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<?php |
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/** |
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* @author Tharanga Kothalawala <[email protected]> |
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* @date 30-12-2018 |
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* |
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* This is similar to the Default version. But this also stores the vendor token user details in a given storage by mapping the client application user record. |
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* use this if you want to connect & use multiple vendor login such as Facebook and/or Google. |
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*/ |
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namespace TSK\SSO\Auth; |
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use TSK\SSO\AppUser\AppUser; |
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use TSK\SSO\AppUser\AppUserRepository; |
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use TSK\SSO\AppUser\ExistingAppUser; |
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use TSK\SSO\Auth\Exception\AuthenticationFailedException; |
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use TSK\SSO\Storage\Exception\DataCannotBeStoredException; |
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use TSK\SSO\Storage\FileSystemThirdPartyStorageRepository; |
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use TSK\SSO\Storage\ThirdPartyStorageRepository; |
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use TSK\SSO\ThirdParty\Exception\NoThirdPartyEmailFoundException; |
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use TSK\SSO\ThirdParty\Exception\ThirdPartyConnectionFailedException; |
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use TSK\SSO\ThirdParty\VendorConnection; |
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/** |
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* @package TSK\SSO\Auth |
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* @see AppUserAwarePersistingAuthenticator |
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* |
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* Use this to do a signup/signin via a third party vendor connection by persisting vendor data. |
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* It is recommended to use this if you are planning to have more than one sso integration. |
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*/ |
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class PersistingAuthenticator implements Authenticator |
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{ |
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/** |
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* @var AppUserRepository |
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*/ |
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private $appUserRepository; |
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/** |
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* @var ThirdPartyStorageRepository |
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*/ |
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private $storageRepository; |
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/** |
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* @param AppUserRepository $appUserRepository client application specific user repository implementation to use |
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* to provision or validate users. |
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* @param ThirdPartyStorageRepository $storageRepository a storage implementation to store the third party auth |
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* data. By default uses file system as the storage. |
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*/ |
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public function __construct( |
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AppUserRepository $appUserRepository, |
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ThirdPartyStorageRepository $storageRepository = null |
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) { |
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$this->appUserRepository = $appUserRepository; |
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$this->storageRepository = is_null($storageRepository) |
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? new FileSystemThirdPartyStorageRepository() |
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: $storageRepository; |
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} |
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/** |
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* This will try to authenticate a user using any given vendor connection. |
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* Upon a successful attempt, returns the authenticated user. |
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* |
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* @param VendorConnection $thirdPartyConnection vendor connection to use to perform an auth |
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* @return AppUser |
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* |
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* @throws AuthenticationFailedException |
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* @throws DataCannotBeStoredException |
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* @throws NoThirdPartyEmailFoundException |
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* @throws ThirdPartyConnectionFailedException |
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*/ |
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public function authenticate(VendorConnection $thirdPartyConnection) |
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{ |
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$accessToken = $thirdPartyConnection->grantNewAccessToken(); |
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$thirdPartyUser = $thirdPartyConnection->getSelf($accessToken); |
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// a SIGN-IN attempt |
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// check if this is a signin attempt with an existing user account |
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$existingAppUser = $this->appUserRepository->getUser($thirdPartyUser->email()); |
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// if no user account found with the same vendor email as the app email, |
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// do a mapping lookup in the storage across all vendors |
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if (is_null($existingAppUser)) { |
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$mappedUser = $this->storageRepository->getUser($thirdPartyUser->email()); |
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if (!is_null($mappedUser)) { |
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$existingAppUser = new ExistingAppUser($mappedUser->appUserId(), $mappedUser->vendorEmail()); |
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} |
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} |
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// a SIGN-UP attempt |
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// if no user found previously, let's create a new user as this seems like a signup attempt |
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if (is_null($existingAppUser)) { |
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$existingAppUser = $this->appUserRepository->create($thirdPartyUser); |
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} |
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// let's add/update the mapping of the newly created or the existing user's access token before we acknowledge |
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if (!is_null($existingAppUser)) { |
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$this->storageRepository->save($existingAppUser, $thirdPartyUser, $accessToken); |
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} |
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// throw error, if still the an app user cannot be resolved. |
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if (is_null($existingAppUser)) { |
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throw new AuthenticationFailedException('This user cannot be authenticated at this moment'); |
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} |
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return $existingAppUser; |
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} |
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} |
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tharangakothalawala /
sso
