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external file for pihole variables
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jacobsalmela
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121
advanced/pihole.vars
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121
advanced/pihole.vars
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#!/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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# Exports variables for use with 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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# First check if the user running the script is root.
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# If they are, they have root access and the SUDO variable will be set to nothing
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if [[ $EUID -eq 0 ]];then
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echo "You are root."
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else
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# sudo will be used during install and to restart services in gravity.sh
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export SUDO="sudo"
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fi
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# Find the rows and columns
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rows=$(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 $3}')
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# System files
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export dnsmsqConfDir=/etc/dnsmasq.d
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export lighttpConfDir=/etc/lighttpd
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export cronFolder=/etc/cron.d
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export dhcpcdFile=/etc/dhcpcd.conf
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export dnsmasqConfigFile=$dnsmsqConfDir/01-pihole.conf
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export lighttpdConfigFile=$lighttpConfDir/lighttpd.conf
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export webRootDir=/var/www/html
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export webRootPiholeDir=$webRootDir/pihole
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export webRootAdminDir=$webRootDir/admin
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export piholeIndexHtmlFile=$webRootPiholeDir/index.html
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export adminIndexPhpFile=$webRootAdminDir/index.php
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export logDir=/var/log
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export webAccessLog=$logDir/lighttpd/access.log
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export webErrorLog=$logDir/lighttpd/error.log
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export piholeLog=$logDir/pihole.log
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# Local Pi-hole directory
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export basename=pihole
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export piholeDir=/usr/local/etc/$basename
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export piholeGitDir=/usr/local/etc/.$basename
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# Scripts
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export scriptDir=/usr/local/bin
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export gravityScript=$scriptDir/gravity.sh
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export chronometerScript=$scriptDir/chronometer.sh
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export piholeLogFlushScript=$scriptDir/piholeLogFlush.sh
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export blacklistScript=$scriptDir/blacklist.sh
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export whitelistScript=$scriptDir/whitelist.sh
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export piholeCron=$cronFolder/pihole
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# Variables for various stages of downloading and formatting the list
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export tmpLocation=/tmp
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export adListFile=$piholeDir/adlists.list
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export adListDefault=$piholeDir/gravity.list
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export blacklist=$piholeDir/blacklist.txt
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export whitelist=$piholeDir/whitelist.txt
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export latentWhitelist=$piholeDir/latentWhitelist.txt
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export justDomainsExtension=domains
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export matter=$basename.0.matterandlight.txt
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export supernova=$basename.1.supernova.txt
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export eventHorizon=$basename.2.eventHorizon.txt
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export accretionDisc=$basename.3.accretionDisc.txt
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export tmpInstallLog=$tmpLocation/pihole-install.log
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export instalLogLoc=$piholeDir/install.log
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# These files are empty but checked for existence
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export piholeInterfaceFile=$tmpLocation/.piholeInterface
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export piholeIPv4static=$tmpLocation/.useIPv4
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export piholeIPv4file=$piholeDir/.useIPv4
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export piholeIPv6file=$piholeDir/.useIPv6
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# This is checked during the initial install
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if [[ -f $piholeIPv4static ]];then
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# If the tmp file exists, it means it was created from the installation script and we should use that value instead of detecting it in this script
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# This is because the installer asks to set a static IP address
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# The file can be removed because once the address is set, it won't change
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# But then make an invisible file to be contigious with IPv6
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export piholeIPv4=$(cat $piholeIPv4static)
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rm -f $piholeIPv4static
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$SUDO touch $piholeIPv4file
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else
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# Otherwise, the IP address can be taken directly from the machine, which will happen when the script is run by the user and not the installation script
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export IPv4dev=$(ip route get 8.8.8.8 | awk '{for(i=1;i<=NF;i++)if($i~/dev/)print $(i+1)}')
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export piholeIPv4CIDR=$(ip -o -f inet addr show dev $IPv4dev | awk '{print $4}' | awk 'END {print}')
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export piholeIPv4=${piholeIPv4CIDR%/*}
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fi
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if [[ -f $piholeIPv6file ]];then
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# If the file exists, then the user previously chose to use IPv6 in the automated installer
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export piholeIPv6=$(ip -6 route get 2001:4860:4860::8888 | awk -F " " '{ for(i=1;i<=NF;i++) if ($i == "src") print $(i+1) }')
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fi
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# This is used in more than one script, so just make it a function so we don't repeat code
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reloadHostsFile(){
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dnsmasqPid=$(pidof dnsmasq)
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if [[ $dnsmasqPid ]]; then
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# The service already running - reload config
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$SUDO kill -HUP $dnsmasqPid
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else
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# The service is not running so start it up
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$SUDO service dnsmasq start
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fi
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}
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echo "Variables have been sourced."
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