FRITZ!Box Callmonitor shell script

callmonitor.sh

#!/bin/bash

OLDIFS=$IFS

ask() {
	# http://djm.me/ask
	while true; do

		if [ "${2:-}" = "Y" ]; then
			prompt="Y/n"
			default=Y
		elif [ "${2:-}" = "N" ]; then
			prompt="y/N"
			default=N
		else
			prompt="y/n"
			default=
		fi

		# Ask the question - use /dev/tty in case stdin is redirected from somewhere else
		read -p "$1 [$prompt] " REPLY </dev/tty

		# Default?
		if [ -z "$REPLY" ]; then
			REPLY=$default
		fi

		# Check if the reply is valid
		case "$REPLY" in
			Y*|y*) return 0 ;;
			N*|n*) return 1 ;;
		esac

	done
}

function trim {
	echo -n "$@" | sed 's/^[[:space:]]*(.+)[[:space:]]*$/\\1/'
}

while [ true ]; do # Main check Loop

	echo "Connecting..."

	nc 192.168.2.1 1012 | while read line; do

		declare -a info

		echo -n "* "

		IFS=';'
		read -r -a info <<< "$line"

		time=${info[0]}
		cmd=${info[1]}
		connection_id=${info[2]}

		echo -n "$time " | tee -a $LOGFILE
		
		if [ $cmd = "RING" ]; then
			caller=${info[3]}
			dest=${info[4]}
			method=${info[5]}

			echo "[RING] incoming from $caller to us, $dest, via $method" | tee -a $LOGFILE
		elif [ $cmd = "CALL" ]; then
			msn=${info[3]}
			src=${info[4]}
			dest=${info[5]}
			method=${info[5]}

			echo "[CALL] outgoing to $dest from us, $src->$msn, via $method" | tee -a $LOGFILE
		elif [ $cmd = "CONNECT" ]; then
			msn=${info[3]}
			dest=${info[4]}

			echo "[CONNECT] established connection with $dest" | tee -a $LOGFILE
		elif [ $cmd = "DISCONNECT" ]; then
			duration=${info[3]}

			echo "[DISCONNECT] connection terminated" | tee -a $LOGFILE
		else
			>&2 echo "Unknown command: $line (this shouldn't happen)"
		fi
	done
done