python-projects/otp-generator.py at main · rameshgehlot76/python-projects · GitHub

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# OTP Generator with Time Limit Automatically Send on Email

import random
import time
import smtplib
from email.mime.text import MIMEText
from email.mime.multipart import MIMEMultipart

print("🥷 Welcome to Secure Login System")

email = input("📧 Enter your Email: ")

# Generate OTP
otp = random.randint(100000,999999)
expiry_time = time.time() + 120  # OTP valid for 2 minutes(120 seconds)
attempts = 3

# --- Email Part ---
sender_email = "rameshgehlot2210@gmail.com"
sender_password = "wcos fdvg xedf nvvl"
receiver_email = email

msg = MIMEMultipart("alternative")
msg["From"]    = sender_email
msg["To"]      = receiver_email
msg["Subject"] ="Your OTP!"

html_body = f"""
<html>
  <body>
    <h2 style="color: red;">Secure System! 🧑‍💻</h2>
    <p><b>Hi! Your OTP To Access Secure System is [{otp}]</b></p>
    <p><strong>Valid for 2 Minutes. Don't Share with Anyone</strong></p>
  </body>
</html>
"""
msg.attach(MIMEText(html_body, "html"))

with smtplib.SMTP_SSL("smtp.gmail.com", 465) as server:
    server.login(sender_email, sender_password)
    server.sendmail(sender_email, receiver_email, msg.as_string())

print("\n💬 OTP has been sent to your Email")
# print("(Practice mode OTP:", otp )  # remove in production

# Main loop for OTP verification
while attempts > 0:
    user_otp = input("Enter OTP: ")

    if time.time() > expiry_time:
        print("⏰ OTP expired! Please request a new one.")
        break

    if user_otp == str(otp):
        print("✅ OTP verified! Access granted.")
        break

    else:
        attempts -= 1
        print(f"❌ Incorrect OTP! Attempts left: {attempts}")

    if attempts == 0:
        print("🚫 No more attempts left.")
        break