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#!/usr/bin/env bash
# shellcheck disable=SC1090
# Pi-hole: A black hole for Internet advertisements
# (c) 2017 Pi-hole, LLC (https://pi-hole.net)
# Network-wide ad blocking via your own hardware.
#
# Web interface settings
#
# This file is copyright under the latest version of the EUPL.
# Please see LICENSE file for your rights under this license.
readonly setupVars="/etc/pihole/setupVars.conf"
readonly dnsmasqconfig="/etc/dnsmasq.d/01-pihole.conf"
readonly dhcpconfig="/etc/dnsmasq.d/02-pihole-dhcp.conf"
readonly FTLconf="/etc/pihole/pihole-FTL.conf"
# 03 -> wildcards
readonly dhcpstaticconfig="/etc/dnsmasq.d/04-pihole-static-dhcp.conf"
coltable="/opt/pihole/COL_TABLE"
if [[ -f ${coltable} ]]; then
source ${coltable}
fi
helpFunc() {
echo "Usage: pihole -a [options]
Example: pihole -a -p password
Set options for the Admin Console
Options:
-p, password Set Admin Console password
-c, celsius Set Celsius as preferred temperature unit
-f, fahrenheit Set Fahrenheit as preferred temperature unit
-k, kelvin Set Kelvin as preferred temperature unit
-r, hostrecord Add a name to the DNS associated to an IPv4/IPv6 address
-e, email Set an administrative contact address for the Block Page
-h, --help Show this help dialog
-i, interface Specify dnsmasq's interface listening behavior
-l, privacylevel Set privacy level (0 = lowest, 3 = highest)"
exit 0
}
add_setting() {
echo "${1}=${2}" >> "${setupVars}"
}
delete_setting() {
sed -i "/${1}/d" "${setupVars}"
}
change_setting() {
delete_setting "${1}"
add_setting "${1}" "${2}"
}
addFTLsetting() {
echo "${1}=${2}" >> "${FTLconf}"
}
deleteFTLsetting() {
sed -i "/${1}/d" "${FTLconf}"
}
changeFTLsetting() {
deleteFTLsetting "${1}"
addFTLsetting "${1}" "${2}"
}
add_dnsmasq_setting() {
if [[ "${2}" != "" ]]; then
echo "${1}=${2}" >> "${dnsmasqconfig}"
else
echo "${1}" >> "${dnsmasqconfig}"
fi
}
delete_dnsmasq_setting() {
sed -i "/${1}/d" "${dnsmasqconfig}"
}
SetTemperatureUnit() {
change_setting "TEMPERATUREUNIT" "${unit}"
echo -e " ${TICK} Set temperature unit to ${unit}"
}
HashPassword() {
# Compute password hash twice to avoid rainbow table vulnerability
return=$(echo -n ${1} | sha256sum | sed 's/\s.*$//')
return=$(echo -n ${return} | sha256sum | sed 's/\s.*$//')
echo ${return}
}
SetWebPassword() {
if [ "${SUDO_USER}" == "www-data" ]; then
echo "Security measure: user www-data is not allowed to change webUI password!"
echo "Exiting"
exit 1
fi
if [ "${SUDO_USER}" == "lighttpd" ]; then
echo "Security measure: user lighttpd is not allowed to change webUI password!"
echo "Exiting"
exit 1
fi
if (( ${#args[2]} > 0 )) ; then
readonly PASSWORD="${args[2]}"
readonly CONFIRM="${PASSWORD}"
else
# Prevents a bug if the user presses Ctrl+C and it continues to hide the text typed.
# So we reset the terminal via stty if the user does press Ctrl+C
trap '{ echo -e "\nNo password will be set" ; stty sane ; exit 1; }' INT
read -s -r -p "Enter New Password (Blank for no password): " PASSWORD
echo ""
if [ "${PASSWORD}" == "" ]; then
change_setting "WEBPASSWORD" ""
echo -e " ${TICK} Password Removed"
exit 0
fi
read -s -r -p "Confirm Password: " CONFIRM
echo ""
fi
if [ "${PASSWORD}" == "${CONFIRM}" ] ; then
# We do not wrap this in brackets, otherwise BASH will expand any appropriate syntax
hash=$(HashPassword "$PASSWORD")
# Save hash to file
change_setting "WEBPASSWORD" "${hash}"
echo -e " ${TICK} New password set"
else
echo -e " ${CROSS} Passwords don't match. Your password has not been changed"
exit 1
fi
}
ProcessDNSSettings() {
source "${setupVars}"
delete_dnsmasq_setting "server"
COUNTER=1
while [[ 1 ]]; do
var=PIHOLE_DNS_${COUNTER}
if [ -z "${!var}" ]; then
break;
fi
add_dnsmasq_setting "server" "${!var}"
let COUNTER=COUNTER+1
done
# The option LOCAL_DNS_PORT is deprecated
# We apply it once more, and then convert it into the current format
if [ ! -z "${LOCAL_DNS_PORT}" ]; then
add_dnsmasq_setting "server" "127.0.0.1#${LOCAL_DNS_PORT}"
add_setting "PIHOLE_DNS_${COUNTER}" "127.0.0.1#${LOCAL_DNS_PORT}"
delete_setting "LOCAL_DNS_PORT"
fi
delete_dnsmasq_setting "domain-needed"
if [[ "${DNS_FQDN_REQUIRED}" == true ]]; then
add_dnsmasq_setting "domain-needed"
fi
delete_dnsmasq_setting "bogus-priv"
if [[ "${DNS_BOGUS_PRIV}" == true ]]; then
add_dnsmasq_setting "bogus-priv"
fi
delete_dnsmasq_setting "dnssec"
delete_dnsmasq_setting "trust-anchor="
if [[ "${DNSSEC}" == true ]]; then
echo "dnssec
trust-anchor=.,19036,8,2,49AAC11D7B6F6446702E54A1607371607A1A41855200FD2CE1CDDE32F24E8FB5
trust-anchor=.,20326,8,2,E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC683457104237C7F8EC8D
" >> "${dnsmasqconfig}"
fi
delete_dnsmasq_setting "host-record"
if [ ! -z "${HOSTRECORD}" ]; then
add_dnsmasq_setting "host-record" "${HOSTRECORD}"
fi
# Setup interface listening behavior of dnsmasq
delete_dnsmasq_setting "interface"
delete_dnsmasq_setting "local-service"
if [[ "${DNSMASQ_LISTENING}" == "all" ]]; then
# Listen on all interfaces, permit all origins
add_dnsmasq_setting "except-interface" "nonexisting"
elif [[ "${DNSMASQ_LISTENING}" == "local" ]]; then
# Listen only on all interfaces, but only local subnets
add_dnsmasq_setting "local-service"
else
# Listen only on one interface
# Use eth0 as fallback interface if interface is missing in setupVars.conf
if [ -z "${PIHOLE_INTERFACE}" ]; then
PIHOLE_INTERFACE="eth0"
fi
add_dnsmasq_setting "interface" "${PIHOLE_INTERFACE}"
fi
if [[ "${CONDITIONAL_FORWARDING}" == true ]]; then
add_dnsmasq_setting "server=/${CONDITIONAL_FORWARDING_DOMAIN}/${CONDITIONAL_FORWARDING_IP}"
add_dnsmasq_setting "server=/${CONDITIONAL_FORWARDING_REVERSE}/${CONDITIONAL_FORWARDING_IP}"
fi
}
SetDNSServers() {
# Save setting to file
delete_setting "PIHOLE_DNS"
IFS=',' read -r -a array <<< "${args[2]}"
for index in "${!array[@]}"
do
add_setting "PIHOLE_DNS_$((index+1))" "${array[index]}"
done
if [[ "${args[3]}" == "domain-needed" ]]; then
change_setting "DNS_FQDN_REQUIRED" "true"
else
change_setting "DNS_FQDN_REQUIRED" "false"
fi
if [[ "${args[4]}" == "bogus-priv" ]]; then
change_setting "DNS_BOGUS_PRIV" "true"
else
change_setting "DNS_BOGUS_PRIV" "false"
fi
if [[ "${args[5]}" == "dnssec" ]]; then
change_setting "DNSSEC" "true"
else
change_setting "DNSSEC" "false"
fi
if [[ "${args[6]}" == "conditional_forwarding" ]]; then
change_setting "CONDITIONAL_FORWARDING" "true"
change_setting "CONDITIONAL_FORWARDING_IP" "${args[7]}"
change_setting "CONDITIONAL_FORWARDING_DOMAIN" "${args[8]}"
change_setting "CONDITIONAL_FORWARDING_REVERSE" "${args[9]}"
else
change_setting "CONDITIONAL_FORWARDING" "false"
delete_setting "CONDITIONAL_FORWARDING_IP"
delete_setting "CONDITIONAL_FORWARDING_DOMAIN"
delete_setting "CONDITIONAL_FORWARDING_REVERSE"
fi
ProcessDNSSettings
# Restart dnsmasq to load new configuration
RestartDNS
}
SetExcludeDomains() {
change_setting "API_EXCLUDE_DOMAINS" "${args[2]}"
}
SetExcludeClients() {
change_setting "API_EXCLUDE_CLIENTS" "${args[2]}"
}
Poweroff(){
nohup bash -c "sleep 5; poweroff" &> /dev/null </dev/null &
}
Reboot() {
nohup bash -c "sleep 5; reboot" &> /dev/null </dev/null &
}
RestartDNS() {
/usr/local/bin/pihole restartdns
}
SetQueryLogOptions() {
change_setting "API_QUERY_LOG_SHOW" "${args[2]}"
}
ProcessDHCPSettings() {
source "${setupVars}"
if [[ "${DHCP_ACTIVE}" == "true" ]]; then
interface="${PIHOLE_INTERFACE}"
# Use eth0 as fallback interface
if [ -z ${interface} ]; then
interface="eth0"
fi
if [[ "${PIHOLE_DOMAIN}" == "" ]]; then
PIHOLE_DOMAIN="lan"
change_setting "PIHOLE_DOMAIN" "${PIHOLE_DOMAIN}"
fi
if [[ "${DHCP_LEASETIME}" == "0" ]]; then
leasetime="infinite"
elif [[ "${DHCP_LEASETIME}" == "" ]]; then
leasetime="24"
change_setting "DHCP_LEASETIME" "${leasetime}"
elif [[ "${DHCP_LEASETIME}" == "24h" ]]; then
#Installation is affected by known bug, introduced in a previous version.
#This will automatically clean up setupVars.conf and remove the unnecessary "h"
leasetime="24"
change_setting "DHCP_LEASETIME" "${leasetime}"
else
leasetime="${DHCP_LEASETIME}h"
fi
# Write settings to file
echo "###############################################################################
# DHCP SERVER CONFIG FILE AUTOMATICALLY POPULATED BY PI-HOLE WEB INTERFACE. #
# ANY CHANGES MADE TO THIS FILE WILL BE LOST ON CHANGE #
###############################################################################
dhcp-authoritative
dhcp-range=${DHCP_START},${DHCP_END},${leasetime}
dhcp-option=option:router,${DHCP_ROUTER}
dhcp-leasefile=/etc/pihole/dhcp.leases
#quiet-dhcp
" > "${dhcpconfig}"
if [[ "${PIHOLE_DOMAIN}" != "none" ]]; then
echo "domain=${PIHOLE_DOMAIN}" >> "${dhcpconfig}"
fi
if [[ "${DHCP_IPv6}" == "true" ]]; then
echo "#quiet-dhcp6
#enable-ra
dhcp-option=option6:dns-server,[::]
dhcp-range=::100,::1ff,constructor:${interface},ra-names,slaac,${leasetime}
ra-param=*,0,0
" >> "${dhcpconfig}"
fi
else
if [[ -f "${dhcpconfig}" ]]; then
rm "${dhcpconfig}" &> /dev/null
fi
fi
}
EnableDHCP() {
change_setting "DHCP_ACTIVE" "true"
change_setting "DHCP_START" "${args[2]}"
change_setting "DHCP_END" "${args[3]}"
change_setting "DHCP_ROUTER" "${args[4]}"
change_setting "DHCP_LEASETIME" "${args[5]}"
change_setting "PIHOLE_DOMAIN" "${args[6]}"
change_setting "DHCP_IPv6" "${args[7]}"
# Remove possible old setting from file
delete_dnsmasq_setting "dhcp-"
delete_dnsmasq_setting "quiet-dhcp"
ProcessDHCPSettings
RestartDNS
}
DisableDHCP() {
change_setting "DHCP_ACTIVE" "false"
# Remove possible old setting from file
delete_dnsmasq_setting "dhcp-"
delete_dnsmasq_setting "quiet-dhcp"
ProcessDHCPSettings
RestartDNS
}
SetWebUILayout() {
change_setting "WEBUIBOXEDLAYOUT" "${args[2]}"
}
CustomizeAdLists() {
list="/etc/pihole/adlists.list"
if [[ "${args[2]}" == "enable" ]]; then
sed -i "\\@${args[3]}@s/^#http/http/g" "${list}"
elif [[ "${args[2]}" == "disable" ]]; then
sed -i "\\@${args[3]}@s/^http/#http/g" "${list}"
elif [[ "${args[2]}" == "add" ]]; then
if [[ $(grep -c "^${args[3]}$" "${list}") -eq 0 ]] ; then
echo "${args[3]}" >> ${list}
fi
elif [[ "${args[2]}" == "del" ]]; then
var=$(echo "${args[3]}" | sed 's/\//\\\//g')
sed -i "/${var}/Id" "${list}"
else
echo "Not permitted"
return 1
fi
}
SetPrivacyMode() {
if [[ "${args[2]}" == "true" ]]; then
change_setting "API_PRIVACY_MODE" "true"
else
change_setting "API_PRIVACY_MODE" "false"
fi
}
ResolutionSettings() {
typ="${args[2]}"
state="${args[3]}"
if [[ "${typ}" == "forward" ]]; then
change_setting "API_GET_UPSTREAM_DNS_HOSTNAME" "${state}"
elif [[ "${typ}" == "clients" ]]; then
change_setting "API_GET_CLIENT_HOSTNAME" "${state}"
fi
}
AddDHCPStaticAddress() {
mac="${args[2]}"
ip="${args[3]}"
host="${args[4]}"
if [[ "${ip}" == "noip" ]]; then
# Static host name
echo "dhcp-host=${mac},${host}" >> "${dhcpstaticconfig}"
elif [[ "${host}" == "nohost" ]]; then
# Static IP
echo "dhcp-host=${mac},${ip}" >> "${dhcpstaticconfig}"
else
# Full info given
echo "dhcp-host=${mac},${ip},${host}" >> "${dhcpstaticconfig}"
fi
}
RemoveDHCPStaticAddress() {
mac="${args[2]}"
sed -i "/dhcp-host=${mac}.*/d" "${dhcpstaticconfig}"
}
SetHostRecord() {
if [[ "${1}" == "-h" ]] || [[ "${1}" == "--help" ]]; then
echo "Usage: pihole -a hostrecord <domain> [IPv4-address],[IPv6-address]
Example: 'pihole -a hostrecord home.domain.com 192.168.1.1,2001:db8:a0b:12f0::1'
Add a name to the DNS associated to an IPv4/IPv6 address
Options:
\"\" Empty: Remove host record
-h, --help Show this help dialog"
exit 0
fi
if [[ -n "${args[3]}" ]]; then
change_setting "HOSTRECORD" "${args[2]},${args[3]}"
echo -e " ${TICK} Setting host record for ${args[2]} to ${args[3]}"
else
change_setting "HOSTRECORD" ""
echo -e " ${TICK} Removing host record"
fi
ProcessDNSSettings
# Restart dnsmasq to load new configuration
RestartDNS
}
SetAdminEmail() {
if [[ "${1}" == "-h" ]] || [[ "${1}" == "--help" ]]; then
echo "Usage: pihole -a email <address>
Example: 'pihole -a email admin@address.com'
Set an administrative contact address for the Block Page
Options:
\"\" Empty: Remove admin contact
-h, --help Show this help dialog"
exit 0
fi
if [[ -n "${args[2]}" ]]; then
change_setting "ADMIN_EMAIL" "${args[2]}"
echo -e " ${TICK} Setting admin contact to ${args[2]}"
else
change_setting "ADMIN_EMAIL" ""
echo -e " ${TICK} Removing admin contact"
fi
}
SetListeningMode() {
source "${setupVars}"
if [[ "$3" == "-h" ]] || [[ "$3" == "--help" ]]; then
echo "Usage: pihole -a -i [interface]
Example: 'pihole -a -i local'
Specify dnsmasq's network interface listening behavior
Interfaces:
local Listen on all interfaces, but only allow queries from
devices that are at most one hop away (local devices)
single Listen only on ${PIHOLE_INTERFACE} interface
all Listen on all interfaces, permit all origins"
exit 0
fi
if [[ "${args[2]}" == "all" ]]; then
echo -e " ${INFO} Listening on all interfaces, permiting all origins. Please use a firewall!"
change_setting "DNSMASQ_LISTENING" "all"
elif [[ "${args[2]}" == "local" ]]; then
echo -e " ${INFO} Listening on all interfaces, permiting origins from one hop away (LAN)"
change_setting "DNSMASQ_LISTENING" "local"
else
echo -e " ${INFO} Listening only on interface ${PIHOLE_INTERFACE}"
change_setting "DNSMASQ_LISTENING" "single"
fi
# Don't restart DNS server yet because other settings
# will be applied afterwards if "-web" is set
if [[ "${args[3]}" != "-web" ]]; then
ProcessDNSSettings
# Restart dnsmasq to load new configuration
RestartDNS
fi
}
Teleporter() {
local datetimestamp=$(date "+%Y-%m-%d_%H-%M-%S")
php /var/www/html/admin/scripts/pi-hole/php/teleporter.php > "pi-hole-teleporter_${datetimestamp}.zip"
}
addAudit()
{
shift # skip "-a"
shift # skip "audit"
for var in "$@"
do
echo "${var}" >> /etc/pihole/auditlog.list
done
}
clearAudit()
{
echo -n "" > /etc/pihole/auditlog.list
}
SetPrivacyLevel() {
# Set privacy level. Minimum is 0, maximum is 4
if [ "${args[2]}" -ge 0 ] && [ "${args[2]}" -le 4 ]; then
changeFTLsetting "PRIVACYLEVEL" "${args[2]}"
fi
}
main() {
args=("$@")
case "${args[1]}" in
"-p" | "password" ) SetWebPassword;;
"-c" | "celsius" ) unit="C"; SetTemperatureUnit;;
"-f" | "fahrenheit" ) unit="F"; SetTemperatureUnit;;
"-k" | "kelvin" ) unit="K"; SetTemperatureUnit;;
"setdns" ) SetDNSServers;;
"setexcludedomains" ) SetExcludeDomains;;
"setexcludeclients" ) SetExcludeClients;;
"poweroff" ) Poweroff;;
"reboot" ) Reboot;;
"restartdns" ) RestartDNS;;
"setquerylog" ) SetQueryLogOptions;;
"enabledhcp" ) EnableDHCP;;
"disabledhcp" ) DisableDHCP;;
"layout" ) SetWebUILayout;;
"-h" | "--help" ) helpFunc;;
"privacymode" ) SetPrivacyMode;;
"resolve" ) ResolutionSettings;;
"addstaticdhcp" ) AddDHCPStaticAddress;;
"removestaticdhcp" ) RemoveDHCPStaticAddress;;
"-r" | "hostrecord" ) SetHostRecord "$3";;
"-e" | "email" ) SetAdminEmail "$3";;
"-i" | "interface" ) SetListeningMode "$@";;
"-t" | "teleporter" ) Teleporter;;
"adlist" ) CustomizeAdLists;;
"audit" ) addAudit "$@";;
"clearaudit" ) clearAudit;;
"-l" | "privacylevel" ) SetPrivacyLevel;;
* ) helpFunc;;
esac
shift
if [[ $# = 0 ]]; then
helpFunc
fi
}