Python WebSocket not working



我试图实现我的第一个websocket示例,但我无法实现它。

我使用python网络服务器:

import threading
import socket
def start_server():
    tick = 0
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.bind(('localhost', 1234))
    sock.listen(100)
    while True:
        print 'listening...'
        csock, address = sock.accept()
        tick+=1
        print 'connection!' 
        handshake(csock, tick)
        print 'handshaken'
        while True:
            interact(csock, tick)
            tick+=1

def send_data(client, str):
     #_write(request, 'x00' + message.encode('utf-8') + 'xff')
     str = 'x00' + str.encode('utf-8') + 'xff'
     return client.send(str)
def recv_data(client, count):
    data = client.recv(count)    
    return data.decode('utf-8', 'ignore')
def handshake(client, tick):
     our_handshake = "HTTP/1.1 101 Web Socket Protocol Handshakern"+"Upgrade:         WebSocketrn"+"Connection: Upgradern"+"WebSocket-Origin: http://localhost:8888rn"+"WebSocket-Location: "+" ws://localhost:1234/websessionrnrn"
     shake = recv_data(client, 255)
     print shake
     #We want to send this without any encoding
     client.send(our_handshake)
 def interact(client, tick):
     data = recv_data(client, 255)
     print 'got:%s' %(data)
     send_data(client, "clock ! tick%d" % (tick))
     send_data(client, "out ! %s" %(data))
 if __name__ == '__main__':
     start_server()

和HTML:

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
  <head>
    <title>Web Socket Example</title>
    <meta charset="UTF-8">
    <script>
      window.onload = function() {
        var s = new WebSocket("ws://localhost:1234/");
        s.onopen = function(e) { s.send('Ping'); }
        s.onmessage = function(e) { alert("got: " + e.data); }
        s.onclose = function(e) { alert("closed"); }
      };
    </script>
    </head>
    <body>
      <div id="holder" style="width:600px; height:300px"></div>
    </body>
 </html>

当我将浏览器指向http://localhost/websocket.html超容量2

我得到以下错误:

python websocketserver.py
listening...
connection!
GET / HTTP/1.1
Upgrade: websocket
Connection: Upgrade
Host: localhost:1234
Origin: http://localhost
Sec-WebSocket-Key: A4sVkUhjVlTZbJrp2NUrqg==
Sec-WebSocket-Version: 13

handshaken
got:
Traceback (most recent call last):
  File "websocketserver.py", line 43, in <module>
    start_server()
  File "websocketserver.py", line 17, in start_server
    interact(csock, tick)
  File "websocketserver.py", line 40, in interact
    send_data(client, "out ! %s" %(data))
  File "websocketserver.py", line 24, in send_data
    return client.send(str)
socket.error: [Errno 32] Broken pipe

有人能帮我修一下吗?

感谢

您使用较旧的Hixie 75协议进行响应,但客户端只使用较新的HyBi/IETF RFC 6455 WebSocket协议。

您对握手的响应应该更像这样(接受值是根据客户端的键值计算的):

HTTP/1.1 101 Switching Protocols
Upgrade: websocket
Connection: Upgrade
Sec-WebSocket-Accept: s3pPLMBiTxaQ9kYGzzhZRbK+xOo=

在HyBi/6455中,帧不再用\x00和\xxf分隔。相反,每个帧都有一个标头,其中包含多条数据,包括帧类型和有效载荷长度。

有关详细信息,请参见规范。或者更好的是,您可以参考和/或使用现有的python WebSocket实现,如pywebsocket、toronto,或者我自己的项目websocketify,它包含WebSocket.py,这是一个通用的WebSocket服务器库。

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