server_addr not set

[jessielaf]

I don't know if this is the right place. But I have problems with connecting to the SSE endpoint. Sometimes it works sometimes it doesn't. I get this error

"server": self.server_addr,
    AttributeError: 'NoneType' object has no attribute 'value'

Do you maybe know what is going on and how I can fix it?

[jkarneges]

Hmm, that line doesn't seem to be in the codebase. If it's from a stack trace, do you have more of it?

[jessielaf]

Sorry, I forgot to add the traceback.

Traceback (most recent call last):
  File "C:\Users\Jessie\AppData\Local\pypoetry\Cache\virtualenvs\effe-S2ztncmJ-py3.7\lib\site-packages\daphne\http_protocol.py", line 179, in process
    "server": self.server_addr,
AttributeError: 'NoneType' object has no attribute 'value'

I also use WebSockets and have a custom middleware I will share. Maybe it has something to do with that. The websocket never gives this error by the way.

application = ProtocolTypeRouter(
    {
        "http": URLRouter(
            [
                url(
                    r"^events/(?P<channel>\w+)/",
                    TokenAuthMiddleware(URLRouter(django_eventstream.routing.urlpatterns)),
                ),
                url(r"", AsgiHandler),
            ]
        ),
        "websocket": TokenAuthMiddleware(URLRouter([path("schedule/", ScheduleConsumer),])),
    }
)

class TokenAuthMiddleware:
    def __init__(self, inner):
        self.inner = inner

    def __call__(self, scope):
        close_old_connections()

        headers = dict(scope["headers"])
        if b"cookie" in headers:
            cookie = SimpleCookie()
            cookie.load(headers[b"cookie"].decode())

            authentication = JWTAuthentication()
            validated_token = authentication.get_validated_token(cookie.get("Authorization").value)
            scope["user"] = authentication.get_user(validated_token)

        return self.inner(scope)

[jkarneges]

I wonder if this is a dependency versions problem.

Here's what is used by the chat example in this repo: https://github.com/fanout/django-eventstream/blob/master/examples/chat/requirements.txt

You could try pinning to the same versions and seeing if it works. I know in the past there have been issues with asgiref/channels/daphne being out of alignment.

[jessielaf]

The only difference I have is Django at 3.0.4 but these problems were occurring before me upgrading Django

[jessielaf]

Do you have any idea why this is happening?

[jkarneges]

No idea. A reproducible example would help. Maybe apply your middleware to the chat example?