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<?php |
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declare(strict_types=1); |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2019 Spomky-Labs |
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* |
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* This software may be modified and distributed under the terms |
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* of the MIT license. See the LICENSE file for details. |
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*/ |
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namespace Jose\Component\Checker; |
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/** |
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* This class is a header parameter and claim checker. |
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* When the "aud" header parameter or claim is present, it will check if the value is within the allowed ones. |
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*/ |
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final class AudienceChecker implements ClaimChecker, HeaderChecker |
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{ |
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private const CLAIM_NAME = 'aud'; |
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/** |
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* @var bool |
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*/ |
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private $protectedHeader = false; |
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/** |
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* @var string |
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*/ |
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private $audience; |
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public function __construct(string $audience, bool $protectedHeader = false) |
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{ |
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$this->audience = $audience; |
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$this->protectedHeader = $protectedHeader; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function checkClaim($value): void |
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{ |
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$this->checkValue($value, InvalidClaimException::class); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function checkHeader($value): void |
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{ |
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$this->checkValue($value, InvalidHeaderException::class); |
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} |
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public function supportedClaim(): string |
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{ |
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return self::CLAIM_NAME; |
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} |
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public function supportedHeader(): string |
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{ |
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return self::CLAIM_NAME; |
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} |
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public function protectedHeaderOnly(): bool |
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{ |
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return $this->protectedHeader; |
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} |
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/** |
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* @param mixed $value |
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* |
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* @throws InvalidClaimException if the claim is invalid |
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* @throws InvalidHeaderException if the header is invalid |
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*/ |
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private function checkValue($value, string $class): void |
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{ |
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if (\is_string($value) && $value !== $this->audience) { |
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throw new $class('Bad audience.', self::CLAIM_NAME, $value); |
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} |
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if (\is_array($value) && !\in_array($this->audience, $value, true)) { |
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throw new $class('Bad audience.', self::CLAIM_NAME, $value); |
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} |
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if (!\is_array($value) && !\is_string($value)) { |
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throw new $class('Bad audience.', self::CLAIM_NAME, $value); |
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} |
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} |
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} |
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