Create pihole-gemini_master_active_script
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kodlz
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275
pihole-gemini_master_active_script
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275
pihole-gemini_master_active_script
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#! /bin/bash
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# Script was last updated 03-12-2019
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SCRIPTVER="pihole-gemini v0.0.2.2a"
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# --------------------------------------------------------------------------------------------------------
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# This script was written to try and keep the white and black lists in sync between two Pi-holes.
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# The script should be launched from /opt/pihole/gravity.sh
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# It should be called in the second to last line of the gravity.sh file and should be run as the user
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# configured for the sync process. In my case, I'm using user pi, so you would change the user from 'pi'
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# to the username you're using to sync the files (the user you're assigning to HAUSER in this script.)
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# Example of the line to add as the second to last line of the /opt/pihole/gravity.sh file:
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# su -c '/usr/local/bin/pihole-gemini' - pi
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# In the above example, you change the 'pi' at the end to your sync user, and it should appear directly
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# above the line that reads:
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# "${PIHOLE_COMMAND}" status
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# in the /opt/pihole/gravity.sh file.
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# --------------------------------------------------------------------------------------------------------
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# USER-DEFINED VARIABLES - START - Edit the values in this section to configure the script to your install.
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# User account - Should have sudo and ssh access, and a "matching" account should be set up on both Pi-hole systems
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HAUSER=pi
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# Pi-hole directory (this path is expected to be the same on both Pi-holes, and should be where the FILES are located)
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PIHOLEDIR=/etc/pihole
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# IP Addresses - Note that removing the value or the variable definition of either SSHPORT will cause the script to
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# use the default SSH Port of 22 for connections to that ip address.
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# Primary Pi-hole ip and ssh port
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PIHOLE1=192.168.1.11
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SSHPORT1=22
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# Secondary Pi-hole ip and ssh port
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PIHOLE2=192.168.1.12
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SSHPORT2=22
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# Define the local path to store the logfile, DO NOT include a trailing "/". Make sure this path is writeable by the user
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# that runs the sync. Change this from /tmp to another folder to prevent logs from being cleared on system restart
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LOGFILEPATH="/tmp"
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# How long to keep old log files (in addition to the current day's log, so a value of 6 means 7 days)
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LOGKEEPDAYS=6
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# USER-DEFINED VARIABLES - END - Edits made below this line may break the script.
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# ---------------------------------------------------------------------------------------------------------
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# SCRIPT VARIABLES - START - These values are used by the script and should not be changed manually.
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# List of files to sync
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FILES=(
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'black.list'
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'blacklist.txt'
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'regex.list'
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'whitelist.txt'
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'lan.list'
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'adlists.list'
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'gravity.list'
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)
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# Full logfile path and name, uncluding timestamp
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LOGFILE="${LOGFILEPATH}/pihole-gemini_`date +\%Y\%m\%d`.log"
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# Flags used to determine script blocks to run.
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# RUNUPDATE - 0 = Don't update; 1 = update Pi-holes
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RUNUPDATE=0
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# RESTART - 0 = Don't restart; 1 = restart
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RESTART=0
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# RUNGRAVITY - 0 = Don't update gravity; 1 = Update gravity (don't download lists)
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RUNGRAVITY=0
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# DEFAULT SSHPORT - This value is only provided here to use the default port of 22 if a port is not defined for the specified ip address
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DEFAULTSSHPORT=22
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# INITIALIZE PORT VARIABLES - This segment keeps the SSHPORT variables as set in the user-defined variables section. They are included here
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# mainly as a fallback in case the variables are accidentally removed from the user-defined variables section.
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SSHPORT1=$SSHPORT1
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SSHPORT2=$SSHPORT2
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# DETERMINE IP AND PORTS TO USE - START
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# This section checks the interface used to connect to the local gateway, then determines the current ip address
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# based on that interface. Finally, it checks the current ip address against the two addresses the script has
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# configured to determine which one is the remote Pi-hole to send commands to, and configures the appropriate port.
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LOCALIP=$PIHOLE1
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case $LOCALIP in
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$PIHOLE1)
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# echo "Local ip address matches PIHOLE1 ip, so the remote Pi-hole is PIHOLE2."
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REMOTEPI=$PIHOLE2
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if [ -z $SSHPORT2 ]; then
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# SSHPORT2 value is empty, use the default ssh port.
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SSHPORT=$DEFAULTSSHPORT
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else
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# SSHPORT2 value exists, use that for connections to PIHOLE2.
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SSHPORT=$SSHPORT2
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fi
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;;
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$PIHOLE2)
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# echo "Local ip address matches PIHOLE2 ip, so the remote Pi-hole is PIHOLE1."
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REMOTEPI=$PIHOLE1
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if [ -z $SSHPORT1 ]; then
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# SSHPORT1 value is empty, use the default ssh port.
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SSHPORT=$DEFAULTSSHPORT
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else
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# SSHPORT1 value exists, use that for connections to PIHOLE1.
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SSHPORT=$SSHPORT1
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fi
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;;
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*)
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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echo "* `date '+%Y-%m-%d %H:%M:%S'` - ERROR! - $SCRIPTVER was unable to determine the local ip address." 2>&1 | tee -a $LOGFILE
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echo " This is a fatal error. Script can not continue. Please check your" 2>&1 | tee -a $LOGFILE
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echo " configuration for the script, and make sure you are connected to" 2>&1 | tee -a $LOGFILE
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echo " your router and have an ip address assigned." 2>&1 | tee -a $LOGFILE
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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REMOTEPI="Unknown"
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exit 1
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;;
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esac
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# DETERMINE IP AND PORTS TO USE - END
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# SCRIPT VARIABLES - END
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# LOG HEADER START - The following echo commands are for formatting purposes in the log file.
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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echo "`date '+%Y-%m-%d %H:%M:%S'` - $SCRIPTVER was successfully launched as user: $USER" 2>&1 | tee -a $LOGFILE
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echo " $LOCALIP is updating Pi-hole on $REMOTEPI"
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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# LOG HEADER - END
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# SSH CONNECTION TEST - START
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Testing SSH Connection to $HAUSER@$REMOTEPI. Please wait." 2>&1 | tee -a $LOGFILE
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ssh -q -p $SSHPORT $HAUSER@$REMOTEPI exit
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SSHSTATUS=$?
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if [ $SSHSTATUS -eq 0 ]; then
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# SSH is up
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echo "`date '+%Y-%m-%d %H:%M:%S'` - SSH Connection to $HAUSER@$REMOTEPI was tested successfully." 2>&1 | tee -a $LOGFILE
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RUNUPDATE=1
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else
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# SSH is down
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echo "* `date '+%Y-%m-%d %H:%M:%S'` - ERROR! Unable to establish SSH connection as $HAUSER@$REMOTEPI on port $SSHPORT." 2>&1 | tee -a $LOGFILE
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echo "* This is a fatal error as SSH is required for this script. Unable to update $REMOTEPI on port $SSHPORT." 2>&1 | tee -a $LOGFILE
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echo "* $REMOTEPI may be offline, you may have specified the wrong port, or you have not correctly configured your SSH keys." 2>&1 | tee -a $LOGFILE
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echo "* $REMOTEPI has NOT been updated."
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RUNUPDATE=0
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fi
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# SSH CONNECTION TEST - END
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# UPDATE REMOTE PIHOLE - START
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if [ $RUNUPDATE -eq 1 ]; then
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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# FILE SYNC - START - This section handles compares the local and remote versions of the files specified in the $FILES variable
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# and updates the remote files if neccesary.
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for FILE in ${FILES[@]}
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do
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if [[ -f $PIHOLEDIR/$FILE ]]; then
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Comparing local to remote $FILE and updating if neccesary." 2>&1 | tee -a $LOGFILE
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RSYNC_COMMAND=$(rsync --rsync-path='/usr/bin/sudo /usr/bin/rsync' -aiu -e "ssh -l $HAUSER@$REMOTEPI -p$SSHPORT" $PIHOLEDIR/$FILE $HAUSER@$REMOTEPI:$PIHOLEDIR)
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if [[ -n "${RSYNC_COMMAND}" ]]; then
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# rsync copied changes so restart
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case $FILE in
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adlists.list)
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# Updating adlists.list requires only a gravity update
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Updated $FILE on $REMOTEPI. Gravity will be updated on $REMOTEPI." 2>&1 | tee -a $LOGFILE
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RUNGRAVITY=1
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;;
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gravity.list)
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# Updating gravity.list requires only a gravity update
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Updated $FILE on $REMOTEPI. Gravity will be updated on $REMOTEPI." 2>&1 | tee -a $LOGFILE
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RUNGRAVITY=1
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;;
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*)
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# Updating white and/or black lists (or other files) requires a remote restart but not a gravity update
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Updated $FILE on $REMOTEPI. $REMOTEPI will be restarted." 2>&1 | tee -a $LOGFILE
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RESTART=1
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;;
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esac
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else
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# no changes so do nothing
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Local file $FILE matches $FILE on $REMOTEPI. Remote file was not updated." 2>&1 | tee -a $LOGFILE
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fi
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else
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# file does not exist, skipping
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Local file $FILE does not exist. Skipping." 2>&1 | tee -a $LOGFILE
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fi
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done
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# FILE SYNC - END
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# RESTART REMOTEPI (IF NEEDED) - START
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if [ $RESTART -eq 1 ]; then
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Updated files have been copied to $REMOTEPI. Restarting..." 2>&1 | tee -a $LOGFILE
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Sending restart command to pihole-FTL on $REMOTEPI." 2>&1 | tee -a $LOGFILE
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ssh $HAUSER@$REMOTEPI -p $SSHPORT "sudo -S service pihole-FTL restart"
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if [ $? -ne 0 ]; then
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echo "* `date '+%Y-%m-%d %H:%M:%S'` - ERROR! - Unable to restart pihole-FTL service on $REMOTEPI." 2>&1 | tee -a $LOGFILE
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else
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Successfully restarted pihole-FTL service on $REMOTEPI." 2>&1 | tee -a $LOGFILE
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fi
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fi
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# RESTART REMOTEPI - END
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# UPDATE REMOTE GRAVITY (IF NEEDED) - START
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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case $RUNGRAVITY in
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0)
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# Gravity did not need updating - do nothing
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Gravity on $REMOTEPI did not need updating." 2>&1 | tee -a $LOGFILE
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;;
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1)
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# Gravity needs refreshing, but not a full update - Update gravity without redownloading lists
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Refreshing gravity on $REMOTEPI. Lists will not be redownloaded." 2>&1 | tee -a $LOGFILE
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ssh $HAUSER@$REMOTEPI -p $SSHPORT "sudo -S pihole -g --skip-download"
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if [ $? -ne 0 ]; then
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echo "* `date '+%Y-%m-%d %H:%M:%S'` - ERROR! - Unable to refresh gravity on $REMOTEPI." 2>&1 | tee -a $LOGFILE
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else
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Success! Successfully refreshed gravity on $REMOTEPI." 2>&1 | tee -a $LOGFILE
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fi
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;;
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esac
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# UPDATE REMOTE GRAVITY - END
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# CLEAN OLD LOG FILES - START
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# Check the LOGFILEPATH for outdated log files and delete old logs
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Checking ${LOGFILEPATH} for outdated log files." 2>&1 | tee -a $LOGFILE
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look_in="${LOGFILEPATH}/pihole-gemini_*.log"
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del_file=`find $look_in ! -wholename $LOGFILE -daystart -mtime +$LOGKEEPDAYS`
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if [ -z "$del_file" ]; then
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echo "`date '+%Y-%m-%d %H:%M:%S'` - There were no outdated log files to remove." 2>&1 | tee -a $LOGFILE
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else
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Outdated log file(s) found. Removing..." 2>&1 | tee -a $LOGFILE
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sudo find $look_in ! -wholename $LOGFILE -daystart -mtime +$LOGKEEPDAYS -prune -exec rm -rv "{}" \;
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if [ $? -ne 0 ]; then
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echo "`date '+%Y-%m-%d %H:%M:%S'` - ERROR! Unable to remove outdated log files from $LOGFILEPATH." 2>&1 | tee -a $LOGFILE
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else
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echo "`date '+%Y-%m-%d %H:%M:%S'` - Outdated log files successfully cleaned." 2>&1 | tee -a $LOGFILE
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fi
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fi
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# CLEAN OLD LOG FILES - END
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fi
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# UPDATE REMOTE PIHOLE - END
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# LOG FOOTER - START
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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echo "`date '+%Y-%m-%d %H:%M:%S'` - $SCRIPTVER completed update of $REMOTEPI from $LOCALIP." 2>&1 | tee -a $LOGFILE
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echo "--------------------------------------------------------------------------------------------" 2>&1 | tee -a $LOGFILE
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# LOG FOOTER - END
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# END OF SCRIPT
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