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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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namespace Spiral\Security; |
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use Spiral\Core\Component; |
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use Spiral\Security\Exceptions\GuardException; |
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/** |
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* Checks permissions using given actor. |
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*/ |
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class Guard extends Component implements GuardInterface |
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{ |
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/** |
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* @var PermissionsInterface |
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*/ |
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private $permissions = null; |
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/** |
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* @var ActorInterface|null |
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*/ |
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private $actor = null; |
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/** |
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* Session specific roles. |
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* |
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* @var array |
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*/ |
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private $roles = []; |
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/** |
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* @param PermissionsInterface $permissions |
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* @param ActorInterface $actor |
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* @param array $roles Session specific roles. |
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*/ |
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public function __construct( |
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PermissionsInterface $permissions, |
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ActorInterface $actor = null, |
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array $roles = [] |
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) { |
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$this->roles = $roles; |
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$this->actor = $actor; |
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$this->permissions = $permissions; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function allows(string $permission, array $context = []): bool |
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{ |
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foreach ($this->getRoles() as $role) { |
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if (!$this->permissions->hasRole($role)) { |
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continue; |
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} |
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$rule = $this->permissions->getRule($role, $permission); |
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//Checking our rule |
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return $rule->allows($this->getActor(), $permission, $context); |
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} |
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return false; |
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} |
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/** |
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* Currently active actor/session roles. |
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* |
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* @return array |
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* |
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* @throws GuardException |
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*/ |
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public function getRoles(): array |
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{ |
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return array_merge($this->roles, $this->getActor()->getRoles()); |
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} |
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/** |
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* Create instance of guard with session specific roles (existed roles will be droppped). |
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* |
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* @param array $roles |
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* |
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* @return self |
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*/ |
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public function withRoles(array $roles): Guard |
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{ |
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$guard = clone $this; |
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$guard->roles = $roles; |
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return $guard; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @throws GuardException |
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*/ |
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public function getActor(): ActorInterface |
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{ |
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if (empty($this->actor)) { |
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throw new GuardException("Unable to get Guard Actor, no value set"); |
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} |
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return $this->actor; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function withActor(ActorInterface $actor): GuardInterface |
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{ |
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$guard = clone $this; |
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$guard->actor = $actor; |
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return $guard; |
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} |
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} |
spiral /
components
