263 lines
9.7 KiB
Bash
Executable File
263 lines
9.7 KiB
Bash
Executable File
#!/bin/bash
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# _____ _ _
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# | __|___ ___ ___ _| |___ _____| |_ ___ ___ ___
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# | __| _| -_| -_| . | . | | . | . | | -_|
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# |__| |_| |___|___|___|___|_|_|_|___|___|_|_|___|
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#
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# Freedom in the Cloud
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#
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# Creates an inventory of remote backup locations
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#
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# License
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# =======
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#
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# Copyright (C) 2015-2018 Bob Mottram <bob@freedombone.net>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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NO_OF_ARGS=$#
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PROJECT_NAME='freedombone'
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export TEXTDOMAIN=${PROJECT_NAME}-remote
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export TEXTDOMAINDIR="/usr/share/locale"
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CONFIG_FILE="$HOME/${PROJECT_NAME}.cfg"
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# User to create the list for
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MY_USERNAME=$USER
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# Filename of the remote backups list
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FRIENDS_SERVERS_LIST=
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# Minimum password length in characters
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MINIMUM_PASSWORD_LENGTH=$(grep 'MINIMUM_PASSWORD_LENGTH=' "/usr/share/${PROJECT_NAME}/utils/${PROJECT_NAME}-utils-passwords" | head -n 1 | awk -F '=' '{print $2}')
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# How many remote locations were specified
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entering_remote_backups_ctr=0
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# Title shown
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TITLE='Remote Backup'
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# Whether to include the capability of adding reciprocal user accounts
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# such that whoever is running a remote server can also use your server to
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# store backups
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RECIPROCAL="no"
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function show_help {
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echo ''
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echo $"${PROJECT_NAME}-remote -u [username] -l [backup list filename] -m [min password length]"
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echo ''
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echo $'Creates an inventory of remote backup locations'
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echo ''
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echo ''
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echo $' -h --help Show help'
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echo $' -u --username User to create the backups.list file for'
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echo $' -l --list Remote backup list (usually /home/$USER/backup.list)'
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echo $' -m --min Minimum password length (characters)'
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echo $' -r --reciprocal Whether to add reciprocal user accounts'
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echo $' -t --title Title shown'
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echo ''
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exit 0
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}
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# Get the commandline options
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while [ $# -gt 1 ]
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do
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key="$1"
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case $key in
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-h|--help)
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show_help
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;;
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# backup list filename
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# typically /home/$USER/backup.list
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-l|--list)
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shift
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FRIENDS_SERVERS_LIST="$1"
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;;
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# username within /home
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-u|--user)
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shift
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MY_USERNAME="$1"
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;;
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# Minimum password length
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-m|--min)
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shift
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MINIMUM_PASSWORD_LENGTH="$1"
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;;
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# Title shown
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-t|--title)
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shift
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TITLE="$1"
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;;
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# reciprocal user accounts
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-r|--reciprocal)
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shift
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RECIPROCAL="yes"
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;;
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*)
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# unknown option
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;;
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esac
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shift
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done
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function interactive_config_remote_backups {
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if [ ! "$MY_USERNAME" ]; then
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echo $'Please specify a username with the -u option'
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exit 7356
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fi
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if [ ! -d "/home/$MY_USERNAME" ]; then
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echo $"The user /home/$MY_USERNAME does not exist on the system"
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exit 3689
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fi
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if [ ! "$FRIENDS_SERVERS_LIST" ]; then
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FRIENDS_SERVERS_LIST=/home/$MY_USERNAME/backup.list
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fi
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# clear any existing list
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if [ -f "$FRIENDS_SERVERS_LIST" ]; then
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rm -f "$FRIENDS_SERVERS_LIST"
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touch "$FRIENDS_SERVERS_LIST"
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fi
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# number of entries made
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entering_remote_backups_ctr=1
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entering_remote_backups_done="no"
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remote_ssh_username=""
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remote_ssh_domain=""
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remote_ssh_port=""
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remote_ssh_password=""
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remote_ssh_reciprocal_username=""
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remote_ssh_reciprocal_password=""
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while [[ $entering_remote_backups_done == "no" ]]
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do
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data=$(mktemp 2>/dev/null)
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if [[ $RECIPROCAL == "yes" ]]; then
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dialog --backtitle "Freedombone Configuration" \
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--title "$TITLE ${entering_remote_backups_ctr}" \
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--form "\\nPlease specify the SSH login details for the remote server\\n\\nThe reciprocal entries are optional, and can be used if you wish to set up a user account on this system for whoever runs the remote server to also use for backups" 20 50 8 \
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"Username:" 1 1 "$remote_ssh_username" 1 23 16 15 \
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"Domain:" 2 1 "$remote_ssh_domain" 2 23 16 15 \
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"SSH port:" 3 1 "2222" 3 23 5 4 \
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"Password:" 4 1 "$remote_ssh_password" 4 23 20 100 \
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"Reciprocal Username:" 5 1 "$remote_ssh_reciprocal_username" 5 23 20 100 \
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"Reciprocal Password:" 6 1 "$remote_ssh_reciprocal_password" 6 23 20 100 \
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2> "$data"
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else
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dialog --backtitle "Freedombone Configuration" \
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--title "$TITLE ${entering_remote_backups_ctr}" \
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--form "\\nPlease specify the SSH login details for the remote server" 15 50 4 \
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"Username:" 1 1 "$remote_ssh_username" 1 23 16 15 \
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"Domain:" 2 1 "$remote_ssh_domain" 2 23 16 15 \
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"SSH port:" 3 1 "2222" 3 23 5 4 \
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"Password:" 4 1 "$remote_ssh_password" 4 23 20 100 \
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2> "$data"
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fi
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sel=$?
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case $sel in
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1) entering_remote_backups_done="yes";;
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255) entering_remote_backups_done="yes";;
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esac
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remote_ssh_username=$(sed -n 1p < "$data")
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remote_ssh_domain=$(sed -n 2p < "$data")
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remote_ssh_port=$(sed -n 3p < "$data")
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remote_ssh_password=$(sed -n 4p < "$data")
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remote_ssh_reciprocal_username=$(sed -n 5p < "$data")
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remote_ssh_reciprocal_password=$(sed -n 6p < "$data")
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rm -f "$data"
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if [[ $remote_ssh_username != "" && \
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$remote_ssh_domain != "" && \
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$remote_ssh_port != "" && \
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$remote_ssh_password != "" ]]; then
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if [ ${#remote_ssh_password} -lt "$MINIMUM_PASSWORD_LENGTH" ]; then
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dialog --title "Password quality check" --msgbox "The password given was too short. It must be at least $MINIMUM_PASSWORD_LENGTH characters" 6 40
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else
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if [[ $RECIPROCAL == "yes" ]]; then
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if [[ $remote_ssh_reciprocal_username != "" && \
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$remote_ssh_reciprocal_password != "" ]]; then
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if [ ${#remote_ssh_reciprocal_password} -lt "$MINIMUM_PASSWORD_LENGTH" ]; then
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dialog --title "Password quality check" --msgbox "The reciprocal password given was too short. It must be at least $MINIMUM_PASSWORD_LENGTH characters" 6 40
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else
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echo "${remote_ssh_reciprocal_username}:${remote_ssh_reciprocal_password}::::/home/${remote_ssh_reciprocal_username}:bash" | newusers
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echo "$remote_ssh_username@$remote_ssh_domain $remote_ssh_port /home/$remote_ssh_username $remote_ssh_password" >> "$FRIENDS_SERVERS_LIST"
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remote_ssh_username=""
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remote_ssh_domain=""
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remote_ssh_port=""
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remote_ssh_password=""
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remote_ssh_reciprocal_username=""
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remote_ssh_reciprocal_password=""
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entering_remote_backups_ctr=$((entering_remote_backups_ctr + 1))
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fi
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else
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echo "$remote_ssh_username@$remote_ssh_domain $remote_ssh_port /home/$remote_ssh_username $remote_ssh_password" >> "$FRIENDS_SERVERS_LIST"
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remote_ssh_username=""
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remote_ssh_domain=""
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remote_ssh_port=""
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remote_ssh_password=""
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remote_ssh_reciprocal_username=""
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remote_ssh_reciprocal_password=""
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entering_remote_backups_ctr=$((entering_remote_backups_ctr + 1))
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fi
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else
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echo "$remote_ssh_username@$remote_ssh_domain $remote_ssh_port /home/$remote_ssh_username $remote_ssh_password" >> "$FRIENDS_SERVERS_LIST"
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remote_ssh_username=""
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remote_ssh_domain=""
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remote_ssh_port=""
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remote_ssh_password=""
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entering_remote_backups_ctr=$((entering_remote_backups_ctr + 1))
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fi
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fi
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else
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entering_remote_backups_done="yes"
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fi
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done
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if [ -f "$FRIENDS_SERVERS_LIST" ]; then
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chown "$MY_USERNAME":"$MY_USERNAME" "$FRIENDS_SERVERS_LIST"
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fi
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}
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function show_result {
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clear
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if (( "$entering_remote_backups_ctr" < 2 )); then
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echo $'No remote backup locations were specified'
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exit 0
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fi
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if [ ! -f "$FRIENDS_SERVERS_LIST" ]; then
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echo $"No remote backups list found: $FRIENDS_SERVERS_LIST"
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exit 7358
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fi
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echo ''
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echo $"Remote backups list: $FRIENDS_SERVERS_LIST"
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echo ''
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echo $'Contents:'
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echo ''
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cat "$FRIENDS_SERVERS_LIST"
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echo ''
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}
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if [ ! "$FRIENDS_SERVERS_LIST" ]; then
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FRIENDS_SERVERS_LIST=/home/$MY_USERNAME/backup.list
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fi
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interactive_config_remote_backups
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show_result
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exit 0
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