#!/bin/sh
#
# Resource script for MailTo
#
# Author: Alan Robertson <alanr@unix.sh>
#
# Description: sends email to a sysadmin whenever a takeover occurs.
#
#	Note: This command requires an argument, unlike normal init scripts.
#
#	This can be given in the haresources file as:
#
#	You can also give a mail subject line or even multiple addresses
#		MailTo::alanr@unix.sh::BigImportantWebServer
#		MailTo::alanr@unix.sh,spoppi@gmx.de::BigImportantWebServer
#
#	This will then be put into the message subject and body.
#
# License: GPL

ARGS="$0 $*"

# Source function library.
prefix=/usr
exec_prefix=/usr
. /etc/ha.d/shellfuncs

us=`uname -n`

usage() {
  echo "Usage: $0 <email> [subject] {start|stop|status}"
  echo "$Id: MailTo.in,v 1.5.4.2 2004/04/29 01:09:37 alan Exp $"
  exit 1
}

MailProgram() {
	/bin/mail -s "$1" "$email"  <<EOF
        $Subject
 
        Command line was:
        $ARGS
EOF
}

SubjectLine() {
  case $1 in
    ??*)	echo $1;;
    *)		echo "Resource Group";;
  esac
}


MailToStart() {

	Subject="`SubjectLine $subject` Takeover in progress on $us"

	MailProgram "$Subject" $1
}

MailToStop () {
	Subject="`SubjectLine $subject` Migrating resource away from $us"

	MailProgram "$Subject" $1
}


# 
# See how we were called.
#
#	The order in which heartbeat provides arguments to resource
#	scripts is broken.  It should be fixed.
#
case "$#" in
  0|1)	echo "At least 1 Email address has to be given!"
    	usage
	;;

  2)	email=$1
	cmd=$2
	subject=""
	;;

  3)	email=$1
	cmd=$3
	subject=$2
    	;;

  *)	echo "Additional parameters found: $# but max. 3 are allowed!"
	usage;;
esac

case "$cmd" in
  start)	MailToStart
		;;
  stop)		MailToStop
		;;

	#	Not quite sure what to do with this one...
	#	We aren't a continuously running service - so it's not clear
	#
  status)	echo "stopped"
		;;

  *)		usage
		;;
esac

exit 0