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<?php |
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/* |
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* The MIT License (MIT) |
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* |
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* Copyright (c) 2014-2016 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; |
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use Assert\Assertion; |
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use Jose\Checker\CheckerManagerInterface; |
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use Jose\Object\JWEInterface; |
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use Jose\Object\JWKSetInterface; |
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use Jose\Object\JWSInterface; |
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use Psr\Log\LoggerInterface; |
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final class JWTLoader |
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{ |
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/** |
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* @var \Jose\LoaderInterface |
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*/ |
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private $loader; |
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/** |
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* @var \Jose\Checker\CheckerManagerInterface |
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*/ |
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private $checker_manager; |
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/** |
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* @var \Jose\DecrypterInterface|null |
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*/ |
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private $decrypter = null; |
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/** |
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* @var \Jose\VerifierInterface |
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*/ |
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private $verifier; |
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/** |
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* JWTLoader constructor. |
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* |
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* @param \Jose\Checker\CheckerManagerInterface $checker_manager |
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* @param \Jose\VerifierInterface $verifier |
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* @param \Psr\Log\LoggerInterface|null $logger |
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*/ |
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public function __construct(CheckerManagerInterface $checker_manager, VerifierInterface $verifier, LoggerInterface $logger = null) |
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{ |
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$this->checker_manager = $checker_manager; |
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$this->verifier = $verifier; |
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$this->loader = new Loader(); |
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if (null !== $logger) { |
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$this->loader->enableLogging($logger); |
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} |
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} |
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/** |
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* @param \Jose\DecrypterInterface $decrypter |
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*/ |
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public function enableDecryptionSupport(DecrypterInterface $decrypter) |
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{ |
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$this->decrypter = $decrypter; |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getSupportedSignatureAlgorithms() |
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{ |
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return $this->verifier->getSupportedSignatureAlgorithms(); |
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} |
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/** |
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* @return bool |
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*/ |
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public function isDecryptionSupportEnabled() |
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{ |
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return null !== $this->decrypter; |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getSupportedKeyEncryptionAlgorithms() |
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{ |
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return false === $this->isDecryptionSupportEnabled() ? [] : $this->decrypter->getSupportedKeyEncryptionAlgorithms(); |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getSupportedContentEncryptionAlgorithms() |
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{ |
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return false === $this->isDecryptionSupportEnabled() ? [] : $this->decrypter->getSupportedContentEncryptionAlgorithms(); |
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} |
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/** |
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* @return string[] |
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*/ |
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public function getSupportedCompressionMethods() |
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{ |
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return false === $this->isDecryptionSupportEnabled() ? [] : $this->decrypter->getSupportedCompressionMethods(); |
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} |
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/** |
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* @param string $assertion |
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* @param \Jose\Object\JWKSetInterface|null $encryption_key_set |
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* @param bool $is_encryption_required |
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* |
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* @return \Jose\Object\JWSInterface |
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*/ |
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public function load($assertion, JWKSetInterface $encryption_key_set = null, $is_encryption_required = false) |
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{ |
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Assertion::string($assertion); |
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Assertion::boolean($is_encryption_required); |
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$jwt = $this->loader->load($assertion); |
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if ($jwt instanceof JWEInterface) { |
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Assertion::notNull($encryption_key_set, 'Encryption key set is not available.'); |
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Assertion::true($this->isDecryptionSupportEnabled(), 'Encryption support is not enabled.'); |
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Assertion::inArray($jwt->getSharedProtectedHeader('alg'), $this->getSupportedKeyEncryptionAlgorithms(), sprintf('The key encryption algorithm "%s" is not allowed.', $jwt->getSharedProtectedHeader('alg'))); |
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Assertion::inArray($jwt->getSharedProtectedHeader('enc'), $this->getSupportedContentEncryptionAlgorithms(), sprintf('The content encryption algorithm "%s" is not allowed or not supported.', $jwt->getSharedProtectedHeader('enc'))); |
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$jwt = $this->decryptAssertion($jwt, $encryption_key_set); |
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} elseif (true === $is_encryption_required) { |
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throw new \InvalidArgumentException('The assertion must be encrypted.'); |
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} |
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return $jwt; |
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} |
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/** |
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* @param \Jose\Object\JWSInterface $jws |
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* @param \Jose\Object\JWKSetInterface $signature_key_set |
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* @param string|null $detached_payload |
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* |
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* @return int |
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*/ |
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public function verify(JWSInterface $jws, JWKSetInterface $signature_key_set, $detached_payload = null) |
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{ |
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Assertion::inArray($jws->getSignature(0)->getProtectedHeader('alg'), $this->getSupportedSignatureAlgorithms(), sprintf('The signature algorithm "%s" is not supported or not allowed.', $jws->getSignature(0)->getProtectedHeader('alg'))); |
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$index = null; |
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$this->verifier->verifyWithKeySet($jws, $signature_key_set, $detached_payload, $index); |
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Assertion::notNull($index, 'JWS signature(s) verification failed.'); |
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$this->checker_manager->checkJWS($jws, $index); |
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return $index; |
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} |
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/** |
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* @param \Jose\Object\JWEInterface $jwe |
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* @param \Jose\Object\JWKSetInterface $encryption_key_set |
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* |
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* @return \Jose\Object\JWSInterface |
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*/ |
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private function decryptAssertion(JWEInterface $jwe, JWKSetInterface $encryption_key_set) |
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{ |
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$this->decrypter->decryptUsingKeySet($jwe, $encryption_key_set); |
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$jws = $this->loader->load($jwe->getPayload()); |
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Assertion::isInstanceOf($jws, JWSInterface::class, 'The encrypted assertion does not contain a JWS.'); |
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return $jws; |
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} |
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} |
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Spomky-Labs /
jose
Loading history...
It seems like you allow that null is being passed for a parameter, however the function which is called does not seem to accept null.
We recommend to add an additional type check (or disallow null for the parameter):