[英]How to create TCP proxy server with asyncio?
您可以將用戶文檔中 的TCP客戶端和服務器示例組合在一起。
然后,您需要使用這種幫助程序將流連接在一起:
async def pipe(reader, writer):
try:
while not reader.at_eof():
writer.write(await reader.read(2048))
finally:
writer.close()
這是一個可能的客戶端處理程序:
async def handle_client(local_reader, local_writer):
try:
remote_reader, remote_writer = await asyncio.open_connection(
'127.0.0.1', 8889)
pipe1 = pipe(local_reader, remote_writer)
pipe2 = pipe(remote_reader, local_writer)
await asyncio.gather(pipe1, pipe2)
finally:
local_writer.close()
和服務器代碼:
# Create the server
loop = asyncio.get_event_loop()
coro = asyncio.start_server(handle_client, '127.0.0.1', 8888)
server = loop.run_until_complete(coro)
# Serve requests until Ctrl+C is pressed
print('Serving on {}'.format(server.sockets[0].getsockname()))
try:
loop.run_forever()
except KeyboardInterrupt:
pass
# Close the server
server.close()
loop.run_until_complete(server.wait_closed())
loop.close()
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