cakephp - 如何在 cakePHP 3.x 中正确实现 ExpressCheckout？

Question

我已经基于 ExpressCheckout 向导在 cakePHP3.x 网站中实现了 ExpressCheckoutDG。 ( https://devtools-paypal.com/integrationwizard/ )

所以支付过程是在一个专门打开的框架中实现的。

一切顺利，直到付款完成并且 Paypal 调用返回 URL。 在调用名为confirm的方法结束时，我不知道如何关闭Paypal框架并返回到指定的url。

我的确认方法是:

public function confirm() {

    $this->log($this->request->url . ' confirm', 'debug' );

    $this->loadModel('Orders');

    $PaymentOption = "PayPal";
    if ( $PaymentOption == "PayPal" )
    {
        $res = $this->GetExpressCheckoutDetails( $_REQUEST['token'] );

        /**
         * I removed this part of code as it doesn't concern the problem
         */

        $resArray = $this->ConfirmPayment ( $token, $paymentType, $currencyCodeType, $payerID, $finalPaymentAmount, $items );
        $ack = strtoupper($resArray["ACK"]);

        $this->log($this->request->url . ' confirm :' . $ack, 'debug' );

        if( $ack == "SUCCESS" || $ack == "SUCCESSWITHWARNING" )
        {

            /**
             * I removed this part of code as it doesn't concern the problem
             */

            /*
             * Here I save the transaction
             */

            // Add javascript to close Digital Goods frame. You may want to add more javascript code to
            // display some info message indicating status of purchase in the parent window
            $this->Flash->success(__("transaction successfully completed"));

            $this->log($this->request->url . ' confirm : display confirm.ctp', 'debug' );

            /*
             * So the problem is here: What to do to close the Paypal frame, AND return to a given page of my website??
             */
            //$this->redirect(['controller' => 'Sites', 'action' => 'view']);
            $this->set(compact('ack'));
        }
        else
        {
            //Display a user friendly Error on the page using any of the following error information returned by PayPal
            $ErrorCode = urldecode($resArray["L_ERRORCODE0"]);
            $ErrorShortMsg = urldecode($resArray["L_SHORTMESSAGE0"]);
            $ErrorLongMsg = urldecode($resArray["L_LONGMESSAGE0"]);
            $ErrorSeverityCode = urldecode($resArray["L_SEVERITYCODE0"]);

            echo "DoExpressCheckoutDetails API call failed. ";
            echo "Detailed Error Message: " . $ErrorLongMsg;
            echo "Short Error Message: " . $ErrorShortMsg;
            echo "Error Code: " . $ErrorCode;
            echo "Error Severity Code: " . $ErrorSeverityCode;

            $this->Flash->error(__("votre achat n'a pas été accepté"));
            $this->set(compact('ack'));
        }
    }
    $this->set(compact('ack'));
}

如您所见，付款过程进行得很顺利，直到尝试完成:

2015-02-20 11:00:38 Debug: pros/Sitemessages/checkout checkout
2015-02-20 11:00:38 Debug: pros/Sitemessages/checkout SetExpressCheckoutDG
2015-02-20 11:00:38 Debug: pros/Sitemessages/checkout hash_call
2015-02-20 11:00:41 Debug: pros/Sitemessages/checkout deformatNVP
2015-02-20 11:00:41 Debug: pros/Sitemessages/checkout deformatNVP
2015-02-20 11:00:41 Debug: pros/Sitemessages/checkout hash_call: closing
2015-02-20 11:00:41 Debug: pros/Sitemessages/checkout RedirectToPayPalDG
2015-02-20 11:01:15 Debug: pros/Sitemessages/confirm confirm
2015-02-20 11:01:15 Debug: pros/Sitemessages/confirm GetExpressCheckoutDetails
2015-02-20 11:01:15 Debug: pros/Sitemessages/confirm hash_call
2015-02-20 11:01:18 Debug: pros/Sitemessages/confirm deformatNVP
2015-02-20 11:01:18 Debug: pros/Sitemessages/confirm deformatNVP
2015-02-20 11:01:18 Debug: pros/Sitemessages/confirm hash_call: closing
2015-02-20 11:01:18 Debug: pros/Sitemessages/confirm ConfirmPayment
2015-02-20 11:01:18 Debug: pros/Sitemessages/confirm hash_call
2015-02-20 11:01:23 Debug: pros/Sitemessages/confirm deformatNVP
2015-02-20 11:01:23 Debug: pros/Sitemessages/confirm deformatNVP
2015-02-20 11:01:23 Debug: pros/Sitemessages/confirm hash_call: closing
2015-02-20 11:01:23 Debug: pros/Sitemessages/confirm confirm :SUCCESS
2015-02-20 11:01:23 Notice: pros/Sitemessages/confirm transaction successfully saved
2015-02-20 11:01:23 Debug: pros/Sitemessages/confirm confirm : display confirm.ctp

这是我的 confirm.ctp 文件:

<?php if ( $ack == "SUCCESS" || $ack == "SUCCESSWITHWARNING" ):?>
    <script>
    alert("Payment Successful");
    // add relevant message above or remove the line if not required
    window.onload = function(){
        if(window.opener){
             window.close();
         }
        else{
             if(top.dg.isOpen() == true){
                 top.dg.closeFlow();
                 return true;
              }
          }
    };

    </script>
<?php else:?>
    <script>
    alert("Payment failed");
    // add relevant message above or remove the line if not required
    window.onload = function(){
        if(window.opener){
             window.close();
         }
        else{
             if(top.dg.isOpen() == true){
                 top.dg.closeFlow();
                 return true;
              }
          }
    };

    </script>
<?php endif;?>

关于关闭 Paypal Frame 并返回给定 url 的解决方案有什么想法吗？

Answer 1

您需要有一个页面，除了用于关闭窗口的 javascript 之外什么都没有。这就是您要设置为返回 URL 和取消 URL 的内容，以便窗口简单地关闭。

Here's a demo我用我的 PHP class library for PayPal 放在一起这将向您展示如何使其发挥作用。