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<?php |
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/** |
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* Cryptography key holder. |
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* |
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* @author Julián Gutiérrez <[email protected]> |
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* @copyright Copyright (c) Alex Bilbie |
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* @license http://mit-license.org/ |
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* |
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* @link https://github.com/thephpleague/oauth2-server |
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*/ |
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namespace League\OAuth2\Server; |
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use Lcobucci\JWT\Signer\Key; |
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use Lcobucci\JWT\Signer\Key\InMemory; |
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use Lcobucci\JWT\Signer\Key\LocalFileReference; |
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use LogicException; |
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class CryptKey |
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{ |
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/** @deprecated left for backward compatibility check */ |
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const RSA_KEY_PATTERN = |
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'/^(-----BEGIN (RSA )?(PUBLIC|PRIVATE) KEY-----)\R.*(-----END (RSA )?(PUBLIC|PRIVATE) KEY-----)\R?$/s'; |
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private const FILE_PREFIX = 'file://'; |
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/** |
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* @var Key |
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*/ |
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protected $key; |
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/** |
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* @var string |
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*/ |
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protected $keyPath; |
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/** |
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* @var null|string |
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*/ |
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protected $passPhrase; |
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/** |
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* @param string $keyPath |
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* @param null|string $passPhrase |
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* @param bool $keyPermissionsCheck |
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1 |
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*/ |
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public function __construct($keyPath, $passPhrase = null, $keyPermissionsCheck = true) |
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{ |
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$this->passPhrase = $passPhrase; |
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if (\strpos($keyPath, self::FILE_PREFIX) !== 0 && $this->isValidKey($keyPath, $this->passPhrase ?? '')) { |
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$contents = $keyPath; |
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$this->key = InMemory::plainText($keyPath, $this->passPhrase ?? ''); |
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$this->keyPath = ''; |
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// There's no file, so no need for permission check. |
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$keyPermissionsCheck = false; |
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} elseif (\is_file($keyPath)) { |
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if (\strpos($keyPath, self::FILE_PREFIX) !== 0) { |
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$keyPath = self::FILE_PREFIX . $keyPath; |
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} |
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if (!\is_readable($keyPath)) { |
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throw new LogicException(\sprintf('Key path "%s" does not exist or is not readable', $keyPath)); |
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} |
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$contents = \file_get_contents($keyPath); |
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$this->keyPath = $keyPath; |
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$this->key = LocalFileReference::file($this->keyPath, $this->passPhrase ?? ''); |
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if (!$this->isValidKey($contents, $this->passPhrase ?? '')) { |
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throw new LogicException('Unable to read key from file ' . $keyPath); |
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} |
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} else { |
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throw new LogicException('Unable to read key from file ' . $keyPath); |
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} |
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if ($keyPermissionsCheck === true) { |
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// Verify the permissions of the key |
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$keyPathPerms = \decoct(\fileperms($this->keyPath) & 0777); |
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if (\in_array($keyPathPerms, ['400', '440', '600', '640', '660'], true) === false) { |
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\trigger_error( |
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\sprintf( |
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'Key file "%s" permissions are not correct, recommend changing to 600 or 660 instead of %s', |
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$this->keyPath, |
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$keyPathPerms |
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), |
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E_USER_NOTICE |
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); |
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} |
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} |
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} |
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5 |
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/** |
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* Get key |
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* |
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* @return Key |
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*/ |
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public function getKey(): Key |
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{ |
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return $this->key; |
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} |
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/** |
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* Validate key contents. |
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* |
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* @param string $contents |
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* @param string $passPhrase |
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* |
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* @return bool |
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*/ |
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private function isValidKey($contents, $passPhrase) |
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{ |
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$pkey = \openssl_pkey_get_private($contents, $passPhrase) ?: \openssl_pkey_get_public($contents); |
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if ($pkey === false) { |
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return false; |
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} |
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$details = \openssl_pkey_get_details($pkey); |
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return $details !== false && \in_array( |
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$details['type'] ?? -1, |
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[OPENSSL_KEYTYPE_RSA, OPENSSL_KEYTYPE_EC], |
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true |
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); |
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} |
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1 |
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/** |
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* Retrieve key path. |
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* |
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* @return string |
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*/ |
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public function getKeyPath() |
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{ |
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return $this->keyPath; |
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} |
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/** |
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* Retrieve key pass phrase. |
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* |
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* @return null|string |
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*/ |
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public function getPassPhrase() |
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{ |
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return $this->passPhrase; |
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} |
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} |
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thephpleague /
oauth2-server
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