# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.


"""Cred errors."""

class Unauthorized(Exception):
"""Standard unauthorized error."""



class LoginFailed(Exception):
"""
The user's request to log in failed for some reason.
"""



class UnauthorizedLogin(LoginFailed, Unauthorized):
"""The user was not authorized to log in.
"""



class UnhandledCredentials(LoginFailed):
"""A type of credentials were passed in with no knowledge of how to check
them. This is a server configuration error - it means that a protocol was
connected to a Portal without a CredentialChecker that can check all of its
potential authentication strategies.
"""



class LoginDenied(LoginFailed):
"""
The realm rejected this login for some reason.

Examples of reasons this might be raised include an avatar logging in
too frequently, a quota having been fully used, or the overall server
load being too high.
"""