#!/bin/bash # # RaspAP uninstall functions # Author: @billz # License: GNU General Public License v3.0 # # You are not obligated to bundle the LICENSE file with your RaspAP projects as long # as you leave these references intact in the header comments of your source files. # Exit on error set -o errexit # Exit on error inside functions set -o errtrace # Turn on traces, disabled by default # set -o xtrace # Set defaults readonly raspap_dir="/etc/raspap" readonly raspap_user="www-data" readonly raspap_sudoers="/etc/sudoers.d/090_raspap" readonly raspap_dnsmasq="/etc/dnsmasq.d/090_raspap.conf" readonly raspap_sysctl="/etc/sysctl.d/90_raspap.conf" readonly raspap_network="/etc/systemd/network/" readonly rulesv4="/etc/iptables/rules.v4" webroot_dir="/var/www/html" # Determines host Linux distrubtion details function _get_linux_distro() { if type lsb_release >/dev/null 2>&1; then # linuxbase.org OS=$(lsb_release -si) RELEASE=$(lsb_release -sr) CODENAME=$(lsb_release -sc) DESC=$(lsb_release -sd) elif [ -f /etc/os-release ]; then # freedesktop.org . /etc/os-release OS=$ID RELEASE=$VERSION_ID CODENAME=$VERSION_CODENAME DESC=$PRETTY_NAME else _install_error "Unsupported Linux distribution" fi } # Sets php package option based on Linux version, abort if unsupported distro function _set_php_package() { case $RELEASE in 18.04|19.10) # Ubuntu Server php_package="php7.4-cgi" phpcgiconf="/etc/php/7.4/cgi/php.ini" ;; 10*) php_package="php7.3-cgi" phpcgiconf="/etc/php/7.3/cgi/php.ini" ;; 9*) php_package="php7.0-cgi" phpcgiconf="/etc/php/7.0/cgi/php.ini" ;; esac } # Outputs a RaspAP Install log line function _install_log() { echo -e "\033[1;32mRaspAP Uninstall: $*\033[m" } # Outputs a RaspAP Install Error log line and exits with status code 1 function _install_error() { echo -e "\033[1;37;41mRaspAP Uninstall Error: $*\033[m" exit 1 } # Checks to make sure uninstallation info is correct function _config_uninstallation() { _install_log "Configure uninstall of RaspAP" _get_linux_distro echo "Detected ${DESC}" echo "RaspAP install directory: ${raspap_dir}" echo -n "Lighttpd install directory: ${webroot_dir}? [Y/n]: " read answer if [ "$answer" != "${answer#[Nn]}" ]; then read -e -p "Enter alternate lighttpd directory: " -i "/var/www/html" webroot_dir fi echo "Uninstall from lighttpd directory: ${webroot_dir}" echo -n "Uninstall RaspAP with these values? [Y/n]: " read answer if [[ "$answer" != "${answer#[Nn]}" ]]; then echo "Installation aborted." exit 0 fi } # Checks for/restore backup files function _check_for_backups() { if [ -d "$raspap_dir/backups" ]; then if [ -f "$raspap_dir/backups/hostapd.conf" ]; then echo -n "Restore the last hostapd configuration file? [y/N]: " read answer if [[ $answer -eq 'y' ]]; then sudo cp "$raspap_dir/backups/hostapd.conf" /etc/hostapd/hostapd.conf fi fi if [ -f "$raspap_dir/backups/dnsmasq.conf" ]; then echo -n "Restore the last dnsmasq configuration file? [y/N]: " read answer if [[ $answer -eq 'y' ]]; then sudo cp "$raspap_dir/backups/dnsmasq.conf" /etc/dnsmasq.conf fi fi if [ -f "$raspap_dir/backups/dhcpcd.conf" ]; then echo -n "Restore the last dhcpcd.conf file? [y/N]: " read answer if [[ $answer -eq 'y' ]]; then sudo cp "$raspap_dir/backups/dhcpcd.conf" /etc/dhcpcd.conf fi fi if [ -f "$raspap_dir/backups/php.ini" ] && [ -f "$phpcgiconf" ]; then echo -n "Restore the last php.ini file? [y/N]: " read answer if [[ $answer -eq 'y' ]]; then sudo cp "$raspap_dir/backups/php.ini" "$phpcgiconf" fi fi fi } # Removes RaspAP directories function _remove_raspap_directories() { _install_log "Removing RaspAP Directories" if [ ! -d "$raspap_dir" ]; then _install_error "RaspAP Configuration directory not found. Exiting." fi if [ ! -d "$webroot_dir" ]; then _install_error "RaspAP Installation directory not found. Exiting." fi sudo rm -rf "$webroot_dir"/* || _install_error "Unable to remove $webroot_dir" sudo rm -rf "$raspap_dir" || _install_error "Unable to remove $raspap_dir" } # Removes raspapd.service function _remove_raspap_service() { _install_log "Removing raspapd.service" sudo rm /lib/systemd/system/raspapd.service || _install_error "Unable to remove raspap.service file" sudo systemctl daemon-reload sudo systemctl disable raspapd.service || _install_error "Failed to disable raspap.service" echo "Done." } # Restores networking config to pre-install defaults function _restore_networking() { _install_log "Restoring networking config to pre-install defaults" echo "Disabling IP forwarding in $raspap_sysctl" sudo rm "$raspap_sysctl" || _install_error "Unable to remove $raspap_sysctl" sudo /etc/init.d/procps restart || _install_error "Unable to execute procps" echo "Checking iptables rules" rules=( "-A POSTROUTING -j MASQUERADE" "-A POSTROUTING -s 192.168.50.0/24 ! -d 192.168.50.0/24 -j MASQUERADE" ) for rule in "${rules[@]}"; do if grep -- "$rule" $rulesv4 > /dev/null; then rule=$(sed -e 's/^\(-A POSTROUTING\)/-t nat -D POSTROUTING/' <<< $rule) echo "Removing rule: ${rule}" sudo iptables $rule || _install_error "Unable to execute iptables" removed=true fi done # Persist rules if removed if [ "$removed" = true ]; then echo "Removing persistent iptables rules" sudo iptables-save | sudo tee $rulesv4 > /dev/null || _install_error "Unable to execute iptables-save" fi echo "Done." # Remove dnsmasq and bridge configs echo "Removing 090_raspap.conf from dnsmasq" sudo rm "$raspap_dnsmasq" || _install_error "Unable to remove $raspap_dnsmasq" echo "Removing raspap bridge configurations" sudo rm "$raspap_network"/raspap* || _install_error "Unable to remove bridge config" } # Removes installed packages function _remove_installed_packages() { _install_log "Removing installed packages" _set_php_package if [ ${OS,,} = "debian" ] || [ ${OS,,} = "ubuntu" ]; then dhcpcd_package="dhcpcd5" else dhcpcd_package="dnsmasq" fi echo -n "Remove the following installed packages? lighttpd hostapd iptables-persistent $php_package $dhcpcd_package vnstat qrencode [y/N]: " read answer if [ "$answer" != 'n' ] && [ "$answer" != 'N' ]; then echo "Removing packages." sudo apt-get remove lighttpd hostapd iptables-persistent $php_package $dhcpcd_package vnstat qrencode || _install_error "Unable to remove installed packages" sudo apt-get autoremove || _install_error "Unable to run apt autoremove" else echo "Leaving packages installed." fi } # Removes www-data from sudoers function _remove_sudoers() { _install_log "Removing sudoers permissions" echo "Removing ${raspap_sudoers}" sudo rm "$raspap_sudoers" || _install_error "Unable to remove $raspap_sudoers" echo "Done." } function _uninstall_complete() { _install_log "Uninstall completed" echo "It is recommended that you reboot your system as a final step." } function _remove_raspap() { _config_uninstallation _check_for_backups _remove_raspap_service _restore_networking _remove_raspap_directories _remove_installed_packages _remove_sudoers _uninstall_complete } _remove_raspap