php实现paypal 授权登录

php实现paypal 授权登录

  <?php     /**   * @project   paypal login   * @author   jiangjianhe    * @date   2015-04-03   */        class paypallogin  {       //沙箱token链接    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链接    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 参数决定访问令牌的访问权限 各个参数详解url;:https://www.paypal-biz.com/product/login-with-paypal/index.html#configureButton       public $token = null;    public $protocol = "http";          /**    * @name 构造函数    * @param $flag 是否沙箱环境    */    public function __construct($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;    }       /**     * 创建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, //通过应用程序注册流程获得的唯一客户端标识符。必需。          'response_type' =>'code', //表明授权代码被发送回应用程序返回URL。为了使访问令牌在用户代理中不可见, 建议使用<code>code</code>一值。如果您希望在响应中同时收到授权代码和 id_token ,请传递 code+id_token。另一个可能的 response_type 值是 token ——大部分由javascript和移动客户端等公共客户端使用。          'scope' => $this->_scope,//;implode(',', $this->scope),          'redirect_uri' => urlencode($this->_redirect_uri), //应用程序的返回URL。结构、主机名和端口必须与您在注册应用程序时设置的返回URL相符。          'nonce' => time().rand(), //不透明的随机标识符,可减少重放攻击风险。简单的函数是:(timestamp + Base64 encoding (random[16]))。          'state' => $this->_state, // CSRF验证码        )      );      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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php实现paypal 授权登录

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