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<?php |
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declare(strict_types=1); |
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namespace RemotelyLiving\Doorkeeper; |
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use Psr\Log as PSRLog; |
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use RemotelyLiving\Doorkeeper\Features; |
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use RemotelyLiving\Doorkeeper\Logger; |
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use RemotelyLiving\Doorkeeper\Utilities; |
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final class Doorkeeper implements DoorkeeperInterface |
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{ |
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private Features\Set $featureSet; |
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private Utilities\RuntimeCache $runtimeCache; |
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private PSRLog\LoggerInterface $auditLog; |
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private ?RequestorInterface $requestor = null; |
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public function __construct( |
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Features\Set $featureSet, |
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Utilities\RuntimeCache $cache = null, |
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PSRLog\LoggerInterface $auditLog = null |
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) { |
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$this->featureSet = $featureSet; |
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$this->auditLog = $auditLog ?? new PSRLog\NullLogger(); |
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$this->runtimeCache = $cache ?? new Utilities\RuntimeCache(); |
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} |
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/** |
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* @throws \DomainException |
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*/ |
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public function setRequestor(RequestorInterface $requestor): void |
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{ |
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if ($this->requestor) { |
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throw new \DomainException('Requestor already set'); |
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} |
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$this->requestor = $requestor; |
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} |
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public function getRequestor(): ?RequestorInterface |
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{ |
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return $this->requestor; |
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} |
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public function grantsAccessTo(string $featureName): bool |
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{ |
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return $this->grantsAccessToRequestor($featureName, $this->requestor); |
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} |
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public function grantsAccessToRequestor(string $featureName, RequestorInterface $requestor = null): bool |
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{ |
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$logContext = [ |
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Logger\Processor::CONTEXT_KEY_REQUESTOR => $requestor, |
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Logger\Processor::FEATURE_ID => $featureName, |
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]; |
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if (!$this->featureSet->offsetExists($featureName)) { |
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$this->logAttempt('Access denied because feature does not exist.', $logContext); |
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return false; |
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} |
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$cache_key = md5(sprintf('%s:%s', $featureName, ($requestor) ? $requestor->getIdentityHash() : '')); |
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$fallback = function () use ($featureName, $requestor, $logContext): bool { |
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$feature = $this->featureSet->getFeatureByName($featureName); |
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if (!$feature->isEnabled()) { |
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$this->logAttempt('Access denied because feature is disabled.', $logContext); |
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return false; |
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} |
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if ($feature->isEnabled() && !$feature->getRules()) { |
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return true; |
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} |
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foreach ($feature->getRules() as $rule) { |
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if ($rule->canBeSatisfied($requestor)) { |
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$this->logAttempt('Access granted to feature', $logContext); |
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return true; |
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} |
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} |
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$this->logAttempt('Access denied to feature', $logContext); |
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return false; |
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}; |
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return (bool) $this->runtimeCache->get($cache_key, $fallback); |
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} |
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public function flushRuntimeCache(): void |
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{ |
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$this->runtimeCache->flush(); |
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} |
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private function logAttempt(string $message, array $context): void |
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{ |
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$this->auditLog->info($message, $context); |
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} |
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} |
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remotelyliving /
doorkeeper
