freedomboneeee/src/freedombone-backup-remote

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#!/bin/bash
# _____ _ _
# | __|___ ___ ___ _| |___ _____| |_ ___ ___ ___
# | __| _| -_| -_| . | . | | . | . | | -_|
# |__| |_| |___|___|___|___|_|_|_|___|___|_|_|___|
#
# Freedom in the Cloud
#
# Backup to remote servers - the web of backups
# License
# =======
#
# Copyright (C) 2015-2018 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
MONGODB_APPS_FILE=$HOME/.mongodbapps
BACKUP_EXTRA_DIRECTORIES=/root/backup-extra-dirs.csv
ENABLE_VERIFICATION="no"
export TEXTDOMAIN=${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=$(grep 'GO_VERSION=' "/usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-go" | 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=$(${PROJECT_NAME}-pass -u root -a mariadb)
# 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"
systemctl reload nginx
}
function restart_site {
# restarts a given website
if [ ! "$SUSPENDED_SITE" ]; then
return
fi
nginx_ensite "$SUSPENDED_SITE"
systemctl reload nginx
SUSPENDED_SITE=
}
function backup_blocklist {
if [ ! -f /root/${PROJECT_NAME}-firewall-domains.cfg ]; then
return
fi
echo $"Backing up ${PROJECT_NAME} blocklist"
temp_backup_dir=/root/tempbackupblocklist
if [ ! -d $temp_backup_dir ]; then
mkdir -p $temp_backup_dir
fi
if [ -f "$NODEJS_INSTALLED_APPS_FILE" ]; then
cp -f /root/${PROJECT_NAME}-firewall-domains.cfg $temp_backup_dir
fi
backup_directory_to_friend $temp_backup_dir blocklist
rm -rf $temp_backup_dir
}
function backup_configfiles {
echo $"Backing up ${PROJECT_NAME} configuration files"
temp_backup_dir=/root/tempbackupconfig
if [ ! -d $temp_backup_dir ]; then
mkdir -p $temp_backup_dir
fi
if [ -f "$NODEJS_INSTALLED_APPS_FILE" ]; then
cp -f "$NODEJS_INSTALLED_APPS_FILE" $temp_backup_dir
fi
if [ -f /root/.nostore ]; then
cp -f /root/.nostore $temp_backup_dir
else
if [ -f $temp_backup_dir/.nostore ]; then
rm $temp_backup_dir/.nostore
fi
fi
cp -f "$CONFIGURATION_FILE" $temp_backup_dir
cp -f "$COMPLETION_FILE" $temp_backup_dir
if [ -f $BACKUP_EXTRA_DIRECTORIES ]; then
cp -f $BACKUP_EXTRA_DIRECTORIES $temp_backup_dir
fi
if [ -f "$MONGODB_APPS_FILE" ]; then
cp -f "$MONGODB_APPS_FILE" $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
if [ -d "/home/$USERNAME/.mutt" ]; then
echo $"Backing up Mutt configurations for $USERNAME"
backup_directory_to_friend "/home/$USERNAME/.mutt" "mutt/${USERNAME}configs"
fi
# procmail settings
if [ -f "/home/$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/$USERNAME"
fi
gpg_agent_enable "$USERNAME"
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_passwordstore {
if [ -d /root/.passwords ]; then
echo $"Backing up password store"
backup_directory_to_friend /root/.passwords passwordstore
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 $temp_backup_dir
fi
keep_database_running
mysqldump --password="$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
}
function backup_postgresql {
if [ ! -d /etc/postgresql ]; then
return
fi
temp_backup_dir=/root/temppostgresql
if [ ! -d $temp_backup_dir ]; then
mkdir $temp_backup_dir
fi
# shellcheck disable=SC2024
sudo -u postgres pg_dumpall --roles-only > "$temp_backup_dir/postgresql.sql"
if [ ! -s $temp_backup_dir/postgresql.sql ]; then
echo $"Unable to backup postgresql settings"
rm -rf $temp_backup_dir
umount "$USB_MOUNT"
rm -rf "$USB_MOUNT"
exit 684365
fi
echo "$DATABASE_PASSWORD" > $temp_backup_dir/db
chmod 400 $temp_backup_dir/db
backup_directory_to_friend $temp_backup_dir postgresql
}
# 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" || exit 34687246462
# shellcheck disable=SC2012
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" "$REMOTE_SERVER"
# shellcheck disable=SC2181
if [ ! "$?" = "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" "$MY_EMAIL_ADDRESS"
fi
# remove the temp file/directory
rm "$temp_key_share_fragments/"*
rm -rf "$temp_key_share_dir"
fi
fi
fi
}
TEST_MODE="no"
if [[ "$1" == "test" ]]; then
TEST_MODE="yes"
fi
gpg_agent_setup root
backup_configfiles
if [[ $TEST_MODE == "no" ]]; then
backup_blocklist
backup_users
backup_letsencrypt
backup_passwordstore
backup_tor
backup_web_server
backup_admin_readme
backup_mariadb
backup_postgresql
backup_certs
backup_mailing_list
backup_apps remote
backup_extra_directories remote
fi
# For each remote server
while read -r remote_server
do
# Get the server and its password
# Format is:
# username@domain <port number> /home/username <ssh password>
REMOTE_SERVER=$(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 $REMOTE_SERVER"
fi
if ! rsync -ratlzv --rsh="/usr/bin/sshpass -p \"$REMOTE_PASSWORD\" ssh -p $REMOTE_SSH_PORT -o StrictHostKeyChecking=no" "$SERVER_DIRECTORY/backup" "$REMOTE_SERVER"; then
echo "$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