[typo] Etag / Last-Modified headers

Scott Laird scott at sigkill.org
Wed Sep 13 11:34:37 EDT 2006

File a bug, and I'll look at it when I can.  Last-modified is easy
enough, we'll just add it to our cache code.  I'm not sure about


On 9/13/06, Alastair Rankine <arsptr at internode.on.net> wrote:
> Typographers,
> One question that has been bugging me about Typo for a while now is:
> does Typo emit Etag or Last-Modified HTTP headers, suitable for web
> caches to use? This is particularly important for the oft-requested
> feeds.
> Today I finally took the time to find out. The answer seems to be
> that Typo doesn't emit either of these headers.
> So, the obvious next question is: how hard is it to add one of these
> headers? And what about the corresponding conditional GET?
> Dan Kubb's REST controller for rails (http://onautopilot.com/oss/
> rails/rest_controller.rb) looks to provide a leg-up, but we still
> need to calculate the actual header ETag and Last-Modified values.
> These need to be set as instance variables in the XML controller.
> Could the *_feed.rxml views be used to set these? In particular it
> looks like the Last-Modified value could be set from prettymuch the
> same value used for the Atom "updated" field (ie
> @items.first.updated_at.xmlschema) - a fairly low impact change I
> would think? ETag might need something a big more sophisticated...
> This is obviously not very well thought through, but are there any
> initial reactions?
> _______________________________________________
> Typo-list mailing list
> Typo-list at rubyforge.org
> http://rubyforge.org/mailman/listinfo/typo-list

More information about the Typo-list mailing list