post-ip

#!/bin/bash
###############################################################
#
#  ./post-ip 
#
#  post hostname, nic name and ip info to
#
#  https://seawolf.io/post
#
#  SEAWOLF.IO keeps user posted data for maximum 10 minutes.
#  After 10 minutes, the data will be destroyed. Within the
#  10 minutes, the posted data can be accessed only from the
#  same IP where the data are posted. It is a free service 
#  provided by Seawolf Technologies Inc.
#
#  by Sam Wen @ 10/27/2018
#
###############################################################

# wait until network links are up
#
while true; do
  uplinks=$(ip -o link |  grep -v '^.: lo:' | awk -F ':| ' '{print $3, $11}' | grep -c 'UP')
  if [ $uplinks -gt 0 ]; then
    break
  else
    sleep 1
  fi
done
 
# wait at least 5 minutes for all up links have ips
# 
count=0
while true; do 
  ips=$(ip -o address | grep -v '^.: \(lo\|.* inet6 \)' | wc -l)
  if [ $ips -eq $uplinks ]; then
    break
  elif [ $ips -eq 0 ]; then
    sleep 1
  elif [ $count -gt 300 ]; then
    break
  else
    ((count++))
    sleep 1
  fi
done

ips=($(ip -o address | grep -v '^.: \(lo\|.* inet6 \)' | awk -F ' |/' '{print $2, $7}'))

# generate json string
#
ips_count=${#ips[*]}
ips_row=$((ips_count/2))

json="{\"hostname\": \"$(hostname)\""

for ((i=0; i<$ips_row; i++));
do
  start=$((i*2))
  iface=${ips[$start]}
  ip=${ips[$((start+1))]}

  line="\"$iface\": \"$ip\""
  json="$json, $line"
done

json="$json}"

echo $json

# post it
#
curl -s -d "$json" -H "Content-Type: application/json" -X POST https://seawolf.io/post