#!/bin/bash

CDIR="/var/cache/amavis-dkim"
CONFDIR="/etc/amavis/conf.d"
LUPDATED=$(stat -c %Y ${CONFDIR})

[[ -d ${CDIR} ]] || mkdir -p ${CDIR}

nmap -p 3306 10.201.0.4 |grep -q '3306/tcp.*open.*mysql'

if [[ $? == 1 ]]; then
 exit 1
fi

MYSQL="mysql --skip-ssl -h 10.201.0.4 -u maketank -pknatekam2007 -B --database=maketank_froxlor"

#compare files
OLD=${CDIR}/dkim-domains.prev
[[ -e ${OLD} ]] || touch $OLD
NEW=${CDIR}/dkim-domains.new
${MYSQL} -e 'SELECT domain from panel_domains pd where pd.isemaildomain = "1" order by domain ASC;' |sed '1d' >$NEW

# Add new DKIM entries
diff $OLD $NEW |awk -F '> ' '{print $2}' |awk NF | while read line; do
  line_n=$(echo ${line} |tr '.' '_')
  if [[ ! -e ${CONFDIR}/999-${line_n} ]]; then
    cat <<EOT >${CONFDIR}/999-${line_n}
# Automatically generated, do not edit   
dkim_key(
    '${line}',
    'mx',
    '/etc/amavis/dkim/maketank.net.private.key'
);
1;
EOT
  fi
done

# Remove old DKIM entries
diff $OLD $NEW |awk -F '< ' '{print $2}' |awk NF | while read line; do
  line_n=$(echo ${line} |tr '.' '_')
  rm -fv ${CONFDIR}/999-${line_n}
done


UPDATED=$(stat -c %Y ${CONFDIR})

if [[ ${LUPDATED} -lt ${UPDATED} ]]; then
 systemctl reload amavis.service
 cp $NEW $OLD
fi