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class UserCredential

Maturity: 33

A simple data class that stores user authentication credentials consisting of a username and password.

File:
/tf/active/vicechatdev/SPFCsync/venv/lib64/python3.11/site-packages/office365/runtime/auth/user_credential.py
Lines:
1 - 9
Complexity:
simple

Purpose

UserCredential is a lightweight container class designed to encapsulate user authentication information. It provides a structured way to pass username and password pairs throughout an application, typically used in authentication workflows, API clients, or any system requiring user credential management. The class serves as a simple data transfer object (DTO) for credential information.

Source Code

class UserCredential(object):
    def __init__(self, user_name, password):
        """

        :type password: str
        :type user_name str
        """
        self.userName = user_name
        self.password = password

Parameters

Name Type Default Kind
bases object -

Parameter Details

user_name: A string representing the user's username or login identifier. This is typically a unique identifier used to authenticate the user in a system. Expected to be a non-empty string, though no validation is enforced by the class.

password: A string containing the user's password for authentication. This should be the actual password value (ideally hashed or encrypted before being passed to this class in production systems). Expected to be a string, with no length or complexity validation enforced by the class itself.

Return Value

Instantiation of the UserCredential class returns a UserCredential object with two instance attributes: 'userName' (storing the provided user_name) and 'password' (storing the provided password). The class does not have any methods that return values beyond the constructor.

Class Interface

Methods

__init__(self, user_name: str, password: str)

Purpose: Constructor that initializes a UserCredential instance with username and password

Parameters:

  • user_name: String representing the username for authentication
  • password: String representing the password for authentication

Returns: None (constructor initializes the instance)

Attributes

Name Type Description Scope
userName str Stores the username provided during initialization. Note the camelCase naming convention. instance
password str Stores the password provided during initialization. Contains sensitive authentication data. instance

Usage Example

# Create a UserCredential instance
credential = UserCredential("john_doe", "secure_password123")

# Access the stored credentials
print(credential.userName)  # Output: john_doe
print(credential.password)  # Output: secure_password123

# Typical usage in an authentication function
def authenticate(user_cred):
    # Use the credential object to verify user
    if verify_user(user_cred.userName, user_cred.password):
        return True
    return False

# Pass credentials to authentication
user_cred = UserCredential("admin", "admin123")
if authenticate(user_cred):
    print("Authentication successful")

Best Practices

  • This class stores passwords in plain text. In production environments, ensure passwords are already hashed or encrypted before creating UserCredential instances.
  • Consider implementing __repr__ and __str__ methods that do NOT expose the password for debugging purposes.
  • The class does not perform any validation on inputs. Implement validation logic in calling code or extend this class to add validation.
  • Be cautious about logging or serializing UserCredential objects as they contain sensitive information.
  • Consider using Python's dataclasses module or attrs library for more robust data classes with built-in features.
  • The userName attribute uses camelCase while the constructor parameter uses snake_case (user_name). This inconsistency should be noted when accessing attributes.
  • This class is immutable by convention but not enforced. Consider making it truly immutable by using __slots__ or properties if needed.
  • Always clear or delete UserCredential objects from memory after use to minimize exposure of sensitive data.

Tags

authentication credentials data-class user-management security dto data-transfer-object login password

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