php實現paypal 授權登入

 　　本文給大家分享的是php實現的paypal授權登入的代碼，十分的簡單實用，有需要的小夥伴可以參考下。

　　php實現paypal 授權登入

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<?php   /** * @project paypal login * @author jiangjianhe * @date 2015-04-03 */     class paypallogin {   //沙箱token連結 private $_sanbox_oauth2_auth_uri = 'https://www.sandbox.paypal.com/webapps/auth/protocol/openidconnect/v1/authorize'; private $_live_oauth2_auth_uri = 'https://www.paypal.com/webapps/auth/protocol/openidconnect/v1/authorize';   private $_acquire_user_profile_sandbox_url = 'https://www.sandbox.paypal.com/webapps/auth/protocol/openidconnect/v1/userinfo?schema=openid&access_token='; private $_acquire_user_profile_live_url = 'https://www.paypal.com/webapps/auth/protocol/openidconnect/v1/userinfo?schema=openid&access_token=';   //沙箱token連結 private $_token_service_sandbox_url = 'https://www.sandbox.paypal.com/webapps/auth/protocol/openidconnect/v1/tokenservice'; private $_token_service_live_url = 'https://www.paypal.com/webapps/auth/protocol/openidconnect/v1/tokenservice'; private $_sanbox_flag = true; private $_client_id = null; private $_client_secret = null; private $_redirect_uri = null; private $_state = ''; private $_scope = 'openid email phone profile address https://uri.paypal.com/services/paypalattributes'; //scope 參數決定存取權杖的存取權限 各個參數詳解url;:https://www.paypal-biz.com/product/login-with-paypal/index.html#configureButton   public $token = null; public $protocol = "http";     /** * @name 建構函式 * @param $flag 是否沙箱環境 */ public function __construct($redirect_uri, $client_id,$client_secret,$scope,$state,$flag = true) { $this->_sanbox_flag = $flag; $this->_redirect_uri = $redirect_uri; $this->_client_id = $client_id; $this->_client_secret = $client_secret; $this->_scope = $scope; $this->_state = $state; }   /** * 建立paypal request url * @return string */ public function create_request_url() { $oauth2_auth_uri = $this->_sanbox_flag ? $this->_sanbox_oauth2_auth_uri :$this->_live_oauth2_auth_uri; $url = $oauth2_auth_uri.'?'. http_build_query( array( 'client_id' => $this->_client_id, //通過應用程式註冊流程獲得的唯一用戶端標識符。必需。 'response_type' =>'code', //表明授權碼被發送回應用程式返回URL。為了使存取權杖在使用者代理程式中不可見， 建議使用<code>code</code>一值。如果您希望在響應中同時收到授權碼和 id_token ，請傳遞 code+id_token。另一個可能的 response_type 值是 token ——大部分由javascript和移動用戶端等公用用戶端使用。 'scope' => $this->_scope,//;implode(',', $this->scope), 'redirect_uri' => urlencode($this->_redirect_uri), //應用程式的返回URL。結構、主機名稱和連接埠必須與您在註冊應用程式時設定的返回URL相符。 'nonce' => time().rand(), //不透明的隨機標識符，可減少重放攻擊風險。簡單的函數是：(timestamp + Base64 encoding (random[16]))。 'state' => $this->_state, // CSRF驗證碼 ) ); return $url; }   /** * get PayPal access token * @param string $code ? * @return string access token */ public function acquire_access_token($code ) { $accessToken = null;   try { $postvals = sprintf("client_id=%s&client_secret=%s&grant_type=authorization_code&code=%s",$this->_client_id,$this->_client_secret,$code); if($this->_sanbox_flag) $ch = curl_init($this->_token_service_sandbox_url); else $ch = curl_init($this->_token_service_live_url);   $options = array( CURLOPT_POST => 1, CURLOPT_VERBOSE => 1, CURLOPT_POSTFIELDS => $postvals, CURLOPT_RETURNTRANSFER => 1, CURLOPT_SSL_VERIFYPEER => FALSE, //CURLOPT_SSLVERSION => 2 );   curl_setopt_array($ch, $options); $response = curl_exec($ch); $error = curl_error($ch);   curl_close( $ch );   if (!$response ) { throw new Exception( "Error retrieving access token: " . curl_error($ch)); } $jsonResponse = json_decode($response );   if ( isset( $jsonResponse->access_token) ) { $accessToken = $jsonResponse->access_token; }   } catch( Exception $e) { throw new Exception($e->getMessage(), 1); }   return $accessToken; }   /** * get the PayPal user profile, decoded * @param string $accessToken * @return object */ public function acquire_paypal_user_profile($accessToken ) { try { if($this->_sanbox_flag) $url = $this->_acquire_user_profile_sandbox_url . $accessToken; else $url = $this->_acquire_user_profile_live_url . $accessToken;   $ch = curl_init( $url ); $options = array( CURLOPT_RETURNTRANSFER => 1, CURLOPT_SSL_VERIFYPEER => FALSE, //CURLOPT_SSLVERSION => 2 ); curl_setopt_array($ch, $options);   $response = curl_exec($ch); $error = curl_error( $ch); curl_close( $ch );   if (!$response ) { return false; } return json_decode($response); } catch( Exception $e ) { return false; } } } ?>

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