Re: [Dovecot] hwo can i have managesieve protocol and cmusieve plugin work at the same time

2009-03-08 Thread Stephan Bosch

Jelle de Jong wrote:

-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

Hello everybody,

I would like to use managesieve protocol and cmusieve plugin at the same
time.

I have used the cmusieve plugin for years and I now also enabled the
managesieve system. I got the managesieve system working but when I
activate the managesieve filter for the user the cmusieve sieve filter is
not used anymore.
Yes, that is difficult for Dovecot v1.1 and there is no real good 
workaround. The Sieve implementation for Dovecot v1.2 does have support 
for executing multiple Sieve scripts sequentially, making it possible to 
truly force execution of the administrator's script before the user's 
script.



How can I have both sieve systems working, the cmusieve is for a global
all user spam filter, and the managesieve is for one user only. I don't
want the user to have control over the spam sieve filter, because other
systems depend on the location where spam is archived.

As a workaround, one may think it is possible to have your global 
x-spam-flag.sieve include the user's sieve script with the include 
extension. This will work, however, the CMUSieve plugin requires any 
included Sieve script to exist. A nasty side effect of this is that any 
user who deactivates his Sieve script through ManageSieve ends up 
deleting the link to it on the server. This will break the include from 
the global Sieve script and end its execution.


I am not sure whether there is a proper workaround to achieve something 
like this for Dovecot versions prior to v1.2. Can't think of any...


Regards,

Stephan



Re: [Dovecot] hwo can i have managesieve protocol and cmusieve plugin work at the same time

2009-03-08 Thread Jelle de Jong
Stephan Bosch wrote:
 Jelle de Jong wrote:
 -BEGIN PGP SIGNED MESSAGE-
 Hash: SHA1

 Hello everybody,

 I would like to use managesieve protocol and cmusieve plugin at the same
 time.

 I have used the cmusieve plugin for years and I now also enabled the
 managesieve system. I got the managesieve system working but when I
 activate the managesieve filter for the user the cmusieve sieve filter is
 not used anymore.
 Yes, that is difficult for Dovecot v1.1 and there is no real good 
 workaround. The Sieve implementation for Dovecot v1.2 does have support 
 for executing multiple Sieve scripts sequentially, making it possible to 
 truly force execution of the administrator's script before the user's 
 script.
 
 How can I have both sieve systems working, the cmusieve is for a global
 all user spam filter, and the managesieve is for one user only. I don't
 want the user to have control over the spam sieve filter, because other
 systems depend on the location where spam is archived.

 As a workaround, one may think it is possible to have your global 
 x-spam-flag.sieve include the user's sieve script with the include 
 extension. This will work, however, the CMUSieve plugin requires any 
 included Sieve script to exist. A nasty side effect of this is that any 
 user who deactivates his Sieve script through ManageSieve ends up 
 deleting the link to it on the server. This will break the include from 
 the global Sieve script and end its execution.
 
 I am not sure whether there is a proper workaround to achieve something 
 like this for Dovecot versions prior to v1.2. Can't think of any...
 
 Regards,
 
 Stephan
 

Hi Stephan, thank you for your work, I own you a beer!

I can wait a bit more for the cmusieve plugin to work next to managesieve
protocol, is there a bug report that I can subscribe to so I know when it
will work? Is it a planned feature for the next release? It was just a
bid unexpected that activating a users managesieve filter will break the
excising global cmusieve plugin.

Thanks in advance,

Jelle de Jong






Re: [Dovecot] hwo can i have managesieve protocol and cmusieve plugin work at the same time

2009-03-08 Thread Stephan Bosch

Jelle de Jong wrote:

Hi Stephan, thank you for your work, I own you a beer!

Hehe, looks like we share a country, so I may take you up on that offer :)


I can wait a bit more for the cmusieve plugin to work next to managesieve
protocol, is there a bug report that I can subscribe to so I know when it
will work? Is it a planned feature for the next release? It was just a
bid unexpected that activating a users managesieve filter will break the
excising global cmusieve plugin.

Well, the main problem is not that CMUSieve and ManageSieve don't work 
together. Keep in mind that ManageSieve uses the CMUSieve plugin to 
perform the actual execution of the script, so these are not conflicting 
in any way. Rather, CMUSieve does not support executing the global Sieve 
script and the personal user script sequentially: currently these are 
mutually exclusive.


The new Sieve plugin for Dovecot v1.2 supports this using the 
sieve_before setting:


http://hg.rename-it.nl/dovecot-libsieve/file/tip/INSTALL

So, for Dovecot v1.2 this is already fixed (still needs to be tested 
more though).  Implementing this for Dovecot v1.0/v1.1 with CMUSieve 
requires significant changes and I don't think it is worth doing so, 
because CMUSieve is being replaced with the new implementation for 
Dovecot v1.2. Therefore, I think 'waiting' will mean waiting until you 
are prepared to use v1.2 (e.g. when it is deemed to be stable).


Regards,

Stephan Bosch