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<?php |
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namespace rhertogh\Yii2SecurityTxt\helpers\GPG; |
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use Crypt_GPG; |
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use Crypt_GPG_Exception; |
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use PEAR_Exception; |
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use rhertogh\Yii2SecurityTxt\helpers\GPG\enums\GPGDriver; |
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use rhertogh\Yii2SecurityTxt\helpers\GPG\traits\CryptGPGTrait; |
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use rhertogh\Yii2SecurityTxt\helpers\GPG\traits\GnupgExtensionTrait; |
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use yii\base\InvalidConfigException; |
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/** |
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* A helper class for the GNU Privacy Guard. |
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* It can run with either the Crypt_GPG package or the "gnupg" extension. |
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* |
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* @link https://packagist.org/packages/pear/crypt_gpg |
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* @link https://www.php.net/manual/en/book.gnupg.php |
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*/ |
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class GPGHelper |
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{ |
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use CryptGPGTrait; |
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use GnupgExtensionTrait; |
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/** @var GPGDriver|null Specifies the library to use. |
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* If `null` it will auto-detect which library to use in the following order: CryptGPG, GnupgExtension |
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*/ |
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public static GPGDriver|null $driver = null; |
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/** |
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* Sign a message. |
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* |
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* @throws InvalidConfigException |
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* @throws Crypt_GPG_Exception |
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* @throws PEAR_Exception |
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*/ |
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public static function sign(string $message, string $privateKey): string |
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{ |
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return match (static::determineDriver()) { |
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GPGDriver::CryptGPG => static::signViaCryptGPG($message, $privateKey), |
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GPGDriver::GnupgExtension => static::signViaGnupgExtension($message, $privateKey), |
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}; |
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} |
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/** |
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* @throws InvalidConfigException |
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*/ |
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protected static function determineDriver(): GPGDriver |
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{ |
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$driver = static::$driver; |
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if ($driver === null) { |
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if (class_exists(Crypt_GPG::class)) { |
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$driver = GPGDriver::CryptGPG; |
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} elseif (extension_loaded('gnupg')) { |
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$driver = GPGDriver::GnupgExtension; |
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} else { |
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throw new InvalidConfigException('Either the Crypt_GPG package (https://packagist.org/packages/pear/crypt_gpg)' |
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. ' or the "gnupg" extension (https://www.php.net/manual/en/book.gnupg.php) must be installed.'); |
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} |
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} else { |
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if ($driver === GPGDriver::CryptGPG) { |
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if (!class_exists(Crypt_GPG::class)) { |
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throw new InvalidConfigException('When using the Crypt_GPG package (https://packagist.org/packages/pear/crypt_gpg) it must be installed.'); |
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} |
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} elseif ($driver === GPGDriver::GnupgExtension) { |
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if (!extension_loaded('gnupg')) { |
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throw new InvalidConfigException('When using the "gnupg" extension (https://www.php.net/manual/en/book.gnupg.php) it must be installed.'); |
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} |
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} else { |
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throw new \LogicException('Unknown GPGDriver "' . $driver->name . '".'); |
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} |
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} |
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return $driver; |
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} |
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} |
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rhertogh /
yii2-security.txt
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