#!/bin/sh

# Pandora FMS Console Installer (c) 2008-2011 Artica ST
# Linux/FreeBSD Version (generic), for SuSe, Debian/Ubuntu, RHEL/CentOS,
# Fedora and FreeBSD only
# other Linux distros could not work properly without modifications
# Please see http://www.pandorafms.org
# v4.0dev Build 110203
# This code is licensed under GPL 2.0 license.
# **********************************************************************

PI_VERSION=4.0
FORCE=0
LOG_TIMESTAMP=`date +"%Y/%m/%d %H:%M:%S"`
MODE=$1


get_distro () {

	OS_NAME=`uname -s`

	# Get Linux Distro type and version
	if [ -f "/etc/SuSE-release" ]
	then
		OS_VERSION=`cat /etc/SuSE-release | grep VERSION | cut -f 3 -d " "`
		LINUX_DISTRO=SUSE
	else
		if [ -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"
		else
			if [ -f "/etc/debian_version" ]
			then
				OS_VERSION=`cat /etc/debian_version`
				OS_VERSION="DEBIAN $OS_VERSION"
				LINUX_DISTRO=DEBIAN
			else
				if [ -f "/etc/fedora-release" ]
				then
					OS_VERSION=`cat /etc/fedora-release | cut -f 4 -d " "`
					OS_VERSION="FEDORA $OS_VERSION"
					LINUX_DISTRO=FEDORA
				else
					if [ -f "/etc/redhat-release" ]
					then
						LINUX_DISTRO=RHEL_CENTOS
					else
						if [ "$OS_NAME" = "FreeBSD" ]
						then
							LINUX_DISTRO=FreeBSD
						else
							LINUX_DISTRO=GENERIC
						fi
						OS_VERSION=`uname -r`
					fi
				fi
			fi
		fi
	fi
	echo $LINUX_DISTRO
}

uninstall () {
	DISTRO=`get_distro`

	if [ "$DISTRO" = "UBUNTU" ]
	then
		PANDORA_HOME=/var/www/pandora_console
	else
		if [ "$DISTRO" = "RHEL_CENTOS" ]
		then
			PANDORA_HOME=/var/www/html/pandora_console
		else
			if [ "$DISTRO" = "FEDORA" ]
			then
				PANDORA_HOME=/var/www/html/pandora_console
			else
				if [ "$DISTRO" = "FreeBSD" ]
				then
					PANDORA_HOME="/usr/local/www/data/pandora_console /usr/local/www/apache22/data/pandora_console"
				else
					PANDORA_HOME=/srv/www/htdocs/pandora_console
				fi
			fi
		fi
	fi

	echo "Removing Pandora FMS Console"
	rm -Rf $PANDORA_HOME
	echo "You need to drop manually pandora database from your Database server"
	echo "Done"
}

install () {

	DISTRO=`get_distro`
	OLDFILENAMETMP=`date +"%Y-%m-%d"`
	
	if [ "$DISTRO" = "UBUNTU" ]
	then
		PANDORA_HOME=/var/www/pandora_console
		PANDORA_CONF=$PANDORA_HOME/include/config.php
	else
		if [ "$DISTRO" = "RHEL_CENTOS" ]
		then
			PANDORA_HOME=/var/www/html/pandora_console
			PANDORA_CONF=$PANDORA_HOME/include/config.php
		else
			if [ "$DISTRO" = "FEDORA" ]
			then
				PANDORA_HOME=/var/www/html/pandora_console
				PANDORA_CONF=$PANDORA_HOME/include/config.php
			else
				if [ "$DISTRO" = "FreeBSD" ]
				then
					if [ -d /usr/local/www/apache22 ]
					then
						PANDORA_HOME=/usr/local/www/apache22/data/pandora_console
					else
						PANDORA_HOME=/usr/local/www/data/pandora_console
					fi
					PANDORA_CONF=$PANDORA_HOME/include/config.php
				else
					PANDORA_HOME=/srv/www/htdocs/pandora
					PANDORA_CONF=$PANDORA_HOME/include/config.php
				fi
			fi
		fi
	fi

	echo "Detecting operating system: $DISTRO"
	
	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

	# Create directories
	echo "Creating Pandora FMS Console home directory at $PANDORA_HOME ..."
	mkdir -p $PANDORA_HOME 2> /dev/null

	# Copying Pandora FMS console
	echo "Copying Pandora FMS Console to $PANDORA_HOME.."
	cp -R * $PANDORA_HOME
	chmod -R u+rwX,g+rX,g-w,o-rwx $PANDORA_HOME


	# Creating 'pandora' user
	id pandora 2> /dev/null
	if [ $? -eq 0 ]; then
		echo " "
		echo "User pandora does exist, skipping this step"
	else
		echo "Creating 'pandora' user"
		if [ "$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
	fi

	if [ ! -d /var/spool/pandora ]
	then
		mkdir -p /var/spool/pandora
	fi

	#Ownership
	if [ "$DISTRO" = "UBUNTU" ]
	then
		chown -R www-data:root $PANDORA_HOME
		chown -R pandora:www-data /var/spool/pandora/
	else 
		if [ "$DISTRO" = "RHEL_CENTOS" ]
		then
			chown -R apache:apache $PANDORA_HOME
			chown -R pandora:apache /var/spool/pandora/	
		else 
			if [ "$DISTRO" = "FEDORA" ]
			then
				chown -R apache:apache $PANDORA_HOME
				chown -R pandora:apache /var/spool/pandora/	
			else
				if [ "$DISTRO" = "FreeBSD" ]
				then
					chown -R www:www $PANDORA_HOME
					chown -R pandora:www /var/spool/pandora/
				else
					# Assuming SUSE
					chown -R wwwrun:root $PANDORA_HOME
					chown -R pandora:www /var/spool/pandora/
				fi
			fi
		fi
	fi

	echo "Setting secure permissions for Pandora FMS spool dir..."
	chmod -R u+rwX,g+rwX,o-rwx /var/spool/pandora/

	echo "Done."
	echo " "
	echo "You have your Pandora FMS console installed on $PANDORA_HOME."
	echo " "
	echo "Now you can setup your Pandora FMS console and install"
	echo "database using a browser and point to: "
	echo " " 
	echo "	http://ip_address_of_this_server/pandora/install.php"
	echo " "
	echo " "
}

help () {
	echo "    --force-install     To force installation if already installed on this system"
	echo "    --install           To install Pandora FMS Console on this system"
	echo " "
}

# Script banner at start
echo " "
echo "Pandora FMS Console Installer $PI_VERSION (c) 2008-2011 ArticaST"
echo "This program is licensed under GPL2 Terms. http://pandorafms.com"
echo " "

case "$MODE" in

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

'--install')
	install
	exit
	;;

'--uninstall')
	uninstall
	exit
	;;

*)
	help
esac