#!/bin/bash
######################################################################
######                      COMMANDWORM                   ###############
#####################################################################
########## This script facilitates various services that has #########
#####              to be performed by the administrator         #####
#####################################################################
#  Designed and Created by FAHAD SAEED on 13 JULY 2005

echo WELCOME TO COMMANDWORM !

# tests the last node that was able to ssh successfully and eliminated that
# ip for further testing

cat /home/admin/ip1>pool
cat /home/admin/ip2>>pool
cat /home/admin/ip3>>pool
cat /home/admin/ip4>>pool

#logged ip is the script in folder script1 that gets the ip of the last successful ssh
bash /home/script1/loggedip
# the ip of the machine is stored in the file /home/script1/ip

read ipvar</home/script1/ip
# ip of the machine that started the worm on this node
echo $ipvar

comm -23 /home/admin/pool /home/script1/ip>/home/admin/pool1

# now pool contains the ips that are to be analysed 

sed -n '1p' /home/admin/pool1>tar1
sed -n '2p' /home/admin/pool1>tar2
sed -n '3p' /home/admin/pool1>tar3
sed -n '4p' /home/admin/pool1>tar4

# If tar4 is empty then it means that adminworm was generated by another
#node ELSE (if tar4 is not empty than) this is the first node that the admin
# is using 
read target1<tar1
read target2<tar2
read target3<tar3
read target4<tar4

## Removing the used files
rm -f /home/admin/pool
rm -f /home/admin/pool1
rm -f /home/admin/tar1
rm -f /home/admin/tar2
rm -f /home/admin/tar3
rm -f /home/admin/tar4



# the ip of this of this terminal
read terminalip</home/auto/terminalip

###########################################


echo HOW MAY I SERVE
###################################################################
## CODE FOR FILE TRANSFER COMES HERE
echo
echo The contents of /home/admin are:
echo *******************************************************
echo
echo The command will be executed on all the "Active nodes" 
echo  
echo Please enter the command u want to execute:


read command <nameofcommand  
if test "$command" = ""
        then
	read command	
	echo $command>nameofcommand
	echo $command>lastcommand
else
        
       echo $command

fi




echo PLEASE WAIT ...
echo It may take some time to execute the command !!
echo

# each node is checked weather the command is executed on the node or not
#If NOT then the command is executed on that node and the same script is 
#executed on that node

#########################################################################################
##################      command execution on first neighbour    ##########################


ssh admin@$target1 "scp /home/admin/lastcommand admin@$terminalip:/home/admin/rc"

# Now the nameofcommand is in the /home/admin/rc,the last command executed on the remote
#terminal


read match < /home/admin/rc

## If rc is equal to the $command ,it means that the command has executed on the node
##else execute the command and initiate commandworm on that node

if test "$match" = "$command"
        then

	echo The command has executed on $target1

else
	
        echo executing $command on $target1
        ssh admin@$target1 "$command"
        scp /home/admin/nameofcommand admin@$target1:/home/admin
        scp /home/admin/lastcommand admin@$target1:/home/admin
	echo execution of $command on $target1 complete
        echo initializing commandworm on $target1
        ssh admin@$target1 "bash /home/admin/commandworm"
        

fi




#########################################################################################
##################      execution of command on second neighbour    ##########################

ssh admin@$target2 "scp /home/admin/lastcommand admin@$terminalip:/home/admin/rc"
# Now the nameofcommand is in the /home/admin/rc,the last command executed on the remote
#terminal



read match < /home/admin/rc

## If rc is equal to the $command ,it means that the command has executed on the node
##else execute the command and initiate commandworm on that node

if test "$match" = "$command"
        then

        echo The command has executed on $target2

else

        echo executing $command on $target2
        ssh admin@$target2 "$command"
        scp /home/admin/nameofcommand admin@$target2:/home/admin
        scp /home/admin/lastcommand admin@$target2:/home/admin
	echo execution of $command on $target2 complete
        echo initializing commandworm on $target2
        ssh admin@$target2 "bash /home/admin/commandworm"


fi



#########################################################################################
##################      execution of command on third neighbour    ######################

ssh admin@$target3 "scp /home/admin/lastcommand admin@$terminalip:/home/admin/rc"
# Now the nameofcommand is in the /home/admin/rc,the last command executed on the remote
#terminal


read match < /home/admin/rc

## If rc is equal to the $command ,it means that the command has executed on the node
##else execute the command and initiate commandworm on that node

if test "$match" = "$command"
        then

        echo The command has executed on $target3

else

        echo executing $command on $target3
        ssh admin@$target3 "$command"
        scp /home/admin/nameofcommand admin@$target3:/home/admin
        scp /home/admin/lastcommand admin@$target3:/home/admin
	echo execution of $command on $target3 complete
        echo initializing commandworm on $target3
        ssh admin@$target3 "bash /home/admin/commandworm"


fi



#########################################################################################
##################      execution of command on fourth neighbour    ##########################


if test "$target4" = ""
# target 4 equal to null means that,target4 was the host of adminworm1.
#this means that target4 has the required file and there even no need to 
#check the file in the remote machine        
	then

        echo
	rm -f /home/admin/nameofcommand
	exit 0
else

	ssh admin@$target4 "scp /home/admin/lastcommand admin@$terminalip:/home/admin/rc"
        # Now the nameofcommand is in the /home/admin/rc,the last command executed on the remote
        #terminal


	read match < /home/admin/rc

## If rc is equal to the $command ,it means that the command has executed on the node
##else execute the command and initiate commandworm on that node

	if test "$match" = "$command"
        	then

        	echo The command has executed on $target4

	else

        	echo executing $command on $target4
        	ssh admin@$target4 "$command"
        	scp /home/admin/nameofcommand admin@$target4:/home/admin
        	scp /home/admin/lastcommand admin@$target4:/home/admin
		echo execution of $command on $target4 complete
        	echo initializing commandworm on $target4
        	ssh admin@$target4 "bash /home/admin/commandworm"
                

	fi

	rm -f /home/admin/nameofcommand

	exit 0

fi

rm -f /home/admin/nameofcommand
exit 0