Spamlearn: Addestrare Spamassasin

Grazie a ziobudda ho scoperto questo interessante giochino, ossia insegnare a spamassasin da un’archivio di mail di spam, dato che pero le mail sono tante ci vuole anche uno script che vi riporto qui sotto visualizzato da GESHI

#!/bin/sh
# spamlearn -- paolo(AT)psycostudio.org -- modificato da yoghi(AT)sigmalab.net
#
# The spamlearn is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option) any later
# version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program. If not, write to the Free Software Foundation, Inc., 59 Temple
# Place - Suite 330, Boston, MA 02111-1307, USA.
#

SPAMARCH="/var/cache/spam"

root () {
	if [ x"`id -u`" != "x0" ] ; then
		echo "Errore: Lo script puo essere avviato solamente come utente root"
		exit 1
	fi
	return 0
}

download_spam() {
	cd $SPAMARCH
	echo -n "Sto scaricando l'archivio..."
	if [ `wget -N -r -nd -o $SPAMARCH/wget-log ftp://spamarchive.org/pub/archives/submit/ &` ]; then
		echo "Errore";
	else
		echo "Ok"

fi
}


spamlearn() {
	echo "Starting spamlearn() (Spamlearn)..."
	/etc/init.d/postfix stop
	/etc/init.d/spamd stop
	cd $SPAMARCH

	if test ! -f "$SPAMARCH/spam_checked"; then
		touch $SPAMARCH/spam_checked
	fi

	for i in *.gz;
	do

	## Controllo se esistono dei file di Spam.
	if [ $i != "*.gz" ]; then
		CHECK=`cat $SPAMARCH/spam_checked | grep $i`;

	if [ "$i" != "$CHECK" ]; then
		echo -n "Sto processando il file $i: "
	if [ `gunzip -c $i > /tmp/spam$i.file | sa-learn --spam --showdots --mbox /tmp/spam$i.file` ];then
		echo "C'e un errore con il file $i"
	else
		echo "E' stato controllato il file $i"
		`echo $i >> $SPAMARCH/spam_checked`
		`rm /tmp/spam$i.file`
	fi
	else
		echo "Skip: Il file di spam $i, gia controllato.";
	fi
	else
		echo "Non ci sono files di spam da controllare."
	fi

	done
	/etc/init.d/spamd start
	/etc/init.d/postfix start
}

start() {
	download_spam || true
	spamlearn || true

}

trap 'echo "Trap-handler: Terminazione controllata del processo..."' 2

if [ -x $SPAMARCH ] ; then
	start
echo
else
	echo "Errore: Non esiste la directory $SPAMARCH"
	echo "Creo la directory specificata"
	mkdir $SPAMARCH
	start
fi