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<?php |
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namespace SOG\Dashboard\Authentication; |
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use Symfony\Component\Security\Core\Authentication\Provider\AuthenticationProviderInterface; |
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use Symfony\Component\Security\Core\Authentication\Token\TokenInterface; |
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use Symfony\Component\Security\Core\Authentication\Token\UsernamePasswordToken; |
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use Symfony\Component\Security\Core\Exception\AuthenticationException; |
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use Symfony\Component\Security\Core\User\UserProviderInterface; |
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use Zend\Ldap\Exception\LdapException; |
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use Zend\Ldap\Ldap; |
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/** |
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* This class attempts the authentication of a given token using the LDAP resource. |
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* The implementation follows https://github.com/DerManoMann/ldap-auth-service-provider - thank you! |
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* |
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* Class LdapAuthenticationProvider |
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* @package SOG\Dashboard\Authentication |
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*/ |
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class LdapAuthenticationProvider implements AuthenticationProviderInterface |
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{ |
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/** |
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* @var Ldap The actual LDAP resource to call methods on |
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*/ |
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private $ldap; |
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/** |
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* @var UserProviderInterface The instance of our LDAP User Provider |
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*/ |
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private $user_provider; |
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/** |
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* LdapAuthenticationProvider constructor, set members. |
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* |
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* @param Ldap $ldap |
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* @param UserProviderInterface $user_provider |
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*/ |
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public function __construct(Ldap $ldap, UserProviderInterface $user_provider) |
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{ |
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$this->ldap = $ldap; |
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$this->user_provider = $user_provider; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function authenticate(TokenInterface $token) |
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{ |
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$user = $this->user_provider->loadUserByUsername($token->getUsername()); |
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if ($user && $this->checkLogin($token->getUsername(), $token->getCredentials())) { |
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$roles = array_unique(array_merge($token->getRoles(), $user->getRoles())); |
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return new UsernamePasswordToken($user, null, 'ldap', $roles); |
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} |
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throw new AuthenticationException('Der Login war nicht erfolgreich, bitte überprüfe deinen Benutzernamen und Passwort.'); |
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} |
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/** |
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* This method tries to authenticate the given user, the LDAP resource is then bound to this account. |
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* By calling `$ldap->bind()` (without parameters) afterwards, the resource is again bound to the privileged account. |
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* |
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* @param string $user The username to use for binding |
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* @param string $password The password to use for binding |
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* @return bool Returns true if the bind was successful, false otherwise. |
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*/ |
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private function checkLogin($user, $password) |
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{ |
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$success = false; |
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try { |
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$this->ldap->bind($user, $password); |
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$success = true; |
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} catch (LdapException $ex) { |
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$success = false; |
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} finally { |
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// rebind to privileged user |
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$this->ldap->bind(); |
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} |
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return $success; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function supports(TokenInterface $token) |
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{ |
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return ($token instanceof UsernamePasswordToken); |
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} |
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} |
studieren-ohne-grenzen /
dashboard
