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pivpn/scripts/uninstall.sh
2019-03-03 10:18:45 +01:00

143 lines
5.2 KiB
Bash
Executable file

#!/usr/bin/env bash
# PiVPN: Uninstall Script
# Must be root to uninstall
if [[ $EUID -eq 0 ]];then
echo "::: You are root."
else
echo "::: Sudo will be used for the uninstall."
# Check if it is actually installed
# If it isn't, exit because the unnstall cannot complete
if [[ $(dpkg-query -s sudo) ]];then
export SUDO="sudo"
else
echo "::: Please install sudo or run this as root."
exit 1
fi
fi
INSTALL_USER=$(cat /etc/pivpn/INSTALL_USER)
PLAT=$(cat /etc/pivpn/DET_PLATFORM)
NO_UFW=$(cat /etc/pivpn/NO_UFW)
PORT=$(cat /etc/pivpn/INSTALL_PORT)
PROTO=$(cat /etc/pivpn/INSTALL_PROTO)
IPv4dev="$(cat /etc/pivpn/pivpnINTERFACE)"
# Find the rows and columns. Will default to 80x24 if it can not be detected.
screen_size=$(stty size 2>/dev/null || echo 24 80)
rows=$(echo $screen_size | awk '{print $1}')
columns=$(echo $screen_size | awk '{print $2}')
# Divide by two so the dialogs take up half of the screen, which looks nice.
r=$(( rows / 2 ))
c=$(( columns / 2 ))
# Unless the screen is tiny
r=$(( r < 20 ? 20 : r ))
c=$(( c < 70 ? 70 : c ))
spinner()
{
local pid=$1
local delay=0.50
local spinstr='/-\|'
while [ "$(ps a | awk '{print $1}' | grep "$pid")" ]; do
local temp=${spinstr#?}
printf " [%c] " "$spinstr"
local spinstr=$temp${spinstr%"$temp"}
sleep $delay
printf "\b\b\b\b\b\b"
done
printf " \b\b\b\b"
}
function removeAll {
# Purge dependencies
echo ":::"
dependencies=( openvpn easy-rsa git iptables-persistent dnsutils expect unattended-upgrades )
for i in "${dependencies[@]}"; do
if [ "$(dpkg-query -W --showformat='${Status}\n' "$i" 2> /dev/null | grep -c "ok installed")" -eq 1 ]; then
while true; do
read -rp "::: Do you wish to remove $i from your system? [y/n]: " yn
case $yn in
[Yy]* ) printf ":::\tRemoving %s..." "$i"; $SUDO apt-get -y remove --purge "$i" &> /dev/null & spinner $!; printf "done!\n";
if [ "$i" == "openvpn" ]; then UINST_OVPN=1 ; fi
if [ "$i" == "unattended-upgrades" ]; then UINST_UNATTUPG=1 ; fi
break;;
[Nn]* ) printf ":::\tSkipping %s\n" "$i"; break;;
* ) printf "::: You must answer yes or no!\n";;
esac
done
else
printf ":::\tPackage %s not installed... Not removing.\n" "$i"
fi
done
# Take care of any additional package cleaning
printf "::: Auto removing remaining dependencies..."
$SUDO apt-get -y autoremove &> /dev/null & spinner $!; printf "done!\n";
printf "::: Auto cleaning remaining dependencies..."
$SUDO apt-get -y autoclean &> /dev/null & spinner $!; printf "done!\n";
echo ":::"
# Removing pivpn files
echo "::: Removing pivpn system files..."
$SUDO rm -rf /opt/pivpn &> /dev/null
$SUDO rm -rf /etc/.pivpn &> /dev/null
$SUDO rm -rf /home/$INSTALL_USER/ovpns &> /dev/null
$SUDO rm -rf /var/log/*pivpn* &> /dev/null
$SUDO rm -rf /var/log/*openvpn* &> /dev/null
if [[ $UINST_OVPN = 1 ]]; then
$SUDO rm -rf /etc/openvpn &> /dev/null
if [[ $PLAT == "Ubuntu" || $PLAT == "Debian" ]]; then
printf "::: Removing openvpn apt source..."
$SUDO rm -rf /etc/apt/sources.list.d/swupdate.openvpn.net.list &> /dev/null
$SUDO apt-get -qq update & spinner $!; printf "done!\n";
fi
fi
if [[ $UINST_UNATTUPG = 1 ]]; then
$SUDO rm -rf /var/log/unattended-upgrades
$SUDO rm -rf /etc/apt/apt.conf.d/*periodic
fi
$SUDO rm -rf /etc/pivpn &> /dev/null
$SUDO rm /usr/local/bin/pivpn &> /dev/null
$SUDO rm /etc/bash_completion.d/pivpn
# Disable IPv4 forwarding
sed -i '/net.ipv4.ip_forward=1/c\#net.ipv4.ip_forward=1' /etc/sysctl.conf
sysctl -p
if [[ $NO_UFW -eq 0 ]]; then
$SUDO sed -z "s/*nat\n:POSTROUTING ACCEPT \[0:0\]\n-I POSTROUTING -s 10.8.0.0\/24 -o $IPv4dev -j MASQUERADE\nCOMMIT\n\n//" -i /etc/ufw/before.rules
$SUDO ufw delete allow "$PORT"/"$PROTO" >/dev/null
$SUDO ufw route delete allow in on tun0 from 10.8.0.0/24 out on "$IPv4dev" to any >/dev/null
$SUDO ufw reload >/dev/null
fi
echo ":::"
printf "::: Finished removing PiVPN from your system.\n"
printf "::: Reinstall by simpling running\n:::\n:::\tcurl -L https://install.pivpn.io | bash\n:::\n::: at any time!\n:::\n"
}
function askreboot() {
printf "It is \e[1mstrongly\e[0m recommended to reboot after un-installation.\n"
read -p "Would you like to reboot now? [y/n]: " -n 1 -r
echo
if [[ ${REPLY} =~ ^[Yy]$ ]]; then
printf "\nRebooting system...\n"
sleep 3
shutdown -r now
fi
}
######### SCRIPT ###########
echo "::: Preparing to remove packages, be sure that each may be safely removed depending on your operating system."
echo "::: (SAFE TO REMOVE ALL ON RASPBIAN)"
while true; do
read -rp "::: Do you wish to completely remove PiVPN configuration and installed packages from your system? (You will be prompted for each package) [y/n]: " yn
case $yn in
[Yy]* ) removeAll; askreboot; break;;
[Nn]* ) printf "::: Not removing anything, exiting...\n"; break;;
esac
done