mirror of
https://github.com/pivpn/pivpn.git
synced 2024-12-18 19:00:15 +00:00
129 lines
3.5 KiB
Bash
Executable file
129 lines
3.5 KiB
Bash
Executable file
#!/bin/bash
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# PiVPN: Backup Script
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### Constants
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# Find the rows and columns. Will default to 80x24 if it can not be detected.
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screen_size="$(stty size 2> /dev/null || echo 24 80)"
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rows="$(echo "${screen_size}" | awk '{print $1}')"
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columns="$(echo "${screen_size}" | awk '{print $2}')"
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# Divide by two so the dialogs take up half of the screen, which looks nice.
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r=$((rows / 2))
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c=$((columns / 2))
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# Unless the screen is tiny
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r=$((r < 20 ? 20 : r))
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c=$((c < 70 ? 70 : c))
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backupdir=pivpnbackup
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date="$(date +%Y%m%d-%H%M%S)"
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setupVarsFile="setupVars.conf"
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setupConfigDir="/etc/pivpn"
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CHECK_PKG_INSTALLED='dpkg-query -s'
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### Functions
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err() {
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echo "[$(date +'%Y-%m-%dT%H:%M:%S%z')]: $*" >&2
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}
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checkbackupdir() {
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# Disabling shellcheck error $install_home sourced from $setupVars
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# shellcheck disable=SC2154
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mkdir -p "${install_home}/${backupdir}"
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}
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backup_openvpn() {
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openvpndir=/etc/openvpn
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ovpnsdir="${install_home}/ovpns"
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backupzip="${date}-pivpnovpnbackup.tgz"
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checkbackupdir
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# shellcheck disable=SC2210
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tar czpf "${install_home}/${backupdir}/${backupzip}" "${openvpndir}" \
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"${ovpnsdir}" > /dev/null 2>&1
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echo -e "Backup created in ${install_home}/${backupdir}/${backupzip} "
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echo -e "To restore the backup, follow instructions at:"
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echo -ne "https://docs.pivpn.io/openvpn/"
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echo -e "#migrating-pivpn-openvpn"
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}
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backup_wireguard() {
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wireguarddir=/etc/wireguard
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configsdir="${install_home}/configs"
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backupzip="${date}-pivpnwgbackup.tgz"
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checkbackupdir
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tar czpf "${install_home}/${backupdir}/${backupzip}" "${wireguarddir}" \
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"${configsdir}" > /dev/null 2>&1
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echo -e "Backup created in ${install_home}/${backupdir}/${backupzip} "
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echo -e "To restore the backup, follow instructions at:"
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echo -ne "https://docs.pivpn.io/openvpn/"
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echo -e "wireguard/#migrating-pivpn-wireguard"
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}
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### Script
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if [[ -r "${setupConfigDir}/wireguard/${setupVarsFile}" ]] \
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&& [[ -r "${setupConfigDir}/openvpn/${setupVarsFile}" ]]; then
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# Two protocols have been installed, check if the script has passed
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# an argument, otherwise ask the user which one he wants to remove
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if [[ "$#" -ge 1 ]]; then
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VPN="${1}"
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echo "::: Backing up VPN: ${VPN}"
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else
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chooseVPNCmd=(whiptail
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--backtitle "Setup PiVPN"
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--title "Backup"
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--separate-output
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--radiolist "Both OpenVPN and WireGuard are installed, choose a VPN to \
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backup (press space to select):"
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"${r}" "${c}" 2)
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VPNChooseOptions=(WireGuard "" on
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OpenVPN "" off)
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if VPN="$("${chooseVPNCmd[@]}" "${VPNChooseOptions[@]}" 2>&1 \
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> /dev/tty)"; then
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echo "::: Backing up VPN: ${VPN}"
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VPN="${VPN,,}"
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else
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err "::: Cancel selected, exiting...."
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exit 1
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fi
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fi
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setupVars="${setupConfigDir}/${VPN}/${setupVarsFile}"
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else
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if [[ -r "${setupConfigDir}/wireguard/${setupVarsFile}" ]]; then
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setupVars="${setupConfigDir}/wireguard/${setupVarsFile}"
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elif [[ -r "${setupConfigDir}/openvpn/${setupVarsFile}" ]]; then
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setupVars="${setupConfigDir}/openvpn/${setupVarsFile}"
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fi
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fi
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if [[ ! -f "${setupVars}" ]]; then
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err "::: Missing setup vars file!"
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exit 1
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fi
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# shellcheck disable=SC1090
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source "${setupVars}"
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if [[ "${PLAT}" == 'Alpine' ]]; then
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CHECK_PKG_INSTALLED='apk --no-cache info -e'
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fi
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if [[ "${EUID}" -ne 0 ]]; then
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if ${CHECK_PKG_INSTALLED} sudo &> /dev/null; then
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export SUDO="sudo"
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else
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err "::: Please install sudo or run this as root."
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exit 1
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fi
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fi
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if [[ "${VPN}" == "wireguard" ]]; then
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backup_wireguard
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else
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backup_openvpn
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fi
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