You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

426 lines
15 KiB

#!/bin/bash
#
# .---. . .
# | | |
# |--- .--. .-. .-. .-.| .-. .--.--. |.-. .-. .--. .-.
# | | (.-' (.-' ( | ( )| | | | )( )| | (.-'
# ' ' --' --' -' - -' ' ' -' -' -' ' - --'
#
# Freedom in the Cloud
#
# Backup to remote servers - the web of backups
# License
# =======
#
# Copyright (C) 2015-2016 Bob Mottram <bob@freedombone.net>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
PROJECT_NAME='freedombone'
COMPLETION_FILE=$HOME/${PROJECT_NAME}-completed.txt
CONFIGURATION_FILE=$HOME/${PROJECT_NAME}.cfg
BACKUP_EXTRA_DIRECTORIES=/root/backup-extra-dirs.csv
ENABLE_VERIFICATION="no"
export TEXTDOMAIN=${PROJECT_NAME}-backup-remote
export TEXTDOMAINDIR="/usr/share/locale"
PROJECT_INSTALL_DIR=/usr/local/bin
if [ -f /usr/bin/${PROJECT_NAME} ]; then
PROJECT_INSTALL_DIR=/usr/bin
fi
source $PROJECT_INSTALL_DIR/${PROJECT_NAME}-vars
# utilities needed for backup commands
UTILS_FILES=/usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-*
for f in $UTILS_FILES
do
source $f
done
# Temporary location for data to be backed up to other servers
SERVER_DIRECTORY=/root/remotebackup
# get the version of Go being used
GO_VERSION=$(cat /usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-go | grep 'GO_VERSION=' | head -n 1 | awk -F '=' '{print $2}')
ADMIN_USERNAME=$(get_completion_param "Admin user")
ADMIN_NAME=$(getent passwd $ADMIN_USERNAME | cut -d: -f5 | cut -d, -f1)
ADMIN_EMAIL_ADDRESS=${ADMIN_USERNAME}@${HOSTNAME}
if [ ! -f /etc/ssl/private/backup.key ]; then
echo $"Creating backup key"
${PROJECT_NAME}-addcert -h backup --dhkey 2048
fi
if [ ! -f /home/${ADMIN_USERNAME}/backup.list ]; then
exit 1
fi
# MariaDB password
DATABASE_PASSWORD=''
if [ -f /root/dbpass ]; then
DATABASE_PASSWORD=$(cat /root/dbpass)
fi
# local directory where the backup will be made
if [ ! -d $SERVER_DIRECTORY ]; then
mkdir $SERVER_DIRECTORY
fi
if [ ! -d $SERVER_DIRECTORY/backup ]; then
mkdir -p $SERVER_DIRECTORY/backup
fi
# The name of a currently suspended site
# Sites are suspended so that verification should work
SUSPENDED_SITE=
function suspend_site {
# suspends a given website
if [[ $ENABLE_VERIFICATION != "yes" ]]; then
return
fi
SUSPENDED_SITE="$1"
nginx_dissite $SUSPENDED_SITE
service nginx reload
}
function restart_site {
# restarts a given website
if [ ! $SUSPENDED_SITE ]; then
return
fi
nginx_ensite $SUSPENDED_SITE
service nginx reload
SUSPENDED_SITE=
}
function backup_configfiles {
echo $"Backing up ${PROJECT_NAME} configuration files"
temp_backup_dir=/root/tempbackupconfig
if [ ! -d $temp_backup_dir ]; then
mkdir -p $temp_backup_dir
fi
cp -f $CONFIGURATION_FILE $temp_backup_dir
cp -f $COMPLETION_FILE $temp_backup_dir
if [ -f $BACKUP_EXTRA_DIRECTORIES ]; then
cp -f $BACKUP_EXTRA_DIRECTORIES $temp_backup_dir
fi
# nginx password hashes
if [ -f /etc/nginx/.htpasswd ]; then
cp -f /etc/nginx/.htpasswd $temp_backup_dir/htpasswd
fi
backup_directory_to_friend $temp_backup_dir configfiles
}
function backup_users {
for d in /home/*/ ; do
USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
# personal settings
if [ -d /home/$USERNAME/personal ]; then
echo $"Backing up personal settings for $USERNAME"
backup_directory_to_friend /home/$USERNAME/personal personal/$USERNAME
fi
# gpg keys
if [ -d /home/$USERNAME/.gnupg ]; then
echo $"Backing up gpg keys for $USERNAME"
backup_directory_to_friend /home/$USERNAME/.gnupg gnupg/$USERNAME
fi
# ssh keys
if [ -d /home/$USERNAME/.ssh ]; then
echo $"Backing up ssh keys for $USERNAME"
backup_directory_to_friend /home/$USERNAME/.ssh ssh/$USERNAME
fi
# syncthing files
if [ -d /home/$USERNAME/Sync ]; then
echo $"Backing up syncthing files for $USERNAME"
backup_directory_to_friend /home/$USERNAME/Sync syncthing/$USERNAME
# ensure that device IDs will be backed up as part of user config settings
if [ ! -d /home/$USERNAME/.config/syncthing ]; then
mkdir -p /home/$USERNAME/.config/syncthing
chown -R $USERNAME:$USERNAME /home/$USERNAME/.config
fi
if [ -f /home/$USERNAME/.syncthing-server-id ]; then
cp /home/$USERNAME/.syncthing-server-id /home/$USERNAME/.config/syncthing
chown -R $USERNAME:$USERNAME /home/$USERNAME/.config
fi
if [ -f /home/$USERNAME/.syncthingids ]; then
cp /home/$USERNAME/.syncthingids /home/$USERNAME/.config/syncthing
chown -R $USERNAME:$USERNAME /home/$USERNAME/.config
fi
fi
# config files
if [ -d /home/$USERNAME/.config ]; then
echo $"Backing up config files for $USERNAME"
backup_directory_to_friend /home/$USERNAME/.config config/$USERNAME
fi
# monkeysphere files
if [ -d /home/$USERNAME/.monkeysphere ]; then
echo $"Backing up monkeysphere files for $USERNAME"
backup_directory_to_friend /home/$USERNAME/.monkeysphere monkeysphere/$USERNAME
fi
# fin files
if [ -d /home/$USERNAME/.fin ]; then
echo $"Backing up fin files for $USERNAME"
backup_directory_to_friend /home/$USERNAME/.fin fin/$USERNAME
fi
# local files
if [ -d /home/$USERNAME/.local ]; then
echo $"Backing up local files for $USERNAME"
backup_directory_to_friend /home/$USERNAME/.local local/$USERNAME
fi
# mutt settings
if [ -f /home/$USERNAME/.muttrc ]; then
echo $"Backing up Mutt settings for $USERNAME"
if [ ! -d /home/$USERNAME/tempbackup ]; then
mkdir -p /home/$USERNAME/tempbackup
fi
cp /home/$USERNAME/.muttrc /home/$USERNAME/tempbackup
if [ -f /etc/Muttrc ]; then
cp /etc/Muttrc /home/$USERNAME/tempbackup
fi
backup_directory_to_friend /home/$USERNAME/tempbackup mutt/$USERNAME
fi
# procmail settings
if [ -f /home/$USERNAME/.procmailrc ]; then
echo $"Backing up procmail settings for $USERNAME"
if [ ! -d /home/$USERNAME/tempbackup ]; then
mkdir -p /home/$USERNAME/tempbackup
fi
cp /home/$USERNAME/.procmailrc /home/$USERNAME/tempbackup
backup_directory_to_friend /home/$USERNAME/tempbackup procmail/$USERNAME
fi
# spamassassin settings
if [ -d /home/$USERNAME/.spamassassin ]; then
echo $"Backing up spamassassin settings for $USERNAME"
backup_directory_to_friend /home/$USERNAME/.spamassassin spamassassin/$USERNAME
fi
# email
if [ -d /home/$USERNAME/Maildir ]; then
echo $"Stopping mail server"
systemctl stop exim4
echo $"Creating an email archive"
if [ ! -d /root/backupemail/$USERNAME ]; then
mkdir -p /root/backupemail/$USERNAME
fi
tar -czvf /root/backupemail/$USERNAME/maildir.tar.gz /home/$USERNAME/Maildir
echo $"Restarting mail server"
systemctl start exim4
echo $"Backing up emails for $USERNAME"
backup_directory_to_friend /root/backupemail/$USERNAME mail/$USERNAME
fi
fi
done
}
function backup_letsencrypt {
if [ -d /etc/letsencrypt ]; then
echo $"Backing up Lets Encrypt settings"
backup_directory_to_friend /etc/letsencrypt letsencrypt
fi
}
function backup_tor {
if [ -d /etc/letsencrypt ]; then
echo $"Backing up Tor settings"
backup_directory_to_friend /var/lib/tor tor
fi
}
function backup_certs {
if [ -d /etc/ssl ]; then
echo $"Backing up certificates"
backup_directory_to_friend /etc/ssl ssl
fi
}
function backup_mailing_list {
if [ -d /var/spool/mlmmj ]; then
echo $"Backing up the public mailing list"
backup_directory_to_friend /var/spool/mlmmj mailinglist
fi
}
function backup_web_server {
if [ -d /etc/nginx ]; then
echo $"Backing up web settings"
backup_directory_to_friend /etc/nginx/sites-available web
fi
}
function backup_admin_readme {
if [ -f /home/$ADMIN_USERNAME/README ]; then
echo $"Backing up README"
if [ ! -d /home/$ADMIN_USERNAME/tempbackup ]; then
mkdir -p /home/$ADMIN_USERNAME/tempbackup
fi
cp -f /home/$ADMIN_USERNAME/README /home/$ADMIN_USERNAME/tempbackup
backup_directory_to_friend /home/$ADMIN_USERNAME/tempbackup readme
fi
}
function backup_mariadb {
if [ ${#DATABASE_PASSWORD} -gt 1 ]; then
temp_backup_dir=/root/tempmariadb
if [ ! -d $temp_backup_dir ]; then
mkdir $temp_backup_dir
fi
mysqldump --password=$DATABASE_PASSWORD mysql user > $temp_backup_dir/mysql.sql
if [ ! -s $temp_backup_dir/mysql.sql ]; then
echo $"Unable to backup MariaDB settings"
rm -rf $temp_backup_dir
# Send a warning email
echo $"Unable to export database settings" | mail -s "${PROJECT_NAME} backup to friends" $ADMIN_EMAIL_ADDRESS
exit 653
fi
echo "$DATABASE_PASSWORD" > $temp_backup_dir/db
chmod 400 $temp_backup_dir/db
backup_directory_to_friend $temp_backup_dir mariadb
fi
}
# Returns the filename of a key share
function get_key_share {
no_of_shares=$1
USERNAME="$2"
REMOTE_DOMAIN="$3"
# Get a share index based on the supplied domain name
# This ensures that the same share is always given to the same domain
sharenumstr=$(md5sum <<< "$REMOTE_DOMAIN")
share_index=$(echo $((0x${sharenumstr%% *} % ${no_of_shares})) | tr -d -)
# get the filename
share_files=(/home/$USERNAME/.gnupg_fragments/keyshare.asc.*)
share_filename=${share_files[share_index]}
echo "$share_filename"
}
function disperse_key_shares {
USERNAME=$1
REMOTE_DOMAIN=$2
REMOTE_SSH_PORT=$3
REMOTE_PASSWORD=$4
REMOTE_SERVER=$5
if [ -d /home/$USERNAME/.gnupg_fragments ]; then
if [ $REMOTE_DOMAIN ]; then
cd /home/$USERNAME/.gnupg_fragments
no_of_shares=$(ls -afq keyshare.asc.* | wc -l)
if (( no_of_shares > 1 )); then
share_filename=$(get_key_share $no_of_shares "$USERNAME" "$REMOTE_DOMAIN")
# create a temp directory containing the share
temp_key_share_dir=/home/$USERNAME/tempkey
temp_key_share_fragments=$temp_key_share_dir/.gnupg_fragments_${USERNAME}
mkdir -p $temp_key_share_fragments
cp $share_filename $temp_key_share_fragments/
# copy the fragments directory to the remote server
/usr/bin/sshpass -p "$REMOTE_PASSWORD" \
scp -r -P $REMOTE_SSH_PORT $temp_key_share_fragments $REMOTE_SERVER
if [ ! "$?" = "0" ]; then
# Send a warning email
echo "Key share to $REMOTE_SERVER failed" | \
mail -s "${PROJECT_NAME} social key management" $MY_EMAIL_ADDRESS
else
# Send a confirmation email
echo "Key ${share_filename} shared to $REMOTE_SERVER" | \
mail -s "${PROJECT_NAME} social key management" $MY_EMAIL_ADDRESS
fi
# remove the temp file/directory
shred -zu $temp_key_share_fragments/*
rm -rf $temp_key_share_dir
fi
fi
fi
}
TEST_MODE="no"
if [[ "$1" == "test" ]]; then
TEST_MODE="yes"
fi
backup_configfiles
if [[ $TEST_MODE == "no" ]]; then
backup_users
backup_letsencrypt
backup_tor
backup_web_server
backup_admin_readme
backup_mariadb
backup_certs
backup_mailing_list
backup_apps remote
backup_extra_directories remote
fi
# For each remote server
while read remote_server
do
# Get the server and its password
# Format is:
# username@domain <port number> /home/username <ssh password>
REMOTE_SERVER=$(echo "${remote_server}" | awk -F ' ' '{print $1}')
if [ $REMOTE_SERVER ]; then
REMOTE_DOMAIN=$(echo "${remote_server}" | awk -F ' ' '{print $1}' | awk -F '@' '{print $2}')
REMOTE_SSH_PORT=$(echo "${remote_server}" | awk -F ' ' '{print $2}')
REMOTE_DIRECTORY=$(echo "${remote_server}" | awk -F ' ' '{print $3}')
REMOTE_PASSWORD=$(echo "${remote_server}" | awk -F ' ' '{print $4}')
NOW=$(date +"%Y-%m-%d %H:%M:%S")
REMOTE_SERVER=$REMOTE_SERVER:$REMOTE_DIRECTORY
echo "$NOW Starting backup to $REMOTE_SERVER" >> /var/log/remotebackups.log
# Social key management
for d in /home/*/ ; do
USERNAME=$(echo "$d" | awk -F '/' '{print $3}')
if [[ $(is_valid_user "$USERNAME") == "1" ]]; then
disperse_key_shares $USERNAME $REMOTE_DOMAIN $REMOTE_SSH_PORT "$REMOTE_PASSWORD" $REMOTE_SERVER
fi
done
if [[ $TEST_MODE == "yes" ]]; then
echo "rsync -ratlzv --rsh=\"/usr/bin/sshpass -p '$REMOTE_PASSWORD' ssh -p $REMOTE_SSH_PORT -o StrictHostKeyChecking=no\" $SERVER_DIRECTORY/backup $REMOTE_SERVER"
fi
rsync -ratlzv --rsh="/usr/bin/sshpass -p \"$REMOTE_PASSWORD\" ssh -p $REMOTE_SSH_PORT -o StrictHostKeyChecking=no" $SERVER_DIRECTORY/backup $REMOTE_SERVER
if [ ! "$?" = "0" ]; then
echo "$NOW Backup to $REMOTE_SERVER failed" >> /var/log/remotebackups.log
# Send a warning email
echo "Backup to $REMOTE_SERVER failed" | mail -s "${PROJECT_NAME} backup to friends" $ADMIN_EMAIL_ADDRESS
else
echo "$NOW Backed up to $REMOTE_SERVER" >> /var/log/remotebackups.log
fi
fi
done < /home/${ADMIN_USERNAME}/backup.list
exit 0