ |
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private $authorizationChecker; |
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/** |
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* @param AuthorizationCheckerInterface $authorizationChecker |
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*/ |
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public function __construct(AuthorizationCheckerInterface $authorizationChecker, $accessDeniedBehavior = self::THROW_ACCESS_DENIED_EXCEPTION) { |
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$this->authorizationChecker = $authorizationChecker; |
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$this->accessDeniedBehavior = $accessDeniedBehavior; |
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if ($this->accessDeniedBehavior !== static::DROP_COMMAND && $this->accessDeniedBehavior !== static::THROW_ACCESS_DENIED_EXCEPTION) { |
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throw new InvalidMiddlewareException( |
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sprintf('The security middleware requires a valid accessDeniedBehavior, \'%s\' is not valid.', $this->accessDeniedBehavior) |
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); |
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} |
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} |
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/** |
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* @param object $command |
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* @param callable $next |
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* @return mixed |
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*/ |
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public function execute($command, callable $next) |
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{ |
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if ($this->authorizationChecker->isGranted('handle', $command)) { |
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return $next($command); |
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} elseif ($this->accessDeniedBehavior === static::THROW_ACCESS_DENIED_EXCEPTION) { |
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throw new AccessDeniedException( |
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sprintf('The current user is not allowed to handle command of type \'%s\'', get_class($command)) |
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); |
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} |
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} |
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} |
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thephpleague /
tactician-bundle
