[Dovecot] Using IMAP keywords instead of mailboxes for spam with dovecot-antispam

[Timo Sirainen]

On Thu, 2008-03-20 at 15:16 +0100, Johannes Berg wrote:

> The thing is that I don't know what context the update_keywords function
> runs in and whether it has a transaction at all, so I don't know how to
> roll back. I suppose it would be possible to grab the original keyword
> list before invoking super.update_keywords() and then resetting to that
> if the backend fails...

I haven't looked at your code, but struct mail always has a transaction
(mail->transaction). You could fail the transaction by hooking into
transaction_commit and calling rollback if your internal failure-flag
was set.

But that sounds a bit extreme. Aren't you just adding/removing a single
keyword? If so, you can use mail_update_keywords() to just add/remove
that without reading/touching other keywords.

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