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Another init script
git-svn-id: http://svn.code.sf.net/p/davmail/code/trunk@1778 3d1905a2-6b24-0410-a738-b14d5a86fcbd
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src/contribs/init/davmail-init
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src/contribs/init/davmail-init
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#!/bin/bash
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#
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# chkconfig: 345 99 05
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# # description: Java deamon script for davmail (http://davmail.sourceforge.net/) write by qk4l@tem4uk.ru 2011
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#
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# Derived from -
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# Home page: http://www.source-code.biz
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# License: GNU/LGPL (http://www.gnu.org/licenses/lgpl.html)
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# Copyright 2006 Christian d'Heureuse, Inventec Informatik AG, Switzerland.
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#
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# History:
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# 2010-09-21 Josh Davis: Changed 'sudo' to 'su', fix some typos, removed unused variables
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# 2009-03-04 Josh Davis: Ubuntu/Redhat version.
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# 2006-06-27 Christian d'Heureuse: Script created.
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# 2006-07-02 chdh: Minor improvements.
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# 2006-07-10 chdh: Changes for SUSE 10.0.
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# Set this to your Java installation
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serviceNameLo="davmail" # service name with the first letter in lowercase
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serviceName="Davmail" # service name
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serviceUser="davmail" # OS user name for the service
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serviceGroup="root" # OS group name for the service
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applDir="/usr/share/$serviceNameLo/lib" # home directory of the service application
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serviceUserHome="/etc/$serviceNameLo" # home directory of the service user
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serviceLogFile="/var/log/$serviceNameLo.log" # log file for StdOut/StdErr
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maxShutdownTime=15 # maximum number of seconds to wait for the daemon to terminate normally
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pidFile="/var/run/$serviceNameLo.pid" # name of PID file (PID = process ID number)
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javaCommand="java" # name of the Java launcher without the path
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javaExe="/usr/bin/$javaCommand -Xmx512M" # file name of the Java application launcher executable
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javaCommandLineKeyword="davmail.jar" # a keyword that occurs on the commandline, used to detect an already running service process and to distinguish it from others
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DAEMON_ARGS="/etc/davmail/davmail.properties"
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# Makes the file $1 writable by the group $serviceGroup.
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function makeFileWritable {
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local filename="$1"
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touch $filename || return 1
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chown $serviceUser:$serviceGroup $filename || return 1
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#chgrp $serviceGroup $filename || return 1
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chmod g+w $filename || return 1
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return 0; }
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# Returns 0 if the process with PID $1 is running.
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function checkProcessIsRunning {
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local pid="$1"
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if [ -z "$pid" -o "$pid" == " " ]; then return 1; fi
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if [ ! -e /proc/$pid ]; then return 1; fi
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return 0; }
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# Returns 0 if the process with PID $1 is our Java service process.
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function checkProcessIsOurService {
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local pid="$1"
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if [ "$(ps -p $pid --no-headers -o comm)" != "$javaCommand" ]; then return 1; fi
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grep -q --binary -F "$javaCommandLineKeyword" /proc/$pid/cmdline
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if [ $? -ne 0 ]; then return 1; fi
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return 0; }
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# Returns 0 when the service is running and sets the variable $pid to the PID.
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function getServicePID {
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if [ ! -f $pidFile ]; then return 1; fi
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pid="$(<$pidFile)"
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checkProcessIsRunning $pid || return 1
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checkProcessIsOurService $pid || return 1
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return 0; }
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function startServiceProcess {
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cd $applDir || return 1
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rm -f $pidFile
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makeFileWritable $pidFile || return 1
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makeFileWritable $serviceLogFile || return 1
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for i in $applDir/*; do export CLASSPATH=$CLASSPATH:$i; done
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cmd="nohup $javaExe -cp /usr/share/davmail/davmail.jar:$CLASSPATH davmail.DavGateway $DAEMON_ARGS >>$serviceLogFile 2>&1 & echo \$! >$pidFile"
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#echo $cmd
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su -m $serviceUser -s $SHELL -c "$cmd" || return 1
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sleep 0.1
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pid="$(<$pidFile)"
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if checkProcessIsRunning $pid; then :; else
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echo -ne "\n$serviceName start failed, see logfile."
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return 1
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fi
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return 0; }
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function stopServiceProcess {
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kill $pid || return 1
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for ((i=0; i<maxShutdownTime*10; i++)); do
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checkProcessIsRunning $pid
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if [ $? -ne 0 ]; then
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rm -f $pidFile
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return 0
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fi
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sleep 0.1
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done
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echo -e "\n$serviceName did not terminate within $maxShutdownTime seconds, sending SIGKILL..."
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kill -s KILL $pid || return 1
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local killWaitTime=15
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for ((i=0; i<killWaitTime*10; i++)); do
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checkProcessIsRunning $pid
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if [ $? -ne 0 ]; then
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rm -f $pidFile
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return 0
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fi
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sleep 0.1
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done
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echo "Error: $serviceName could not be stopped within $maxShutdownTime+$killWaitTime seconds!"
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return 1; }
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function startService {
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getServicePID
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if [ $? -eq 0 ]; then echo -n "$serviceName is already running"; RETVAL=0; return 0; fi
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echo -n "Starting $serviceName "
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startServiceProcess
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if [ $? -ne 0 ]; then RETVAL=1; echo "failed"; return 1; fi
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echo "started PID=$pid"
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RETVAL=0
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return 0; }
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function stopService {
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getServicePID
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if [ $? -ne 0 ]; then echo -n "$serviceName is not running"; RETVAL=0; echo ""; return 0; fi
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echo -n "Stopping $serviceName "
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stopServiceProcess
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if [ $? -ne 0 ]; then RETVAL=1; echo "failed"; return 1; fi
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echo "stopped PID=$pid"
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RETVAL=0
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return 0; }
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function checkServiceStatus {
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echo -n "Checking for $serviceName: "
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if getServicePID; then
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echo "running PID=$pid"
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RETVAL=0
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else
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echo "stopped"
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RETVAL=3
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fi
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return 0; }
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function main {
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RETVAL=0
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case "$1" in
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start) # starts the Java program as a Linux service
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startService
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;;
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stop) # stops the Java program service
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stopService
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;;
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restart) # stops and restarts the service
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stopService && startService
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;;
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status) # displays the service status
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checkServiceStatus
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;;
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*)
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echo "Usage: $0 {start|stop|restart|status}"
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exit 1
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;;
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esac
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exit $RETVAL
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}
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main $1
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