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217 lines
7.6 KiB
217 lines
7.6 KiB
#!/usr/bin/env bash
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# Pi-hole: A black hole for Internet advertisements
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# (c) 2017 Pi-hole, LLC (https://pi-hole.net)
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# Network-wide ad blocking via your own hardware.
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#
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# Completely uninstalls Pi-hole
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#
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# This file is copyright under the latest version of the EUPL.
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# Please see LICENSE file for your rights under this license.
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source "/opt/pihole/COL_TABLE"
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while true; do
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read -rp " ${QST} Are you sure you would like to remove ${COL_WHITE}Pi-hole${COL_NC}? [y/N] " yn
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case ${yn} in
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[Yy]* ) break;;
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[Nn]* ) echo -e "${OVER} ${COL_LIGHT_GREEN}Uninstall has been cancelled${COL_NC}"; exit 0;;
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* ) echo -e "${OVER} ${COL_LIGHT_GREEN}Uninstall has been cancelled${COL_NC}"; exit 0;;
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esac
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done
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# Must be root to uninstall
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str="Root user check"
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if [[ ${EUID} -eq 0 ]]; then
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echo -e " ${TICK} ${str}"
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else
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# Check if sudo is actually installed
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# If it isn't, exit because the uninstall can not complete
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if [ -x "$(command -v sudo)" ]; then
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export SUDO="sudo"
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else
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echo -e " ${CROSS} ${str}
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Script called with non-root privileges
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The Pi-hole requires elevated privleges to uninstall"
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exit 1
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fi
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fi
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readonly PI_HOLE_FILES_DIR="/etc/.pihole"
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PH_TEST="true"
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source "${PI_HOLE_FILES_DIR}/automated install/basic-install.sh"
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# setupVars set in basic-install.sh
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source "${setupVars}"
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# distro_check() sourced from basic-install.sh
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distro_check
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# Install packages used by the Pi-hole
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DEPS=("${INSTALLER_DEPS[@]}" "${PIHOLE_DEPS[@]}")
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if [[ "${INSTALL_WEB_SERVER}" == true ]]; then
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# Install the Web dependencies
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DEPS+=("${PIHOLE_WEB_DEPS[@]}")
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fi
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# Compatability
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if [ -x "$(command -v apt-get)" ]; then
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# Debian Family
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PKG_REMOVE="${PKG_MANAGER} -y remove --purge"
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package_check() {
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dpkg-query -W -f='${Status}' "$1" 2>/dev/null | grep -c "ok installed"
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}
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elif [ -x "$(command -v rpm)" ]; then
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# Fedora Family
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PKG_REMOVE="${PKG_MANAGER} remove -y"
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package_check() {
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rpm -qa | grep "^$1-" > /dev/null
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}
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else
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echo -e " ${CROSS} OS distribution not supported"
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exit 1
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fi
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removeAndPurge() {
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# Purge dependencies
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echo ""
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for i in "${DEPS[@]}"; do
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if package_check "${i}" > /dev/null; then
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while true; do
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read -rp " ${QST} Do you wish to remove ${COL_WHITE}${i}${COL_NC} from your system? [Y/N] " yn
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case ${yn} in
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[Yy]* )
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echo -ne " ${INFO} Removing ${i}...";
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${SUDO} "${PKG_REMOVE} ${i}" &> /dev/null;
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echo -e "${OVER} ${INFO} Removed ${i}";
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break;;
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[Nn]* ) echo -e " ${INFO} Skipped ${i}"; break;;
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esac
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done
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else
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echo -e " ${INFO} Package ${i} not installed"
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fi
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done
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# Remove dnsmasq config files
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${SUDO} rm -f /etc/dnsmasq.conf /etc/dnsmasq.conf.orig /etc/dnsmasq.d/*-pihole*.conf &> /dev/null
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echo -e " ${TICK} Removing dnsmasq config files"
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# Call removeNoPurge to remove Pi-hole specific files
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removeNoPurge
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}
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removeNoPurge() {
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# Only web directories/files that are created by Pi-hole should be removed
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echo -ne " ${INFO} Removing Web Interface..."
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${SUDO} rm -rf /var/www/html/admin &> /dev/null
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${SUDO} rm -rf /var/www/html/pihole &> /dev/null
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${SUDO} rm -f /var/www/html/index.lighttpd.orig &> /dev/null
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# If the web directory is empty after removing these files, then the parent html directory can be removed.
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if [ -d "/var/www/html" ]; then
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if [[ ! "$(ls -A /var/www/html)" ]]; then
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${SUDO} rm -rf /var/www/html &> /dev/null
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fi
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fi
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echo -e "${OVER} ${TICK} Removed Web Interface"
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# Attempt to preserve backwards compatibility with older versions
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# to guarantee no additional changes were made to /etc/crontab after
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# the installation of pihole, /etc/crontab.pihole should be permanently
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# preserved.
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if [[ -f /etc/crontab.orig ]]; then
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${SUDO} mv /etc/crontab /etc/crontab.pihole
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${SUDO} mv /etc/crontab.orig /etc/crontab
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${SUDO} service cron restart
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echo -e " ${TICK} Restored the default system cron"
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fi
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# Attempt to preserve backwards compatibility with older versions
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if [[ -f /etc/cron.d/pihole ]];then
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${SUDO} rm -f /etc/cron.d/pihole &> /dev/null
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echo -e " ${TICK} Removed /etc/cron.d/pihole"
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fi
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if package_check lighttpd > /dev/null; then
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${SUDO} rm -rf /etc/lighttpd/ &> /dev/null
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echo -e " ${TICK} Removed lighttpd"
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else
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if [ -f /etc/lighttpd/lighttpd.conf.orig ]; then
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${SUDO} mv /etc/lighttpd/lighttpd.conf.orig /etc/lighttpd/lighttpd.conf
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fi
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fi
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${SUDO} rm -f /etc/dnsmasq.d/adList.conf &> /dev/null
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${SUDO} rm -f /etc/dnsmasq.d/01-pihole.conf &> /dev/null
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${SUDO} rm -rf /var/log/*pihole* &> /dev/null
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${SUDO} rm -rf /etc/pihole/ &> /dev/null
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${SUDO} rm -rf /etc/.pihole/ &> /dev/null
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${SUDO} rm -rf /opt/pihole/ &> /dev/null
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${SUDO} rm -f /usr/local/bin/pihole &> /dev/null
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${SUDO} rm -f /etc/bash_completion.d/pihole &> /dev/null
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${SUDO} rm -f /etc/sudoers.d/pihole &> /dev/null
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echo -e " ${TICK} Removed config files"
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# Restore Resolved
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if [[ -e /etc/systemd/resolved.conf.orig ]]; then
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${SUDO} cp /etc/systemd/resolved.conf.orig /etc/systemd/resolved.conf
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systemctl reload-or-restart systemd-resolved
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fi
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# Remove FTL
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if command -v pihole-FTL &> /dev/null; then
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echo -ne " ${INFO} Removing pihole-FTL..."
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if [[ -x "$(command -v systemctl)" ]]; then
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systemctl stop pihole-FTL
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else
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service pihole-FTL stop
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fi
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${SUDO} rm -f /etc/init.d/pihole-FTL
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${SUDO} rm -f /usr/bin/pihole-FTL
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echo -e "${OVER} ${TICK} Removed pihole-FTL"
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fi
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# If the pihole manpage exists, then delete and rebuild man-db
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if [[ -f /usr/local/share/man/man8/pihole.8 ]]; then
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${SUDO} rm -f /usr/local/share/man/man8/pihole.8 /usr/local/share/man/man8/pihole-FTL.8 /usr/local/share/man/man5/pihole-FTL.conf.5
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${SUDO} mandb -q &>/dev/null
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echo -e " ${TICK} Removed pihole man page"
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fi
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# If the pihole user exists, then remove
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if id "pihole" &> /dev/null; then
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if ${SUDO} userdel -r pihole 2> /dev/null; then
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echo -e " ${TICK} Removed 'pihole' user"
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else
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echo -e " ${CROSS} Unable to remove 'pihole' user"
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fi
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fi
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echo -e "\\n We're sorry to see you go, but thanks for checking out Pi-hole!
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If you need help, reach out to us on Github, Discourse, Reddit or Twitter
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Reinstall at any time: ${COL_WHITE}curl -sSL https://install.pi-hole.net | bash${COL_NC}
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${COL_LIGHT_RED}Please reset the DNS on your router/clients to restore internet connectivity
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${COL_LIGHT_GREEN}Uninstallation Complete! ${COL_NC}"
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}
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######### SCRIPT ###########
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if command -v vcgencmd &> /dev/null; then
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echo -e " ${INFO} All dependencies are safe to remove on Raspbian"
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else
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echo -e " ${INFO} Be sure to confirm if any dependencies should not be removed"
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fi
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while true; do
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echo -e " ${INFO} ${COL_YELLOW}The following dependencies may have been added by the Pi-hole install:"
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echo -n " "
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for i in "${DEPS[@]}"; do
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echo -n "${i} "
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done
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echo "${COL_NC}"
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read -rp " ${QST} Do you wish to go through each dependency for removal? (Choosing No will leave all dependencies installed) [Y/n] " yn
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case ${yn} in
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[Yy]* ) removeAndPurge; break;;
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[Nn]* ) removeNoPurge; break;;
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* ) removeAndPurge; break;;
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esac
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done
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