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[Reference:<_A2097@delegate-en.ML_>]
Newsgroups: mail-lists.delegate-en

[DeleGate-En] Re: IMAP filter EXPUNGE
05 Feb 2003 16:04:46 GMT "Paul Rinear" <pfmeabdyi-gztgalkczkdr.ml@ml.delegate.org>


Hi,

I incorporated the changes you supplied into the source code and recompiled.
When I run

delegated -P143 SERVER=IMAP://mail.cmi-jobs.net ADMIN=postmaster@cmi..
PERMIT="*:*:*"

delegate functions as expected. When I add REJECT=imap//EXPUNGE to the
startup the imap server no longer allows me to logon - it repeatedly asks
for my username and password.

Any help would be greatly appreciated.

Sincerely,

Paul Rinear


----- Original Message -----
From: "Yutaka Sato" <feedback@delegate.org>
To: <feedback@delegate.org>
Cc: <pfmeabdyi-gztgalkczkdr.ml@ml.delegate.org>
Sent: Wednesday, January 29, 2003 3:32 AM
Subject: Re: [DeleGate-En] IMAP filter EXPUNGE


> On 01/28/03(07:45) you "Paul Rinear" <pfmeabdyi-gztgalkczkdr.ml@ml.delegate.org> wrote
> in <_A2091@delegate-en.ML_>
>  |I am trying to use Delegate to remove the EXPUNGE command from clients
sending to server. The idea here is company policy wants to leave all mail
on server and not allow user to permanently delete.
>  |
>  |I use:
>  |
>  |delegated -P143 SERVER=IMAP://mail:1443 ADMIN=postmaster@freedomweb..
PERMIT="*:*:*" FTOSV="noexp.cfi"
>  |
>  |to start the server. I have tried both FFROMCL and FTOSV using various
Rule-name with sed to remove EXPUNGE command, but nothing seems to work. My
gut feeling is that the method I am using cannot touch the actual command
stream.
>  |
>  |Is what I want to do possible?
>
> You can do it by replacing "tag EXPUNGE ..." command "XECHO tag NO ..."
> with FFROMCL filter.
> But I think such access control should be supported by DeleGate itself
> and I'll do it like enclosed patch.  With the patched DeleGate you can
> reject EXPUNGE command with the following parameter.
>
>   REJECT=imap//EXPUNGE
>
> Cheers,
> Yutaka
> --
>   @ @ Yutaka Sato <y.sato@delegate.org> http://www.delegate.org/y.sato/
>  ( - ) National Institute of Advanced Industrial Science and Technology
(AIST)
> _<   >_ 1-1-4 Umezono, Tsukuba, Ibaraki, 305-8568 Japan
> Do the more with the less -- B. Fuller
>
> diff -c ../delegate8.3.3/src/imap.c ./imap.c
> *** ../delegate8.3.3/src/imap.c Sat Sep  7 17:13:51 2002
> --- ./imap.c Wed Jan 29 17:11:19 2003
> ***************
> *** 128,133 ****
> --- 128,139 ----
>   sv1log("C: %s %s %s ****\n",qtag,qcmd,qarg);
>   }else sv1log("C: %s",req);
>
> + if( method_permitted(Conn,"imap",qcmd) == 0 ){
> + fprintf(tc,"%s NO %s\r\n",qtag,qcmd);
> + fflush(tc);
> + continue;
> + }
> +
>   if( ts == NULL ){
>   if( strcaseeq(qcmd,"XECHO") ){
>   while( *ap == ' ' || *ap == '\t' )
> diff -c ../delegate8.3.3/src/service.c ./service.c
> *** ../delegate8.3.3/src/service.c Fri Dec 20 01:50:50 2002
> --- ./service.c Wed Jan 29 17:10:00 2003
> ***************
> *** 245,250 ****
> --- 245,255 ----
>   else strcpy(protomethod,proto);
>   acceptable = DELEGATE_permit(Conn,protomethod,DST_HOST,DST_PORT,
>   shost,sport,serviceport(proto));
> + if( acceptable ){
> + if( DELEGATE_reject(Conn,protomethod,DST_HOST,DST_PORT,
> + shost,sport,serviceport(proto)) )
> + acceptable = 0;
> + }
>   HL_popClientInfo();
>   return acceptable;
>   }
>
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