pi-hole/pihole

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#!/bin/bash
# Pi-hole: A black hole for Internet advertisements
# (c) 2015, 2016 by Jacob Salmela
# Network-wide ad blocking via your Raspberry Pi
# http://pi-hole.net
# Controller for all pihole scripts and functions.
#
# Pi-hole is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
PI_HOLE_SCRIPT_DIR="/opt/pihole"
# Must be root to use this tool
if [[ ! $EUID -eq 0 ]];then
if [ -x "$(command -v sudo)" ];then
exec sudo bash "$0" "$@"
exit $?
else
echo "::: sudo is needed to run pihole commands. Please run this script as root or install sudo."
exit 1
fi
fi
webpageFunc() {
/opt/pihole/webpage.sh "$@"
exit 0
}
whitelistFunc() {
"${PI_HOLE_SCRIPT_DIR}"/list.sh "$@"
exit 0
}
blacklistFunc() {
"${PI_HOLE_SCRIPT_DIR}"/list.sh "$@"
exit 0
}
debugFunc() {
"${PI_HOLE_SCRIPT_DIR}"/piholeDebug.sh
exit 0
}
flushFunc() {
"${PI_HOLE_SCRIPT_DIR}"/piholeLogFlush.sh
exit 0
}
updatePiholeFunc() {
"${PI_HOLE_SCRIPT_DIR}"/update.sh
exit 0
}
reconfigurePiholeFunc() {
/etc/.pihole/automated\ install/basic-install.sh --reconfigure
exit 0;
}
updateGravityFunc() {
"${PI_HOLE_SCRIPT_DIR}"/gravity.sh "$@"
exit 0
}
setupLCDFunction() {
"${PI_HOLE_SCRIPT_DIR}"/setupLCD.sh
exit 0
}
scanList(){
domain="${1}"
list="${2}"
method="${3}"
if [[ ${method} == "-exact" ]] ; then
grep -i -E "(^|\s)${domain}($|\s)" "${list}"
else
grep -i "${domain}" "${list}"
fi
}
queryFunc() {
domain="${2}"
method="${3}"
lists=( /etc/pihole/list.* /etc/pihole/blacklist.txt)
for list in ${lists[@]}; do
result=$(scanList ${domain} ${list} ${method})
# Remove empty lines before couting number of results
count=$(sed '/^\s*$/d' <<< "$result" | wc -l)
echo "::: ${list} (${count} results)"
if [[ ${count} > 0 ]]; then
echo "${result}"
fi
echo ""
done
exit 0
}
chronometerFunc() {
shift
"${PI_HOLE_SCRIPT_DIR}"/chronometer.sh "$@"
exit 0
}
uninstallFunc() {
"${PI_HOLE_SCRIPT_DIR}"/uninstall.sh
exit 0
}
versionFunc() {
shift
"${PI_HOLE_SCRIPT_DIR}"/version.sh "$@"
exit 0
}
restartDNS() {
dnsmasqPid=$(pidof dnsmasq)
if [[ ${dnsmasqPid} ]]; then
# service already running - reload config
if [ -x "$(command -v systemctl)" ]; then
systemctl restart dnsmasq
else
service dnsmasq restart
fi
else
# service not running, start it up
if [ -x "$(command -v systemctl)" ]; then
systemctl start dnsmasq
else
service dnsmasq start
fi
fi
}
piholeEnable() {
if [[ "${1}" == "0" ]] ; then
#Disable Pihole
sed -i 's/^addn-hosts=\/etc\/pihole\/gravity.list/#addn-hosts=\/etc\/pihole\/gravity.list/' /etc/dnsmasq.d/01-pihole.conf
echo "::: Blocking has been disabled!"
if [[ $# > 1 ]] ; then
if [[ ${2} == *"s"* ]] ; then
tt=${2%"s"}
echo "::: Blocking will be re-enabled in ${tt} seconds"
nohup bash -c "sleep ${tt}; pihole enable" </dev/null &>/dev/null &
elif [[ ${2} == *"m"* ]] ; then
tt=${2%"m"}
echo "::: Blocking will be re-enabled in ${tt} minutes"
tt=$((${tt}*60))
nohup bash -c "sleep ${tt}; pihole enable" </dev/null &>/dev/null &
else
echo "::: Unknown format for delayed reactivation of the blocking!"
echo "::: Example:"
echo "::: pihole disable 5s - will disable blocking for 5 seconds"
echo "::: pihole disable 7m - will disable blocking for 7 minutes"
echo "::: Blocking will not automatically be re-enabled!"
fi
fi
else
#Enable pihole
echo "::: Blocking has been enabled!"
sed -i 's/^#addn-hosts/addn-hosts/' /etc/dnsmasq.d/01-pihole.conf
fi
restartDNS
}
piholeLogging() {
shift
if [[ "${1}" == "off" ]] ; then
#Disable Logging
sed -i 's/^log-queries/#log-queries/' /etc/dnsmasq.d/01-pihole.conf
sed -i 's/^QUERY_LOGGING=true/QUERY_LOGGING=false/' /etc/pihole/setupVars.conf
pihole -f
echo "::: Logging has been disabled!"
elif [[ "${1}" == "on" ]] ; then
#Enable logging
sed -i 's/^#log-queries/log-queries/' /etc/dnsmasq.d/01-pihole.conf
sed -i 's/^QUERY_LOGGING=false/QUERY_LOGGING=true/' /etc/pihole/setupVars.conf
echo "::: Logging has been enabled!"
else
echo "::: Invalid option passed, please pass 'on' or 'off'"
exit 1
fi
restartDNS
}
piholeStatus() {
if [[ $(netstat -plnt | grep -c ':53') > 0 ]]; then
if [[ "${1}" != "web" ]] ; then
echo "::: DNS service is running"
fi
else
if [[ "${1}" == "web" ]] ; then
echo "-1";
else
echo "::: DNS service is NOT running"
fi
return
fi
if [[ $(grep -i "^#addn-hosts=/" /etc/dnsmasq.d/01-pihole.conf) ]] ; then
#list is commented out
if [[ "${1}" == "web" ]] ; then
echo 0;
else
echo "::: Pi-hole blocking is Disabled";
fi
elif [[ $(grep -i "^addn-hosts=/" /etc/dnsmasq.d/01-pihole.conf) ]] ; then
#list set
if [[ "${1}" == "web" ]] ; then
echo 1;
else
echo "::: Pi-hole blocking is Enabled";
fi
else
#addn-host not found
if [[ "${1}" == "web" ]] ; then
echo 99
else
echo "::: No hosts file linked to dnsmasq, adding it in enabled state"
fi
#add addn-host= to dnsmasq
echo "addn-hosts=/etc/pihole/gravity.list" >> /etc/dnsmasq.d/01-pihole.conf
restartDNS
fi
}
tailFunc() {
echo "Press Ctrl-C to exit"
tail -F /var/log/pihole.log
exit 0
}
helpFunc() {
cat << EOM
::: Control all PiHole specific functions!
:::
::: Usage: pihole [options]
::: Add -h after -w (whitelist), -b (blacklist), -c (chronometer), or -a (admin) for more information on usage
:::
::: Options:
::: -w, whitelist Whitelist domains
::: -b, blacklist Blacklist domains
::: -d, debug Start a debugging session if having trouble
::: -f, flush Flush the pihole.log file
::: -t, tail Output the last lines of the pihole.log file. Lines are appended as the file grows
::: -up, updatePihole Update Pi-hole
::: -r, reconfigure Reconfigure or Repair Pi-hole
::: -g, updateGravity Update the list of ad-serving domains
::: -s, setupLCD Automatically configures the Pi to use the 2.8 LCD screen to display stats on it
::: -c, chronometer Calculates stats and displays to an LCD
::: -h, help Show this help dialog
::: -v, version Show current versions
::: -q, query Query the adlists for a specific domain
::: Use pihole -q domain -exact if you want to see exact matches only
::: -l, logging Enable or Disable logging (pass 'on' or 'off')
::: -a, admin Admin webpage options
::: uninstall Uninstall Pi-Hole from your system :(!
::: status Is Pi-Hole Enabled or Disabled
::: enable Enable Pi-Hole DNS Blocking
::: disable Disable Pi-Hole DNS Blocking
::: Blocking can also be disabled only temporarily, e.g.,
::: pihole disable 5m - will disable blocking for 5 minutes
::: restartdns Restart dnsmasq
EOM
exit 0
}
if [[ $# = 0 ]]; then
helpFunc
fi
# Handle redirecting to specific functions based on arguments
case "${1}" in
"-w" | "whitelist" ) whitelistFunc "$@";;
"-b" | "blacklist" ) blacklistFunc "$@";;
"-d" | "debug" ) debugFunc;;
"-f" | "flush" ) flushFunc;;
"-up" | "updatePihole" ) updatePiholeFunc;;
"-r" | "reconfigure" ) reconfigurePiholeFunc;;
"-g" | "updateGravity" ) updateGravityFunc "$@";;
"-s" | "setupLCD" ) setupLCDFunction;;
"-c" | "chronometer" ) chronometerFunc "$@";;
"-h" | "help" ) helpFunc;;
"-v" | "version" ) versionFunc "$@";;
"-q" | "query" ) queryFunc "$@";;
"-l" | "logging" ) piholeLogging "$@";;
"uninstall" ) uninstallFunc;;
"enable" ) piholeEnable 1;;
"disable" ) piholeEnable 0 $2;;
"status" ) piholeStatus "$2";;
"restartdns" ) restartDNS;;
"-a" | "admin" ) webpageFunc "$@";;
"-t" | "tail" ) tailFunc;;
* ) helpFunc;;
esac