mirror of
https://github.com/fastapi-users/fastapi-users.git
synced 2025-08-15 11:11:16 +08:00
c4de66b81c
* Implement Transport classes * Implement authentication strategy classes * Revamp authentication with Transport and Strategy * Revamp strategy and OAuth so that they can use a callable dependency * Update docstring * Make ErrorCode a proper Enum and cleanup unused OpenAPI utils * Remove useless check * Tweak typing in authenticator * Update docs * Improve logout/destroy token logic * Update docs * Update docs * Update docs and full examples * Apply formatting to examples * Update OAuth doc and examples * Add migration doc * Implement Redis session token * Add Redis Session documentation * RedisSession -> Redis * Fix links in docs
66 lines
1.7 KiB
Python
66 lines
1.7 KiB
Python
from typing import Any, Callable, Generic
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from fastapi import Response
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from fastapi_users import models
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from fastapi_users.authentication.strategy import (
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Strategy,
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StrategyDestroyNotSupportedError,
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)
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from fastapi_users.authentication.transport import (
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Transport,
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TransportLogoutNotSupportedError,
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)
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class AuthenticationBackend(Generic[models.UC, models.UD]):
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"""
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Combination of an authentication transport and strategy.
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Together, they provide a full authentication method logic.
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:param name: Name of the backend.
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:param transport: Authentication transport instance.
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:param get_strategy: Dependency callable returning
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an authentication strategy instance.
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"""
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name: str
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transport: Transport
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def __init__(
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self,
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name: str,
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transport: Transport,
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get_strategy: Callable[..., Strategy[models.UC, models.UD]],
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):
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self.name = name
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self.transport = transport
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self.get_strategy = get_strategy
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async def login(
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self,
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strategy: Strategy[models.UC, models.UD],
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user: models.UD,
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response: Response,
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) -> Any:
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token = await strategy.write_token(user)
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return await self.transport.get_login_response(token, response)
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async def logout(
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self,
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strategy: Strategy[models.UC, models.UD],
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user: models.UD,
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token: str,
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response: Response,
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) -> Any:
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try:
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await strategy.destroy_token(token, user)
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except StrategyDestroyNotSupportedError:
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pass
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try:
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await self.transport.get_logout_response(response)
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except TransportLogoutNotSupportedError:
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return None
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