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<?php |
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/** |
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* @author Tharanga Kothalawala <[email protected]> |
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* @date 17-02-2019 |
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*/ |
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namespace TSK\SSO\ThirdParty\Amazon; |
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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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/** |
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* @codeCoverageIgnore |
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* @package TSK\SSO\ThirdParty\Amazon |
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* @see https://login.amazon.com/website |
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* @see https://images-na.ssl-images-amazon.com/images/G/01/lwa/dev/docs/website-developer-guide._TTH_.pdf |
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*/ |
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class AmazonConnection implements VendorConnection |
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{ |
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const API_BASE = 'https://api.amazon.com'; |
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/** |
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* @var AmazonApiConfiguration |
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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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* AmazonConnection constructor. |
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* @param AmazonApiConfiguration $apiConfiguration |
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* @param CurlRequest $curlClient |
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*/ |
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public function __construct(AmazonApiConfiguration $apiConfiguration, CurlRequest $curlClient) |
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{ |
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$this->apiConfiguration = $apiConfiguration; |
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$this->curlClient = $curlClient; |
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} |
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/** |
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* Use this to get a link to redirect a user to the third party login |
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* |
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* @return string|null |
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*/ |
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public function getGrantUrl() |
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{ |
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return sprintf( |
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'https://www.amazon.com/ap/oa?client_id=%s&scope=profile&response_type=code&redirect_uri=%s&state=%s', |
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$this->apiConfiguration->clientId(), |
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urlencode($this->apiConfiguration->redirectUrl()), |
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$this->apiConfiguration->ourSecretState() |
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); |
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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($_GET['code']) |
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|| empty($_GET['state']) |
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|| $_GET['state'] !== $this->apiConfiguration->ourSecretState() |
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) { |
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throw new ThirdPartyConnectionFailedException('Invalid request!'); |
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} |
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$accessTokenJsonResponse = $this->curlClient->postUrlEncoded( |
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sprintf("%s/auth/o2/token", self::API_BASE), |
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sprintf( |
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'grant_type=authorization_code&code=%s&client_id=%s&client_secret=%s&redirect_uri=%s', |
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$_GET['code'], |
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$this->apiConfiguration->clientId(), |
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$this->apiConfiguration->clientSecret(), |
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urlencode($this->apiConfiguration->redirectUrl()) |
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) |
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); |
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$accessTokenData = json_decode($accessTokenJsonResponse, true); |
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if (empty($accessTokenData['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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$accessTokenData['access_token'], |
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ThirdParty::AMAZON |
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); |
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} |
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/** |
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* Use this to retrieve the current user's third party user data using there existing granted access 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/user/profile", self::API_BASE), |
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array( |
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sprintf('Authorization: Bearer %s', $accessToken->token()), |
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'Accept: application/json', |
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'Accept-Language: en-us', |
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) |
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); |
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$userInfo = json_decode($userJsonInfo, true); |
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if (empty($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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$userInfo['user_id'], |
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$userInfo['name'], |
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$userInfo['email'] |
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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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// noop : cannot find documentation on how to revoke the app's access. |
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return true; |
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} |
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} |
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tharangakothalawala /
sso
