mirror of
https://github.com/pi-hole/pi-hole
synced 2024-11-18 14:18:15 +00:00
272 lines
7.9 KiB
Bash
Executable File
272 lines
7.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Pi-hole: A black hole for Internet advertisements
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# (c) 2017 Pi-hole, LLC (https://pi-hole.net)
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# Network-wide ad blocking via your own hardware.
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#
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# Whitelist and blacklist domains
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#
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# This file is copyright under the latest version of the EUPL.
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# Please see LICENSE file for your rights under this license.
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# Globals
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basename=pihole
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piholeDir=/etc/"${basename}"
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whitelist="${piholeDir}"/whitelist.txt
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blacklist="${piholeDir}"/blacklist.txt
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readonly regexlist="/etc/pihole/regex.list"
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reload=false
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addmode=true
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verbose=true
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wildcard=false
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domList=()
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listMain=""
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listAlt=""
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colfile="/opt/pihole/COL_TABLE"
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source ${colfile}
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helpFunc() {
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if [[ "${listMain}" == "${whitelist}" ]]; then
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param="w"
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type="white"
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elif [[ "${listMain}" == "${regexlist}" ]]; then
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param="wild"
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type="regex black"
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else
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param="b"
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type="black"
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fi
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echo "Usage: pihole -${param} [options] <domain> <domain2 ...>
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Example: 'pihole -${param} site.com', or 'pihole -${param} site1.com site2.com'
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${type^}list one or more domains
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Options:
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-d, --delmode Remove domain(s) from the ${type}list
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-nr, --noreload Update ${type}list without refreshing dnsmasq
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-q, --quiet Make output less verbose
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-h, --help Show this help dialog
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-l, --list Display all your ${type}listed domains
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--nuke Removes all entries in a list"
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exit 0
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}
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EscapeRegexp() {
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# This way we may safely insert an arbitrary
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# string in our regular expressions
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# This sed is intentionally executed in three steps to ease maintainability
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# The first sed removes any amount of leading dots
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echo $* | sed 's/^\.*//' | sed "s/[]\.|$(){}?+*^]/\\\\&/g" | sed "s/\\//\\\\\//g"
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}
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HandleOther() {
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# Convert to lowercase
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domain="${1,,}"
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# Check validity of domain (don't check for regex entries)
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if [[ "${#domain}" -le 253 ]]; then
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if [[ "${listMain}" == "${regexlist}" && "${wildcard}" == false ]]; then
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validDomain="${domain}"
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else
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validDomain=$(grep -P "^((-|_)*[a-z\\d]((-|_)*[a-z\\d])*(-|_)*)(\\.(-|_)*([a-z\\d]((-|_)*[a-z\\d])*))*$" <<< "${domain}") # Valid chars check
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validDomain=$(grep -P "^[^\\.]{1,63}(\\.[^\\.]{1,63})*$" <<< "${validDomain}") # Length of each label
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fi
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fi
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if [[ -n "${validDomain}" ]]; then
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domList=("${domList[@]}" ${validDomain})
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else
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echo -e " ${CROSS} ${domain} is not a valid argument or domain name!"
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fi
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}
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PoplistFile() {
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# Check whitelist file exists, and if not, create it
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if [[ ! -f "${whitelist}" ]]; then
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touch "${whitelist}"
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fi
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# Check blacklist file exists, and if not, create it
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if [[ ! -f "${blacklist}" ]]; then
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touch "${blacklist}"
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fi
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for dom in "${domList[@]}"; do
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# 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
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if ${addmode}; then
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AddDomain "${dom}" "${listMain}"
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RemoveDomain "${dom}" "${listAlt}"
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else
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RemoveDomain "${dom}" "${listMain}"
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fi
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done
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}
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AddDomain() {
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list="$2"
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domain=$(EscapeRegexp "$1")
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[[ "${list}" == "${whitelist}" ]] && listname="whitelist"
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[[ "${list}" == "${blacklist}" ]] && listname="blacklist"
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if [[ "${list}" == "${whitelist}" || "${list}" == "${blacklist}" ]]; then
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[[ "${list}" == "${whitelist}" && -z "${type}" ]] && type="--whitelist-only"
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[[ "${list}" == "${blacklist}" && -z "${type}" ]] && type="--blacklist-only"
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bool=true
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# Is the domain in the list we want to add it to?
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grep -Ex -q "${domain}" "${list}" > /dev/null 2>&1 || bool=false
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if [[ "${bool}" == false ]]; then
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# Domain not found in the whitelist file, add it!
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if [[ "${verbose}" == true ]]; then
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echo -e " ${INFO} Adding ${1} to ${listname}..."
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fi
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reload=true
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# Add it to the list we want to add it to
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echo "$1" >> "${list}"
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else
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if [[ "${verbose}" == true ]]; then
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echo -e " ${INFO} ${1} already exists in ${listname}, no need to add!"
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fi
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fi
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elif [[ "${list}" == "${regexlist}" ]]; then
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[[ -z "${type}" ]] && type="--wildcard-only"
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bool=true
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domain="${1}"
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[[ "${wildcard}" == true ]] && domain="((^)|(\\.))$(echo domain | sed "s/\./\\\./g")$"
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# Is the domain in the list?
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# Search only for exactly matching lines
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grep -Fx "${domain}" "${regexlist}" > /dev/null 2>&1 || bool=false
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if [[ "${bool}" == false ]]; then
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if [[ "${verbose}" == true ]]; then
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echo -e " ${INFO} Adding ${domain} to regex list..."
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fi
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reload="restart"
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echo "$domain" >> "${regexlist}"
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else
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if [[ "${verbose}" == true ]]; then
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echo -e " ${INFO} ${domain} already exists in regex list, no need to add!"
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fi
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fi
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fi
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}
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RemoveDomain() {
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list="$2"
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domain=$(EscapeRegexp "$1")
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[[ "${list}" == "${whitelist}" ]] && listname="whitelist"
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[[ "${list}" == "${blacklist}" ]] && listname="blacklist"
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if [[ "${list}" == "${whitelist}" || "${list}" == "${blacklist}" ]]; then
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bool=true
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[[ "${list}" == "${whitelist}" && -z "${type}" ]] && type="--whitelist-only"
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[[ "${list}" == "${blacklist}" && -z "${type}" ]] && type="--blacklist-only"
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# Is it in the list? Logic follows that if its whitelisted it should not be blacklisted and vice versa
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grep -Ex -q "${domain}" "${list}" > /dev/null 2>&1 || bool=false
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if [[ "${bool}" == true ]]; then
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# Remove it from the other one
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echo -e " ${INFO} Removing $1 from ${listname}..."
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# /I flag: search case-insensitive
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sed -i "/${domain}/Id" "${list}"
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reload=true
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else
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if [[ "${verbose}" == true ]]; then
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echo -e " ${INFO} ${1} does not exist in ${listname}, no need to remove!"
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fi
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fi
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elif [[ "${list}" == "${regexlist}" ]]; then
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[[ -z "${type}" ]] && type="--wildcard-only"
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domain="${1}"
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[[ "${wildcard}" == true ]] && domain="((^)|(\\.))$(echo domain | sed "s/\./\\\./g")$"
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bool=true
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# Is it in the list?
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grep -Fx "${domain}" "${regexlist}" > /dev/null 2>&1 || bool=false
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if [[ "${bool}" == true ]]; then
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# Remove it from the other one
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echo -e " ${INFO} Removing $domain from regex list..."
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local lineNumber
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lineNumber=$(grep -Fnx "$domain" "${list}" | cut -f1 -d:)
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sed -i "${lineNumber}d" "${list}"
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reload=true
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else
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if [[ "${verbose}" == true ]]; then
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echo -e " ${INFO} ${domain} does not exist in regex list, no need to remove!"
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fi
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fi
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fi
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}
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# Update Gravity
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Reload() {
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echo ""
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pihole -g --skip-download "${type:-}"
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}
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Displaylist() {
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if [[ -f ${listMain} ]]; then
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if [[ "${listMain}" == "${whitelist}" ]]; then
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string="gravity resistant domains"
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else
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string="domains caught in the sinkhole"
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fi
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verbose=false
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echo -e "Displaying $string:\n"
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count=1
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while IFS= read -r RD; do
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echo " ${count}: ${RD}"
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count=$((count+1))
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done < "${listMain}"
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else
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echo -e " ${COL_LIGHT_RED}${listMain} does not exist!${COL_NC}"
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fi
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exit 0;
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}
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NukeList() {
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if [[ -f "${listMain}" ]]; then
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# Back up original list
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cp "${listMain}" "${listMain}.bck~"
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# Empty out file
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echo "" > "${listMain}"
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fi
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}
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for var in "$@"; do
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case "${var}" in
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"-w" | "whitelist" ) listMain="${whitelist}"; listAlt="${blacklist}";;
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"-b" | "blacklist" ) listMain="${blacklist}"; listAlt="${whitelist}";;
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"-wild" | "wildcard" ) listMain="${regexlist}"; wildcard=true;;
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"-regex" | "regex" ) listMain="${regexlist}";;
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"-nr"| "--noreload" ) reload=false;;
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"-d" | "--delmode" ) addmode=false;;
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"-q" | "--quiet" ) verbose=false;;
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"-h" | "--help" ) helpFunc;;
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"-l" | "--list" ) Displaylist;;
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"--nuke" ) NukeList;;
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* ) HandleOther "${var}";;
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esac
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done
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shift
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if [[ $# = 0 ]]; then
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helpFunc
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fi
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PoplistFile
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if [[ "${reload}" != false ]]; then
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# Ensure that "restart" is used for Wildcard updates
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Reload "${reload}"
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fi
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