i/o timeout when some clients connect to the proxy

[KewaiiGamer]

Expected Behavior

Client should be able to connect to proxy

Current Behavior

goproxy is giving i/o timeout when some clients try to connect.

Steps to Reproduce

1. Setup goproxy with the following command
2. proxy http -t tcp -p :8000 --auth-nouser --auth-url http://127.0.0.1:3000/auth
3. Connect to proxy via client
4. Proxy will give i/o on some clients. Not all however

Context (Environment)

1. proxy version is : commercial_12.5
2. full command is proxy http -t tcp -p :8000 --auth-nouser --auth-url http://127.0.0.1:3000/auth
3. system is : ubuntu 20.04
4. error example in log: 2023/01/22 00:38:52.883349 WARN decoder error , from 33.5.2.76:50727, ERR:http decoder read err: http decoder read err: read tcp 192.168.0.5:8000->33.5.2.76:50727: i/o timeout

Detailed Description

As I have discussed on telegram not all customers have this issue. Dev already said it is issue with client not sending correct http header.

Possible Implementation

This is the line of code on free version where the eror happens.

goproxy/utils/structs.go

Line 249 in f7b3a76

 err = fmt.Errorf("http decoder read err:%s", err) 

I also noticed the maximum bytes used on conn.Read() is defined as 4096 as seen at

goproxy/services/http.go

Line 72 in 03670bf

 req, err := utils.NewHTTPRequest(&inConn, 4096, s.IsBasicAuth(), &s.basicAuth) 

Note: I have the commercial version

[snail007]

try increase read buffer, --http-header-buffer=8192 or greater