#!/bin/sh
# run-apache

## dgg mods of apachectl for start/stop flybase apache web server
## add start/stop of $HOME/etc/tomcat server (bin/tomcat.sh)

## jan04 - create specially tuned flybaseng-apache80.conf and flybaseng-apache8081.conf 
## run two servers: port80 only for flybaseng, no other port listens (a high load delay)
## second server to handle ports 8081 (argos general), 81 (old fb), 7081 (old fb) 7084 (ng)
## and redirect all but 8081 to port80 server



# |||||||||||||||||||| START CONFIGURATION SECTION  ||||||||||||||||||||
# --------------------                              --------------------

ROOT=/bio/biodb

APACHE_HOME="$ROOT/common/servers/apache"; export APACHE_HOME

APACHE_PORT=8081

TOMCAT_RUN="$ROOT/install/run-tomcat" 

#? PERL5LIB="$ROOT/common/perl/lib" ; export PERL5LIB

# the path to your PID file
APACHE_PID="$ROOT/logs/httpd.pid"

APACHE_CONF="$ROOT/ROOT/conf/apache.conf"

# the path to your httpd binary, including options if necessary
APACHE_HTTPD="$ROOT/common/servers/apache/bin/httpd -d $APACHE_HOME -f $APACHE_CONF"

## optionally reset above settings from .conf

runconf=install.conf

PRG="$0"
# resolve symlinks -h
while [ -h "$PRG" ]; do
  ls=`ls -ld "$PRG"`
  link=`expr "$ls" : '.*-> \(.*\)$'`
  if expr "$link" : '.*/.*' > /dev/null; then
    PRG="$link"
  else
    PRG=`dirname "$PRG"`/"$link"
  fi
done
PRGDIR=`dirname "$PRG"`

## override (possibly) above settings
if [ -r "$PRGDIR"/$runconf ]; then
  . "$PRGDIR"/$runconf
fi
if [ -r "$PRGDIR"/${runconf}.local ]; then
  . "$PRGDIR"/${runconf}.local
fi


# a command that outputs a formatted text version of the HTML at the
# url given on the command line.  Designed for lynx, however other
# programs may work. 
# if [ -x "lynx" ]; then 
LYNX="lynx -dump"
# elif [ -x "curl" ]; then
# LYNX="curl"
# fi

#
# the URL to your server's mod_status status page.  If you do not
# have one, then status and fullstatus will not work.
STATUSURL="http://localhost:$APACHE_PORT/server-status"
#
# --------------------                              --------------------
# ||||||||||||||||||||   END CONFIGURATION SECTION  ||||||||||||||||||||

ERROR=0
ARGV="$@"
if [ "x$ARGV" = "x" ] ; then 
    ARGS="help"
fi

for ARG in $@ $ARGS
do
    # check for pidfile
    if [ -f $APACHE_PID ] ; then
	PID=`cat $APACHE_PID`
	if [ "x$PID" != "x" ] && kill -0 $PID 2>/dev/null ; then
	    STATUS="httpd (pid $PID) running"
	    RUNNING=1
	else
	    STATUS="httpd (pid $PID?) not running"
	    RUNNING=0
	fi
    else
	STATUS="httpd (no pid file) not running"
	RUNNING=0
    fi

    case $ARG in
    notom*) TOMCAT_RUN="echo NO tomcat "; notomcat=1 ;;
    
    start)
	if [ $RUNNING -eq 1 ]; then
	    echo "$0 $ARG: httpd (pid $PID) already running"
	    continue
	fi
	if $APACHE_HTTPD ; then
	    echo "$0 $ARG: httpd started"
	else
	    echo "$0 $ARG: httpd could not be started"
	    ERROR=3
	fi
	## dgg; add tomcat start
	$TOMCAT_RUN graceful
	;;
	
    stop)
	if [ $RUNNING -eq 0 ]; then
	    echo "$0 $ARG: $STATUS"
	    continue
	fi
	if kill $PID ; then
	    echo "$0 $ARG: httpd stopped"
	else
	    echo "$0 $ARG: httpd could not be stopped"
	    ERROR=4
	fi
	## dgg; add tomcat stop
	$TOMCAT_RUN stop
	;;
	
    restart)
	if [ $RUNNING -eq 0 ]; then
	    echo "$0 $ARG: httpd not running, trying to start"
	    if $APACHE_HTTPD ; then
		echo "$0 $ARG: httpd started"
	    else
		echo "$0 $ARG: httpd could not be started"
		ERROR=5
	    fi
	else
	    if $APACHE_HTTPD -t >/dev/null 2>&1; then
		if kill -HUP $PID ; then
		    echo "$0 $ARG: httpd restarted"
		else
		    echo "$0 $ARG: httpd could not be restarted"
		    ERROR=6
		fi
	    else
		echo "$0 $ARG: configuration broken, ignoring restart"
		echo "$0 $ARG: (run 'apachectl configtest' for details)"
		ERROR=6
	    fi
	fi
	## dgg; add tomcat restart
	$TOMCAT_RUN restart
		;;
		
    graceful)
	if [ $RUNNING -eq 0 ]; then
	    echo "$0 $ARG: httpd not running, trying to start"
	    if $APACHE_HTTPD ; then
		echo "$0 $ARG: httpd started"
	    else
		echo "$0 $ARG: httpd could not be started"
		ERROR=5
	    fi
	else
	    if $APACHE_HTTPD -t >/dev/null 2>&1; then
		if kill -USR1 $PID ; then
		    echo "$0 $ARG: httpd gracefully restarted"
		else
		    echo "$0 $ARG: httpd could not be restarted"
		    ERROR=7
		fi
	    else
		echo "$0 $ARG: configuration broken, ignoring restart"
		echo "$0 $ARG: (run 'apachectl configtest' for details)"
		ERROR=7
	    fi
	fi
	## dgg; add tomcat graceful
	$TOMCAT_RUN graceful
	;;
	
    status)
	$LYNX $STATUSURL | awk ' /process$/ { print; exit } { print } '
	;;
    fullstatus)
	$LYNX $STATUSURL
	;;
    configtest)
	if $APACHE_HTTPD -t; then
	    :
	else
	    ERROR=8
	fi
	;;
    *)
	echo "usage: $0 [notomcat] (start|stop|restart|fullstatus|status|graceful|configtest|help)"
	cat <<EOF

start      - start httpd
stop       - stop httpd
restart    - restart httpd if running by sending a SIGHUP or start if 
             not running
fullstatus - dump a full status screen; requires lynx and mod_status enabled
status     - dump a short status screen; requires lynx and mod_status enabled
graceful   - do a graceful restart by sending a SIGUSR1 or start if not running
configtest - do a configuration syntax test
help       - this screen

* commands (start|stop|restart|graceful) unless prefixed by notomcat
  also call $TOMCAT_RUN 
  
EOF
	echo "Using APACHE_HOME:  $APACHE_HOME"
	echo "Using APACHE_CONF:  $APACHE_CONF"
	echo "Using APACHE_PORT:	$APACHE_PORT"
	echo
	
	ERROR=2
    ;;
##  also call $TOMCAT_HOME/bin/tomcat.sh 

    esac

done

exit $ERROR