#!/bin/bash
#
# vmail-webmail
# https://git.stack-source.com/msb/vmail-webmail
# Copyright (c) 2022 Matthew Saunders Brown <matthewsaundersbrown@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
#
# must be root
if [ "$USER" != "root" ]; then
  echo "You must be root to run this installer."
  exit
fi

# Check for vmail-stack & vhost-stack installs & required configs
if [ -f "/usr/local/bin/vhost.sh" ] && [ -d "/srv/www/html" ] && [ -f "/usr/local/bin/vmail.sh" ] && [ -f "/var/vmail/.my.cnf" ]; then
  # check for existing roundcube webmail install
  if [ -d "/srv/www/html/roundcube" ]; then
    echo "Roundcube webmail app is already installed."
    exit
  fi
else
  echo "Missing required installs/configurations."
  echo "You must install vhost-stack & vmail-stack first."
  exit
fi

# get current working dir, so we can come back here later
installer_dir=$(dirname $(readlink -f $0))

cd /usr/local/src/
wget https://github.com/roundcube/roundcubemail/releases/download/1.6.0/roundcubemail-1.6.0-complete.tar.gz
tar zxf roundcubemail-1.6.0-complete.tar.gz
mv roundcubemail-1.6.0 /srv/www/html/roundcube

cd /usr/local/src/
wget https://github.com/johndoh/roundcube-sauserprefs/archive/refs/tags/1.20.tar.gz -O roundcube-sauserprefs-1.20.tar.gz
tar zxf roundcube-sauserprefs-1.20.tar.gz
mv roundcube-sauserprefs-1.20 /srv/www/html/roundcube/plugins/sauserprefs

cd $installer_dir

cp config/config.inc.php /srv/www/html/roundcube/config/config.inc.php
# get vmail db settings and set db connection info
dbhost=`grep -m 1 host /var/vmail/.my.cnf |cut -d = -f 2|cut -d ' ' -f 2`
dbdatabase=`grep -m 1 database /var/vmail/.my.cnf |cut -d = -f 2|cut -d ' ' -f 2`
dbuser=`grep -m 1 user /var/vmail/.my.cnf |cut -d = -f 2|cut -d ' ' -f 2`
dbpass=`grep -m 1 password /var/vmail/.my.cnf |cut -d = -f 2|cut -d ' ' -f 2`
sed -i "s|.*db_dsnw.*|\$config['db_dsnw'] = 'mysql://$dbuser:$dbpass@$dbhost/$dbdatabase';|g" /srv/www/html/roundcube/config/config.inc.php

apt-get update

# make sure pwgen is installed
apt-get -qq -y install pwgen

# create random key
des_key=`pwgen -1 24`
sed -i "s|.*des_key.*|\$config['des_key'] = '$des_key';|g" /srv/www/html/roundcube/config/config.inc.php

# install plugin configs
cp -a plugins/* /srv/www/html/roundcube/plugins/
sed -i "s|.*sauserprefs_db_dsnw.*|\$config['sauserprefs_db_dsnw'] = 'mysql://$dbuser:$dbpass@$dbhost/$dbdatabase';|g" /srv/www/html/roundcube/plugins/sauserprefs/config.inc.php

# create tmp files storage dir
install --owner=www-data --group=www-data --mode=750 --directory /var/tmp/roundcube

# prefix roundcubemail mysql tables with rc_
cp /srv/www/html/roundcube/installer/SQL/mysql.initial.sql $installer_dir/rc.sql
tables=(`grep TABLE rc.sql |cut -d \\\` -f 2`)
for table in "${!tables[@]}"
do
  table=${tables[$table]}
  sed -i "s|\`$table\`|\`rc_$table\`|g" rc.sql
done
# load roundcube database tables
mysql vmail < rc.sql

# set permissions
rm -r /srv/www/html/roundcube/installer/
chown -R vhost:vhost /srv/www/html/roundcube
find /srv/www/html/roundcube -type d -exec chmod 755 {} +
find /srv/www/html/roundcube -type f -exec chmod 644 {} +
chmod 755 /srv/www/html/roundcube/bin/*.sh

# install & enable rc systemd cron
cp sbin/rc-cron.sh /usr/local/sbin/
chmod 755 /usr/local/sbin/rc-cron.sh
cp systemd/rc-cron.* /usr/lib/systemd/system/
chmod 644 /usr/lib/systemd/system/rc-cron.*
systemctl enable rc-cron.timer
systemctl start rc-cron.timer

echo "Roundcube webmail installed."
echo "You can optionally set the vars 'product_name' & 'support_url' in /srv/www/html/roundcube/config/config.inc.php"