[squid-users] how to avoid use http/1.0 between squid and the target

[David Komanek]

> Date: Thu, 23 Nov 2023 01:44:30 +1300
> From: Amos Jeffries <squid3 at treenet.co.nz>
> To: squid-users at lists.squid-cache.org
> Subject: Re: [squid-users] how to avoid use http/1.0 between squid and
> 	the target
> Message-ID: <ec400901-951e-4112-ac53-ae8cd3351301 at treenet.co.nz>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> On 22/11/23 23:03, David Komanek wrote:
>> Hello,
>>
>> I have a strange problem (definitely some kind of my own ignorance) :
>>
>> If I try to access anything on the site https://www.samba.org WITHOUT
>> proxy, my browser negotiate happily for http/2 protocol and receives all
>> the data. For?http://www.samba.org WITHOUT proxy it starts with http/1.1
>> which is auto-redirected from http to https and continues with http/2.
>> So far so good.
>>
>> But WITH proxy, it happens that squid is using http/1.0.
> That is odd. Squid should always be sending requests as HTTP/1.1.
>
> Have a look at the debug level "11,2" cache.log records to see if Squid
> is actually sending 1.0 or if it is just relaying CONNECT requests with
> possibly HTTP/1.0 inside.
>
Hello,

here are the debug logs (IP addresses redacted) after connection attempt 
to https://samba.org/ :

----------
2023/11/27 09:58:07.345 kid1| 11,2| client_side.cc(1332) 
parseHttpRequest: HTTP Client conn21570 local=195.113.x.y:3128 
remote=10.10.a.b:53868 FD 666 flags=1
2023/11/27 09:58:07.345 kid1| 11,2| client_side.cc(1336) 
parseHttpRequest: HTTP Client REQUEST:
---------
CONNECT samba.org:443 HTTP/1.1
Host: samba.org:443
Proxy-Connection: keep-alive
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, 
like Gecko) Chrome/119.0.0.0 Safari/537.36


----------
2023/11/27 09:58:07.370 kid1| 11,2| Stream.cc(273) sendStartOfMessage: 
HTTP Client conn21576 local=195.113.x.y:3128 remote=10.10.a.b:16730 FD 
1267 flags=1
2023/11/27 09:58:07.370 kid1| 11,2| Stream.cc(274) sendStartOfMessage: 
HTTP Client REPLY:
---------
HTTP/1.1 400 Bad Request
Server: squid/6.5
Mime-Version: 1.0
Date: Mon, 27 Nov 2023 08:58:07 GMT
Content-Type: text/html;charset=utf-8
Content-Length: 3363
X-Squid-Error: ERR_PROTOCOL_UNKNOWN 0
Cache-Status: pteryx.natur.cuni.cz
Via: 1.1 pteryx.natur.cuni.cz (squid/6.5)
Connection: close

So, it seems it's not true that squid is using http/1.0, but the guy on 
the other side told me so. According to the log, do you think I can 
somehow make it working or is it definitely problem on the samba.org 
webserver?

Thanks again,

   David


> HTH
> Amos
>