update
This commit is contained in:
xyj
parent
5c2112f047
commit
dba3bb9811
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@ -1,13 +1,15 @@
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import time
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import uvicorn
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from fastapi import FastAPI, WebSocket
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import requests
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import websockets
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import asyncio
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import json
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import paho.mqtt.client as mqtt
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from pydantic import BaseModel
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app = FastAPI()
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class BaseResponse(BaseModel):
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code: int = 200
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@ -59,17 +61,17 @@ async def start(username, device):
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try:
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# 如果定时任务不存在，那么直接进行推流。当用户退出界面时，创建任务
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if username not in user_sched:
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print(username + "开始推流")
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res = requests.get(rtsp_MediaInfo + device)
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if res.status_code != 200:
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return BaseResponse(code=500, msg="ZLMediakit Server Error!").json()
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# 转换为json
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res = res.json()
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if 'code' in res and res['code'] == 0:
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return BaseResponse(code=200, msg=username + ",Do not repeat the push stream").json()
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return BaseResponse(code=200, msg=username + ",Do not repeat push stream").json()
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# 开始推流
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get_times = 50
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# 启动推流程序
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print(username + "开始推流")
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push_stream(username, device)
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# 查看请求 ，ZLMediakit是否已经生成了mp4文件,生成了就给前端返回
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while True:
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@ -87,7 +89,7 @@ async def start(username, device):
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get_times -= 1
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if get_times == 0:
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# 请求次数达到50次就退了吧
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break
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return BaseResponse(code=500, msg="ZLMediakit Server Error!").json()
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await asyncio.sleep(1)
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return BaseResponse(code=200, msg="success").json()
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# 如果定时任务存在，那么取消上次的任务。当用户退出界面时，创建任务
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@ -125,7 +127,7 @@ def close_stream(username, device):
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# 定义函数A
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async def function_A(client, data):
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async def function_A(data):
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data = json.loads(data)
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username = data['username']
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device = data['device']
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@ -133,11 +135,10 @@ async def function_A(client, data):
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# 定义函数B
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async def function_B(client, data):
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async def function_B(data):
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data = json.loads(data)
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username = data['username']
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device = data['device']
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print(f"{client}的连接已断开")
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await stop(username, device)
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@ -178,31 +179,50 @@ class SceneManager:
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def add_user(self, user):
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# 上锁
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if user not in self.users:
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print("创建user" + user)
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self.users[user] = {"app": AppScene(user), "web": WebScene(user), "screen": ScreenScene(user)}
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def get_scene(self, user, scene_type):
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return self.users[user].get(scene_type)
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async def handler(websocket, path):
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async def on_connect(ws: WebSocket):
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await ws.send_text(json.dumps({"code": 201, "msg": "socket已连接，等待接收消息"}, ensure_ascii=False))
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async def on_disconnect(the_user_scene, user_app_scene, user_web_scene, user_screen_scene, message):
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if the_user_scene is not None:
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the_user_scene.turn_off()
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# 查看该用户的所有场景是否在线,只有都不在线就关闭推流
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if user_app_scene is not None and user_app_scene is not None and user_app_scene is not None:
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if user_app_scene.active is False and user_web_scene.active is False and user_screen_scene.active is False:
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print("关闭场景" + the_user_scene.name)
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await function_B(message)
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print("socket已关闭")
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@app.websocket("/")
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async def wsk(ws: WebSocket):
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the_user_scene = None
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user_app_scene = None
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user_web_scene = None
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user_screen_scene = None
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username = ""
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await ws.accept()
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await on_connect(ws)
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try:
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# 在循环中等待客户端的消息
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async for message in websocket:
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user_msg[websocket] = message
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while True:
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message = await ws.receive_text()
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await ws.send_text(json.dumps({"code": 202, "msg": "socket已收到消息，等待处理"}, ensure_ascii=False))
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user_msg[ws] = message
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data = json.loads(message)
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username = data['username']
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scene_name = data[SCENE_NAME]
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scene_manager.add_user(username)
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the_user_scene = scene_manager.get_scene(username, scene_name)
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if the_user_scene.active is True:
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await websocket.send(
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await ws.send_text(
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json.dumps({"code": 200,
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"msg": the_user_scene.user + "的" + the_user_scene.name + "该场景已经开启了，不要再请求我了！"},
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"msg": the_user_scene.user + "的" + the_user_scene.name + "该场景已经开启了，不要再请求我了,请等待一会！"},
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ensure_ascii=False))
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continue
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user_app_scene = scene_manager.get_scene(username, "app")
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@ -210,33 +230,19 @@ async def handler(websocket, path):
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user_screen_scene = scene_manager.get_scene(username, "screen")
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if user_app_scene.active is True or user_web_scene.active is True or user_screen_scene.active is True:
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the_user_scene.turn_on()
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await websocket.send(
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json.dumps({"code": 200, "msg": "该用户已经有其他场景开启了，不需要再推流了！"}, ensure_ascii=False))
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await ws.send_text(
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json.dumps({"code": 200, "msg": "该用户已经有其他场景开启了，请等待一会！不需要再推流了！"},
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ensure_ascii=False))
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continue
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# 如果该用户的场景没有开启，那么进行开启
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print(username + "开启场景" + the_user_scene.name)
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the_user_scene.turn_on()
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response = await function_A(websocket, message)
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response = await function_A(message)
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# 当接收到消息时调用函数A
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await websocket.send(response)
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# 没有消息了，则首先关闭该用户的场景
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if the_user_scene is not None:
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the_user_scene.turn_off()
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# 查看该用户的所有场景是否在线,只有都不在线就关闭推流
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if user_app_scene is not None and user_app_scene is not None and user_app_scene is not None:
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if user_app_scene.active is False and user_web_scene.active is False and user_screen_scene.active is False:
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print("关闭场景" + the_user_scene.name)
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await function_B(websocket, user_msg[websocket])
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await ws.send_text(response)
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except Exception as e:
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print("异常", e)
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# # 没有消息了，则首先关闭该用户的场景
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if the_user_scene is not None:
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the_user_scene.turn_off()
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# 查看该用户的所有场景是否在线,只有都不在线就关闭推流
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if user_app_scene is not None and user_app_scene is not None and user_app_scene is not None:
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if user_app_scene.active is False and user_web_scene.active is False and user_screen_scene.active is False:
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print("关闭场景" + the_user_scene.name)
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await function_B(websocket, user_msg[websocket])
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print(f"{username}的{the_user_scene.name}场景的连接已断开,异常消息或代码：{e}")
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await on_disconnect(the_user_scene, user_app_scene, user_web_scene, user_screen_scene, user_msg[ws])
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if __name__ == '__main__':
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broker = 'mqtt.lihaink.cn'
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@ -247,8 +253,4 @@ if __name__ == '__main__':
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user_msg = {}
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user_scene = []
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scene_manager = SceneManager()
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# 启动WebSocket服务器
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start_server = websockets.serve(handler, "0.0.0.0", 8765)
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asyncio.get_event_loop().run_until_complete(start_server)
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asyncio.get_event_loop().run_forever()
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uvicorn.run(app)
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