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<?php |
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/** |
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* Spiral Framework. |
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* |
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* @license MIT |
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* @author Anton Titov (Wolfy-J) |
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*/ |
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declare(strict_types=1); |
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namespace Spiral\Security; |
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use Psr\Container\ContainerInterface; |
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use Spiral\Core\Container\SingletonInterface; |
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use Spiral\Security\Exception\RuleException; |
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use Spiral\Security\Rule\CallableRule; |
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/** |
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* Provides ability to request permissions rules based on it's name. Rules are being fetched from container. |
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*/ |
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final class RuleManager implements RulesInterface, SingletonInterface |
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{ |
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/** @var ContainerInterface */ |
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private $container = null; |
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/** @var array */ |
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private $rules = []; |
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/** |
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* @param ContainerInterface $container |
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*/ |
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public function __construct(ContainerInterface $container) |
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{ |
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$this->container = $container; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @return $this |
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*/ |
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public function set(string $name, $rule = null): RuleManager |
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{ |
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if (empty($rule)) { |
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$rule = $name; |
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} |
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if (!$this->validateRule($rule)) { |
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throw new RuleException("Unable to set rule '{$name}', invalid rule body"); |
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} |
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$this->rules[$name] = $rule; |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @return $this |
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*/ |
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public function remove(string $name): RuleManager |
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{ |
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if (!$this->has($name)) { |
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throw new RuleException("Undefined rule '{$name}'"); |
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} |
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unset($this->rules[$name]); |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function has(string $name): bool |
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{ |
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if (isset($this->rules[$name])) { |
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return true; |
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} |
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if (class_exists($name)) { |
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//We are allowing to use class names without direct registration |
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return true; |
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} |
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//Relying on container binding |
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return $this->container->has($name); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get(string $name): RuleInterface |
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{ |
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if (!$this->has($name)) { |
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throw new RuleException("Undefined rule '{$name}'"); |
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} |
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if (!isset($this->rules[$name])) { |
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//Rule represented as class name |
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$rule = $name; |
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} else { |
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$rule = $this->rules[$name]; |
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} |
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if ($rule instanceof RuleInterface) { |
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return $rule; |
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} |
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if (is_string($rule)) { |
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//We are expecting that rule points to |
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$rule = $this->container->get($rule); |
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if (!$rule instanceof RuleInterface) { |
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throw new RuleException(sprintf( |
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"Rule '%s' must point to RuleInterface, '%s' given", |
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$name, |
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!empty($rule) ? get_class($rule) : 'null' |
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)); |
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} |
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return $rule; |
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} |
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//We have to respond using RuleInterface (expecting that rule is callable) |
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return new CallableRule($rule); |
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} |
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/** |
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* Must return true if rule is valid. |
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* |
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* @param mixed $rule |
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* @return bool |
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*/ |
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private function validateRule($rule): bool |
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{ |
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if ($rule instanceof \Closure || $rule instanceof RuleInterface) { |
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return true; |
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} |
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if (is_array($rule)) { |
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return is_callable($rule, true); |
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} |
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if (is_string($rule) && class_exists($rule)) { |
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try { |
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$reflection = new \ReflectionClass($rule); |
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} catch (\ReflectionException $e) { |
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return false; |
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} |
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return $reflection->isSubclassOf(RuleInterface::class); |
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} |
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return false; |
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} |
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} |
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spiral /
framework
