encryption - HTTP 发布 : getting encrypted Paypal multiple-item cart upload button

Question

我在使用 BMCreateButton 时遇到问题的 Button Manager API 以获取上传的多项目购物车。paypal里面documentation for the cart upload command ，关于“保护你的按钮”的段落暗示应该可以获得上面列出的所有功能的加密按钮，包括购物车上传表单。而在 this SO thread ，有人说他们已经用 PHP 解决了这个问题，但是经过查找，他们使用简单的 HTTP Post 并不明显，因为它与 PHP 类的内部工作有关。

到目前为止，我只能查看一项，并且在尝试使用多项语法(item_name_1、item_name_2...)时显示没有项目，总计 0.00。

这是我的请求代码:

string requestContent =
  "METHOD=BMCreateButton" +
  "&VERSION=85.0" +
  "&USER=<user>" +
  "&PWD=<pwd>" +
  "&SIGNATURE=<sig>" +
  "&BUTTONCODE=ENCRYPTED" +
  "&BUTTONTYPE=BUYNOW" +
  "&BUTTONIMAGE=reg" +
  "&BUTTONCOUNTRY=US" +
  "&BUTTONSUBTYPE=PRODUCTS" +

  //"&L_BUTTONVAR1=cmd%3D_cart" + //having this in here definitely causes an error message to display
  "&L_BUTTONVAR1=button_subtype%3DPRODUCTS" +
  "&L_BUTTONVAR2=business%3Dbiz%40biz.com" +
  "&L_BUTTONVAR3=item_name_1%3DToaster" +
  "&L_BUTTONVAR4=amount_1%3D45.00" +
  "&L_BUTTONVAR5=quantity_1%3D1" +
  "&L_BUTTONVAR6=upload%3D1";

它不起作用 - 我已经询问了 PayPal 技术支持，如果我从他们那里听到关于这个主题的任何回复，我会回复这里。

Answer 1

我遇到了同样的问题，但由于没有任何进展，我联系了 PayPal 支持。 There is the answer :

如果链接失效，有引用回复:

It's not only with ENCRYPTED. If you try CLEARTEXT, the same error is thrown.

Upload cart is a slightly different kind of button, that was never intended to be pre-built, and that's why this functionality doesn't exist in BMCreateButton. If you compare the Button Manager in the account and the API functionality - they have the same capabilities and, in both cases, the upload cart isn't there.

Looking at the documentation, you will also notice the BUTTONTYPE=CART refers to Add to cart.

It makes perfect sense to try to secure the upload cart code, but the best way will always be post-transaction consistency verification (with IPN).

所以综上所述，不可能对其进行加密，我们只能检测篡改，例如使用 IPN。

在对我的问题的回应中，PayPal 版主提出了一个问题以在文档中澄清这一点。