. Select one of the following topics, implement it in your code, and explain its basics in your report:

1. TSL/SSL (security): should secure all your packet transactions. Use Wireshark to examine the exchanged packets. You must show that it is working in the online presentation and include pieces of evidence in your report (screenshots of the packet data).

2. Object-Oriented Programming: use object-oriented programming in your coding. Describe, in your report, the basics of OO in Python, and your classes.

3. GUI: use a graphical user interface for the client. It should be easy to use and clear to read. The user should send all requests using the GUI.

(Server Script)

import json

import requests

import threading

import socketserver

# Constants

GROUP_ID = 12345 # replace with your group ID

API_KEY = "your_api_key" # replace with your API key

API_URL = "http://api.aviationstack.com/v1/flights"

# Get user input for airport code

arr_icao = input("Enter airport code: ")

# Retrieve data from API

params = {

"access_key": API_KEY,

"arr_icao": arr_icao,

"limit": 100

}

response = requests.get(API_URL, params=params)

# Extract data from response

data = response.json()

# Save data to JSON file

filename = f"{GROUP_ID}.json"

with open(filename, "w") as f:

json.dump(data, f)

# Set up server

class ThreadedTCPRequestHandler(socketserver.BaseRequestHandler):

def handle(self):

# Get client's name

self.name = self.request.recv(1024).decode().strip()

print(f"Accepted connection from {self.name}")

# Wait for requests from client

while True:

request = self.request.recv(1024).decode().strip()

# Check request type

if request == "arrived flights":

# Search data for arrived flights and send matching information

pass

elif request == "delayed flights":

# Search data for delayed flights and send matching information

pass

elif request.startswith("flights from"):

# Search data for flights from a specific city and send matching information

pass

elif request.startswith("details of flight"):

# Search data for details of a particular flight and send matching information

pass

elif request == "quit":

# Close connection and leave

break

print(f"Closed connection from {self.name}")

class ThreadedTCPServer(socketserver.ThreadingMixIn, socketserver.TCPServer):

pass

# Start server

server = ThreadedTCPServer(("localhost", 10000), ThreadedTCPRequestHandler)

server_thread = threading.Thread(target=server.serve_forever)

server_thread.daemon = True

server_thread.start()

print("Server is running")

# Wait for user input to stop server

input("Press Enter to stop server")

# Stop server

server.shutdown()

server.server_close()

(Client Script)

import socket

# Constants

SERVER_HOST = "localhost"

SERVER_PORT = 10000

# Set up client

client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

client.connect((SERVER_HOST, SERVER_PORT))

# Get user input for username

username = input("Enter username: ")

# Send username to server

client.send(username.encode())

# Display menu and wait for user input

while True:

print("""

Menu:

1. Arrived flights

2. Delayed flights

3. All flights from a specific city

4. Details of a particular flight

5. Quit

""")

choice = input("Enter your choice: ")

if choice == "1":

# Send request for arrived flights to server

pass

elif choice == "2":

# Send request for delayed flights to server

pass

elif choice == "3":

# Send request for flights from a specific city to server

pass

elif choice == "4":

# Send request for details of a particular flight to server

pass

elif choice == "5":

# Send request to quit and close connection

pass

# Close connection

client.close()