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iOS接入,服务器出现21002问题

190
2023-02-01
iOS接入,服务器出现21002问题

前言

之前的老的框架,之前的项目一直都很正常的运行,这次接入 iOS 支付的时候,服务器出现了 21002 错误。这个问题让我头疼了 1 天。

正文

原因很简单,正常的 iOS 内购,苹果给的收据,由客户端进行 base64 编码之后,直接发送给服务器,然后服务器向苹果的对账服务器请求验证。只需要按苹果要求组装好 json 字符串即可。

而网上关于设置 content_type = "application/json; charset=utf-8",或则将空格换成 + 号的说法,其实和这个 21002 半毛钱关系都没有。

据我的测试可得知,content_type 设不设置都没关系,而空格换成 + 号也是属于客户端与服务器之间的传输协议问题。如果是 http 请求,可能被替换,但是如果是用 socket 连接,这个一点都不是问题。

问题的唯一可能存在的地方,就是这个 base64 数据块有问题。可能是 base64 编码数据被破坏了,还有种可能就是 base64 编码的内容被破坏了。

后一种情况听起来貌似匪夷所思。但事实上,我这次碰到的就是这种情况。为什么呢?因为 Unity IAP 插件发送给客户端的是一个Json 字符串!而收据作为这个 Json 的一部分,已经被编码了。客户端再次编码整个字符串,就完全是南辕北辙了。

{"Store":"AppleAppStore","TransactionID":"2000000039643941","Payload":"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..."}

这儿可以看到,Json 字符串的 Payload 部分就是收据,而且还是经过 Base64 编码的。因此。只需要把这个部分读出来发送给服务器即可。

另外,说到 21002,还有个可能,就是服务器与苹果对账服务器的连接,不能是长连接。每一次请求完就关闭。如果使用那种 Keep Alive 模式,试图与苹果对账服务器保持长连接的话,你会得到随机的 21002 错误。

而如果想要验证自己的代码是否有问题,可以直接使用下面的收据(已经 base64 编码)试试。如果能得到解密字符串,就代表代码是成功的。

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

后记

文章参考自:原文地址