Merge branch 'development' of https://github.com/Mograine/pi-hole into patch-1

15 files changed, 743 insertions, 279 deletions

diff --git a/advanced/01-pihole.conf b/advanced/01-pihole.conf
index 5919034d..2c8b3749 100644
--- a/advanced/01-pihole.conf
+++ b/advanced/01-pihole.conf
@@ -18,8 +18,6 @@
 #                    WITHIN /etc/dnsmasq.d/yourname.conf                      #
 ###############################################################################
 
-addn-hosts=/etc/pihole/gravity.list
-addn-hosts=/etc/pihole/black.list
 addn-hosts=/etc/pihole/local.list
 addn-hosts=/etc/pihole/custom.list
 
diff --git a/advanced/Scripts/database_migration/gravity-db.sh b/advanced/Scripts/database_migration/gravity-db.sh
new file mode 100644
index 00000000..0fe90d8a
--- /dev/null
+++ b/advanced/Scripts/database_migration/gravity-db.sh
@@ -0,0 +1,44 @@
+#!/usr/bin/env bash
+# shellcheck disable=SC1090
+
+# Pi-hole: A black hole for Internet advertisements
+# (c) 2019 Pi-hole, LLC (https://pi-hole.net)
+# Network-wide ad blocking via your own hardware.
+#
+# Updates gravity.db database
+#
+# This file is copyright under the latest version of the EUPL.
+# Please see LICENSE file for your rights under this license.
+
+upgrade_gravityDB(){
+	local database piholeDir auditFile version
+	database="${1}"
+	piholeDir="${2}"
+	auditFile="${piholeDir}/auditlog.list"
+
+	# Get database version
+	version="$(sqlite3 "${database}" "SELECT \"value\" FROM \"info\" WHERE \"property\" = 'version';")"
+
+	if [[ "$version" == "1" ]]; then
+		# This migration script upgrades the gravity.db file by
+		# adding the domain_audit table
+		echo -e "  ${INFO} Upgrading gravity database from version 1 to 2"
+		sqlite3 "${database}" < "/etc/.pihole/advanced/Scripts/database_migration/gravity/1_to_2.sql"
+		version=2
+
+		# Store audit domains in database table
+		if [ -e "${auditFile}" ]; then
+			echo -e "  ${INFO} Migrating content of ${auditFile} into new database"
+			# database_table_from_file is defined in gravity.sh
+			database_table_from_file "domain_audit" "${auditFile}"
+		fi
+	fi
+	if [[ "$version" == "2" ]]; then
+		# This migration script upgrades the gravity.db file by
+		# renaming the regex table to regex_blacklist, and
+		# creating a new regex_whitelist table + corresponding linking table and views
+		echo -e "  ${INFO} Upgrading gravity database from version 2 to 3"
+		sqlite3 "${database}" < "/etc/.pihole/advanced/Scripts/database_migration/gravity/2_to_3.sql"
+		version=3
+	fi
+}
diff --git a/advanced/Scripts/database_migration/gravity/1_to_2.sql b/advanced/Scripts/database_migration/gravity/1_to_2.sql
new file mode 100644
index 00000000..6d57a6fe
--- /dev/null
+++ b/advanced/Scripts/database_migration/gravity/1_to_2.sql
@@ -0,0 +1,14 @@
+.timeout 30000
+
+BEGIN TRANSACTION;
+
+CREATE TABLE domain_audit
+(
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	domain TEXT UNIQUE NOT NULL,
+	date_added INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int))
+);
+
+UPDATE info SET value = 2 WHERE property = 'version';
+
+COMMIT;
diff --git a/advanced/Scripts/database_migration/gravity/2_to_3.sql b/advanced/Scripts/database_migration/gravity/2_to_3.sql
new file mode 100644
index 00000000..fd7c24d2
--- /dev/null
+++ b/advanced/Scripts/database_migration/gravity/2_to_3.sql
@@ -0,0 +1,65 @@
+.timeout 30000
+
+PRAGMA FOREIGN_KEYS=OFF;
+
+BEGIN TRANSACTION;
+
+ALTER TABLE regex RENAME TO regex_blacklist;
+
+CREATE TABLE regex_blacklist_by_group
+(
+	regex_blacklist_id INTEGER NOT NULL REFERENCES regex_blacklist (id),
+	group_id INTEGER NOT NULL REFERENCES "group" (id),
+	PRIMARY KEY (regex_blacklist_id, group_id)
+);
+
+INSERT INTO regex_blacklist_by_group SELECT * FROM regex_by_group;
+DROP TABLE regex_by_group;
+DROP VIEW vw_regex;
+DROP TRIGGER tr_regex_update;
+
+CREATE VIEW vw_regex_blacklist AS SELECT DISTINCT domain
+    FROM regex_blacklist
+    LEFT JOIN regex_blacklist_by_group ON regex_blacklist_by_group.regex_blacklist_id = regex_blacklist.id
+    LEFT JOIN "group" ON "group".id = regex_blacklist_by_group.group_id
+    WHERE regex_blacklist.enabled = 1 AND (regex_blacklist_by_group.group_id IS NULL OR "group".enabled = 1)
+    ORDER BY regex_blacklist.id;
+
+CREATE TRIGGER tr_regex_blacklist_update AFTER UPDATE ON regex_blacklist
+    BEGIN
+      UPDATE regex_blacklist SET date_modified = (cast(strftime('%s', 'now') as int)) WHERE domain = NEW.domain;
+    END;
+
+CREATE TABLE regex_whitelist
+(
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	domain TEXT UNIQUE NOT NULL,
+	enabled BOOLEAN NOT NULL DEFAULT 1,
+	date_added INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	date_modified INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	comment TEXT
+);
+
+CREATE TABLE regex_whitelist_by_group
+(
+	regex_whitelist_id INTEGER NOT NULL REFERENCES regex_whitelist (id),
+	group_id INTEGER NOT NULL REFERENCES "group" (id),
+	PRIMARY KEY (regex_whitelist_id, group_id)
+);
+
+CREATE VIEW vw_regex_whitelist AS SELECT DISTINCT domain
+    FROM regex_whitelist
+    LEFT JOIN regex_whitelist_by_group ON regex_whitelist_by_group.regex_whitelist_id = regex_whitelist.id
+    LEFT JOIN "group" ON "group".id = regex_whitelist_by_group.group_id
+    WHERE regex_whitelist.enabled = 1 AND (regex_whitelist_by_group.group_id IS NULL OR "group".enabled = 1)
+    ORDER BY regex_whitelist.id;
+
+CREATE TRIGGER tr_regex_whitelist_update AFTER UPDATE ON regex_whitelist
+    BEGIN
+      UPDATE regex_whitelist SET date_modified = (cast(strftime('%s', 'now') as int)) WHERE domain = NEW.domain;
+    END;
+
+
+UPDATE info SET value = 3 WHERE property = 'version';
+
+COMMIT;
diff --git a/advanced/Scripts/list.sh b/advanced/Scripts/list.sh
index c1d95aae..6a606665 100755
--- a/advanced/Scripts/list.sh
+++ b/advanced/Scripts/list.sh
@@ -11,46 +11,51 @@
 # Globals
 basename=pihole
 piholeDir=/etc/"${basename}"
-whitelist="${piholeDir}"/whitelist.txt
-blacklist="${piholeDir}"/blacklist.txt
+gravityDBfile="${piholeDir}/gravity.db"
 
-readonly regexlist="/etc/pihole/regex.list"
 reload=false
 addmode=true
 verbose=true
 wildcard=false
+web=false
 
 domList=()
 
-listMain=""
-listAlt=""
+listType=""
+listname=""
 
 colfile="/opt/pihole/COL_TABLE"
 source ${colfile}
 
 
 helpFunc() {
-    if [[ "${listMain}" == "${whitelist}" ]]; then
+    if [[ "${listType}" == "whitelist" ]]; then
         param="w"
-        type="white"
-    elif [[ "${listMain}" == "${regexlist}" && "${wildcard}" == true ]]; then
+        type="whitelist"
+    elif [[ "${listType}" == "regex_blacklist" && "${wildcard}" == true ]]; then
         param="-wild"
-        type="wildcard black"
-    elif [[ "${listMain}" == "${regexlist}" ]]; then
+        type="wildcard blacklist"
+    elif [[ "${listType}" == "regex_blacklist" ]]; then
         param="-regex"
-        type="regex black"
+        type="regex blacklist filter"
+    elif [[ "${listType}" == "regex_whitelist" && "${wildcard}" == true ]]; then
+        param="-white-wild"
+        type="wildcard whitelist"
+    elif [[ "${listType}" == "regex_whitelist" ]]; then
+        param="-white-regex"
+        type="regex whitelist filter"
     else
         param="b"
-        type="black"
+        type="blacklist"
     fi
 
     echo "Usage: pihole -${param} [options] <domain> <domain2 ...>
 Example: 'pihole -${param} site.com', or 'pihole -${param} site1.com site2.com'
-${type^}list one or more domains
+${type^} one or more domains
 
 Options:
-  -d, --delmode       Remove domain(s) from the ${type}list
-  -nr, --noreload     Update ${type}list without refreshing dnsmasq
+  -d, --delmode       Remove domain(s) from the ${type}
+  -nr, --noreload     Update ${type} without reloading the DNS server
   -q, --quiet         Make output less verbose
   -h, --help          Show this help dialog
   -l, --list          Display all your ${type}listed domains
@@ -73,7 +78,7 @@ HandleOther() {
 
     # Check validity of domain (don't check for regex entries)
     if [[ "${#domain}" -le 253 ]]; then
-        if [[ "${listMain}" == "${regexlist}" && "${wildcard}" == false ]]; then
+        if [[ ( "${listType}" == "regex_blacklist" || "${listType}" == "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
@@ -88,175 +93,152 @@ HandleOther() {
     fi
 }
 
-PoplistFile() {
-    # Check whitelist file exists, and if not, create it
-    if [[ ! -f "${whitelist}" ]]; then
-        touch "${whitelist}"
-    fi
-
-    # Check blacklist file exists, and if not, create it
-    if [[ ! -f "${blacklist}" ]]; then
-        touch "${blacklist}"
+ProcessDomainList() {
+    local is_regexlist
+    if [[ "${listType}" == "regex_blacklist" ]]; then
+        # Regex black filter list
+        listname="regex blacklist filters"
+        is_regexlist=true
+    elif [[ "${listType}" == "regex_whitelist" ]]; then
+        # Regex white filter list
+        listname="regex whitelist filters"
+        is_regexlist=true
+    else
+        # Whitelist / Blacklist
+        listname="${listType}"
+        is_regexlist=false
     fi
 
     for dom in "${domList[@]}"; do
-        # Logic: If addmode then add to desired list and remove from the other; if delmode then remove from desired list but do not add to the other
+        # Format domain into regex filter if requested
+        if [[ "${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}" "${listMain}"
-            RemoveDomain "${dom}" "${listAlt}"
+            AddDomain "${dom}" "${listType}"
+            if ! ${is_regexlist}; then
+                RemoveDomain "${dom}" "${listAlt}"
+            fi
         else
-            RemoveDomain "${dom}" "${listMain}"
+            RemoveDomain "${dom}" "${listType}"
         fi
   done
 }
 
 AddDomain() {
+    local domain list num
+    # Use printf to escape domain. %q prints the argument in a form that can be reused as shell input
+    domain="$1"
     list="$2"
-    domain=$(EscapeRegexp "$1")
-
-    [[ "${list}" == "${whitelist}" ]] && listname="whitelist"
-    [[ "${list}" == "${blacklist}" ]] && listname="blacklist"
-
-    if [[ "${list}" == "${whitelist}" || "${list}" == "${blacklist}" ]]; then
-        [[ "${list}" == "${whitelist}" && -z "${type}" ]] && type="--whitelist-only"
-        [[ "${list}" == "${blacklist}" && -z "${type}" ]] && type="--blacklist-only"
-        bool=true
-        # Is the domain in the list we want to add it to?
-        grep -Ex -q "${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 -e "  ${INFO} Adding ${1} to ${listname}..."
-            fi
-            reload=true
-            # Add it to the list we want to add it to
-            echo "$1" >> "${list}"
-        else
-            if [[ "${verbose}" == true ]]; then
-                echo -e "  ${INFO} ${1} already exists in ${listname}, no need to add!"
-            fi
-        fi
-    elif [[ "${list}" == "${regexlist}" ]]; then
-        [[ -z "${type}" ]] && type="--wildcard-only"
-        bool=true
-        domain="${1}"
 
-        [[ "${wildcard}" == true ]] && domain="(^|\\.)${domain//\./\\.}$"
+    # Is the domain in the list we want to add it to?
+    num="$(sqlite3 "${gravityDBfile}" "SELECT COUNT(*) FROM ${list} WHERE domain = '${domain}';")"
 
-        # Is the domain in the list?
-        # Search only for exactly matching lines
-        grep -Fx "${domain}" "${regexlist}" > /dev/null 2>&1 || bool=false
+    if [[ "${num}" -ne 0 ]]; then
+      if [[ "${verbose}" == true ]]; then
+          echo -e "  ${INFO} ${1} already exists in ${listname}, no need to add!"
+      fi
+      return
+    fi
 
-        if [[ "${bool}" == false ]]; then
-            if [[ "${verbose}" == true ]]; then
-                echo -e "  ${INFO} Adding ${domain} to regex list..."
-            fi
-            reload="restart"
-            echo "$domain" >> "${regexlist}"
-        else
-            if [[ "${verbose}" == true ]]; then
-                echo -e "  ${INFO} ${domain} already exists in regex list, no need to add!"
-            fi
-        fi
+    # Domain not found in the table, add it!
+    if [[ "${verbose}" == true ]]; then
+        echo -e "  ${INFO} Adding ${1} to the ${listname}..."
     fi
+    reload=true
+    # Insert only the domain here. The enabled and date_added fields will be filled
+    # with their default values (enabled = true, date_added = current timestamp)
+    sqlite3 "${gravityDBfile}" "INSERT INTO ${list} (domain) VALUES ('${domain}');"
 }
 
 RemoveDomain() {
+    local domain list num
+    # Use printf to escape domain. %q prints the argument in a form that can be reused as shell input
+    domain="$1"
     list="$2"
-    domain=$(EscapeRegexp "$1")
-
-    [[ "${list}" == "${whitelist}" ]] && listname="whitelist"
-    [[ "${list}" == "${blacklist}" ]] && listname="blacklist"
-
-    if [[ "${list}" == "${whitelist}" || "${list}" == "${blacklist}" ]]; then
-        bool=true
-        [[ "${list}" == "${whitelist}" && -z "${type}" ]] && type="--whitelist-only"
-        [[ "${list}" == "${blacklist}" && -z "${type}" ]] && type="--blacklist-only"
-        # Is it in the list? Logic follows that if its whitelisted it should not be blacklisted and vice versa
-        grep -Ex -q "${domain}" "${list}" > /dev/null 2>&1 || bool=false
-        if [[ "${bool}" == true ]]; then
-            # Remove it from the other one
-            echo -e "  ${INFO} Removing $1 from ${listname}..."
-            # /I flag: search case-insensitive
-            sed -i "/${domain}/Id" "${list}"
-            reload=true
-        else
-            if [[ "${verbose}" == true ]]; then
-                echo -e "  ${INFO} ${1} does not exist in ${listname}, no need to remove!"
-            fi
-        fi
-    elif [[ "${list}" == "${regexlist}" ]]; then
-        [[ -z "${type}" ]] && type="--wildcard-only"
-        domain="${1}"
-
-        [[ "${wildcard}" == true ]] && domain="(^|\\.)${domain//\./\\.}$"
-
-        bool=true
-        # Is it in the list?
-        grep -Fx "${domain}" "${regexlist}" > /dev/null 2>&1 || bool=false
-        if [[ "${bool}" == true ]]; then
-            # Remove it from the other one
-            echo -e "  ${INFO} Removing $domain from regex list..."
-            local lineNumber
-            lineNumber=$(grep -Fnx "$domain" "${list}" | cut -f1 -d:)
-            sed -i "${lineNumber}d" "${list}"
-            reload=true
-        else
-            if [[ "${verbose}" == true ]]; then
-                echo -e "  ${INFO} ${domain} does not exist in regex list, no need to remove!"
-            fi
-        fi
+
+    # Is the domain in the list we want to remove it from?
+    num="$(sqlite3 "${gravityDBfile}" "SELECT COUNT(*) FROM ${list} WHERE domain = '${domain}';")"
+
+    if [[ "${num}" -eq 0 ]]; then
+      if [[ "${verbose}" == true ]]; then
+          echo -e "  ${INFO} ${1} does not exist in ${list}, no need to remove!"
+      fi
+      return
     fi
-}
 
-# Update Gravity
-Reload() {
-    echo ""
-    pihole -g --skip-download "${type:-}"
+    # Domain found in the table, remove it!
+    if [[ "${verbose}" == true ]]; then
+        echo -e "  ${INFO} Removing ${1} from the ${listname}..."
+    fi
+    reload=true
+    # Remove it from the current list
+    sqlite3 "${gravityDBfile}" "DELETE FROM ${list} WHERE domain = '${domain}';"
 }
 
 Displaylist() {
-    if [[ -f ${listMain} ]]; then
-        if [[ "${listMain}" == "${whitelist}" ]]; then
-            string="gravity resistant domains"
-        else
-            string="domains caught in the sinkhole"
-        fi
-        verbose=false
-        echo -e "Displaying $string:\n"
+    local list listname count num_pipes domain enabled status nicedate
+
+    listname="${listType}"
+    data="$(sqlite3 "${gravityDBfile}" "SELECT domain,enabled,date_modified FROM ${listType};" 2> /dev/null)"
+
+    if [[ -z $data ]]; then
+        echo -e "Not showing empty list"
+    else
+        echo -e "Displaying ${listname}:"
         count=1
-        while IFS= read -r RD || [ -n "${RD}" ]; do
-            echo "  ${count}: ${RD}"
+        while IFS= read -r line
+        do
+            # Count number of pipes seen in this line
+            # This is necessary because we can only detect the pipe separating the fields
+            # from the end backwards as the domain (which is the first field) may contain
+            # pipe symbols as they are perfectly valid regex filter control characters
+            num_pipes="$(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 < "${listMain}"
-    else
-        echo -e "  ${COL_LIGHT_RED}${listMain} does not exist!${COL_NC}"
+        done <<< "${data}"
     fi
     exit 0;
 }
 
 NukeList() {
-    if [[ -f "${listMain}" ]]; then
-        # Back up original list
-        cp "${listMain}" "${listMain}.bck~"
-        # Empty out file
-        echo "" > "${listMain}"
-    fi
+    sqlite3 "${gravityDBfile}" "DELETE FROM ${listType};"
 }
 
 for var in "$@"; do
     case "${var}" in
-        "-w" | "whitelist"   ) listMain="${whitelist}"; listAlt="${blacklist}";;
-        "-b" | "blacklist"   ) listMain="${blacklist}"; listAlt="${whitelist}";;
-        "--wild" | "wildcard" ) listMain="${regexlist}"; wildcard=true;;
-        "--regex" | "regex"   ) listMain="${regexlist}";;
+        "-w" | "whitelist"   ) listType="whitelist"; listAlt="blacklist";;
+        "-b" | "blacklist"   ) listType="blacklist"; listAlt="whitelist";;
+        "--wild" | "wildcard" ) listType="regex_blacklist"; wildcard=true;;
+        "--regex" | "regex"   ) listType="regex_blacklist";;
+        "--white-regex" | "white-regex" ) listType="regex_whitelist";;
+        "--white-wild" | "white-wild" ) listType="regex_whitelist"; wildcard=true;;
         "-nr"| "--noreload"  ) reload=false;;
         "-d" | "--delmode"   ) addmode=false;;
         "-q" | "--quiet"     ) verbose=false;;
         "-h" | "--help"      ) helpFunc;;
         "-l" | "--list"      ) Displaylist;;
         "--nuke"             ) NukeList;;
+        "--web"              ) web=true;;
         *                    ) HandleOther "${var}";;
     esac
 done
@@ -267,9 +249,13 @@ if [[ $# = 0 ]]; then
     helpFunc
 fi
 
-PoplistFile
+ProcessDomainList
+
+# Used on web interface
+if $web; then
+echo "DONE"
+fi
 
 if [[ "${reload}" != false ]]; then
-    # Ensure that "restart" is used for Wildcard updates
-    Reload "${reload}"
+    pihole restartdns reload
 fi
diff --git a/advanced/Scripts/piholeARPTable.sh b/advanced/Scripts/piholeARPTable.sh
new file mode 100755
index 00000000..aa45f9ad
--- /dev/null
+++ b/advanced/Scripts/piholeARPTable.sh
@@ -0,0 +1,73 @@
+#!/usr/bin/env bash
+# shellcheck disable=SC1090
+
+# Pi-hole: A black hole for Internet advertisements
+# (c) 2019 Pi-hole, LLC (https://pi-hole.net)
+# Network-wide ad blocking via your own hardware.
+#
+# ARP table interaction
+#
+# This file is copyright under the latest version of the EUPL.
+# Please see LICENSE file for your rights under this license.
+
+coltable="/opt/pihole/COL_TABLE"
+if [[ -f ${coltable} ]]; then
+    source ${coltable}
+fi
+
+# Determine database location
+# Obtain DBFILE=... setting from pihole-FTL.db
+# Constructed to return nothing when
+# a) the setting is not present in the config file, or
+# b) the setting is commented out (e.g. "#DBFILE=...")
+FTLconf="/etc/pihole/pihole-FTL.conf"
+if [ -e "$FTLconf" ]; then
+    DBFILE="$(sed -n -e 's/^\s*DBFILE\s*=\s*//p' ${FTLconf})"
+fi
+# Test for empty string. Use standard path in this case.
+if [ -z "$DBFILE" ]; then
+    DBFILE="/etc/pihole/pihole-FTL.db"
+fi
+
+
+flushARP(){
+    local output
+    if [[ "${args[1]}" != "quiet" ]]; then
+        echo -ne "  ${INFO} Flushing network table ..."
+    fi
+
+    # Flush ARP cache to avoid re-adding of dead entries
+    if ! output=$(ip neigh flush all 2>&1); then
+        echo -e "${OVER}  ${CROSS} Failed to clear ARP cache"
+        echo "  Output: ${output}"
+        return 1
+    fi
+
+    # Truncate network_addresses table in pihole-FTL.db
+    # This needs to be done before we can truncate the network table due to
+    # foreign key contraints
+    if ! output=$(sqlite3 "${DBFILE}" "DELETE FROM network_addresses" 2>&1); then
+        echo -e "${OVER}  ${CROSS} Failed to truncate network_addresses table"
+        echo "  Database location: ${DBFILE}"
+        echo "  Output: ${output}"
+        return 1
+    fi
+
+    # Truncate network table in pihole-FTL.db
+    if ! output=$(sqlite3 "${DBFILE}" "DELETE FROM network" 2>&1); then
+        echo -e "${OVER}  ${CROSS} Failed to truncate network table"
+        echo "  Database location: ${DBFILE}"
+        echo "  Output: ${output}"
+        return 1
+    fi
+
+    if [[ "${args[1]}" != "quiet" ]]; then
+        echo -e "${OVER}  ${TICK} Flushed network table"
+    fi
+}
+
+args=("$@")
+
+case "${args[0]}" in
+    "arpflush"            ) flushARP;;
+esac
diff --git a/advanced/Scripts/piholeCheckout.sh b/advanced/Scripts/piholeCheckout.sh
index c4b07a98..673ded0b 100644
--- a/advanced/Scripts/piholeCheckout.sh
+++ b/advanced/Scripts/piholeCheckout.sh
@@ -90,6 +90,7 @@ checkout() {
         local path
         path="development/${binary}"
         echo "development" > /etc/pihole/ftlbranch
+        chmod 644 /etc/pihole/ftlbranch
     elif [[ "${1}" == "master" ]] ; then
         # Shortcut to check out master branches
         echo -e "  ${INFO} Shortcut \"master\" detected - checking out master branches..."
@@ -104,6 +105,7 @@ checkout() {
         local path
         path="master/${binary}"
         echo "master" > /etc/pihole/ftlbranch
+        chmod 644 /etc/pihole/ftlbranch
     elif [[ "${1}" == "core" ]] ; then
         str="Fetching branches from ${piholeGitUrl}"
         echo -ne "  ${INFO} $str"
@@ -166,6 +168,7 @@ checkout() {
         if check_download_exists "$path"; then
             echo "  ${TICK} Branch ${2} exists"
             echo "${2}" > /etc/pihole/ftlbranch
+            chmod 644 /etc/pihole/ftlbranch
             FTLinstall "${binary}"
             restart_service pihole-FTL
             enable_service pihole-FTL
diff --git a/advanced/Scripts/piholeDebug.sh b/advanced/Scripts/piholeDebug.sh
index 1010f26c..84e34416 100755
--- a/advanced/Scripts/piholeDebug.sh
+++ b/advanced/Scripts/piholeDebug.sh
@@ -89,16 +89,40 @@ PIHOLE_WILDCARD_CONFIG_FILE="${DNSMASQ_D_DIRECTORY}/03-wildcard.conf"
 WEB_SERVER_CONFIG_FILE="${WEB_SERVER_CONFIG_DIRECTORY}/lighttpd.conf"
 #WEB_SERVER_CUSTOM_CONFIG_FILE="${WEB_SERVER_CONFIG_DIRECTORY}/external.conf"
 
-PIHOLE_DEFAULT_AD_LISTS="${PIHOLE_DIRECTORY}/adlists.default"
-PIHOLE_USER_DEFINED_AD_LISTS="${PIHOLE_DIRECTORY}/adlists.list"
-PIHOLE_BLACKLIST_FILE="${PIHOLE_DIRECTORY}/blacklist.txt"
-PIHOLE_BLOCKLIST_FILE="${PIHOLE_DIRECTORY}/gravity.list"
 PIHOLE_INSTALL_LOG_FILE="${PIHOLE_DIRECTORY}/install.log"
 PIHOLE_RAW_BLOCKLIST_FILES="${PIHOLE_DIRECTORY}/list.*"
 PIHOLE_LOCAL_HOSTS_FILE="${PIHOLE_DIRECTORY}/local.list"
 PIHOLE_LOGROTATE_FILE="${PIHOLE_DIRECTORY}/logrotate"
 PIHOLE_SETUP_VARS_FILE="${PIHOLE_DIRECTORY}/setupVars.conf"
-PIHOLE_WHITELIST_FILE="${PIHOLE_DIRECTORY}/whitelist.txt"
+PIHOLE_FTL_CONF_FILE="${PIHOLE_DIRECTORY}/pihole-FTL.conf"
+
+# Read the value of an FTL config key. The value is printed to stdout.
+#
+# Args:
+# 1. The key to read
+# 2. The default if the setting or config does not exist
+get_ftl_conf_value() {
+    local key=$1
+    local default=$2
+    local value
+
+    # Obtain key=... setting from pihole-FTL.conf
+    if [[ -e "$PIHOLE_FTL_CONF_FILE" ]]; then
+        # Constructed to return nothing when
+        # a) the setting is not present in the config file, or
+        # b) the setting is commented out (e.g. "#DBFILE=...")
+        value="$(sed -n -e "s/^\\s*$key=\\s*//p" ${PIHOLE_FTL_CONF_FILE})"
+    fi
+
+    # Test for missing value. Use default value in this case.
+    if [[ -z "$value" ]]; then
+        value="$default"
+    fi
+
+    echo "$value"
+}
+
+PIHOLE_GRAVITY_DB_FILE="$(get_ftl_conf_value "GRAVITYDB" "${PIHOLE_DIRECTORY}/gravity.db")"
 
 PIHOLE_COMMAND="${BIN_DIRECTORY}/pihole"
 PIHOLE_COLTABLE_FILE="${BIN_DIRECTORY}/COL_TABLE"
@@ -109,7 +133,7 @@ FTL_PORT="${RUN_DIRECTORY}/pihole-FTL.port"
 PIHOLE_LOG="${LOG_DIRECTORY}/pihole.log"
 PIHOLE_LOG_GZIPS="${LOG_DIRECTORY}/pihole.log.[0-9].*"
 PIHOLE_DEBUG_LOG="${LOG_DIRECTORY}/pihole_debug.log"
-PIHOLE_FTL_LOG="${LOG_DIRECTORY}/pihole-FTL.log"
+PIHOLE_FTL_LOG="$(get_ftl_conf_value "LOGFILE" "${LOG_DIRECTORY}/pihole-FTL.log")"
 
 PIHOLE_WEB_SERVER_ACCESS_LOG_FILE="${WEB_SERVER_LOG_DIRECTORY}/access.log"
 PIHOLE_WEB_SERVER_ERROR_LOG_FILE="${WEB_SERVER_LOG_DIRECTORY}/error.log"
@@ -142,16 +166,11 @@ REQUIRED_FILES=("${PIHOLE_CRON_FILE}"
 "${PIHOLE_DHCP_CONFIG_FILE}"
 "${PIHOLE_WILDCARD_CONFIG_FILE}"
 "${WEB_SERVER_CONFIG_FILE}"
-"${PIHOLE_DEFAULT_AD_LISTS}"
-"${PIHOLE_USER_DEFINED_AD_LISTS}"
-"${PIHOLE_BLACKLIST_FILE}"
-"${PIHOLE_BLOCKLIST_FILE}"
 "${PIHOLE_INSTALL_LOG_FILE}"
 "${PIHOLE_RAW_BLOCKLIST_FILES}"
 "${PIHOLE_LOCAL_HOSTS_FILE}"
 "${PIHOLE_LOGROTATE_FILE}"
 "${PIHOLE_SETUP_VARS_FILE}"
-"${PIHOLE_WHITELIST_FILE}"
 "${PIHOLE_COMMAND}"
 "${PIHOLE_COLTABLE_FILE}"
 "${FTL_PID}"
@@ -793,7 +812,7 @@ dig_at() {
     # This helps emulate queries to different domains that a user might query
     # It will also give extra assurance that Pi-hole is correctly resolving and blocking domains
     local random_url
-    random_url=$(shuf -n 1 "${PIHOLE_BLOCKLIST_FILE}")
+    random_url=$(sqlite3 "${PIHOLE_GRAVITY_DB_FILE}" "SELECT domain FROM vw_gravity ORDER BY RANDOM() LIMIT 1")
 
     # First, do a dig on localhost to see if Pi-hole can use itself to block a domain
     if local_dig=$(dig +tries=1 +time=2 -"${protocol}" "${random_url}" @${local_address} +short "${record_type}"); then
@@ -975,8 +994,7 @@ list_files_in_dir() {
         if [[ -d "${dir_to_parse}/${each_file}" ]]; then
             # If it's a directoy, do nothing
             :
-        elif [[ "${dir_to_parse}/${each_file}" == "${PIHOLE_BLOCKLIST_FILE}" ]] || \
-            [[ "${dir_to_parse}/${each_file}" == "${PIHOLE_DEBUG_LOG}" ]] || \
+        elif [[ "${dir_to_parse}/${each_file}" == "${PIHOLE_DEBUG_LOG}" ]] || \
             [[ "${dir_to_parse}/${each_file}" == "${PIHOLE_RAW_BLOCKLIST_FILES}" ]] || \
             [[ "${dir_to_parse}/${each_file}" == "${PIHOLE_INSTALL_LOG_FILE}" ]] || \
             [[ "${dir_to_parse}/${each_file}" == "${PIHOLE_SETUP_VARS_FILE}" ]] || \
@@ -1061,31 +1079,77 @@ head_tail_log() {
     IFS="$OLD_IFS"
 }
 
-analyze_gravity_list() {
-    echo_current_diagnostic "Gravity list"
-    local head_line
-    local tail_line
-    # Put the current Internal Field Separator into another variable so it can be restored later
+show_db_entries() {
+    local title="${1}"
+    local query="${2}"
+    local widths="${3}"
+
+    echo_current_diagnostic "${title}"
+
     OLD_IFS="$IFS"
-    # Get the lines that are in the file(s) and store them in an array for parsing later
     IFS=$'\r\n'
+    local entries=()
+    mapfile -t entries < <(\
+        sqlite3 "${PIHOLE_GRAVITY_DB_FILE}" \
+            -cmd ".headers on" \
+            -cmd ".mode column" \
+            -cmd ".width ${widths}" \
+            "${query}"\
+    )
+
+    for line in "${entries[@]}"; do
+        log_write "   ${line}"
+    done
+
+    IFS="$OLD_IFS"
+}
+
+show_groups() {
+    show_db_entries "Groups" "SELECT * FROM \"group\"" "4 4 30 50"
+}
+
+show_adlists() {
+    show_db_entries "Adlists" "SELECT id,address,enabled,datetime(date_added,'unixepoch','localtime') date_added,datetime(date_modified,'unixepoch','localtime') date_modified,comment FROM adlist" "4 100 7 19 19 50"
+    show_db_entries "Adlist groups" "SELECT * FROM adlist_by_group" "4 4"
+}
+
+show_whitelist() {
+    show_db_entries "Exact whitelist" "SELECT id,domain,enabled,datetime(date_added,'unixepoch','localtime') date_added,datetime(date_modified,'unixepoch','localtime') date_modified,comment FROM whitelist" "4 100 7 19 19 50"
+    show_db_entries "Exact whitelist groups" "SELECT * FROM whitelist_by_group" "4 4"
+    show_db_entries "Regex whitelist" "SELECT id,domain,enabled,datetime(date_added,'unixepoch','localtime') date_added,datetime(date_modified,'unixepoch','localtime') date_modified,comment FROM regex_whitelist" "4 100 7 19 19 50"
+    show_db_entries "Regex whitelist groups" "SELECT * FROM regex_whitelist_by_group" "4 4"
+}
+
+show_blacklist() {
+    show_db_entries "Exact blacklist" "SELECT id,domain,enabled,datetime(date_added,'unixepoch','localtime') date_added,datetime(date_modified,'unixepoch','localtime') date_modified,comment FROM blacklist" "4 100 7 19 19 50"
+    show_db_entries "Exact blacklist groups" "SELECT * FROM blacklist_by_group" "4 4"
+    show_db_entries "Regex blacklist" "SELECT id,domain,enabled,datetime(date_added,'unixepoch','localtime') date_added,datetime(date_modified,'unixepoch','localtime') date_modified,comment FROM regex_blacklist" "4 100 7 19 19 50"
+    show_db_entries "Regex blacklist groups" "SELECT * FROM regex_blacklist_by_group" "4 4"
+}
+
+analyze_gravity_list() {
+    echo_current_diagnostic "Gravity List and Database"
+
     local gravity_permissions
-    gravity_permissions=$(ls -ld "${PIHOLE_BLOCKLIST_FILE}")
+    gravity_permissions=$(ls -ld "${PIHOLE_GRAVITY_DB_FILE}")
     log_write "${COL_GREEN}${gravity_permissions}${COL_NC}"
-    local gravity_head=()
-    mapfile -t gravity_head < <(head -n 4 ${PIHOLE_BLOCKLIST_FILE})
-    log_write "   ${COL_CYAN}-----head of $(basename ${PIHOLE_BLOCKLIST_FILE})------${COL_NC}"
-    for head_line in "${gravity_head[@]}"; do
-        log_write "   ${head_line}"
-    done
+
+    local gravity_size
+    gravity_size=$(sqlite3 "${PIHOLE_GRAVITY_DB_FILE}" "SELECT COUNT(*) FROM vw_gravity")
+    log_write "   Size (excluding blacklist): ${COL_CYAN}${gravity_size}${COL_NC} entries"
     log_write ""
-    local gravity_tail=()
-    mapfile -t gravity_tail < <(tail -n 4 ${PIHOLE_BLOCKLIST_FILE})
-    log_write "   ${COL_CYAN}-----tail of $(basename ${PIHOLE_BLOCKLIST_FILE})------${COL_NC}"
-    for tail_line in "${gravity_tail[@]}"; do
-        log_write "   ${tail_line}"
+
+    OLD_IFS="$IFS"
+    IFS=$'\r\n'
+    local gravity_sample=()
+    mapfile -t gravity_sample < <(sqlite3 "${PIHOLE_GRAVITY_DB_FILE}" "SELECT domain FROM vw_gravity LIMIT 10")
+    log_write "   ${COL_CYAN}----- First 10 Domains -----${COL_NC}"
+
+    for line in "${gravity_sample[@]}"; do
+        log_write "   ${line}"
     done
-    # Set the IFS back to what it was
+
+    log_write ""
     IFS="$OLD_IFS"
 }
 
@@ -1236,6 +1300,10 @@ process_status
 parse_setup_vars
 check_x_headers
 analyze_gravity_list
+show_groups
+show_adlists
+show_whitelist
+show_blacklist
 show_content_of_pihole_files
 parse_locale
 analyze_pihole_log
diff --git a/advanced/Scripts/piholeLogFlush.sh b/advanced/Scripts/piholeLogFlush.sh
index 561fbce7..51e94d7c 100755
--- a/advanced/Scripts/piholeLogFlush.sh
+++ b/advanced/Scripts/piholeLogFlush.sh
@@ -39,8 +39,9 @@ if [[ "$@" == *"once"* ]]; then
         # Note that moving the file is not an option, as
         # dnsmasq would happily continue writing into the
         # moved file (it will have the same file handler)
-        cp /var/log/pihole.log /var/log/pihole.log.1
+        cp -p /var/log/pihole.log /var/log/pihole.log.1
         echo " " > /var/log/pihole.log
+        chmod 644 /var/log/pihole.log
     fi
 else
     # Manual flushing
@@ -53,6 +54,7 @@ else
         echo " " > /var/log/pihole.log
         if [ -f /var/log/pihole.log.1 ]; then
             echo " " > /var/log/pihole.log.1
+            chmod 644 /var/log/pihole.log.1
         fi
     fi
     # Delete most recent 24 hours from FTL's database, leave even older data intact (don't wipe out all history)
diff --git a/advanced/Scripts/query.sh b/advanced/Scripts/query.sh
index 2dead97d..1e1b159c 100644
--- a/advanced/Scripts/query.sh
+++ b/advanced/Scripts/query.sh
@@ -11,8 +11,7 @@
 
 # Globals
 piholeDir="/etc/pihole"
-adListsList="$piholeDir/adlists.list"
-wildcardlist="/etc/dnsmasq.d/03-pihole-wildcard.conf"
+gravityDBfile="${piholeDir}/gravity.db"
 options="$*"
 adlist=""
 all=""
@@ -23,27 +22,10 @@ matchType="match"
 colfile="/opt/pihole/COL_TABLE"
 source "${colfile}"
 
-# Print each subdomain
-# e.g: foo.bar.baz.com = "foo.bar.baz.com bar.baz.com baz.com com"
-processWildcards() {
-    IFS="." read -r -a array <<< "${1}"
-    for (( i=${#array[@]}-1; i>=0; i-- )); do
-        ar=""
-        for (( j=${#array[@]}-1; j>${#array[@]}-i-2; j-- )); do
-            if [[ $j == $((${#array[@]}-1)) ]]; then
-                ar="${array[$j]}"
-            else
-                ar="${array[$j]}.${ar}"
-            fi
-        done
-        echo "${ar}"
-    done
-}
-
 # Scan an array of files for matching strings
 scanList(){
     # Escape full stops
-    local domain="${1//./\\.}" lists="${2}" type="${3:-}"
+    local domain="${1}" esc_domain="${1//./\\.}" lists="${2}" type="${3:-}"
 
     # Prevent grep from printing file path
     cd "$piholeDir" || exit 1
@@ -54,9 +36,14 @@ scanList(){
     # /dev/null forces filename to be printed when only one list has been generated
     # shellcheck disable=SC2086
     case "${type}" in
-        "exact" ) grep -i -E "(^|\\s)${domain}($|\\s|#)" ${lists} /dev/null 2>/dev/null;;
-        "wc"    ) grep -i -o -m 1 "/${domain}/" ${lists} 2>/dev/null;;
-        *       ) grep -i "${domain}" ${lists} /dev/null 2>/dev/null;;
+        "exact" ) grep -i -E -l "(^|(?<!#)\\s)${esc_domain}($|\\s|#)" ${lists} /dev/null 2>/dev/null;;
+        # Create array of regexps
+        # Iterate through each regexp and check whether it matches the domainQuery
+        # If it does, print the matching regexp and continue looping
+        # Input 1 - regexps | Input 2 - domainQuery
+        "regex" ) awk 'NR==FNR{regexps[$0];next}{for (r in regexps)if($0 ~ r)print r}' \
+                  <(echo "${lists}") <(echo "${domain}") 2>/dev/null;;
+        *       ) grep -i "${esc_domain}" ${lists} /dev/null 2>/dev/null;;
     esac
 }
 
@@ -73,11 +60,6 @@ Options:
   exit 0
 fi
 
-if [[ ! -e "$adListsList" ]]; then
-    echo -e "${COL_LIGHT_RED}The file $adListsList was not found${COL_NC}"
-    exit 1
-fi
-
 # Handle valid options
 if [[ "${options}" == *"-bp"* ]]; then
     exact="exact"; blockpage=true
@@ -107,49 +89,93 @@ if [[ -n "${str:-}" ]]; then
     exit 1
 fi
 
-# Scan Whitelist and Blacklist
-lists="whitelist.txt blacklist.txt"
-mapfile -t results <<< "$(scanList "${domainQuery}" "${lists}" "${exact}")"
-if [[ -n "${results[*]}" ]]; then
+scanDatabaseTable() {
+    local domain table type querystr result
+    domain="$(printf "%q" "${1}")"
+    table="${2}"
+    type="${3:-}"
+
+    # As underscores are legitimate parts of domains, we escape them when using the LIKE operator.
+    # Underscores are SQLite wildcards matching exactly one character. We obviously want to suppress this
+    # behavior. The "ESCAPE '\'" clause specifies that an underscore preceded by an '\' should be matched
+    # as a literal underscore character. We pretreat the $domain variable accordingly to escape underscores.
+    case "${type}" in
+        "exact" ) querystr="SELECT domain FROM vw_${table} WHERE domain = '${domain}'";;
+        *       ) querystr="SELECT domain FROM vw_${table} WHERE domain LIKE '%${domain//_/\\_}%' ESCAPE '\\'";;
+    esac
+
+    # Send prepared query to gravity database
+    result="$(sqlite3 "${gravityDBfile}" "${querystr}")" 2> /dev/null
+    if [[ -z "${result}" ]]; then
+        # Return early when there are no matches in this table
+        return
+    fi
+
+    # Mark domain as having been white-/blacklist matched (global variable)
     wbMatch=true
-    # Loop through each result in order to print unique file title once
+
+    # Print table name
+    if [[ -z "${blockpage}" ]]; then
+        echo " ${matchType^} found in ${COL_BOLD}${table^}${COL_NC}"
+    fi
+
+    # Loop over results and print them
+    mapfile -t results <<< "${result}"
     for result in "${results[@]}"; do
-        fileName="${result%%.*}"
         if [[ -n "${blockpage}" ]]; then
             echo "π ${result}"
             exit 0
-        elif [[ -n "${exact}" ]]; then
-            echo " ${matchType^} found in ${COL_BOLD}${fileName^}${COL_NC}"
-        else
-            # Only print filename title once per file
-            if [[ ! "${fileName}" == "${fileName_prev:-}" ]]; then
-                echo " ${matchType^} found in ${COL_BOLD}${fileName^}${COL_NC}"
-                fileName_prev="${fileName}"
-            fi
-        echo "   ${result#*:}"
         fi
+        echo "   ${result}"
     done
-fi
+}
 
-# Scan Wildcards
-if [[ -e "${wildcardlist}" ]]; then
-    # Determine all subdomains, domain and TLDs
-    mapfile -t wildcards <<< "$(processWildcards "${domainQuery}")"
-    for match in "${wildcards[@]}"; do
-        # Search wildcard list for matches
-        mapfile -t results <<< "$(scanList "${match}" "${wildcardlist}" "wc")"
-        if [[ -n "${results[*]}" ]]; then
-            if [[ -z "${wcMatch:-}" ]] && [[ -z "${blockpage}" ]]; then
+scanRegexDatabaseTable() {
+    local domain list
+    domain="${1}"
+    list="${2}"
+
+    # Query all regex from the corresponding database tables
+    mapfile -t regexList < <(sqlite3 "${gravityDBfile}" "SELECT domain FROM vw_regex_${list}" 2> /dev/null)
+
+    # If we have regexps to process
+    if [[ "${#regexList[@]}" -ne 0 ]]; then
+        # Split regexps over a new line
+        str_regexList=$(printf '%s\n' "${regexList[@]}")
+        # Check domain against regexps
+        mapfile -t regexMatches < <(scanList "${domain}" "${str_regexList}" "regex")
+        # If there were regex matches
+        if [[  "${#regexMatches[@]}" -ne 0 ]]; then
+            # Split matching regexps over a new line
+            str_regexMatches=$(printf '%s\n' "${regexMatches[@]}")
+            # Form a "matched" message
+            str_message="${matchType^} found in ${COL_BOLD}Regex ${list}${COL_NC}"
+            # Form a "results" message
+            str_result="${COL_BOLD}${str_regexMatches}${COL_NC}"
+            # If we are displaying more than just the source of the block
+            if [[ -z "${blockpage}" ]]; then
+                # Set the wildcard match flag
                 wcMatch=true
-                echo " ${matchType^} found in ${COL_BOLD}Wildcards${COL_NC}:"
+                # Echo the "matched" message, indented by one space
+                echo " ${str_message}"
+                # Echo the "results" message, each line indented by three spaces
+                # shellcheck disable=SC2001
+                echo "${str_result}" | sed 's/^/   /'
+            else
+                echo "π .wildcard"
+                exit 0
             fi
-            case "${blockpage}" in
-                true ) echo "π ${wildcardlist##*/}"; exit 0;;
-                *    ) echo "   *.${match}";;
-            esac
         fi
-    done
-fi
+    fi
+}
+
+# Scan Whitelist and Blacklist
+scanDatabaseTable "${domainQuery}" "whitelist" "${exact}"
+scanDatabaseTable "${domainQuery}" "blacklist" "${exact}"
+
+# Scan Regex table
+scanRegexDatabaseTable "${domainQuery}" "whitelist"
+scanRegexDatabaseTable "${domainQuery}" "blacklist"
 
 # Get version sorted *.domains filenames (without dir path)
 lists=("$(cd "$piholeDir" || exit 0; printf "%s\\n" -- *.domains | sort -V)")
@@ -186,11 +212,8 @@ fi
 
 # Get adlist file content as array
 if [[ -n "${adlist}" ]] || [[ -n "${blockpage}" ]]; then
-    for adlistUrl in $(< "${adListsList}"); do
-        if [[ "${adlistUrl:0:4}" =~ (http|www.) ]]; then
-            adlists+=("${adlistUrl}")
-        fi
-    done
+    # Retrieve source URLs from gravity database
+    mapfile -t adlists <<< "$(sqlite3 "${gravityDBfile}" "SELECT address FROM vw_adlist;" 2> /dev/null)"
 fi
 
 # Print "Exact matches for" title
diff --git a/advanced/Scripts/updatecheck.sh b/advanced/Scripts/updatecheck.sh
index 26dc2ac2..afb03ebb 100755
--- a/advanced/Scripts/updatecheck.sh
+++ b/advanced/Scripts/updatecheck.sh
@@ -51,6 +51,7 @@ if [[ "$2" == "remote" ]]; then
 
     GITHUB_CORE_VERSION="$(json_extract tag_name "$(curl -s 'https://api.github.com/repos/pi-hole/pi-hole/releases/latest' 2> /dev/null)")"
     echo -n "${GITHUB_CORE_VERSION}" > "${GITHUB_VERSION_FILE}"
+    chmod 644 "${GITHUB_VERSION_FILE}"
 
     if [[ "${INSTALL_WEB_INTERFACE}" == true ]]; then
         GITHUB_WEB_VERSION="$(json_extract tag_name "$(curl -s 'https://api.github.com/repos/pi-hole/AdminLTE/releases/latest' 2> /dev/null)")"
@@ -66,6 +67,7 @@ else
 
     CORE_BRANCH="$(get_local_branch /etc/.pihole)"
     echo -n "${CORE_BRANCH}" > "${LOCAL_BRANCH_FILE}"
+    chmod 644 "${LOCAL_BRANCH_FILE}"
 
     if [[ "${INSTALL_WEB_INTERFACE}" == true ]]; then
         WEB_BRANCH="$(get_local_branch /var/www/html/admin)"
@@ -79,6 +81,7 @@ else
 
     CORE_VERSION="$(get_local_version /etc/.pihole)"
     echo -n "${CORE_VERSION}" > "${LOCAL_VERSION_FILE}"
+    chmod 644 "${LOCAL_VERSION_FILE}"
 
     if [[ "${INSTALL_WEB_INTERFACE}" == true ]]; then
         WEB_VERSION="$(get_local_version /var/www/html/admin)"
diff --git a/advanced/Scripts/webpage.sh b/advanced/Scripts/webpage.sh
index dc2c83af..7568d119 100755
--- a/advanced/Scripts/webpage.sh
+++ b/advanced/Scripts/webpage.sh
@@ -19,6 +19,8 @@ readonly dhcpstaticconfig="/etc/dnsmasq.d/04-pihole-static-dhcp.conf"
 readonly PI_HOLE_BIN_DIR="/usr/local/bin"
 readonly dnscustomfile="/etc/pihole/custom.list"
 
+readonly gravityDBfile="/etc/pihole/gravity.db"
+
 coltable="/opt/pihole/COL_TABLE"
 if [[ -f ${coltable} ]]; then
     source ${coltable}
@@ -87,9 +89,9 @@ SetTemperatureUnit() {
 
 HashPassword() {
     # Compute password hash twice to avoid rainbow table vulnerability
-    return=$(echo -n ${1} | sha256sum | sed 's/\s.*$//')
-    return=$(echo -n ${return} | sha256sum | sed 's/\s.*$//')
-    echo ${return}
+    return=$(echo -n "${1}" | sha256sum | sed 's/\s.*$//')
+    return=$(echo -n "${return}" | sha256sum | sed 's/\s.*$//')
+    echo "${return}"
 }
 
 SetWebPassword() {
@@ -143,18 +145,18 @@ ProcessDNSSettings() {
     delete_dnsmasq_setting "server"
 
     COUNTER=1
-    while [[ 1 ]]; do
+    while true ; do
         var=PIHOLE_DNS_${COUNTER}
         if [ -z "${!var}" ]; then
             break;
         fi
         add_dnsmasq_setting "server" "${!var}"
-        let COUNTER=COUNTER+1
+        (( COUNTER++ ))
     done
 
     # The option LOCAL_DNS_PORT is deprecated
     # We apply it once more, and then convert it into the current format
-    if [ ! -z "${LOCAL_DNS_PORT}" ]; then
+    if [ -n "${LOCAL_DNS_PORT}" ]; then
         add_dnsmasq_setting "server" "127.0.0.1#${LOCAL_DNS_PORT}"
         add_setting "PIHOLE_DNS_${COUNTER}" "127.0.0.1#${LOCAL_DNS_PORT}"
         delete_setting "LOCAL_DNS_PORT"
@@ -184,7 +186,7 @@ trust-anchor=.,20326,8,2,E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC68345710423
 
     delete_dnsmasq_setting "host-record"
 
-    if [ ! -z "${HOSTRECORD}" ]; then
+    if [ -n "${HOSTRECORD}" ]; then
         add_dnsmasq_setting "host-record" "${HOSTRECORD}"
     fi
 
@@ -212,6 +214,11 @@ trust-anchor=.,20326,8,2,E06D44B80B8F1D39A95C0B0D7C65D08458E880409BBC68345710423
         add_dnsmasq_setting "server=/${CONDITIONAL_FORWARDING_DOMAIN}/${CONDITIONAL_FORWARDING_IP}"
         add_dnsmasq_setting "server=/${CONDITIONAL_FORWARDING_REVERSE}/${CONDITIONAL_FORWARDING_IP}"
     fi
+
+    # Prevent Firefox from automatically switching over to DNS-over-HTTPS
+    # This follows https://support.mozilla.org/en-US/kb/configuring-networks-disable-dns-over-https
+    # (sourced 7th September 2019)
+    add_dnsmasq_setting "server=/use-application-dns.net/"
 }
 
 SetDNSServers() {
@@ -324,6 +331,7 @@ dhcp-option=option:router,${DHCP_ROUTER}
 dhcp-leasefile=/etc/pihole/dhcp.leases
 #quiet-dhcp
 " > "${dhcpconfig}"
+    chmod 644 "${dhcpconfig}"
 
     if [[ "${PIHOLE_DOMAIN}" != "none" ]]; then
         echo "domain=${PIHOLE_DOMAIN}" >> "${dhcpconfig}"
@@ -395,19 +403,17 @@ SetWebUILayout() {
 }
 
 CustomizeAdLists() {
-    list="/etc/pihole/adlists.list"
+    local address
+    address="${args[3]}"
 
     if [[ "${args[2]}" == "enable" ]]; then
-        sed -i "\\@${args[3]}@s/^#http/http/g" "${list}"
+        sqlite3 "${gravityDBfile}" "UPDATE adlist SET enabled = 1 WHERE address = '${address}'"
     elif [[ "${args[2]}" == "disable" ]]; then
-        sed -i "\\@${args[3]}@s/^http/#http/g" "${list}"
+        sqlite3 "${gravityDBfile}" "UPDATE adlist SET enabled = 0 WHERE address = '${address}'"
     elif [[ "${args[2]}" == "add" ]]; then
-        if [[ $(grep -c "^${args[3]}$" "${list}") -eq 0 ]] ; then
-            echo "${args[3]}" >> ${list}
-        fi
+        sqlite3 "${gravityDBfile}" "INSERT OR IGNORE INTO adlist (address) VALUES ('${address}')"
     elif [[ "${args[2]}" == "del" ]]; then
-        var=$(echo "${args[3]}" | sed 's/\//\\\//g')
-        sed -i "/${var}/Id" "${list}"
+        sqlite3 "${gravityDBfile}" "DELETE FROM adlist WHERE address = '${address}'"
     else
         echo "Not permitted"
         return 1
@@ -519,10 +525,10 @@ Interfaces:
   fi
 
     if [[ "${args[2]}" == "all" ]]; then
-        echo -e "  ${INFO} Listening on all interfaces, permiting all origins. Please use a firewall!"
+        echo -e "  ${INFO} Listening on all interfaces, permitting all origins. Please use a firewall!"
         change_setting "DNSMASQ_LISTENING" "all"
     elif [[ "${args[2]}" == "local" ]]; then
-        echo -e "  ${INFO} Listening on all interfaces, permiting origins from one hop away (LAN)"
+        echo -e "  ${INFO} Listening on all interfaces, permitting origins from one hop away (LAN)"
         change_setting "DNSMASQ_LISTENING" "local"
     else
         echo -e "  ${INFO} Listening only on interface ${PIHOLE_INTERFACE}"
@@ -539,23 +545,50 @@ Interfaces:
 }
 
 Teleporter() {
-    local datetimestamp=$(date "+%Y-%m-%d_%H-%M-%S")
+    local datetimestamp
+    datetimestamp=$(date "+%Y-%m-%d_%H-%M-%S")
     php /var/www/html/admin/scripts/pi-hole/php/teleporter.php > "pi-hole-teleporter_${datetimestamp}.tar.gz"
 }
 
+checkDomain()
+{
+    local domain validDomain
+    # Convert to lowercase
+    domain="${1,,}"
+    validDomain=$(grep -P "^((-|_)*[a-z\\d]((-|_)*[a-z\\d])*(-|_)*)(\\.(-|_)*([a-z\\d]((-|_)*[a-z\\d])*))*$" <<< "${domain}") # Valid chars check
+    validDomain=$(grep -P "^[^\\.]{1,63}(\\.[^\\.]{1,63})*$" <<< "${validDomain}") # Length of each label
+    echo "${validDomain}"
+}
+
 addAudit()
 {
     shift # skip "-a"
     shift # skip "audit"
-    for var in "$@"
+    local domains validDomain
+    domains=""
+    for domain in "$@"
     do
-        echo "${var}" >> /etc/pihole/auditlog.list
+      # Check domain to be added. Only continue if it is valid
+      validDomain="$(checkDomain "${domain}")"
+      if [[ -n "${validDomain}" ]]; then
+        # Put comma in between domains when there is
+        # more than one domains to be added
+        # SQL INSERT allows adding multiple rows at once using the format
+        ## INSERT INTO table (domain) VALUES ('abc.de'),('fgh.ij'),('klm.no'),('pqr.st');
+        if [[ -n "${domains}" ]]; then
+          domains="${domains},"
+        fi
+        domains="${domains}('${domain}')"
+      fi
     done
+    # Insert only the domain here. The date_added field will be
+    # filled with its default value (date_added = current timestamp)
+    sqlite3 "${gravityDBfile}" "INSERT INTO domain_audit (domain) VALUES ${domains};"
 }
 
 clearAudit()
 {
-    echo -n "" > /etc/pihole/auditlog.list
+    sqlite3 "${gravityDBfile}" "DELETE FROM domain_audit;"
 }
 
 SetPrivacyLevel() {
diff --git a/advanced/Templates/gravity.db.sql b/advanced/Templates/gravity.db.sql
new file mode 100644
index 00000000..d0c744f4
--- /dev/null
+++ b/advanced/Templates/gravity.db.sql
@@ -0,0 +1,142 @@
+PRAGMA FOREIGN_KEYS=ON;
+
+CREATE TABLE "group"
+(
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	enabled BOOLEAN NOT NULL DEFAULT 1,
+	name TEXT NOT NULL,
+	description TEXT
+);
+
+CREATE TABLE whitelist
+(
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	domain TEXT UNIQUE NOT NULL,
+	enabled BOOLEAN NOT NULL DEFAULT 1,
+	date_added INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	date_modified INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	comment TEXT
+);
+
+CREATE TABLE whitelist_by_group
+(
+	whitelist_id INTEGER NOT NULL REFERENCES whitelist (id),
+	group_id INTEGER NOT NULL REFERENCES "group" (id),
+	PRIMARY KEY (whitelist_id, group_id)
+);
+
+CREATE TABLE blacklist
+(
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	domain TEXT UNIQUE NOT NULL,
+	enabled BOOLEAN NOT NULL DEFAULT 1,
+	date_added INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	date_modified INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	comment TEXT
+);
+
+CREATE TABLE blacklist_by_group
+(
+	blacklist_id INTEGER NOT NULL REFERENCES blacklist (id),
+	group_id INTEGER NOT NULL REFERENCES "group" (id),
+	PRIMARY KEY (blacklist_id, group_id)
+);
+
+CREATE TABLE regex
+(
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	domain TEXT UNIQUE NOT NULL,
+	enabled BOOLEAN NOT NULL DEFAULT 1,
+	date_added INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	date_modified INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	comment TEXT
+);
+
+CREATE TABLE regex_by_group
+(
+	regex_id INTEGER NOT NULL REFERENCES regex (id),
+	group_id INTEGER NOT NULL REFERENCES "group" (id),
+	PRIMARY KEY (regex_id, group_id)
+);
+
+CREATE TABLE adlist
+(
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	address TEXT UNIQUE NOT NULL,
+	enabled BOOLEAN NOT NULL DEFAULT 1,
+	date_added INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	date_modified INTEGER NOT NULL DEFAULT (cast(strftime('%s', 'now') as int)),
+	comment TEXT
+);
+
+CREATE TABLE adlist_by_group
+(
+	adlist_id INTEGER NOT NULL REFERENCES adlist (id),
+	group_id INTEGER NOT NULL REFERENCES "group" (id),
+	PRIMARY KEY (adlist_id, group_id)
+);
+
+CREATE TABLE gravity
+(
+	domain TEXT PRIMARY KEY
+);
+
+CREATE TABLE info
+(
+	property TEXT PRIMARY KEY,
+	value TEXT NOT NULL
+);
+
+INSERT INTO info VALUES("version","1");
+
+CREATE VIEW vw_whitelist AS SELECT DISTINCT domain
+    FROM whitelist
+    LEFT JOIN whitelist_by_group ON whitelist_by_group.whitelist_id = whitelist.id
+    LEFT JOIN "group" ON "group".id = whitelist_by_group.group_id
+    WHERE whitelist.enabled = 1 AND (whitelist_by_group.group_id IS NULL OR "group".enabled = 1)
+    ORDER BY whitelist.id;
+
+CREATE TRIGGER tr_whitelist_update AFTER UPDATE ON whitelist
+    BEGIN
+      UPDATE whitelist SET date_modified = (cast(strftime('%s', 'now') as int)) WHERE domain = NEW.domain;
+    END;
+
+CREATE VIEW vw_blacklist AS SELECT DISTINCT domain
+    FROM blacklist
+    LEFT JOIN blacklist_by_group ON blacklist_by_group.blacklist_id = blacklist.id
+    LEFT JOIN "group" ON "group".id = blacklist_by_group.group_id
+    WHERE blacklist.enabled = 1 AND (blacklist_by_group.group_id IS NULL OR "group".enabled = 1)
+    ORDER BY blacklist.id;
+
+CREATE TRIGGER tr_blacklist_update AFTER UPDATE ON blacklist
+    BEGIN
+      UPDATE blacklist SET date_modified = (cast(strftime('%s', 'now') as int)) WHERE domain = NEW.domain;
+    END;
+
+CREATE VIEW vw_regex AS SELECT DISTINCT domain
+    FROM regex
+    LEFT JOIN regex_by_group ON regex_by_group.regex_id = regex.id
+    LEFT JOIN "group" ON "group".id = regex_by_group.group_id
+    WHERE regex.enabled = 1 AND (regex_by_group.group_id IS NULL OR "group".enabled = 1)
+    ORDER BY regex.id;
+
+CREATE TRIGGER tr_regex_update AFTER UPDATE ON regex
+    BEGIN
+      UPDATE regex SET date_modified = (cast(strftime('%s', 'now') as int)) WHERE domain = NEW.domain;
+    END;
+
+CREATE VIEW vw_adlist AS SELECT DISTINCT address
+    FROM adlist
+    LEFT JOIN adlist_by_group ON adlist_by_group.adlist_id = adlist.id
+    LEFT JOIN "group" ON "group".id = adlist_by_group.group_id
+    WHERE adlist.enabled = 1 AND (adlist_by_group.group_id IS NULL OR "group".enabled = 1)
+    ORDER BY adlist.id;
+
+CREATE TRIGGER tr_adlist_update AFTER UPDATE ON adlist
+    BEGIN
+      UPDATE adlist SET date_modified = (cast(strftime('%s', 'now') as int)) WHERE address = NEW.address;
+    END;
+
+CREATE VIEW vw_gravity AS SELECT domain
+    FROM gravity
+    WHERE domain NOT IN (SELECT domain from vw_whitelist);
diff --git a/advanced/bash-completion/pihole b/advanced/bash-completion/pihole
index 7ba0dad8..cea36060 100644
--- a/advanced/bash-completion/pihole
+++ b/advanced/bash-completion/pihole
@@ -7,7 +7,7 @@ _pihole() {
 
 	case "${prev}" in
 		"pihole")
-			opts="admin blacklist checkout chronometer debug disable enable flush help logging query reconfigure regex restartdns status tail uninstall updateGravity updatePihole version wildcard whitelist"
+			opts="admin blacklist checkout chronometer debug disable enable flush help logging query reconfigure regex restartdns status tail uninstall updateGravity updatePihole version wildcard whitelist arpflush"
 			COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
 		;;
 		"whitelist"|"blacklist"|"wildcard"|"regex")
diff --git a/advanced/index.php b/advanced/index.php
index 78135e1a..62e45091 100644
--- a/advanced/index.php
+++ b/advanced/index.php
@@ -102,20 +102,30 @@ if ($blocklistglob === array()) {
     die("[ERROR] There are no domain lists generated lists within <code>/etc/pihole/</code>! Please update gravity by running <code>pihole -g</code>, or repair Pi-hole using <code>pihole -r</code>.");
 }
 
-// Set location of adlists file
-if (is_file("/etc/pihole/adlists.list")) {
-    $adLists = "/etc/pihole/adlists.list";
-} elseif (is_file("/etc/pihole/adlists.default")) {
-    $adLists = "/etc/pihole/adlists.default";
+// Get possible non-standard location of FTL's database
+$FTLsettings = parse_ini_file("/etc/pihole/pihole-FTL.conf");
+if (isset($FTLsettings["GRAVITYDB"])) {
+    $gravityDBFile = $FTLsettings["GRAVITYDB"];
 } else {
-    die("[ERROR] File not found: <code>/etc/pihole/adlists.list</code>");
+    $gravityDBFile = "/etc/pihole/gravity.db";
 }
 
-// Get all URLs starting with "http" or "www" from adlists and re-index array numerically
-$adlistsUrls = array_values(preg_grep("/(^http)|(^www)/i", file($adLists, FILE_IGNORE_NEW_LINES)));
+// Connect to gravity.db
+try {
+    $db = new SQLite3($gravityDBFile, SQLITE3_OPEN_READONLY);
+} catch (Exception $exception) {
+    die("[ERROR]: Failed to connect to gravity.db");
+}
+
+// Get all adlist addresses
+$adlistResults = $db->query("SELECT address FROM vw_adlist");
+$adlistsUrls = array();
+while ($row = $adlistResults->fetchArray()) {
+    array_push($adlistsUrls, $row[0]);
+}
 
 if (empty($adlistsUrls))
-    die("[ERROR]: There are no adlist URL's found within <code>$adLists</code>");
+    die("[ERROR]: There are no adlists enabled");
 
 // Get total number of blocklists (Including Whitelist, Blacklist & Wildcard lists)
 $adlistsCount = count($adlistsUrls) + 3;