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<?php |
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/** |
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* Linna Framework. |
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* |
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* @author Sebastian Rapetti <[email protected]> |
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* @copyright (c) 2018, Sebastian Rapetti |
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* @license http://opensource.org/licenses/MIT MIT License |
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*/ |
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declare(strict_types=1); |
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namespace Linna\Authentication; |
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use Linna\Session\Session; |
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use Linna\Shared\ClassOptionsTrait; |
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/** |
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* Extend basic user authentication system with more security checks. |
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*/ |
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class EnhancedAuthentication extends Authentication |
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{ |
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use ClassOptionsTrait; |
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/** |
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* @var array An associative array containing options |
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*/ |
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protected $options = [ |
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'maxAttemptsForUserName' => 5, |
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'maxAttemptsForSessionId' => 10, |
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'maxAttemptsForIpAddress' => 20, |
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'maxAttemptsForSecond' => 40, |
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'banTimeInSeconds' => 900 //15 minutes |
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]; |
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/** |
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* @var EnhancedAuthenticationMapperInterface Enhanced Authentication Mapper |
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*/ |
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private $enhancedAuthenticationMapper; |
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/** |
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* Class Constructor |
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* |
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* @param Session $session |
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* @param Password $password |
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* @param EnhancedAuthenticationMapperInterface $enhancedAuthenticationMapper |
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* @param array $options |
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*/ |
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public function __construct( |
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Session $session, |
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Password $password, |
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EnhancedAuthenticationMapperInterface $enhancedAuthenticationMapper, |
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array $options = [] |
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) { |
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parent::__construct($session, $password); |
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$this->enhancedAuthenticationMapper = $enhancedAuthenticationMapper; |
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//set options |
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$this->setOptions($options); |
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} |
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/** |
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* Return how many attemps are left for incorrect password. |
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* |
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* @param string $userName |
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* |
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* @return int |
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*/ |
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public function getAttemptsLeftWithSameUser(string $userName): int |
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{ |
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$attemptsLeft = $this->options['maxAttemptsForUserName'] - $this->enhancedAuthenticationMapper->fetchAttemptsWithSameUser($userName, $this->options['banTimeInSeconds']); |
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//casting to int second param for avoid strange things with |
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//max return value |
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//http://php.net/manual/en/function.max.php |
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return max(0, (int) $attemptsLeft); |
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} |
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/** |
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* Return how many attemps are left for same session id. |
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* |
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* @param string $sessionId |
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* |
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* @return int |
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*/ |
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public function getAttemptsLeftWithSameSession(string $sessionId): int |
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{ |
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$attemptsLeft = $this->options['maxAttemptsForSessionId'] - $this->enhancedAuthenticationMapper->fetchAttemptsWithSameSession($sessionId, $this->options['banTimeInSeconds']); |
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return max(0, (int) $attemptsLeft); |
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} |
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/** |
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* Return how many attemps are left for same ip. |
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* |
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* @param string $ipAddress |
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* |
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* @return int |
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*/ |
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public function getAttemptsLeftWithSameIp(string $ipAddress): int |
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{ |
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$attemptsLeft = $this->options['maxAttemptsForIpAddress'] - $this->enhancedAuthenticationMapper->fetchAttemptsWithSameIp($ipAddress, $this->options['banTimeInSeconds']); |
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return max(0, (int) $attemptsLeft); |
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} |
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/** |
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* Check if an user is banned from do login. |
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* |
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* @param string $userName |
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* |
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* @return bool |
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*/ |
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public function isUserBanned(string $userName): bool |
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{ |
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return !$this->getAttemptsLeftWithSameUser($userName); |
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} |
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/** |
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* Check if a session id is banned from do login. |
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* |
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* @param string $sessionId |
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* |
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* @return bool |
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*/ |
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public function isSessionBanned(string $sessionId): bool |
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{ |
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return !$this->getAttemptsLeftWithSameSession($sessionId); |
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} |
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/** |
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* Check if an ip address is banned from do login. |
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* |
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* @param string $ipAddress |
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* |
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* @return bool |
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*/ |
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public function isIpBanned(string $ipAddress): bool |
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{ |
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return !$this->getAttemptsLeftWithSameIp($ipAddress); |
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} |
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} |
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linna /
framework
