Password Management

def initiate_forgot_password(self) -> None:
    """
    Send a verification code to the user to change their password.
    
    Actions:
        - Sends verification code via email or SMS (based on user pool config)
        - Code expires after configured time period (usually 24 hours)
        
    Note:
        Uses the username set on the Cognito instance.
        User pool must be configured with email/SMS delivery.
    """

def confirm_forgot_password(self, confirmation_code: str, password: str) -> None:
    """
    Complete the forgot password flow with verification code and new password.
    
    Args:
        confirmation_code (str): Code received via email/SMS
        password (str): New password (must meet pool requirements)
        
    Actions:
        - Validates confirmation code
        - Sets new password
        - Updates instance password attribute
        
    Raises:
        Exception: If code is invalid, expired, or password doesn't meet requirements
    """

from pycognito import Cognito

# Initialize with username
u = Cognito('your-user-pool-id', 'your-client-id', username='john.doe')

# Initiate forgot password
u.initiate_forgot_password()
print("Password reset code sent to your registered email/phone")

# User receives code and provides new password
code = input("Enter confirmation code: ")
new_password = input("Enter new password: ")

# Complete password reset
u.confirm_forgot_password(code, new_password)
print("Password successfully reset!")

# User can now authenticate with new password
u.authenticate(password=new_password)

def change_password(self, previous_password: str, proposed_password: str) -> None:
    """
    Change the user's password (requires authentication).
    
    Args:
        previous_password (str): Current password for verification
        proposed_password (str): New password (must meet pool requirements)
        
    Requirements:
        - User must be authenticated (valid access token)
        - Previous password must be correct
        - New password must meet user pool policy
        
    Actions:
        - Validates current password
        - Sets new password
        - Updates instance password attribute
        
    Raises:
        Exception: If current password is wrong or new password invalid
    """

# User must be authenticated first
u = Cognito('pool-id', 'client-id', username='user')
u.authenticate(password='current-password')

# Change password
u.change_password(
    previous_password='current-password',
    proposed_password='new-secure-password'
)

print("Password changed successfully!")

def admin_reset_password(self, username: str, client_metadata: dict = None) -> None:
    """
    Reset a user's password using admin privileges.
    
    Args:
        username (str): Username whose password to reset
        client_metadata (dict, optional): Custom workflow metadata
        
    Actions:
        - Generates temporary password or triggers reset flow
        - May send reset instructions to user
        - User will be required to set new password on next login
        
    Note:
        Exact behavior depends on user pool configuration:
        - May generate temporary password
        - May trigger forgot password flow
        - May require user to set password on next login
    """

# Admin resets user password
u = Cognito('pool-id', 'client-id')
u.admin_reset_password('target-username')
print("Password reset initiated for user")

# User will need to set new password on next login

def new_password_challenge(self, password: str, new_password: str) -> None:
    """
    Respond to new password challenge using SRP protocol.
    
    Args:
        password (str): Current/temporary password
        new_password (str): New permanent password
        
    Use cases:
        - User logging in with temporary password (admin created)
        - User forced to change password due to policy
        - First-time login after admin user creation
        
    Actions:
        - Validates current password
        - Sets new permanent password
        - Completes authentication flow
        - Sets tokens on successful completion
    """

from pycognito.exceptions import ForceChangePasswordException

u = Cognito('pool-id', 'client-id', username='new-user')

try:
    u.authenticate(password='temporary-password')
except ForceChangePasswordException:
    # User must set new password
    new_password = input("Set your new password: ")
    u.new_password_challenge(
        password='temporary-password',
        new_password=new_password
    )
    print("New password set successfully!")

def send_verification(self, attribute: str = "email") -> None:
    """
    Send attribute verification code to the user.
    
    Args:
        attribute (str): Attribute to verify ("email" or "phone_number")
        
    Actions:
        - Sends verification code to the specified attribute
        - Code expires after configured time period
        
    Requirements:
        - User must be authenticated
        - Attribute must be configured for verification in user pool
    """

def validate_verification(self, confirmation_code: str, attribute: str = "email") -> dict:
    """
    Verify user attribute using confirmation code.
    
    Args:
        confirmation_code (str): Code received via email/SMS
        attribute (str): Attribute being verified ("email" or "phone_number")
        
    Returns:
        dict: Verification response from AWS Cognito
        
    Actions:
        - Validates confirmation code
        - Marks attribute as verified
        - Updates user's verification status
    """

# Send verification code for email change
u.send_verification("email")
print("Verification code sent to your email")

# User provides verification code
code = input("Enter verification code: ")
response = u.validate_verification(code, "email")

if response['ResponseMetadata']['HTTPStatusCode'] == 200:
    print("Email verified successfully!")

from pycognito import Cognito

def forgot_password_flow(username):
    """Complete forgot password flow with user interaction."""
    u = Cognito('pool-id', 'client-id', username=username)
    
    try:
        # Step 1: Initiate forgot password
        u.initiate_forgot_password()
        print(f"Password reset code sent to registered contact method")
        
        # Step 2: Get code from user
        code = input("Enter the confirmation code: ")
        new_password = input("Enter your new password: ")
        
        # Step 3: Complete password reset
        u.confirm_forgot_password(code, new_password)
        print("Password reset successfully!")
        
        # Step 4: User can now login with new password
        u.authenticate(password=new_password)
        print("Authentication successful with new password!")
        
    except Exception as e:
        print(f"Password reset failed: {e}")

# Usage
forgot_password_flow('john.doe')

def admin_password_management():
    """Admin manages user passwords."""
    u = Cognito('pool-id', 'client-id')
    
    # Create user with temporary password
    response = u.admin_create_user(
        username='newemployee',
        temporary_password='TempPass123!',
        email='employee@company.com'
    )
    
    print("User created with temporary password")
    
    # Later, if user has issues, admin can reset
    u.admin_reset_password('newemployee')
    print("Password reset initiated for user")

admin_password_management()

from pycognito.exceptions import ForceChangePasswordException

def new_user_login(username, temp_password):
    """Handle new user first login with temporary password."""
    u = Cognito('pool-id', 'client-id', username=username)
    
    try:
        u.authenticate(password=temp_password)
        print("Login successful!")
        
    except ForceChangePasswordException:
        print("You must set a new password")
        
        # Get new password from user
        new_password = input("Enter your new password: ")
        confirm_password = input("Confirm new password: ")
        
        if new_password != confirm_password:
            print("Passwords don't match!")
            return
        
        # Set new password
        u.new_password_challenge(
            password=temp_password,
            new_password=new_password
        )
        
        print("New password set! You are now logged in.")
        print(f"Access token: {u.access_token}")

# Usage for new employee
new_user_login('newemployee', 'TempPass123!')

def secure_password_change(u):
    """Secure password change with validation."""
    
    # Verify user is authenticated
    if not u.access_token:
        print("Please authenticate first")
        return
    
    # Get current password for verification
    current_password = input("Enter current password: ")
    new_password = input("Enter new password: ")
    confirm_password = input("Confirm new password: ")
    
    # Validate passwords match
    if new_password != confirm_password:
        print("New passwords don't match!")
        return
    
    try:
        u.change_password(current_password, new_password)
        print("Password changed successfully!")
        
        # Update any stored password reference
        u.password = new_password
        
    except Exception as e:
        print(f"Password change failed: {e}")

# Usage
u = Cognito('pool-id', 'client-id', username='user')
u.authenticate(password='current-password')
secure_password_change(u)

def update_and_verify_email(u, new_email):
    """Update email and handle verification."""
    
    try:
        # Update email attribute
        u.update_profile({'email': new_email})
        print(f"Email updated to {new_email}")
        
        # Send verification code
        u.send_verification("email")
        print("Verification code sent to new email")
        
        # Get verification code from user
        code = input("Enter verification code: ")
        
        # Verify email
        response = u.validate_verification(code, "email")
        
        if response['ResponseMetadata']['HTTPStatusCode'] == 200:
            print("Email verified successfully!")
        else:
            print("Email verification failed")
            
    except Exception as e:
        print(f"Email update failed: {e}")

# Usage
u = Cognito('pool-id', 'client-id', username='user')
u.authenticate(password='password')
update_and_verify_email(u, 'newemail@example.com')