mirror of
https://github.com/pi-hole/pi-hole.git
synced 2024-12-25 06:10:20 +00:00
616 lines
20 KiB
Bash
Executable file
616 lines
20 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Pi-hole: A black hole for Internet advertisements
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# (c) 2015, 2016 by Jacob Salmela
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# Network-wide ad blocking via your Raspberry Pi
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# http://pi-hole.net
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# Installs Pi-hole
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#
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# Pi-hole is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# (at your option) any later version.
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# pi-hole.net/donate
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#
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# Install with this command (from your Pi):
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#
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# curl -L install.pi-hole.net | bash
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######## VARIABLES #########
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tmpLog=/tmp/pihole-install.log
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instalLogLoc=/etc/pihole/install.log
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webInterfaceGitUrl="https://github.com/pi-hole/AdminLTE.git"
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webInterfaceDir="/var/www/html/admin"
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piholeGitUrl="https://github.com/pi-hole/pi-hole.git"
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piholeFilesDir="/etc/.pihole"
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# Find the rows and columns
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rows=$(tput lines)
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columns=$(tput cols)
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# Divide by two so the dialogs take up half of the screen, which looks nice.
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r=$(( rows / 2 ))
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c=$(( columns / 2 ))
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# Find IP used to route to outside world
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IPv4dev=$(ip route get 8.8.8.8 | awk '{for(i=1;i<=NF;i++)if($i~/dev/)print $(i+1)}')
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IPv4addr=$(ip -o -f inet addr show dev $IPv4dev | awk '{print $4}' | awk 'END {print}')
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IPv4gw=$(ip route get 8.8.8.8 | awk '{print $3}')
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availableInterfaces=$(ip -o link | awk '{print $2}' | grep -v "lo" | cut -d':' -f1)
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dhcpcdFile=/etc/dhcpcd.conf
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######## FIRST CHECK ########
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# Must be root to install
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echo ":::"
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if [[ $EUID -eq 0 ]];then
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echo "::: You are root."
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else
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echo "::: sudo will be used for the install."
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# Check if it is actually installed
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# If it isn't, exit because the install cannot complete
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if [[ $(dpkg-query -s sudo) ]];then
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export SUDO="sudo"
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else
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echo "::: Please install sudo or run this as root."
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exit 1
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fi
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fi
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if [ -d "/etc/pihole" ]; then
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# Likely an existing install
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upgrade=true
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else
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upgrade=false
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fi
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####### FUNCTIONS ##########
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###All credit for the below function goes to http://fitnr.com/showing-a-bash-spinner.html
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spinner() {
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local pid=$1
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spin='-\|/'
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i=0
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while $SUDO kill -0 $pid 2>/dev/null
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do
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i=$(( (i+1) %4 ))
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printf "\b${spin:$i:1}"
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sleep .1
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done
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printf "\b"
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}
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backupLegacyPihole() {
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# This function detects and backups the pi-hole v1 files. It will not do anything to the current version files.
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if [[ -f /etc/dnsmasq.d/adList.conf ]];then
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echo "::: Original Pi-hole detected. Initiating sub space transport"
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$SUDO mkdir -p /etc/pihole/original/
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$SUDO mv /etc/dnsmasq.d/adList.conf /etc/pihole/original/adList.conf.$(date "+%Y-%m-%d")
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$SUDO mv /etc/dnsmasq.conf /etc/pihole/original/dnsmasq.conf.$(date "+%Y-%m-%d")
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$SUDO mv /etc/resolv.conf /etc/pihole/original/resolv.conf.$(date "+%Y-%m-%d")
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$SUDO mv /etc/lighttpd/lighttpd.conf /etc/pihole/original/lighttpd.conf.$(date "+%Y-%m-%d")
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$SUDO mv /var/www/pihole/index.html /etc/pihole/original/index.html.$(date "+%Y-%m-%d")
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$SUDO mv /usr/local/bin/gravity.sh /etc/pihole/original/gravity.sh.$(date "+%Y-%m-%d")
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else
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:
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fi
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}
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welcomeDialogs() {
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# Display the welcome dialog
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whiptail --msgbox --backtitle "Welcome" --title "Pi-hole automated installer" "This installer will transform your Raspberry Pi into a network-wide ad blocker!" $r $c
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# Support for a part-time dev
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whiptail --msgbox --backtitle "Plea" --title "Free and open source" "The Pi-hole is free, but powered by your donations: http://pi-hole.net/donate" $r $c
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# Explain the need for a static address
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whiptail --msgbox --backtitle "Initating network interface" --title "Static IP Needed" "The Pi-hole is a SERVER so it needs a STATIC IP ADDRESS to function properly.
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In the next section, you can choose to use your current network settings (DHCP) or to manually edit them." $r $c
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}
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verifyFreeDiskSpace() {
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# 25MB is the minimum space needed (20MB install + 5MB one day of logs.)
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requiredFreeBytes=25600
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existingFreeBytes=`df -lkP / | awk '{print $4}' | tail -1`
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if [[ $existingFreeBytes -lt $requiredFreeBytes ]]; then
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whiptail --msgbox --backtitle "Insufficient Disk Space" --title "Insufficient Disk Space" "\nYour system appears to be low on disk space. pi-hole recomends a minimum of $requiredFreeBytes Bytes.\nYou only have $existingFreeBytes Free.\n\nIf this is a new install you may need to expand your disk.\n\nTry running:\n 'sudo raspi-config'\nChoose the 'expand file system option'\n\nAfter rebooting, run this installation again.\n\ncurl -L install.pi-hole.net | bash\n" $r $c
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exit 1
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fi
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}
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chooseInterface() {
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# Turn the available interfaces into an array so it can be used with a whiptail dialog
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interfacesArray=()
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firstloop=1
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while read -r line
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do
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mode="OFF"
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if [[ $firstloop -eq 1 ]]; then
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firstloop=0
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mode="ON"
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fi
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interfacesArray+=("$line" "available" "$mode")
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done <<< "$availableInterfaces"
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# Find out how many interfaces are available to choose from
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interfaceCount=$(echo "$availableInterfaces" | wc -l)
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chooseInterfaceCmd=(whiptail --separate-output --radiolist "Choose An Interface" $r $c $interfaceCount)
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chooseInterfaceOptions=$("${chooseInterfaceCmd[@]}" "${interfacesArray[@]}" 2>&1 >/dev/tty)
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if [[ $? = 0 ]];then
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for desiredInterface in $chooseInterfaceOptions
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do
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piholeInterface=$desiredInterface
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echo "::: Using interface: $piholeInterface"
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echo ${piholeInterface} > /tmp/piholeINT
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done
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else
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echo "::: Cancel selected, exiting...."
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exit 1
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fi
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}
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cleanupIPv6() {
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# Removes IPv6 indicator file if we are not using IPv6
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if [ -f "/etc/pihole/.useIPv6" ] && [ ! $useIPv6 ]; then
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rm /etc/pihole/.useIPv6
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fi
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}
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use4andor6() {
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# Let use select IPv4 and/or IPv6
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cmd=(whiptail --separate-output --checklist "Select Protocols" $r $c 2)
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options=(IPv4 "Block ads over IPv4" on
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IPv6 "Block ads over IPv6" off)
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choices=$("${cmd[@]}" "${options[@]}" 2>&1 >/dev/tty)
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if [[ $? = 0 ]];then
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for choice in $choices
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do
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case $choice in
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IPv4 ) useIPv4=true;;
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IPv6 ) useIPv6=true;;
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esac
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done
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if [ $useIPv4 ] && [ ! $useIPv6 ]; then
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getStaticIPv4Settings
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setStaticIPv4
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echo "::: Using IPv4 on $IPv4addr"
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echo "::: IPv6 will NOT be used."
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fi
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if [ ! $useIPv4 ] && [ $useIPv6 ]; then
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useIPv6dialog
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echo "::: IPv4 will NOT be used."
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echo "::: Using IPv6 on $piholeIPv6"
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fi
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if [ $useIPv4 ] && [ $useIPv6 ]; then
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getStaticIPv4Settings
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setStaticIPv4
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useIPv6dialog
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echo "::: Using IPv4 on $IPv4addr"
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echo "::: Using IPv6 on $piholeIPv6"
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fi
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if [ ! $useIPv4 ] && [ ! $useIPv6 ]; then
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echo "::: Cannot continue, neither IPv4 or IPv6 selected"
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echo "::: Exiting"
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exit 1
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fi
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cleanupIPv6
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else
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echo "::: Cancel selected. Exiting..."
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exit 1
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fi
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}
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useIPv6dialog() {
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# Show the IPv6 address used for blocking
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piholeIPv6=$(ip -6 route get 2001:4860:4860::8888 | awk -F " " '{ for(i=1;i<=NF;i++) if ($i == "src") print $(i+1) }')
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whiptail --msgbox --backtitle "IPv6..." --title "IPv6 Supported" "$piholeIPv6 will be used to block ads." $r $c
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$SUDO touch /etc/pihole/.useIPv6
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}
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getStaticIPv4Settings() {
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# Ask if the user wants to use DHCP settings as their static IP
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if (whiptail --backtitle "Calibrating network interface" --title "Static IP Address" --yesno "Do you want to use your current network settings as a static address?
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IP address: $IPv4addr
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Gateway: $IPv4gw" $r $c) then
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# If they choose yes, let the user know that the IP address will not be available via DHCP and may cause a conflict.
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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.
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If you are worried, either manually set the address, or modify the DHCP reservation pool so it does not include the IP you want.
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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
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# Nothing else to do since the variables are already set above
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else
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# Otherwise, we need to ask the user to input their desired settings.
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# Start by getting the IPv4 address (pre-filling it with info gathered from DHCP)
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# Start a loop to let the user enter their information with the chance to go back and edit it if necessary
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until [[ $ipSettingsCorrect = True ]]
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do
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# Ask for the IPv4 address
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IPv4addr=$(whiptail --backtitle "Calibrating network interface" --title "IPv4 address" --inputbox "Enter your desired IPv4 address" $r $c $IPv4addr 3>&1 1>&2 2>&3)
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if [[ $? = 0 ]];then
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echo "::: Your static IPv4 address: $IPv4addr"
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# Ask for the gateway
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IPv4gw=$(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)
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if [[ $? = 0 ]];then
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echo "::: Your static IPv4 gateway: $IPv4gw"
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# Give the user a chance to review their settings before moving on
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if (whiptail --backtitle "Calibrating network interface" --title "Static IP Address" --yesno "Are these settings correct?
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IP address: $IPv4addr
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Gateway: $IPv4gw" $r $c)then
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# If the settings are correct, then we need to set the piholeIP
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# Saving it to a temporary file us to retrieve it later when we run the gravity.sh script
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echo ${IPv4addr%/*} > /tmp/piholeIP
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echo $piholeInterface > /tmp/piholeINT
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# After that's done, the loop ends and we move on
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ipSettingsCorrect=True
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else
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# If the settings are wrong, the loop continues
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ipSettingsCorrect=False
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fi
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else
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# Cancelling gateway settings window
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ipSettingsCorrect=False
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echo "::: Cancel selected. Exiting..."
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exit 1
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fi
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else
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# Cancelling IPv4 settings window
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ipSettingsCorrect=False
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echo "::: Cancel selected. Exiting..."
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exit 1
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fi
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done
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# End the if statement for DHCP vs. static
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fi
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}
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setDHCPCD() {
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# Append these lines to dhcpcd.conf to enable a static IP
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echo "::: interface $piholeInterface
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static ip_address=$IPv4addr
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static routers=$IPv4gw
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static domain_name_servers=$IPv4gw" | $SUDO tee -a $dhcpcdFile >/dev/null
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}
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setStaticIPv4() {
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# Tries to set the IPv4 address
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if grep -q $IPv4addr $dhcpcdFile; then
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# address already set, noop
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:
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else
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setDHCPCD
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$SUDO ip addr replace dev $piholeInterface $IPv4addr
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echo ":::"
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echo "::: Setting IP to $IPv4addr. You may need to restart after the install is complete."
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echo ":::"
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fi
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}
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setDNS(){
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DNSChoseCmd=(whiptail --separate-output --radiolist "Select Upstream DNS Provider" $r $c 2)
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DNSChooseOptions=(Google "" on
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OpenDNS "" off)
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DNSchoices=$("${DNSChoseCmd[@]}" "${DNSChooseOptions[@]}" 2>&1 >/dev/tty)
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if [[ $? = 0 ]];then
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case $DNSchoices in
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Google)
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echo "::: Using Google DNS servers."
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piholeDNS1="8.8.8.8"
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piholeDNS2="8.8.4.4"
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;;
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OpenDNS)
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echo "::: Using OpenDNS servers."
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piholeDNS1="208.67.222.222"
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piholeDNS2="208.67.220.220"
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;;
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esac
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else
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echo "::: Cancel selected. Exiting..."
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exit 1
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fi
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}
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versionCheckDNSmasq(){
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# Check if /etc/dnsmasq.conf is from pihole. If so replace with an original and install new in .d directory
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dnsFile1="/etc/dnsmasq.conf"
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dnsFile2="/etc/dnsmasq.conf.orig"
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dnsSearch="addn-hosts=/etc/pihole/gravity.list"
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defaultFile="/etc/.pihole/advanced/dnsmasq.conf.original"
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newFileToInstall="/etc/.pihole/advanced/01-pihole.conf"
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newFileFinalLocation="/etc/dnsmasq.d/01-pihole.conf"
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if [ -f $dnsFile1 ]; then
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echo -n "::: Existing dnsmasq.conf found..."
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if grep -q $dnsSearch $dnsFile1; then
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echo " it is from a previous pi-hole install."
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echo -n "::: Backing up dnsmasq.conf to dnsmasq.conf.orig..."
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$SUDO mv -f $dnsFile1 $dnsFile2
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echo " done."
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echo -n "::: Restoring default dnsmasq.conf..."
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$SUDO cp $defaultFile $dnsFile1
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echo " done."
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else
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echo " it is not a pi-hole file, leaving alone!"
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fi
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else
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echo -n "::: No dnsmasq.conf found.. restoring default dnsmasq.conf..."
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$SUDO cp $defaultFile $dnsFile1
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echo " done."
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fi
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echo -n "::: Copying 01-pihole.conf to /etc/dnsmasq.d/01-pihole.conf..."
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$SUDO cp $newFileToInstall $newFileFinalLocation
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echo " done."
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$SUDO sed -i "s/@INT@/$piholeInterface/" $newFileFinalLocation
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$SUDO sed -i "s/@DNS1@/$piholeDNS1/" $newFileFinalLocation
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$SUDO sed -i "s/@DNS2@/$piholeDNS2/" $newFileFinalLocation
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}
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installScripts() {
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# Install the scripts from /etc/.pihole to their various locations
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$SUDO echo ":::"
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$SUDO echo -n "::: Installing scripts..."
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$SUDO cp /etc/.pihole/gravity.sh /usr/local/bin/gravity.sh
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$SUDO cp /etc/.pihole/advanced/Scripts/chronometer.sh /usr/local/bin/chronometer.sh
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$SUDO cp /etc/.pihole/advanced/Scripts/whitelist.sh /usr/local/bin/whitelist.sh
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$SUDO cp /etc/.pihole/advanced/Scripts/blacklist.sh /usr/local/bin/blacklist.sh
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$SUDO cp /etc/.pihole/advanced/Scripts/piholeLogFlush.sh /usr/local/bin/piholeLogFlush.sh
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$SUDO cp /etc/.pihole/advanced/Scripts/updateDashboard.sh /usr/local/bin/updateDashboard.sh
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$SUDO chmod 755 /usr/local/bin/{gravity,chronometer,whitelist,blacklist,piholeLogFlush,updateDashboard}.sh
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$SUDO echo " done."
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}
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installConfigs() {
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# Install the configs from /etc/.pihole to their various locations
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$SUDO echo ":::"
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$SUDO echo "::: Installing configs..."
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versionCheckDNSmasq
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$SUDO mv /etc/lighttpd/lighttpd.conf /etc/lighttpd/lighttpd.conf.orig
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$SUDO cp /etc/.pihole/advanced/lighttpd.conf /etc/lighttpd/lighttpd.conf
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}
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stopServices() {
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# Stop dnsmasq and lighttpd
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$SUDO echo ":::"
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$SUDO echo -n "::: Stopping services..."
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$SUDO service dnsmasq stop & spinner $! || true
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$SUDO service lighttpd stop & spinner $! || true
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$SUDO echo " done."
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}
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checkForDependencies() {
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#Running apt-get update/upgrade with minimal output can cause some issues with
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#requiring user input (e.g password for phpmyadmin see #218)
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#We'll change the logic up here, to check to see if there are any updates availible and
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# if so, advise the user to run apt-get update/upgrade at their own discretion
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#Check to see if apt-get update has already been run today
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# it needs to have been run at least once on new installs!
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timestamp=$(stat -c %Y /var/cache/apt/)
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timestampAsDate=$(date -d @$timestamp "+%b %e")
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today=$(date "+%b %e")
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if [ ! "$today" == "$timestampAsDate" ]; then
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#update package lists
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echo ":::"
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echo -n "::: apt-get update has not been run today. Running now..."
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$SUDO apt-get -qq update & spinner $!
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echo " done!"
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fi
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echo ":::"
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echo -n "::: Checking apt-get for upgraded packages...."
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updatesToInstall=$($SUDO apt-get -s -o Debug::NoLocking=true upgrade | grep -c ^Inst)
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echo " done!"
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echo ":::"
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if [[ $updatesToInstall -eq "0" ]]; then
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echo "::: Your pi is up to date! Continuing with pi-hole installation..."
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else
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echo "::: There are $updatesToInstall updates availible for your pi!"
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echo "::: We recommend you run 'sudo apt-get upgrade' after installing Pi-Hole! "
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echo ":::"
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fi
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echo ":::"
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echo "::: Checking dependencies:"
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dependencies=( dnsutils bc toilet figlet dnsmasq lighttpd php5-common php5-cgi php5 git curl unzip wget )
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for i in "${dependencies[@]}"
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do
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:
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echo -n "::: Checking for $i..."
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if [ $(dpkg-query -W -f='${Status}' $i 2>/dev/null | grep -c "ok installed") -eq 0 ]; then
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echo -n " Not found! Installing...."
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$SUDO apt-get -y -qq install $i > /dev/null & spinner $!
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echo " done!"
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else
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echo " already installed!"
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fi
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|
done
|
|
}
|
|
|
|
getGitFiles() {
|
|
# Setup git repos for base files and web admin
|
|
echo ":::"
|
|
echo "::: Checking for existing base files..."
|
|
if is_repo $piholeFilesDir; then
|
|
make_repo $piholeFilesDir $piholeGitUrl
|
|
else
|
|
update_repo $piholeFilesDir
|
|
fi
|
|
|
|
echo ":::"
|
|
echo "::: Checking for existing web interface..."
|
|
if is_repo $webInterfaceDir; then
|
|
make_repo $webInterfaceDir $webInterfaceGitUrl
|
|
else
|
|
update_repo $webInterfaceDir
|
|
fi
|
|
}
|
|
|
|
is_repo() {
|
|
# If the directory does not have a .git folder it is not a repo
|
|
echo -n "::: Checking $1 is a repo..."
|
|
if [ -d "$1/.git" ]; then
|
|
echo " OK!"
|
|
return 1
|
|
fi
|
|
echo " not found!!"
|
|
return 0
|
|
}
|
|
|
|
make_repo() {
|
|
# Remove the non-repod interface and clone the interface
|
|
echo -n "::: Cloning $2 into $1..."
|
|
$SUDO rm -rf $1
|
|
$SUDO git clone -q "$2" "$1" > /dev/null & spinner $!
|
|
echo " done!"
|
|
}
|
|
|
|
update_repo() {
|
|
# Pull the latest commits
|
|
echo -n "::: Updating repo in $1..."
|
|
cd "$1"
|
|
$SUDO git pull -q > /dev/null & spinner $!
|
|
echo " done!"
|
|
}
|
|
|
|
|
|
CreateLogFile() {
|
|
# Create logfiles if necessary
|
|
echo ":::"
|
|
$SUDO echo -n "::: Creating log file and changing owner to dnsmasq..."
|
|
if [ ! -f /var/log/pihole.log ]; then
|
|
$SUDO touch /var/log/pihole.log
|
|
$SUDO chmod 644 /var/log/pihole.log
|
|
$SUDO chown dnsmasq:root /var/log/pihole.log
|
|
$SUDO echo " done!"
|
|
else
|
|
$SUDO echo " already exists!"
|
|
fi
|
|
}
|
|
|
|
installPiholeWeb() {
|
|
# Install the web interface
|
|
$SUDO echo ":::"
|
|
$SUDO echo -n "::: Installing pihole custom index page..."
|
|
if [ -d "/var/www/html/pihole" ]; then
|
|
$SUDO echo " Existing page detected, not overwriting"
|
|
else
|
|
$SUDO mkdir /var/www/html/pihole
|
|
$SUDO mv /var/www/html/index.lighttpd.html /var/www/html/index.lighttpd.orig
|
|
$SUDO cp /etc/.pihole/advanced/index.html /var/www/html/pihole/index.html
|
|
$SUDO echo " done!"
|
|
fi
|
|
}
|
|
|
|
installCron() {
|
|
# Install the cron job
|
|
$SUDO echo ":::"
|
|
$SUDO echo -n "::: Installing latest Cron script..."
|
|
$SUDO cp /etc/.pihole/advanced/pihole.cron /etc/cron.d/pihole
|
|
$SUDO echo " done!"
|
|
}
|
|
|
|
runGravity() {
|
|
# Rub gravity.sh to build blacklists
|
|
$SUDO echo ":::"
|
|
$SUDO 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)"
|
|
$SUDO rm /etc/pihole/list.*
|
|
fi
|
|
#Don't run as SUDO, this was causing issues
|
|
echo "::: Running gravity.sh"
|
|
echo ":::"
|
|
|
|
/usr/local/bin/gravity.sh
|
|
}
|
|
|
|
|
|
installPihole() {
|
|
# Install base files and web interface
|
|
checkForDependencies # done
|
|
stopServices
|
|
$SUDO mkdir -p /etc/pihole/
|
|
$SUDO chown www-data:www-data /var/www/html
|
|
$SUDO chmod 775 /var/www/html
|
|
$SUDO usermod -a -G www-data pi
|
|
$SUDO lighty-enable-mod fastcgi fastcgi-php > /dev/null
|
|
|
|
getGitFiles
|
|
installScripts
|
|
installConfigs
|
|
#installWebAdmin
|
|
CreateLogFile
|
|
installPiholeWeb
|
|
installCron
|
|
runGravity
|
|
}
|
|
|
|
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:
|
|
|
|
$IPv4addr
|
|
$piholeIPv6
|
|
|
|
If you set a new IP address, you should restart the Pi.
|
|
|
|
The install log is in /etc/pihole." $r $c
|
|
}
|
|
|
|
######## SCRIPT ############
|
|
# Start the installer
|
|
$SUDO mkdir -p /etc/pihole/
|
|
welcomeDialogs
|
|
|
|
# Verify there is enough disk space for the install
|
|
verifyFreeDiskSpace
|
|
|
|
# Just back up the original Pi-hole right away since it won't take long and it gets it out of the way
|
|
backupLegacyPihole
|
|
# 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
|
|
|
|
# Move the log file into /etc/pihole for storage
|
|
$SUDO mv $tmpLog $instalLogLoc
|
|
|
|
displayFinalMessage
|
|
|
|
echo -n "::: Restarting services..."
|
|
# Start services
|
|
$SUDO service dnsmasq start
|
|
$SUDO service lighttpd start
|
|
echo " done."
|
|
|
|
echo ":::"
|
|
echo "::: Installation Complete! Configure your devices to use the Pi-hole as their DNS server using:"
|
|
echo "::: $IPv4addr"
|
|
echo "::: $piholeIPv6"
|
|
echo ":::"
|
|
echo "::: If you set a new IP address, you should restart the Pi."
|
|
echo "::: "
|
|
echo "::: The install log is located at: /etc/pihole/install.log"
|
|
|