dovecot - Sep 2009 - Sieve, vacation, variables and russian language

Folks,

I'm using a Sieve script for vacation messages and there's something
strange
with it in certain cases.

The script uses the "variables" extension to produce the "Re:
[original
subject] (autoreply)" subject line for the vacation message. 

All is well except for cases when that [original subject] is written in
Russian. 

In those cases the subject string is garbled, and the Amavis content filter
says 

"X-Amavis-Alert: BAD HEADER SECTION, Non-encoded 8-bit data (char D0
hex):Subject: RE: \320\277\321?\320\276\320\261\320\260 (Auto[...]"

It doesn't complain about English subject strings, though.

I've seen the thread about "Sieve vacation with russian subject"
at
http://www.dovecot.org/list/dovecot/2009-July/041031.html , 

but that wasn't quite a solution. 

I can't figure out how to work around that, could anyone help out please?

 

Mandatory info:

    FreeBSD 7.2 i386, dovecot 1.2.3, dovecot-sieve-1.2+0.1.11

 

And here's the script itself:

    require ["fileinto", "vacation", "variables"];

    set "subject" "";

    if header :matches "subject" "*" {

      set "subject" "${1}";

    }

    vacation :days 1 :subject "RE: ${subject}"

    "[vacation message text]";

 

P.S. Stephan Bosch, thank you very much for what you've done with sieve.

On Sat, 2009-09-12 at 01:59 +0400, Sergey Grigorian
wrote:
> The script uses the "variables" extension to produce the
"Re: [original
> subject] (autoreply)" subject line for the vacation message. 
> 
> All is well except for cases when that [original subject] is written in
> Russian. 
This is a TODO item:


 	- Vacation: the ":subject" parameter specifies a subject line to
attach to
 	  any vacation response that is generated. UTF-8 characters can be used in
 	  the string argument; implementations MUST convert the string to [RFC2047]
  	  encoded words if and only if non-ASCII characters are present.

I think the main reason this hasn't been implemented yet is that this
conversion isn't required anywhere else in Dovecot. So the first step
would be to create RFC 2047 encoder for Dovecot. Feel free to implement
one. :)

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On Fri, 11 Sep 2009 18:05:34 -0400, Timo Sirainen <tss at iki.fi>
wrote:
> On Sat, 2009-09-12 at 01:59 +0400, Sergey Grigorian wrote:
>> The script uses the "variables" extension to produce the
"Re: [original
>> subject] (autoreply)" subject line for the vacation message. 
>> 
>> All is well except for cases when that [original subject] is written in
>> Russian. 
> 
> This is a TODO item:
> 
> 
>  	- Vacation: the ":subject" parameter specifies a subject line
to attach
>  	to
>  	  any vacation response that is generated. UTF-8 characters can be used
>  	  in
>  	  the string argument; implementations MUST convert the string to
>  	  [RFC2047]
>   	  encoded words if and only if non-ASCII characters are present.
> 
> I think the main reason this hasn't been implemented yet is that this
> conversion isn't required anywhere else in Dovecot. So the first step
> would be to create RFC 2047 encoder for Dovecot. Feel free to implement
> one. :)
Oh well. Should've read the TODO with more attention.
Thanks a lot, it all is clear now.
Honestly, I suck at implementing, but might give it a try (if nobody more 
able will do that, that is). :)