On Tue, 2006-05-02 at 02:54 +0400, taras@elantech.ru wrote:

I need recomendations from experienced people about described situation. Is it's good practice practice to add "hook" to IMAP server for reaching user-friendly server-side antispam training?

I do that, but it's much more userfriendly than multiple folders: http://johannes.sipsolutions.net/Projects/dovecot-dspam-integration/

johannes

Johannes Berg пишет:

On Tue, 2006-05-02 at 11:27 +0200, Johannes Berg wrote:

...

I do that, but it's much more userfriendly than multiple folders:

Actually, I misunderstood what you're doing. But you can change my plugin to do exactly what you were looking for by simply doing some other action than calling dspam when a user moves messages.

johannes

I rebuild dspam for making strlen() of spam and not spam tags equivalen each to other. I use only one spam folder, as you, but without any links or such things. Here is script to understand what I'm doing:

---------- BEGIN

use DBI; use File::Find;

$user = "root"; $database = "mail"; $password = "****";

$spam_subfolder = ".SPAM";

$SENDER = "";

$SPAM_TAG = "SpamXXXX"; $HAM_TAG = "Innocent"; $DSPAM_TAG = "X-DSPAM-Result:";

$curfile = "";

$ST = $IT = $SR = $IR = $AM = $AA = 0;

my $DBH = DBI->connect("DBI:mysql:$database", $user, $password) or die "I can't connect! Error: $DBI::errstr\n";

my $sqlm = "SELECT email, homedir, maildir, uid, gid FROM 

postfix_users"; my $sthm = $DBH->prepare($sqlm); $sthm->execute; my ($email, $homedir, $maildir, $uid, $gid); $sthm->bind_columns(undef, \($email, $homedir, $maildir, $uid, $gid));

while($sthm->fetch){

# find files in /.spam subfolder
# and retrain dspam with mistake files

    my $spamdir = $homedir . "/" . $maildir . $spam_subfolder ;
    my $hamdir = $homedir . "/" . $maildir;

    $spamdir_cur = $spamdir . "/cur";
    $spamdir_new = $spamdir . "/new";
    $spamdir_tmp = $spamdir . "/tmp";

    $SENDER = $email;
   
    $ST = $IT = $SR = $IR = 0;
   

# SPAM
print "Training SPAM for user $email in $spamdir_cur...\n";
find(\&wanted_spam, $spamdir_cur); find(\&wanted_spam, $spamdir_new);
# HAM
print "Training HAM for user $email in $hamdir\n"; find(\&wanted_ham, $hamdir);
$AM = $ST+$IT; print "Stats for user $SENDER:\n"; print "Total messages : " . $AM . "\n"; print "Spam total: " . $ST . "\n"; print "Innocent total: " . $IT . "\n";
print "HAM -> SPAM: " . $SR . "\n";
print "SPAM -> HAM: " . $IR . "\n";
$AA += $AM; }

print "Total messages :" . $AA . "\n";
print `date`;

$sthm->finish(); $DBH->disconnect();

#-----------------------------------------------------

sub wanted_spam {

if ( -f $_) {
$ST += 1;
my $yes = 0;
$curfile = $_;
open("FD", "+<", $_) || die "Can't open file $_\n";
    flock FD, LOCK_EX || die "Can't lock file $_\n";

    while($str = <FD>){
        if($str =~ /$DSPAM_TAG/){
            $tag = $';
        if($tag =~ /$HAM_TAG/){           
            print "$HAM_TAG found: Rewriting!\n";
            print "File: $curfile\n";
            print "Dir: $File::Find::dir\n";               
            seek(FD, - (length($SPAM_TAG) + 2), 1);
            print FD " $SPAM_TAG";
            seek(FD, -1, 2);
            $yes = 1;
            $SR += 1;
        }else
        {
            if($tag =~ /" $SPAM_TAG"/){           
            print "$SPAM_TAG found: OK!\n";
            }
        }               
        }   
    }

    flock FD, LOCK_UN || die "Can't RElock file $_\n";   
        close(FD);               
    if($yes == 1){
    `cat '$curfile'| /usr/local/bin/dspam --user $SENDER 

--class=spam --source=error --deliver=`;
} } }

sub wanted_ham {

if("$File::Find::dir" ne "$spamdir_cur" && "$File::Find::dir" ne 

"$spamdir_new" && "$File::Find::dir" ne "$spamdir_tmp")
{

if ( -f $_) {
$IT += 1;
my $yes = 0;
$curfile = $_;
open("FD", "+<", $_) || die "Can't open file $_\n";
    flock FD, LOCK_EX || die "Can't lock file $_\n";

    while($str = <FD>){
        if($str =~ /$DSPAM_TAG/){
            $tag = $';
        if($tag =~ /$SPAM_TAG/){           
            print "$SPAM_TAG found: Rewriting!\n";
            print "File: $curfile\n";
            print "Dir: $File::Find::dir\n";
            seek(FD, - (length($HAM_TAG) + 2), 1);
            print FD " $HAM_TAG";
            seek(FD, -1, 2);
            $yes = 1;
            $IR += 1;
        }else
        {
            if($tag =~ /" $HAM_TAG"/){           
            print "$HAM_TAG found: OK!\n";
            }
        }               
        }   
    }
    flock FD, LOCK_UN || die "Can't RElock file $_\n";   
        close(FD);               

    if($yes == 1){       
    `cat '$curfile' | /usr/local/bin/dspam --user $SENDER 

--class=innocent --source=error --deliver=`; } } } }

--------- END

I think, that easiest method to don't scan folders is simple log message moving between folders by IMAP server. What do you think about this?

-- С уважением, Савчук Тарас "ЭЛАНТЕК" +7 (495) 589 68 81 +7 (926) 575 22 11 http://www.elantech.ru