#!/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 lighttpdConfig=/etc/lighttpd/lighttpd.conf webInterfaceGitUrl="https://github.com/pi-hole/AdminLTE.git" webInterfaceDir="/var/www/html/admin" piholeGitUrl="https://github.com/pi-hole/pi-hole.git" PI_HOLE_LOCAL_REPO="/etc/.pihole" PI_HOLE_FILES=(chronometer list piholeDebug piholeLogFlush setupLCD update version) useUpdateVars=false IPV4_ADDRESS="" IPV6_ADDRESS="" QUERY_LOGGING=true # Find the rows and columns will default to 80x24 is it can not be detected screen_size=$(stty size 2>/dev/null || echo 24 80) rows=$(echo "${screen_size}" | awk '{print $1}') columns=$(echo "${screen_size}" | awk '{print $2}') # Divide by two so the dialogs take up half of the screen, which looks nice. r=$(( rows / 2 )) c=$(( columns / 2 )) # Unless the screen is tiny r=$(( r < 20 ? 20 : r )) c=$(( c < 70 ? 70 : c )) ######## Undocumented Flags. Shhh ######## skipSpaceCheck=false reconfigure=false runUnattended=false # Compatibility if command -v apt-get &> /dev/null; then #Debian Family ############################################# PKG_MANAGER="apt-get" UPDATE_PKG_CACHE="${PKG_MANAGER} update" PKG_INSTALL="${PKG_MANAGER} --yes --no-install-recommends install" # grep -c will return 1 retVal on 0 matches, block this throwing the set -e with an OR TRUE PKG_COUNT="${PKG_MANAGER} -s -o Debug::NoLocking=true upgrade | grep -c ^Inst || true" # ######################################### # fixes for dependancy differences # Debian 7 doesn't have iproute2 use iproute ${PKG_MANAGER} install --dry-run iproute2 > /dev/null 2>&1 && IPROUTE_PKG="iproute2" || IPROUTE_PKG="iproute" # Prefer the php metapackage if it's there, fall back on the php5 pacakges ${PKG_MANAGER} install --dry-run php > /dev/null 2>&1 && phpVer="php" || phpVer="php5" # ######################################### INSTALLER_DEPS=(apt-utils debconf dhcpcd5 git whiptail) PIHOLE_DEPS=(bc cron curl dnsmasq dnsutils ${IPROUTE_PKG} iputils-ping lighttpd lsof netcat ${phpVer}-common ${phpVer}-cgi sudo unzip wget) LIGHTTPD_USER="www-data" LIGHTTPD_GROUP="www-data" LIGHTTPD_CFG="lighttpd.conf.debian" DNSMASQ_USER="dnsmasq" elif command -v rpm &> /dev/null; then # Fedora Family if command -v dnf &> /dev/null; then PKG_MANAGER="dnf" else PKG_MANAGER="yum" fi # Fedora and family update cache on every PKG_INSTALL call, no need for a separate update. UPDATE_PKG_CACHE=":" PKG_INSTALL="${PKG_MANAGER} install -y" PKG_COUNT="${PKG_MANAGER} check-update | egrep '(.i686|.x86|.noarch|.arm|.src)' | wc -l" INSTALLER_DEPS=(git iproute net-tools newt procps-ng) PIHOLE_DEPS=(bc bind-utils cronie curl dnsmasq findutils lighttpd lighttpd-fastcgi nmap-ncat php php-common php-cli sudo unzip wget) if ! grep -q 'Fedora' /etc/redhat-release; then INSTALLER_DEPS=("${INSTALLER_DEPS[@]}" "epel-release"); fi LIGHTTPD_USER="lighttpd" LIGHTTPD_GROUP="lighttpd" LIGHTTPD_CFG="lighttpd.conf.fedora" DNSMASQ_USER="nobody" else echo "OS distribution not supported" exit fi ####### FUNCTIONS ########## is_repo() { # Use git to check if directory is currently under VCS, return the value 128 # if directory is not a repo. Return 1 if directory does not exist. local directory="${1}" local curdir local rc curdir="${PWD}" if [[ -d "${directory}" ]]; then # git -C is not used here to support git versions older than 1.8.4 cd "${directory}" git status --short &> /dev/null || rc=$? else # non-zero return code if directory does not exist rc=1 fi cd "${curdir}" return "${rc:-0}" } make_repo() { local directory="${1}" local remoteRepo="${2}" echo -n "::: Cloning ${remoteRepo} into ${directory}..." # Clean out the directory if it exists for git to clone into if [[ -d "${directory}" ]]; then rm -rf "${directory}" fi git clone -q --depth 1 "${remoteRepo}" "${directory}" &> /dev/null || return $? echo " done!" return 0 } update_repo() { local directory="${1}" # Pull the latest commits echo -n "::: Updating repo in ${1}..." if [[ -d "${directory}" ]]; then cd "${directory}" git stash -q &> /dev/null || true # Okay for stash failure git pull -q &> /dev/null || return $? echo " done!" fi return 0 } getGitFiles() { # Setup git repos for directory and repository passed # as arguments 1 and 2 local directory="${1}" local remoteRepo="${2}" echo ":::" echo "::: Checking for existing repository..." if is_repo "${directory}"; then update_repo "${directory}" || return 1 else make_repo "${directory}" "${remoteRepo}" || return 1 fi return 0 } find_IPv4_information() { local route # Find IP used to route to outside world route=$(ip route get 8.8.8.8) IPv4dev=$(awk '{for (i=1; i<=NF; i++) if ($i~/dev/) print $(i+1)}' <<< "${route}") IPV4_ADDRESS=$(awk '{print $7}' <<< "${route}") IPv4gw=$(awk '{print $3}' <<< "${route}") } get_available_interfaces() { # Get available UP interfaces. availableInterfaces=$(ip -o link | grep "state UP" | awk '{print $2}' | 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 if [[ $(echo "${availableInterfaces}" | wc -l) -eq 1 ]]; then PIHOLE_INTERFACE="${availableInterfaces}" return fi 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) || \ { echo "::: Cancel selected. Exiting"; exit 1; } for desiredInterface in ${chooseInterfaceOptions}; do PIHOLE_INTERFACE=${desiredInterface} echo "::: Using interface: $PIHOLE_INTERFACE" done } useIPv6dialog() { # Show the IPv6 address used for blocking IPV6_ADDRESS=$(ip -6 route get 2001:4860:4860::8888 | grep -v "unreachable" | awk -F " " '{ for(i=1;i<=NF;i++) if ($i == "src") print $(i+1) }') if [[ ! -z "${IPV6_ADDRESS}" ]]; then whiptail --msgbox --backtitle "IPv6..." --title "IPv6 Supported" "$IPV6_ADDRESS will be used to block ads." ${r} ${c} fi } use4andor6() { local useIPv4 local useIPv6 # Let use select IPv4 and/or IPv6 cmd=(whiptail --separate-output --checklist "Select Protocols (press space to select)" ${r} ${c} 2) options=(IPv4 "Block ads over IPv4" on IPv6 "Block ads over IPv6" on) choices=$("${cmd[@]}" "${options[@]}" 2>&1 >/dev/tty) || { echo "::: Cancel selected. Exiting"; exit 1; } 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 } 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) || \ # Cancelling IPv4 settings window { ipSettingsCorrect=False; echo "::: Cancel selected. Exiting..."; exit 1; } 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) || \ # Cancelling gateway settings window { ipSettingsCorrect=False; echo "::: Cancel selected. Exiting..."; exit 1; } 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 done # End the if statement for DHCP vs. static fi } setDHCPCD() { # Append these lines to dhcpcd.conf to enable a static IP echo "## interface ${PIHOLE_INTERFACE} static ip_address=${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 "${IPV4_ADDRESS}" /etc/dhcpcd.conf; then echo "::: Static IP already configured" else setDHCPCD ip addr replace dev "${PIHOLE_INTERFACE}" "${IPV4_ADDRESS}" echo ":::" echo "::: Setting IP to ${IPV4_ADDRESS}. You may need to restart after the install is complete." echo ":::" fi elif [[ -f /etc/sysconfig/network-scripts/ifcfg-${PIHOLE_INTERFACE} ]];then # Fedora Family IFCFG_FILE=/etc/sysconfig/network-scripts/ifcfg-${PIHOLE_INTERFACE} if grep -q "${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}" "${IFCFG_FILE}".pihole.orig # Build Interface configuration file: { echo "# Configured via Pi-Hole installer" echo "DEVICE=$PIHOLE_INTERFACE" echo "BOOTPROTO=none" echo "ONBOOT=yes" echo "IPADDR=$IPADDR" echo "PREFIX=$CIDR" echo "GATEWAY=$IPv4gw" echo "DNS1=$PIHOLE_DNS_1" echo "DNS2=$PIHOLE_DNS_2" echo "USERCTL=no" }> "${IFCFG_FILE}" ip addr replace dev "${PIHOLE_INTERFACE}" "${IPV4_ADDRESS}" if command -v nmcli &> /dev/null;then # Tell NetworkManager to read our new sysconfig file nmcli con load "${IFCFG_FILE}" > /dev/null fi echo ":::" echo "::: Setting IP to ${IPV4_ADDRESS}. You may need to restart after the install is complete." echo ":::" fi else echo "::: Warning: Unable to locate configuration file to set static IPv4 address!" exit 1 fi } valid_ip() { local ip=${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) || \ { echo "::: Cancel selected. Exiting"; exit 1; } case ${DNSchoices} in Google) echo "::: Using Google DNS servers." PIHOLE_DNS_1="8.8.8.8" PIHOLE_DNS_2="8.8.4.4" ;; OpenDNS) echo "::: Using OpenDNS servers." PIHOLE_DNS_1="208.67.222.222" PIHOLE_DNS_2="208.67.220.220" ;; Level3) echo "::: Using Level3 servers." PIHOLE_DNS_1="4.2.2.1" PIHOLE_DNS_2="4.2.2.2" ;; Norton) echo "::: Using Norton ConnectSafe servers." PIHOLE_DNS_1="199.85.126.10" PIHOLE_DNS_2="199.85.127.10" ;; Comodo) echo "::: Using Comodo Secure servers." PIHOLE_DNS_1="8.26.56.26" PIHOLE_DNS_2="8.20.247.20" ;; Custom) until [[ ${DNSSettingsCorrect} = True ]]; do strInvalid="Invalid" if [ ! ${PIHOLE_DNS_1} ]; then if [ ! ${PIHOLE_DNS_2} ]; then prePopulate="" else prePopulate=", ${PIHOLE_DNS_2}" fi elif [ ${PIHOLE_DNS_1} ] && [ ! ${PIHOLE_DNS_2} ]; then prePopulate="${PIHOLE_DNS_1}" elif [ ${PIHOLE_DNS_1} ] && [ ${PIHOLE_DNS_2} ]; then prePopulate="${PIHOLE_DNS_1}, ${PIHOLE_DNS_2}" fi piholeDNS=$(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) || \ { echo "::: Cancel selected. Exiting"; exit 1; } PIHOLE_DNS_1=$(echo "${piholeDNS}" | sed 's/[, \t]\+/,/g' | awk -F, '{print$1}') PIHOLE_DNS_2=$(echo "${piholeDNS}" | sed 's/[, \t]\+/,/g' | awk -F, '{print$2}') if ! valid_ip "${PIHOLE_DNS_1}" || [ ! "${PIHOLE_DNS_1}" ]; then PIHOLE_DNS_1=${strInvalid} fi if ! valid_ip "${PIHOLE_DNS_2}" && [ "${PIHOLE_DNS_2}" ]; then PIHOLE_DNS_2=${strInvalid} fi if [[ ${PIHOLE_DNS_1} == "${strInvalid}" ]] || [[ ${PIHOLE_DNS_2} == "${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: $PIHOLE_DNS_1\n DNS Server 2: ${PIHOLE_DNS_2}" ${r} ${c} if [[ ${PIHOLE_DNS_1} == "${strInvalid}" ]]; then PIHOLE_DNS_1="" fi if [[ ${PIHOLE_DNS_2} == "${strInvalid}" ]]; then PIHOLE_DNS_2="" 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: $PIHOLE_DNS_1\n DNS Server 2: ${PIHOLE_DNS_2}" ${r} ${c}); then DNSSettingsCorrect=True else # If the settings are wrong, the loop continues DNSSettingsCorrect=False fi fi done ;; esac } setLogging() { local LogToggleCommand local LogChooseOptions local LogChoices LogToggleCommand=(whiptail --separate-output --radiolist "Do you want to log queries?\n (Disabling will render graphs on the Admin page useless):" ${r} ${c} 6) LogChooseOptions=("On (Recommended)" "" on Off "" off) LogChoices=$("${LogToggleCommand[@]}" "${LogChooseOptions[@]}" 2>&1 >/dev/tty) || (echo "::: Cancel selected. Exiting..." && exit 1) case ${LogChoices} in "On (Recommended)") echo "::: Logging On." QUERY_LOGGING=true ;; Off) echo "::: Logging Off." QUERY_LOGGING=false ;; esac } 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} ${dnsmasq_pihole_01_location} echo " done." sed -i "s/@INT@/$PIHOLE_INTERFACE/" ${dnsmasq_pihole_01_location} if [[ "${PIHOLE_DNS_1}" != "" ]]; then sed -i "s/@DNS1@/$PIHOLE_DNS_1/" ${dnsmasq_pihole_01_location} else sed -i '/^server=@DNS1@/d' ${dnsmasq_pihole_01_location} fi if [[ "${PIHOLE_DNS_2}" != "" ]]; then sed -i "s/@DNS2@/$PIHOLE_DNS_2/" ${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/' ${dnsmasq_conf} if [[ "${QUERY_LOGGING}" == false ]] ; then #Disable Logging sed -i 's/^log-queries/#log-queries/' ${dnsmasq_pihole_01_location} else #Enable Logging sed -i 's/^#log-queries/log-queries/' ${dnsmasq_pihole_01_location} fi } clean_existing() { # Clean an exiting installation to prepare for upgrade/reinstall # ${1} Directory to clean; ${2} Array of files to remove local clean_directory="${1}" local old_files=${2} for script in "${old_files[@]}"; do rm -f "${clean_directory}${script}.sh" done } installScripts() { # Install the scripts from repository to their various locations readonly install_dir="/opt/pihole/" echo ":::" echo -n "::: Installing scripts from ${PI_HOLE_LOCAL_REPO}..." # Clear out script files from Pi-hole scripts directory. clean_existing "${install_dir}" "${PI_HOLE_FILES}" # Install files from local core repository if is_repo "${PI_HOLE_LOCAL_REPO}"; then cd "${PI_HOLE_LOCAL_REPO}" install -o "${USER}" -Dm755 -d "${install_dir}" install -o "${USER}" -Dm755 -t "${install_dir}" gravity.sh install -o "${USER}" -Dm755 -t "${install_dir}" ./advanced/Scripts/*.sh install -o "${USER}" -Dm755 -t "${install_dir}" ./automated\ install/uninstall.sh install -o "${USER}" -Dm755 -t /usr/local/bin/ pihole install -Dm644 ./advanced/bash-completion/pihole /etc/bash_completion.d/pihole echo " done." else echo " *** ERROR: Local repo ${PI_HOLE_LOCAL_REPO} not found, exiting." exit 1 fi } installConfigs() { # Install the configs from /etc/.pihole to their various locations echo ":::" echo "::: Installing configs..." version_check_dnsmasq if [ ! -d "/etc/lighttpd" ]; then mkdir /etc/lighttpd chown "${USER}":root /etc/lighttpd elif [ -f "/etc/lighttpd/lighttpd.conf" ]; then 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 mkdir -p /var/cache/lighttpd/uploads chown ${LIGHTTPD_USER}:${LIGHTTPD_GROUP} /var/cache/lighttpd/uploads } stop_service() { # Stop service passed in as argument. # Can softfail, as process may not be installed when this is called echo ":::" echo -n "::: Stopping ${1} service..." if command -v systemctl &> /dev/null; then systemctl stop "${1}" &> /dev/null || true else service "${1}" stop &> /dev/null || 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 ${1} service..." if command -v systemctl &> /dev/null; then systemctl restart "${1}" &> /dev/null else service "${1}" restart &> /dev/null fi echo " done." } enable_service() { # Enable service so that it will start with next reboot echo ":::" echo -n "::: Enabling ${1} service to start on reboot..." if command -v systemctl &> /dev/null; then systemctl enable "${1}" &> /dev/null else update-rc.d "${1}" defaults &> /dev/null 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) #Update package cache on apt based OSes. Do this every time since #it's quick and packages can be updated at any time. echo ":::" echo -n "::: Updating local cache of available packages..." ${UPDATE_PKG_CACHE} &> /dev/null echo " done!" } 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 "${PKG_COUNT}") echo " done!" echo ":::" if [[ -d "/lib/modules/$(uname -r)" ]]; then if [[ ${updatesToInstall} -eq "0" ]]; then echo "::: Your system is up to date! Continuing with Pi-hole installation..." else echo "::: There are ${updatesToInstall} updates available for your system!" echo "::: We recommend you update your OS after installing Pi-Hole! " echo ":::" fi else echo "::: Kernel update detected, please reboot your system and try again if your installation fails." fi } install_dependent_packages() { # Install packages passed in via argument array # No spinner - conflicts with set -e declare -a argArray1=("${!1}") declare -a installArray # Debian based package install - debconf will download the entire package list # so we just create an array of packages not currently installed to cut down on the # amount of download traffic. # NOTE: We may be able to use this installArray in the future to create a list of package that were # installed by us, and remove only the installed packages, and not the entire list. if command -v debconf-apt-progress &> /dev/null; then for i in "${argArray1[@]}"; do echo -n "::: Checking for $i..." if dpkg-query -W -f='${Status}' "${i}" 2>/dev/null | grep "ok installed" &> /dev/null; then echo " installed!" else echo " added to install list!" installArray+=("${i}") fi done if [[ ${#installArray[@]} -gt 0 ]]; then debconf-apt-progress -- ${PKG_INSTALL} "${installArray[@]}" return fi return 0 fi #Fedora/CentOS for i in "${argArray1[@]}"; do echo -n "::: Checking for $i..." if ${PKG_MANAGER} -q list installed "${i}" &> /dev/null; then echo " installed!" else echo " added to install list!" installArray+=("${i}") fi done if [[ ${#installArray[@]} -gt 0 ]]; then ${PKG_INSTALL} "${installArray[@]}" &> /dev/null return fi return 0 } 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 "${DNSMASQ_USER}":root /var/log/pihole.log echo " done!" else echo " already exists!" fi } installPiholeWeb() { # Install the web interface echo ":::" echo "::: Installing pihole custom index page..." if [ -d "/var/www/html/pihole" ]; then if [ -f "/var/www/html/pihole/index.php" ]; then echo "::: Existing index.php detected, not overwriting" else echo -n "::: index.php missing, replacing... " cp /etc/.pihole/advanced/index.php /var/www/html/pihole/ echo " done!" fi if [ -f "/var/www/html/pihole/index.js" ]; then echo "::: Existing index.js detected, not overwriting" else echo -n "::: index.js missing, replacing... " cp /etc/.pihole/advanced/index.js /var/www/html/pihole/ echo " done!" fi if [ -f "/var/www/html/pihole/blockingpage.css" ]; then echo "::: Existing blockingpage.css detected, not overwriting" else echo -n "::: index.css missing, replacing... " cp /etc/.pihole/advanced/blockingpage.css /var/www/html/pihole echo " done!" fi else mkdir /var/www/html/pihole if [ -f /var/www/html/index.lighttpd.html ]; then mv /var/www/html/index.lighttpd.html /var/www/html/index.lighttpd.orig else printf "\n:::\tNo default index.lighttpd.html file found... not backing up" fi cp /etc/.pihole/advanced/index.* /var/www/html/pihole/. echo " done!" fi # Install Sudoer file echo ":::" echo -n "::: Installing sudoer file..." mkdir -p /etc/sudoers.d/ cp /etc/.pihole/advanced/pihole.sudo /etc/sudoers.d/pihole # Add lighttpd user (OS dependent) to sudoers file echo "${LIGHTTPD_USER} ALL=NOPASSWD: /usr/local/bin/pihole" >> /etc/sudoers.d/pihole if [[ "$LIGHTTPD_USER" == "lighttpd" ]]; then # Allow executing pihole via sudo with Fedora # Usually /usr/local/bin is not permitted as directory for sudoable programms echo "Defaults secure_path = /sbin:/bin:/usr/sbin:/usr/bin:/usr/local/bin" >> /etc/sudoers.d/pihole fi chmod 0440 /etc/sudoers.d/pihole echo " done!" } installCron() { # Install the cron job echo ":::" echo -n "::: Installing latest Cron script..." cp /etc/.pihole/advanced/pihole.cron /etc/cron.d/pihole echo " done!" } runGravity() { # Run gravity.sh to build blacklists echo ":::" echo "::: Preparing to run gravity.sh to refresh hosts..." if ls /etc/pihole/list* 1> /dev/null 2>&1; then echo "::: Cleaning up previous install (preserving whitelist/blacklist)" rm /etc/pihole/list.* fi # Test if /etc/pihole/adlists.default exists if [[ ! -e /etc/pihole/adlists.default ]]; then cp /etc/.pihole/adlists.default /etc/pihole/adlists.default fi echo "::: Running gravity.sh" { /opt/pihole/gravity.sh; } } create_pihole_user() { # Check if user pihole exists and create if not echo "::: Checking if user 'pihole' exists..." id -u pihole &> /dev/null && echo "::: User 'pihole' already exists" || (echo "::: User 'pihole' doesn't exist. Creating..." && useradd -r -s /usr/sbin/nologin pihole) } configureFirewall() { # Allow HTTP and DNS traffic if firewall-cmd --state &> /dev/null; then echo "::: Configuring FirewallD for httpd and dnsmasq.." firewall-cmd --permanent --add-port=80/tcp --add-port=53/tcp --add-port=53/udp firewall-cmd --reload # Check for proper kernel modules to prevent failure elif modinfo ip_tables &> /dev/null; then # If chain Policy is not ACCEPT or last Rule is not ACCEPT # then check and insert our Rules above the DROP/REJECT Rule. if iptables -S INPUT | head -n1 | grep -qv '^-P.*ACCEPT$' || iptables -S INPUT | tail -n1 | grep -qv '^-\(A\|P\).*ACCEPT$'; then # Check chain first, otherwise a new rule will duplicate old ones echo "::: Configuring iptables for httpd and dnsmasq.." iptables -C INPUT -p tcp -m tcp --dport 80 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p tcp -m tcp --dport 80 -j ACCEPT iptables -C INPUT -p tcp -m tcp --dport 53 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p tcp -m tcp --dport 53 -j ACCEPT iptables -C INPUT -p udp -m udp --dport 53 -j ACCEPT &> /dev/null || iptables -I INPUT 1 -p udp -m udp --dport 53 -j ACCEPT fi else echo "::: No active firewall detected.. skipping firewall configuration." fi } finalExports() { # Update variables in setupVars.conf file if [ -e "${setupVars}" ]; then sed -i.update.bak '/PIHOLE_INTERFACE/d;/IPV4_ADDRESS/d;/IPV6_ADDRESS/d;/PIHOLE_DNS_1/d;/PIHOLE_DNS_2/d;/QUERY_LOGGING/d;' "${setupVars}" fi { echo "PIHOLE_INTERFACE=${PIHOLE_INTERFACE}" echo "IPV4_ADDRESS=${IPV4_ADDRESS}" echo "IPV6_ADDRESS=${IPV6_ADDRESS}" echo "PIHOLE_DNS_1=${PIHOLE_DNS_1}" echo "PIHOLE_DNS_2=${PIHOLE_DNS_2}" echo "QUERY_LOGGING=${QUERY_LOGGING}" }>> "${setupVars}" # Look for DNS server settings which would have to be reapplied source "${setupVars}" source "/etc/.pihole/advanced/Scripts/webpage.sh" if [[ "${DNS_FQDN_REQUIRED}" != "" ]] ; then ProcessDNSSettings fi if [[ "${DHCP_ACTIVE}" != "" ]] ; then ProcessDHCPSettings fi } 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 installPiholeWeb installCron configureFirewall finalExports runGravity } accountForRefactor() { # At some point in the future this list can be pruned, for now we'll need it to ensure updates don't break. # Refactoring of install script has changed the name of a couple of variables. Sort them out here. sed -i 's/piholeInterface/PIHOLE_INTERFACE/g' ${setupVars} sed -i 's/IPv4_address/IPV4_ADDRESS/g' ${setupVars} sed -i 's/IPv4addr/IPV4_ADDRESS/g' ${setupVars} sed -i 's/IPv6_address/IPV6_ADDRESS/g' ${setupVars} sed -i 's/piholeIPv6/IPV6_ADDRESS/g' ${setupVars} sed -i 's/piholeDNS1/PIHOLE_DNS_1/g' ${setupVars} sed -i 's/piholeDNS2/PIHOLE_DNS_2/g' ${setupVars} } updatePihole() { accountForRefactor # Source ${setupVars} for use in the rest of the functions. . ${setupVars} # Install base files and web interface installScripts installConfigs CreateLogFile installPiholeWeb installCron configureFirewall finalExports #re-export setupVars.conf to account for any new vars added in new versions runGravity } checkSelinux() { if command -v getenforce &> /dev/null; then echo ":::" echo -n "::: SELinux Support Detected... Mode: " enforceMode=$(getenforce) echo "${enforceMode}" if [[ "${enforceMode}" == "Enforcing" ]]; then whiptail --title "SELinux Enforcing Detected" --yesno "SELinux is being Enforced on your system!\n\nPi-hole currently does not support SELinux, but you may still continue with the installation.\n\nNote: Admin UI Will not function fully without setting your policies correctly\n\nContinue installing Pi-hole?" ${r} ${c} || \ { echo ":::"; echo "::: Not continuing install after SELinux Enforcing detected."; exit 1; } echo ":::" echo "::: Continuing installation with SELinux Enforcing." echo "::: Please refer to official SELinux documentation to create a custom policy." fi 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: ${IPV6_ADDRESS:-"Not Configured"} If you set a new IP address, you should restart the Pi. The install log is in /etc/pihole. View the web interface at http://pi.hole/admin or http://${IPV4_ADDRESS%/*}/admin Your Admin Webpage login password is ${1:-"NOT SET"}" ${r} ${c} } update_dialogs() { # reconfigure if [ "${reconfigure}" = true ]; then opt1a="Repair" opt1b="This will retain existing settings" strAdd="You will remain on the same version" else opt1a="Update" opt1b="This will retain existing settings." strAdd="You will be updated to the latest version." fi opt2a="Reconfigure" opt2b="This will allow you to enter new settings" UpdateCmd=$(whiptail --title "Existing Install Detected!" --menu "\n\nWe have detected an existing install.\n\nPlease choose from the following options: \n($strAdd)" ${r} ${c} 2 \ "${opt1a}" "${opt1b}" \ "${opt2a}" "${opt2b}" 3>&2 2>&1 1>&3) || \ { echo "::: Cancel selected. Exiting"; exit 1; } case ${UpdateCmd} in ${opt1a}) echo "::: ${opt1a} option selected." useUpdateVars=true ;; ${opt2a}) echo "::: ${opt2a} option selected" useUpdateVars=false ;; esac } main() { ######## FIRST CHECK ######## # Must be root to install echo ":::" if [[ ${EUID} -eq 0 ]]; then echo "::: You are root." else echo "::: Script called with non-root privileges. The Pi-hole installs server packages and configures" echo "::: system networking, it requires elevated rights. Please check the contents of the script for" echo "::: any concerns with this requirement. Please be sure to download this script from a trusted source." echo ":::" echo "::: Detecting the presence of the sudo utility for continuation of this install..." if command -v sudo &> /dev/null; then echo "::: Utility sudo located." exec curl -sSL https://install.pi-hole.net | sudo bash "$@" exit $? else echo "::: sudo is needed for the Web interface to run pihole commands. Please run this script as root and it will be automatically installed." exit 1 fi fi # Check arguments for the undocumented flags for var in "$@"; do case "$var" in "--reconfigure" ) reconfigure=true;; "--i_do_not_follow_recommendations" ) skipSpaceCheck=false;; "--unattended" ) runUnattended=true;; esac done if [[ -f ${setupVars} ]]; then if [[ "${runUnattended}" == true ]]; then echo "::: --unattended passed to install script, no whiptail dialogs will be displayed" useUpdateVars=true else update_dialogs fi fi # Start the installer # Verify there is enough disk space for the install if [[ "${skipSpaceCheck}" == true ]]; then echo "::: --i_do_not_follow_recommendations passed to script, skipping free disk space verification!" else verifyFreeDiskSpace fi # Update package cache update_pacakge_cache # Notify user of package availability notify_package_updates_available # Install packages used by this installation script install_dependent_packages INSTALLER_DEPS[@] # Check if SELinux is Enforcing checkSelinux if [[ "${reconfigure}" == true ]]; then echo "::: --reconfigure passed to install script. Not downloading/updating local repos" else # Get Git files for Core and Admin getGitFiles ${PI_HOLE_LOCAL_REPO} ${piholeGitUrl} || \ { echo "!!! Unable to clone ${piholeGitUrl} into ${PI_HOLE_LOCAL_REPO}, unable to continue."; \ exit 1; \ } getGitFiles ${webInterfaceDir} ${webInterfaceGitUrl} || \ { echo "!!! Unable to clone ${webInterfaceGitUrl} into ${webInterfaceDir}, unable to continue."; \ exit 1; \ } fi if [[ ${useUpdateVars} == false ]]; then # Display welcome dialogs welcomeDialogs # Create directory for Pi-hole storage mkdir -p /etc/pihole/ # 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 # Decide what upstream DNS Servers to use setDNS # Let the user decide if they want to block ads over IPv4 and/or IPv6 use4andor6 # Let the user decide if they want query logging enabled... setLogging # Install packages used by the Pi-hole install_dependent_packages PIHOLE_DEPS[@] # Install and log everything to a file installPihole | tee ${tmpLog} else # update packages used by the Pi-hole install_dependent_packages PIHOLE_DEPS[@] updatePihole | tee ${tmpLog} fi # Move the log file into /etc/pihole for storage mv ${tmpLog} ${instalLogLoc} # Add password to web UI if there is none pw="" if [[ $(grep 'WEBPASSWORD' -c /etc/pihole/setupVars.conf) == 0 ]] ; then pw=$(tr -dc _A-Z-a-z-0-9 < /dev/urandom | head -c 8) pihole -a -p ${pw} fi if [[ "${useUpdateVars}" == false ]]; then displayFinalMessage ${pw} fi echo "::: Restarting services..." # Start services start_service dnsmasq enable_service dnsmasq start_service lighttpd enable_service lighttpd echo "::: done." echo ":::" if [[ "${useUpdateVars}" == false ]]; then echo "::: Installation Complete! Configure your devices to use the Pi-hole as their DNS server using:" echo "::: ${IPV4_ADDRESS%/*}" echo "::: ${IPV6_ADDRESS}" echo ":::" echo "::: If you set a new IP address, you should restart the Pi." echo "::: View the web interface at http://pi.hole/admin or http://${IPV4_ADDRESS%/*}/admin" else echo "::: Update complete!" fi if (( ${#pw} > 0 )) ; then echo ":::" echo "::: Note: As security measure a password has been installed for your web interface" echo "::: The currently set password is" echo "::: ${pw}" echo ":::" echo "::: You can always change it using" echo "::: pihole -a -p new_password" fi echo ":::" echo "::: The install log is located at: /etc/pihole/install.log" } if [[ "${PH_TEST}" != true ]] ; then main "$@" fi