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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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namespace TSK\SSO\ThirdParty\Google; |
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use TSK\SSO\Http\CurlRequest; |
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use TSK\SSO\ThirdParty; |
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use TSK\SSO\ThirdParty\CommonAccessToken; |
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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\ThirdPartyUser; |
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use TSK\SSO\ThirdParty\VendorConnection; |
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use Google_Client; |
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use Google_Service_Plus; |
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use RuntimeException; |
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/** |
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* @codeCoverageIgnore |
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* @package TSK\SSO\ThirdParty\Google |
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* @see https://console.developers.google.com |
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*/ |
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class GoogleConnection implements VendorConnection |
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{ |
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const API_BASE = 'https://www.googleapis.com'; |
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/** |
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* @var GoogleApiConfiguration |
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*/ |
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private $apiConfiguration; |
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/** |
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* @var CurlRequest |
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*/ |
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private $curlClient; |
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/** |
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* @var Google_Client |
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*/ |
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private $googleClient; |
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/** |
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* @param GoogleApiConfiguration $apiConfiguration |
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* @param CurlRequest $curlClient |
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*/ |
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public function __construct( |
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GoogleApiConfiguration $apiConfiguration, |
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CurlRequest $curlClient |
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) { |
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$this->apiConfiguration = $apiConfiguration; |
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$this->curlClient = $curlClient; |
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$this->googleClient = new Google_Client(array( |
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'client_id' => $this->apiConfiguration->appId(), |
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'client_secret' => $this->apiConfiguration->appSecret(), |
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'redirect_uri' => $this->apiConfiguration->redirectUrl(), |
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)); |
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$this->googleClient->setScopes($this->apiConfiguration->appPermissions()); |
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} |
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/** |
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* Use this to get a link to redirect a user to the google login page. |
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* |
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* @return string |
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*/ |
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public function getGrantUrl() |
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{ |
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return filter_var($this->googleClient->createAuthUrl(), FILTER_SANITIZE_URL); |
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} |
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/** |
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* Grants a new access token |
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* |
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* @return CommonAccessToken |
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* @throws ThirdPartyConnectionFailedException |
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*/ |
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public function grantNewAccessToken() |
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{ |
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if (empty($_GET['code'])) { |
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throw new RuntimeException('Error : A code cannot be found!'); |
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} |
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try { |
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$authResponse = $this->googleClient->fetchAccessTokenWithAuthCode($_GET['code']); |
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$accessTokenInfo = $this->googleClient->getAccessToken(); |
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$userInfo = array(); |
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if ($accessTokenInfo) { |
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$userInfo = $this->googleClient->verifyIdToken(); |
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} |
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} catch (\Exception $ex) { |
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throw new ThirdPartyConnectionFailedException( |
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sprintf('Failed to establish a new third party vendor connection. Error : %s', $ex->getMessage()) |
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); |
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} |
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if (empty($authResponse['access_token'])) { |
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throw new ThirdPartyConnectionFailedException('Failed to establish a new third party vendor connection.'); |
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} |
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return new CommonAccessToken( |
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$authResponse['access_token'], |
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ThirdParty::GOOGLE, |
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$userInfo['email'] |
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); |
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} |
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/** |
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* Get the current authenticated user data using there existing granted token |
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* |
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* @param CommonAccessToken $accessToken |
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* @return ThirdPartyUser |
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* @throws NoThirdPartyEmailFoundException |
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* @throws ThirdPartyConnectionFailedException |
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*/ |
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public function getSelf(CommonAccessToken $accessToken) |
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{ |
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$userJsonInfo = $this->curlClient->get( |
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sprintf('%s/oauth2/v1/userinfo?access_token=%s', self::API_BASE, $accessToken->token()) |
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); |
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$userInfo = json_decode($userJsonInfo, true); |
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if (!empty($userInfo['error'])) { |
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throw new ThirdPartyConnectionFailedException( |
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sprintf('Failed to retrieve third party user data. Error : %s', $userInfo['error']) |
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); |
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} |
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if (empty($userInfo['email'])) { |
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throw new NoThirdPartyEmailFoundException('An email address cannot be found from vendor'); |
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} |
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return new ThirdPartyUser( |
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$userInfo['id'], |
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$userInfo['name'], |
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$userInfo['email'], |
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!empty($userInfo['picture']) ? $userInfo['picture'] : '', |
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!empty($userInfo['gender']) ? $userInfo['gender'] : '' |
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); |
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} |
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/** |
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* Use this to revoke the access to the third party data. |
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* This will completely remove the access from the vendor side. |
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* |
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* @param CommonAccessToken $accessToken |
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* @return bool |
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*/ |
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public function revokeAccess(CommonAccessToken $accessToken) |
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{ |
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$revoked = $this->googleClient->revokeToken($accessToken->token()); |
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if (!$revoked) { |
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return false; |
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} |
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return true; |
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} |
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} |
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tharangakothalawala /
sso
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.