Adding a spam processor

[Piers Cawley <pdcawley-ding@bofh.org.uk>]

So, I started work on a Spamassassin spam processor now that
Spamassassin has its own rather lovely Bayesian system.

What I'd hoped to do was to have a spam-spamassassin.el which would
have all the spamassassin related code, without having to alter any of
the main gnus distribution files (mostly because I want to be able to
distribute the resulting code without having to fart about signing
papers). 

But, of course, I can't. 

In an ideal world, I want to be able to do

(spam-add-post-processor "spamassassin")

and have that magically insert the appropriate entries into the
spam-process gnus-group parameter definition, tweak
spam-summary-prepare-exit, etc. 

But on looking at the code, everything appears to be hardwired. So
would there be an interest in adding things like:

(gnus-group-param-add-choices (PARAM &rest CHOICES))

and modifying spam-summary-prepare-exit to be rather more dynamic? 

Also, on a Spamassassin specific note, Spamassassin currently does a
quite dramatic modification of messages that it thinks are spam,
hiding the original message away in a MIME part. This can be stripped
away with 'spamassassin -d'. It occurs to me that this could be dealt
with rather neatly by adding a 'filter' parameter to
gnus-summary-move-article (or adding a new function), which would
filter the message through an arbitrary command before inserting it in
the destination mailbox.

-- 
Piers