SecureUserStore (Helidon 1.4.12 API)

All Known Subinterfaces:

UserStore

All Known Implementing Classes:

ConfigUserStore

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface SecureUserStore
```
Store of users for resolving httpauth and digest authentication. This implementation does not require to provide passwords. This is a more secure approach. Keep in mind that HTTP Basic authentication is an unsafe protection, and even when combined with SSL, it still has some severe issues.

- Nested Class Summary
  
  Nested Classes
  Modifier and Type Interface Description
  
  static interface SecureUserStore.User
  Representation of a single user.
- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  Optional<SecureUserStore.User> user(String login)
  Get user based on login.

- Method Detail
  - user
```
Optional<SecureUserStore.User> user(String login)
```
    Get user based on login. The returned user may not be populated - SecureUserStore.User.roles() is never called before SecureUserStore.User.isPasswordValid(char[]). Also the missing user and user with wrong password are treated the same - so if your implementation cannot decide whether a user exists until the password is checked, you can delay that decision and just return false from SecureUserStore.User.isPasswordValid(char[]) for both cases (e.g. invalid user and invalid password).
    
    Parameters:
    
    login - login of the user (as obtained from request)
    
    Returns:
    
    User information (empty if user is not found)