#!/usr/bin/env bash
set -eu
trap 'pkill -f nc || true' EXIT
trap exit SIGINT SIGTERM
if [ "$2" != "ipinfo" ]; then
# Serve the page
HTML="VirtualDSM
$2
"
LENGTH="${#HTML}"
RESPONSE="HTTP/1.1 200 OK\nContent-Length: ${LENGTH}\nConnection: close\n\n$HTML\n\n"
while true; do
echo -en "$RESPONSE" | nc -lp "${1:-5000}" & wait $!
done
exit 0
fi
SH_SCRIPT="/run/ipinfo.sh"
{ echo "INFO=\$(curl -s -m 5 -S http://127.0.0.1:2210/read?command=10 2>&1)"
echo "rest=\${INFO#*http_port}"
echo "rest=\${rest#*:}"
echo "rest=\${rest%%,*}"
echo 'PORT=\${rest%%\"*}'
echo "rest=\${INFO#*eth0}"
echo "rest=\${rest#*ip}"
echo "rest=\${rest#*:}"
echo 'rest=\${rest#*\"}'
echo 'IP=\${rest%%\"*}'
echo "BODY=\"The location of DSM is http://\${IP}:\${PORT}\""
echo "HTML=\"VirtualDSM
\$BODY
\""
echo 'LENGTH="\${#HTML}"'
echo 'RESPONSE="HTTP/1.1 200 OK\nContent-Length: \${LENGTH}\nConnection: close\n\n\$HTML\n\n"'
echo 'echo \$RESPONSE'
} > "$SH_SCRIPT"
chmod +x "$SH_SCRIPT"
while true ; do
nc -lp "${1:-5000}" -e "$SH_SCRIPT" & wait $!
done