pi-hole/gravity.sh
CHannema ab929c5509 Moved sed replacement earlier so it's per-file
Instead of processing 1.6 milion entries in one go, sed will replace things on a per-hosts-file basis.
Placing it here should cover both existing pi-hole installations and fix things if gravity.sh is re-run.
2015-08-18 00:17:36 +02:00

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#!/bin/bash
# http://pi-hole.net
# Compiles a list of ad-serving domains by downloading them from multiple sources
# This script should only be run after you have a static IP address set on the Pi
piholeIP=$(hostname -I)
# Ad-list sources--one per line in single quotes
sources=('https://adaway.org/hosts.txt'
'http://adblock.gjtech.net/?format=unix-hosts'
'http://adblock.mahakala.is/'
'http://hosts-file.net/.%5Cad_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
if [[ -f $piholeDir/pihole.conf ]];then
. $piholeDir/pihole.conf
fi
justDomainsExtension=domains
matter=pihole.0.matter.txt
andLight=pihole.1.andLight.txt
supernova=pihole.2.supernova.txt
eventHorizon=pihole.3.eventHorizon.txt
accretionDisc=pihole.4.accretionDisc.txt
eyeOfTheNeedle=pihole.5.wormhole.txt
blacklist=$piholeDir/blacklist.txt
latentBlacklist=$origin/latentBlacklist.txt
whitelist=$piholeDir/whitelist.txt
latentWhitelist=$origin/latentWhitelist.txt
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
# Get just the domain from the URL
domain=$(echo "${sources[$i]}" | cut -d'/' -f3)
# Save the file as list.#.domain
saveLocation=$origin/"list"."$i"."$domain"
# Use a case statement to download lists that need special cURL commands to complete properly
case "$domain" in
"adblock.mahakala.is") data=$(curl -s -A 'Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0' -e http://forum.xda-developers.com/ -z $saveLocation."$justDomainsExtension" "${sources[$i]}");;
"pgl.yoyo.org") data=$(curl -s -d mimetype=plaintext -d hostformat=hosts -z $saveLocation."$justDomainsExtension" "${sources[$i]}");;
*) data=$(curl -s -z $saveLocation."$justDomainsExtension" -A "Mozilla/10.0" "${sources[$i]}");;
esac
if [[ -n "$data" ]];then
echo "Getting $domain list..."
# Remove comments and print only the domain name
# Most of the lists downloaded are already in hosts file format but the spacing/formating is not contigious
# This helps with that and makes it easier to read
# It also helps with debugging so each stage of the script can be researched more in depth
echo "$data" | awk 'NF {if ($1 !~ "#") { if (NF>1) {print $2} else {print $1}}}' > $saveLocation."$justDomainsExtension"
# replace domains that have two dots (..com) with one dot and let duplicate removal sort out any duplicate domains
sed -i -e 's/\.\./\./g' $saveLocation."$justDomainsExtension"
else
echo "Skipping $domain list because it does not have any new entries..."
fi
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 [[ -f $blacklist ]];then
numberOf=$(cat $blacklist | sed '/^\s*$/d' | wc -l)
echo "** Blacklisting $numberOf domain(s)..."
cat $blacklist >> $origin/$matter
else
:
fi
function gravity_advanced()
###########################
{
numberOf=$(cat $origin/$andLight | sed '/^\s*$/d' | wc -l)
echo "** $numberOf domains being pulled in by gravity..."
# Remove carriage returns and preceding whitespace
cat $origin/$andLight | sed $'s/\r$//' | sed '/^\s*$/d' > $origin/$supernova
# Sort and remove duplicates
cat $origin/$supernova | sort | uniq > $origin/$eventHorizon
numberOf=$(cat $origin/$eventHorizon | sed '/^\s*$/d' | wc -l)
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 [[ -f $whitelist ]];then
# Remove whitelist entries
numberOf=$(cat $whitelist | sed '/^\s*$/d' | wc -l)
echo "** Whitelisting $numberOf domain(s)..."
# Append a "$" to the end of each line so it can be parsed out with grep -w
echo -n "^$" > $latentWhitelist
awk -F '[# \t]' 'NF>0&&$1!="" {print $1"$"}' $whitelist > $latentWhitelist
cat $origin/$matter | grep -vwf $latentWhitelist > $origin/$andLight
gravity_advanced
else
cat $origin/$matter > $origin/$andLight
gravity_advanced
fi