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|
#!/usr/bin/env bash
# Pi-hole: A black hole for Internet advertisements
# (c) 2015, 2016 by Jacob Salmela
# Network-wide ad blocking via your Raspberry Pi
# http://pi-hole.net
# Whitelists and blacklists domains
#
# Pi-hole is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#globals
basename=pihole
piholeDir=/etc/${basename}
whitelist=${piholeDir}/whitelist.txt
blacklist=${piholeDir}/blacklist.txt
readonly wildcardlist="/etc/dnsmasq.d/03-pihole-wildcard.conf"
reload=false
addmode=true
verbose=true
domList=()
domToRemoveList=()
listMain=""
listAlt=""
helpFunc() {
if [[ ${listMain} == ${whitelist} ]]; then
letter="w"
word="white"
else
letter="b"
word="black"
fi
cat << EOM
::: Immediately ${word}lists one or more domains in the hosts file
:::
::: Usage: pihole -${letter} domain1 [domain2 ...]
:::
::: Options:
::: -d, --delmode Remove domains from the ${word}list
::: -nr, --noreload Update ${word}list without refreshing dnsmasq
::: -q, --quiet output is less verbose
::: -h, --help Show this help dialog
::: -l, --list Display your ${word}listed domains
EOM
if [[ "${letter}" == "b" ]]; then
echo "::: -wild, --wildcard Add whitecard entry (only blacklist)"
fi
exit 0
}
EscapeRegexp() {
# This way we may safely insert an arbitrary
# string in our regular expressions
# Also remove leading "." if present
echo $* | sed 's/^\.*//' | sed "s/[]\.|$(){}?+*^]/\\\\&/g" | sed "s/\\//\\\\\//g"
}
HandleOther(){
# First, convert everything to lowercase
domain=$(sed -e "y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/" <<< "$1")
#check validity of domain
validDomain=$(echo "${domain}" | perl -lne 'print if /^(?!.*[^a-z0-9-\.].*)\b((?=[a-z0-9-]{1,63}\.)(xn--)?[a-z0-9]+(-[a-z0-9]+)*\.)*[a-z]{2,63}\b/')
if [ -z "${validDomain}" ]; then
echo "::: $1 is not a valid argument or domain name"
else
domList=("${domList[@]}" ${validDomain})
fi
}
PoplistFile() {
#check whitelist file exists, and if not, create it
if [[ ! -f ${whitelist} ]]; then
touch ${whitelist}
fi
for dom in "${domList[@]}"; do
# Logic : If addmode then add to desired list and remove from the other; if delmode then remove from desired list but do not add to the other
if ${addmode}; then
AddDomain "${dom}" "${listMain}"
RemoveDomain "${dom}" "${listAlt}"
else
RemoveDomain "${dom}" "${listMain}"
fi
done
}
AddDomain() {
list="$2"
domain=$(EscapeRegexp "$1")
if [[ "${list}" == "${whitelist}" || "${list}" == "${blacklist}" ]]; then
bool=true
#Is the domain in the list we want to add it to?
grep -Ex -q "${domain}" "${list}" > /dev/null 2>&1 || bool=false
if [[ "${bool}" == false ]]; then
#domain not found in the whitelist file, add it!
if [[ "${verbose}" == true ]]; then
echo "::: Adding $1 to $list..."
fi
reload=true
# Add it to the list we want to add it to
echo "$1" >> "${list}"
else
if [[ "${verbose}" == true ]]; then
echo "::: ${1} already exists in ${list}, no need to add!"
fi
fi
elif [[ "${list}" == "${wildcardlist}" ]]; then
source "${piholeDir}/setupVars.conf"
#Remove the /* from the end of the IPv4addr.
IPV4_ADDRESS=${IPV4_ADDRESS%/*}
IPV6_ADDRESS=${IPV6_ADDRESS}
bool=true
#Is the domain in the list?
grep -e "address=\/${domain}\/" "${wildcardlist}" > /dev/null 2>&1 || bool=false
if [[ "${bool}" == false ]]; then
if [[ "${verbose}" == true ]]; then
echo "::: Adding $1 to wildcard blacklist..."
fi
reload=true
echo "address=/$1/${IPV4_ADDRESS}" >> "${wildcardlist}"
if [[ ${#IPV6_ADDRESS} > 0 ]] ; then
echo "address=/$1/${IPV6_ADDRESS}" >> "${wildcardlist}"
fi
else
if [[ "${verbose}" == true ]]; then
echo "::: ${1} already exists in wildcard blacklist, no need to add!"
fi
fi
fi
}
RemoveDomain() {
list="$2"
domain=$(EscapeRegexp "$1")
if [[ "${list}" == "${whitelist}" || "${list}" == "${blacklist}" ]]; then
bool=true
#Is it in the list? Logic follows that if its whitelisted it should not be blacklisted and vice versa
grep -Ex -q "${domain}" "${list}" > /dev/null 2>&1 || bool=false
if [[ "${bool}" == true ]]; then
# Remove it from the other one
echo "::: Removing $1 from $list..."
# /I flag: search case-insensitive
sed -i "/${domain}/Id" "${list}"
reload=true
else
if [[ "${verbose}" == true ]]; then
echo "::: ${1} does not exist in ${list}, no need to remove!"
fi
fi
elif [[ "${list}" == "${wildcardlist}" ]]; then
bool=true
#Is it in the list?
grep -e "address=\/${domain}\/" "${wildcardlist}" > /dev/null 2>&1 || bool=false
if [[ "${bool}" == true ]]; then
# Remove it from the other one
echo "::: Removing $1 from $list..."
# /I flag: search case-insensitive
sed -i "/address=\/${domain}/Id" "${list}"
reload=true
else
if [[ "${verbose}" == true ]]; then
echo "::: ${1} does not exist in ${list}, no need to remove!"
fi
fi
fi
}
Reload() {
# Reload hosts file
pihole -g -sd
}
Displaylist() {
if [[ ${listMain} == ${whitelist} ]]; then
string="gravity resistant domains"
else
string="domains caught in the sinkhole"
fi
verbose=false
echo -e " Displaying $string \n"
count=1
while IFS= read -r RD; do
echo "${count}: ${RD}"
count=$((count+1))
done < "${listMain}"
exit 0;
}
for var in "$@"; do
case "${var}" in
"-w" | "whitelist" ) listMain="${whitelist}"; listAlt="${blacklist}";;
"-b" | "blacklist" ) listMain="${blacklist}"; listAlt="${whitelist}";;
"-wild" | "wildcard" ) listMain="${wildcardlist}";;
"-nr"| "--noreload" ) reload=false;;
"-d" | "--delmode" ) addmode=false;;
"-f" | "--force" ) force=true;;
"-q" | "--quiet" ) verbose=false;;
"-h" | "--help" ) helpFunc;;
"-l" | "--list" ) Displaylist;;
* ) HandleOther "${var}";;
esac
done
shift
if [[ $# = 0 ]]; then
helpFunc
fi
PoplistFile
if ${reload}; then
Reload
fi
|
