[Tfug] Squid help?

[Jude Nelson]

Hi Harry,

I'm running Debian 5.0.  My Python HTTP server listens on port 4000.  My
Squid daemon listens on 3128.  I thought Squid could access
/var/spool/squid3 for caching files?  All I need to do is get my application
to put a copy of the file somewhere for Squid to find.  I figured the
easiest way to do that would to have an HTTP server running on localhost,
and have the application use Squid as a proxy to the server so that a GET on
the file would go through Squid, causing a cache miss and causing Squid to
cache the file automatically.

Thanks,
Jude

On Sat, Dec 5, 2009 at 11:49 PM, Harry McGregor <micros at osef.org> wrote:

> Jude Nelson wrote:
> > Hey all,
> >
> > I'm trying to use Squid as a file caching mechanism to fill the
> > following role:
> >
> > (0) the application starts an HTTP server (Python's default one) on
> > localhost
> > (1) the application needs to get a file
> > (2) the application asks local Squid daemon for the file
> > (3a) if Squid has it, it gives the application the file and the
> > application processes it
> > (3b) if Squid does not have it, the application will:
> > (3b(a)) download the file
> > (3b(a)) put the file into Squid by issuing an HTTP GET request to
> > localhost; Squid, being a proxy between the application and the HTTP
> > server set up in (0) reads the file into its cache
> >
> > Basically, I'm trying to use Squid as a local file cache.  It will not
> > be accessible from any host except localhost.  However, I can't ever
> > establish a connection with Squid--any HTTP GETs I try to pass through
> > Squid, either to a file on localhost or to file on a remote host,
> > always result in HTTP 400.  Each line in my
> > /var/cache/squid3/access.log file looks like this:
> >
> > 1259687247.985      0 127.0.0.1 NONE/400 1989 GET
> > /home/jude/Desktop/finals.txt - NONE/- text/html
> >
> > (the aforementioned line was generated via a GET to
> > "http://localhost:3128/home/jude/Desktop/finals.txt").  My firewall
> > settings allow Squid; in fact, turning off the firewall has no effect.
>
> I presume you are talking to squid on it's default port of 3128...
>
> Squid does not have access to the file system, it only has access to
> either http hosts or other protocols you configure it for.
>
> I don't know the syntax to pass an http request through squid manually,
> but you should be able to "export http_proxy="http://localhost:3128" and
> use it to reach a web servr locally.
>
> what OS platform are you on / distro, etc
>
> What port is your python webserver listening on?
>
> >
> > I am not very familiar with Squid's default settings, and Google has
> > yet to reveal anything useful.  Is there something I need to
> > add/remove to the config?  My ACL already allows requests from
> > localhost, and I haven't changed the default HTTP port.  Is Squid even
> > capable of fulfilling the roll I want it to fulfill?
> >
>
>                          Harry
>
>
> > Thanks,
> > Jude
> > ------------------------------------------------------------------------
> >
> > _______________________________________________
> > Tucson Free Unix Group - tfug at tfug.org
> > Subscription Options:
> > http://www.tfug.org/mailman/listinfo/tfug_tfug.org
> >
>
>
> _______________________________________________
> Tucson Free Unix Group - tfug at tfug.org
> Subscription Options:
> http://www.tfug.org/mailman/listinfo/tfug_tfug.org
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://tfug.org/pipermail/tfug_tfug.org/attachments/20091206/18355b75/attachment-0002.html>