#!/bin/bash 
#
# Copyright (c) 2008-2009 by BigBlueButton
#
# This file is part of BigBlueButton - http://www.bigbluebutton.org
#
# BigBlueButton is free software; you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# BigBlueButton 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with BigBlueButton; if not, see <http://www.gnu.org/licenses/>.
#
# Author(s):
#       Fred Dixon <ffdixon@bigbluebutton.org>
#
# Changelog:
#       2009-10-18 FFD  Inital Version
#       2009-11-05 FFD  Updated for 0.62
#       2009-12-09 FFD  Updated for 0.63
#       2009-12-11 FFD  Added ability to swtich conference servers
#       2009-12-12 FFD  Added cleaning and watching of log files
#       2010-01-05 FFD  Added zipping of log files
#       2010-01-18 FFD  Added resetting of environment back to using packages
#       2010-03-02 JRT  Added trunk checkout options / fixed bbb-apps instructions
#       2010-04-02 FFD  Updated for 0.64
#	2010-06-21 SEB  Cleaned up some code / Updated for 0.70
#	2010-06-25 SEB  Added ability to change the security salt
#	2010-06-30 SEB	Added some extra errorchecking
#	2010-07-06 SEB	Added more errorchecking and report messages

#set -x

GENTOO=$(uname -r | grep gentoo | cut -d- -f2);
TOMCAT=""

get_platform() {

	if [ -f /etc/lsb-release ]; then
		if grep -q Ubuntu /etc/lsb-release; then
			echo "ubuntu"
		fi
	elif [ ${GENTOO} ]; then
		echo "gentoo"
	else
		echo "redhat"
	fi
}


PLATFORM=$(get_platform)

is_redhat() {
	if [ "$PLATFORM" == "redhat" ]; then
		echo "yes"
	fi
}

is_ubuntu() {
	if [ "$PLATFORM" == "ubuntu" ]; then
                echo "yes"
        fi
}

is_gentoo() {
	if [ "$PLATFORM" == "gentoo" ]; then
		echo "yes"
	fi
}

is_vm() {
	if [ -f /home/firstuser/.profile ]; then
		echo $(cat /home/firstuser/.profile | grep BigBlueButton)
	fi
}

if [ "$(is_redhat)" ]; then
	TOMCAT="tomcat6"
	RED5_DIR="/usr/share/red5"
	ACTIVEMQ_DIR="/usr/share/activemq"
	TOMCAT6_LOGS="/var/log/${TOMCAT}"
elif [ "$(is_gentoo)" ]; then
	TOMCAT="tomcat-6"
	RED5_DIR="/usr/share/red5"
	ACTIVEMQ_DIR="/usr/share/activemq"
	TOMCAT6_LOGS="/var/lib/${TOMCAT}/logs"
else 
	if [ "$(is_ubuntu)" ]; then
		TOMCAT="tomcat6"
		RED5_DIR="/usr/share/red5"
		ACTIVEMQ_DIR="/usr/share/activemq"
		TOMCAT6_LOGS="/var/lib/${TOMCAT}/logs"
	fi
fi


print_header() {
	if [ ! $HEADER ]; then
		echo
		echo "** Potential Problems **"
		HEADER=1
	fi
}

check_root() {
	if [ $EUID == 0 ]; then
		echo "This operation should not be run as root."
		echo 
		echo "If this operation needs to execute an operation as root, you'll be asked for"
		echo "your password to execute the operation using sudo."
		exit 1
	fi
}

need_root() {
	if [ $EUID != 0 ]; then
		echo "Need to be root to run this option"
		exit 1
	fi
}

usage() {
	echo "BigBlueButton Configuration Utility - Version 0.70"
        echo "http://code.google.com/p/bigbluebutton/wiki/BBBConf"
        echo
        echo "$0 [options]"
        echo
        echo "Configuration:"
        echo "   --version                        Display BigBlueButton version (packages)"
        echo "   --setip <host>                   Set IP/hostname for BigBlueButton"
        echo "   --conference [konference|meetme] Switch conference module in Asterisk"
	echo "   --salt <salt>		    	  Change the security salt in bigbluebutton.properties"
        echo
        echo "Monitoring:"
        echo "   --check <verbose>                Check configuration files and processes for problems"
        echo "   --debug                          Scan the log files for error messages"
        echo "   --watch                          Scan the log files for error messages every 2 seconds"
        echo
        echo "Administration":
        echo "   --restart                        Restart BigBueButton"
        echo "   --clean                          Clear all the log files and restart BigBlueButton"
        echo "   --zip                            Zip up log files for reporting an error"
        echo
        if [ "$(is_vm)" ]; then
                echo "Development:"
                echo "   --setup-samba                    Setup samba share for development (VM only)"
                echo "   --checkout  <repo>               Checkout from github or passed in repository"
                echo "   --setup-dev [client|web|apps]	  Setup development environment "
                echo "   --reset-dev                      Reset environment back to using packages"
        fi
        echo
}

# utility function to make a copy of the conf file
check_and_backup () {
	# can we write to the configuration file?
	if [ ! -w $1 ]; then
		echo "Cannot write to $1!"
		exit 1
	fi

	# let's see if we need a copy
	if [ "$TO_BACKUP" = "Y" ]; then
		cp $1 $1.bak
		TO_BACKUP="N"
	fi
}

# 3 paramenter: the file, the variable name, the new value
change_var_value () {
	check_and_backup $1
	sed -i "s<^[[:blank:]#]*\(${2}\).*<\1=\"${3}\"<" $1
}
# same as change_var_value but without quotes
change_var_salt() {
	check_and_backup $1
	sed -i "s<^[[:blank:]#]*\(${2}\).*<\1="${3}"<" $1
}
# comment lines matching $2 ($1 is the file)
comment () {
	check_and_backup $1
	sed -i "s<^[[:blank:]]*\(${2}.*\)<#\1<" $1
}
# comment lines matching $2 ($1 is the file)
uncomment () {
	check_and_backup $1
	sed -i "s<^[#[:blank:]]*\(${2}.*\)<\1<" $1
}

stop_bigbluebutton () {
        /etc/init.d/red5 stop
        /etc/init.d/${TOMCAT} stop
        /etc/init.d/nginx stop
        /etc/init.d/asterisk stop
        /etc/init.d/activemq stop

}

start_bigbluebutton () {
	/etc/init.d/asterisk start
	/etc/init.d/activemq start
	sleep 5
	/etc/init.d/nginx start
	/etc/init.d/red5 start
	/etc/init.d/${TOMCAT} start
}

display_bigbluebutton_status () {
	/etc/init.d/asterisk status
	/etc/init.d/activemq status
	/etc/init.d/nginx status
	/etc/init.d/red5 status
	/etc/init.d/${TOMCAT} status
}

if [ $# -eq 0 ]; then
	usage
	exit 1
fi

# Parse the parameters
while [ $# -gt 0 ]; do
	if [ "$1" = "-check" -o "$1" = "--check" -o "$1" = "-c" ]; then
		if [ $# -lt 2 ]; then
                        CHECK_VERBOSE=0
                else
                        CHECK_VERBOSE=1
                fi

		CHECK=1
		shift;shift 
		continue
	fi

	if [ "$1" = "--setup-samba" -o "$1" = "-setup-samba" ]; then
		SAMBA=1
		shift
		continue
	fi		

	if [ "$1" = "--version" -o "$1" = "-version" -o "$1" = "-v" ]; then
		VERSION=1
		shift
		continue
	fi		

	if [ "$1" = "--debug" -o "$1" = "-debug" -o "$1" = "-d" ]; then
		DEBUG=1
		shift
		continue
	fi

	if [ "$1" = "--clean" -o "$1" = "-clean" ]; then
		CLEAN=1
		shift
		continue
	fi

	if [ "$1" = "--watch" -o "$1" = "-watch" -o "$1" = "-w" ]; then
		WATCH=1
		shift
		continue
	fi

	if [ "$1" = "--network" -o "$1" = "-network" -o "$1" = "-n" ]; then
		NETWORK=1
		shift
		continue
	fi

	if [ "$1" = "--zip" -o "$1" = "-zip" -o "$1" = "-z" ]; then
		ZIP=1
		shift
		continue
	fi

	if [ "$1" = "--reset-dev" -o "$1" = "-reset-dev" -o "$1" = "-r" ]; then
		RESET_DEV=1
		shift
		continue
	fi

	if [ "$1" = "--restart" -o "$1" = "-restart" ]; then
                RESTART=1
                shift
                continue
        fi

	if [ "$1" = "--checkout" -o "$1" = "-checkout" ]; then
		echo "# Request to checkout BigBlueButton"
		if [ $# -lt 2 ]; then
			CHECKOUT="git://github.com/bigbluebutton/bigbluebutton.git"
		else
			CHECKOUT="${2}"
		fi	
		shift; shift
		continue
	fi		

	#
	# all other parameters requires at least 1 argument
	#
	
	if [ $# -lt 2 ]; then
		usage
		exit 1
	fi

	if [ "$1" = "-setip" -o "$1" = "--setip" ]; then
		HOST="${2}"
		if echo $HOST|grep -q ":"; then
			HOST=`echo ${2}|cut -d: -f1`
			PORT=`echo ${2}|cut -d: -f2`
		fi
		shift; shift
		continue
	fi		

        if [ "$1" = "--setup-dev" -o "$1" = "-setup-dev" ]; then
                SETUPDEV="${2}"
                shift; shift
                continue
        fi

	if [ "$1" = "--conference" -o "$1" = "-conference" ]; then
		CONFERENCE="${2}"
		shift; shift
		continue
	fi		
	
	if [ "$1" = "--salt" -o "$1" = "-salt" ]; then
		SALT="${2}"
		shift; shift
		continue
	fi

	usage 
	exit 1
done


#
# Version 
#
if [ $VERSION ]; then
	if [ "$(is_redhat)" ]; then
		echo "$(yum list installed | grep bbb-conf)"
	else 
		if [ "$(is_ubuntu)" ]; then
			echo 
			dpkg -l | grep bbb
		fi
	fi
	exit 0
fi


#
# Setup samba
#

if [ $SALT ]; then
	need_root
#	echo $SALT;
	change_var_salt /var/lib/$TOMCAT/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties beans.dynamicConferenceService.securitySalt $SALT
	echo "Changed the security salt to $SALT";
fi

if [ $SAMBA ]; then
	check_root

        #
        # Instal Samba
        #
        if ! dpkg-query -s samba > /dev/null 2>&1; then
                sudo apt-get install -y --force-yes samba ant
        fi

        #
        # Add a share to samba
        #
        if ! grep -q $USER /etc/samba/smb.conf; then

	IP=$(ifconfig | grep -v '127.0.0.1' | grep -m 1 'inet addr:' | cut -d: -f2 | awk '{ print $1}')

                echo ";
; BigBlueButton: Share the development directory
[$USER]
   comment = BigBlueButton Development share
   path = /home/$USER
   browseable = yes
   read only = no
   create mask = 0755
   directory mask = 0775
   guest ok = yes
   force user = $USER
" | sudo tee -a /etc/samba/smb.conf > /dev/null 2>&1

                sudo /etc/init.d/samba restart

        echo "
You can now access your development folder through:

        \\\\${IP}\\$USER

If you are running a development environment on Windows (such as using Eclipse or FlexBuilder),
you can map the above path to a drive letter.
"
        else
                echo "Already detected a definition for $USER in /etc/samba/smb.conf"
                echo "No changes were made to /etc/samba/smb.conf"
        fi
fi


#
# Setup the development environemnt.
#

if [ $CHECKOUT ]; then
	check_root

	# This is a step towards setting up a development environment on a non-BigBlueButton VM
	which git
	if [ $? != 0 ]; then
		echo "# Installing git and ant"
		sudo apt-get install git ant -y --force-yes
	fi
        
        BBBSRCGIT="~/dev/source/bigbluebutton"	
	if [ -d $BBBSRCGIT ]; then
		echo "# "
                echo "**** ERROR: ${BBBSRCGIT} exists. ***"
                echo "**** ERROR: You have already checked-out bigbluebutton. Please delete ${BBBSRCGIT} and try again. ***"
		echo "# "
		exit 1
        fi

        if [ ! -d ~/dev ]; then
		echo "# Creating dev directory"
		mkdir ~/dev
	fi

	echo "# Changing to the dev directory"
	cd ~/dev
	
	if [ ! -d ~/dev/source ]; then
                echo "# Creating source directory"
                mkdir ~/dev/source
        fi

	echo "# Changing to the dev directory"
        cd ~/dev/source

	echo "#                                         "
        echo "# Checking out BigBlueButton."
        echo "#                                         "
        echo "# "
        git clone $CHECKOUT
        echo "# "
        echo "#                                         "
        echo "# Checked out BigBlueButton. "
        echo "#                                         "
	echo " You can now run 'bbb-conf --setup-dev [client|web|apps]' to setup dev environment "
        echo "#                                         "
fi

if [ $SETUPDEV ]; then
        check_root

        if [ ! -d ~/dev/source/bigbluebutton ]; then
                echo "# "
                echo "*** ERROR: You haven't checked-out BigBlueButton source yet. Please run 'bbb-conf --checkout' first. "
                echo "# "
		exit 1
        fi


        if [ $SETUPDEV == "web" ]; then
	    	BBBWEBHOME=~/dev/source/bigbluebutton/bigbluebutton-web
            	if [ ! -d $BBBWEBHOME ]; then
			echo "# "
			echo "*** ERROR: Cannot find ${BBBWEBHOME} "
			echo "*** ERROR: You haven't checked-out BigBlueButton source yet. Please run 'bbb-conf --checkout' first. "
			echo "# "
			exit 1
	 	fi

                IP=$(ifconfig | grep -v '127.0.0.1' | grep -m 1 'inet addr:' | cut -d: -f2 | awk '{ print $1}')

                echo "# Copying the bigbluebutton.properites in /var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties to ~/.grails/bigbluebutton-config.properties"
                mkdir -p ~/.grails
                cp /var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties ~/.grails/bigbluebutton-config.properties

                echo "# Copying the bbb_api_conf.jsp into /var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties to ${BBBWEBHOME}/web-app/demo"
                cp /var/lib/${TOMCAT}/webapps/bigbluebutton/demo/bbb_api_conf.jsp ${BBBWEBHOME}/web-app/demo

                echo "# Enabling $USER to write to /var/bigbluebutton to upload slides"
                sudo chmod -R ugo+rwx /var/bigbluebutton

                echo "# Enabling $USER to write to /var/log/bigbluebutton to write log files"
                sudo chmod -R ugo+rwx /var/log/bigbluebutton

                echo "# Copying bbb-common-message-0.64.jar into ${BBBWEBHOME}/lib"
                if [ -f $RED5_DIR/webapps/bigbluebutton/WEB-INF/lib/bbb-common-message-0.64.jar ]; then
                        cp /usr/share/red5/webapps/bigbluebutton/WEB-INF/lib/bbb-common-message-0.64.jar ${BBBWEBHOME}/lib
                fi

                echo "
# Done.  To run your local build of bbb-web:

        sudo /etc/init.d/${TOMCAT} stop
        cd ${BBBWEBHOME}
        ant
"
        fi


        if [ $SETUPDEV == "client" ]; then
		BBBCLIENTHOME=~/dev/source/bigbluebutton/bigbluebutton-client
            	if [ ! -d $BBBCLIENTHOME ]; then
                        echo "# "
                        echo "*** ERROR: Cannot find ${BBBCLIENTHOME} "
                        echo "*** ERROR: You haven't checked-out BigBlueButton source yet. Please run 'bbb-conf --checkout' first. "
                        echo "# "
                        exit 1
                fi

                #
                # Setup the directories so we can point /etc/nginx/sites-available/bigbluebutton to this
                # local copy of the client
                #
                if [ ! -d $BBBCLIENTHOME/bin ]; then
                        mkdir -p $BBBCLIENTHOME/bin
                fi

                if [ ! -d $BBBCLIENTHOME/conf ]; then
                        mkdir -p $BBBCLIENTHOME/bin/conf
                fi

                if [ ! -h $BBBCLIENTHOME/client ]; then
                        ln -s $BBBCLIENTHOME/bin $BBBCLIENTHOME/client
                fi

                echo "Modifying /etc/nginx/sites-available/bigbluebutton to point to your local copy of bbb-client"
                sudo sed -i "s/\/var\/www\/bigbluebutton;/\/home\/firstuser\/dev\/source\/bigbluebutton\/bigbluebutton-client;/g" \
                        /etc/nginx/sites-available/bigbluebutton
                sudo /etc/init.d/nginx restart

                echo "# Copying /var/www/bigbluebutton/client/conf/config.xml to ${BBBCLIENTHOME}/src/conf/config.xml"
                cp /var/www/bigbluebutton/client/conf/config.xml $BBBCLIENTHOME/src/conf/config.xml

                cd $BBBCLIENTHOME

                echo "
# Done.  To build your local build of bbb-client:

        cd ${BBBCLIENTHOME}
        ant

# The nginx server now loads the BigBlueButton Flash client from
# ${BBBCLIENTHOME}.
"
        fi

        if [ $SETUPDEV == "apps" ]; then
	    	BBBAPPSHOME=~/dev/source/bigbluebutton/bigbluebutton-apps
            	if [ ! -d $BBBAPPSHOME ]; then
                        echo "# "
                        echo "*** ERROR: Cannot find ${BBBAPPSHOME} "
                        echo "*** ERROR: You haven't checked-out BigBlueButton source yet. Please run 'bbb-conf --checkout' first. "
                        echo "# "
                        exit 1
                fi

                echo "# Checking if ~/dev/repo/bbb-common-message-0.64.jar is present"
                if [ ! -f ~/dev/repo/bbb-common-message-0.64.jar ]; then
                        echo "# Copying bbb-common-message-0.64.jar into ${BBBAPPSHOME}"
                        if [ -f $RED5_DIR/webapps/bigbluebutton/WEB-INF/lib/bbb-common-message-0.64.jar ]; then
				if [ ! -d ~/dev/repo ]; then
                        		mkdir -p ~/dev/repo
                		fi
                                cp /usr/share/red5/webapps/bigbluebutton/WEB-INF/lib/bbb-common-message-0.64.jar ~/dev/repo/
                        else
                                echo "# $RED5_DIR/webapps/bigbluebutton/WEB-INF/lib/bbb-common-message-0.64.jar does NOT exist!"
                        fi
                fi

                #
                # We're going to make it easier to deploy by giving write access to others to
                # $RED5_DIR/webapps
                #
                sudo chmod o+w $RED5_DIR/webapps

                #
                # Let's remove the existing bbb-apps
                #
                if dpkg-query -s bbb-apps | grep "install ok installed" > /dev/null 2>&1; then
                        sudo apt-get purge --yes bbb-apps
                fi

                if [ ! -f ~/.bbb-apps-build.properties ]; then
                        echo "#
# Override the default properties for bbb-apps
#
red5.home = $RED5_DIR
" > ~/.bbb-apps-build.properties
                fi

                #
                # Setup the directories so we can point /etc/nginx/sites-available/bigbluebutton to this
                # local copy of the client
                #
                echo "
# Done.  To run your local build of bbb-apps:

    sudo /etc/init.d/red5 stop
    cd ${BBBAPPSHOME}
    gradle war deploy
    cd $RED5_DIR
    sudo -u red5 ./red5.sh

# To restore the packaged version of bbb-apps:

    rm -rf $RED5_DIR/webapps/bigbluebutton
    sudo apt-get install bigbluebutton
    sudo /etc/init.d/red5 start
"

        fi
fi

if [ $RESET_DEV ]; then
	check_root

        echo "Reseting /etc/nginx/sites-available/bigbluebutton to point to /var/www/bigbluebutton"
        sudo sed -i "s/\/home\/firstuser\/dev\/source\/bigbluebutton\/bigbluebutton-client;/\/var\/www\/bigbluebutton;/g" \
                        /etc/nginx/sites-available/bigbluebutton
        sudo /etc/init.d/nginx restart

fi

check_state() {

	echo $CHECK_VERBOSE
	print_header

	#
	# Check for potential problems
	#
#	echo "Checking running applications:"
	RUNNING_APPS=""
	NOT_RUNNING_APPS=""
	if ! ps aux | grep -v grep | grep "$ACTIVEMQ_DIR" > /dev/null; then
		print_header
		NOT_RUNNING_APPS="ActiveMQ"
	else
		RUNNING_APPS="ActiveMQ"
	fi	

	if ! ps aux | grep -v grep | grep 'org.red5.server.Bootstrap' > /dev/null; then
		print_header
		NOT_RUNNING_APPS="${NOT_RUNNING_APPS} Red5"
	else
		RUNNING_APPS="${RUNNING_APPS} Red5"
	fi	

	if ! ps aux | grep -v grep | grep '[/]usr/sbin/asterisk' > /dev/null; then
		print_header
		NOT_RUNNING_APPS="${NOT_RUNNING_APPS} Asterisk"
	else
		RUNNING_APPS="${RUNNING_APPS} Asterisk"
	fi	

	if ! ps aux | grep -v grep | grep '[/]usr/sbin/nginx' > /dev/null; then
		print_header
		NOT_RUNNING_APPS="${NOT_RUNNING_APPS} Nginx"
	else
		RUNNING_APPS="${RUNNING_APPS} Nginx"
	fi	

	if ! netstat -ant | grep '8080' > /dev/null; then
		print_header
		NOT_RUNNING_APPS="${NOT_RUNNING_APPS} ${TOMCAT} or grails"
	else 
		if ps aux |  ps -aef | grep -v grep | grep grails | grep run-app > /dev/null; then
			print_header
			RUNNING_APPS="${RUNNING_APPS} Grails"
        		echo "  ${TOMCAT}: 	noticed you are running grails run-app instead of tomcat"
		else
			RUNNING_APPS="${RUNNING_APPS} ${TOMCAT}"
		fi
	fi

	if ! netstat -ant | grep '8100' > /dev/null; then
                print_header
		NOT_RUNNING_APPS="${NOT_RUNNING_APPS} OpenOffice"
	else
		RUNNING_APPS="${RUNNING_APPS} OpenOffice"
        fi  
	#echo "  Running:     ${RUNNING_APPS}"
	if [ "$NOT_RUNNING_APPS" != "" ]; then
		echo "  Not Running: ${NOT_RUNNING_APPS}"
	fi
	echo
	if [ ! -L /etc/nginx/sites-enabled/bigbluebutton ]; then
        	echo "Nginx: bigbluebutton disabled"
        	echo "         - no symbolic link in /etc/nginx/sites-enabled/bigbluebutton to /etc/nginx/sites-available/bigbluebutton "
	#else
        #	echo "Nginx: bigbluebutton enabled"
        #	echo "         - there is symbolic link in /etc/nginx/sites-enabled/bigbluebutton to /etc/nginx/sites-available/bigbluebutton"
	fi	
	echo
	if grep -v \# /etc/nginx/sites-available/bigbluebutton | grep /home/firstuser/dev/source/bigbluebutton/bigbluebutton-client > /dev/null; then
        	echo "Nginx: serving client from /home/firstuser/dev/source/bigbluebutton/bigbluebutton-client"
        	echo "         instead of the usual /var/www/bigbluebutton"
#	else
#		echo "Nginx: serving client from /var/www/bigbluebutton"
	fi
	echo
#	echo "Checking what BigBlueButton applications are available in $RED5_DIR/webapps"
	AVAIL_RED5_APPS=""
	UNAVAIL_RED5_APPS=""
	DIRECTORIES="bigbluebutton deskshare sip video"
	for dir in $DIRECTORIES ; do
		if [ ! -d $RED5_DIR/webapps/$dir ]; then
			UNAVAIL_RED5_APPS="${UNAVAIL_RED5_APPS} $dir"
		else
			AVAIL_RED5_APPS="${AVAIL_RED5_APPS} $dir"
		fi
	done
	#echo "  Available:   ${AVAIL_RED5_APPS}"
	if [ "$UNAVAIL_RED5_APPS" != "" ]; then
		echo "Unavailable Red5 apps ($RED5_DIR/webapps/): ${UNAVAIL_RED5_APPS}"
	fi
	echo
	RED5_LOG_FILES="bigbluebutton red5 sip video"
	AVAIL_RED5_LOG=""
	UNAVAIL_RED5_LOG=""
#	echo "Checking Red5 log files in $RED5_DIR/log"
	for file in $RED5_LOG_FILES ; do
		if [ ! -f $RED5_DIR/log/$file.log ]; then
			UNAVAIL_RED5_LOG="${UNAVAIL_RED5_LOG} $file.log"
		else
			AVAIL_RED5_LOG="${AVAIL_RED5_LOG} $file.log"
		fi
	done
#	echo "  Available:   $AVAIL_RED5_LOG"
	if [ "$UNAVAIL_RED5_LOG" != "" ]; then
		echo "Unavailable Red5 logs ($RED5_DIR/log): $UNAVAIL_RED5_LOG"
	fi
	#
	# Make sure the salt for the API matches the server
	#
	SALT_PROPERTIES=$(cat /var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties | tr -d '\r' | sed -n '/securitySalt/{s/.*=//;p}')
	SALT_DEMO=$(cat /var/lib/${TOMCAT}/webapps/bigbluebutton/demo/bbb_api_conf.jsp | tr -d '\r' | sed -n '/salt =/{s/.* = "//;s/".*//g;p}')
	echo
#	echo "Checking security salt"
	if [ "$SALT_PROPERTIES" != "$SALT_DEMO" ]; then
        	echo "Salt mismatch: "
		echo "  /var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties=$SALT_PROPERTIES"
		echo "  /var/lib/${TOMCAT}/webapps/bigbluebutton/demo/bbb_api_conf.jsp=$SALT_DEMO"
#	else
#        	echo " salt match: salt in bigbluebutton.properties and bbb_api_conf.jsp matches"
	fi
	echo
	#
	# Look for properties with no values set
	#
	echo "Checking for BigBlueButton properties with no values"
	CONFIG_FILES="$RED5_DIR/webapps/bigbluebutton/WEB-INF/bigbluebutton.properties \
/var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties \
$RED5_DIR/webapps/sip/WEB-INF/bigbluebutton-sip.properties"

	for file in $CONFIG_FILES ; do
#	 	echo "  Checking properties file: $file"
	 	if [ ! -f $file ]; then	
		 	echo "     $file not found"
		else
			if grep -q "^[^=]*=[ ]*$" $file; then
        			echo "     No value found for $(grep '^[^=]*=[ ]*$' $file | sed 's/=//g') in $file"
			fi
		fi
	done

	echo 
#	echo "Checking if BigBlueButton applications has started from the log files"
	BBB_APPS="sip video bigbluebutton"

	for bbb_app in $BBB_APPS ; do
#		echo "  Checking $RED5_DIR/log/$bbb_app.log"
		if [ -a $RED5_DIR/log/$bbb_app.log ]; then
			if cat $RED5_DIR/log/$bbb_app.log | tail -n1 | grep -q "Starting up context"; then
				echo "    $bbb_app did not start properly"
#			else
#				echo "    $bbb_app started properly"
			fi
		else
			echo "    " $RED5_DIR/log/$bbb_app.log "not found"
		fi
	done
	
	echo
	# check if sip.log has warnings where the user is not registered
	if cat /usr/share/red5/log/sip.log | tail -n1 | grep -q "Call request for default but not registered"; then
		echo "The User is not registered in SIP. Audio might not be working correctly."
	fi
	echo
#	echo "Checking if voice app registered with Asterisk successfully"
        if cat /usr/share/red5/log/sip.log | grep -q "Failed to register with Sip Server"; then
                echo "  The voice application failed to register with the sip server. Try running bbb-conf --clean"
#	else
#                echo "  The voice application registered with the sip server."
        fi

	#
	# Check that tomcat6 started properly and has created log files
	#
	if [ -z "$(ls -A $TOMCAT6_LOGS)" ]; then
        	echo "                     empty directory: $TOMCAT6_LOGS contains no logs"
	fi

	#
	# Check that bigbluebutton in red5 has started propertly 
	# 
	BIGBLUEBUTTON_RED5_LOG=$(stat -c%s $RED5_DIR/log/bigbluebutton.log)
	if [ $BIGBLUEBUTTON_RED5_LOG -lt 100 ]; then
        	echo "       bigbluebutton failed to start: $RED5_DIR/log/bigbluebutton.log (red5)"
	fi

	HOST_IP=$(ifconfig | grep -v '127.0.0.1' | grep -m 1 'inet addr:' | cut -d: -f2 | awk '{ print $1}')
 	NGINX_IP=$(cat /etc/nginx/sites-available/bigbluebutton | sed -n '/server_name/{s/.*name[ ]*//;s/;//;p}')

	if [ "$HOST_IP" != "$NGINX_IP" ]; then
			echo "Host IP does not match BigBlueButton: ${HOST_IP} != ${NGINX_IP}"
	fi

	 VARFolder=$(cat /var/lib/tomcat6/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties | grep swfToolsDir | cut -d= -f2)
        if [ ! -x $VARFolder/pdf2swf ] && [ ! -x $VARFolder/jpeg2swf ] && [ ! -x $VARFolder/png2swf ]; then
                echo "pdf2swf, jpeg2swf and png2swf are not installed in $VARFolder"
        fi

        VARFolder=$(cat /var/lib/tomcat6/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties | grep imageMagickDir | cut -d= -f2)
        if [ ! -x $VARFolder/convert ]; then
                echo "imageMagick's convert is not installed in $VARFolder"
        fi

        VARFolder=$(cat /var/lib/tomcat6/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties | grep ghostScriptExec | cut -d= -f2)
        if [ ! -x $VARFolder ]; then
                echo "Ghostscript is not installd in $VARFolder"
        fi

        if [ -f /usr/share/red5/log/deskshare.log ]; then
		if [ `grep -i '<!--[ ]*module name="DeskShareModule"' /var/www/bigbluebutton/client/conf/config.xml` ]; then
	                echo "The DeskShare Module is not uncommented.";
		fi
	else
		#check for DeskShare.log
		if [ -a $RED5_DIR/log/deskshare.log ]; then
			if cat $RED5_DIR/log/deskshare.log | tail -n1 | grep -q "Starting up context"; then
				echo "BigBlueButton did not start up corerctly"
			fi
		fi
        fi
	
	echo
	exit 0
}


#
# Check current setup
#
if [ $CHECK ]; then

        echo "Current Configuration:"
	echo "Kernel version: " `uname -r`
	if [ `uname -m` == "x86_64" ]; then
		echo "The architecture is 64bit."
	elif [ `uname -m` == "x86" ]; then
		echo "The architecture is 32bit."
	fi

        echo
        echo "/var/www/bigbluebutton/client/conf/config.xml:"
        IP=$(cat /var/www/bigbluebutton/client/conf/config.xml | sed -n '/porttest /{s/.*host="//;s/".*//;p}')
        echo "  Port test (tunnel): $IP"

        IP=$(cat /var/www/bigbluebutton/client/conf/config.xml | sed -n '/uri.*video/{s/.*rtmp:\/\///;s/\/.*//;p}')
        echo "  Red5: $IP"

#        HOST=$(cat /var/www/bigbluebutton/client/conf/config.xml | sed -n '/recordingHost/{s/.*recordingHost="http:\/\///;s/"//;p}')
#        echo "          host for bbb-web interface: $HOST"

        echo
        echo "/etc/nginx/sites-available/bigbluebutton"
        IP=$(cat /etc/nginx/sites-available/bigbluebutton | sed -n '/server_name/{s/.*name[ ]*//;s/;//;p}')
        echo "  server name: $IP"

        PORT=$(cat /etc/nginx/sites-available/bigbluebutton | sed -n '/listen/{s/.*listen[ ]*//;s/;//;p}')
        echo "  port: $PORT"

	BBB_CLIENT_DOC_ROOT=$(cat /etc/nginx/sites-available/bigbluebutton | grep \/client -A 1 | head -n 2 | grep root | sed -n '{s/[ ]*root[ ]*//;s/;//;p}')
        echo "  bbb client dir: $BBB_CLIENT_DOC_ROOT"

        HOST=$(cat /var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties | sed -n '/^bigbluebutton.web.serverURL/{s/.*\///;p}')
        echo
        echo "/var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties (bbb-web)"
        echo "                                host: $HOST"

	if [ -f /var/lib/${TOMCAT}/webapps/bigbluebutton/demo/bbb_api_conf.jsp ]; then
        	HOST=$(cat /var/lib/${TOMCAT}/webapps/bigbluebutton/demo/bbb_api_conf.jsp  | sed -n '/String BigBlueButtonURL/{s/.*http:\/\///;s/\/.*//;p}' | tr -d '\015')
        	echo
        	echo "/var/lib/${TOMCAT}/webapps/bigbluebutton/demo/bbb_api_conf.jsp (API demos)"
        	echo "                                host: $HOST"
	fi

        if  ps aux | grep '[/]usr/sbin/asterisk' > /dev/null; then
        	CONFERENCING_MODULE=$(cat $RED5_DIR/webapps/bigbluebutton/WEB-INF/bigbluebutton.properties | sed -n '/asterisk.application/{s/.*=[ ]*//g;p}')
        	echo
        	echo "/etc/asterisk/bbb_extensions.conf (asterisk)"
        	echo "                   conference module: $CONFERENCING_MODULE"
	fi

	check_state

	exit 0
fi

#
# Check current setup
#
if [ $ZIP ]; then
	need_root

	LOG_FILE="$(date +'%Y%m%d')-$(date +%H)"
	#
	# Check log files
	#
	rm -f /tmp/$LOG_FILE.tar
	rm -f /tmp/$LOG_FILE.tar.gz
	rm -f /tmp/a

	touch /tmp/empty
	tar cf /tmp/$LOG_FILE.tar /tmp/empty			> /dev/null 2>&1
	tar rf /tmp/$LOG_FILE.tar $RED5_DIR/log			> /dev/null 2>&1
	tar rf /tmp/$LOG_FILE.tar $TOMCAT6_LOGS			> /dev/null 2>&1
	tar rf /tmp/$LOG_FILE.tar /var/log/bigbluebutton/*	> /dev/null 2>&1
	tar rf /tmp/$LOG_FILE.tar /var/log/nginx/error.log	> /dev/null 2>&1
	tar rf /tmp/$LOG_FILE.tar /var/log/syslog		> /dev/null 2>&1

	tar tf /tmp/$LOG_FILE.tar
	gzip /tmp/$LOG_FILE.tar
	mv /tmp/$LOG_FILE.tar.gz /root/$LOG_FILE.tar.gz
	echo
	echo "  Created: /root/$LOG_FILE.tar.gz"
	echo
fi

#
# Check current setup
#
if [ $DEBUG ]; then
	need_root
	#
	# Check log files
	#

	rm -rf /tmp/t
	grep ERROR $RED5_DIR/log/* > /tmp/t 
	if [ -s /tmp/t ]; then
		echo "   -- ERRORS found in $RED5_DIR/log/* -- "
		cat /tmp/t
		echo
	fi


	rm -rf /tmp/t
	grep Exception $RED5_DIR/log/* > /tmp/t 
	if [ -s /tmp/t ]; then
		echo "   -- Exceptions found in $RED5_DIR/log/* -- "
		cat /tmp/t
		echo
	fi

	rm -rf /tmp/t
	find /var/log/asterisk -exec grep -H -i "Unable to register" '{}' \; > /tmp/t
	if [ -s /tmp/t ]; then
		echo "   -- Registration errors found in /var/log/asterisk/ -- "
		echo "Found $(cat /tmp/t | wc -l) errors in /var/log/asterisk/* containing string \"Unable to register\""
		echo
	fi

	rm -rf /tmp/t
	sudo grep Exception $TOMCAT6_LOGS/* | grep -v CacheExceptionHandlerFactory > /tmp/t 
	if [ -s /tmp/t ]; then
		echo "   -- Exceptions found in $TOMCAT6_LOGS/ -- "
		cat /tmp/t
		echo
	fi

        rm -rf /tmp/t
        if [ -s /var/log/nginx/error.log ]; then
                cat /var/log/nginx/error.log | grep -v "/fcs/ident2" > /tmp/t
                if [ -s /tmp/t ]; then
                        echo "   -- Errors found in /var/log/nginx/error.log -- "
                        cat /tmp/t
                        echo
                fi
        fi

	rm -rf /tmp/t
	if [ ! is_gentoo ]; then sudo grep -v "No Voicetronix cards detected" /var/log/asterisk/* | grep ERROR > /tmp/t 
	  if [ -s /tmp/t ]; then
		echo "   -- Errors found in /var/log/asterisk/* -- "
		cat /tmp/t
		echo
	  fi
	fi

	rm -rf /tmp/t
	if [ ! is_gentoo ]; then sudo grep -i exception /var/log/syslog > /tmp/t 
	  if [ -s /tmp/t ]; then
		echo "   -- Errors found in /var/log/syslog -- "
		cat /tmp/t
		echo
	  fi
	fi

	rm -rf /tmp/t
	if [ -d /var/log/bigbluebutton ]; then
		if [ ! is_gentoo ]; then 
		  sudo grep ERROR /var/log/bigbluebutton/* > /tmp/t 
		  if [ -s /tmp/t ]; then
			echo "   -- Errors found in /var/log/bigbluebutton -- "
			cat /tmp/t
			echo
		  fi
		fi
	fi

	rm -rf /tmp/t
	if [ -d /var/log/bigbluebutton ]; then
		if [ ! is_gentoo ]; then
		  sudo grep -i exception /var/log/bigbluebutton/* > /tmp/t 
		  if [ -s /tmp/t ]; then
			echo "   -- Exceptions found in /var/log/bigbluebutton -- "
			cat /tmp/t
			echo
		  fi
		fi
	fi

	exit 0
fi



# if asked to print the version that's all we do
if [ -n "$HOST" ]; then

	#
	# Just use the IP for port test in /var/www/bigbluebutton/client/conf/config.xml
	#
	echo "Assigning $HOST for testing for firewall in /var/www/bigbluebutton/client/conf/config.xml"
	sudo sed -i "s/porttest host=\(\"[^\"]*\"\)/porttest host=\"$HOST\"/g" /var/www/bigbluebutton/client/conf/config.xml
	echo "Assigning $HOST for rtmp:// in /var/www/bigbluebutton/client/conf/config.xml"
	sudo sed -i "s/rtmp:\/\/\([^\"\/]*\)\([\"\/]\)/rtmp:\/\/$HOST\2/g" /var/www/bigbluebutton/client/conf/config.xml

	echo "Assigning $HOST for servername in /etc/nginx/sites-available/bigbluebutton"
	sudo sed -i "s/server_name  .*/server_name  $HOST;/g" /etc/nginx/sites-available/bigbluebutton

	#
	# Use port for remaining substitutions
	#
	if [ $PORT ]; then
		HOST="$HOST:$PORT"
	fi

	#
	# Update configuration for BigBlueButton client
	#
	echo "Assigning $HOST for http:// in /var/www/bigbluebutton/client/conf/config.xml"
	sudo sed -i "s/http:\/\/\([^\"\/]*\)\([\"\/]\)/http:\/\/$HOST\2/g" /var/www/bigbluebutton/client/conf/config.xml


	#
	# Update configuration for BigBlueButton web app
	#
	echo "Assigning $HOST for web application URL in /var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties"

	sudo sed -i "s/bigbluebutton.web.serverURL=http:\/\/.*/bigbluebutton.web.serverURL=http:\/\/$HOST/g" \
				/var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties

	# cat /var/lib/${TOMCAT}/webapps/bigbluebutton/WEB-INF/classes/bigbluebutton.properties

	#
	# Update nginx
	#

	if [ $PORT ]; then
		echo "Assigning $PORT for listen in /etc/nginx/sites-available/bigbluebutton"
		sudo sed -i "s/listen  .*/listen  $PORT;/g" /etc/nginx/sites-available/bigbluebutton
	fi

	if ! grep -q server_names_hash_bucket_size /etc/nginx/nginx.conf; then
		sudo sed -i "s/gzip  on;/gzip  on;\n    server_names_hash_bucket_size  64;/g" /etc/nginx/nginx.conf
	fi

	#
	# Update api demos
	#

        if [ -f /var/lib/${TOMCAT}/webapps/bigbluebutton/demo/bbb_api_conf.jsp ]; then
		echo "Assigning $HOST for api demos in /var/lib/${TOMCAT}/webapps/bigbluebutton/demo/bbb_api_conf.jsp"
		sudo sed -i "s/BigBlueButtonURL = \"http:\/\/\([^\"\/]*\)\([\"\/]\)/BigBlueButtonURL = \"http:\/\/$HOST\2/g" \
				/var/lib/${TOMCAT}/webapps/bigbluebutton/demo/bbb_api_conf.jsp
        fi


	echo "Restarting ${TOMCAT} and nginx ..."
	sudo /etc/init.d/${TOMCAT} restart  > /tmp/result 2>&1;cat /tmp/result;rm /tmp/result
	sudo /etc/init.d/nginx restart

	exit 0
fi

if [ $CONFERENCE ]; then
	need_root

	if [ ! -f $RED5_DIR/webapps/bigbluebutton/WEB-INF/bbb-voice-app.xml ]; then
		echo "Error: Unable to find $RED5_DIR/webapps/bigbluebutton/WEB-INF/bbb-voice-app.xml"
		exit 1
	fi

	if [ ! -f /etc/asterisk/bbb_extensions.conf ]; then
		echo "Error: Unable to find /etc/asterisk/bbb_extensions.conf"
		exit 1
	fi

	if [ "$CONFERENCE" = "meetme" ]; then
		CONFERENCE=meetme
	else
		if [ "$CONFERENCE" = "konference" ]; then
			CONFERENCE=app_konference
		else
			echo "Error: Valid options for --conference are: meetme, konference"
			exit 1
		fi
	fi

        if [ $CONFERENCE = "meetme" ]; then
		#
		# update $RED5_DIR/webapps/bigbluebutton/WEB-INF/bigbluebutton.properties
		#
	        sudo sed -i "s/asterisk.application[ ]*=.*/asterisk.application=meetme/g" \
			$RED5_DIR/webapps/bigbluebutton/WEB-INF/bigbluebutton.properties

		#
		# update /etc/asterisk/bbb_extensions.conf
		sudo sed -i "s/^exten => _XXXX.,n,Konference(\${EXTEN},H)/; exten => _XXXX.,n,Konference(\${EXTEN},H)/g" \
			/etc/asterisk/bbb_extensions.conf

		sudo sed -i "s/;[ ]*exten => _XXXX.,n,MeetMe(\${EXTEN},cdMsT)/exten => _XXXX.,n,MeetMe(\${EXTEN},cdMsT)/g" \
			/etc/asterisk/bbb_extensions.conf

		#
		# update /etc/asterisk/bbb_extensions.conf
		sudo sed -i "s/; exten => _XXXX.,n,MeetMe(\${CONFERENCE_FOUND},cdMsT)/exten => _XXXX.,n,MeetMe(\${CONFERENCE_FOUND},cdMsT)/g" \
			/etc/asterisk/bbb_extensions.conf

		sudo sed -i "s/^exten => _XXXX.,n,Konference(\${CONFERENCE_FOUND},H)/; exten => _XXXX.,n,Konference(\${CONFERENCE_FOUND},H)/g" \
			/etc/asterisk/bbb_extensions.conf
	fi
 
        if [ $CONFERENCE = "app_konference" ]; then
		#
		# update $RED5_DIR/webapps/bigbluebutton/WEB-INF/bigbluebutton.properties
		#
	        sudo sed -i "s/asterisk.application[ ]*=.*/asterisk.application=konference/g" \
			$RED5_DIR/webapps/bigbluebutton/WEB-INF/bigbluebutton.properties

		#
		# update /etc/asterisk/bbb_extensions.conf
		sudo sed -i "s/;[ ]*exten => _XXXX.,n,Konference(\${EXTEN},H)/exten => _XXXX.,n,Konference(\${EXTEN},H)/g" \
			/etc/asterisk/bbb_extensions.conf

		sudo sed -i "s/^exten => _XXXX.,n,MeetMe(\${EXTEN},cdMsT)/; exten => _XXXX.,n,MeetMe(\${EXTEN},cdMsT)/g" \
			/etc/asterisk/bbb_extensions.conf


		sudo sed -i "s/^exten => _XXXX.,n,MeetMe(\${CONFERENCE_FOUND},cdMsT)/; exten => _XXXX.,n,MeetMe(\${CONFERENCE_FOUND},cdMsT)/g" \
			/etc/asterisk/bbb_extensions.conf

		sudo sed -i "s/; exten => _XXXX.,n,Konference(\${CONFERENCE_FOUND},H)/exten => _XXXX.,n,Konference(\${CONFERENCE_FOUND},H)/g" \
			/etc/asterisk/bbb_extensions.conf
	fi

	echo "Switching to $CONFERENCE ... "
	sudo /etc/init.d/asterisk restart
	sudo /etc/init.d/red5 restart
fi

if [ $RESTART ]; then
	need_root

	echo "Restarting BigBlueButton ..."

	stop_bigbluebutton

	echo

	display_bigbluebutton_status

	echo

	start_bigbluebutton
fi

if [ $CLEAN ]; then
	need_root
	
	echo "Doing a clean restart of BigBlueButton ..."

	stop_bigbluebutton

	#
	# Clean log files
	#

	echo 
	echo "Cleaning Log Files ..."
	rm -f /var/log/asterisk/event* 
	rm -f /var/log/asterisk/messages* 
	rm -f /var/log/asterisk/queue* 
	
	if [ $RED5_DIR ]; then
		rm -rf $RED5_DIR/log/*
	fi

	if [ $TOMCAT6_LOGS ]; then
		rm -rf $TOMCAT6_LOGS/*
	fi

	rm -rf /var/log/nginx/*
	mv /var/log/syslog /tmp/syslog.$$
	echo "" > /var/log/syslog

	display_bigbluebutton_status

	echo
	start_bigbluebutton
fi

if [ $NETWORK ]; then
	netstat -ant | egrep ":1935|:9123|:80\ " | egrep -v ":::|0.0.0.0" > /tmp/t_net
	REMOTE=$(cat /tmp/t_net | cut -c 45-68 | cut -d ":" -f1 | sort | uniq)

	if [ "$REMOTE" != "" ]; then
        	echo -e "netstat\t\t\t80\t1935\t9123"
        	for IP in $REMOTE ; do
			PORT_1935=$(cat /tmp/t_net | grep :1935 | cut -c 45-68 | cut -d ":" -f1 | grep $IP | wc -l)
			PORT_9123=$(cat /tmp/t_net | grep :9123 | cut -c 45-68 | cut -d ":" -f1 | grep $IP | wc -l )
			PORT_80=$(cat /tmp/t_net | grep :80 | cut -c 45-68 | cut -d ":" -f1 | grep $IP | wc -l )
			#if cat /tmp/t_net | grep 9123 | cut -c 45-68 | cut -d ":" -f1 | grep $IP > /dev/null; then
			#	DESKSHARE="   XXX"
			#fi

                	echo -e "$IP\t\t$PORT_80\t$PORT_1935\t$PORT_9123"
        	done
	fi
fi

if [ $WATCH ]; then
	need_root

        watch -n 2 "top -n 1 -b | head -n 5; echo; asterisk -r -x \"core show channels\"; echo; bbb-conf --network; bbb-conf --debug"
fi