[英]How do I enable TLS on an already connected Python asyncio stream?
[英]how do i switch between connected clients with asyncio sockets
我正在尝试制作一个套接字服务器,该服务器能够使用 asyncio sockets 连接多个客户端,并且能够轻松地在它通信的客户端之间切换,同时仍然连接所有客户端。 我以为会有某种类型的客户 FD,例如 sockets,但我查看了文档并没有找到任何东西,或者我错过了它。
这是我的服务器代码:
import socket
import asyncio
host = "localhost"
port = 9998
list_of_auths = ['desktop-llpeu0p\\tomiss', 'desktop-llpeu0p\\tomisss',
'desktop-llpeu0p\\tomissss', 'desktop-llpeu0p\\tomisssss']
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print('socket initiated.')
confirmed = 'CONFIRMED'
deny = 'denied'
#(so i dont forget) to get recv in async do: var = (await reader.read(4096)).decode('utf-8') if -1 then it will read all
#(so i dont forget) to write sendall do: writer.write(var.encode('utf-8')) should be used with await writer.drain()
async def handle_client(reader, writer):
idrecv = (await reader.read(255)).decode('utf-8')
if idrecv in list_of_auths:
writer.write(confirmed.encode('utf-8'))
else:
writer.write(deny.encode('utf-8'))
writer.close()
request = None
while request != 'quit':
print("second checkpoint")
writer.close()
async def run_server():
print("first checkpoint")
server = await asyncio.start_server(handle_client, host, port)
async with server:
await server.serve_forever()
asyncio.run(run_server())
此代码允许多个客户端一次连接; 但是,它只能让我与最后一个连接的人进行通信。
我建议像这样实现它:
class SocketHandler(asyncio.Protocol):
def __init__(self):
asyncio.Protocol.__init__(self)
self.transport = None
# your other code
def connection_made(self, transport):
""" incoming connection """
self.transport = transport
# your other code
def connection_lost(self, exception):
self.close()
# your other code
def data_received(self, data):
# your code handling incoming data
def close(self):
try:
self.transport.close()
except AttributeError:
pass
port = 5060
loop = asyncio.get_event_loop()
coro = loop.create_server(SocketHandler, '', port)
server = loop.run_until_complete(coro)
loop.run_forever()
这样,到服务器的每个连接都由SocketHandler
的一个实例表示。 每当您在此实例中处理一些数据时,您就知道它是哪个客户端连接。
您还可以通过将SocketHandler
的每个实例添加到全局列表ALL_CONNECTIONS = []
来维护连接列表:在SocketHandler.connection_made
执行ALL_CONNECTIONS.append(self)
。 如果需要,这将允许向所有连接的客户端发送消息。
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