#!/usr/bin/env python3  

""" 
	honeypot.py

	Copyright 2017,2018, 2019 (C)  Mind Chasers Inc,

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
	
"""

import sys
import argparse
from socket import socket, AF_INET, SOCK_STREAM

VERSION = '0.1b'
welcome = b"Ubuntu 18.04.2 LTS\nserver login: "

def send_email(src_address):
    """ Todo: send an email if we're scanned / probed on this port """
    pass

def honeypot(address,port=23):
    """ create a single Threaded telnet listen port """
    try:
        ski=socket(AF_INET,SOCK_STREAM)
        ski.bind((address, port))
        ski.listen()
        conn,addr = ski.accept()
        print('honeypot has been visited by ' + addr[0])
        send_email(addr[0])
        conn.sendall(welcome)
        while True:
            data=conn.recv(1024)
            if data == b'\r\n':
                ski.close()
                sys.exit()
    except: 
        ski.close()
        sys.exit()
    
if __name__ == '__main__':
    parser = argparse.ArgumentParser(description='honeypot prototype',
                                 epilog='Version: ' + str(VERSION))
    parser.add_argument('-a','--address',help='server ip address to use',action='store', required=True)   
    args = parser.parse_args()
    
    honeypot(args.address)