英文:
Calculate size of Incoming Request as received over the wire
问题
我正在进行一个基于 ReverseProxy 的项目，并且我正在尝试找出如何计算整个传入请求的大小，包括头部、正文和尾部。
由于速度很重要，我不想通过累加解析请求的各个字段来计算大小，而是希望在读取传入请求时进行计算。
从我所看到的情况来看，"request.go" 中的 readRequest 函数似乎是最适合进行此操作的地方，但我不确定如何修改或包装该函数以计算大小。
英文:
I am working on a ReverseProxy based project and I am trying to figure out how to calculate the size of the entire incoming request. i.e. including headers, body & trailers.
Since speed is important, I don't want to calculate it by adding up the various fields of the parsed request, and instead was looking for a way to do it as the Incoming Request is read.
From what I can see, the readRequest function from "request.go" seems to be the most appropriate place to do this, but I am unsure about how to go about modifying this or wrapping this function to also calculate the size.
答案1
得分: 0
在这里找到了解决方案-https://stackoverflow.com/questions/43944378/count-sent-and-received-bytes-in-go-in-an-http-handler-servehttp-function/43944695#43944695
可以修改为在反向代理场景中工作，并且正好符合我的要求。
更新：这个Github代码在最终解决方案中也非常有用。https://github.com/j0hnsmith/connspy
现在，当使用Golang作为反向代理时，我可以获取通过网络发送和接收的原始数据。
希望这对将来的某个人有所帮助。
英文:
Found a solution for this here - https://stackoverflow.com/questions/43944378/count-sent-and-received-bytes-in-go-in-an-http-handler-servehttp-function/43944695#43944695
It can be modified to work in a Reverse Proxy scenario & does exactly what I wanted.
Update: This Github code was also very useful in the final solution. https://github.com/j0hnsmith/connspy
Now I can get the raw data received & sent over the wire when using Golang as a reverse proxy
Hope this helps someone in the future
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