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Re: Common Log format

From: Chris Adie <C.J.Adie@ed.ac.uk>
Date: Thu, 13 Apr 1995 09:57:38 +0000
To: www-talk@www10.w3.org
Message-Id: <9504130957.aa06423@uk.ac.ed.castle>
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
> 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


%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

You could also record an arbitary HTTP header using (eg)


Chris Adie                                   PLEASE NOTE NEW ADDRESS &
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Received on Thursday, 13 April 1995 04:58:35 UTC

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