[PATCH] mod_disk_cache: change handling of varied contents

[Paul Querna <ch...@force-elite.com>]

The attached patch changes how we store the contents of a varied URI.

If a URI is varied, all variations will be stored underneath a new
<hash>.header.vary/ directory.

This enables future tools, such as the ability to easily delete a URI
from the cache, without scanning the entire tree, just to find the
possible varied versions.

The code was written pretty quickly, and I would love some feedback both
on the idea, and the hacky way I did it :)

-Paul

Re: [PATCH] mod_disk_cache: change handling of varied contents

["Akins, Brian" <Br...@turner.com>]

On 7/20/05 11:25 AM, "Paul Querna" <ch...@force-elite.com> wrote:

> If a URI is varied, all variations will be stored underneath a new
> <hash>.header.vary/ directory.

Looks good for starters.

Good idea.

I would like a way to override some varies.  For example, in a reverse proxy
situation, you may vary on "User-Agent" header for gzip stuff.  However, you
really only care whether the user-agent can do gzip or not, you do not want
to store a different version for every browser.

May be something like this in config:

VaryValue User-Agent gzip

Where gzip is an environment value set by SetEnv if or something similar.


This may have been discussed before.