[squid-users] Is jesred still compatible with squid 4.x?

[Eliezer Croitoru]

Hey,

So it seems pretty simple.
Your helper is very good and simple for the task and at-least we know 
that if your helper works it's something with jesred 100%.
I do not know german but it's not really a big deal to understand when 
you actually know how things works in general.
I do not know what settings exactly you need but you can take a look at 
squid sources:
http://bazaar.launchpad.net/~squid/squid/trunk/view/head:/src/store/id_rewriters/file/storeid_file_rewrite.pl.in

Which is a very simple perl script that works with a "config" file.
It was designed to work with StoreID and some examples are at:
http://wiki.squid-cache.org/Features/StoreID/DB

But I really do not think that for a simple task such as this a special 
compiled version of jesred will be much more efficient then the python 
or perl scripts.
This is also since jesred doesn't implement any form of concurrency support.

I have been working on an improved compiled version(Golang) of a helper 
such as the above perl one but yet to have seen a really good use case 
that will benefit from that too much.

It is not 100% clear to me how the apt-cacher-ng decides which host to 
fetch the requests from but if it works then it is.

All The Bests,
Eliezer

On 29/02/2016 02:34, Karl-Philipp Richter wrote:
> Hi,
>
> Am 29.02.2016 um 01:13 schrieb Eliezer Croitoru:
>>
>> I do not remember if I have tried to work with such a setup in the past
>> but, can you give some technical details on the desired setup?
> I want to manipulate URLs for Ubuntu and Debian .deb packages download
> requests (usually for fixed (ftp.debian.org) or predictable URLs
> ([country].ubuntu.archive.com) which are passed to squid used as
> intercepting HTTP cache to be served by an `apt-cacher-ng` instance.
> Configuration for clients and VMs running on clients should be zero.
>
>> Are there any written documentations about such a setup already? if so can you redirect me to one of these?
> Depends on your german skills:
> https://forum.ubuntuusers.de/topic/squid-transparent-und-apt-cacher-ng/
>
>> Basically the jesred program as far as I remembered it was not developed for a very long time but I have found the next sources:
>> https://github.com/sawcache/jesred/blob/master/main.c#L166
>>
>> Which indicates that someone did something with it to somehow work with Squid 3.5+ including 4.X.
>> If I would have known more about the setup I would probably be able to answer the question.
> This still seems quite fragile, e.g. there's no automatic installation
> routine (which I suggested as autconf setup in pull request
> https://github.com/sawcache/jesred/pull/2). I'd like this fixed or
> solved somehow to get some activity in the project as well. Otherwise
> I'm not too eager to contribute since my script at
> https://github.com/krichter722/apt-cacher-ng-rewriter works for now, but
> isn't overly complicated and not configurable.
>
>> Also what changes in 4.X communications are you talking about?
>> The changes I know about are from 3.4-3.5
> I was referring to probable communication changes which "might" have
> been implemented - I've already made bad experience with (and filed bugs
> about) outdated `squid` documentation, so I prefer to ask.
>
> It might just be the case that `apt-cacher-ng` doesn't accept the output
> of `jesred` (failure described above), but I'm wondering what could
> there be wrong given the fact that my script works and this
> communication protocol is no rocket science. That was the original
> reason for my question/request for feedback.
>
> -Kalle
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