Add user authentication and registration features
- Implement login and registration HTML templates for user authentication. - Create user management functions in user.py for handling user data, including adding, deleting, and updating users. - Introduce password hashing and strength checking for secure user credentials. - Add terms of service and privacy policy pages to the website. - Enhance main page with dynamic content based on user session status.
This commit is contained in:
Maximilian G.
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from pymongo import MongoClient
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import hashlib
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from bson.objectid import ObjectId
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def check_password_strength(password):
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"""
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Check if a password meets minimum security requirements.
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Args:
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password (str): Password to check
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Returns:
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bool: True if password is strong enough, False otherwise
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"""
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if len(password) < 6:
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return False
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return True
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def hashing(password):
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"""
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Hash a password using SHA-512.
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Args:
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password (str): Password to hash
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Returns:
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str: Hexadecimal digest of the hashed password
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"""
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return hashlib.sha512(password.encode()).hexdigest()
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def check_nm_pwd(username, password):
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"""
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Verify username and password combination.
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Args:
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username (str): Username to check
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password (str): Password to verify
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Returns:
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dict: User document if credentials are valid, None otherwise
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"""
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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hashed_password = hashlib.sha512(password.encode()).hexdigest()
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user = users.find_one({'Username': username, 'Password': hashed_password})
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client.close()
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return user
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def add_user(username, password, name, last_name):
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"""
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Add a new user to the database.
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Args:
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username (str): Username for the new user
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password (str): Password for the new user
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Returns:
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bool: True if user was added successfully, False if password was too weak
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"""
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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if not check_password_strength(password):
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return False
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users.insert_one({'Username': username, 'Password': hashing(password), 'Admin': False, 'active_ausleihung': None, 'name': name, 'last_name': last_name})
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client.close()
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return True
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def make_admin(username):
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"""
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Grant administrator privileges to a user.
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Args:
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username (str): Username of the user to promote
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Returns:
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bool: True if user was promoted successfully
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"""
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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users.update_one({'Username': username}, {'$set': {'Admin': True}})
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client.close()
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return True
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def remove_admin(username):
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"""
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Remove administrator privileges from a user.
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Args:
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username (str): Username of the user to demote
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Returns:
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bool: True if user was demoted successfully
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"""
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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users.update_one({'Username': username}, {'$set': {'Admin': False}})
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client.close()
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return True
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def get_user(username):
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"""
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Retrieve a specific user by username.
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Args:
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username (str): Username to search for
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Returns:
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dict: User document or None if not found
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"""
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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users_return = users.find_one({'Username': username})
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client.close()
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return users_return
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def check_admin(username):
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"""
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Check if a user has administrator privileges.
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Args:
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username (str): Username to check
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Returns:
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bool: True if user is an administrator, False otherwise
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"""
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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user = users.find_one({'Username': username})
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client.close()
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return user and user.get('Admin', False)
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def delete_user(username):
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"""
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Delete a user from the database.
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Administrative function for removing user accounts.
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Args:
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username (str): Username of the account to delete
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Returns:
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bool: True if user was deleted successfully, False otherwise
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"""
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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result = users.delete_one({'username': username})
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client.close()
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if result.deleted_count == 0:
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# Try with different field name
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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result = users.delete_one({'Username': username})
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client.close()
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return result.deleted_count > 0
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def get_name(username):
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"""
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Retrieve the name that is assosiated with the username.
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Returns:
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str: String of name
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"""
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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user = users.find_one({'Username': username})
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name = user.get("name")
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return name
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def get_last_name(username):
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"""
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Retrieve the last_name that is assosiated with the username.
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Returns:
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str: String of last_name
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"""
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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user = users.find_one({'Username': username})
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name = user.get("last_name")
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return name
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def get_all_users():
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"""
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Retrieve all users from the database.
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Administrative function for user management.
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Returns:
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list: List of all user documents
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"""
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try:
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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all_users = list(users.find())
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client.close()
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return all_users
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except Exception as e:
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return []
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def update_password(username, new_password):
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"""
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Update a user's password with a new one.
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Args:
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username (str): Username of the user
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new_password (str): New password to set
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Returns:
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bool: True if password was updated successfully, False otherwise
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"""
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try:
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if not check_password_strength(new_password):
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return False
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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# Hash the new password
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hashed_password = hashing(new_password)
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# Update the user's password
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result = users.update_one(
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{'Username': username},
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{'$set': {'Password': hashed_password}}
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)
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client.close()
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return result.modified_count > 0
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except Exception as e:
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print(f"Error updating password: {e}")
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return False
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def update_user_name(username, name, last_name):
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"""
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Update a user's name and last name.
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Args:
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username (str): Username of the user
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name (str): New first name
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last_name (str): New last name
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Returns:
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bool: True if updated successfully, False otherwise
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"""
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try:
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client = MongoClient('localhost', 27017)
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db = client['Inventarsystem']
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users = db['users']
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result = users.update_one(
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{'Username': username},
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{'$set': {'name': name, 'last_name': last_name}}
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)
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client.close()
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return True
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except Exception as e:
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print(f"Error updating user name: {e}")
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return False
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