问题在于您无法从异步上下文访问同步代码。这是适用于Django 3.0的TokenAuthMiddleware
:
from channels.auth import AuthMiddlewareStack
from channels.db import database_sync_to_async
from django.contrib.auth.models import AnonymousUser
from rest_framework.authtoken.models import Token
@database_sync_to_async
def get_user(headers):
try:
token_name, token_key = headers[b'authorization'].decode().split()
if token_name == 'Token':
token = Token.objects.get(key=token_key)
return token.user
except Token.DoesNotExist:
return AnonymousUser()
class TokenAuthMiddleware:
def __init__(self, inner):
self.inner = inner
def __call__(self, scope):
return TokenAuthMiddlewareInstance(scope, self)
class TokenAuthMiddlewareInstance:
"""
Yeah, this is black magic:
https://github.com/django/channels/issues/1399
"""
def __init__(self, scope, middleware):
self.middleware = middleware
self.scope = dict(scope)
self.inner = self.middleware.inner
async def __call__(self, receive, send):
headers = dict(self.scope['headers'])
if b'authorization' in headers:
self.scope['user'] = await get_user(headers)
inner = self.inner(self.scope)
return await inner(receive, send)
TokenAuthMiddlewareStack = lambda inner: TokenAuthMiddleware(AuthMiddlewareStack(inner))
就这样使用:
from myapi.utils import TokenAuthMiddlewareStack
from myapi.websockets import WSAPIConsumer
application = ProtocolTypeRouter({
"websocket": TokenAuthMiddlewareStack(
URLRouter([
path("api/v1/ws", WSAPIConsumer),
]),
),
})
application = SentryAsgiMiddleware(application)
TypeError: __call__()缺少2个必需的位置参数:'receive'和'send'
- tapion