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Subject [Bug 4179] [review] user rules are not unique to each user
Date Wed, 05 Dec 2007 10:04:55 GMT

------- Additional Comments From  2007-12-05 02:04 -------
(In reply to comment #10)
> the fix is slightly suboptimal; instead of just recompiling the methods to
> *remove* the user rule code on the next scan after the rule-defining user's
> scan, all future scans with that spamd child will also recompile those methods
> too.  But it works!

ok, I had a thought about how to fix this last night, and it's now implemented as:

: jm 210...; svn commit -m "bug 4179: only recompile once after user rules go
'out of scope'"
Sending        lib/Mail/SpamAssassin/Conf/
Sending        lib/Mail/SpamAssassin/
Sending        lib/Mail/SpamAssassin/Plugin/
Sending        t/spamd_user_rules_leak.t
Transmitting file data ....
Committed revision 601283.

Here's how it works: the want_rebuild_for_type 'flag' is actually a counter; it
is decremented after each scan.  This ensures that we always recompile at least
once more; once to *define* the rule, and once afterwards to *undefine* the rule
in the compiled ruleset again.

If two consecutive scans use user rules, that's ok -- the second one will
reset the counter, and we'll still recompile just once afterwards to undefine
the rule again.

(I renamed 'user_rules_to_compile' to the clearer 'want_rebuild_for_type', as
you can see)

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