#!/bin/sh
#   Copyright (C) 2006-2007 LAMS Foundation (http://lamsfoundation.org)
#   License Information: http://lamsfoundation.org/licensing/lams/2.0/
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License version 2.0 
#   as published by the Free Software Foundation.
# 
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
# 
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software
#   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
#   USA
# 
#   http://www.gnu.org/licenses/gpl.txt 
#
#   Author: Luke Foxton 

# Installer shell script for LAMS 2.0.2

# Usage: sudo ./install.sh

JAVA_REQ_VERSION=1.5
# Transform the required version string into a number that can be used in comparisons
JAVA_REQ_VERSION=`echo $JAVA_REQ_VERSION | sed -e 's;\.;0;g'`

# getting all the lams.properties variables into the variable space
. ./lams.properties

wrapper=""

checkJava()
{
	$JDK_DIR/bin/java -cp bin testJava	
	if [  "$?" -ne  "0" ]
        then
		echo "Install failed. Could not verify java installation, check your lams.properties file for the correct JDK_DIR entry, and that you have set your JAVA_HOME and PATH environment variables correctly."
		echo "Refer to the readme for help with setting up java for LAMS."
       		exit 1
        fi

	
	
	
	# Check JAVA_HOME directory to see if Java version is adequate
	if [ $JAVA_HOME ]
	then
		JAVA_EXE=$JAVA_HOME/bin/java
		$JAVA_EXE -version 2> tmp.ver
		VERSION=`cat tmp.ver | grep "java version" | awk '{ print substr($3, 2, length($3)-2); }'`
		rm tmp.ver
		VERSION=`echo $VERSION | awk '{ print substr($1, 1, 3); }' | sed -e 's;\.;0;g'`
		if [ $VERSION ]
		then
			if [ $VERSION -ge $JAVA_REQ_VERSION ]
			then
				JAVA_HOME=`echo $JAVA_EXE | awk '{ print substr($1, 1, length($1)-9); }'`
			else
				JAVA_HOME=
			fi
		else
			JAVA_HOME=
		fi
	fi

	# If the existing JAVA_HOME directory is adequate, then leave it alone
	# otherwise, use 'locate' to search for other possible java candidates and
	# check their versions.
	if [ $JAVA_HOME ]
	then
		:
	else
		for JAVA_EXE in `locate bin/java | grep java$ | xargs echo`
		do
			if [ $JAVA_HOME ] 
			then
				:
			else
				$JAVA_EXE -version 2> tmp.ver 1> /dev/null
				VERSION=`cat tmp.ver | grep "java version" | awk '{ print substr($3, 2, length($3)-2); }'`
				rm tmp.ver
				VERSION=`echo $VERSION | awk '{ print substr($1, 1, 3); }' | sed -e 's;\.;0;g'`
				if [ $VERSION ]
				then
					if [ $VERSION -ge $JAVA_REQ_VERSION ]
					then
						JAVA_HOME=`echo $JAVA_EXE | awk '{ print substr($1, 1, length($1)-9); }'`
					fi
				fi
			fi
		done
	fi

	# If the correct Java version is detected, then export the JAVA_HOME environment variable
	if [ $JAVA_HOME ]
	then
		export JAVA_HOME
	else
		echo "No installation of java found, please set your JAVA_HOME to point to java 1.5 or newer, then run the installer."
		exit 0
	fi
}

checkMysql()
{	
        if [ -x  "$SQL_DIR/mysql" ]
        then
		echo "Found mysql executable"
	else
		echo "Install failed, could not find sql executable at $SQL_DIR. Check your lams.properties file for correct configurations."
       		exit 1	
        fi

	sql_version=`$SQL_DIR/mysql -V | grep 5.`
	echo $sql_version
	if [ "$sql_version" ]
	then
		echo "Mysql executable valid."
	else
		echo "Install failed. Could not find MySql 5.0 or higher executable at $SQL_DIR. Check your lams.properties file and that your MySql installation is a compatible version for LAMS."
		exit 1
	fi
}

createDatabase()
{
        if [ $DB_ROOT_PASSWORD ]
        then
                $SQL_DIR/mysql -uroot -p$DB_ROOT_PASSWORD -e "SET FOREIGN_KEY_CHECKS=0"
                $SQL_DIR/mysql -uroot -p$DB_ROOT_PASSWORD -e "DROP DATABASE IF EXISTS $DB_NAME"
                $SQL_DIR/mysql -uroot -p$DB_ROOT_PASSWORD -e "CREATE DATABASE $DB_NAME DEFAULT CHARACTER SET utf8"
                $SQL_DIR/mysql -uroot -p$DB_ROOT_PASSWORD -e "SET FOREIGN_KEY_CHECKS=1"
                $SQL_DIR/mysql -uroot -p$DB_ROOT_PASSWORD -e "GRANT ALL PRIVILEGES ON *.* TO $DB_USER@localhost IDENTIFIED BY '$DB_PASS'"
                $SQL_DIR/mysql -uroot -p$DB_ROOT_PASSWORD -e "REVOKE PROCESS,SUPER ON *.* from $DB_USER@localhost"
                if [  "$?" -ne  "0" ]
                then
                        echo "Install Failed. Could not create database. Check that your root mysql password corresponds to the DB_ROOT_PASSWORD property in lams.properties\n."
                        exit 1
                fi
        else
                $SQL_DIR/mysql -uroot -e "SET FOREIGN_KEY_CHECKS=0"
                $SQL_DIR/mysql -uroot -e "DROP DATABASE IF EXISTS $DB_NAME"
                $SQL_DIR/mysql -uroot -e "CREATE DATABASE $DB_NAME DEFAULT CHARACTER SET utf8"
                $SQL_DIR/mysql -uroot -e "SET FOREIGN_KEY_CHECKS=1"
                $SQL_DIR/mysql -uroot -e "GRANT ALL PRIVILEGES ON *.* TO $DB_USER@localhost IDENTIFIED BY '$DB_PASS'"
                $SQL_DIR/mysql -uroot -e "REVOKE PROCESS,SUPER ON *.* from $DB_USER@localhost"
                if [  "$?" -ne  "0" ]
                then
                        echo "Install Failed. Could not create database. Check that your root mysql password corresponds to the DB_ROOT_PASSWORD property in lams.properties\n."
                        exit 1
                fi
        fi

	# Filling the database with tables
	$SQL_DIR/mysql -u$DB_USER -p$DB_PASS $DB_NAME < database/lams.dump
	if [  "$?" -ne  "0" ]
        then
        	echo "Install Failed. Error filling datbase with tables. Check your database settings and try again."
	        exit 1
        fi

	# Applying the settings from lams.properties to the lams_configuration table
	ant/bin/ant -buildfile ant-scripts/filter-config.xml  -logfile log/filter-config.log filter-config
	if [  "$?" -ne  "0" ]
        then
        	echo "Installation Failed. Error during ant tasks, check log/filter-config.log for details and check your lams.properties for mistakes."
        	exit 1
	fi

	
	printf "Configuring LAMS database with your settings..."
	# running the sql script
	$SQL_DIR/mysql -u$DB_USER -p$DB_PASS $DB_NAME < sql-scripts/setLamsConfiguration.sql
	if [  "$?" -ne  "0" ]
        
then
        	echo "Install failed. Error updating database with LAMS configuration. Check your MySql settings and try again."
        	exit 1
	fi

	printf "Done. \n"

}

chooseWrapper()
{
        isMac=`uname -a | grep Mac`
        if [ $isMac ]
        then
                printf "\nIt looks like you have a Macintosh. We can't install the wrapper automatically for Macs. If you want to use the wrapper, you will need to install it manually. \nSee http://wiki.lamsfoundation.org/display/lamsdocs/Setup+Java+Service+Wrapper+for+LAMS.\n"
                read temp
        else
                isMac=`uname -a | grep Darwin`
                if [ $isMac ]
                then
                        printf "\nIt looks like you have a Macintosh. We can't install the wrapper automatically for Macs. If you want to use the wrapper, you will need to install it manually. \nSee http://wiki.lamsfoundation.org/display/lamsdocs/Setup+Java+Service+Wrapper+for+LAMS.\n"
                        read temp
                else
                        arch=`uname -m`
                        if [ $arch = i386 ]
                        then
                                wrapper=wrapper-linux-x86-32-3.2.3
                        fi

                        if [ $arch = "ia64" ] || [ $arch = "IA64" ]
                        then
                                wrapper=wrapper-linux-x86-64-3.2.3
                        fi

                        if [ $arch = "ppc" ]|| [ $arch = "PPC" ]
                        then
                                wrapper=wrapper-linux-ppc-64-3.2.3
                        fi

                        if [ $wrapper ]
                        then
                                printf "\nThe installer has detected that you need this wrapper: $wrapper\n"
                                printf "If you wish to use one of the others please select it instead.\n"
                        else
                                printf "\nThe installer could not detect a suitable wrapper, please select one from below.\n"
                        fi
                        printf "(1) wrapper-linux-x86-32-3.2.3\n"
                        printf "(2) wrapper-linux-x86-64-3.2.3\n"
                        printf "(3) wrapper-linux-ppc-64-3.2.3\n"
                        printf "(n) No wrapper, continue with install\n"
                        printf "(q) quit\n"
                        printf "> "
                        input=""
                        read input

                        case "$input" in
                        1)
                                wrapper=wrapper-linux-x86-32-3.2.3
                                ;;
                        2)
                                wrapper=wrapper-linux-x86-64-3.2.3
                                ;;
                        3)
                                wrapper=wrapper-linux-ppc-64-3.2.3
                                ;;
                        q)
                                printf "\n\nBye!\n\n"
                               	exit 0
				;;
			n)
				wrapper=""
				;;
			*)
				printf "\nPlease type 1, 2, 3, n or q and press enter.\n"
				chooseWrapper
				;;
			esac

		fi
	fi
}



installWrapper()
{
        printf "\nDo you wish to install LAMS as a Java Service Wrapper? (y)es, (n)o, (q)uit: "
        input=""
        read input

        case "$input" in
        q)
           	printf "\n\nBye!\n\n" 
                exit 0
                ;;
        y)
		chooseWrapper
		;;
        n)
                ;;
        *)
                printf "\nPlease enter y, n or q.\n"
                installWrapper
                ;;
        esac
}

configureWrapper()
{
	if [ $wrapper ]
	then
		printf "\n\nInstalling and configuring Java Service Wrapper: $wrapper\n"
		cp "wrapper/$wrapper/bin/wrapper" "$JBOSS_DIR/bin"
		cp "wrapper/sh.script.in" "$JBOSS_DIR/bin/lams2"
		
		cp "wrapper/$wrapper/lib/libwrapper.so" "wrapper/$wrapper/lib/wrapper.jar" "$JBOSS_DIR/lib"
		#cp "wrapper/wrapper.conf.in" "$JBOSS_DIR/conf/wrapper.conf"
		ant/bin/ant -buildfile ant-scripts/configure-deploy.xml -logfile log/configure-wrapper.log configure-wrapper
		if [  "$?" -ne  "0" ]
  	    	then
        		echo "\nInstall Failed. Problem while configuring wrapper. Please configure-wrapper.log for details.\n\n"
        		exit 1
		fi


		if [ -f "$JBOSS_DIR/logs/" ]
		then
			printf " "
		else
			mkdir "$JBOSS_DIR/logs/"
		fi
		cp wrapper/run.sh "$JBOSS_DIR/bin"
		
		if [ -f /etc/init.d/lams2 ]
		then
			rm /etc/init.d/lams2
		fi
		link "$JBOSS_DIR/bin/lams2" /etc/init.d/lams2
		printf "Done.\n\n"
	fi
}

checkJboss()
{
	if [ -f "$JBOSS_DIR/lib/jboss-common.jar" ]
	then
  		echo "JBoss Directory Found"
	else
		printf "\n\nInstall Failed. No installation of JBoss-4.0.2 was found at $JBOSS_DIR. Please check your lams.properties file and retry.\n\n"
		exit 1
	fi	
}

checkJava
checkMysql
checkJboss

clear
printf "\n--------------------------------------------------------------------------------\n\n"
printf "WELCOME to the LAMS $LAMS_VERSION unix Installer! \n\n"
printf "Please ensure you have read and accepted the licence agreement before continuing\n\n"
printf "Make sure you have correctly configured the lams.properties file to your \n"
printf "preferred settings.\n\n"
printf "You should read the installation guide before continuing.\n"
printf "\nJAVA_HOME = $JAVA_HOME\n"
printf "\n--------------------------------------------------------------------------------\n\n"

printf "LAMS requires about 117MB of space, do you wish to continue? (y)es, (n)o: "
continue=""
read continue
case "$continue" in
y)
	;;
n)	printf "\nBye!\n\n"
	exit 0 
	;;
*)  	printf "\n\n"
	exit 1
	;;
esac

# Choosing whether to install the wrapper
installWrapper


printf "\nCreating LAMS database with the following parameters...\n"
printf "Database name: $DB_NAME\n"
printf "Database user: $DB_USER\n"
printf "Database password: $DB_PASS\n"
createDatabase
printf "\nDatabase Created.\n\n"

# Copying the main lams files
printf "Copying lams.ear directory to $JBOSS_DIR/server/default/deploy.\n"
cp -rv assembly/lams.ear $JBOSS_DIR/server/default/deploy
printf "\nDone.\n\n"
if [  "$?" -ne  "0" ]
        then
        echo "Install Failed. Problem while copying the jboss-4.0.2 directory, please try again."
       	exit 1
fi



# Configuring jboss with settings from lams.properties
printf "Configuring JBoss with your settings.\n"
ant/bin/ant -buildfile ant-scripts/configure-deploy.xml -logfile log/copy-conf.log copy-conf
if [  "$?" -ne  "0" ]
        then
        echo "Install Failed. Problem while copying the jboss-4.0.2 configuration files, check log/configure-deploy.log for details."
        exit 1
fi

chmod 755 $JBOSS_DIR/bin/run-lams.sh

# configure the wrapper
printf "\nConfiguring the java Wrapper\n"
configureWrapper

# configure jboss
cp $JBOSS_DIR/server/all/lib/jgroups.jar $JBOSS_DIR/server/all/lib/jboss-cache.jar $JBOSS_DIR/server/default/lib
cp assembly/lams-session.jar  assembly/lams-valve.jar $JBOSS_DIR/server/default/lib
if [  "$?" -ne  "0" ]
        then
        echo "\nInstall Failed. Problem while configuring JBoss, please ensure you have the correct version of JBoss (4.0.2).\n\n"
        exit 1
fi


printf "Copying lams.properties to /etc.\n"
if [ -f /etc/lams2 ]
then	
	mkdir /etc/lams2
	cp lams.properties /etc/lams2
else
	cp lams.properties /etc/lams2
fi

printf "\n\nLAMS 2.0.2 Configuration completed!\n"
printf "Please view the README for instructions on how to run LAMS.\n\n"