flask nginx gevent-wesocket chat rooms

websocket chat rooms

Tools flask gevent-websocket nginx python3 use

先来一段代码`在这里插入代码片
from flask import Flask, render_template
from geventwebsocket.websocket import WebSocket, WebSocketError
from geventwebsocket.handler import WebSocketHandler
from gevent.pywsgi import WSGIServer
from flask import request, redirect
from queue import Queue
from lib1 import get_key
import time
import json
import _ctypes

app = Flask(name)
user_socket_dict3 = {}
@app.route(’/ws/chat_room/<room_id>’)
def ws(room_id):
if not send_msg_queue_dict.get(room_id):
send_msg_queue_dict[room_id] = Queue()
user_socket=request.environ.get(“wsgi.websocket”)
if not user_socket:
return “请以WEBSOCKET方式连接”
user_agent = request.user_agent
remote_addr = request.remote_addr
key = get_key(str(user_agent)+str(remote_addr))
user_name = r.get(key)
user_socket_dict3[user_name] = user_socket
while True:
try:

        socket_list = []
        send_msg_queue = send_msg_queue_dict.get("room_id")
        cot = send_msg_queue.get()
        if not cot:
            continue
        msg = cot.get("msg")
        from_user = cot.get("from_user")
        room_id = cot.get("room_id")
        if room_id == "main":
            members = r.get("on_line_user")
        else:
            members = r.get(room_id)
        data = {"from_user": from_user, "contains": msg}
        for member in members:
            socket_list.append(user_socket_dict3.get(member))
        for socket_user in socket_list:
            socket_user.send(json.dumps(data))

        user_msg = json.loads(user_msg)
    except EnvironmentError as e:
        print(e)

if name == ‘main’:

http_serve=WSGIServer(("0.0.0.0",8070),app,handler_class=WebSocketHandler)
http_serve.serve_forever()

`
Nginx configuration
disposed /etc/nginx/nginx.conf
added at http tab
Map http_upgrade $ {$ connection_upgrade
default upgrade;
'' Close;
}
Add /ect/nginx/conf.d/*.conf the
location / ws {
the include uwsgi_params;
proxy_http_version 1.1; # this is the focus of this may not support the transfer of data format or an error occurs
proxy_pass http://127.0.0.1:8070;
proxy_set_header $ Host Host;
proxy_set_header the X-Forwarded-the For-$ proxy_add_x_forwarded_for;
proxy_set_header $ http_upgrade upgrade;
proxy_set_header Connection "upgrade";
}
then we configure nginx service starts flask services and access to the service is nginx
bug a lot like him to teach
### to commemorate my first blog technology