#!/usr/bin/env 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 # Installs Pi-hole # # 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.net/donate # # Install with this command (from your Pi): # # curl -L install.pi-hole.net | bash set -e ######## VARIABLES ######### tmpLog=/tmp/pihole-install.log instalLogLoc=/etc/pihole/install.log setupVars=/etc/pihole/setupVars.conf webInterfaceGitUrl="https://github.com/pi-hole/AdminLTE.git" webInterfaceDir="/var/www/html/admin" piholeGitUrl="https://github.com/pi-hole/pi-hole.git" piholeFilesDir="/etc/.pihole" useUpdateVars=false IPv4_address="" IPv6_address="" # Find the rows and columns rows=$(tput lines) columns=$(tput cols) # Divide by two so the dialogs take up half of the screen, which looks nice. r=$(( rows / 2 )) c=$(( columns / 2 )) ######## FIRST CHECK ######## # Must be root to install echo ":::" if [[ $EUID -eq 0 ]];then echo "::: You are root." else echo "::: Script called with non-root privileges. The Pi-hole installs server packages and configures" echo "::: system networking, it requires elevated rights. Please check the contents of the script for" echo "::: any concerns with this requirement. Please be sure to download this script from a trusted source." echo ":::" echo "::: Detecting the presence of the sudo utility for continuation of this install..." if [ -x "$(command -v sudo)" ];then echo "::: Utility sudo located." exec sudo bash "$0" "$@" exit $? else echo "::: sudo is needed for the Web interface to run pihole commands. Please run this script as root and it will be automatically installed." exit 1 fi fi # Compatibility if [ -x "$(command -v apt-get)" ];then #Debian Family #Decide if php should be `php5` or just `php` (Fixes issues with Ubuntu 16.04 LTS) phpVer="php5" apt-get install --dry-run php5 > /dev/null 2>&1 || phpVer="php" ############################################# PKG_MANAGER="apt-get" PKG_CACHE="/var/lib/apt/lists/" UPDATE_PKG_CACHE="$PKG_MANAGER update" PKG_UPDATE="$PKG_MANAGER upgrade" PKG_INSTALL="$PKG_MANAGER --yes --fix-missing install" # grep -c will return 1 retVal on 0 matches, block this throwing the set -e with an OR TRUE PKG_COUNT="$PKG_MANAGER -s -o Debug::NoLocking=true upgrade | grep -c ^Inst || true" INSTALLER_DEPS=( apt-utils whiptail git dhcpcd5) PIHOLE_DEPS=( dnsutils bc dnsmasq lighttpd ${phpVer}-common ${phpVer}-cgi curl unzip wget sudo netcat cron iproute2 ) LIGHTTPD_USER="www-data" LIGHTTPD_GROUP="www-data" LIGHTTPD_CFG="lighttpd.conf.debian" DNSMASQ_USER="dnsmasq" package_check_install() { dpkg-query -W -f='${Status}' "$1" 2>/dev/null | grep -c "ok installed" || ${PKG_INSTALL} "$1" } elif [ -x "$(command -v rpm)" ];then # Fedora Family if [ -x "$(command -v dnf)" ];then PKG_MANAGER="dnf" else PKG_MANAGER="yum" fi PKG_CACHE="/var/cache/$PKG_MANAGER" UPDATE_PKG_CACHE="$PKG_MANAGER check-update" PKG_UPDATE="$PKG_MANAGER update -y" PKG_INSTALL="$PKG_MANAGER install -y" PKG_COUNT="$PKG_MANAGER check-update | grep -v ^Last | grep -c ^[a-zA-Z0-9]" INSTALLER_DEPS=( iproute net-tools procps-ng newt git ) PIHOLE_DEPS=( epel-release bind-utils bc dnsmasq lighttpd lighttpd-fastcgi php-common php-cli php curl unzip wget findutils cronie sudo nmap-ncat ) LIGHTTPD_USER="lighttpd" LIGHTTPD_GROUP="lighttpd" LIGHTTPD_CFG="lighttpd.conf.fedora" DNSMASQ_USER="nobody" package_check_install() { rpm -qa | grep ^"$1"- > /dev/null || ${PKG_INSTALL} "$1" } else echo "OS distribution not supported" exit fi ####### FUNCTIONS ########## 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 ${delay} printf "\b\b\b\b\b\b" done printf " \b\b\b\b" } find_IPv4_information() { # Find IP used to route to outside world IPv4dev=$(ip route get 8.8.8.8 | awk '{for(i=1;i<=NF;i++)if($i~/dev/)print $(i+1)}') IPv4_address=$(ip -o -f inet addr show dev "$IPv4dev" | awk '{print $4}' | awk 'END {print}') IPv4gw=$(ip route get 8.8.8.8 | awk '{print $3}') } get_available_interfaces() { # Get available interfaces. Consider only getting UP interfaces in the future, and leaving DOWN interfaces out of list. availableInterfaces=$(ip -o link | awk '{print $2}' | grep -v "lo" | cut -d':' -f1 | cut -d'@' -f1) } welcomeDialogs() { # Display the welcome dialog whiptail --msgbox --backtitle "Welcome" --title "Pi-hole automated installer" "\n\nThis installer will transform your device into a network-wide ad blocker!" ${r} ${c} # Support for a part-time dev whiptail --msgbox --backtitle "Plea" --title "Free and open source" "\n\nThe Pi-hole is free, but powered by your donations: http://pi-hole.net/donate" ${r} ${c} # Explain the need for a static address whiptail --msgbox --backtitle "Initiating network interface" --title "Static IP Needed" "\n\nThe Pi-hole is a SERVER so it needs a STATIC IP ADDRESS to function properly. In the next section, you can choose to use your current network settings (DHCP) or to manually edit them." ${r} ${c} } verifyFreeDiskSpace() { # 50MB is the minimum space needed (45MB install (includes web admin bootstrap/jquery libraries etc) + 5MB one day of logs.) # - Fourdee: Local ensures the variable is only created, and accessible within this function/void. Generally considered a "good" coding practice for non-global variables. echo "::: Verifying free disk space..." local required_free_kilobytes=51200 local existing_free_kilobytes=$(df -Pk | grep -m1 '\/$' | awk '{print $4}') # - Unknown free disk space , not a integer if ! [[ "$existing_free_kilobytes" =~ ^([0-9])+$ ]]; then echo "::: Unknown free disk space!" echo "::: We were unable to determine available free disk space on this system." echo "::: You may override this check and force the installation, however, it is not recommended" echo "::: To do so, pass the argument '--i_do_not_follow_recommendations' to the install script" echo "::: eg. curl -L https://install.pi-hole.net | bash /dev/stdin --i_do_not_follow_recommendations" exit 1 # - Insufficient free disk space elif [[ ${existing_free_kilobytes} -lt ${required_free_kilobytes} ]]; then echo "::: Insufficient Disk Space!" echo "::: Your system appears to be low on disk space. pi-hole recommends a minimum of $required_free_kilobytes KiloBytes." echo "::: You only have $existing_free_kilobytes KiloBytes free." echo "::: If this is a new install you may need to expand your disk." echo "::: Try running 'sudo raspi-config', and choose the 'expand file system option'" echo "::: After rebooting, run this installation again. (curl -L https://install.pi-hole.net | bash)" echo "Insufficient free space, exiting..." exit 1 fi } chooseInterface() { # Turn the available interfaces into an array so it can be used with a whiptail dialog local interfacesArray=() # Number of available interfaces local interfaceCount # Whiptail variable storage local chooseInterfaceCmd # Temporary Whiptail options storage local chooseInterfaceOptions # Loop sentinel variable local firstLoop=1 while read -r line do mode="OFF" if [[ ${firstLoop} -eq 1 ]]; then firstLoop=0 mode="ON" fi interfacesArray+=("$line" "available" "$mode") done <<< "$availableInterfaces" # Find out how many interfaces are available to choose from interfaceCount=$(echo "$availableInterfaces" | wc -l) chooseInterfaceCmd=(whiptail --separate-output --radiolist "Choose An Interface (press space to select)" ${r} ${c} ${interfaceCount}) chooseInterfaceOptions=$("${chooseInterfaceCmd[@]}" "${interfacesArray[@]}" 2>&1 >/dev/tty) if [[ $? = 0 ]]; then for desiredInterface in ${chooseInterfaceOptions} do piholeInterface=${desiredInterface} echo "::: Using interface: $piholeInterface" done else echo "::: Cancel selected, exiting...." exit 1 fi } useIPv6dialog() { # Show the IPv6 address used for blocking IPv6_address=$(ip -6 route get 2001:4860:4860::8888 | awk -F " " '{ for(i=1;i<=NF;i++) if ($i == "src") print $(i+1) }') whiptail --msgbox --backtitle "IPv6..." --title "IPv6 Supported" "$IPv6_address will be used to block ads." ${r} ${c} } use4andor6() { local useIPv4 local useIPv6 # Let use select IPv4 and/or IPv6 cmd=(whiptail --separate-output --checklist "Select Protocols (press space to select)" ${r} ${c} 2) options=(IPv4 "Block ads over IPv4" on IPv6 "Block ads over IPv6" off) choices=$("${cmd[@]}" "${options[@]}" 2>&1 >/dev/tty) if [[ $? = 0 ]];then for choice in ${choices} do case ${choice} in IPv4 ) useIPv4=true;; IPv6 ) useIPv6=true;; esac done if [[ ${useIPv4} ]]; then find_IPv4_information getStaticIPv4Settings setStaticIPv4 fi if [[ ${useIPv6} ]]; then useIPv6dialog fi echo "::: IPv4 address: ${IPv4_address}" echo "::: IPv6 address: ${IPv6_address}" if [ ! ${useIPv4} ] && [ ! ${useIPv6} ]; then echo "::: Cannot continue, neither IPv4 or IPv6 selected" echo "::: Exiting" exit 1 fi else echo "::: Cancel selected. Exiting..." exit 1 fi } getStaticIPv4Settings() { # Ask if the user wants to use DHCP settings as their static IP if (whiptail --backtitle "Calibrating network interface" --title "Static IP Address" --yesno "Do you want to use your current network settings as a static address? IP address: $IPv4_address Gateway: $IPv4gw" ${r} ${c}); then # If they choose yes, let the user know that the IP address will not be available via DHCP and may cause a conflict. whiptail --msgbox --backtitle "IP information" --title "FYI: IP Conflict" "It is possible your router could still try to assign this IP to a device, which would cause a conflict. But in most cases the router is smart enough to not do that. If you are worried, either manually set the address, or modify the DHCP reservation pool so it does not include the IP you want. It is also possible to use a DHCP reservation, but if you are going to do that, you might as well set a static address." ${r} ${c} # Nothing else to do since the variables are already set above else # Otherwise, we need to ask the user to input their desired settings. # Start by getting the IPv4 address (pre-filling it with info gathered from DHCP) # Start a loop to let the user enter their information with the chance to go back and edit it if necessary until [[ ${ipSettingsCorrect} = True ]] do # Ask for the IPv4 address IPv4_address=$(whiptail --backtitle "Calibrating network interface" --title "IPv4 address" --inputbox "Enter your desired IPv4 address" ${r} ${c} "$IPv4_address" 3>&1 1>&2 2>&3) if [[ $? = 0 ]];then echo "::: Your static IPv4 address: $IPv4_address" # Ask for the gateway IPv4gw=$(whiptail --backtitle "Calibrating network interface" --title "IPv4 gateway (router)" --inputbox "Enter your desired IPv4 default gateway" ${r} ${c} "$IPv4gw" 3>&1 1>&2 2>&3) if [[ $? = 0 ]];then echo "::: Your static IPv4 gateway: $IPv4gw" # Give the user a chance to review their settings before moving on if (whiptail --backtitle "Calibrating network interface" --title "Static IP Address" --yesno "Are these settings correct? IP address: $IPv4_address Gateway: $IPv4gw" ${r} ${c}); then # After that's done, the loop ends and we move on ipSettingsCorrect=True else # If the settings are wrong, the loop continues ipSettingsCorrect=False fi else # Cancelling gateway settings window ipSettingsCorrect=False echo "::: Cancel selected. Exiting..." exit 1 fi else # Cancelling IPv4 settings window ipSettingsCorrect=False echo "::: Cancel selected. Exiting..." exit 1 fi done # End the if statement for DHCP vs. static fi } setDHCPCD() { # Append these lines to dhcpcd.conf to enable a static IP echo "## interface $piholeInterface static ip_address=$IPv4_address static routers=$IPv4gw static domain_name_servers=$IPv4gw" | tee -a /etc/dhcpcd.conf >/dev/null } setStaticIPv4() { local IFCFG_FILE local IPADDR local CIDR if [[ -f /etc/dhcpcd.conf ]];then # Debian Family if grep -q "$IPv4_address" /etc/dhcpcd.conf; then echo "::: Static IP already configured" else setDHCPCD ip addr replace dev "$piholeInterface" "$IPv4_address" echo ":::" echo "::: Setting IP to $IPv4_address. You may need to restart after the install is complete." echo ":::" fi elif [[ -f /etc/sysconfig/network-scripts/ifcfg-${piholeInterface} ]];then # Fedora Family IFCFG_FILE=/etc/sysconfig/network-scripts/ifcfg-${piholeInterface} if grep -q "$IPv4_address" "${IFCFG_FILE}"; then echo "::: Static IP already configured" else IPADDR=$(echo "${IPv4_address}" | cut -f1 -d/) CIDR=$(echo "${IPv4_address}" | cut -f2 -d/) # Backup existing interface configuration: cp "${IFCFG_FILE}" "${IFCFG_FILE}".backup-"$(date +%Y-%m-%d-%H%M%S)" # Build Interface configuration file: { echo "# Configured via Pi-Hole installer" echo "DEVICE=$piholeInterface" echo "BOOTPROTO=none" echo "ONBOOT=yes" echo "IPADDR=$IPADDR" echo "PREFIX=$CIDR" echo "GATEWAY=$IPv4gw" echo "DNS1=$piholeDNS1" echo "DNS2=$piholeDNS2" echo "USERCTL=no" }>> "${IFCFG_FILE}" ip addr replace dev "$piholeInterface" "$IPv4_address" if [ -x "$(command -v nmcli)" ];then # Tell NetworkManager to read our new sysconfig file nmcli con load "${IFCFG_FILE}" > /dev/null fi echo ":::" echo "::: Setting IP to ${IPv4_address}. You may need to restart after the install is complete." echo ":::" fi else echo "::: Warning: Unable to locate configuration file to set static IPv4 address!" exit 1 fi } function valid_ip() { local ip=$1 local stat=1 if [[ ${ip} =~ ^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}$ ]]; then OIFS=$IFS IFS='.' ip=(${ip}) IFS=${OIFS} [[ ${ip[0]} -le 255 && ${ip[1]} -le 255 \ && ${ip[2]} -le 255 && ${ip[3]} -le 255 ]] stat=$? fi return ${stat} } setDNS(){ DNSChooseCmd=(whiptail --separate-output --radiolist "Select Upstream DNS Provider. To use your own, select Custom." ${r} ${c} 6) DNSChooseOptions=(Google "" on OpenDNS "" off Level3 "" off Norton "" off Comodo "" off Custom "" off) DNSchoices=$("${DNSChooseCmd[@]}" "${DNSChooseOptions[@]}" 2>&1 >/dev/tty) if [[ $? = 0 ]];then case ${DNSchoices} in Google) echo "::: Using Google DNS servers." piholeDNS1="8.8.8.8" piholeDNS2="8.8.4.4" ;; OpenDNS) echo "::: Using OpenDNS servers." piholeDNS1="208.67.222.222" piholeDNS2="208.67.220.220" ;; Level3) echo "::: Using Level3 servers." piholeDNS1="4.2.2.1" piholeDNS2="4.2.2.2" ;; Norton) echo "::: Using Norton ConnectSafe servers." piholeDNS1="199.85.126.10" piholeDNS2="199.85.127.10" ;; Comodo) echo "::: Using Comodo Secure servers." piholeDNS1="8.26.56.26" piholeDNS2="8.20.247.20" ;; Custom) until [[ ${DNSSettingsCorrect} = True ]] do strInvalid="Invalid" if [ ! ${piholeDNS1} ]; then if [ ! ${piholeDNS2} ]; then prePopulate="" else prePopulate=", $piholeDNS2" fi elif [ ${piholeDNS1} ] && [ ! ${piholeDNS2} ]; then prePopulate="$piholeDNS1" elif [ ${piholeDNS1} ] && [ ${piholeDNS2} ]; then prePopulate="$piholeDNS1, $piholeDNS2" fi piholeDNS=$(whiptail --backtitle "Specify Upstream DNS Provider(s)" --inputbox "Enter your desired upstream DNS provider(s), seperated by a comma.\n\nFor example '8.8.8.8, 8.8.4.4'" ${r} ${c} "$prePopulate" 3>&1 1>&2 2>&3) if [[ $? = 0 ]];then piholeDNS1=$(echo "$piholeDNS" | sed 's/[, \t]\+/,/g' | awk -F, '{print$1}') piholeDNS2=$(echo "$piholeDNS" | sed 's/[, \t]\+/,/g' | awk -F, '{print$2}') if ! valid_ip "$piholeDNS1" || [ ! "$piholeDNS1" ]; then piholeDNS1=${strInvalid} fi if ! valid_ip "$piholeDNS2" && [ "$piholeDNS2" ]; then piholeDNS2=${strInvalid} fi else echo "::: Cancel selected, exiting...." exit 1 fi if [[ ${piholeDNS1} == "$strInvalid" ]] || [[ ${piholeDNS2} == "$strInvalid" ]]; then whiptail --msgbox --backtitle "Invalid IP" --title "Invalid IP" "One or both entered IP addresses were invalid. Please try again.\n\n DNS Server 1: $piholeDNS1\n DNS Server 2: $piholeDNS2" ${r} ${c} if [[ ${piholeDNS1} == "$strInvalid" ]]; then piholeDNS1="" fi if [[ ${piholeDNS2} == "$strInvalid" ]]; then piholeDNS2="" fi DNSSettingsCorrect=False else if (whiptail --backtitle "Specify Upstream DNS Provider(s)" --title "Upstream DNS Provider(s)" --yesno "Are these settings correct?\n DNS Server 1: $piholeDNS1\n DNS Server 2: $piholeDNS2" ${r} ${c}); then DNSSettingsCorrect=True else # If the settings are wrong, the loop continues DNSSettingsCorrect=False fi fi done ;; esac else echo "::: Cancel selected. Exiting..." exit 1 fi } version_check_dnsmasq(){ # Check if /etc/dnsmasq.conf is from pihole. If so replace with an original and install new in .d directory local dnsmasq_conf="/etc/dnsmasq.conf" local dnsmasq_conf_orig="/etc/dnsmasq.conf.orig" local dnsmasq_pihole_id_string="addn-hosts=/etc/pihole/gravity.list" local dnsmasq_original_config="/etc/.pihole/advanced/dnsmasq.conf.original" local dnsmasq_pihole_01_snippet="/etc/.pihole/advanced/01-pihole.conf" local dnsmasq_pihole_01_location="/etc/dnsmasq.d/01-pihole.conf" if [ -f ${dnsmasq_conf} ]; then echo -n "::: Existing dnsmasq.conf found..." if grep -q ${dnsmasq_pihole_id_string} ${dnsmasq_conf}; then echo " it is from a previous pi-hole install." echo -n "::: Backing up dnsmasq.conf to dnsmasq.conf.orig..." mv -f ${dnsmasq_conf} ${dnsmasq_conf_orig} echo " done." echo -n "::: Restoring default dnsmasq.conf..." cp ${dnsmasq_original_config} ${dnsmasq_conf} echo " done." else echo " it is not a pi-hole file, leaving alone!" fi else echo -n "::: No dnsmasq.conf found.. restoring default dnsmasq.conf..." cp ${dnsmasq_original_config} ${dnsmasq_conf} echo " done." fi echo -n "::: Copying 01-pihole.conf to /etc/dnsmasq.d/01-pihole.conf..." cp ${dnsmasq_pihole_01_snippet} ${dnsmasq_pihole_01_location} echo " done." sed -i "s/@INT@/$piholeInterface/" ${dnsmasq_pihole_01_location} if [[ "$piholeDNS1" != "" ]]; then sed -i "s/@DNS1@/$piholeDNS1/" ${dnsmasq_pihole_01_location} else sed -i '/^server=@DNS1@/d' ${dnsmasq_pihole_01_location} fi if [[ "$piholeDNS2" != "" ]]; then sed -i "s/@DNS2@/$piholeDNS2/" ${dnsmasq_pihole_01_location} else sed -i '/^server=@DNS2@/d' ${dnsmasq_pihole_01_location} fi sed -i 's/^#conf-dir=\/etc\/dnsmasq.d$/conf-dir=\/etc\/dnsmasq.d/' ${dnsmasq_conf} } remove_legacy_scripts(){ #Tidy up /usr/local/bin directory if installing over previous install. oldFiles=( gravity chronometer whitelist blacklist piholeLogFlush updateDashboard uninstall setupLCD piholeDebug) for i in "${oldFiles[@]}"; do if [ -f "/usr/local/bin/$i.sh" ]; then rm /usr/local/bin/"$i".sh fi done } installScripts() { # Install the scripts from /etc/.pihole to their various locations echo ":::" echo -n "::: Installing scripts to /opt/pihole..." install -o "${USER}" -m755 -d /opt/pihole cd /etc/.pihole/ install -o "${USER}" -Dm755 -t /opt/pihole/ gravity.sh install -o "${USER}" -Dm755 -t /opt/pihole/ ./advanced/Scripts/*.sh install -o "${USER}" -Dm755 -t /usr/local/bin/ pihole install -Dm644 ./advanced/bash-completion/pihole /etc/bash_completion.d/pihole echo " done." } installConfigs() { # Install the configs from /etc/.pihole to their various locations echo ":::" echo "::: Installing configs..." version_check_dnsmasq if [ ! -d "/etc/lighttpd" ]; then mkdir /etc/lighttpd chown "$USER":root /etc/lighttpd mv /etc/lighttpd/lighttpd.conf /etc/lighttpd/lighttpd.conf.orig fi cp /etc/.pihole/advanced/${LIGHTTPD_CFG} /etc/lighttpd/lighttpd.conf mkdir -p /var/run/lighttpd chown ${LIGHTTPD_USER}:${LIGHTTPD_GROUP} /var/run/lighttpd mkdir -p /var/cache/lighttpd/compress chown ${LIGHTTPD_USER}:${LIGHTTPD_GROUP} /var/cache/lighttpd/compress } stop_service() { # Stop service passed in as argument. # Can softfail, as process may not be installed when this is called echo ":::" echo -n "::: Stopping ${1} service..." if [ -x "$(command -v systemctl)" ]; then systemctl stop "${1}" &> /dev/null & spinner $! || true else service "${1}" stop &> /dev/null & spinner $! || true fi echo " done." } start_service() { # Start/Restart service passed in as argument # This should not fail, it's an error if it does echo ":::" echo -n "::: Starting ${1} service..." if [ -x "$(command -v systemctl)" ]; then systemctl restart "${1}" &> /dev/null & spinner $! else service "${1}" restart &> /dev/null & spinner $! fi echo " done." } enable_service() { # Enable service so that it will start with next reboot echo ":::" echo -n "::: Enabling ${1} service to start on reboot..." if [ -x "$(command -v systemctl)" ]; then systemctl enable "${1}" &> /dev/null & spinner $! else update-rc.d "${1}" defaults &> /dev/null & spinner $! fi echo " done." } update_pacakge_cache() { #Running apt-get update/upgrade with minimal output can cause some issues with #requiring user input (e.g password for phpmyadmin see #218) #Check to see if apt-get update has already been run today #it needs to have been run at least once on new installs! timestamp=$(stat -c %Y ${PKG_CACHE}) timestampAsDate=$(date -d @"$timestamp" "+%b %e") today=$(date "+%b %e") if [ ! "$today" == "$timestampAsDate" ]; then #update package lists echo ":::" echo -n "::: $PKG_MANAGER update has not been run today. Running now..." ${UPDATE_PKG_CACHE} &> /dev/null & spinner $! echo " done!" fi } notify_package_updates_available(){ # Let user know if they have outdated packages on their system and # advise them to run a package update at soonest possible. echo ":::" echo -n "::: Checking $PKG_MANAGER for upgraded packages...." updatesToInstall=$(eval "${PKG_COUNT}") echo " done!" echo ":::" if [[ ${updatesToInstall} -eq "0" ]]; then echo "::: Your system is up to date! Continuing with Pi-hole installation..." else echo "::: There are $updatesToInstall updates available for your system!" echo "::: We recommend you run '$PKG_UPDATE' after installing Pi-Hole! " echo ":::" fi } install_dependent_packages(){ # Install packages passed in via argument array # No spinner - conflicts with set -e declare -a argArray1=("${!1}") for i in "${argArray1[@]}"; do echo -n "::: Checking for $i..." package_check_install "${i}" &> /dev/null echo " installed!" done } getGitFiles() { # Setup git repos for directory and repository passed # as arguments 1 and 2 echo ":::" echo "::: Checking for existing repository..." if is_repo "${1}"; then update_repo "${1}" else make_repo "${1}" "${2}" fi } is_repo() { # Use git to check if directory is currently under VCS echo -n "::: Checking $1 is a repo..." cd "${1}" &> /dev/null || return 1 git status &> /dev/null && echo " OK!"; return 0 || echo " not found!"; return 1 } make_repo() { # Remove the non-repod interface and clone the interface echo -n "::: Cloning $2 into $1..." rm -rf "${1}" git clone -q --depth 1 "${2}" "${1}" > /dev/null & spinner $! echo " done!" } update_repo() { # Pull the latest commits echo -n "::: Updating repo in $1..." cd "${1}" || exit 1 git pull -q > /dev/null & spinner $! echo " done!" } CreateLogFile() { # Create logfiles if necessary echo ":::" echo -n "::: Creating log file and changing owner to dnsmasq..." if [ ! -f /var/log/pihole.log ]; then touch /var/log/pihole.log chmod 644 /var/log/pihole.log chown "${DNSMASQ_USER}":root /var/log/pihole.log echo " done!" else echo " already exists!" fi } installPiholeWeb() { # Install the web interface echo ":::" echo -n "::: Installing pihole custom index page..." if [ -d "/var/www/html/pihole" ]; then echo " Existing page detected, not overwriting" else mkdir /var/www/html/pihole if [ -f /var/www/html/index.lighttpd.html ]; then mv /var/www/html/index.lighttpd.html /var/www/html/index.lighttpd.orig else printf "\n:::\tNo default index.lighttpd.html file found... not backing up" fi cp /etc/.pihole/advanced/index.* /var/www/html/pihole/. echo " done!" fi # Install Sudoer file echo -n "::: Installing sudoer file..." mkdir -p /etc/sudoers.d/ cp /etc/.pihole/advanced/pihole.sudo /etc/sudoers.d/pihole chmod 0440 /etc/sudoers.d/pihole echo " done!" } installCron() { # Install the cron job echo ":::" echo -n "::: Installing latest Cron script..." cp /etc/.pihole/advanced/pihole.cron /etc/cron.d/pihole echo " done!" } runGravity() { # Run gravity.sh to build blacklists echo ":::" echo "::: Preparing to run gravity.sh to refresh hosts..." if ls /etc/pihole/list* 1> /dev/null 2>&1; then echo "::: Cleaning up previous install (preserving whitelist/blacklist)" rm /etc/pihole/list.* fi echo "::: Running gravity.sh" /opt/pihole/gravity.sh } create_pihole_user(){ # Check if user pihole exists and create if not echo "::: Checking if user 'pihole' exists..." id -u pihole &> /dev/null && echo "::: User 'pihole' already exists" || (echo "::: User 'pihole' doesn't exist. Creating..." && useradd -r -s /usr/sbin/nologin pihole) } configureFirewall() { # Allow HTTP and DNS traffic if [ -x "$(command -v firewall-cmd)" ]; then firewall-cmd --state &> /dev/null && ( echo "::: Configuring firewalld for httpd and dnsmasq.." && firewall-cmd --permanent --add-port=80/tcp && firewall-cmd --permanent --add-port=53/tcp \ && firewall-cmd --permanent --add-port=53/udp && firewall-cmd --reload) || echo "::: FirewallD not enabled" elif [ -x "$(command -v iptables)" ]; then echo "::: Configuring iptables for httpd and dnsmasq.." iptables -A INPUT -p tcp -m tcp --dport 80 -j ACCEPT iptables -A INPUT -p tcp -m tcp --dport 53 -j ACCEPT iptables -A INPUT -p udp -m udp --dport 53 -j ACCEPT else echo "::: No firewall detected.. skipping firewall configuration." fi } finalExports() { #If it already exists, lets overwrite it with the new values. if [[ -f ${setupVars} ]];then rm ${setupVars} fi { echo "piholeInterface=${piholeInterface}" echo "IPv4_address=${IPv4_address}" echo "IPv6_address=${IPv6_address}" echo "piholeDNS1=${piholeDNS1}" echo "piholeDNS2=${piholeDNS2}" }>> "${setupVars}" } installPihole() { # Install base files and web interface create_pihole_user if [ ! -d "/var/www/html" ]; then mkdir -p /var/www/html fi chown ${LIGHTTPD_USER}:${LIGHTTPD_GROUP} /var/www/html chmod 775 /var/www/html usermod -a -G ${LIGHTTPD_GROUP} pihole if [ -x "$(command -v lighty-enable-mod)" ]; then lighty-enable-mod fastcgi fastcgi-php > /dev/null || true else printf "\n:::\tWarning: 'lighty-enable-mod' utility not found. Please ensure fastcgi is enabled if you experience issues.\n" fi installScripts installConfigs CreateLogFile configureSelinux installPiholeWeb installCron configureFirewall finalExports runGravity } updatePihole() { # Refactoring of install script has changed the name of a couple of variables. Sort them out here. sed -i 's/IPv4addr/IPv4_address/g' ${setupVars} sed -i 's/piholeIPv6/IPv6_address/g' ${setupVars} # Source ${setupVars} for use in the rest of the functions. . ${setupVars} # Install base files and web interface installScripts installConfigs CreateLogFile configureSelinux installPiholeWeb installCron configureFirewall runGravity } configureSelinux() { if [ -x "$(command -v getenforce)" ]; then printf "\n::: SELinux Detected\n" printf ":::\tChecking for SELinux policy development packages..." package_check_install "selinux-policy-devel" > /dev/null echo " installed!" printf "::: Enabling httpd server side includes (SSI).. " setsebool -P httpd_ssi_exec on &> /dev/null && echo "Success" || echo "SELinux not enabled" printf "\n:::\tCompiling Pi-Hole SELinux policy..\n" checkmodule -M -m -o /etc/pihole/pihole.mod /etc/.pihole/advanced/selinux/pihole.te semodule_package -o /etc/pihole/pihole.pp -m /etc/pihole/pihole.mod semodule -i /etc/pihole/pihole.pp rm -f /etc/pihole/pihole.mod semodule -l | grep pihole &> /dev/null && echo "::: Installed Pi-Hole SELinux policy" || echo "::: Warning: Pi-Hole SELinux policy did not install." fi } displayFinalMessage() { # Final completion message to user whiptail --msgbox --backtitle "Make it so." --title "Installation Complete!" "Configure your devices to use the Pi-hole as their DNS server using: IPv4: ${IPv4_address%/*} IPv6: $IPv6_address If you set a new IP address, you should restart the Pi. The install log is in /etc/pihole. View the web interface at http://pi.hole/admin or http://${IPv4_address%/*}/admin" ${r} ${c} } update_dialogs(){ UpdateCmd=$(whiptail --title "Existing Install Detected!" --menu "\n\nWe have detected an existing install.\n\nPlease choose from the following options:" ${r} ${c} 2 \ "Update" "Update install will retain existing settings." \ "Install" "Install will allow you to enter new settings." 3>&2 2>&1 1>&3) if [[ $? = 0 ]];then case ${UpdateCmd} in Update) echo "::: Updating existing install" useUpdateVars=true ;; Install) echo "::: Running complete install script" useUpdateVars=false ;; esac else echo "::: Cancel selected. Exiting..." exit 1 fi } main() { if [[ -f ${setupVars} ]];then if [ "$1" == "pihole" ]; then useUpdateVars=true else update_dialogs fi fi # Start the installer # Verify there is enough disk space for the install if [[ $1 = "--i_do_not_follow_recommendations" ]]; then echo "::: --i_do_not_follow_recommendations passed to script" echo "::: skipping free disk space verification!" else verifyFreeDiskSpace fi # Update package cache update_pacakge_cache # Notify user of package availability notify_package_updates_available # Install packages used by this installation script install_dependent_packages INSTALLER_DEPS[@] # Install packages used by the Pi-hole install_dependent_packages PIHOLE_DEPS[@] if [[ ${useUpdateVars} == false ]]; then # Display welcome dialogs welcomeDialogs # Create directory for Pi-hole storage mkdir -p /etc/pihole/ # Remove legacy scripts from previous storage location remove_legacy_scripts # Get Git files for Core and Admin getGitFiles ${piholeFilesDir} ${piholeGitUrl} getGitFiles ${webInterfaceDir} ${webInterfaceGitUrl} # Stop resolver and webserver while installing proceses stop_service dnsmasq stop_service lighttpd # Determine available interfaces get_available_interfaces # Find interfaces and let the user choose one chooseInterface # Let the user decide if they want to block ads over IPv4 and/or IPv6 use4andor6 # Decide what upstream DNS Servers to use setDNS # Install and log everything to a file installPihole | tee ${tmpLog} else updatePihole | tee ${tmpLog} fi # Move the log file into /etc/pihole for storage mv ${tmpLog} ${instalLogLoc} if [[ ${useUpdateVars} == false ]]; then displayFinalMessage fi echo -n "::: Restarting services..." # Start services start_service dnsmasq enable_service dnsmasq start_service lighttpd enable_service lighttpd echo " done." echo ":::" if [[ ${useUpdateVars} == false ]]; then echo "::: Installation Complete! Configure your devices to use the Pi-hole as their DNS server using:" echo "::: ${IPv4_address%/*}" echo "::: $IPv6_address" echo ":::" echo "::: If you set a new IP address, you should restart the Pi." else echo "::: Update complete!" fi echo ":::" echo "::: The install log is located at: /etc/pihole/install.log" echo "::: View the web interface at http://pi.hole/admin or http://${IPv4_address%/*}/admin" } main "$@"