#!/bin/bash
trap "" 2 20
#Variaveis
servidorvpndefault=vpn.simplesip.com.br

#Funcao menu de opcoes para configuracao
menu() { 
while [ "TRUE" ]
do
echo "Escolha uma opcao" 
echo "1 - Verificar status da interface VPN novamente";
echo "2 - Tentar novamente a conexao VPN"; 
echo "3 - Verificar Log";
echo "4 - Disponibilizar Log para download";
echo "5 - Configurar VPN";
echo "6 - Lista tabela de roteamento";
echo "7 - Sair"
echo ""; 
echo "Em caso de duvida, entre em contato com o Suporte Tecnico";
echo "Contatos: (65) 3616-8280 / suporte@simplesip.com.br";
echo "";
echo -n ":"; 
read escolha; 

	case $escolha in
		1)
			clear
			VPN=$(! [ -z "$(ifconfig | grep 'ppp')" ] &&  ifconfig  ppp0 | grep "inet" | awk {'print $2'})
			if [ -z "$VPN" ] ; then
				echo ""
				echo ""
				echo "A Interface VPN nao esta disponivel"
                echo ""
                echo ""

			
			else
			
				echo ""
				echo ""
				echo "Interface VPN $VPN"
                echo ""
                echo ""
			fi
	

		;;	
        	2)
            clear
			pppd call simplesip
			echo "Discando..."
			for i in {10..1};do sleep 1 && echo -n "$i ";done
			VPN=$(! [ -z "$(ifconfig | grep 'ppp')" ] &&  ifconfig  ppp0 | grep "inet" | awk {'print $2'})

                        if [ -z "$VPN" ] ; then
                                echo ""
                                echo ""
                                echo "A Interface VPN nao esta disponivel"
                                echo ""
                                echo ""


                        else

                                echo ""
                                echo ""
                                echo "Interface VPN $VPN"
                                echo ""
                        fi

			
                ;;

                3)
			clear
			echo ""
			echo ""
			datalog=$(date +%b" "%d) 
			egrep "^$datalog .*pp[pt][dp]" /var/log/messages
			echo ""
			echo ""
			echo ""

			
                ;;

                4)
                        clear
			datalog=$(date +%b" "%d)
			data=$(date +%F-%H-%M-%S)
                        egrep "^$datalog .*pp[pt][dp]" /var/log/messages > /hdaux/downloads/log-pppd-$data.log
                        interfaces=$(ifconfig | grep -v "127.0.0.1" | grep "inet" | awk {'print $2'})
                        for i in $interfaces
                        do
				echo ""
				echo ""
                                echo "Acesse: http://$i/downloads/log-pppd-$data.log"
                        done
                        echo ""
                        echo ""
                        echo ""


                ;;

                5)
			clear
			while [ "TRUE" ]
			do
				echo -n "Informe o endereco ip do servidor VPN (Default: vpn.simplesip.com.br):"
				read servidorvpn
                        	echo -n "Informe o nome de usuario da VPN:"
                        	read usuariovpn
                        	echo -n "Informe a senha de usuario da VPN:"
                        	read senhavpn
				echo ""
				if [ -z "$servidorvpn" ] ; then
					servidorvpn=$servidorvpndefault
				fi
				if [ -z "$usuariovpn" ] ; then
					clear
					echo ""
					echo ""
					echo "Usuario Invalido"
					echo ""
					echo ""
					
				else
					break;
				fi
			done
				echo ""
				echo ""
				echo "Servidor: $servidorvpn"
				echo "Usuario: $usuariovpn"
				echo "Senha: $senhavpn"
				echo ""
				echo ""
			

			VPN=$(! [ -z "$(ifconfig | grep 'ppp')" ] &&  ifconfig  ppp0 | grep "inet" | awk {'print $2'})
			if ! [ -z "$VPN" ] ; then
				ps aux | grep pppd | grep simplesip | awk {'print $2'} | xargs kill -9
				echo "Desativando interface existente: $VPN"
				for i in {10..1};do sleep 1 && echo -n "$i ";done
				echo ""
			fi


			echo "$usuariovpn simplesip $senhavpn *" > /etc/ppp/chap-secrets
			echo "pty \"pptp $servidorvpn --nolaunchpppd\"" > /etc/ppp/peers/simplesip
			echo "name $usuariovpn" >> /etc/ppp/peers/simplesip
			echo "remotename simplesip" >> /etc/ppp/peers/simplesip
			echo "require-mppe-128" >> /etc/ppp/peers/simplesip
			echo "file /etc/ppp/options.pptp" >> /etc/ppp/peers/simplesip
			echo "ipparam simplesip" >> /etc/ppp/peers/simplesip
			echo "lock" > /etc/ppp/options.pptp
			echo "noauth" >> /etc/ppp/options.pptp
			echo "refuse-pap" >> /etc/ppp/options.pptp
			echo "refuse-eap" >> /etc/ppp/options.pptp
			echo "refuse-chap" >> /etc/ppp/options.pptp
			echo "refuse-mschap" >> /etc/ppp/options.pptp
			echo "nobsdcomp" >> /etc/ppp/options.pptp
			echo "nodeflate" >> /etc/ppp/options.pptp
			echo '#!/bin/bash' > /etc/ppp/ip-up.local
			echo "" >> /etc/ppp/ip-up.local
			echo "case \"\$5\" in" >> /etc/ppp/ip-up.local
			echo "        10.254.254.1)" >> /etc/ppp/ip-up.local
			echo "              /sbin/route add -net 10.252.252.0/24 gw 10.254.254.1" >> /etc/ppp/ip-up.local
			echo "        		/sbin/route add -net 192.168.115.0/24 gw 10.254.254.1" >> /etc/ppp/ip-up.local
			echo "              ;;" >> /etc/ppp/ip-up.local
			echo "        *)" >> /etc/ppp/ip-up.local
			echo "esac" >> /etc/ppp/ip-up.local
			chmod 777 /etc/ppp/ip-up.local
			
			
			modulo=$(lsmod | grep ppp_mppe)
			if [ -z "$modulo" ] ; then
				modprobe ppp_mppe
			fi

			ppp_mppe=$(grep "^modprobe ppp_mppe" /etc/rc.local)
			if [ -z "$ppp_mppe" ] ; then
			        echo "modprobe ppp_mppe" >> /etc/rc.local
			fi

			pppd call simplesip
			echo "Discando..."
			for i in {10..1};do sleep 1 && echo -n "$i ";done

			VPN=$(! [ -z "$(ifconfig | grep 'ppp')" ] &&  ifconfig  ppp0 | grep "inet" | awk {'print $2'})
                        if [ -z "$VPN" ] ; then
				clear
                                echo ""
                                echo ""
                                echo "A Interface VPN nao esta disponivel"
                                echo ""
                                echo ""


                        else
				clear
                                echo ""
                                echo ""
                                echo "Interface VPN $VPN"
                                echo ""
						fi
                        
                ;;
 
                6)
                        clear
                        echo " "
                        echo " "
						route -n
                        echo " "
                        echo " "

                ;;


                7)
						/bin/rm -rf /tmp/sip_vpn.pid
                        exit;
                ;;


                *)
                        clear
                        echo " "
                        echo "Opçao Invalida!"
                        echo " "
                        echo " "
                ;;
        esac

done 
}

VPN=$(! [ -z "$(ifconfig | grep 'ppp')" ] &&  ifconfig  ppp0 | grep "inet" | awk {'print $2'})
if [ -z "$VPN" ] ; then
	clear
        echo ""
        echo ""
        echo "A Interface VPN nao esta disponivel"
        echo ""
        echo ""
	menu

else
	clear
        echo ""
        echo ""
        echo "Interface VPN $VPN"
	echo ""
	menu
	echo ""
	echo ""
	echo "Entre em contato com o Suporte Tecnico para prosseguir com a instalacao"
	echo "Contatos: (65) 3616-8280 / suporte@simplesip.com.br"
        echo ""
        echo ""
fi