#!/bin/sh

#

# WebKit application server

# part of Webware for Python

# www.webwareforpython.org

#

# /etc/init.d/webkit

#

# Generic init.d shell start script for Unix

#

# Note: You will find more sophisticated start scripts

# for various Unix flavors in the StartScripts folder.

#

# START LOCAL CONFIGURATION

# If you store this script in your Webware working directory

# and create a symlink to it as /etc/init.d/webkit_appname,

# it will try to guess your configuration parameters. Otherwise

# you need to hard code the path to the working directory here.

# You can make changes either directly here in the start script or

# you can also override the configuration in the Launch.py script.

# The location and name of the start sript:

START_SCRIPT="$0"

APP_NAME=`basename "$START_SCRIPT"`

if [ -h "$START_SCRIPT" ]; then

# Get the target file if start script is given as a link:

START_SCRIPT=`echo "import os;p='$START_SCRIPT'

while os.path.islink(p):

p = os.path.join(os.path.dirname(p), os.readlink(p))

print p" | python`

fi

# The location of the working directory:

WORK_DIR=`dirname "$START_SCRIPT"`

if [ "$WORK_DIR" = "/etc/init.d" ]; then

# Put hard coded path to working directory here:

WORK_DIR="."

fi

# Make sure to have the absolute path:

test -d "$WORK_DIR" || exit 5

WORK_DIR=`cd "$WORK_DIR" 2>/dev/null && pwd`

# The app server launch script:

APP_SERVER="$WORK_DIR/AppServer"

test -x "$APP_SERVER" || exit 5

# The WebKit app server log file

# (you can set this in Launch.py as well):

#LOG_FILE="/var/log/$APP_NAME.log"

LOG_FILE="$WORK_DIR/Logs/webkit.log"

# Use this extension if you want to move the last log away

# (also consider using logrotate or something similar):

LOG_OLD=".old"

# The app server process id file

# (you can set this in Launch.py as well):

#PID_FILE="/var/run/$APP_NAME.pid"

PID_FILE="$WORK_DIR/webkit.pid"

# The user to run the app server

# (you can set this in Launch.py as well).

# If undefined, it will be the user

# running the start script (usually root).

# You should use a low-privilege account,

# like the work dir owner, wwwrun or nobody.

# This will use the owner of the AppServer script:

WEBWARE_USER=`echo "import os,pwd;

print pwd.getpwuid(os.stat('$APP_SERVER')[4])[0]" | python`

# Unset the following variable if you want to store the

# pid and log files as the user running the start script

# (usually root) or set it if you want these files to be

# written after switching to the WEBWARE_USER.

LAUNCH_AS_WEBWARE="yes"

# Additional options -u or -O to be passed on to Python:

PYTHONOPTS=

# Additional libraries to be included in the Python path:

PYTHONPATH=

export PYTHONPATH

# END LOCAL CONFIGURATION

case "$1" in

start)

printf "Starting $APP_NAME ... "

# Keep backup of last log file:

if [ "$LOG_OLD" -a -f "$LOG_FILE" ]; then

if [ -s "$LOG_FILE" ]; then

mv -f "$LOG_FILE" "$LOG_FILE$LOG_OLD"

else

rm -f "$LOG_FILE"

fi

fi

# Check if the server is already running:

if [ -f "$PID_FILE" ] ; then

PID=`cat "$PID_FILE"`

if [ "$PID" ]; then

# Check on the command line if it is really our pid file

# (MacOs has only "command", SunOS has only "args"):

if (ps -o command= -p $PID 2>/dev/null \

|| ps -o args= -p $PID 2>/dev/null) \

| grep -q " -i $PID_FILE "; then

echo "already running"

exit 0

fi

fi

rm -f "$PID_FILE"

fi

if [ -z "$WEBWARE_USER" -o "$WEBWARE_USER" = "$USER" ]; then

"$APP_SERVER" $PYTHONOPTS -i "$PID_FILE" \

-d "$WORK_DIR" -o "$LOG_FILE" > /dev/null &

else

if [ "$LAUNCH_AS_WEBWARE" ]; then

# Switch user first, then create pid and log files:

CMD="\"$APP_SERVER\" $PYTHONOPTS"

CMD="$CMD -i \"$PID_FILE\" -d \"$WORK_DIR\" -o \"$LOG_FILE\""

su $WEBWARE_USER -c "$CMD" > /dev/null &

else

# Create pid and log files first, then switch user:

"$APP_SERVER" $PYTHONOPTS -i "$PID_FILE" \

-d "$WORK_DIR" -u $WEBWARE_USER >> "$LOG_FILE" 2>&1 &

fi

fi

echo "done"

;;

stop)

printf "Stopping $APP_NAME ... "

if [ -f "$PID_FILE" ] ; then

PID=`cat "$PID_FILE"`

if [ "$PID" ]; then

if (ps -o command= -p $PID 2>/dev/null \

|| ps -o args= -p $PID 2>/dev/null) \

| grep -q " -i $PID_FILE "; then

if kill $PID > /dev/null 2>&1 ; then

echo "done"

else

echo "error"

echo "Could not kill process $PID named in $PID_FILE"

exit 1

fi

else

echo "not running (removing stale pid file)"

fi

else

echo "not running (removing empty pid file)"

fi

rm -f "$PID_FILE"

else

echo "not running"

fi

;;

*)

echo "Usage: $0 {start|stop}"

exit 1

;;

esac