Re: Common Log format
Joel Crisp (Joel.Crisp@bristol.ac.uk)
Thu, 13 Apr 1995 06:43:10 +0500
> From www-talk@www10.w3.org Thu Apr 13 11:29 BST 1995
> Date: Thu, 13 Apr 1995 05:00:10 +0500
> Originator: www-talk@mail.w3.org
> From: Chris Adie <C.J.Adie@ed.ac.uk>
> To: Multiple recipients of list <www-talk@www10.w3.org>
> Subject: Re: Common Log format
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> WWW-TALK
>
> brian@hotwired.com wrote:
> > The choice is yours if you're going to change from logging the actual
> > request to logging the actual object served; maybe this is an issue for
> > CLF-NG. A few of us have ideas about that - like maybe it should really
> > just be an API whose expression can be a simple string of variables,
> > like
> >
> > $HOST $IDENTD $AUTHUSER [$MDAY/$MN/$YR:$HR:$MN:$SC $GMT] "$REQUEST" $ERRCODE $LENGTH
> >
> > to represent the current CLF. This string could be shared with log file
> > analysers and other applications that required it.
>
> I've been thinking about this too. Let's call the string a "log
> template". Why not base it on the strftime() function? The current
> CLF would be:
>
> %R %i %u [%d/%m/%Y:%H:%M:%S %O] "%q" %s %n
If you do this, PLEASE make the field separator consistent - particularly
as the date/time in the above string is so hard to parse with tools like
'awk'
>
> where:
>
> %R remote client name
> %i user ident
> %u authenticated user name
> %O offset from GMT
> %q literal request from client
> %s status code
> %n number of bytes sent
>
> and the others are as defined by strftime().
>
> Other things you might want are:
>
> %l IP address the request was received on
> %L host name corresponding to %l
> %Q document actually served
> %r remote client IP address
> etc
>
> You could also record an arbitary HTTP header using (eg)
> %:user-agent:
>
> Regards,
>
> Chris Adie PLEASE NOTE NEW ADDRESS &
> Edinburgh University Computing Service PHONE/FAX NUMBERS!
> James Clark Maxwell Building Phone: +44 131 650 6773
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> Edinburgh EH9 3JZ, United Kingdom Email: C.J.Adie@ed.ac.uk
>
Joel