Question

所以我现在一直在调查Braintree Payments几天。我喜欢这个架构，概念等。在浏览了文档和.NET演练之后，我注意到.NET的所有示例都在MVC3中。我正在尝试使用常规Web表单将Braintree集成到我当前的.NET Web应用程序中。

我的目标是将正常的网络表单发回支付页面，同时包含客户数据和卡片数据。卡数据应使用他们的Braintree.js加密。这样我就可以将所有内容发送到Braintree进行处理，包括加密的卡片数据。

表单看起来像这样：

<p>
  <label>Card Number</label>
  <asp:TextBox ID="number" AutoCompleteType="Disabled" MaxLength="20" Width="150" data-encrypted-name="number" runat="server" />        
</p>
<p>
  <label>CVV</label>
  <asp:TextBox ID="cvv" AutoCompleteType="Disabled" MaxLength="4" Width="50" data-encrypted-name="cvv" runat="server" />
</p>
<p>
  <label>Expiration (MM/YYYY)</label>
  <asp:TextBox ID="month" AutoCompleteType="Disabled" MaxLength="2" data-encrypted-name="month" runat="server" />
 /
  <asp:TextBox ID="year" AutoCompleteType="Disabled" MaxLength="4" data-encrypted-name="year" runat="server" />
</p>
<asp:Button ID="btnSubmit" Text="SUBMIT" runat="server" />

<script type="text/javascript" src="https://js.braintreegateway.com/v1/braintree.js"></script>
<script type="text/javascript">
  var braintree = Braintree.create("MyClientSideKey");
  braintree.onSubmitEncryptForm('braintree-payment-form');
</script>

然后在代码隐藏中，我将如下设置Form.Action，Form.Method和Form.ID：

protected void Page_Load(object sender, EventArgs e)
{
  Form.Action = "CreateTransaction()";
  Form.Method = "POST";
  Form.ID = "braintree-payment-form";  
}

然后希望当用户提交表单时，它会点击“CreateTransaction（）”成员以及“collection”参数中的加密卡数据，如下所示：

[HttpPost]
public ActionResult CreateTransaction(FormCollection collection)
{
  TransactionRequest request = new TransactionRequest
  {
    Amount = 1000.0M,
    CreditCard = new TransactionCreditCardRequest
  {
  Number = collection["number"],
  CVV = collection["cvv"],
  ExpirationMonth = collection["month"],
  ExpirationYear = collection["year"]
  },
  Options = new TransactionOptionsRequest
  {
    SubmitForSettlement = true
  }
};

Result<Transaction> result = Constants.Gateway.Transaction.Sale(request);

return null;
}

当我采用这种方法时，表单永远不会回发给“CreateTransaction（）”成员。我错过了什么？可以使用常规的旧网页表单来完成吗？

Answer 1

好的，所以在经过一段时间的实验和在黑暗中拍摄后，我能够得到这个Braintree.js来加密数据，然后再传递给我的服务器。从那里我可以使用代码来处理付款处理。

以下是我正在使用的ASP.NET网络表单：

卡号

    <p>
        <label>CVV</label>
        <asp:TextBox ID="txtCVV" AutoCompleteType="Disabled" MaxLength="4" Width="50" data-encrypted-name="cvv" runat="server" />
    </p>
    <p>
        <label>Expiration (MM/YYYY)</label>
        <asp:TextBox ID="txtMonth" AutoCompleteType="Disabled" MaxLength="2" data-encrypted-name="month" runat="server" />
        /
        <asp:TextBox ID="txtYear" AutoCompleteType="Disabled" MaxLength="4" data-encrypted-name="year" runat="server" />
    </p>
    <asp:Button ID="btnSubmit" Text="SUBMIT" runat="server" />

    <script type="text/javascript" src="https://js.braintreegateway.com/v1/braintree.js"></script>
    <script type="text/javascript">
        var braintree = Braintree.create("YOURKEYHERE");
            braintree.onSubmitEncryptForm('braintree-payment-form');
    </script>

请注意以下几个关键细节：

我正在使用服务器控件。不是简单的HTML标签。
braintree.js将加密具有“数据加密名称”属性的任何字段。
“data-encrypted-name”属性 NOT 必须相同作为控件的ID属性。
braintree.js 脚本正在发布到 “ braintree-payment-form ”表单。

因此，当我点击提交按钮时，此表单自然会回发。我正在使用的特定表单有一个母版页，所以我需要改变Page_Load中的Form.ID：

protected void Page_Load(object sender, EventArgs e)
{
  //Adjust the properties of the form itself as this
  //form has a master page.         
  Form.ID = "braintree-payment-form";

  //Wire up the click event
  btnSubmit.Click += btnSubmit_Click;
}

在click事件处理程序中，我可以从Request.Form对象中提取加密值，然后将事务请求提交给Braintree Gateway：

void btnSubmit_Click(object sender, EventArgs e)
{
  //--------------------------------------------------------------------------------------------------
  //Extract encrypted values from the Request.Form object
  //braintree.js has encrypted these values before placing them in
  //the Request object.
  //--------------------------------------------------------------------------------------------------
  string number = Request.Form["number"].ToString();
  string cvv = Request.Form["cvv"].ToString();
  string month = Request.Form["month"].ToString();
  string year = Request.Form["year"].ToString();

  //--------------------------------------------------------------------------------------------------
  //Gateway
  //This is the Braintree Gateway that we will use to post the transaction
  //to.  This is included here in the example but should be extracted out
  //into some static class somewhere.  Possibly in another layer.
  //--------------------------------------------------------------------------------------------------
  BraintreeGateway Gateway = new BraintreeGateway
  {
    Environment = Braintree.Environment.SANDBOX,
    PublicKey = "YOURPUBLICKEYHERE",
    PrivateKey = "YOURPRIVATEKEYHERE",
    MerchantId = "YOURMERCHANTIDHERE"
  };

  //--------------------------------------------------------------------------------------------------
  //Transaction Request
  //This is the actual transaction request that we are posting to the 
  //Braintree gateway.  The values for number, cvv, month and year have 
  //been encrypted above using the braintree.js.  If you were to put a 
  //watch on the actual server controls their ".Text" property is blank
  //at this point in the process.
  //--------------------------------------------------------------------------------------------------
  TransactionRequest transactionRequest = new TransactionRequest
  {
    Amount = 100.00M,
    CreditCard = new TransactionCreditCardRequest
    {
      Number = number,
      CVV = cvv,
      ExpirationMonth = month,
      ExpirationYear = year,
    }
  };

  //--------------------------------------------------------------------------------------------------
  //Transaction Result
  //Here we are going to post our information, including the encrypted
  //values to Braintree.  
  //--------------------------------------------------------------------------------------------------
  Result<Transaction> result = Gateway.Transaction.Sale(transactionRequest);
}

好的，所以这是一个非常基本的如何将事务发布到Braintree的示例。然而，它解决了我在卡数据到达我的服务器之前加密的第一大障碍。希望这会有所帮助...

我可以在.NET Web应用程序中使用Braintree.js吗？

1 个答案: