#!/usr/bin/ksh 
# **********************************************************************
# Pandora Enterprise Generic Host Agent Installer
# AIX version
# (c) 2007 Sancho Lerena <slerena@gmail.com>
# Please see http://pandora.sourceforge.net
# this code is licensed under GPL 2.0 license.
# Este codigo esta licenciado bajo la licencia GPL 2.0.
# **********************************************************************

PI_VERSION=1.0
PANDORA_BIN=/usr/bin/pandora_agent.sh
PANDORA_HOME=/usr/share/pandora_agent
PANDORA_TEMP=/var/spool/pandora
PANDORA_CFG=/etc/pandora
PANDORA_LOG=/var/adm/pandora_agent.log
PANDORA_STARTUP=/etc/rc.pandora_agent_daemon
PANDORA_STARTUP_RC=/etc/rc2.d/S90pandora_agent

FORCE=0
LOG_TIMESTAMP=`date +"%Y/%m/%d %H:%M:%S"`

MODE=$1

set `id`
if [ $1 != "uid=0(root)" ]
then
	echo " "
        echo "I need to run as root"
        echo " "
        exit 1
fi

if [ ! -f "pandora_agent.sh" ]
then
	echo " "
	echo "You need to place on main distribution directory before install"
	echo " "
	exit 1
fi

uninstall () {
        echo "Removing Pandora Agent..."
        rm -Rf $PANDORA_BIN
        rm -Rf $PANDORA_TEMP
        rm -Rf $PANDORA_CFG
        rm -Rf $PANDORA_STARTUP
        rm -Rf $PANDORA_HOME
        rm -Rf $PANDORA_LOG
        echo "Done"
}

install () {
        if [ -f $PANDORA_HOME ] && [ "$FORCE" = "0" ]
        then
                echo "Seems that default dir already exists. Please use --force to"
                echo "force installer to install on $PANDORA_HOME"
                exit
        else
                echo "Checking default dir $PANDORA_HOME..."
        fi

        if [ -f $PANDORA_BIN ] && [ "$FORCE" = "0" ]
        then
                echo "Seems that $PANDORA_BIN already exists. Please use --force to"
                echo "force installer to reinstall overwriting it"
                exit
        else
                echo "Checking Pandora Agent on $PANDORA_BIN...."
        fi

        # Create directories
        echo "Creating Pandora Agent home directory at $PANDORA_HOME ..."
        mkdir $PANDORA_HOME
        mkdir $PANDORA_TEMP
        mkdir $PANDORA_TEMP/data_out
        mkdir $PANDORA_CFG

        # Create logfile
        if [ ! -z "`touch $PANDORA_LOG`" ]
        then
                echo "Seems to be a problem generating logfile ($PANDORA_LOG) please checkit";
        else
                echo "Creating logfile at $PANDORA_LOG..."
        fi

        echo "$LOG_TIMESTAMP Pandora installer has created this file at startup" > $PANDORA_LOG

        # Copying agent and securing it
        echo "Copying Pandora Agent to $PANDORA_BIN..."
        cp pandora_agent.sh $PANDORA_BIN
        chmod 700 $PANDORA_BIN

        # Copying moduleS
        echo "Copying Pandora Agent configuration file to $PANDORA_HOME/pandora_agent.conf..."
        cp pandora_agent.conf $PANDORA_HOME
        cp pandora_agent.sh $PANDORA_HOME
	cp pandora_agent_daemon $PANDORA_HOME
	chmod 600 $PANDORA_HOME/pandora_agent.conf
        echo "Linking Pandora Agent configuration to $PANDORA_CFG/pandora_agent.conf..."
        ln -s $PANDORA_HOME/pandora_agent.conf $PANDORA_CFG
        echo "Setting secure permissions and ownership for all Pandora Agent files..."
        chown -R root $PANDORA_HOME
        chmod -R 600 $PANDORA_TEMP/data_out
        chmod 640 $PANDORA_LOG
        chgrp 3 $PANDORA_LOG
        echo "Linking start-up daemon script at $PANDORA_STARTUP"
        ln -s $PANDORA_HOME/pandora_agent_daemon $PANDORA_STARTUP
	echo "Linking start-up daemon script at $PANDORA_STARTUP_RC"
	ln -s $PANDORA_HOME/pandora_agent_daemon $PANDORA_STARTUP_RC
        chown -R root $PANDORA_BIN
        echo "Done."
        echo " "
        echo "You have your startup script ready at $PANDORA_STARTUP"
        echo "First you need to copy your public SSH keys ($HOME/.ssh/id_dsa.pub)"
        echo "under /home/pandora/.ssh/authorized_keys on your Pandora Server host"
        echo "You also need to setup your $PANDORA_CFG/pandora_agent.conf config file"
        echo " "

}

help () {
        echo "     --force-install     To force installation if already installed on system "
        echo "     --install           To install Pandora Agent on this system"
        echo "     --uninstall         To uninstall and remove Pandora Agent on this System"
        echo " "
}

# Script banner at start
echo " "
echo "Pandora Enterprise Agent Installer $BI_VERSION (c) 2007 Sancho Lerena"
echo "This program is licensed under GPL2 Terms. http://pandora.sourceforge.net"
echo " "

case "$MODE" in

'--force-install')
        FORCE=1
        install
        exit
        ;;

'--install')
        install
        exit
        ;;

'--uninstall')
        uninstall
        exit
        ;;

*)
        help
esac