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pi-hole
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Merge pull request #96 from dschaper/feature/AtomicFunctions 

Feature/atomic functions
This commit is contained in:
Jacob Salmela 2015-11-27 18:10:51 -06:00
parent 9fe531d1aa 9892d06c0d
commit 3b9f7031d5
1 changed files with 107 additions and 96 deletions
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203
gravity.sh
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@ -4,6 +4,7 @@
# Network-wide ad blocking via your Raspberry Pi # Network-wide ad blocking via your Raspberry Pi
# http://pi-hole.net # http://pi-hole.net
# Compiles a list of ad-serving domains by downloading them from multiple sources # Compiles a list of ad-serving domains by downloading them from multiple sources
piholeIPfile=/tmp/piholeIP piholeIPfile=/tmp/piholeIP
if [[ -f $piholeIPfile ]];then 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 # 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
@ -17,7 +18,8 @@ else
fi fi
# Ad-list sources--one per line in single quotes # 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 # 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' sources=('https://adaway.org/hosts.txt'
'http://adblock.gjtech.net/?format=unix-hosts' 'http://adblock.gjtech.net/?format=unix-hosts'
#'http://adblock.mahakala.is/' #'http://adblock.mahakala.is/'
@ -47,68 +49,70 @@ if [[ -r $piholeDir/pihole.conf ]];then
echo "** Local calibration requested..." echo "** Local calibration requested..."
. $piholeDir/pihole.conf . $piholeDir/pihole.conf
fi fi
########################### ###########################
# collapse - begin formation of pihole # collapse - begin formation of pihole
function gravity_collapse() { function gravity_collapse() {
echo "** Neutrino emissions detected..." echo "** Neutrino emissions detected..."
# Create the pihole resource directory if it doesn't exist. Future files will be stored here # Create the pihole resource directory if it doesn't exist. Future files will be stored here
if [[ -d $piholeDir ]];then if [[ -d $piholeDir ]];then
# Temporary hack to allow non-root access to pihole directory # Temporary hack to allow non-root access to pihole directory
# Will update later, needed for existing installs, new installs should # Will update later, needed for existing installs, new installs should
# create this directory as non-root # create this directory as non-root
sudo chmod 777 $piholeDir sudo chmod 777 $piholeDir
find "$piholeDir" -type f -exec sudo chmod 666 {} \; find "$piholeDir" -type f -exec sudo chmod 666 {} \;
else else
echo "** Creating pihole directory..." echo "** Creating pihole directory..."
mkdir $piholeDir mkdir $piholeDir
fi fi
} }
# patternCheck - check to see if curl downloaded any new files, and then process those # patternCheck - check to see if curl downloaded any new files.
# files so they are in host format.
function gravity_patternCheck() { function gravity_patternCheck() {
patternBuffer=$1 patternBuffer=$1
# check if the patternbuffer is a non-zero length file # check if the patternbuffer is a non-zero length file
if [[ -s "$patternBuffer" ]];then if [[ -s "$patternBuffer" ]];then
# Some of the blocklists are copyright, they need to be downloaded # Some of the blocklists are copyright, they need to be downloaded
# and stored as is. They can be processed for content after they # and stored as is. They can be processed for content after they
# have been saved. # have been saved.
cp $patternBuffer $saveLocation cp $patternBuffer $saveLocation
echo "Done." echo "List updated, transport successful..."
else else
# curl didn't download any host files, probably because of the date check # curl didn't download any host files, probably because of the date check
echo "Transporter logic detected no changes, pattern skipped..." echo "No changes detected, transport skipped..."
fi fi
} }
# transport - curl the specified url with any needed command extentions, then patternCheck # transport - curl the specified url with any needed command extentions
function gravity_transport() { function gravity_transport() {
url=$1 url=$1
cmd_ext=$2 cmd_ext=$2
agent=$3 agent=$3
# tmp file, so we don't have to store the (long!) lists in RAM
patternBuffer=$(mktemp) # tmp file, so we don't have to store the (long!) lists in RAM
heisenbergCompensator="" patternBuffer=$(mktemp)
if [[ -r $saveLocation ]]; then heisenbergCompensator=""
# if domain has been saved, add file for date check to only download newer if [[ -r $saveLocation ]]; then
heisenbergCompensator="-z $saveLocation" # if domain has been saved, add file for date check to only download newer
fi heisenbergCompensator="-z $saveLocation"
# Silently curl url fi
curl -s $cmd_ext $heisenbergCompensator -A "$agent" $url > $patternBuffer
gravity_patternCheck $patternBuffer # Silently curl url
curl -s $cmd_ext $heisenbergCompensator -A "$agent" $url > $patternBuffer
# Cleanup # Check for list updates
rm -f $patternBuffer gravity_patternCheck $patternBuffer
# Cleanup
rm -f $patternBuffer
} }
# spinup - main gravity function # spinup - main gravity function
function gravity_spinup() { function gravity_spinup() {
# Loop through domain list. Download each one and remove commented lines (lines beginning with '# 'or '/') and blank lines # Loop through domain list. Download each one and remove commented lines (lines beginning with '# 'or '/') and # blank lines
for ((i = 0; i < "${#sources[@]}"; i++)) for ((i = 0; i < "${#sources[@]}"; i++))
do do
url=${sources[$i]} url=${sources[$i]}
# Get just the domain from the URL # Get just the domain from the URL
domain=$(echo "$url" | cut -d'/' -f3) domain=$(echo "$url" | cut -d'/' -f3)
@ -119,7 +123,7 @@ do
agent="Mozilla/10.0" agent="Mozilla/10.0"
echo -n "Getting $domain list... " echo -n " Getting $domain list: "
# Use a case statement to download lists that need special cURL commands # Use a case statement to download lists that need special cURL commands
# to complete properly and reset the user agent when required # to complete properly and reset the user agent when required
@ -136,33 +140,34 @@ do
# Default is a simple request # Default is a simple request
*) cmd_ext="" *) cmd_ext=""
esac esac
gravity_transport $url $cmd_ext $agent gravity_transport $url $cmd_ext $agent
done done
} }
# Schwarzchild - aggregate domains to one list and add blacklisted domains # Schwarzchild - aggregate domains to one list and add blacklisted domains
function gravity_Schwarzchild() { function gravity_Schwarzchild() {
# Find all active domains and compile them into one file and remove CRs # Find all active domains and compile them into one file and remove CRs
echo "** Aggregating list of domains..." echo "** Aggregating list of domains..."
truncate -s 0 $piholeDir/$matter truncate -s 0 $piholeDir/$matter
for i in "${activeDomains[@]}" for i in "${activeDomains[@]}"
do do
cat $i |tr -d '\r' >> $piholeDir/$matter cat $i |tr -d '\r' >> $piholeDir/$matter
done done
}
# Append blacklist entries if they exist # Pulsar - White/blacklist application
if [[ -r $blacklist ]];then function gravity_pulsar() {
# Append blacklist entries if they exist
if [[ -r $blacklist ]];then
numberOf=$(cat $blacklist | sed '/^\s*$/d' | wc -l) numberOf=$(cat $blacklist | sed '/^\s*$/d' | wc -l)
echo "** Blacklisting $numberOf domain(s)..." echo "** Blacklisting $numberOf domain(s)..."
cat $blacklist >> $piholeDir/$matter cat $blacklist >> $piholeDir/$matter
fi fi
}
function gravity_pulsar() { # Whitelist (if applicable) domains
if [[ -r $whitelist ]];then
# Whitelist (if applicable) domains
if [[ -r $whitelist ]];then
# Remove whitelist entries # Remove whitelist entries
numberOf=$(cat $whitelist | sed '/^\s*$/d' | wc -l) numberOf=$(cat $whitelist | sed '/^\s*$/d' | wc -l)
plural=; [[ "$numberOf" != "1" ]] && plural=s plural=; [[ "$numberOf" != "1" ]] && plural=s
@ -172,59 +177,65 @@ if [[ -r $whitelist ]];then
# replace "." with "\." of each line to turn each entry into a # replace "." with "\." of each line to turn each entry into a
# regexp so it can be parsed out with grep -x # regexp so it can be parsed out with grep -x
awk -F '[# \t]' 'NF>0&&$1!="" {print "^"$1"$"}' $whitelist | sed 's/\./\\./g' > $latentWhitelist awk -F '[# \t]' 'NF>0&&$1!="" {print "^"$1"$"}' $whitelist | sed 's/\./\\./g' > $latentWhitelist
else else
rm $latentWhitelist rm $latentWhitelist
fi fi
# Prevent our sources from being pulled into the hole # Prevent our sources from being pulled into the hole
plural=; [[ "${#sources[@]}" != "1" ]] && plural=s plural=; [[ "${#sources[@]}" != "1" ]] && plural=s
echo "** Whitelisting ${#sources[@]} ad list source${plural}..." echo "** Whitelisting ${#sources[@]} ad list source${plural}..."
for url in ${sources[@]} for url in ${sources[@]}
do do
echo "$url" | awk -F '/' '{print "^"$3"$"}' | sed 's/\./\\./g' >> $latentWhitelist echo "$url" | awk -F '/' '{print "^"$3"$"}' | sed 's/\./\\./g' >> $latentWhitelist
done done
# Remove whitelist entries from list # Remove whitelist entries from list
grep -vxf $latentWhitelist $piholeDir/$matter > $piholeDir/$andLight grep -vxf $latentWhitelist $piholeDir/$matter > $piholeDir/$andLight
} }
function gravity_unique() { function gravity_unique() {
# Sort and remove duplicates # Sort and remove duplicates
sort -u $piholeDir/$supernova > $piholeDir/$eventHorizon sort -u $piholeDir/$supernova > $piholeDir/$eventHorizon
numberOf=$(wc -l < $piholeDir/$eventHorizon) numberOf=$(wc -l < $piholeDir/$eventHorizon)
echo "** $numberOf unique domains trapped in the event horizon." echo "** $numberOf unique domains trapped in the event horizon."
} }
function gravity_hostFormat() { function gravity_hostFormat() {
# Format domain list as "192.168.x.x domain.com" # Format domain list as "192.168.x.x domain.com"
echo "** Formatting domains into a HOSTS file..." echo "** Formatting domains into a HOSTS file..."
cat $piholeDir/$eventHorizon | awk '{sub(/\r$/,""); print "'"$piholeIP"' " $0}' > $piholeDir/$accretionDisc 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 # Copy the file over as /etc/pihole/gravity.list so dnsmasq can use it
cp $piholeDir/$accretionDisc $adList cp $piholeDir/$accretionDisc $adList
} }
# blackbody - remove any remnant files from script processes
function gravity_blackbody() { function gravity_blackbody() {
for file in $piholeDir/*.$justDomainsExtension # Loop through list files
do for file in $piholeDir/*.$justDomainsExtension
if [[ " ${activeDomains[@]} " =~ " ${file} " ]]; then do
: # If list is in active array then leave it (noop) else rm the list
else if [[ " ${activeDomains[@]} " =~ " ${file} " ]]; then
rm -f $file :
fi else
done rm -f $file
fi
done
} }
function gravity_advanced() { 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
# Remove comments and print only the domain name numberOf=$(wc -l < $piholeDir/$supernova)
# Most of the lists downloaded are already in hosts file format but the spacing/formating is not contigious echo "** $numberOf domains being pulled in by gravity..."
# 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) gravity_unique
echo "** $numberOf domains being pulled in by gravity..."
gravity_unique sudo kill -HUP $(pidof dnsmasq)
sudo kill -HUP $(pidof dnsmasq)
} }
gravity_collapse gravity_collapse