mirror of
https://github.com/pi-hole/pi-hole.git
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124 lines
5.2 KiB
Bash
Executable file
124 lines
5.2 KiB
Bash
Executable file
#!/usr/bin/env bash
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# http://pi-hole.net
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# Compiles a list of ad-serving domains by downloading them from multiple sources
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piholeIPfile=/tmp/piholeIP
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if [[ -f $piholeIPfile ]];then
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# If the file exists, it means it was exported from the installation script and we should use that value instead of detecting it in this script
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piholeIP=$(cat $piholeIPfile)
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rm $piholeIPfile
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else
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# Otherwise, the IP address can be taken directly from the machine, which will happen when the script is run by the user and not the installation script
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piholeIP=$(ip -4 addr show | awk '{match($0,/[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+/); ip = substr($0,RSTART,RLENGTH); print ip}' | sed '/^\s*$/d' | grep -v "127.0.0.1" | (head -n1))
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fi
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# Ad-list sources--one per line in single quotes
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# The mahakala source is commented out due to many users having issues with it blocking legitimate domains. Uncomment at your own risk
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sources=('https://adaway.org/hosts.txt'
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'http://adblock.gjtech.net/?format=unix-hosts'
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#'http://adblock.mahakala.is/'
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'http://hosts-file.net/ad_servers.txt'
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'http://www.malwaredomainlist.com/hostslist/hosts.txt'
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'http://pgl.yoyo.org/adservers/serverlist.php?'
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'http://someonewhocares.org/hosts/hosts'
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'http://winhelp2002.mvps.org/hosts.txt')
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# Variables for various stages of downloading and formatting the list
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basename=pihole
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piholeDir=/etc/$basename
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adList=$piholeDir/gravity.list
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blacklist=$piholeDir/blacklist.txt
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whitelist=$piholeDir/whitelist.txt
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latentWhitelist=$piholeDir/latentWhitelist.txt
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justDomainsExtension=domains
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matter=$basename.0.matter.txt
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andLight=$basename.1.andLight.txt
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supernova=$basename.2.supernova.txt
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eventHorizon=$basename.3.eventHorizon.txt
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accretionDisc=$basename.4.accretionDisc.txt
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eyeOfTheNeedle=$basename.5.wormhole.txt
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# After setting defaults, check if there's local overrides
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if [[ -r $piholeDir/pihole.conf ]];then
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echo "** Local calibration requested..."
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. $piholeDir/pihole.conf
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fi
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echo "** Neutrino emissions detected..."
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# Create the pihole resource directory if it doesn't exist. Future files will be stored here
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if [[ -d $piholeDir ]];then
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# Temporary hack to allow non-root access to pihole directory
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# Will update later, needed for existing installs, new installs should
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# create this directory as non-root
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sudo chmod 777 $piholeDir
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find "$piholeDir" -type f -exec sudo chmod 666 {} \;
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else
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echo "** Creating pihole directory..."
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mkdir $piholeDir
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fi
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###########################
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function gravity_patterncheck() {
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patternBuffer=$1
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# check if the patternbuffer is a non-zero length file
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if [[ -s "$patternBuffer" ]];then
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# Remove comments and print only the domain name
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# Most of the lists downloaded are already in hosts file format but the spacing/formating is not contigious
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# This helps with that and makes it easier to read
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# It also helps with debugging so each stage of the script can be researched more in depth
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awk '($1 !~ /^#/) { if (NF>1) {print $2} else {print $1}}' $patternBuffer | \
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sed -nr -e 's/\.{2,}/./g' -e '/\./p' > $saveLocation
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echo "Done."
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else
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# curl didn't download any host files, probably because of the date check
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echo "Transporter logic detected no changes, pattern skipped..."
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fi
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}
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# Remove carriage returns and preceding whitespace
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# not really needed anymore?
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cp $piholeDir/$andLight $piholeDir/$supernova
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# Sort and remove duplicates
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sort -u $piholeDir/$supernova > $piholeDir/$eventHorizon
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numberOf=$(wc -l < $piholeDir/$eventHorizon)
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echo "** $numberOf unique domains trapped in the event horizon."
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# Format domain list as "192.168.x.x domain.com"
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echo "** Formatting domains into a HOSTS file..."
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cat $piholeDir/$eventHorizon | awk '{sub(/\r$/,""); print "'"$piholeIP"' " $0}' > $piholeDir/$accretionDisc
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# Copy the file over as /etc/pihole/gravity.list so dnsmasq can use it
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cp $piholeDir/$accretionDisc $adList
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sudo kill -HUP $(pidof dnsmasq)
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}
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gravity_spinup
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# Whitelist (if applicable) then remove duplicates and format for dnsmasq
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if [[ -r $whitelist ]];then
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# Remove whitelist entries
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numberOf=$(cat $whitelist | sed '/^\s*$/d' | wc -l)
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plural=; [[ "$numberOf" != "1" ]] && plural=s
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echo "** Whitelisting $numberOf domain${plural}..."
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# Append a "$" to the end, prepend a "^" to the beginning, and
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# replace "." with "\." of each line to turn each entry into a
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# regexp so it can be parsed out with grep -x
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awk -F '[# \t]' 'NF>0&&$1!="" {print "^"$1"$"}' $whitelist | sed 's/\./\\./g' > $latentWhitelist
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else
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rm $latentWhitelist
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fi
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# Prevent our sources from being pulled into the hole
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plural=; [[ "${#sources[@]}" != "1" ]] && plural=s
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echo "** Whitelisting ${#sources[@]} ad list source${plural}..."
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for url in ${sources[@]}
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do
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echo "$url" | awk -F '/' '{print "^"$3"$"}' | sed 's/\./\\./g' >> $latentWhitelist
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done
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# Remove whitelist entries from deduped list
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grep -vxf $latentWhitelist $piholeDir/$matter > $piholeDir/$andLight
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gravity_advanced
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