D-link 932L - shell script to enable, disable or verify status of motion detection

dlink932_motion_detection.sh

#!/bin/bash

OPERATION=""
IP_ADDRESS=""
DEFAULT_IP="192.168.1.8"
USERNAME=""
PASSWORD=""
USAGE="Usage: $0 <on|off|status> <username> <password> [ip_address]"

#Checks number of input parameters
case $# in
	"3")
		OPERATION=$1
		USERNAME=$2
		PASSWORD=$3
		#IP_ADDRESS=$DEFAULT_IP
		IP_ADDRESS=$(host dcs-932l|head -1|awk '{print $4}')
		;;
	"4")
		OPERATION=$1
		USERNAME=$2
		PASSWORD=$3
		IP_ADDRESS=$4
		;;
	*)
		echo $USAGE
		exit 1
		;;
esac

#Headers
HEADER_USER_AGENT="User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0"
HEADER_ACCEPT="Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"
HEADER_ACCEPT_LANGUAGE="Accept-Language: it-IT,it;q=0.8,en-US;q=0.5,en;q=0.3"
HEADER_REFERER="Referer: http://$IP_ADDRESS/motion.htm"
HEADER_CONTENT_TYPE="Content-Type: application/x-www-form-urlencoded"
HEADER_CONNECTION="Connection: keep-alive"
HEADER_UPGRADE_INSECURE_REQUESTS="Upgrade-Insecure-Requests: 1"

case $OPERATION in
	"on"|"ON")
		curl "http://$IP_ADDRESS/setSystemMotion" -H "Host: $IP_ADDRESS" -H "$HEADER_USER_AGENT" -H "$HEADER_ACCEPT" -H "$HEADER_ACCEPT_LANGUAGE" --compressed -H "$HEADER_REFERER" -H "$HEADER_CONTENT_TYPE" -u $USERNAME:$PASSWORD -H "$HEADER_CONNECTION" -H "$HEADER_UPGRADE_INSECURE_REQUESTS" --data "ReplySuccessPage=motion.htm&ReplyErrorPage=motion.htm&MotionDetectionEnable=1&MotionDetectionScheduleDay=0&MotionDetectionScheduleMode=0&MotionDetectionSensitivity=30&ConfigSystemMotion=Save"
		;;
	"off"|"OFF")
		curl "http://$IP_ADDRESS/setSystemMotion" -H "Host: $IP_ADDRESS" -H "$HEADER_USER_AGENT" -H "$HEADER_ACCEPT" -H "$HEADER_ACCEPT_LANGUAGE" --compressed -H "$HEADER_REFERER" -H "$HEADER_CONTENT_TYPE" -u $USERNAME:$PASSWORD -H "$HEADER_CONNECTION" -H "$HEADER_UPGRADE_INSECURE_REQUESTS" --data "ReplySuccessPage=motion.htm&ReplyErrorPage=motion.htm&MotionDetectionEnable=0&MotionDetectionScheduleDay=0&ConfigSystemMotion=Save"
		;;
	"status"|"STATUS")
		VALUE=$(curl -v -silent "http://$IP_ADDRESS/motion.htm" -H "Host: $IP_ADDRESS" -H "$HEADER_USER_AGENT" -H "$HEADER_ACCEPT" -H "$HEADER_ACCEPT_LANGUAGE" --compressed -H "$HEADER_REFERER" -H "$HEADER_CONTENT_TYPE" -u $USERNAME:$PASSWORD -H "$HEADER_CONNECTION" -H "$HEADER_UPGRADE_INSECURE_REQUESTS" 2>&1 | grep name=MotionDetectionEnable | awk '/checked/{ print $4 }')
		case $VALUE in
		"value=0")
			echo "OFF"
			;;
		"value=1")
			echo "ON"
			;;
		*)
			echo "undefined"
			;;
		esac
		;;
	*)
		echo $USAGE
		exit 1
		;;
esac
exit 0