[WP-Plugins/glm-member-db-registrations.git] /

<?php\r
\r
namespace PayPal\Auth;\r
\r
/**\r
 * Oauth Token credential\r
 *\r
 */\r
use PayPal\Rest\RestHandler;\r
use PayPal\Common\PPUserAgent;\r
use PayPal\Core\PPLoggingManager;\r
use PayPal\Core\PPConstants;\r
use PayPal\Core\PPHttpConfig;\r
use PayPal\Core\PPConnectionManager;\r
use PayPal\Exception\PPConfigurationException;\r
\r
class OAuthTokenCredential {\r
        \r
        private static $expiryBufferTime = 120;\r
        \r
        private $logger;\r
        \r
        /**\r
         * Client ID as obtained from the developer portal\r
         */\r
        private $clientId;\r
        \r
        /**\r
         * Client secret as obtained from the developer portal\r
         */\r
        private $clientSecret;\r
        \r
        \r
        /**\r
         * Generated Access Token\r
         */\r
        private $accessToken;   \r
        \r
        /**\r
         * Seconds for with access token is valid\r
         */\r
        private $tokenExpiresIn;\r
        \r
        /**\r
         * Last time (in milliseconds) when access token was generated\r
         */\r
        private $tokenCreateTime;\r
        \r
        /**\r
         * \r
         * @param string $clientId client id obtained from the developer portal\r
         * @param string $clientSecret client secret obtained from the developer portal\r
         */\r
        public function __construct($clientId, $clientSecret) {\r
                $this->clientId = $clientId;\r
                $this->clientSecret = $clientSecret;            \r
        }\r
        \r
        /**\r
         * @return the accessToken\r
         */\r
        public function getAccessToken($config) {\r
\r
                $this->logger = new PPLoggingManager(__CLASS__, $config);\r
                // Check if Access Token is not null and has not expired.\r
                // The API returns expiry time as a relative time unit \r
                // We use a buffer time when checking for token expiry to account\r
                // for API call delays and any delay between the time the token is\r
                // retrieved and subsequently used\r
                if ($this->accessToken != null && \r
                                (time() - $this->tokenCreateTime) > ($this->tokenExpiresIn - self::$expiryBufferTime)) {                        \r
                                $this->accessToken = null;                      \r
                }\r
                // If accessToken is Null, obtain a new token\r
                if ($this->accessToken == null) {                       \r
                        $this->_generateAccessToken($config);\r
                }\r
                return $this->accessToken;\r
        }\r
        \r
        /**\r
         * Generates a new access token\r
         */\r
        private function _generateAccessToken($config) {\r
\r
                $base64ClientID = base64_encode($this->clientId . ":" . $this->clientSecret);                                                   \r
                $headers = array(\r
                        "User-Agent" => PPUserAgent::getValue(RestHandler::$sdkName, RestHandler::$sdkVersion), \r
                        "Authorization" => "Basic " . $base64ClientID,\r
                        "Accept" => "*/*"\r
                );              \r
                $httpConfiguration = $this->getOAuthHttpConfiguration($config);\r
                $httpConfiguration->setHeaders($headers);\r
                \r
                $connection = PPConnectionManager::getInstance()->getConnection($httpConfiguration, $config);           \r
                $res = $connection->execute("grant_type=client_credentials");           \r
                $jsonResponse = json_decode($res, true);\r
                if($jsonResponse == NULL || \r
                                !isset($jsonResponse["access_token"]) || !isset($jsonResponse["expires_in"]) ) {\r
                        $this->accessToken = NULL;\r
                        $this->tokenExpiresIn = NULL;   \r
                        $this->logger->warning("Could not generate new Access token. Invalid response from server: " . $jsonResponse);          \r
                } else {\r
                        $this->accessToken = $jsonResponse["access_token"];\r
                        $this->tokenExpiresIn = $jsonResponse["expires_in"];\r
                }\r
                $this->tokenCreateTime = time();\r
                return $this->accessToken;\r
        }\r
        \r
        /*\r
         * Get HttpConfiguration object for OAuth API\r
        */\r
        private function getOAuthHttpConfiguration($config) {\r
                if (isset($config['oauth.EndPoint'])) {\r
                        $baseEndpoint = $config['oauth.EndPoint'];\r
                } else if (isset($config['service.EndPoint'])) {\r
                        $baseEndpoint = $config['service.EndPoint'];\r
                } else if (isset($config['mode'])) {\r
                        switch (strtoupper($config['mode'])) {\r
                                case 'SANDBOX':\r
                                        $baseEndpoint = PPConstants::REST_SANDBOX_ENDPOINT;\r
                                        break;\r
                                case 'LIVE':\r
                                        $baseEndpoint = PPConstants::REST_LIVE_ENDPOINT;\r
                                        break;\r
                                default:\r
                                        throw new PPConfigurationException('The mode config parameter must be set to either sandbox/live');\r
                        }\r
                } else {\r
                        throw new PPConfigurationException('You must set one of service.endpoint or mode parameters in your configuration');\r
                }               \r
                \r
                $baseEndpoint = rtrim(trim($baseEndpoint), '/');                 \r
                return new PPHttpConfig($baseEndpoint . "/v1/oauth2/token", "POST");\r
        }\r
}\r