cohttp-proxing-https-request

curl-verbose

% http_proxy=http://127.0.0.1:30000 https_proxy=http://127.0.0.1:30000 all_proxy=http://127.0.0.1:30000 curl --http1.1 -vvv https://ifconfig.io/ua
Warning: Overrides previous HTTP version option
* Uses proxy env variable https_proxy == 'http://127.0.0.1:30000'
*   Trying 127.0.0.1:30000...
* Connected to 127.0.0.1 (127.0.0.1) port 30000
* CONNECT tunnel: HTTP/1.1 negotiated
* allocate connect buffer
* Establish HTTP proxy tunnel to ifconfig.io:443
> CONNECT ifconfig.io:443 HTTP/1.1
> Host: ifconfig.io:443
> User-Agent: curl/8.4.0
> Proxy-Connection: Keep-Alive
> 
< HTTP/1.1 500 Internal Server Error
< content-length: 28
< 
* CONNECT tunnel failed, response 500
* Closing connection
curl: (56) CONNECT tunnel failed, response 500

proxy-start-and-output

% dune exec cohttp-lwt-unix/bin/cohttp_proxy_lwt.exe -- -s 127.0.0.1 -p 30000 --verbose
Listening for HTTP request on: 127.0.0.1 30000
--> CONNECT //ifconfig.io:443 ((headers
  ((Host ifconfig.io:443) (User-Agent curl/8.4.0)
   (Proxy-Connection Keep-Alive)))
 (meth CONNECT) (scheme ()) (resource ifconfig.io:443) (version HTTP_1_1)
 (encoding Unknown))
[INFO][application]: CONNECT //ifconfig.io:443
[ERROR][cohttp.lwt.server]: Error handling ((headers
  ((Host ifconfig.io:443) (User-Agent curl/8.4.0)
   (Proxy-Connection Keep-Alive)))
 (meth CONNECT) (scheme ()) (resource ifconfig.io:443) (version HTTP_1_1)
 (encoding Unknown)): Cohttp_lwt__Connection.Retry
Connection (TCP ((fd <opaque>) (ip 127.0.0.1) (port 55556))) closed
[WARNING][cohttp.lwt.server]: Client connection error Connection reset by peer: read("")