Hi all
The Memento Project <http://www.mementoweb.org/> (including the Los Alamos
National Laboratory (!) featuring Herbert Van de Sompel of OpenURL fame) is
proposing a new HTTP header, X-Accept-Datetime, to fetch old versions of a web
resource. They already wrote a MediaWiki extension for this
<http://www.mediawiki.org/wiki/Extension:Memento> - which would of course be
particularly interesting for use on Wikipedia.
Do you think we could have this for Wikimedia project? I think that would be
very nice indeed. I recall that ways to look at last weeks main page have been
discussed before, and I see several issues:
* the timestamp isn't a unique identifier, multiple revisions *might* have the
same timestamp. We need a tiebreak (rev_id would be the obvious choice).
* templates and images also need to be "time warped". It seems like the
extension does not address this at the moment. For flagged revisions we do have
such a machnism, right? Could that be used here?
* Squids would need to know about the new header, and by pass the cache when
it's used.
so, what do you think? what does it take? Can we point them to the missing bits?
-- daniel