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https://github.com/pi-hole/pi-hole.git
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Merge pull request #96 from dschaper/feature/AtomicFunctions
Feature/atomic functions
This commit is contained in:
Jacob Salmela
commit
3b9f7031d5
1 changed files with 107 additions and 96 deletions
203
gravity.sh
203
gravity.sh
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@ -4,6 +4,7 @@
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# Network-wide ad blocking via your Raspberry Pi
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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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@ -17,7 +18,8 @@ else
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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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# The mahakala source is commented out due to many users having issues with it blocking legitimate domains.
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# 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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@ -47,68 +49,70 @@ 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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###########################
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# collapse - begin formation of pihole
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function gravity_collapse() {
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echo "** Neutrino emissions detected..."
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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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# 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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else
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echo "** Creating pihole directory..."
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mkdir $piholeDir
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fi
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fi
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}
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# patternCheck - check to see if curl downloaded any new files, and then process those
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# files so they are in host format.
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# patternCheck - check to see if curl downloaded any new files.
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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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# Some of the blocklists are copyright, they need to be downloaded
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# and stored as is. They can be processed for content after they
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# have been saved.
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cp $patternBuffer $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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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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# Some of the blocklists are copyright, they need to be downloaded
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# and stored as is. They can be processed for content after they
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# have been saved.
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cp $patternBuffer $saveLocation
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echo "List updated, transport successful..."
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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 "No changes detected, transport skipped..."
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fi
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}
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# transport - curl the specified url with any needed command extentions, then patternCheck
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# transport - curl the specified url with any needed command extentions
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function gravity_transport() {
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url=$1
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cmd_ext=$2
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agent=$3
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# tmp file, so we don't have to store the (long!) lists in RAM
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patternBuffer=$(mktemp)
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heisenbergCompensator=""
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if [[ -r $saveLocation ]]; then
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# if domain has been saved, add file for date check to only download newer
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heisenbergCompensator="-z $saveLocation"
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fi
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# Silently curl url
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curl -s $cmd_ext $heisenbergCompensator -A "$agent" $url > $patternBuffer
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url=$1
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cmd_ext=$2
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agent=$3
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# tmp file, so we don't have to store the (long!) lists in RAM
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patternBuffer=$(mktemp)
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heisenbergCompensator=""
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if [[ -r $saveLocation ]]; then
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# if domain has been saved, add file for date check to only download newer
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heisenbergCompensator="-z $saveLocation"
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fi
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gravity_patternCheck $patternBuffer
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# Cleanup
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rm -f $patternBuffer
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# Silently curl url
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curl -s $cmd_ext $heisenbergCompensator -A "$agent" $url > $patternBuffer
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# Check for list updates
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gravity_patternCheck $patternBuffer
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# Cleanup
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rm -f $patternBuffer
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}
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# spinup - main gravity function
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function gravity_spinup() {
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# Loop through domain list. Download each one and remove commented lines (lines beginning with '# 'or '/') and blank lines
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for ((i = 0; i < "${#sources[@]}"; i++))
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do
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# 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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@ -119,7 +123,7 @@ do
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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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@ -136,33 +140,34 @@ do
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# Default is a simple request
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*) cmd_ext=""
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esac
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gravity_transport $url $cmd_ext $agent
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done
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gravity_transport $url $cmd_ext $agent
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done
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}
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# Schwarzchild - aggregate domains to one list and add blacklisted domains
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function gravity_Schwarzchild() {
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# Find all active domains and compile them into one file and remove CRs
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echo "** Aggregating list of domains..."
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truncate -s 0 $piholeDir/$matter
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for i in "${activeDomains[@]}"
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do
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cat $i |tr -d '\r' >> $piholeDir/$matter
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done
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# Find all active domains and compile them into one file and remove CRs
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echo "** Aggregating list of domains..."
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truncate -s 0 $piholeDir/$matter
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for i in "${activeDomains[@]}"
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do
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cat $i |tr -d '\r' >> $piholeDir/$matter
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done
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}
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# Append blacklist entries if they exist
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if [[ -r $blacklist ]];then
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# Pulsar - White/blacklist application
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function gravity_pulsar() {
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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 >> $piholeDir/$matter
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fi
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}
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fi
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function gravity_pulsar() {
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# Whitelist (if applicable) domains
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if [[ -r $whitelist ]];then
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# Whitelist (if applicable) domains
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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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@ -172,59 +177,65 @@ if [[ -r $whitelist ]];then
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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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else
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rm $latentWhitelist
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fi
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fi
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# Prevent our sources from being pulled into the hole
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plural=; [[ "${#sources[@]}" != "1" ]] && plural=s
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echo "** Whitelisting ${#sources[@]} ad list source${plural}..."
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for url in ${sources[@]}
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do
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# Prevent our sources from being pulled into the hole
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plural=; [[ "${#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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done
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# Remove whitelist entries from list
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grep -vxf $latentWhitelist $piholeDir/$matter > $piholeDir/$andLight
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# Remove whitelist entries from list
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grep -vxf $latentWhitelist $piholeDir/$matter > $piholeDir/$andLight
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}
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function gravity_unique() {
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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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# 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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}
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function gravity_hostFormat() {
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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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# 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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}
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# blackbody - remove any remnant files from script processes
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function gravity_blackbody() {
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for file in $piholeDir/*.$justDomainsExtension
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do
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if [[ " ${activeDomains[@]} " =~ " ${file} " ]]; then
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:
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else
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rm -f $file
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fi
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done
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# Loop through list files
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for file in $piholeDir/*.$justDomainsExtension
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do
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# If list is in active array then leave it (noop) else rm the list
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if [[ " ${activeDomains[@]} " =~ " ${file} " ]]; then
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:
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else
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rm -f $file
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fi
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done
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}
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function gravity_advanced() {
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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}}' $piholeDir/$andLight | \
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sed -nr -e 's/\.{2,}/./g' -e '/\./p' > $piholeDir/$supernova
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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}}' $piholeDir/$andLight | \
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sed -nr -e 's/\.{2,}/./g' -e '/\./p' > $piholeDir/$supernova
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numberOf=$(wc -l < $piholeDir/$supernova)
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echo "** $numberOf domains being pulled in by gravity..."
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numberOf=$(wc -l < $piholeDir/$supernova)
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echo "** $numberOf domains being pulled in by gravity..."
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gravity_unique
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sudo kill -HUP $(pidof dnsmasq)
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gravity_unique
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sudo kill -HUP $(pidof dnsmasq)
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}
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gravity_collapse
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