#!/bin/sh -e
#
# $FreeBSD$
#

# Script variables
SCRIPT="$(basename $0)"
BACKUP=".$(date "+%Y.%m.%d_%H:%M:%S")"

# System path
PREFIX="%%PREFIX%%"
RED5_HOME="%%RED5_HOME%%"
RED5_LOGS="%%RED5_LOGS%%"
RED5_USER="%%RED5_USER%%"
RED5_GROUP="%%RED5_GROUP%%"
TOMCAT_HOME="%%TOMCAT_HOME%%"
TOMCAT_LOGS="%%TOMCAT_LOGS%%"
TOMCAT_USER="%%TOMCAT_USER%%"
TOMCAT_GROUP="%%TOMCAT_GROUP%%"
FREESWITCH_USER="%%FREESWITCH_USER%%"
FREESWITCH_GROUP="%%FREESWITCH_GROUP%%"
WWWROOT="%%WWWROOT%%"
WWWDIR="%%WWWDIR%%"
ASTERISK_ETC="$PREFIX/etc/asterisk"
FREESWITCH_ETC="$PREFIX/etc/freeswitch"
NGINX_ETC="$PREFIX/etc/nginx"

# System commands
INSTALL_CMD="install -B $BACKUP"

# BBB security salt
BBB_SALT=""

# BBB common
BBB_SHAREDIR="%%DATADIR%%"
BBB_PRESENTATIONDIR="/var/spool/%%PORTNAME%%"
BBB_SRV_LIST=""
BBB_INSTALL_CONF="$BBB_PRESENTATIONDIR/conf.txt"

# BBB JDBC properties
BBB_DATABASE_TYPE="mysql"
BBB_DATABASE_HOST=""
BBB_DATABASE_NAME="%%PORTNAME%%"
BBB_DATABASE_URL=""
BBB_DATABASE_DRIVER="com.mysql.jdbc.Driver"
BBB_DATABASE_USERNAME="%%PORTNAME%%"
BBB_DATABASE_PASSWORD=""

# Conference module and type
BBB_CONFERENCE_MODULE=""
BBB_CONFERENCE_TYPE=""

# FreeSWITCH Event Socket Library (ESL)
BBB_ESL_HOST=""
BBB_ESL_PORT="8021"
BBB_ESL_PASSWORD=""

# Asterisk Management Interface (AMI)
BBB_AMI_HOST=""
BBB_AMI_PORT="5038"
BBB_AMI_USERNAME="bbb"
BBB_AMI_PASSWORD=""

# SIP
BBB_SIP_HOST=""
BBB_SIP_PORT="5070"
BBB_SIP_USERNAME="bbbuser"
BBB_SIP_PASSWORD=""

# All vars list
BBB_VAR_LIST="PREFIX WWWROOT WWWDIR \
	RED5_HOME RED5_LOGS RED5_USER RED5_GROUP \
	TOMCAT_HOME TOMCAT_LOGS TOMCAT_USER TOMCAT_GROUP \
	ASTERISK_ETC NGINX_ETC BBB_HOSTNAME BBB_IP_ADDRESS BBB_SALT \
	BBB_SHAREDIR BBB_PRESENTATIONDIR BBB_SRV_LIST BBB_INSTALL_CONF \
	BBB_DATABASE_TYPE BBB_DATABASE_HOST BBB_DATABASE_NAME BBB_DATABASE_URL \
	BBB_DATABASE_DRIVER BBB_DATABASE_USERNAME BBB_DATABASE_PASSWORD \
	BBB_CONFERENCE_MODULE BBB_CONFERENCE_TYPE \
	BBB_NO_KONFERENCE BBB_NO_MEETME \
	BBB_ESL_HOST BBB_ESL_PORT BBB_ESL_PASSWORD \
	BBB_AMI_HOST BBB_AMI_PORT BBB_AMI_USERNAME BBB_AMI_PASSWORD \
	BBB_SIP_HOST BBB_SIP_PORT BBB_SIP_USERNAME BBB_SIP_PASSWORD"

bbb_usage() {
	cat <<-EOF

	$1

	Install initial configuration:
	$SCRIPT install -h <hostname|ip address> -c <konference|meetme|freeswitch>

	Start all BigBlueButton services:
	$SCRIPT start

	Stop all BigBlueButton services:
	$SCRIPT stop

	Restart all bbb services:
	$SCRIPT restart

	EOF

	exit 1
}

bbb_random() {
	openssl rand -base64 48 | sed -E 's|[^A-Za-z0-9]||g' | cut -c 1-$1
}

bbb_install() {
	CHECK_PKGS="swftools ImageMagick mysql-server activemq nginx tomcat"
	CHECK_PKGS="$CHECK_PKGS red5"
	CHECK_DIRS="RED5_HOME TOMCAT_HOME WWWROOT WWWDIR NGINX_ETC BBB_SHAREDIR"

	case "$BBB_CONFERENCE_MODULE" in
	konference|meetme)
		CHECK_PKGS="$CHECK_PKGS asterisk"
		CHECK_DIRS="$CHECK_DIRS ASTERISK_ETC"
		;;
	freeswitch)
		CHECK_PKGS="$CHECK_PKGS freeswitch"
		CHECK_DIRS="$CHECK_DIRS FREESWITCH_ETC"
		;;
	esac

	for pkg in $CHECK_PKGS; do
		echo -n "Check package $pkg: "
		pkg_info -E ${pkg}\* || usage "$SCRIPT required $pkg package"
	done

	for var in $CHECK_DIRS; do
		eval val=\$$var
		echo -n "Check $var = '$val': "
		if [ -n "$val" -a -d "$val" ]; then
			echo "ok"
		else
			echo "not found"
			exit 2
		fi
	done

	BBB_SALT="$(bbb_random 32)"
	BBB_DATABASE_PASSWORD="$(bbb_random 16)"
	BBB_ESL_PASSWORD="$(bbb_random 16)"
	BBB_AMI_PASSWORD="$(bbb_random 16)"
	BBB_SIP_PASSWORD="$(bbb_random 16)"
	BBB_IP_ADDRESS="$(getent hosts "$BBB_HOSTNAME" | awk '{print $1}')"
	BBB_DATABASE_HOST="$BBB_IP_ADDRESS"
	BBB_DATABASE_URL="jdbc:$BBB_DATABASE_TYPE://$BBB_DATABASE_HOST/$BBB_DATABASE_NAME"
	BBB_ESL_HOST="$BBB_IP_ADDRESS"
	BBB_AMI_HOST="$BBB_IP_ADDRESS"
	BBB_SIP_HOST="$BBB_IP_ADDRESS"

	for var in $BBB_VAR_LIST; do
		eval val=\$$var
		BBB_REPLACE="$BBB_REPLACE -e s|%%$var%%|$val|g"
	done

	$INSTALL_CMD -d -m 0777 $BBB_PRESENTATIONDIR
	mkdir -p /etc/rc.conf.d

	echo "Configure activemq: rc.conf"
	BBB_SRV_LIST="activemq"
	cat >/etc/rc.conf.d/activemq <<-EOF
	activemq_enable="YES"
	EOF

	echo -n "Configure $BBB_DATABASE_TYPE: drop/create/grant"
	(/usr/local/etc/rc.d/mysql-server onestatus || /usr/local/etc/rc.d/mysql-server onestart) >/dev/null 2>&1
	mysql -u root >/dev/null <<-EOF
	drop database if exists $BBB_DATABASE_NAME;
	create database $BBB_DATABASE_NAME;
	grant all on $BBB_DATABASE_NAME.* to '$BBB_DATABASE_USERNAME'@'$BBB_DATABASE_HOST' identified by '$BBB_DATABASE_PASSWORD';
	commit;
	EOF

	echo " rc.conf"
	BBB_SRV_LIST="$BBB_SRV_LIST mysql-server"
	cat >/etc/rc.conf.d/mysql <<-EOF
	mysql_enable="YES"
	EOF

	/usr/local/etc/rc.d/mysql-server stop >/dev/null 2>&1

	echo -n "Configure $BBB_CONFERENCE_TYPE:"
	case "$BBB_CONFERENCE_MODULE" in
	konference|meetme)
		cd $ASTERISK_ETC
		for i in extensions sip; do
			echo -n " bbb_$i.conf"
			$INSTALL_CMD -m 0600 $BBB_SHAREDIR/asterisk/bbb_$i.conf-dist bbb_$i.conf
			sed -i '' $BBB_REPLACE bbb_$i.conf
		done

		for i in $(jot - 3000 3029); do
			cat <<-EOF
			[$i]
			type=friend
			username=$i
			insecure=very
			qualify=yes
			nat=yes
			host=dynamic
			canreinvite=no
			context=bbb-voip
			disallow=all
			allow=ulaw

			EOF
		done >>bbb_sip.conf

		echo -n " extensions.conf"
		$INSTALL_CMD -m 0600 extensions.conf-dist extensions.conf
		cat >>extensions.conf <<-EOF
		#include "bbb_extensions.conf"
		EOF

		echo -n " sip.conf"
		$INSTALL_CMD -m 0600 sip.conf-dist sip.conf
		cat >>sip.conf <<-EOF
		#include "bbb_sip.conf"
		EOF

		echo -n " modules.conf"
		$INSTALL_CMD -m 0600 modules.conf-dist modules.conf
		case "$BBB_CONFERENCE_MODULE" in
		konference)
			cat >>modules.conf <<-EOF
			noload => codec_dahdi.so 
			noload => app_meetme.so
			load => app_konference.so
			EOF
			;;
		meetme)
			$INSTALL_CMD $PREFIX/etc/zaptel.conf.sample \
				$PREFIX/etc/zaptel.conf
			cat >>modules.conf <<-EOF
			noload => codec_dahdi.so 
			load => app_meetme.so
			noload => app_konference.so
			EOF

			BBB_SRV_LIST="$BBB_SRV_LIST zaptel"
			cat >/etc/rc.conf.d/zaptel <<-EOF
			zaptel_enable="YES"
			zaptel_kmod_load="zaptel.ko ztdummy.ko"
			EOF
			;;
		esac

		echo -n " manager.conf"
		$INSTALL_CMD -m 0600 manager.conf-dist manager.conf
		sed -i '' 's|^enabled.*$|enabled = yes|' manager.conf
		cat >>manager.conf <<-EOF
		[$BBB_AMI_USERNAME]
		secret = $BBB_AMI_PASSWORD
		permit = 0.0.0.0/0.0.0.0
		read = system,call,log,verbose,command,agent,user
		write = system,call,log,verbose,command,agent,user
		EOF

		echo " rc.conf"
		BBB_SRV_LIST="$BBB_SRV_LIST asterisk"
		cat >/etc/rc.conf.d/asterisk <<-EOF
		asterisk_enable="YES"
		EOF
		;;
	freeswitch)
		cd $FREESWITCH_ETC
		echo -n " backup"
		mv conf conf$BACKUP

		echo -n " extract"
		(cd $BBB_SHAREDIR/freeswitch && tar cf - conf) | tar xf -
		chown -R $FREESWITCH_USER:$FREESWITCH_GROUP conf
		cd conf

		echo -n " event_socket.conf.xml"
		$INSTALL_CMD -m 0600 -o $FREESWITCH_USER -g $FREESWITCH_GROUP \
			autoload_configs/event_socket.conf.xml-dist \
			autoload_configs/event_socket.conf.xml
		sed -i '' $BBB_REPLACE autoload_configs/event_socket.conf.xml

		echo -n " acl.conf.xml"
		$INSTALL_CMD -m 0600 -o $FREESWITCH_USER -g $FREESWITCH_GROUP \
			autoload_configs/acl.conf.xml-dist \
			autoload_configs/acl.conf.xml
		sed -i '' $BBB_REPLACE autoload_configs/acl.conf.xml

		echo -n " $BBB_SIP_USERNAME.xml"
		$INSTALL_CMD -m 0600 -o $FREESWITCH_USER -g $FREESWITCH_GROUP \
			directory/default/bbbuser.xml-dist \
			directory/default/$BBB_SIP_USERNAME.xml
		sed -i '' $BBB_REPLACE directory/default/$BBB_SIP_USERNAME.xml

		echo " rc.conf"
		BBB_SRV_LIST="$BBB_SRV_LIST freeswitch"
		cat >/etc/rc.conf.d/freeswitch <<-EOF
		freeswitch_enable="YES"
		freeswitch_flags="-ncwait -waste -nonat"
		EOF
		;;
	esac

	echo "Configure openoffice: rc.conf"
	BBB_SRV_LIST="$BBB_SRV_LIST openoffice"
	cat >/etc/rc.conf.d/openoffice <<-EOF
	openoffice_enable="YES"
	EOF

	echo -n "Configure tomcat:"
	chown -R $TOMCAT_USER:$TOMCAT_GROUP $TOMCAT_LOGS
	cd $TOMCAT_HOME/webapps/bigbluebutton

	echo -n " bbb_api_conf.jsp"
	$INSTALL_CMD -m 0600 -o $TOMCAT_USER -g $TOMCAT_GROUP \
		demo/bbb_api_conf.jsp-dist \
		demo/bbb_api_conf.jsp

	echo -n " bigbluebutton.properties"
	$INSTALL_CMD -m 0600 -o $TOMCAT_USER -g $TOMCAT_GROUP \
		WEB-INF/classes/bigbluebutton.properties-dist \
		WEB-INF/classes/bigbluebutton.properties

	echo -n " log4j.properties"
	$INSTALL_CMD -m 0600 -o $TOMCAT_USER -g $TOMCAT_GROUP \
		WEB-INF/classes/log4j.properties-dist \
		WEB-INF/classes/log4j.properties
	sed -i '' $BBB_REPLACE demo/bbb_api_conf.jsp \
		WEB-INF/classes/bigbluebutton.properties \
		WEB-INF/classes/log4j.properties

	echo " rc.conf"
	BBB_SRV_LIST="$BBB_SRV_LIST tomcat6"
	cat >/etc/rc.conf.d/tomcat60 <<-EOF
	tomcat60_enable="YES"
	tomcat60_stop_timeout="30"
	EOF

	echo -n "Configure red5:"
	if grep -q '127\.0\.0\.1' $RED5_HOME/conf/red5.properties; then
		echo -n " red5.properties"
		sed -i $BACKUP 's|127\.0\.0\.1|0.0.0.0|g' $RED5_HOME/conf/red5.properties
	fi

	cd $RED5_HOME/webapps/bigbluebutton/WEB-INF
	echo -n " red5-web.xml"
	$INSTALL_CMD -m 0600 -o $RED5_USER -g $RED5_GROUP \
		red5-web.xml-dist \
		red5-web.xml
	sed -i '' $BBB_REPLACE red5-web.xml

	echo -n " bigbluebutton.properties"
	$INSTALL_CMD -m 0600 -o $RED5_USER -g $RED5_GROUP \
		bigbluebutton.properties-dist \
		bigbluebutton.properties
	sed -i '' $BBB_REPLACE bigbluebutton.properties

	cd $RED5_HOME/webapps/sip/WEB-INF
	echo -n " bigbluebutton-sip.properties"
	$INSTALL_CMD -m 0600 -o $RED5_USER -g $RED5_GROUP \
		bigbluebutton-sip.properties-dist \
		bigbluebutton-sip.properties
	sed -i '' $BBB_REPLACE  bigbluebutton-sip.properties

	echo " rc.conf"
	BBB_SRV_LIST="$BBB_SRV_LIST red5"
	RED5_RMI_PORT=$(awk -F= '/^jmx.rmi.port.registry/{print $2}' $RED5_HOME/conf/red5.properties)
	RED5_RMI_USER=$(awk '/^[^#].+readwrite$/{print $1}' $RED5_HOME/conf/access.properties | head -1)
	RED5_RMI_PASSWD=$(awk '/^'$RED5_RMI_USER'[\ \t]+/{print $2}' $RED5_HOME/conf/password.properties)
	
	cat >/etc/rc.conf.d/red5 <<-EOF
	red5_enable="YES"
	red5_stop_timeout="30"
	red5_stop_class_opts="$RED5_RMI_PORT $RED5_RMI_USER $RED5_RMI_PASSWD"
	EOF

	echo -n "Configure nginx:"
	cd $NGINX_ETC
	mkdir -p sites-available sites-enabled

	echo -n " nginx.conf"
	$INSTALL_CMD $BBB_SHAREDIR/nginx/nginx.conf-dist nginx.conf

	echo -n " bigbluebutton.conf"
	$INSTALL_CMD $BBB_SHAREDIR/nginx/nginx-bigbluebutton.conf-dist \
		sites-available/bigbluebutton.conf
	sed -i '' $BBB_REPLACE nginx.conf sites-available/bigbluebutton.conf
	cd sites-enabled
	rm -f bigbluebutton.conf
	ln -s ../sites-available/bigbluebutton.conf \
		bigbluebutton.conf
	cd $WWWDIR/client/conf

	echo -n " config.xml"
	$INSTALL_CMD config.xml-dist config.xml
	sed -i '' $BBB_REPLACE config.xml

	echo " rc.conf"
	BBB_SRV_LIST="$BBB_SRV_LIST nginx"
	cat >/etc/rc.conf.d/nginx <<-EOF
	nginx_enable="YES"
	EOF

	echo -n "Save config:"
	$INSTALL_CMD -m 0600 /dev/null $BBB_INSTALL_CONF
	cat >$BBB_INSTALL_CONF <<-EOF
	#
	# ${BACKUP#.}
	#
	EOF

	for var in $BBB_VAR_LIST; do
		eval val=\$$var
		cat >>$BBB_INSTALL_CONF <<-EOF
		$var="$val"
		EOF
	done
	echo " $BBB_INSTALL_CONF"
}

bbb_start() {
	for i in $BBB_SRV_LIST; do
		$PREFIX/etc/rc.d/$i start || true
	done
}

bbb_stop() {
	for i in $BBB_SRV_LIST; do
		REVERSE_SRV_LIST="$i $REVERSE_SRV_LIST"
	done

	for i in $REVERSE_SRV_LIST; do
		$PREFIX/etc/rc.d/$i stop || true
	done
}

bbb_restart() {
	bbb_stop
	bbb_start
}

if [ "`/usr/bin/id -u`" != "0" ]; then
	bbb_usage "$SCRIPT must be run as root"
fi

if [ $# -eq 0 ]; then
	bbb_usage "$SCRIPT <install|start|stop|restart> [options]"
fi

BBB_ACTION="$1"
shift

while getopts :h:c: OPT; do
	case "$OPT" in
	h)
		BBB_HOSTNAME="$OPTARG"
		;;
	c)
		BBB_CONFERENCE_MODULE="$OPTARG"
		;;
	*)
		bbb_usage "Error: '$OPTARG' is not a valid option"
		;;
	esac
done

case "$BBB_ACTION" in
install)
	if [ -z "$BBB_HOSTNAME" ]; then
		bbb_usage "Error: 'install' action required '-h' option"
	else
		if ! getent hosts "$BBB_HOSTNAME" >/dev/null 2>&1; then
			bbb_usage "Error: hostname '$BBB_HOSTNAME' not found by getent command"
		fi
	fi

	if [ -z "$BBB_CONFERENCE_MODULE" ]; then
		bbb_usage "Error: 'install' action required '-c' option"
	else
		case "$BBB_CONFERENCE_MODULE" in
		konference)
			test -f $PREFIX/lib/asterisk/modules/app_konference.so || bbb_usage "Error: app_konference.so not found. Please reinstall %%PORTNAME%% with KONFERENCE option"
			BBB_CONFERENCE_TYPE="asterisk"
			BBB_NO_KONFERENCE=""
			BBB_NO_MEETME=";"
			;;
		meetme)
			test -f $PREFIX/lib/asterisk/modules/app_meetme.so || bbb_usage "Error: app_meetme.so not found. Please reinstall %%PORTNAME%% with MEETME option"
			BBB_CONFERENCE_TYPE="asterisk"
			BBB_NO_KONFERENCE=";"
			BBB_NO_MEETME=""
			;;
		freeswitch)
			test -f $PREFIX/bin/freeswitch || bbb_usage "Error: freeswitch not found. Please reinstall %%PORTNAME%% with FREESWITCH option"
			BBB_CONFERENCE_TYPE="freeswitch"
			;;
		*)
			bbb_usage "Error: unknown conference module '$BBB_CONFERENCE_TYPE'"
			;;
		esac
	fi
	bbb_install
	;;
start|stop|restart)
	if [ -n "$BBB_HOSTNAME" -o -n "$BBB_CONFERENCE_MODULE" ]; then
		bbb_usage "Error: '$BBB_ACTION' action do not allow any options"
	fi

	if [ -s "$BBB_INSTALL_CONF" ]; then
		. $BBB_INSTALL_CONF
	else
		bbb_usage "Error: '$BBB_ACTION' action allow only after install"
	fi

	eval bbb_$BBB_ACTION
	;;
*)
	bbb_usage "Error: '$BBB_ACTION' is not valid action"
	;;
esac

exit 0