#!/usr/bin/env bash # http://pi-hole.net # Compiles a list of ad-serving domains by downloading them from multiple sources piholeIPfile=/tmp/piholeIP if [[ -f $piholeIPfile ]];then # If the file exists, it means it was exported from the installation script and we should use that value instead of detecting it in this script piholeIP=$(cat $piholeIPfile) rm $piholeIPfile else # Otherwise, the IP address can be taken directly from the machine, which will happen when the script is run by the user and not the installation script IPv4dev=$(ip route get 8.8.8.8 | awk '{print $5}') piholeIPCIDR=$(ip -o -f inet addr show dev $IPv4dev | awk '{print $4}') piholeIP=${piholeIPCIDR%/*} fi # Ad-list sources--one per line in single quotes # The mahakala source is commented out due to many users having issues with it blocking legitimate domains. Uncomment at your own risk sources=('https://adaway.org/hosts.txt' 'http://adblock.gjtech.net/?format=unix-hosts' #'http://adblock.mahakala.is/' 'http://hosts-file.net/ad_servers.txt' 'http://www.malwaredomainlist.com/hostslist/hosts.txt' 'http://pgl.yoyo.org/adservers/serverlist.php?' 'http://someonewhocares.org/hosts/hosts' 'http://winhelp2002.mvps.org/hosts.txt') # Variables for various stages of downloading and formatting the list adList=/etc/pihole/gravity.list origin=/etc/pihole piholeDir=/etc/pihole justDomainsExtension=domains matter=pihole.0.matter.txt andLight=pihole.1.andLight.txt supernova=pihole.2.supernova.txt eventHorizon=pihole.3.eventHorizon.txt accretionDisc=pihole.4.accretionDisc.txt eyeOfTheNeedle=pihole.5.wormhole.txt blacklist=$piholeDir/blacklist.txt whitelist=$piholeDir/whitelist.txt latentWhitelist=$origin/latentWhitelist.txt # After setting defaults, check if there's local overrides if [[ -r $piholeDir/pihole.conf ]];then echo "** Local calibration requested..." . $piholeDir/pihole.conf fi echo "** Neutrino emissions detected..." # Create the pihole resource directory if it doesn't exist. Future files will be stored here if [[ -d $piholeDir ]];then : else echo "** Creating pihole directory..." sudo mkdir $piholeDir fi # Loop through domain list. Download each one and remove commented lines (lines beginning with '# 'or '/') and blank lines for ((i = 0; i < "${#sources[@]}"; i++)) do url=${sources[$i]} # Get just the domain from the URL domain=$(echo "$url" | cut -d'/' -f3) # Save the file as list.#.domain saveLocation=$origin/list.$i.$domain.$justDomainsExtension agent="Mozilla/10.0" echo -n "Getting $domain list... " # Use a case statement to download lists that need special cURL commands # to complete properly and reset the user agent when required case "$domain" in "adblock.mahakala.is") agent='Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0' cmd="curl -e http://forum.xda-developers.com/" ;; "pgl.yoyo.org") cmd="curl -d mimetype=plaintext -d hostformat=hosts" ;; # Default is a simple curl request *) cmd="curl" esac # tmp file, so we don't have to store the (long!) lists in RAM patternBuffer=$(mktemp) heisenbergCompensator="" if [[ -r $saveLocation ]]; then heisenbergCompensator="-z $saveLocation" fi CMD="$cmd -s $heisenbergCompensator -A '$agent' $url > $patternBuffer" $cmd -s $heisenbergCompensator -A "$agent" $url > $patternBuffer if [[ -s "$patternBuffer" ]];then # Remove comments and print only the domain name # Most of the lists downloaded are already in hosts file format but the spacing/formating is not contigious # This helps with that and makes it easier to read # It also helps with debugging so each stage of the script can be researched more in depth awk '($1 !~ /^#/) { if (NF>1) {print $2} else {print $1}}' $patternBuffer | \ sed -nr -e 's/\.{2,}/./g' -e '/\./p' > $saveLocation echo "Done." else echo "Skipping pattern because transporter logic detected no changes..." fi # Cleanup rm -f $patternBuffer done # Find all files with the .domains extension and compile them into one file and remove CRs echo "** Aggregating list of domains..." find $origin/ -type f -name "*.$justDomainsExtension" -exec cat {} \; | tr -d '\r' > $origin/$matter # Append blacklist entries if they exist if [[ -r $blacklist ]];then numberOf=$(cat $blacklist | sed '/^\s*$/d' | wc -l) echo "** Blacklisting $numberOf domain(s)..." cat $blacklist >> $origin/$matter fi ########################### function gravity_advanced() { numberOf=$(wc -l < $origin/$andLight) echo "** $numberOf domains being pulled in by gravity..." # Remove carriage returns and preceding whitespace # not really needed anymore? cp $origin/$andLight $origin/$supernova # Sort and remove duplicates sort -u $origin/$supernova > $origin/$eventHorizon numberOf=$(wc -l < $origin/$eventHorizon) echo "** $numberOf unique domains trapped in the event horizon." # Format domain list as "192.168.x.x domain.com" echo "** Formatting domains into a HOSTS file..." cat $origin/$eventHorizon | awk '{sub(/\r$/,""); print "'"$piholeIP"' " $0}' > $origin/$accretionDisc # Copy the file over as /etc/pihole/gravity.list so dnsmasq can use it sudo cp $origin/$accretionDisc $adList kill -HUP $(pidof dnsmasq) } # Whitelist (if applicable) then remove duplicates and format for dnsmasq if [[ -r $whitelist ]];then # Remove whitelist entries numberOf=$(cat $whitelist | sed '/^\s*$/d' | wc -l) plural=; [[ "$numberOf" != "1" ]] && plural=s echo "** Whitelisting $numberOf domain${plural}..." # Append a "$" to the end, prepend a "^" to the beginning, and # replace "." with "\." of each line to turn each entry into a # regexp so it can be parsed out with grep -x awk -F '[# \t]' 'NF>0&&$1!="" {print "^"$1"$"}' $whitelist | sed 's/\./\\./g' > $latentWhitelist else rm $latentWhitelist fi # Prevent our sources from being pulled into the hole plural=; [[ "${#sources[@]}" != "1" ]] && plural=s echo "** Whitelisting ${#sources[@]} ad list source${plural}..." for url in ${sources[@]} do echo "$url" | awk -F '/' '{print "^"$3"$"}' | sed 's/\./\\./g' >> $latentWhitelist done # Remove whitelist entries from deduped list grep -vxf $latentWhitelist $origin/$matter > $origin/$andLight gravity_advanced