1. import time
  2. from flask import Flask, request, jsonify
  4. app = Flask(__name__)
  6. REQUEST_LIMIT = 5 # Number of requests allowed
  7. TIME_WINDOW = 60 # Time window in seconds
  9. request_counts = {} # Dictionary to store request counts per IP address
  11. def is_rate_limited(ip_address):
  12. """Checks if the IP address is rate-limited."""
  13. if ip_address not in request_counts:
  14. request_counts[ip_address] = 0
  16. if request_counts[ip_address] >= REQUEST_LIMIT:
  17. return True
  19. request_counts[ip_address] += 1
  20. return False
  22. @app.route('/form', methods=['POST'])
  23. def submit_form():
  24. """Handles form submissions with rate limiting."""
  25. ip_address = request.remote_addr
  27. if is_rate_limited(ip_address):
  28. return jsonify({"error": "Rate limit exceeded. Please try again later."}), 429 # 429 Too Many Requests
  30. try:
  31. # Process the form data
  32. data = request.get_json()
  33. # Simulate a potential failure
  34. if 'error' in data and data['error'] == 'simulated_error':
  35. return jsonify({"error": "Simulated form submission error."}), 500
  37. # ... Your form processing logic here ...
  38. print("Form submitted successfully.")
  39. return jsonify({"message": "Form submitted successfully."}), 200
  41. except Exception as e:
  42. # Handle form processing errors
  43. print(f"Form processing error: {e}")
  44. return jsonify({"error": "Internal server error."}), 500
  45. finally:
  46. # Reset request count after successful processing
  47. if ip_address in request_counts:
  48. request_counts[ip_address] = 0
  52. if __name__ == '__main__':
  53. app.run(debug=True)

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