#!/bin/bash
#
# /etc/init.d/tomcat4 -- startup script for the Tomcat 4 servlet engine
#
# Written by Miquel van Smoorenburg <miquels@cistron.nl>.
# Modified for Debian GNU/Linux	by Ian Murdock <imurdock@gnu.ai.mit.edu>.
# Modified for Tomcat by Stefan Gybas <sgybas@debian.org>.

# Note, lots of bashisms used here, don't change to /bin/sh !

set -e

PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
NAME=tomcat4
DESC="Tomcat 4.1 servlet engine"
CATALINA_HOME=/usr/share/$NAME
DAEMON=$CATALINA_HOME/bin/catalina.sh
DEFAULT=/etc/default/$NAME

# The following variables can be overwritten in $DEFAULT

# Run Tomcat 4 as this user ID
TOMCAT4_USER=tomcat4

# The first existing directory is used for JAVA_HOME (if JAVA_HOME is not
# defined in $DEFAULT)
JDK_DIRS="/usr/lib/j2sdk1.4-sun /usr/lib/j2sdk1.4-ibm /usr/lib/j2sdk1.3-ibm /usr/lib/j2sdk1.4 /usr/lib/j2sdk1.3 /usr/lib/j2se/1.4 /usr/lib/j2se/1.3 /usr/lib/kaffe"

# Directory for per-instance configuration files and webapps
CATALINA_BASE=/var/lib/tomcat4

# Use the Java security manager? (yes/no)
TOMCAT4_SECURITY=yes

# Timeout in seconds for the shutdown of all webapps
TOMCAT4_SHUTDOWN=30

# End of variables that can be overwritten in $DEFAULT

# overwrite settings from default file
if [ -f "$DEFAULT" ]; then
	. "$DEFAULT"
fi

test -f $DAEMON || exit 0

if [ `id -u` -ne 0 ]; then
	echo "Not starting/stopping $DESC, you are not root."
	exit 4
fi

if [ -z "$TOMCAT4_USER" ]; then
	echo "Not starting/stopping $DESC as configured (TOMCAT4_USER is"
	echo "empty in $DEFAULT)."
	exit 0
fi

# Look for the right JVM to use
for jdir in $JDK_DIRS; do
	if [ -r "$jdir/bin/java" -a -z "${JAVA_HOME}" ]; then
		JAVA_HOME="$jdir"
	fi
done
export JAVA_HOME

# If the architecture is powerpc, set the JITC_PROCESSOR_TYPE
if [ $(dpkg --print-architecture) = powerpc ] ; then
  export JITC_PROCESSOR_TYPE=6
fi

# Set java.awt.headless=true if CATALINA_OPTS is not set so the
# Xalan XSL transformer can work without X11 display on JDK 1.4+
# It also looks like the default heap size of 64M is not enough for most cases
# se the maximum heap size is set to 128M
if [ -z "$CATALINA_OPTS" ]; then
	CATALINA_OPTS="-Djava.awt.headless=true -Xmx128M"
fi

# Set the JSP compiler to if we are using Kaffe and it is not set
if [ -z "$JSP_COMPILER" -a "$JAVA_HOME" = "/usr/lib/kaffe" ]; then
	JSP_COMPILER=jikes
fi
if [ -n "$JSP_COMPILER" ]; then
	CATALINA_OPTS="$CATALINA_OPTS -Dbuild.compiler=$JSP_COMPILER"
fi

# Define other required variables
CATALINA_PID="$CATALINA_BASE/temp/$NAME.pid"
STARTUP_OPTS=""
if [ "$TOMCAT4_SECURITY" = "yes" ]; then
	STARTUP_OPTS="-security"
fi

# Look for Java Secure Sockets Extension (JSSE) JARs
if [ -z "${JSSE_HOME}" -a -r "${JAVA_HOME}/jre/lib/jsse.jar" ]; then
    JSSE_HOME="${JAVA_HOME}/jre/"
fi

export CATALINA_HOME CATALINA_BASE CATALINA_OPTS CATALINA_PID JSSE_HOME

case "$1" in
  start)
	if [ -z "$JAVA_HOME" ]; then
		echo "Could not start $DESC because no Java Development Kit"
		echo "(JDK) was found. Please download and install JDK 1.3 or higher and set"
		echo "JAVA_HOME in $DEFAULT to the JDK's installation directory."
		exit 0
	fi

	if [ ! -d "$CATALINA_BASE/conf" ]; then
		echo "Not starting Tomcat 4.1: Invalid CATALINA_BASE specified in $DEFAULT"
		exit 1
	fi

	echo -n "Starting $DESC using Java from $JAVA_HOME: "

	if start-stop-daemon --test --start --pidfile "$CATALINA_PID" \
		--user $TOMCAT4_USER --startas "$JAVA_HOME/bin/java" \
		>/dev/null; then

		# Create catalina.policy (for the security manager)
		rm -f "$CATALINA_BASE/conf/catalina.policy"
		umask 022
		echo "// AUTO-GENERATED FILE -- DO NOT EDIT!" \
			> "$CATALINA_BASE/conf/catalina.policy"
		echo "// Edit the files in /etc/tomcat4/policy.d/ instead" \
			>> "$CATALINA_BASE/conf/catalina.policy"
		echo ""  >> "$CATALINA_BASE/conf/catalina.policy"
		cat /etc/tomcat4/policy.d/*.policy \
			>> "$CATALINA_BASE/conf/catalina.policy"

		# Clean up and set permissions on required files
		rm -rf "$CATALINA_BASE"/temp/* \
			"$CATALINA_BASE/logs/catalina.out"
		mkfifo -m700 "$CATALINA_BASE/logs/catalina.out"
		chown --dereference "$TOMCAT4_USER" "$CATALINA_BASE/conf" \
			"$CATALINA_BASE/conf/tomcat-users.xml" \
			"$CATALINA_BASE/logs" "$CATALINA_BASE/temp" \
			"$CATALINA_BASE/webapps" "$CATALINA_BASE/work" \
			"$CATALINA_BASE/logs/catalina.out" || true

		# Look for rotatelogs/rotatelogs2
		if [ -x /usr/sbin/rotatelogs ]; then
			ROTATELOGS=/usr/sbin/rotatelogs
		else
			ROTATELOGS=/usr/sbin/rotatelogs2
		fi

		# -p preserves the environment (for $JAVA_HOME etc.)
		# -s is required because tomcat4's login shell is /bin/false
		su -p -s /bin/sh $TOMCAT4_USER \
				-c "$ROTATELOGS \"$CATALINA_BASE/logs/catalina_%F.log\" 86400" \
				< "$CATALINA_BASE/logs/catalina.out" &
		su -p -s /bin/sh $TOMCAT4_USER \
			-c "\"$DAEMON\" start $STARTUP_OPTS" \
			>> "$CATALINA_BASE/logs/catalina.out" 2>&1
		echo "$NAME."
	else
		echo "(already running)."
	fi
	;;
  stop)
	echo -n "Stopping $DESC: "
        if start-stop-daemon --test --start --pidfile "$CATALINA_PID" \
		--user "$TOMCAT4_USER" --startas "$JAVA_HOME/bin/java" \
		>/dev/null; then
		echo "(not running)."
	else
		su -p -s /bin/sh $TOMCAT4_USER -c "\"$DAEMON\" stop" \
			>/dev/null 2>&1 || true
		# Fallback to kill the JVM process in case stopping didn't work
		sleep 1
		while ! start-stop-daemon --test --start \
			--pidfile "$CATALINA_PID" --user "$TOMCAT4_USER" \
			--startas "$JAVA_HOME/bin/java" >/dev/null; do
			sleep 1
			echo -n "."
			TOMCAT4_SHUTDOWN=`expr $TOMCAT4_SHUTDOWN - 1` || true
			if [ $TOMCAT4_SHUTDOWN -le 0 ]; then
				echo -n " (killing) "
				start-stop-daemon --stop --signal 9 --oknodo \
					--quiet --pidfile "$CATALINA_PID" \
					--user "$TOMCAT4_USER"
			fi
		done
		rm -f "$CATALINA_PID" "$CATALINA_BASE/logs/catalina.out"
		echo "$NAME."
	fi
	;;
   status)
        if start-stop-daemon --test --start --pidfile "$CATALINA_PID" \
		--user $TOMCAT4_USER --startas "$JAVA_HOME/bin/java" \
		>/dev/null; then

		if [ -f "$CATALINA_PID" ]; then
		    echo "$DESC is not running, but pid file exists."
		    exit 1
		else
		    echo "$DESC is not running."
		    exit 3
		fi
	else
		echo -n "$DESC is running with Java pid "
		cat "$CATALINA_PID"
		exit 0
	fi
        ;;
  reload)
	echo "Reload is not implemented!" >&2
	exit 3
  	;;
  restart|force-reload)
	$0 stop
	sleep 1
	$0 start
	;;
  *)
	echo "Usage: /etc/init.d/tomcat4 {start|stop|restart|force-reload|status}" >&2
	exit 2
	;;
esac

exit 0
