#!/bin/sh

# Pandora FMS Server Installer (c) 2008-2011 Artica ST
# Linux/FreeBSD Version (generic), for SuSe, Debian/Ubuntu and FreeBSD only
# other Linux distros could not work properly without modifications
# Please see http://www.pandorafms.org
# v4.0dev Build 111026
# This code is licensed under GPL 2.0 license.
# **********************************************************************


MODE=$1
SECOPT=$2
PANDORA_SPOOL=/var/spool/pandora
PANDORA_HOME=/usr/share/pandora_server
PANDORA_CFG_DIR=/etc/pandora
PANDORA_LOG=/var/log/pandora
PANDORA_SERVER=/etc/init.d/pandora_server
TENTACLE_SERVER=/etc/init.d/tentacle_serverd
PANDORA_CFG_FILE=/etc/pandora/pandora_server.conf


get_distro () {
	# Get Linux Distro type and version
	# We assume we are on Linux unless told otherwise
	LINUX=YES
	if [ -f "/etc/SuSE-release" ]
	then
		OS_VERSION=`cat /etc/SuSE-release | grep VERSION | cut -f 3 -d " "`
		LINUX_DISTRO=SUSE
	elif [ -f "/etc/lsb-release" ]
	then
		OS_VERSION=`cat /etc/lsb-release | grep DISTRIB_RELEASE | cut -f 2 -d "="`
		LINUX_DISTRO=UBUNTU
		OS_VERSION="UBUNTU $OS_VERSION"
	elif [ -f "/etc/debian_version" ]
	then
		OS_VERSION=`cat /etc/debian_version`
		OS_VERSION="DEBIAN $OS_VERSION"
		LINUX_DISTRO=DEBIAN
	elif [ -f "/etc/fedora-release" ]
	then
		OS_VERSION=`cat /etc/fedora-release | cut -f 4 -d " "`
		OS_VERSION="FEDORA $OS_VERSION"
		LINUX_DISTRO=FEDORA
	elif [ `uname -s` = "Darwin" ]
	then
		# For future reference, Darwin doesn't have /etc/init.d but uses LaunchDaemons
		LINUX_DISTRO="Darwin"
		OS_VERSION=`uname -r`
		LINUX=NO
	elif [ `uname -s` = "AIX" ]
	then
		# For future reference, AIX doesn't have /etc/init.d
		LINUX_DISTRO="AIX"
		OS_VERSION=`uname -r`
		LINUX=NO
	elif [ `uname -s` = "SunOS" ]
	then
		# Some Solaris and other Unices don't have /etc/init.d, some have /usr/spool instead of /var/spool
		LINUX_DISTRO="Solaris"
		OS_VERSION=`uname -r`
		LINUX=NO
	elif [ `uname -s` = "Linux" ]
	then
		# Test for Linux to make sure we're on Linux
		LINUX_DISTRO="GENERIC"
		OS_VERSION=`uname -r`
	elif [ `uname -s` = "FreeBSD" ]
	then
		LINUX_DISTRO="FreeBSD"
		OS_VERSION=`uname -r`
		LINUX=NO
	else
		# Default to Linux is false, test for real Linux above - that way we don't assume we can just plunk down files everywhere
		LINUX_DISTRO=`uname -s`
		OS_VERSION=`uname -r`
		LINUX=NO
	fi
	echo "$LINUX_DISTRO:$OS_VERSION:$LINUX"
}


install () {

	perl Makefile.PL > output 2>&1 #&& sleep 2 && cat output | grep "found" | wc -l 
	DEPENDENCIAS=`cat output | grep "found" | wc -l`

	FORCE=0

	if [ ! -z "$SECOPT" ]
	then
		if [ "$SECOPT" == "--force" ]
		then
			FORCE=1
		fi
	fi
			
	if [ $DEPENDENCIAS -gt 0 ] && [ $FORCE == 0 ]
	then
		echo "You are missing the following dependencies"
		echo " "
		cat output | awk -F ": prerequisite" '{print $2}' | awk -F " " '{print $1}'
		echo "The complete installation guide is at: http://openideas.info/wiki/index.php?title=Pandora"
		echo " "
		echo "Debian-based distribution do:"
		echo "	# apt-get install snmp snmpd libio-socket-inet6-perl libsocket6-perl libxml-simple-perl libxml-twig-perl libnetaddr-ip-perl libdbi-perl libsnmp-perl libnetaddr-ip-perl libhtml-parser-perl wmi-client xprobe2 snmp-mibs-downloader"
		echo " "
		echo "For CentOS / RHEL do: "
		echo " "
		echo "	# yum install perl-XML-Simple* perl-XML-Twig perl-IO-Socket* perl-Socket6 perl-Time-modules* perl-NetAddr-IP* perl-DateTime* perl-ExtUtils perl-DBI perl-SNMP nmap "
		echo " "
		echo "For OpenSUSE / SLES do : "
		echo " "
		echo "	# zypper install nmap perl-DBD-mysql perl-DBI perl-HTML-Parser 
perl-HTML-Encoding perl-HTML-Tree perl-NetAddr-IP perl-IO-Socket-INET6 perl-Socket6
perl-TimeDate perl-XML-Simple perl-XML-Twig perl-libwww-perl mysql-client perl-SNMP"
		echo " "
		echo "	You also will need to install (optionally) xprobe2 and wmiclient from rpm (download from our website)"
		echo " "
		echo "For FreeBSD do : "
		echo " "
		echo "  Install perl5.8 or later from ports with thread enabled."
		echo "  (perl-5.8.x.pkg can not be used.)"
		echo "  # cd /usr/ports/lang/perl5.8"
		echo "  # make config"
		echo "    -> Enable THREADS."
		echo "  # make"
		echo "  # make install"
		echo " "
		echo "  Install following tools from ports. Don't use packages."
		echo "  Recommended: p5-DBI p5-NetAddr-IP p5-XML-Simple p5-XML-Twig p5-HTML-Parser p5-Net-SNMP p5-SNMP p5-DBD-mysql p5-Socket6 p5-IO-Socket-INET6"
		echo "  Optional: nmap xprobe"
		echo " "
		echo "To get it from source through CPAN do"
		echo " "
		echo "	$ cpan Time::Local DBI SNMP Socket6 XML::Simple XML::Twig IO::Socket Time::HiRes NetAddr::IP HTML::Entities IO::Socket::INET6"
		echo " "
		rm output
	else

		# This returns a multiple value string, separated with ":" -> $LINUX_DISTRO:$OS_VERSION:$LINUX	
		GET_DISTRO="`get_distro`"
		DISTRO=`echo $GET_DISTRO | cut -f 1 -d ":"`
		OS_VERSION=`echo $GET_DISTRO | cut -f 2 -d ":"`
		LINUX=`echo $GET_DISTRO | cut -f 3 -d ":"`	
	
		if [ "$DISTRO" = "UBUNTU" ]
		then
			echo "UBUNTU distribution detected"
		elif [ "$DISTRO" = "SUSE" ]
		then
			echo "SUSE distribution detected"
		elif [ "$DISTRO" = "FreeBSD" ]
                then
			echo "FreeBSD detected"
			PANDORA_SPOOL=/var/spool/pandora
			PANDORA_HOME=/usr/local/share/pandora_server
			PANDORA_CFG_DIR=/usr/local/etc/pandora
			PANDORA_LOG=/var/log/pandora
			PANDORA_SERVER=/usr/local/etc/rc.d/pandora_server
			TENTACLE_SERVER=/usr/local/etc/rc.d/tentacle_server
			PANDORA_CFG_FILE=/usr/local/etc/pandora/pandora_server.conf
		fi
		
		echo "Installing binaries and libraries"
		make
		make install
		
	    echo "Checking binaries at /usr/local/bin -> /usr/bin"
		if [ ! -e "/usr/bin/pandora_server" ]
		then
			if [ ! -e "/usr/local/bin/pandora_server" ]
			then
				echo "ERROR compiling Pandora FMS Server from sources. Aborting"
				exit 1
			fi
			if [ "$DISTRO" != "FreeBSD" ]
			then
				ln -s /usr/local/bin/pandora_server /usr/bin
				ln -s /usr/local/bin/pandora_exec /usr/bin		
			fi
		fi

		echo "Creating common Pandora FMS directories"
		id pandora 2> /dev/null
		if [ $? -eq 0 ]; then
			echo " "
			echo "User pandora does exist, make sure the SSH directories are correct"
		else
			echo "Are you sure we can create a standard 'pandora' user locally? [y/N]"
			read AREYOUSURE
			if [ "$AREYOUSURE" = "y" ]; then
				if [ "$DISTRO" = "FreeBSD" ]
				then
					echo "pandora:41121:::::Pandora FMS:/home/pandora:/usr/sbin/nologin:" | adduser -f - -w no 2> /dev/null
				else
					useradd pandora 
					mkdir /home/pandora 2> /dev/null
					mkdir /home/pandora/.ssh 2> /dev/null
					chown -R pandora /home/pandora 
				fi
			else
				echo "Please create the 'pandora' user manually according to your authentication scheme, then start again the installation"
				echo "Aborting..."
				exit 1
			fi
		fi

		mkdir $PANDORA_SPOOL 2> /dev/null
		mkdir $PANDORA_SPOOL/data_in 2> /dev/null
		chmod 770 $PANDORA_SPOOL/data_in
		mkdir $PANDORA_SPOOL/data_in/conf 2> /dev/null
		chmod 770 $PANDORA_SPOOL/data_in/conf
		mkdir $PANDORA_SPOOL/data_in/md5 2> /dev/null
		chmod 770 $PANDORA_SPOOL/data_in/md5
		mkdir $PANDORA_SPOOL/data_in/collections 2> /dev/null
		chmod 770 $PANDORA_SPOOL/data_in/collections
		mkdir $PANDORA_LOG 2> /dev/null	

		echo "Giving proper permission to /var/spool/pandora"
		id -g www-data 2> /dev/null
		if [ $? -eq 0 ]
		then
			chown -R pandora:www-data $PANDORA_SPOOL
		else
			id -g wwwrun 2> /dev/null
			if [ $? -eq 0 ]
			then
				chown -R pandora:wwwrun $PANDORA_SPOOL
			else
				id -g www 2> /dev/null
				if [ $? -eq 0 ]
				then
					chown -R pandora:www $PANDORA_SPOOL
				else
					id -g apache 2> /dev/null
					if [ $? -eq 0 ]
					then
						chown -R pandora:apache $PANDORA_SPOOL
					else
						echo "No web server user found, some functionality might not perform correctly"
						chown -R pandora:root $PANDORA_SPOOL
					fi
				fi
			fi
		fi
		
		
		echo "Creating setup directory in $PANDORA_CFG_DIR"
		mkdir $PANDORA_CFG_DIR 2> /dev/null
		if [ -e $PANDORA_CFG_FILE ]
		then
			OLDFILENAMETMP=`date +"%Y-%m-%d"`
			echo "Old installation detected, backing up pandora_server.conf.$ODFILENAMETMP"
			mv $PANDORA_CFG_FILE $PANDORA_CFG_FILE.$OLDFILENAMETMP
		fi
		if [ "$DISTRO" = "FreeBSD" ]
		then
			echo cp FreeBSD/pandora_server.conf $PANDORA_CFG_DIR
                	cp FreeBSD/pandora_server.conf $PANDORA_CFG_DIR
		else
			echo cp conf/pandora_server.conf $PANDORA_CFG_DIR
			cp conf/pandora_server.conf $PANDORA_CFG_DIR
		fi
		chmod 770 $PANDORA_CFG_FILE

		echo "Installing Pandora Server manual"
		if [ "$DISTRO" = "FreeBSD" ]
		then
			cp man/man1/pandora_server.1.gz /usr/local/man/man1
		else
			cp man/man1/pandora_server.1.gz /usr/share/man/man1
		fi
		
		if [ "$LINUX" = "YES" ]
		then
			echo "Copying the daemon script into /etc/init.d/pandora_server"
			cp util/pandora_server /etc/init.d/		
			
			if [ "$DISTRO" = "UBUNTU" ] || [ "$DISTRO" = "DEBIAN" ]
			then
			
				echo "Linking startup script to /etc/rc2.d"
				update-rc.d pandora_server defaults
			else
				if [ "$DISTRO" = "SUSE" ]
				then
					echo "Creating startup daemons"
					insserv pandora_server
				else
					# Pandora FMS Server install (Other Distros)
					INITLV=`cat /etc/inittab | grep "[0-9]\:initdefault" | cut -f 2 -d ":"`
					if [ -z "$INITLV" ]
					then
						INITLV=2
					fi
					echo "Linking startup script to /etc/rc.d/rc$INITLV.d"
					ln -s $PANDORA_SERVER /etc/rc.d/rc$INITLV.d/S90pandora_server
				fi
			fi
		else
			if [ "$DISTRO" = "FreeBSD" ]
			then
				echo "Copying the daemon script into $PANDORA_SERVER"
				cp FreeBSD/pandora_server $PANDORA_SERVER 
				chmod 555 $PANDORA_SERVER
                        fi
		fi

		if [ -d /etc/logrotate.d ]; then
			echo "Creating logrotate.d entry for Pandora FMS log management"
			cp util/pandora_logrotate /etc/logrotate.d/pandora
		else
			echo "Please add a log rotation schedule manually to your log rotation daemon (if any)"
		fi
	
		if [ "$LINUX" = "YES" ]
		then
			if [ "$SECOPT" != "--no-tentacle" ]
			then
				if [ "$DISTRO" = "UBUNTU" ] || [ "$DISTRO" = "DEBIAN" ]
				then
					# Tentacle server install (Ubuntu)
					echo "Installing tentacle server"
					cp bin/tentacle_server /usr/bin
					chown pandora /usr/bin/tentacle_server
					cp util/tentacle_serverd $TENTACLE_SERVER
   					update-rc.d tentacle_serverd defaults
				else
					if [ "$DISTRO" = "SUSE" ]
					then
						echo "Creating Tentacle startup daemon"
						cp bin/tentacle_server /usr/bin
						chown pandora /usr/bin/tentacle_server
						cp util/tentacle_serverd /etc/init.d/tentacle_serverd
						insserv tentacle_serverd
					else
						# Tentacle server install (Other Distros)
						echo "Installing tentacle server in /etc/rc.d/rc$INITLV.d/S80tentacle_serverd"
						cp bin/tentacle_server /usr/bin
						chown pandora /usr/bin/tentacle_server
						cp util/tentacle_serverd /etc/init.d/tentacle_serverd
						ln -s $TENTACLE_SERVER /etc/rc.d/rc$INITLV.d/S80tentacle_serverd
					fi
				fi

				echo "Installing Tentacle Server manual"
				cp man/man1/tentacle_server.1.gz /usr/share/man/man1
			fi
		else
			if [ "$SECOPT" != "--no-tentacle" ]
			then
				if [ "$DISTRO" = "FreeBSD" ]
				then
					echo "Installing tentacle server"
					cp bin/tentacle_server /usr/local/bin
					chown pandora /usr/local/bin/tentacle_server
					cp FreeBSD/tentacle_server $TENTACLE_SERVER
					chmod 555 $TENTACLE_SERVER
					echo "Installing Tentacle Server manual"
					cp man/man1/tentacle_server.1.gz /usr/local/man/man1
				fi
			fi
		fi

		echo "Creating Pandora FMS distribution directory in $PANDORA_HOME"
		mkdir $PANDORA_HOME 2> /dev/null
		cp -R util $PANDORA_HOME
		
		if [ -d /etc/cron.daily ]
		then
			echo "Creating the Cron script to run daily Pandora DB tool"
			echo "#!/bin/bash" > /etc/cron.daily/pandora_db	
			echo "perl /usr/share/pandora_server/util/pandora_db.pl /etc/pandora/pandora_server.conf" >> /etc/cron.daily/pandora_db	
			chmod +x /etc/cron.daily/pandora_db
		else
			if [ "$DISTRO" = "FreeBSD" ]
			then
				grep pandora_db.pl /etc/crontab > /dev/null 2>&1
				if [ $? -ne 0 ]
				then
					echo "# Pandora FMS" >> /etc/crontab
					echo "2 0       *       *       *       root    perl /usr/local/share/pandora_server/util/pandora_db.pl /usr/local/etc/pandora/pandora_server.conf" >> /etc/crontab
				else
					echo "The crontab for pandora_db.pl is already configured."
				fi
			else
				echo "You're probably not using cron for automatic scheduling. You should schedule the following command to run frequently (daily) on your master server:"
				echo "	perl /usr/share/pandora_server/util/pandora_db.pl /etc/pandora/pandora_server.conf"
			fi
		fi
		echo
		echo "Now you have to edit your $PANDORA_CFG_FILE file to change the database password (default is pandora) with the one set in include/config.php of your Pandora FMS Console."
		echo "After setting password you can start your Pandora FMS Server!!"
		rm output

		if [ -d "/etc/logrotate.d" ]
		then
			echo "Managing Pandora FMS logs with logrotate (Distro independent)"
			cp -aRf util/pandora_logrotate /etc/logrotate.d/pandora
		fi

		if [ "$DISTRO" = "FreeBSD" ]
		then
			echo " "
			echo "Define 'pandora_server_enable=\"YES\"' in /etc/rc.conf to enable pandora server daemon."
			echo "Define 'tentacle_server_enable=\"YES\"' in /etc/rc.conf to enable tentacle server daemon."
		fi
	fi

}

uninstall_freebsd () {
	PANDORA_SPOOL=/var/spool/pandora
	PANDORA_HOME=/usr/local/share/pandora_server
	PANDORA_CFG_DIR=/usr/local/etc/pandora
	PANDORA_LOG=/var/log/pandora
	PANDORA_SERVER=/usr/local/etc/rc.d/pandora_server
	TENTACLE_SERVER=/usr/local/etc/rc.d/tentacle_server
	PANDORA_CFG_FILE=/usr/local/etc/pandora/pandora_server.conf
	TMP_CRONTAB=/tmp/crontab.tmp

	echo "Removing Pandora Servers"
	rm -Rf $PANDORA_SPOOL/data_in/

	echo "If the user Pandora is not being used for any other operations, please delete using the following commands:"
	echo "  rmuser pandora"

	rm -Rf $PANDORA_LOG 2> /dev/null
	rm -Rf $PANDORA_CFG_FILE 2> /dev/null
	rm -Rf $PANDORA_SERVER 2> /dev/null
	rm -Rf $PANDORA_HOME
	rm -Rf $PANDORA_SERVER
	rm -Rf $TENTACLE_SERVER

	cat /etc/crontab | grep -v "Pandora FMS" | grep -v "pandora_db.pl" > $TMP_CRONTAB
	cp $TMP_CRONTAB /etc/crontab
	rm $TMP_CRONTAB

	echo "Done"
	exit
}

uninstall () {
	GET_DISTRO="`get_distro`"
	DISTRO=`echo $GET_DISTRO | cut -f 1 -d ":"`
	if [ "`uname -s`" != "Linux" ]; then
		if [ "$DISTRO" = "FreeBSD" ]
		then
			uninstall_freebsd
		else
			echo "This is not a Linux-based distro. Uninstaller is currently not working for your OS"
		fi
	fi
	echo "Removing Pandora Servers"
	if [ -d $PANDORA_SPOOL/data_out ]; then
		rm -Rf $PANDORA_SPOOL/data_in
	else
		rm -Rf $PANDORA_SPOOL
	fi

	echo "If the user Pandora is not being used for any other operations, please delete using the following commands:"
	echo "	userdel pandora"
	echo "	rm -Rf /home/pandora/"

	## Just to clarify here. Some people (like me) are using the pandora user 
	## for other purposes and/or using an LDAP-based user management
	## I would hate to have a script clear out this users' information without any notification

	rm -Rf $PANDORA_LOG 2> /dev/null 
	rm -Rf $PANDORA_CFG_FILE 2> /dev/null
	rm -Rf $PANDORA_SERVER 2> /dev/null 
	rm -Rf /usr/bin/pandora_server 2> /dev/null
	rm -Rf /usr/bin/pandora_exec 2> /dev/null
	rm -Rf $PANDORA_HOME
	rm -Rf /etc/cron.daily/pandora_db
	rm -Rf /etc/logrotate.d/pandora
	if [ "$DISTRO" = "UBUNTU" ] || [ "$DISTRO" = "DEBIAN" ]
	then
		update-rc.d -f pandora_server remove
		update-rc.d -f tentacle_serverd remove
	fi
	rm -Rf /etc/rc2.d/S90pandora_server 2> /dev/null 
	rm -Rf /etc/rc.d/rc3.d/S90pandora_server 2> /dev/null 
	rm -Rf /usr/share/man/man1/pandora_server.1.gz 2>/dev/null
	rm -Rf /usr/share/man/man1/tentacle_server.1.gz 2>/dev/null
	echo "Done"
}

help () {
	echo "	--install	To install Pandora FMS Servers on this system (You have to be root)"
	echo "	--uninstall	To uninstall and remove Pandora FMS Servers on this System"
	echo " "
	echo " Additional second parameter (after --install) "
	echo " "
	echo "  --force         Ignore dependency problems and do the install"
	echo "	--no-tentacle	Skip tentacle server installation (by default tentacle server installed)"
	echo " "
}

# Script banner at start
echo " "
echo "Pandora FMS 4.0dev Server Installer (c) 2008-2011 Artica ST"
echo "This program is licensed under GPL2 Terms. http://pandorafms.org"
echo " "

case "$MODE" in

'--install')
	install
	exit
	;;

'--uninstall')
	uninstall
	exit
	;;

*)
	help
esac