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https://github.com/pi-hole/pi-hole.git
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Start code refactor, eliminate some repetitive code
Begin code refactor prepatation, prevent DRY where possible.
This commit is contained in:
Dan Schaper
parent
a7d1b0b42c
commit
f02c37ec07
1 changed files with 66 additions and 108 deletions
174
gravity.sh
174
gravity.sh
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@ -1,11 +1,18 @@
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#!/bin/bash
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#!/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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# This script should only be run after you have a static IP address set on the Pi
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piholeIP=$(hostname -I)
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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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@ -16,139 +23,90 @@ sources=('https://adaway.org/hosts.txt'
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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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adList=/etc/pihole/gravity.list
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origin=/etc/pihole
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piholeDir=/etc/pihole
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justDomainsExtension=domains
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matter=pihole.0.matter.txt
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andLight=pihole.1.andLight.txt
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supernova=pihole.2.supernova.txt
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eventHorizon=pihole.3.eventHorizon.txt
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accretionDisc=pihole.4.accretionDisc.txt
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eyeOfTheNeedle=pihole.5.wormhole.txt
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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=$origin/latentWhitelist.txt
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latentWhitelist=$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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. $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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:
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:
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else
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echo "** Creating pihole directory..."
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sudo mkdir $piholeDir
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echo "** Creating pihole directory..."
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sudo mkdir $piholeDir
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fi
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# Loop through domain list. Download each one and remove commented lines (lines beginning with '# 'or '/') and blank lines
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for ((i = 0; i < "${#sources[@]}"; i++))
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do
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url=${sources[$i]}
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# Get just the domain from the URL
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domain=$(echo "$url" | cut -d'/' -f3)
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url=${sources[$i]}
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# Get just the domain from the URL
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domain=$(echo "$url" | cut -d'/' -f3)
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# Save the file as list.#.domain
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saveLocation=$origin/list.$i.$domain.$justDomainsExtension
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# Save the file as list.#.domain
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saveLocation=$piholeDir/list.$i.$domain.$justDomainsExtension
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agent="Mozilla/10.0"
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agent="Mozilla/10.0"
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echo -n "Getting $domain list... "
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echo -n "Getting $domain list... "
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# Use a case statement to download lists that need special cURL commands
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# to complete properly and reset the user agent when required
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case "$domain" in
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"adblock.mahakala.is")
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agent='Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0'
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cmd="curl -e http://forum.xda-developers.com/"
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;;
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# Use a case statement to download lists that need special cURL commands
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# to complete properly and reset the user agent when required
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case "$domain" in
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"adblock.mahakala.is")
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agent='Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0'
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cmd_ext="-e http://forum.xda-developers.com/"
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;;
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"pgl.yoyo.org")
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cmd="curl -d mimetype=plaintext -d hostformat=hosts"
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;;
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"pgl.yoyo.org")
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echo "** $numberOf domains being pulled in by gravity..."
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# Default is a simple curl request
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*) cmd="curl"
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esac
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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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# tmp file, so we don't have to store the (long!) lists in RAM
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patternBuffer=$(mktemp)
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heisenbergCompensator=""
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if [[ -r $saveLocation ]]; then
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heisenbergCompensator="-z $saveLocation"
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fi
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CMD="$cmd -s $heisenbergCompensator -A '$agent' $url > $patternBuffer"
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$cmd -s $heisenbergCompensator -A "$agent" $url > $patternBuffer
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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 "** $numberOf unique domains trapped in the event horizon."
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if [[ -s "$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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echo "Skipping pattern because transporter logic detected no changes..."
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fi
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# Cleanup
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rm -f $patternBuffer
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done
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# Find all files with the .domains extension and compile them into one file and remove CRs
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echo "** Aggregating list of domains..."
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find $origin/ -type f -name "*.$justDomainsExtension" -exec cat {} \; | tr -d '\r' > $origin/$matter
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# Append blacklist entries if they exist
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if [[ -r $blacklist ]];then
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numberOf=$(cat $blacklist | sed '/^\s*$/d' | wc -l)
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echo "** Blacklisting $numberOf domain(s)..."
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cat $blacklist >> $origin/$matter
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fi
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###########################
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function gravity_advanced() {
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numberOf=$(wc -l < $origin/$andLight)
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echo "** $numberOf domains being pulled in by gravity..."
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# Remove carriage returns and preceding whitespace
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# not really needed anymore?
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cp $origin/$andLight $origin/$supernova
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# Sort and remove duplicates
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sort -u $origin/$supernova > $origin/$eventHorizon
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numberOf=$(wc -l < $origin/$eventHorizon)
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echo "** $numberOf unique domains trapped in the event horizon."
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# Format domain list as "192.168.x.x domain.com"
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echo "** Formatting domains into a HOSTS file..."
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awk '{print "'"$piholeIP"'" $1}' $origin/$eventHorizon > $origin/$accretionDisc
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# Copy the file over as /etc/pihole/gravity.list so dnsmasq can use it
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sudo cp $origin/$accretionDisc $adList
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kill -HUP $(pidof dnsmasq)
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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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sudo cp $piholeDir/$accretionDisc $adList
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kill -HUP $(pidof dnsmasq)
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}
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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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# 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' > $latentWhitelist
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# Append a "$" 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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rm $latentWhitelist
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fi
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# Prevent our sources from being pulled into the hole
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@ -156,10 +114,10 @@ plural=; [[ "${#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' >> $latentWhitelist
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echo "$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 $origin/$matter > $origin/$andLight
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grep -vxf $latentWhitelist $piholeDir/$matter > $piholeDir/$andLight
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gravity_advanced
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