#!/bin/bash

mountpoint=/backup

alreadymounted=1
badmodload=2
notmounted=3
umountfailure=4
unloadfailure=5

owncloudpath=/var/www/owncloud
datapath=$owncloudpath/data
configpath=$owncloudpath/config
dbname=owncloud

PATH=/usr/sbin:/usr/bin:/sbin:/bin

test -d $mountpoint || mkdir $mountpoint

if grep -q $mountpoint /proc/mounts; then
    echo "$mountpoint déjà monté, arrêt"
    exit $alreadymounted
fi

if ! test -d /sys/module/vboxsf; then
    if ! modprobe vboxsf; then
        echo "module vboxsf non chargé correctement, abandon"
        exit $badmodload
    fi
fi

if ! mount -t vboxsf -o uid=www-data,gid=www-data backup $mountpoint; then
    echo "impossible de monter $mountpoint"
    exit $notmounted
fi

rsync -Avax $configpath $mountpoint/ > /var/log/${0##*/} 2>&1
rsync -Avax --exclude="/etc/ssh/ssh_host_*" /etc $mountpoint/ >> /var/log/${0##*/} 2>&1
rsync -Avax --exclude=lost+found --exclude="data/owncloud.log*" $datapath $mountpoint/ >> /var/log/${0##*/} 2>&1
mysqldump -u owncloud_usr --password=$(awk -F"'" '/dbpassword/{print $4}' $configpath/config.php) $dbname > $mountpoint/${dbname}.db
mysqldump -u sms --password=$(< /home/sms/secret.sms) sms > $mountpoint/sms.db
mysqldump -u prosody --password=$(< /home/sms/secret.prosody) prosody > $mountpoint/prosody.db
cp -f /home/sms/bot /root/inject $mountpoint

touch $mountpoint/step1

if ! umount $mountpoint; then
    echo "impossible de démonter $mountpoint:"
    lsof $mountpoint
    exit $umountfailure
fi

if ! modprobe -r vboxsf; then
    echo "échec du déchargement du module vboxsf"
    exit $unloadfailure
fi

exit 0