Add password to webUI after update if there is none

automated install/basic-install.sh

@@ -994,6 +994,11 @@ configureSelinux() {
 }
 
 displayFinalMessage() {
+	if [ ! -z $pw ]; then
+		pwstring="Note: As security measure a password has been installed for your web interface\n The currently set password is\n                                ${pw}\n\n You can always change it using\n                                pihole -a -p new_password"
+	else
+		pswsting=""
+	fi
 	# Final completion message to user
 	whiptail --msgbox --backtitle "Make it so." --title "Installation Complete!" "Configure your devices to use the Pi-hole as their DNS server using:
 
@@ -1003,7 +1008,8 @@ IPv6:	${IPV6_ADDRESS}
 If you set a new IP address, you should restart the Pi.
 
 The install log is in /etc/pihole.
-View the web interface at http://pi.hole/admin or http://${IPV4_ADDRESS%/*}/admin" ${r} ${c}
+View the web interface at http://pi.hole/admin or http://${IPV4_ADDRESS%/*}/admin
+${string}" ${r} ${c}
 }
 
 update_dialogs() {
@@ -1122,6 +1128,12 @@ main() {
 	# Move the log file into /etc/pihole for storage
 	mv ${tmpLog} ${instalLogLoc}
 
+	# Add password to web UI if there is none
+	if [[ $(grep 'WEBPASSWORD' -c /etc/pihole/setupVars.conf) == 0 ]] ; then
+	    pw=$(tr -dc _A-Z-a-z-0-9 < /dev/urandom | head -c 8)
+	    pihole -a -p ${pw}
+	fi
+
 	if [[ "${useUpdateVars}" == false ]]; then
 	    displayFinalMessage
 	fi
@@ -1144,6 +1156,15 @@ main() {
     echo "::: View the web interface at http://pi.hole/admin or http://${IPV4_ADDRESS%/*}/admin"
 	else
 		echo "::: Update complete!"
+		if [ ! -z $pw ]; then
+			echo ":::"
+			echo "::: Note: As security measure a password has been installed for your web interface"
+			echo "::: The currently set password is"
+			echo ":::                                ${pw}"
+			echo ":::"
+			echo "::: You can always change it using"
+			echo ":::                                pihole -a -p new_password"
+		fi
 	fi
 
 	echo ":::"