On Apr 18, 2013, at 10:32 PM, Patrick Ben Koetter wrote:
>And that handler would be - excuse my ignorance I don't program - a Python
>function to handle a Python program? Could the handler pass a message over to
>e.g. SpamAssassin (Perl) or openDKIM (c code) or any other non Python program
>without the need to add any additional (Python) code?
In Mailman 3, it would be a class implementing an interface.
I still think this wouldn't be a handler, but a rule. Although there's no
such distinction in MM2, there is in MM3: rules don't modify the message,
handlers do.
E.g. the IRule interface has a check() method that takes three arguments, the
mailing list, the message, and the metadata. It returns a boolean specifying
whether the rule matches or not.
Thus a SpamAssassin rule might look like:
@implementer(IRule)
class SpamAssassin:
# See IRule for details.
name = 'spamassassin'
description = _('See if SpamAssassin thinks this message is spam')
record = True
def check(self, mlist, msg, msgdata):
spam_score = shell_out_to_sa(msg)
msgdata['spamassassin_score'] = spam_score
return spam_score > some_threshold
-Barry
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