python asyncore跟踪客户端
作者:互联网
我正在编写一个简单的套接字服务器,并且想跟踪客户端状态(身份验证和内容).每次调用handle_read()时,我对该特定客户端一无所知.如果我知道客户端的ID或其他信息,这将有所帮助.这是我到目前为止的内容:
import asyncore
import socket
class EchoHandler(asyncore.dispatcher_with_send):
def handle_read(self):
data = self.recv(8192)
self.send(data)
class EchoServer(asyncore.dispatcher):
def __init__(self, host, port):
asyncore.dispatcher.__init__(self)
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.set_reuse_addr()
self.bind((host, port))
self.listen(5)
def handle_accept(self):
pair = self.accept()
if pair is None:
pass
else:
sock, addr = pair
print 'Incoming connection from %s' % repr(addr)
handler = EchoHandler(sock)
server = EchoServer('localhost', 8080)
asyncore.loop()
解决方法:
从repr(addr)接收连接时,您确实知道客户端的ID.返回的元组是该客户端的IP和唯一编号,可在您要将数据发送回该客户端时使用.如果要保留客户列表,则应考虑使用字典,该字典在接收传入连接时会存储该客户的信息.
如果您希望将这些信息传递给handle_read函数,则您的代码将如下所示:
class EchoHandler(asyncore.dispatcher_with_send):
def setAddr(self, addr):
self.addr = addr
def handle_read(self):
data = self.recv(8192)
print '%s from %s' % (data, self.addr)
self.send(data)
class EchoServer(asyncore.dispatcher):
def __init__(self, host, port):
asyncore.dispatcher.__init__(self)
self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
self.set_reuse_addr()
self.bind((host, port))
self.listen(5)
def handle_accept(self):
pair = self.accept()
if pair is None:
pass
else:
sock, addr = pair
print 'Incoming connection from %s' % repr(addr)
handler = EchoHandler(sock)
handler.setAddr(addr) #Set the address of the sender in the EchoHandler
只需将客户端的地址发送到EchoHandler,现在您知道它的来源.希望这可以帮助/工作!
标签:asyncore,python,sockets 来源: https://codeday.me/bug/20191009/1881510.html