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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 LogicException; |
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use RuntimeException; |
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class CryptKey |
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{ |
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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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/** |
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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 $keyPermissionsCheck |
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*/ |
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public function __construct($keyPath, $passPhrase = null, $keyPermissionsCheck = true) |
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{ |
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if ($rsaMatch = preg_match(static::RSA_KEY_PATTERN, $keyPath)) { |
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$keyPath = $this->saveKeyToFile($keyPath); |
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} elseif ($rsaMatch === false) { |
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throw new \RuntimeException( |
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sprintf('PCRE error [%d] encountered during key match attempt', preg_last_error()) |
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); |
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} |
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if (strpos($keyPath, 'file://') !== 0) { |
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$keyPath = 'file://' . $keyPath; |
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} |
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if (!file_exists($keyPath) || !is_readable($keyPath)) { |
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throw new LogicException(sprintf('Key path "%s" does not exist or is not readable', $keyPath)); |
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} |
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if ($keyPermissionsCheck === true) { |
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// Verify the permissions of the key |
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$keyPathPerms = decoct(fileperms($keyPath) & 0777); |
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if (in_array($keyPathPerms, ['400', '440', '600', '640', '660'], true) === false) { |
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trigger_error(sprintf( |
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'Key file "%s" permissions are not correct, recommend changing to 600 or 660 instead of %s', |
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$keyPath, |
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$keyPathPerms |
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), E_USER_NOTICE); |
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} |
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} |
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$this->keyPath = $keyPath; |
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$this->passPhrase = $passPhrase; |
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} |
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/** |
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* @param string $key |
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* |
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* @throws RuntimeException |
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* |
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* @return string |
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*/ |
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private function saveKeyToFile($key) |
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{ |
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$tmpDir = sys_get_temp_dir(); |
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$keyPath = $tmpDir . '/' . sha1($key) . '.key'; |
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if (file_exists($keyPath)) { |
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return 'file://' . $keyPath; |
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} |
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if (file_put_contents($keyPath, $key) === false) { |
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// @codeCoverageIgnoreStart |
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throw new RuntimeException(sprintf('Unable to write key file to temporary directory "%s"', $tmpDir)); |
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// @codeCoverageIgnoreEnd |
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} |
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if (chmod($keyPath, 0600) === false) { |
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// @codeCoverageIgnoreStart |
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throw new RuntimeException(sprintf('The key file "%s" file mode could not be changed with chmod to 600', $keyPath)); |
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// @codeCoverageIgnoreEnd |
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} |
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return 'file://' . $keyPath; |
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} |
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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
