mirror of
https://github.com/pi-hole/pi-hole.git
synced 2024-12-25 22:30:17 +00:00
247 lines
8.4 KiB
Bash
Executable file
247 lines
8.4 KiB
Bash
Executable file
#!/usr/bin/env bash
|
|
# Pi-hole: A black hole for Internet advertisements
|
|
# (c) 2015 by Jacob Salmela GPL 2.0
|
|
# Network-wide ad blocking via your Raspberry Pi
|
|
# 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 '{for(i=1;i<=NF;i++)if($i~/dev/)print $(i+1)}')
|
|
piholeIPCIDR=$(ip -o -f inet addr show dev $IPv4dev | awk '{print $4}' | awk 'END {print}')
|
|
piholeIP=${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
|
|
basename=pihole
|
|
piholeDir=/etc/$basename
|
|
adList=$piholeDir/gravity.list
|
|
blacklist=$piholeDir/blacklist.txt
|
|
whitelist=$piholeDir/whitelist.txt
|
|
latentWhitelist=$piholeDir/latentWhitelist.txt
|
|
justDomainsExtension=domains
|
|
matter=$basename.0.matter.txt
|
|
andLight=$basename.1.andLight.txt
|
|
supernova=$basename.2.supernova.txt
|
|
eventHorizon=$basename.3.eventHorizon.txt
|
|
accretionDisc=$basename.4.accretionDisc.txt
|
|
eyeOfTheNeedle=$basename.5.wormhole.txt
|
|
|
|
# After setting defaults, check if there's local overrides
|
|
if [[ -r $piholeDir/pihole.conf ]];then
|
|
echo "** Local calibration requested..."
|
|
. $piholeDir/pihole.conf
|
|
fi
|
|
|
|
###########################
|
|
# collapse - begin formation of pihole
|
|
function gravity_collapse() {
|
|
echo "** Neutrino emissions detected..."
|
|
|
|
# Create the pihole resource directory if it doesn't exist. Future files will be stored here
|
|
if [[ -d $piholeDir ]];then
|
|
# Temporary hack to allow non-root access to pihole directory
|
|
# Will update later, needed for existing installs, new installs should
|
|
# create this directory as non-root
|
|
sudo chmod 777 $piholeDir
|
|
find "$piholeDir" -type f -exec sudo chmod 666 {} \;
|
|
else
|
|
echo "** Creating pihole directory..."
|
|
mkdir $piholeDir
|
|
fi
|
|
}
|
|
|
|
# patternCheck - check to see if curl downloaded any new files.
|
|
function gravity_patternCheck() {
|
|
patternBuffer=$1
|
|
# check if the patternbuffer is a non-zero length file
|
|
if [[ -s "$patternBuffer" ]];then
|
|
# Some of the blocklists are copyright, they need to be downloaded
|
|
# and stored as is. They can be processed for content after they
|
|
# have been saved.
|
|
cp $patternBuffer $saveLocation
|
|
echo "List updated, transport successful..."
|
|
else
|
|
# curl didn't download any host files, probably because of the date check
|
|
echo "No changes detected, transport skipped..."
|
|
fi
|
|
}
|
|
|
|
# transport - curl the specified url with any needed command extentions
|
|
function gravity_transport() {
|
|
url=$1
|
|
cmd_ext=$2
|
|
agent=$3
|
|
|
|
# tmp file, so we don't have to store the (long!) lists in RAM
|
|
patternBuffer=$(mktemp)
|
|
heisenbergCompensator=""
|
|
if [[ -r $saveLocation ]]; then
|
|
# if domain has been saved, add file for date check to only download newer
|
|
heisenbergCompensator="-z $saveLocation"
|
|
fi
|
|
|
|
# Silently curl url
|
|
curl -s $cmd_ext $heisenbergCompensator -A "$agent" $url > $patternBuffer
|
|
# Check for list updates
|
|
gravity_patternCheck $patternBuffer
|
|
|
|
# Cleanup
|
|
rm -f $patternBuffer
|
|
}
|
|
|
|
# spinup - main gravity function
|
|
function gravity_spinup() {
|
|
|
|
# Loop through domain list. Download each one and remove commented lines (lines beginning with '# 'or '/') and # blank lines
|
|
for ((i = 0; i < "${#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=$piholeDir/list.$i.$domain.$justDomainsExtension
|
|
activeDomains[$i]=$saveLocation
|
|
|
|
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_ext="-e http://forum.xda-developers.com/"
|
|
;;
|
|
|
|
"pgl.yoyo.org")
|
|
cmd_ext="-d mimetype=plaintext -d hostformat=hosts"
|
|
;;
|
|
|
|
# Default is a simple request
|
|
*) cmd_ext=""
|
|
esac
|
|
gravity_transport $url $cmd_ext $agent
|
|
done
|
|
}
|
|
|
|
# Schwarzchild - aggregate domains to one list and add blacklisted domains
|
|
function gravity_Schwarzchild() {
|
|
|
|
# Find all active domains and compile them into one file and remove CRs
|
|
echo "** Aggregating list of domains..."
|
|
truncate -s 0 $piholeDir/$matter
|
|
for i in "${activeDomains[@]}"
|
|
do
|
|
cat $i |tr -d '\r' >> $piholeDir/$matter
|
|
done
|
|
}
|
|
|
|
# Pulsar - White/blacklist application
|
|
function gravity_pulsar() {
|
|
|
|
# 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 >> $piholeDir/$matter
|
|
fi
|
|
|
|
# Whitelist (if applicable) domains
|
|
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 $latentWhitelist >/dev/null
|
|
fi
|
|
|
|
# Prevent our sources from being pulled into the hole
|
|
plural=; [[ "${#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 list
|
|
grep -vxf $latentWhitelist $piholeDir/$matter > $piholeDir/$andLight
|
|
}
|
|
|
|
function gravity_unique() {
|
|
# Sort and remove duplicates
|
|
sort -u $piholeDir/$supernova > $piholeDir/$eventHorizon
|
|
numberOf=$(wc -l < $piholeDir/$eventHorizon)
|
|
echo "** $numberOf unique domains trapped in the event horizon."
|
|
}
|
|
|
|
function gravity_hostFormat() {
|
|
# Format domain list as "192.168.x.x domain.com"
|
|
echo "** Formatting domains into a HOSTS file..."
|
|
cat $piholeDir/$eventHorizon | awk '{sub(/\r$/,""); print "'"$piholeIP"' " $0}' > $piholeDir/$accretionDisc
|
|
# Copy the file over as /etc/pihole/gravity.list so dnsmasq can use it
|
|
cp $piholeDir/$accretionDisc $adList
|
|
}
|
|
|
|
# blackbody - remove any remnant files from script processes
|
|
function gravity_blackbody() {
|
|
# Loop through list files
|
|
for file in $piholeDir/*.$justDomainsExtension
|
|
do
|
|
# If list is in active array then leave it (noop) else rm the list
|
|
if [[ " ${activeDomains[@]} " =~ " ${file} " ]]; then
|
|
:
|
|
else
|
|
rm -f $file
|
|
fi
|
|
done
|
|
}
|
|
|
|
function gravity_advanced() {
|
|
# 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}}' $piholeDir/$andLight | \
|
|
sed -nr -e 's/\.{2,}/./g' -e '/\./p' > $piholeDir/$supernova
|
|
|
|
numberOf=$(wc -l < $piholeDir/$supernova)
|
|
echo "** $numberOf domains being pulled in by gravity..."
|
|
|
|
gravity_unique
|
|
|
|
sudo kill -s -HUP $(pidof dnsmasq)
|
|
}
|
|
|
|
gravity_collapse
|
|
gravity_spinup
|
|
gravity_Schwarzchild
|
|
gravity_pulsar
|
|
gravity_advanced
|
|
gravity_hostFormat
|
|
gravity_blackbody
|