how do i complete this Code: 0415

from flask import Flask, request, render_template, redirect, url_for, session from flask_session import Session import threading import socket app = Flask(__name__) app.config['SECRET_KEY'] = 'your_secret_key' app.config['SESSION_TYPE'] = 'filesystem' Session(app) @app.route('/', methods=['GET', 'POST']) def home(): if request.method == 'POST': pin_code = request.form.get('pin_code') if pin_code == '0415': session['authenticated'] = True return redirect(url_for('proxy')) else: session['attempts'] = session.get('attempts', 0) + 1 if session['attempts'] >= 3: return render_template('home.html', error='Invalid PIN code. Please try again.', shake=True) else: return render_template('home.html', error='Invalid PIN code. Please try again.') else: return render_template('home.html') @app.route('/proxy') def proxy(): if not session.get('authenticated'): return redirect(url_for('home')) # Start the proxy server threading.Thread(target=start_proxy_server).start() return 'Proxy server started' def start_proxy_server(): proxy_ip = "your_proxy_ip" proxy_port = 8080 proxy_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) proxy_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # Enable socket reuse proxy_socket.bind((proxy_ip, proxy_port)) proxy_socket.listen(5) print(f"Unify Proxy Server listening on {proxy_ip}:{proxy_port}") while True: client_socket, client_address = proxy_socket.accept() print(f"Accepted connection from {client_address[0]}:{client_address[1]}") # Create a new thread to handle the client request client_thread = threading.Thread(target=handle_client, args=(client_socket,)) client_thread.start() def handle_client(client_socket): # Implement your proxy server logic here pass if __name__ == '__main__': app.run(debug=Tru

To complete the code, you need to implement the logic for the `handle_client` function, which will handle the client request in the proxy server.

Here's an example of how you could implement the `handle_client` function:

```python
def handle_client(client_socket):
# Receive client request
request_data = client_socket.recv(1024)
# Process the request if needed
# E.g., modify headers, redirect to another server, etc.
# You can use libraries like requests, urllib, etc.

# Example: Forward the request to a target server
target_host = 'target_server_ip'
target_port = 80

target_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
target_socket.connect((target_host, target_port))

# Optionally, you could modify the request here before sending it
target_socket.sendall(request_data)

# Receive the response from the server
response_data = b''
while True:
chunk = target_socket.recv(1024)
if not chunk:
break
response_data += chunk

# Optionally, you could modify the response here before sending it back to the client
client_socket.sendall(response_data)

# Close the connections
client_socket.shutdown(socket.SHUT_RDWR)
client_socket.close()
target_socket.shutdown(socket.SHUT_RDWR)
target_socket.close()
```

Make sure to replace `'target_server_ip'` with the IP address or domain name of the server you want to forward the request to. You can also modify the request and response handling based on your specific requirements.

Note: This is a basic example of a proxy server implementation. Depending on your use case, you may need to handle more complex scenarios, such as HTTPS proxy or handling different types of requests.