For one reason or another, I need to be able to invalidate cache entries in some mod_cache caches. There's no "good" standard for this, WCIP/BEEP went nowhere afaict, but I want to keep things simple. The way Squid handles this is by implementing a non-standard PURGE HTTP method, so I've taken the same approach here - in a very basic patch.
The patch actually works, you can call; PURGE /foo HTTP/1.1 Host: example.org Accept: foo/bar and it will actually go and remove the item from whatever cache its in, with the entity being negotiated as per the Accept headers. But before I move on to tidying it up to return better codes, work behind ACLs/auth, handle the uncached case better and add a PurgeEnable directive (or similar) - is this style of invalidation something suitable for httpd at all? or would people prefer to see something more like mod_proxy_balancer's full-scale html interface for doing this kind of thing at run-time? -- Colm
purge.patch
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