How to determine the boundaries of HTTP header?

[wonter]

Hi

I am writing an http proxy and parsing HTTP messages using http-parser

In most cases, proxy will add some additional headers such as ‎X-Forwarded-Host, Proxy-Authorization and so on

So i'd like to split HTTP message to 3 parts which is:

1. original header
2. additional headers
3. body

But http-parser doesn't provide some API to help me determine the boundaries of HTTP header

Is there any way to do it?

[bnoordhuis]

http-parser is basically a state machine so if you keep track of when your callbacks are invoked, you can keep track of the state.

on_header_field, on_header_value and on_headers_complete in particular are the callbacks you'd care about.