24online cyberoam bash dd-wrt.sh http://karve.in/wp-content/uploads/2012/11/scriptRoam.txt

24online cyberoam bash dd-wrt.sh

#!/bin/bash
#ishan dot karve at gmail dot com
#Script to emulate HTTP Client login method for 24Online 
#Oct 2012, Jamnagar, Gujarat
#ver 0.2 alpha
#Per User Client
#Change variables below to reflect ur setup
  #Change Log
	# Better program loop
	# Coloured debug
	# Added byte counter
##############################################################################
#define variables
tput clear
srv_ip="195.100.100.1"
username="ishankarve"
password="ishankarve"

connected=0
lastcheck_ts=0
first_time=1
interface="eth0"
#check whether curl is installed or not
#
which curl &> /dev/null
if [ $? -ne 0 ]  
then
tput setaf 1 && tput bold
echo "This script heavily depends on curl for proper execution.Please install curl and try again"
exit
tput sgr0
fi

logout_session()
# logout function
{
	get_tstamp
        tput setaf 6 
	echo "$tstamp: Disconnecting now.. pls wait"
        tput sgr0
	#disconnect client
	url="http://$srv_ip/24online/servlet/CyberoamHTTPClient"
  	post_data="mode=193&isAccessDenied=null&url=null&message=&checkClose=1&sessionTimeout=-1.0&guestmsgreq=false&logintype=2&username=$username&username1=$username&password=****&logout=Logout&saveinfo="

	curl -b /tmp/24onlinecookie -c /tmp/24onlinecookie --data $post_data $url   > /dev/null 2>&1

	url="http://$srv_ip/24online/webpages/clientlogin.jsp?loginstatus=null&logoutstatus=true&liverequesttime=null&livemessage=null&url=null&isAccessDenied=false&fromlogout=null&sessionTimeout=-1.0"
	curl -b /tmp/24onlinecookie -c /tmp/24onlinecookie $url   > /dev/null 2>&1
	get_tstamp
	#wait for 5 seconds
	tput setaf 6
	echo "$tstamp: Please wait for 5 seconds for connection to stabilise"
	tput sgr0
	sleep 5
	#test net connection
	chk_connection
	rm -f /tmp/24onlinecookie	
	end_rxbyte_count=$(printrxbytes);
	end_txbyte_count=$(printtxbytes);
	rx_count=$((end_rxbyte_count - start_rxbyte_count))
	tx_count=$((end_txbyte_count - start_txbyte_count))
	echo "Session Stats"
	echo "Rx=" $rx_count "Bytes|"$((rx_count/1024)) "KB|"$((rx_count/1048756)) "MB|"$(($rx_count/1073741824)) "GB"
	echo "Tx=" $rx_count "Bytes|"$((tx_count/1024)) "KB|"$((tx_count/1048756)) "MB|"$(($tx_count/1073741824)) "GB"
	return $?
}


init_login()
{
get_tstamp
#attempt connection to cyberoam server to get the session cookie. save cookie locally
curl -c /tmp/24onlinecookie http://$srv_ip/24online/webpages/client.jsp  > /dev/null 2>&1
session_id=$(sed -n -e 's/.*JSESSIONID\(.*\).*/\1/p' /tmp/24onlinecookie | sed -e 's/^[ \t]*//')
tput setaf 6
echo "$tstamp: Session id is $session_id"
tput sgr0
#attempt reverse session registration
url="http://$srv_ip/24online/webpages/clientlogin.jsp?loginstatus=null&logoutstatus=null&message=null&liverequesttime=null&livemessage=null&url=null&isAccessDenied=null&fromlogout=null&sessionTimeout=null"
referrer="http://$srv_ip/24online/webpages/client.jsp"
curl -b /tmp/24onlinecookie $url   > /dev/null 2>&1

#attempt initial login
url="http://$srv_ip/24online/servlet/CyberoamHTTPClient"
post_data="mode=191&isAccessDenied=null&url=null&message=&checkClose=1&sessionTimeout=0.0&guestmsgreq=false&logintype=2&username=$username&password=$password&login=Login&saveinfo="
curl -b /tmp/24onlinecookie -c /tmp/24onlinecookie --data $post_data $url   > /dev/null 2>&1

url="http://$srv_ip/24online/webpages/clientlogin.jsp?loginstatus=true&logoutstatus=null&liverequesttime=180&livemessage=null&url=null&isAccessDenied=null&fromlogout=null&sessionTimeout=-1"
curl -b /tmp/24onlinecookie -c /tmp/24onlinecookie $url   > /dev/null 2>&1

url2="http://$srv_ip/24online/webpages/liverequest.jsp?isfirsttime=true"
curl --referrer $url -b /tmp/24onlinecookie -c /tmp/24onlinecookie $url2   > /dev/null 2>&1
get_tstamp
#wait for 5 seconds
tput setaf 6
echo "$tstamp: Please wait for 5 seconds for connection to stabilise"
tput sgr0
sleep 5
chk_connection
if [ $connected -eq 1 ]
then first_time=0
keep_alive_check_ts=$lastcheck_ts # to prevent premature keepalive packet being sent
fi

}


keep_alive()
{
get_tstamp

url="http://$srv_ip/24online/webpages/liverequest.jsp?isfirsttime=false"
curl -b /tmp/24onlinecookie -c /tmp/24onlinecookie $url   > /dev/null 2>&1
url="http://$srv_ip/24online/servlet/CyberoamHTTPClient?mode=192&username=$username"
curl -b /tmp/24onlinecookie -c /tmp/24onlinecookie $url   > /dev/null 2>&1
url="http://$srv_ip/24online/webpages/liverequest.jsp"
curl -b /tmp/24onlinecookie -c /tmp/24onlinecookie $url   > /dev/null 2>&1
chk_connection
keep_alive_check_ts=$lastcheck_ts
}


chk_connection()
{
get_tstamp
#test net connection
if ping -c1 host.com > /dev/null 
then
 connected=1
 if [ $first_time -eq 1 ] #display prompt only initially
 then 
  tput setaf 2 && tput bold
  echo "$tstamp: Yipee You are connected to Internet" 
  tput sgr0 
 fi

else
 tput setaf 1 && tput bold 
 echo "$tstamp: You are not connected to Internet"
 connected=0
 tput sgr0
fi
lastcheck_ts=`date "+%s"`  # set to current unix timestamp
}

get_tstamp()
{
tstamp=`date "+%Y-%m-%d %H:%M:%S"`
}

control_c()
# run if user hits control-c to exit the code
{
  get_tstamp
  tput setaf 3 && tput bold
  echo -en "\n$tstamp: *** Ouch! Logging out ***\n"
  tput sgr0
  logout_session
  exit $?
}
 

#byte counter
#source http://meinit.nl/shell-script-measure-network-throughput-linux-machines
printrxbytes(){
/sbin/ifconfig "$interface" | grep "RX bytes" | cut -d: -f2 | awk '{ print $1 }'
}

printtxbytes(){
/sbin/ifconfig "$interface" | grep "TX bytes" | cut -d: -f3 | awk '{ print $1 }'
}
#--------------------------------------------
start_rxbyte_count=$(printrxbytes);
start_txbyte_count=$(printtxbytes);
#--------------------------------------------



# trap keyboard control-c interrup for graceful exit
trap control_c SIGINT

#main loop
#check if connection is alive every 5s
#if yes do nothing
#if not connected then relogin
#if connection is alive for more than 3m then keep alive connection

while true 
do 
	current_ts=`date "+%s"`
	#check if connection is alive every 5s
	if [ $((current_ts - lastcheck_ts)) -ge 5 ]
	then chk_connection #lastcheck_ts is automatically set in this loop
	fi
	
	#if session is terminated by server then logout gracefully
	if [ $connected -eq 0 -a $first_time -eq 0 ]	
	then
	tput setaf 4 
	echo "$tstamp: It appears that the server terminated your session"	
	tput sgr0 		
	logout_session
	first_time=1
	fi
	

	#if not logged in initially then login
	if [ $connected -eq 0 -a $first_time -eq 1 ]
	then init_login
	fi
	
	#if connection is alive for more than 3m then keep alive connection
	if [ $((current_ts - keep_alive_check_ts)) -ge 180 ]
	then 
	tput setaf 6 
	echo -n "$tstamp: Refreshing Connection State"	
	keep_alive
        	if [ $connected -eq 1 ]
		then 
		  tput setaf 2 && tput bold
		  echo "                [OK]" 
		  tput sgr0 
		 fi
	
	fi
	sleep 0.5 # sleep for half a second to prevent loop	
done