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From Greg Stein <>
Subject Re: Any plans for RFC3744
Date Mon, 14 Jun 2004 20:06:39 GMT
On Mon, Jun 14, 2004 at 09:49:58AM -0700, Bennett, Tony - CNF wrote:
> Are there any plans afoot to implement support
> for RFC3744 - WebDav ACL, either as a stand-alone
> module or by modifying mod_dav/mod_dav_fs ???

Hey Tony :-)

I'm not sure that anybody has specifically looked at it yet. I do know
that the Subversion guys would be interested in seeing the framework in
Apache so that they can use it, so there is possible dev/time from that
angle. Within the httpd developers... not sure.

As for whether it would be part of mod_dav, or a companion module... I'm
not sure. Ideally, the ACL support would cut across all HTTP interactions,
and it would use Apache's standard authorization hook. In that sense, it
might not be necessary to make it part of mod_dav. However, I would hope
that it enables a backend approach similar to mod_dav (there is a lot of
basic processing the frontend could do, before passing it to the back).

It might be tricky to coordinate things like PROPFIND across modules,
which may be a reason to integrate them. Personally, I'd hope for a
separable solution, and one that is generally applicable to the whole
server, rather than just DAV-enabled areas.

I believe any default implementation would require some kind of file-based
storage on the server, and/or DBM database. The problem here is that any
ACL changes would need to reach all the Apache child processes. IPC is a
bitch, so dropping the stuff on the disk is best, where the processes can
see what the "current" state is.

Have you applied much thought to the issue yet?


Greg Stein,

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