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dspam-learn
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dspam-learn
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#!/bin/bash
set -euo pipefail
# normally this is a good idea, but in this case it messes with $BE_NICE
#IFS=$'\n\t'
########################################################################
# 2015-02-23 Christopher Hirschmann [email protected]
# 2016-02-01 Christian González [email protected]
########################################################################
#
# This program 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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
#
########################################################################
#
# This script will look for a system user's primary maildir
# $HOME/Maildir and possible vMailMgr maildirs under $HOME/users/
# and search them for folders indicating a certain DSPAM setup:
#
# \
# \___ Inbox
# \
# \___ Junk || Spam || Junk-E-Mail
# \
# \___ als Spam lernen
# \
# \___ als Ham lernen
#
# If it finds this folder structure in any maildir, it will show files
# from the folders 'als Ham lernen' and 'als Spam lernen' to DSPAM (so
# it can learn) and after that it will delete them.
#
# You can make this script more verbose with '-v'.
#
# You can also test this script with '-n' in dry run mode. If combined
# with '-v' it will output what it would have done, but won't do any-
# thing.
#
########################################################################
DRYRUN=0;
VERBOSE=0;
while getopts ":hvn" Option
do
case $Option in
h ) echo -e "Usage:\n-n\tdry run\n-v\tbe verbose\n-h\tthis help message"; exit 0;;
n ) DRYRUN=1; ;;
v ) VERBOSE=1; ;;
* ) echo -e "ERROR: Unimplemented option chosen: -${OPTARG}"; exit 1;;
esac
done
if `grep -q "CentOS release 5" /etc/redhat-release`;
then
# ionice -c3 is not supported on CentOS 5 for users != root (needs Linux => 2.6.25)
# so let's fall back to ionice -c2 -n7 which is better than nothing
BE_NICE="nice -n 19 ionice -c2 -n7";
else
BE_NICE="nice -n 19 ionice -c3";
fi
[ "${DRYRUN}" == "1" ] && echo "Running in dry run mode."
# to be able to process directory and file names regardless of any kind
# of weird characters we need to list these names separated by null
# characters and process them accordingly.
( find ${HOME} -name Maildir -print0 ; if [ -d ${HOME}/users ]; then find ${HOME}/users/ -mindepth 1 -maxdepth 1 -print0 ; fi )| while read -d $'\0' -r DIR ;
do
[ "${VERBOSE}" == "1" ] && echo -e "\nTrying to find Junk directory in ${DIR}.";
# Thunderbird, de-facto standard
# used, if nothing else found.
JUNKDIR=".Junk"
if [ -d "${DIR}/.Junk-E-Mail" ];
then
# Outlook
JUNKDIR=".Junk-E-Mail"
elif [ -d "${DIR}/.Spam" ];
then
# GMail
JUNKDIR=".Spam"
fi
if [ "${VERBOSE}" == "1" ];
then
echo -e "Found junk directory ${DIR}/${JUNKDIR}."
echo -e "Looking for mails in ${DIR}.";
fi
if [ -d "${DIR}/${JUNKDIR}.als Spam lernen" ];
then
for SUBDIR in new cur ;
do
find "${DIR}/${JUNKDIR}.als Spam lernen/${SUBDIR}" -type f -print0 | while read -d $'\0' -r spammail ;
do
[ "${VERBOSE}" == "1" ] && echo -e "\tEating spam \"${spammail}\". Yuk!"
if [ "${DRYRUN}" == "0" ];
then
${BE_NICE} /package/host/localhost/dspam/bin/dspam --class=spam --source=error --stdout < "${spammail}";
rm -f "${spammail}";
fi
done
done
else
[ "${VERBOSE}" == "1" ] && echo -e "\t'als Spam lernen' not found in ${DIR}/${JUNKDIR}."
fi
if [ -d "${DIR}/${JUNKDIR}.als Ham lernen" ];
then
for SUBDIR in new cur ;
do
find "${DIR}/${JUNKDIR}.als Ham lernen/${SUBDIR}" -type f -print0 | while read -d $'\0' -r hammail ;
do
[ "${VERBOSE}" == "1" ] && echo -e "\tEating ham \"${hammail}\". Yum!"
if [ "${DRYRUN}" == "0" ];
then
${BE_NICE} /package/host/localhost/dspam/bin/dspam --class=innocent --source=error --stdout < "${hammail}";
rm -f "${hammail}";
fi
done
done
else
[ "${VERBOSE}" == "1" ] && echo -e "\t'als Ham lernen' not found in ${DIR}/${JUNKDIR}."
fi
done
[ "${VERBOSE}" == "1" ] && echo "Done looking for mails."