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<?php |
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namespace Zenstruck\JWT\Signer; |
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use Zenstruck\JWT\Signer; |
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use Zenstruck\JWT\Signer\OpenSSL\Key; |
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use Zenstruck\JWT\Signer\OpenSSL\Keychain; |
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use Zenstruck\JWT\Signer\OpenSSL\PrivateKey; |
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use Zenstruck\JWT\Signer\OpenSSL\PublicKey; |
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/** |
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* @author Alessandro Nadalin <[email protected]> |
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* @author Kevin Bond <[email protected]> |
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*/ |
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abstract class OpenSSL implements Signer |
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{ |
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public function __construct() |
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{ |
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if (!extension_loaded('openssl')) { |
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throw new \RuntimeException('The openssl PHP extension must be enabled to use RSA/ECDSA signers'); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function sign($input, $key) |
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{ |
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if ($key instanceof Keychain) { |
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$key = $key->privateKey(); |
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} |
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if (!$key instanceof PrivateKey) { |
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$key = new PrivateKey($key); |
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} |
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$this->verifyType($key); |
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openssl_sign($input, $signature, $key->get(), $this->hashingAlgorithm()); |
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return $signature; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function verify($input, $signature, $key) |
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{ |
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if ($key instanceof Keychain) { |
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$key = $key->publicKey(); |
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} |
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if (!$key instanceof PublicKey) { |
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$key = new PublicKey($key); |
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} |
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$result = openssl_verify($input, $signature, $key->get(), $this->hashingAlgorithm()); |
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if (-1 === $result) { |
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throw new \RuntimeException('Unknown error during verification.'); |
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} |
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return (bool) $result; |
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} |
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/** |
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* @return int |
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*/ |
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abstract protected function hashingAlgorithm(); |
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/** |
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* @return int |
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*/ |
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abstract protected function allowedType(); |
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/** |
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* @param Key $key |
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*/ |
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private function verifyType(Key $key) |
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{ |
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if ($this->allowedType() !== $key->type()) { |
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throw new \InvalidArgumentException(sprintf('Invalid key type.')); |
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} |
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} |
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} |
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kbond /
php-jwt
