python--Websocket实现, 加密 sha1,base64

需要用到gevent-websocket包,这里我们用下图这个

ep1.py

from geventwebsocket.handler import WebSocketHandler
from gevent.pywsgi import WSGIServer
from geventwebsocket.websocket import WebSocket # 引这个模块为了注释中显示提示用

from flask import Flask, render_template,request

app = Flask(__name__)

@app.route('/my_app')
def my_app():

    return render_template('my_app.html')

@app.route('/my_ws')
def my_ws():
    print(request.environ)
    user_socket = request.environ.get('wsgi.websocket') # type:WebSocket

    while 1:
        msg = user_socket.receive()
        print(msg)
        user_socket.send(msg)

if __name__ == '__main__':
    # app.run()

    http_server = WSGIServer(('0.0.0.0',9527),app,handler_class=WebSocketHandler)
    http_server.serve_forever()

my_app.html

<body>
我即将是Websocket
</body>
<script>
    var ws = new WebSocket("ws://127.0.0.1:9527/my_ws")

    ws.onmessage = function (MessageEvent) {
        console.log(MessageEvent.data);
    }
</script>

request.environ:

{
    'GATEWAY_INTERFACE': 'CGI/1.1',
    'SERVER_SOFTWARE': 'gevent/1.4 Python/3.6',
    'SCRIPT_NAME': '',
    'wsgi.version': (1, 0),
    'wsgi.multithread': False,
    'wsgi.multiprocess': False,
    'wsgi.run_once': False,
    'wsgi.url_scheme': 'http',
    'wsgi.errors': < _io.TextIOWrapper name = '<stderr>'
    mode = 'w'
    encoding = 'UTF-8' > ,
    'SERVER_NAME': 'DESKTOP-3B0N8T7',
    'SERVER_PORT': '9527',
    'REQUEST_METHOD': 'GET',
    'PATH_INFO': '/my_ws',
    'QUERY_STRING': '',
    'SERVER_PROTOCOL': 'HTTP/1.1',
    'REMOTE_ADDR': '127.0.0.1',
    'REMOTE_PORT': '62130',
    'HTTP_HOST': '127.0.0.1:9527',
    'HTTP_CONNECTION': 'Upgrade',
    'HTTP_PRAGMA': 'no-cache',
    'HTTP_CACHE_CONTROL': 'no-cache',
    'HTTP_UPGRADE': 'websocket',
    'HTTP_ORIGIN': 'http://127.0.0.1:9527',
    'HTTP_SEC_WEBSOCKET_VERSION': '13',
    'HTTP_USER_AGENT': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/73.0.3683.103 Safari/537.36',
    'HTTP_ACCEPT_ENCODING': 'gzip, deflate, br',
    'HTTP_ACCEPT_LANGUAGE': 'zh-CN,zh;q=0.9',
    'HTTP_COOKIE': 'session=cd724228-79f3-4fee-af68-f923b5298ddf',
    'HTTP_SEC_WEBSOCKET_KEY': 'Sut5Yva++5oPh3yBO8nbXw==',
    'HTTP_SEC_WEBSOCKET_EXTENSIONS': 'permessage-deflate; client_max_window_bits',
    'wsgi.input': < gevent.pywsgi.Input object at 0x00000222A00988E8 > ,
    'wsgi.input_terminated': True,
    'wsgi.websocket_version': '13',
    'wsgi.websocket': < geventwebsocket.websocket.WebSocket object at 0x00000222A009F1E8 > ,
    'werkzeug.request': < Request 'http://127.0.0.1:9527/my_ws' [GET] >
}

python--Websocket实现, 加密 sha1,base64

二.使用websocket简单应用

1.简单实现聊天, (一对一单人聊天聊天)

import json

from geventwebsocket.handler import WebSocketHandler
from gevent.pywsgi import WSGIServer
from geventwebsocket.websocket import WebSocket
from geventwebsocket.exceptions import WebSocketError

from flask import Flask,render_template,request

app = Flask(__name__)

# user_socket_list = []
user_socket_dict = {}

@app.route("/my_app")
def my_app():
    print(request.environ)
    return render_template("my_app.html")

@app.route("/my_ws/<username>")
def my_ws(username):
    user_socket = request.environ.get("wsgi.websocket") # type:WebSocket
    user_socket_dict[username] = user_socket
    print(len(user_socket_dict),user_socket_dict)
    while 1:
        try:
            msg = user_socket.receive() # 阻塞等待消息数据
            print(msg,type(msg))
            msg_dict = json.loads(msg)
            # msg = {from_user:xxx,to_user:robert,messge:"hello"}
            to_user = msg_dict.get("to_user")
            to_user_socket = user_socket_dict.get(to_user)
            to_user_socket.send(msg)
            # user_socket_dict.get(msg.get(to_user) == "robert").send(msg)
        except WebSocketError:
            user_socket_dict.pop(username)
            return "good bye"






if __name__ == '__main__':
    # app.run()
    http_serv = WSGIServer(("0.0.0.0",9527),app,handler_class=WebSocketHandler)
    http_serv.serve_forever()

s1.py