On 11/08/12 12:30 AM, Amos Jeffries wrote:
On 11/08/2012 7:22 p.m., Jack Bates wrote:
I am interested in intercepting content as it is written to the cache,
and computing a digest from the content. Do you know if this can be
done in some kind of add on, or would it require a change to the core?
What type of digest and to what purpose?
I was thinking of using OpenSSL
SHA256_Init()/SHA256_Update()/SHA256_Final(). The purpose I have in mind
is to detect identical content at different URLs
Given a response with a "Location: ..." header and a "Digest:
SHA-256=..." header (such as from MirrorBrain), if the URL in the
"Location: ..." header is not already cached but the "Digest:
SHA-256=..." header matches the content at some other URL that is
already cached, then I want to update the "Location: ..." header with
the cached URL. I think this should redirect clients to mirrors that are
already cached
