check_all.sh

#!/bin/bash

is_ip6 () {
	# TODO: replace this with posix shell
	local addr=$1
        local stat=1
        if [[ "${addr}" =~ ^([a-fA-F0-9]{1,4}:){7}[a-fA-F0-9]{1,4}$ ]] ; then
                local stat=0
        elif [[ "${addr}" =~ ^.*::.*$ ]] ; then
                local fields=$(for i in $(echo "${addr}" | sed 's/:/ /g'); do echo ${i} ; done | wc -l)
                local addfield="0"
                for i in $(seq 1 $(( 7-${fields} )) ) ; do
                        local addfield="${addfield}:0"
                done
                local complete=$(sed "s/::/:${addfield}:/" <<< ${addr})
                if [[ "${complete}" =~ ^([a-fA-F0-9]{1,4}:){7}[a-fA-F0-9]{1,4}$ ]] ; then
                        local stat=0
                fi
        fi
        return ${stat}
}

uuid () {
	for file in /etc/machine-id /var/lib/dbus/machine-id /etc/hostid; do
		[ -f "${file}" ] && cat "${file}" && break
	done
}

now() {
	date --iso-8601=seconds
}

setup () {
	PATH="$PATH:/usr/lib/nagios/plugins"
	cd "$(dirname $0)"
	. config.sh

	fetch_ip6=$(dig AAAA +short ${fetch_host} | tail -n 1)
	fetch_ip4=$(dig A +short ${fetch_host} | tail -n 1)
}

print_result () {
	test ${?} -eq 0 && echo 1 || echo 0
}

addresses () {
	local addr=${1}

	if is_ip6 ${addr}; then
		rdisc_output=${rdisc_output:-$(rdisc6 -m ${device})}
		echo "${rdisc_output}" | grep DNS | grep ${addr} 1>&2
		print_result
	else
		./check_dhcp -t 30 ${device} ${addr} 1>&2
		print_result
	fi
}

dns () {
	local addr=${1}

	check_dns -H ${fetch_host} -s ${addr} 1>&2
	print_result
}

ntp () {
	# not implemented yet
	false
	print_result
}

uplink () {
	addr=${1}

	if is_ip6 ${addr}; then
		ip route add ${fetch_ip6} via ${addr} dev ${device}
		curl -6 --max-time 5 --silent "http://${fetch_host}/" 1>&2
		print_result
		ip route del ${fetch_ip6} via ${addr} dev ${device}
	else
		ip route add ${fetch_ip4} via ${addr} dev ${device}
		curl -4 --max-time 5 --silent "http://${fetch_host}/" 1>&2
		print_result
		ip route del ${fetch_ip4} via ${addr} dev ${device}
	fi
}


process_host () {
	local name=${1}
	local ip6=${2}
	local ip4=${3}
	shift 3

cat <<EOF
	${host_sep}

	{
		"name": "${name}"

EOF

	while [ ${#} -ne 0 ]; do

cat <<EOF
		,

		"${1}": [{
		    "ipv4": $( ${1} ${ip4} ),
		    "ipv6": $( ${1} ${ip6} )
		}]

EOF
		shift;
	done

cat <<EOF
	}

EOF

	host_sep=,
}

main() {

cat <<EOF
{
	"uuid": "$(uuid)",
	"name": "${name}",
	"provider": "${provider}",
	"vpn-servers": [
EOF
		process 2>/dev/null
cat <<EOF
	],

	"lastupdated": "$(now)"
}
EOF

}

setup

if [ "$1" = "post" ]; then
	main 2>/dev/null | curl --max-time 5 -s -S -X POST -d @- "${api_url}?token=${token}" > /dev/null
elif [ "$1" = "verbose" ]; then
	main
else
	main 2>/dev/null
fi