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pi-hole/advanced/Scripts/list.sh

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#!/usr/bin/env bash
# shellcheck disable=SC1090
# Pi-hole: A black hole for Internet advertisements
# (c) 2017 Pi-hole, LLC (https://pi-hole.net)
# Network-wide ad blocking via your own hardware.
#
# Whitelist and blacklist domains
#
# This file is copyright under the latest version of the EUPL.
# Please see LICENSE file for your rights under this license.
# Globals
piholeDir="/etc/pihole"
GRAVITYDB="${piholeDir}/gravity.db"
# Source pihole-FTL from install script
pihole_FTL="${piholeDir}/pihole-FTL.conf"
if [[ -f "${pihole_FTL}" ]]; then
source "${pihole_FTL}"
fi
# Set this only after sourcing pihole-FTL.conf as the gravity database path may
# have changed
gravityDBfile="${GRAVITYDB}"
noReloadRequested=false
addmode=true
verbose=true
wildcard=false
web=false
domList=()
typeId=""
comment=""
declare -i domaincount
domaincount=0
reload=false
colfile="/opt/pihole/COL_TABLE"
source ${colfile}
# IDs are hard-wired to domain interpretation in the gravity database scheme
# Clients (including FTL) will read them through the corresponding views
readonly whitelist="0"
readonly blacklist="1"
readonly regex_whitelist="2"
readonly regex_blacklist="3"
GetListnameFromTypeId() {
if [[ "$1" == "${whitelist}" ]]; then
echo "whitelist"
elif [[ "$1" == "${blacklist}" ]]; then
echo "blacklist"
elif [[ "$1" == "${regex_whitelist}" ]]; then
echo "regex whitelist"
elif [[ "$1" == "${regex_blacklist}" ]]; then
echo "regex blacklist"
fi
}
GetListParamFromTypeId() {
if [[ "${typeId}" == "${whitelist}" ]]; then
echo "w"
elif [[ "${typeId}" == "${blacklist}" ]]; then
echo "b"
elif [[ "${typeId}" == "${regex_whitelist}" && "${wildcard}" == true ]]; then
echo "-white-wild"
elif [[ "${typeId}" == "${regex_whitelist}" ]]; then
echo "-white-regex"
elif [[ "${typeId}" == "${regex_blacklist}" && "${wildcard}" == true ]]; then
echo "-wild"
elif [[ "${typeId}" == "${regex_blacklist}" ]]; then
echo "-regex"
fi
}
helpFunc() {
local listname param
listname="$(GetListnameFromTypeId "${typeId}")"
param="$(GetListParamFromTypeId)"
echo "Usage: pihole -${param} [options] <domain> <domain2 ...>
Example: 'pihole -${param} site.com', or 'pihole -${param} site1.com site2.com'
${listname^} one or more domains
Options:
-d, --delmode Remove domain(s) from the ${listname}
-nr, --noreload Update ${listname} without reloading the DNS server
-q, --quiet Make output less verbose
-h, --help Show this help dialog
-l, --list Display all your ${listname}listed domains
--nuke Removes all entries in a list
--comment \"text\" Add a comment to the domain. If adding multiple domains the same comment will be used for all"
exit 0
}
ValidateDomain() {
# Convert to lowercase
domain="${1,,}"
# Check validity of domain (don't check for regex entries)
if [[ "${#domain}" -le 253 ]]; then
if [[ ( "${typeId}" == "${regex_blacklist}" || "${typeId}" == "${regex_whitelist}" ) && "${wildcard}" == false ]]; then
validDomain="${domain}"
else
validDomain=$(grep -P "^((-|_)*[a-z\\d]((-|_)*[a-z\\d])*(-|_)*)(\\.(-|_)*([a-z\\d]((-|_)*[a-z\\d])*))*$" <<< "${domain}") # Valid chars check
validDomain=$(grep -P "^[^\\.]{1,63}(\\.[^\\.]{1,63})*$" <<< "${validDomain}") # Length of each label
fi
fi
if [[ -n "${validDomain}" ]]; then
domList=("${domList[@]}" "${validDomain}")
else
echo -e " ${CROSS} ${domain} is not a valid argument or domain name!"
fi
domaincount=$((domaincount+1))
}
ProcessDomainList() {
for dom in "${domList[@]}"; do
# Format domain into regex filter if requested
if [[ "${wildcard}" == true ]]; then
dom="(\\.|^)${dom//\./\\.}$"
fi
# 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}"
else
RemoveDomain "${dom}"
fi
done
}
AddDomain() {
local domain num requestedListname existingTypeId existingListname
domain="$1"
# Is the domain in the list we want to add it to?
num="$(pihole-FTL sqlite3 "${gravityDBfile}" "SELECT COUNT(*) FROM domainlist WHERE domain = '${domain}';")"
requestedListname="$(GetListnameFromTypeId "${typeId}")"
if [[ "${num}" -ne 0 ]]; then
existingTypeId="$(pihole-FTL sqlite3 "${gravityDBfile}" "SELECT type FROM domainlist WHERE domain = '${domain}';")"
if [[ "${existingTypeId}" == "${typeId}" ]]; then
if [[ "${verbose}" == true ]]; then
echo -e " ${INFO} ${1} already exists in ${requestedListname}, no need to add!"
fi
else
existingListname="$(GetListnameFromTypeId "${existingTypeId}")"
pihole-FTL sqlite3 "${gravityDBfile}" "UPDATE domainlist SET type = ${typeId} WHERE domain='${domain}';"
if [[ "${verbose}" == true ]]; then
echo -e " ${INFO} ${1} already exists in ${existingListname}, it has been moved to ${requestedListname}!"
fi
fi
return
fi
# Domain not found in the table, add it!
if [[ "${verbose}" == true ]]; then
echo -e " ${INFO} Adding ${domain} to the ${requestedListname}..."
fi
reload=true
# Insert only the domain here. The enabled and date_added fields will be filled
# with their default values (enabled = true, date_added = current timestamp)
if [[ -z "${comment}" ]]; then
pihole-FTL sqlite3 "${gravityDBfile}" "INSERT INTO domainlist (domain,type) VALUES ('${domain}',${typeId});"
else
# also add comment when variable has been set through the "--comment" option
pihole-FTL sqlite3 "${gravityDBfile}" "INSERT INTO domainlist (domain,type,comment) VALUES ('${domain}',${typeId},'${comment}');"
fi
}
RemoveDomain() {
local domain num requestedListname
domain="$1"
# Is the domain in the list we want to remove it from?
num="$(pihole-FTL sqlite3 "${gravityDBfile}" "SELECT COUNT(*) FROM domainlist WHERE domain = '${domain}' AND type = ${typeId};")"
requestedListname="$(GetListnameFromTypeId "${typeId}")"
if [[ "${num}" -eq 0 ]]; then
if [[ "${verbose}" == true ]]; then
echo -e " ${INFO} ${domain} does not exist in ${requestedListname}, no need to remove!"
fi
return
fi
# Domain found in the table, remove it!
if [[ "${verbose}" == true ]]; then
echo -e " ${INFO} Removing ${domain} from the ${requestedListname}..."
fi
reload=true
# Remove it from the current list
pihole-FTL sqlite3 "${gravityDBfile}" "DELETE FROM domainlist WHERE domain = '${domain}' AND type = ${typeId};"
}
Displaylist() {
local count num_pipes domain enabled status nicedate requestedListname
requestedListname="$(GetListnameFromTypeId "${typeId}")"
data="$(pihole-FTL sqlite3 "${gravityDBfile}" "SELECT domain,enabled,date_modified FROM domainlist WHERE type = ${typeId};" 2> /dev/null)"
if [[ -z $data ]]; then
echo -e "Not showing empty list"
else
echo -e "Displaying ${requestedListname}:"
count=1
while IFS= read -r line
do
# Count number of pipes seen in this line
# This is necessary because we can only detect the pipe separating the fields
# from the end backwards as the domain (which is the first field) may contain
# pipe symbols as they are perfectly valid regex filter control characters
num_pipes="$(grep -c "^" <<< "$(grep -o "|" <<< "${line}")")"
# Extract domain and enabled status based on the obtained number of pipe characters
domain="$(cut -d'|' -f"-$((num_pipes-1))" <<< "${line}")"
enabled="$(cut -d'|' -f"$((num_pipes))" <<< "${line}")"
datemod="$(cut -d'|' -f"$((num_pipes+1))" <<< "${line}")"
# Translate boolean status into human readable string
if [[ "${enabled}" -eq 1 ]]; then
status="enabled"
else
status="disabled"
fi
# Get nice representation of numerical date stored in database
nicedate=$(date --rfc-2822 -d "@${datemod}")
echo " ${count}: ${domain} (${status}, last modified ${nicedate})"
count=$((count+1))
done <<< "${data}"
fi
exit 0;
}
NukeList() {
count=$(pihole-FTL sqlite3 "${gravityDBfile}" "SELECT COUNT(1) FROM domainlist WHERE type = ${typeId};")
listname="$(GetListnameFromTypeId "${typeId}")"
if [ "$count" -gt 0 ];then
pihole-FTL sqlite3 "${gravityDBfile}" "DELETE FROM domainlist WHERE type = ${typeId};"
echo " ${TICK} Removed ${count} domain(s) from the ${listname}"
else
echo " ${INFO} ${listname} already empty. Nothing to do!"
fi
exit 0;
}
GetComment() {
comment="$1"
if [[ "${comment}" =~ [^a-zA-Z0-9_\#:/\.,\ -] ]]; then
echo " ${CROSS} Found invalid characters in domain comment!"
exit
fi
}
while (( "$#" )); do
case "${1}" in
"-w" | "whitelist" ) typeId=0;;
"-b" | "blacklist" ) typeId=1;;
"--white-regex" | "white-regex" ) typeId=2;;
"--white-wild" | "white-wild" ) typeId=2; wildcard=true;;
"--wild" | "wildcard" ) typeId=3; wildcard=true;;
"--regex" | "regex" ) typeId=3;;
"-nr"| "--noreload" ) noReloadRequested=true;;
"-d" | "--delmode" ) addmode=false;;
"-q" | "--quiet" ) verbose=false;;
"-h" | "--help" ) helpFunc;;
"-l" | "--list" ) Displaylist;;
"--nuke" ) NukeList;;
"--web" ) web=true;;
"--comment" ) GetComment "${2}"; shift;;
* ) ValidateDomain "${1}";;
esac
shift
done
shift
if [[ ${domaincount} == 0 ]]; then
helpFunc
fi
ProcessDomainList
# Used on web interface
if $web; then
echo "DONE"
fi
if [[ ${reload} == true && ${noReloadRequested} == false ]]; then
pihole restartdns reload-lists
fi