mirror of
https://github.com/pi-hole/pi-hole.git
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122 lines
3.9 KiB
Bash
Executable file
122 lines
3.9 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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# Flushes Pi-hole's log file
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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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colfile="/opt/pihole/COL_TABLE"
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source ${colfile}
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readonly PI_HOLE_SCRIPT_DIR="/opt/pihole"
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utilsfile="${PI_HOLE_SCRIPT_DIR}/utils.sh"
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source "${utilsfile}"
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# In case we're running at the same time as a system logrotate, use a
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# separate logrotate state file to prevent stepping on each other's
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# toes.
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STATEFILE="/var/lib/logrotate/pihole"
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# Determine database location
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DBFILE=$(getFTLConfigValue "files.database")
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if [ -z "$DBFILE" ]; then
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DBFILE="/etc/pihole/pihole-FTL.db"
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fi
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# Determine log file location
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LOGFILE=$(getFTLConfigValue "files.log.dnsmasq")
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if [ -z "$LOGFILE" ]; then
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LOGFILE="/var/log/pihole/pihole.log"
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fi
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FTLFILE=$(getFTLConfigValue "files.log.ftl")
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if [ -z "$FTLFILE" ]; then
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FTLFILE="/var/log/pihole/FTL.log"
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fi
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if [[ "$*" == *"once"* ]]; then
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# Nightly logrotation
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if command -v /usr/sbin/logrotate >/dev/null; then
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# Logrotate once
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if [[ "$*" != *"quiet"* ]]; then
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echo -ne " ${INFO} Running logrotate ..."
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fi
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/usr/sbin/logrotate --force --state "${STATEFILE}" /etc/pihole/logrotate
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else
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# Copy pihole.log over to pihole.log.1
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# and empty out pihole.log
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# Note that moving the file is not an option, as
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# dnsmasq would happily continue writing into the
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# moved file (it will have the same file handler)
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if [[ "$*" != *"quiet"* ]]; then
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echo -ne " ${INFO} Rotating ${LOGFILE} ..."
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fi
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cp -p "${LOGFILE}" "${LOGFILE}.1"
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echo " " > "${LOGFILE}"
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chmod 640 "${LOGFILE}"
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if [[ "$*" != *"quiet"* ]]; then
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echo -e "${OVER} ${TICK} Rotated ${LOGFILE} ..."
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fi
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# Copy FTL.log over to FTL.log.1
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# and empty out FTL.log
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if [[ "$*" != *"quiet"* ]]; then
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echo -ne " ${INFO} Rotating ${FTLFILE} ..."
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fi
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cp -p "${FTLFILE}" "${FTLFILE}.1"
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echo " " > "${FTLFILE}"
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chmod 640 "${FTLFILE}"
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if [[ "$*" != *"quiet"* ]]; then
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echo -e "${OVER} ${TICK} Rotated ${FTLFILE} ..."
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fi
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fi
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else
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# Manual flushing
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# Flush both pihole.log and pihole.log.1 (if existing)
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if [[ "$*" != *"quiet"* ]]; then
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echo -ne " ${INFO} Flushing ${LOGFILE} ..."
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fi
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echo " " > "${LOGFILE}"
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chmod 640 "${LOGFILE}"
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if [ -f "${LOGFILE}.1" ]; then
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echo " " > "${LOGFILE}.1"
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chmod 640 "${LOGFILE}.1"
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fi
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if [[ "$*" != *"quiet"* ]]; then
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echo -e "${OVER} ${TICK} Flushed ${LOGFILE} ..."
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fi
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# Flush both FTL.log and FTL.log.1 (if existing)
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if [[ "$*" != *"quiet"* ]]; then
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echo -ne " ${INFO} Flushing ${FTLFILE} ..."
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fi
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echo " " > "${FTLFILE}"
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chmod 640 "${FTLFILE}"
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if [ -f "${FTLFILE}.1" ]; then
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echo " " > "${FTLFILE}.1"
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chmod 640 "${FTLFILE}.1"
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fi
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if [[ "$*" != *"quiet"* ]]; then
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echo -e "${OVER} ${TICK} Flushed ${FTLFILE} ..."
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fi
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if [[ "$*" != *"quiet"* ]]; then
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echo -ne " ${INFO} Flushing database, DNS resolution temporarily unavailable ..."
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fi
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# Stop FTL to make sure it doesn't write to the database while we're deleting data
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service pihole-FTL stop
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# Delete most recent 24 hours from FTL's database, leave even older data intact (don't wipe out all history)
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deleted=$(pihole-FTL sqlite3 -ni "${DBFILE}" "DELETE FROM query_storage WHERE timestamp >= strftime('%s','now')-86400; select changes() from query_storage limit 1")
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# Restart FTL
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service pihole-FTL restart
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if [[ "$*" != *"quiet"* ]]; then
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echo -e "${OVER} ${TICK} Deleted ${deleted} queries from long-term query database"
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fi
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fi
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