120 lines
3.8 KiB
Python
120 lines
3.8 KiB
Python
import json
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from datetime import datetime
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from channels.generic.websocket import AsyncWebsocketConsumer
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from channels.db import database_sync_to_async
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class ChatConsumer(AsyncWebsocketConsumer):
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async def connect(self):
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self.room_name = self.scope['url_route']['kwargs']['room_name']
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self.room_group_name = f'chat_{self.room_name}'
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# Join room group
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await self.channel_layer.group_add(
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self.room_group_name,
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self.channel_name
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)
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await self.accept()
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async def disconnect(self, close_code):
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# Leave room group
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await self.channel_layer.group_discard(
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self.room_group_name,
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self.channel_name
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)
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# Receive message from WebSocket
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async def receive(self, text_data):
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text_data_json = json.loads(text_data)
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message_type = text_data_json.get('type', 'chat_message')
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message = text_data_json.get('message', '')
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username = text_data_json.get('username', 'Anonymous')
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# Send message to room group
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await self.channel_layer.group_send(
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self.room_group_name,
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{
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'type': message_type,
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'message': message,
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'username': username,
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'timestamp': datetime.now().strftime('%H:%M:%S')
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}
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)
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# Receive message from room group
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async def chat_message(self, event):
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message = event['message']
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username = event['username']
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timestamp = event['timestamp']
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# Send message to WebSocket
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await self.send(text_data=json.dumps({
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'type': 'chat_message',
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'message': message,
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'username': username,
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'timestamp': timestamp
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}))
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async def user_join(self, event):
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username = event['username']
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timestamp = event['timestamp']
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await self.send(text_data=json.dumps({
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'type': 'user_notification',
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'message': f'{username} 加入了聊天室',
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'username': username,
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'timestamp': timestamp
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}))
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async def user_leave(self, event):
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username = event['username']
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timestamp = event['timestamp']
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await self.send(text_data=json.dumps({
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'type': 'user_notification',
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'message': f'{username} 离开了聊天室',
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'username': username,
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'timestamp': timestamp
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}))
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class EchoConsumer(AsyncWebsocketConsumer):
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async def connect(self):
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await self.accept()
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async def disconnect(self, close_code):
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pass
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async def receive(self, text_data):
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try:
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# 解析接收到的JSON数据
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data = json.loads(text_data)
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message = data.get('message', '').strip()
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if message:
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# 返回回声消息
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response = {
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'type': 'echo_message',
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'original_message': message,
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'echo_message': f'回声: {message}',
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'timestamp': datetime.now().strftime('%H:%M:%S')
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}
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else:
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# 如果消息为空
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response = {
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'type': 'error',
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'message': '消息不能为空',
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'timestamp': datetime.now().strftime('%H:%M:%S')
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}
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await self.send(text_data=json.dumps(response, ensure_ascii=False))
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except json.JSONDecodeError:
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# JSON解析错误
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error_response = {
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'type': 'error',
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'message': '无效的JSON格式',
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'timestamp': datetime.now().strftime('%H:%M:%S')
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}
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await self.send(text_data=json.dumps(error_response, ensure_ascii=False)) |