Ubuntu

isValidSalt($salt)) { // only used for testing Option::set(self::OPTION_TAGMANAGER_SALT, $salt); } elseif (!empty($salt)) { throw new \Exception('Invalid salt!'); } } private function isValidSalt($salt) { return !empty($salt) && strlen($salt) >= self::SALT_LENGTH; } public function generateSaltIfNeeded() { $existingSalt = Option::get(self::OPTION_TAGMANAGER_SALT); // we do not use SettingsPiwik::getSalt() because the salt may be used in a publicly visible key // and we want to make sure that if someone was able to bruteforce/calculate the salt, then we do not expose // the original settingspiwik salt if ($this->isValidSalt($existingSalt)) { return $existingSalt; } $salt = Common::generateUniqId(); $salt = substr($salt, 0, 20); $salt .= Common::getRandomString(self::SALT_LENGTH - strlen($salt), $alphabet = "abcdefghijklmnoprstuvwxyz{}[]!?-_ABCDEFGHIJKLMNOPRSTUVWXYZ0123456789"); Option::set(self::OPTION_TAGMANAGER_SALT, $salt); return $salt; } public function getSalt() { $salt = Option::get(self::OPTION_TAGMANAGER_SALT); if (empty($salt)) { $salt = self::generateSaltIfNeeded(); } return $salt; } public function removeSalt() { Option::delete(self::OPTION_TAGMANAGER_SALT); } }