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# arg 1: the new package version
post_install() {
# Make sure the group and user "dovecot"+"dovenull exists on this system and have the correct values
# dovecot
if grep -q "^dovecot:" /etc/group &> /dev/null ; then
groupmod -g 76 -n dovecot dovecot &> /dev/null
else
groupadd -g 76 dovecot &> /dev/null
fi
if grep -q "^dovecot:" /etc/passwd 2> /dev/null ; then
usermod -s /sbin/nologin -c "Dovecot user" -d /var/run/dovecot/login -u 76 -g dovecot dovecot &> /dev/null
else
useradd -s /sbin/nologin -c "Dovecot user" -d /var/run/dovecot/login -u 76 -g dovecot -m -r dovecot &> /dev/null
fi
# dovenull
if grep -q "^dovenull:" /etc/group &> /dev/null ; then
groupmod -g 74 -n dovenull dovenull &> /dev/null
else
groupadd -g 74 dovenull &> /dev/null
fi
if grep -q "^dovenull:" /etc/passwd 2> /dev/null ; then
usermod -s /sbin/nologin -c "Dovecot user for completely untrustworthy processes" -d /var/run/dovecot/login -u 74 -g dovenull dovenull &> /dev/null
else
useradd -s /sbin/nologin -c "Dovecot user for completely untrustworthy processes" -d /var/run/dovecot/login -u 74 -g dovenull -m -r dovenull &> /dev/null
fi
# harden some permissions
chgrp dovenull /var/run/dovecot/login
}
# arg 1: the new package version
# arg 2: the old package version
post_upgrade() {
post_install $1
if [ "`vercmp $2 2.0.0`" -lt 0 ]; then
# important upgrade notice
echo "> IMPORTANT DOVECOT 2.0 UPGRADE NOTICE"
echo "> ------------------------------------"
echo "> see http://wiki2.dovecot.org/Upgrading/2.0"
echo "> make sure, you convert the dovecot.conf file"
fi
}
# arg 1: the old package version
pre_remove() {
userdel dovecot &> /dev/null
userdel dovenull &> /dev/null
groupdel dovecot &> /dev/null || /bin/true
groupdel dovenull &> /dev/null || /bin/true
rm -rf /var/run/dovecot/ &> /dev/null || /bin/true
}
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