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<?php |
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namespace AerialShip\SamlSPBundle\Security\Core\Authentication\Provider; |
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use AerialShip\SamlSPBundle\Bridge\SamlSpInfo; |
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use AerialShip\SamlSPBundle\Security\Core\Authentication\Token\SamlSpToken; |
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use AerialShip\SamlSPBundle\Security\Core\User\UserManagerInterface; |
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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\Exception\AuthenticationException; |
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use Symfony\Component\Security\Core\Exception\AuthenticationServiceException; |
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use Symfony\Component\Security\Core\Exception\UsernameNotFoundException; |
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use Symfony\Component\Security\Core\User\User; |
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use Symfony\Component\Security\Core\User\UserCheckerInterface; |
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use Symfony\Component\Security\Core\User\UserInterface; |
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class SamlSpAuthenticationProvider implements AuthenticationProviderInterface |
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{ |
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/** @var string */ |
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protected $providerKey; |
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/** @var null|UserManagerInterface */ |
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protected $userProvider; |
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/** @var null|\Symfony\Component\Security\Core\User\UserCheckerInterface */ |
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protected $userChecker; |
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/** @var bool */ |
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protected $createIfNotExists; |
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public function __construct( |
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$providerKey, |
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UserManagerInterface $userProvider = null, |
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UserCheckerInterface $userChecker = null, |
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$createIfNotExists = false |
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) { |
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if (null !== $userProvider && null === $userChecker) { |
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throw new \InvalidArgumentException('$userChecker cannot be null, if $userProvider is not null'); |
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} |
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if (null == $userProvider && $createIfNotExists) { |
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throw new \InvalidArgumentException('$createIfNotExists cannot be true, if $userProvider is null'); |
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} |
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$this->providerKey = $providerKey; |
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$this->userProvider = $userProvider; |
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$this->userChecker = $userChecker; |
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$this->createIfNotExists = (bool)$createIfNotExists; |
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} |
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/** |
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* Attempts to authenticate a TokenInterface object. |
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* @param TokenInterface $token The TokenInterface instance to authenticate |
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* @return TokenInterface An authenticated TokenInterface instance, never null |
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* @throws AuthenticationException if the authentication fails |
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*/ |
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public function authenticate(TokenInterface $token) |
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{ |
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if (false == $this->supports($token)) { |
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return null; |
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} |
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try { |
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$user = $this->getUser($token); |
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/** @var $token SamlSpToken */ |
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return $this->createAuthenticatedToken( |
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$token->getSamlSpInfo(), |
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$token->getAttributes(), |
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$user instanceof UserInterface ? $user->getRoles() : array(), |
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$user |
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); |
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} catch (AuthenticationException $ex) { |
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throw $ex; |
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} catch (\Exception $ex) { |
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throw new AuthenticationServiceException($ex->getMessage(), (int) $ex->getCode(), $ex); |
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} |
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} |
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/** |
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* @param SamlSpToken $token |
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* @return mixed|UserInterface |
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*/ |
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protected function getUser(SamlSpToken $token) |
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{ |
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if ($token->getUser() instanceof UserInterface) { |
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$result = $token->getUser(); |
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} else if ($this->userProvider) { |
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$result = $this->getProviderUser($token); |
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} else { |
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$result = $this->getDefaultUser($token); |
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} |
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return $result; |
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} |
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/** |
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* Checks whether this provider supports the given token. |
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* @param \Symfony\Component\Security\Core\Authentication\Token\TokenInterface $token |
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* @return bool true if the implementation supports the Token, false otherwise |
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*/ |
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public function supports(TokenInterface $token) |
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{ |
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return $token instanceof SamlSpToken && $this->providerKey === $token->getProviderKey(); |
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} |
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/** |
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* @param \AerialShip\SamlSPBundle\Bridge\SamlSpInfo $samlInfo |
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* @param array $attributes |
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* @param array $roles |
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* @param mixed $user |
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* @return SamlSpToken |
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*/ |
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protected function createAuthenticatedToken(SamlSpInfo $samlInfo, array $attributes, array $roles, $user) |
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{ |
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if ($user instanceof UserInterface && $this->userChecker) { |
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$this->userChecker->checkPostAuth($user); |
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} |
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$newToken = new SamlSpToken($this->providerKey, $roles); |
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$newToken->setUser($user); |
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$newToken->setAttributes($attributes); |
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$newToken->setSamlSpInfo($samlInfo); |
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$newToken->setAuthenticated(true); |
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if (!in_array('ROLE_USER', $roles)) { |
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$roles[] = 'ROLE_USER'; |
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} |
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return $newToken; |
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} |
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/** |
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* @param SamlSpToken $token |
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* @return UserInterface |
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* @throws \Exception |
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* @throws \Symfony\Component\Security\Core\Exception\UsernameNotFoundException |
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* @throws \RuntimeException |
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*/ |
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private function getProviderUser(SamlSpToken $token) |
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{ |
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if (!$token || !$token->getSamlSpInfo()) { |
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throw new \RuntimeException('Token does not contain SamlSpInfo'); |
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} |
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try { |
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$user = $this->userProvider->loadUserBySamlInfo($token->getSamlSpInfo()); |
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} catch (UsernameNotFoundException $ex) { |
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if (false == $this->createIfNotExists) { |
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throw $ex; |
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} |
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$user = $this->userProvider->createUserFromSamlInfo($token->getSamlSpInfo()); |
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} |
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if (false == $user instanceof UserInterface) { |
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throw new \RuntimeException('User provider did not return an implementation of user interface.'); |
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} |
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return $user; |
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} |
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/** |
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* @param \AerialShip\SamlSPBundle\Security\Core\Authentication\Token\SamlSpToken $token |
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* @return UserInterface |
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*/ |
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private function getDefaultUser(SamlSpToken $token) |
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{ |
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$nameID = $token && $token->getSamlSpInfo()->getNameID() && $token->getSamlSpInfo()->getNameID()->getValue() ? $token->getSamlSpInfo()->getNameID()->getValue() : 'anon.'; |
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$result = new User($nameID, '', array('ROLE_USER')); |
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return $result; |
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} |
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} |
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aerialship /
SamlSPBundle
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