Standalone cache according to http requests

Maybe this already exists but since my searches didn’t turn up anything, i thought i’d post this.

You have an app coded more or less rest style. Every post request implies there was a data change (-> cache becomes stale), every get request implies there was no change in the data (-> cache stays fresh). So you know that if a post request was made to domain.com/admin/news, the news cache becomes stale. I won’t go really deep here, in that if you change item 8 of the news table, you might only have 2 stale caches, the one that lists the news and the one that shows item 8 of the news table ( ie. domain.com/news and domain.com/news/8 or domain.com/news/title-of-article) and not every cache belonging to the news group but let’s keep it simple here.

I would like to know if there’s anything out there that parses the apache logs for post requests and if there was a post/put/delete in any url, according to a few configurable rules, it will automatically do a get to the correspondent url. For example, if a post was made to domain.com/admin/news/8 then it would be able to, upon parsing of the apache logs, do a get request to domain.com/news/8, generating the cache for the next user that comes along instead of waiting for the next user to generate a fresh cache - keeping him waiting . It would just increase the cache hit ratio per user. It would of course run as a cron job.

I like this solution because it really keeps the caching code (if cache exists, expire cache, use cache, etc) outside the app, becoming simply another layer, where it really should be.

I really think that this makes sense from a rest perspective so i suspect it’s already out there..

So anyone know of anything? Preferably in php, but python or ruby is ok too.

Thanx :=)