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<?php declare(strict_types=1); /* * The MIT License (MIT) * * Copyright (c) 2014-2020 Spomky-Labs * * This software may be modified and distributed under the terms * of the MIT license. See the LICENSE file for details. */ namespace Jose\Component\Signature; use function array_key_exists; use InvalidArgumentException; class Signature { /** * @var null|string */ private $encodedProtectedHeader; /** * @var array */ private $protectedHeader; /** * @var array */ private $header; /** * @var string */ private $signature; public function __construct(string $signature, array $protectedHeader, ?string $encodedProtectedHeader, array $header) { $this->protectedHeader = null === $encodedProtectedHeader ? [] : $protectedHeader; $this->encodedProtectedHeader = $encodedProtectedHeader; $this->signature = $signature; $this->header = $header; } /** * The protected header associated with the signature. */ public function getProtectedHeader(): array { return $this->protectedHeader; } /** * The unprotected header associated with the signature. */ public function getHeader(): array { return $this->header; } /** * The protected header associated with the signature. */ public function getEncodedProtectedHeader(): ?string { return $this->encodedProtectedHeader; } /** * Returns the value of the protected header of the specified key. * * @param string $key The key * * @throws InvalidArgumentException if the header parameter does not exist * * @return null|mixed Header value */ public function getProtectedHeaderParameter(string $key) { if ($this->hasProtectedHeaderParameter($key)) { return $this->getProtectedHeader()[$key]; } throw new InvalidArgumentException(sprintf('The protected header "%s" does not exist', $key)); } /** * Returns true if the protected header has the given parameter. * * @param string $key The key */ public function hasProtectedHeaderParameter(string $key): bool { return array_key_exists($key, $this->getProtectedHeader()); } /** * Returns the value of the unprotected header of the specified key. * * @param string $key The key * * @return null|mixed Header value */ public function getHeaderParameter(string $key) { if ($this->hasHeaderParameter($key)) { return $this->header[$key]; } throw new InvalidArgumentException(sprintf('The header "%s" does not exist', $key)); } /** * Returns true if the unprotected header has the given parameter. * * @param string $key The key */ public function hasHeaderParameter(string $key): bool { return array_key_exists($key, $this->header); } /** * Returns the value of the signature. */ public function getSignature(): string { return $this->signature; } }