ChallengeLoginSystem

#!/bin/bash

# Predefined username and password
correct_user="admin"
correct_pw="12345"

# Account lockout settings
max_attempts=3 # Maximum allowed failed login attempts
lockout_duration=60 # Lockout duration in seconds (e.g., 60 seconds)

# Initialize failed attempts count
failed_attempts=0

# Account lockout state
account_locked=false

# Function to unlock the account
unlock_account() {
    account_locked=false
    failed_attempts=0
}

while true; do
    # Check if the account is locked
    if [ "$account_locked" = true ]; then
        echo "Account is temporarily locked. Please wait."
        sleep $lockout_duration
        unlock_account
    fi

    # Prompt the user to enter a username
    read -p "Enter your username: " entered_username

    # Prompt the user to enter a password (hide input)
    read -s -p "Enter your password: " entered_password
    echo

    # Check if entered credentials match predefined
    if [ "$entered_username" == "$correct_user" ] && [ "$entered_password" == "$correct_pw" ]; then
        echo "Login successful. Welcome, $entered_username!"
        unlock_account
        break
    else
        failed_attempts=$((failed_attempts + 1))
        if [ $failed_attempts -ge $max_attempts ]; then
            echo "Login failed. Account temporarily locked. Please wait."
            account_locked=true
        else
            echo "Login failed. Please check your username and password."
        fi
    fi
done