Python上的多线程websocket服务器

Python上的多线程websocket服务器,python,multithreading,websocket,Python,Multithreading,Websocket,请帮助我改进此代码: import base64 import hashlib import threading import socket class WebSocketServer: def __init__(self, host, port, limit, **kwargs): """ Initialize websocket server. :param host: Host name as IP address or tex

请帮助我改进此代码:

import base64
import hashlib
import threading
import socket



class WebSocketServer:
    def __init__(self, host, port, limit, **kwargs):
        """
        Initialize websocket server.
        :param host: Host name as IP address or text definition.
        :param port: Port number, which server will listen.
        :param limit: Limit of connections in queue.
        :param kwargs: A dict of key/value pairs. It MAY contains:<br>
        <b>onconnect</b> - function, called after client connected.
        <b>handshake</b> - string, containing the handshake pattern.
        <b>magic</b> - string, containing "magic" key, required for "handshake".
        :type host: str
        :type port: int
        :type limit: int
        :type kwargs: dict
        """
        self.host = host
        self.port = port
        self.limit = limit
        self.running = False
        self.clients = []
        self.args = kwargs


    def start(self):
        """
        Start websocket server.
        """
        self.root = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.root.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.root.bind((self.host, self.port))
        self.root.listen(self.limit)
        self.running = True

        while self.running:
            client, address = self.root.accept()
            if not self.running: break

            self.handshake(client)
            self.clients.append((client, address))

            onconnect = self.args.get("onconnect")
            if callable(onconnect): onconnect(self, client, address)

            threading.Thread(target=self.loop, args=(client, address)).start()

        self.root.close()



    def stop(self):
        """
        Stop websocket server.
        """
        self.running = False



    def handshake(self, client):
        handshake = 'HTTP/1.1 101 Switching Protocols\r\nConnection: Upgrade\r\nUpgrade: websocket\r\nSec-WebSocket-Accept: %s\r\n\r\n'
        handshake = self.args.get('handshake', handshake)
        magic = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
        magic = self.args.get('magic', magic)

        header = str(client.recv(1000))
        try:
            res = header.index("Sec-WebSocket-Key")
        except ValueError:
            return False
        key = header[res + 19: res + 19 + 24]
        key += magic
        key = hashlib.sha1(key.encode())
        key = base64.b64encode(key.digest())

        client.send(bytes((handshake % str(key,'utf-8')), 'utf-8'))
        return True



    def loop(self, client, address):
        """
        :type client: socket
        """
        while True:
            message = ''
            m = client.recv(1)
            while m != '':
                message += m
                m = client.recv(1)

            fin, text = self.decodeFrame(message)

            if not fin:
                onmessage = self.args.get('onmessage')
                if callable(onmessage): onmessage(self, client, text)
            else:
                self.clients.remove((client, address))
                ondisconnect = self.args.get('ondisconnect')
                if callable(ondisconnect): ondisconnect(self, client, address)
                client.close()
                break




    def decodeFrame(self, data):
        if (len(data) == 0) or (data is None):
            return True, None
        fin = not(data[0] & 1)
        if fin:
            return fin, None

        masked = not(data[1] & 1)
        plen = data[1] - (128 if masked else 0)

        mask_start = 2
        if plen == 126:
            mask_start = 4
            plen = int.from_bytes(data[2:4], byteorder='sys.byteorder')
        elif plen == 127:
            mask_start = 10
            plen = int.from_bytes(data[2:10], byteorder='sys.byteorder')

        mask = data[mask_start:mask_start+4]
        data = data[mask_start+4:mask_start+4+plen]

        decoded = []
        i = 0
        while i < len(data):
            decoded.append(data[i] ^ mask[i%4])
            i+=1

        text = str(bytearray(decoded), "utf-8")
        return fin, text



    def sendto(self, client, data, **kwargs):
        """
        Send <b>data</b> to <b>client</b>. <b>data</b> can be of type <i>str</i>, <i>bytes</i>, <i>bytearray</i>, <i>int</i>.
        :param client: Client socket for data exchange.
        :param data: Data, which will be sent to the client via <i>socket</i>.
        :type client: socket
        :type data: str|bytes|bytearray|int|float
        """
        if type(data) == bytes or type(data) == bytearray:
            frame = data
        elif type(data) == str:
            frame = bytes(data, kwargs.get('encoding', 'utf-8'))
        elif type(data) == int or type(data) == float:
            frame = bytes(str(data), kwargs.get('encoding', 'utf-8'))
        else:
            return None

        framelen = len(frame)
        head = bytes([0x81])

        if framelen < 126:
            head += bytes(int.to_bytes(framelen, 1, 'big'))
        elif 126 <= framelen < 0x10000:
            head += bytes(126)
            head += bytes(int.to_bytes(framelen, 2, 'big'))
        else:
            head += bytes(127)
            head += bytes(int.to_bytes(framelen, 8, 'big'))
        client.send(head + frame)
导入base64
导入hashlib
导入线程
导入套接字
类WebSocketServer:
定义初始化(自身、主机、端口、限制,**kwargs):
"""
初始化websocket服务器。
:param host:主机名作为IP地址或文本定义。
:param port:端口号,哪个服务器将侦听。
:param limit:队列中连接的限制。
:param kwargs:键/值对的dict。它可能包含:
onconnect—函数,在客户端连接后调用。 握手-字符串,包含握手模式。 魔术-字符串,包含“魔术”键,“握手”所需。 :类型主机:str :类型端口:int :类型限制:int :类型kwargs:dict """ self.host=host self.port=端口 self.limit=限制 self.running=False self.clients=[] self.args=kwargs def启动(自): """ 启动websocket服务器。 """ self.root=socket.socket(socket.AF\u INET,socket.SOCK\u STREAM) self.root.setsockopt(socket.SOL\u socket,socket.SO\u REUSEADDR,1) self.root.bind((self.host,self.port)) self.root.listen(self.limit) self.running=True 自运行时: 客户端,地址=self.root.accept() 如果不是自动运行:中断 自我握手(客户端) self.clients.append((客户机,地址)) onconnect=self.args.get(“onconnect”) 如果可调用(onconnect):onconnect(self、client、address) threading.Thread(target=self.loop,args=(客户机,地址)).start() self.root.close() def停止(自): """ 停止websocket服务器。 """ self.running=False def握手(自我、客户端): 握手='HTTP/1.1 101交换协议\r\n连接:升级\r\n升级:websocket\r\nSec websocket接受:%s\r\n\r\n' handshake=self.args.get('handshake',handshake) magic=“258EAFA5-E914-47DA-95CA-C5AB0DC85B11” magic=self.args.get('magic',magic) header=str(client.recv(1000)) 尝试: res=标题索引(“Sec WebSocket键”) 除值错误外: 返回错误 key=标题[res+19:res+19+24] 钥匙+=魔术 key=hashlib.sha1(key.encode()) key=base64.b64编码(key.digest()) 发送(字节((握手%str(键,'utf-8')),'utf-8')) 返回真值 def循环(自身、客户端、地址): """ :类型客户端:套接字 """ 尽管如此: 消息=“” m=客户端.recv(1) 而m!='': 消息+=m m=客户端.recv(1) fin,text=self.decodeFrame(消息) 如果不是fin: onmessage=self.args.get('onmessage') 如果可调用(onmessage):onmessage(self、client、text) 其他: self.clients.remove((客户端,地址)) ondisconnect=self.args.get('ondisconnect') 如果可调用(ondisconnect):ondisconnect(self、client、address) client.close() 打破 def解码帧(自身,数据): 如果(len(data)==0)或(data为无): 返回True,无 fin=not(数据[0]&1) 如果是fin: 返回鳍,无 屏蔽=未屏蔽(数据[1]&1) plen=数据[1]-(如果屏蔽,则为128,否则为0) 掩码_开始=2 如果plen==126: 掩码_开始=4 plen=int.from_字节(数据[2:4],byteorder='sys.byteorder') elif plen==127: 掩码_开始=10 plen=int.from_字节(数据[2:10],byteorder='sys.byteorder') 掩码=数据[掩码开始:掩码开始+4] 数据=数据[屏蔽启动+4:屏蔽启动+4+plen] 解码=[] i=0 而i 所以你的代码不起作用。您可以使用而不是线程(不在Windows*上),或者如果您希望同时支持多个客户端,则可以使用

如果选择多处理,请尝试以下操作:

client.py:

import socket

def main():
    s = socket.socket()
    s.connect(("localhost", 5555))

    while True:
        data = raw_input("> ")
        s.send(data)

        if data == "quit":
            break

    s.close()

if __name__ == "__main__":
    main()
server.py:

from multiprocessing import Process
from os import getpid

import socket

def receive(conn):
    print "(%d) connected." % getpid()
    while True:
        data = conn.recv(1024)
        if data:
            if data == "quit":
                break
            else:
                print "(%s) data" % getpid()

def main():
    s = socket.socket()
    s.bind(("localhost", 5555))
    s.listen(1)

    while True:
        conn, address = s.accept()
        print "%s:%d connected." % address
        Process(target=receive, args=(conn,)).start()

    s.close()

if __name__ == "__main__":
    main()
*在Windows上,此代码将在酸洗套接字时引发错误:

  File "C:\Python27\lib\pickle.py", line 880, in load_eof
    raise EOFError

可能是一个问题。你需要子处理,而不是线程。你能发送或编写一个例子吗?我认为算法是:创建子进程,在每个进程中执行启动方法的代码。但我不明白,如何在进程之间正确地发送数据。是的,我可以写一个例子,但不,我不会。正如您已经了解到的,不同进程之间的通信并不容易,坦率地说,它是复杂的,但是python中有一些模块可以帮助缓解多进程()带来的痛苦