Django频道中的self.scope['user']一直显示为AnonymousUser。

问题描述 投票:0回答:1

当我登录到我的前端时,我在django channels中的friends.consumer.py中调用self.scope['user']返回AnonymousUser,但当登录并在chat.consumer.py中调用self.scope['user']时,它显示为已登录的用户。出于某种原因,我的一个应用程序中的scope['user']可以工作,而另一个应用程序却不行。我不明白问题出在哪里。我在我的django项目中设置的路由是这样的。

路由.py

from channels.routing import ProtocolTypeRouter, URLRouter
from channels.auth import AuthMiddlewareStack
import chat.routing
import friends.routing

application = ProtocolTypeRouter ({
    'websocket': AuthMiddlewareStack(
        URLRouter(
        friends.routing.websocket_urlpatterns + chat.routing.websocket_urlpatterns
        )
    )
})

我的第二个 consumer.py 的结构与第一个 consumer.py 类似。这是我的 consumer.py,其中 scope['user']是有效的(我在第一个 consumer 中不需要 scope['user'],但我只是想测试一下它是否有效)。

聊天.消费者.py

class ChatConsumer(WebsocketConsumer):
  ...
   def connect(self):
    print(self.scope['user'])
    self.room_name = self.scope['url_route']['kwargs']['room_name']
    self.room_group_name = 'chat_%s' % self.room_name

    # Join room group
    async_to_sync (self.channel_layer.group_add)(
        self.room_group_name,
        self.channel_name
    )

    self.accept()

这段代码是我的scope['user']在登录后仍显示为匿名用户的消费者。

friends.consumer.py

class FriendRequestConsumer(JsonWebsocketConsumer):
    def connect(self):
        user = self.scope['user']
        grp = 'notifications_{}'.format(user.username)
        self.accept()
        async_to_sync(self.channel_layer.group_add(grp, self.channel_name))

这里也是我为每个应用编写的路由.py

聊天.路由.py

from django.urls import re_path

from . import consumers

websocket_urlpatterns = [
    re_path(r'^ws/friend-request-notification/$', consumers.FriendRequestConsumer),
]

聊天.路由.py

from django.urls import re_path

from . import consumers

websocket_urlpatterns = [
    re_path(r'ws/chat/(?P<room_name>\w+)/$', consumers.ChatConsumer),
]

我能够在我的reactjs前端连接到他们两个的websocket。我知道AuthMiddlewareStack允许我们拉动scope['user'],我只是不明白为什么一个能用,一个能用。会不会是我在前端没有正确连接到websocket,或者是我的一个消费者缺少了什么?我很感激你的帮助,并提前表示感谢。

为了在我的js中连接到websocket,我做了一个chat.js文件和一个notifications.js。

聊天.js

class Chat extends React.Component{
  ... 
   initialiseChat() {
this.waitForSocketConnection(()=> {
  WebSocketInstance.fetchMessages(
    this.props.username,
    this.props.match.params.id
   )
  })
WebSocketInstance.connect(this.props.match.params.id)
}
constructor(props){
  super(props)
  this.initialiseChat()
}

通知.js

class Notifications extends React.Component{
   ...
  initialiseNotification(){
  this.waitForSocketConnection(() => {
    NotificationWebSocketInstance.fetchFriendRequests(
     this.props.id
  )
  })
  NotificationWebSocketInstance.connect()
}

constructor(props){
  super(props)
  this.initialiseNotification()
}

下面是我的websocket动作。

webosocket.js (这个连接函数在chat.js中被调用)

class WebSocketService {
  ...
  connect(chatUrl) {
const path ='ws://127.0.0.1:8000/ws/chat/'+chatUrl+'/';
console.log(path)
this.socketRef = new WebSocket(path)
this.socketRef.onopen = () => {
  console.log('websocket open')

}
...
const WebSocketInstance = WebSocketService.getInstance();
export default WebSocketInstance;

这里是notification.js的websocket。

notificationWebsocket.js

class WebSocketNotifications {
 ...
 connect(){
 const path = 'ws://127.0.0.1:8000/ws/friend-request-notification/'
 console.log(path)
 this.socketRef = new WebSocket(path)
 this.socketRef.onopen = () =>{
   console.log('websocket open')
 }
 ...
 const NotificationWebSocketInstance = 
  WebSocketNotifications.getInstance();

 export default NotificationWebSocketInstance;

这里是路由.js

class BaseRouter extends React.Component {
  <Route exact path = '/chat/:id' render={(props) => <Chat {...props} 
      {...this.props} isAuthenticated={this.props.isAuthenticated} />}  
      />
    <Route exact path = '/notifications/' render={(props) => 
       <Notifications {...props} {...this.props} isAuthenticated= 
       {this.props.isAuthenticated} />}  />
django reactjs websocket scope django-channels
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