86 lines
2.0 KiB
Python
86 lines
2.0 KiB
Python
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import os
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import sys
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import json
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import socket
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import prot_codec as pc
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from log import myprint
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from log import log_init
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# 定义服务器和客户端
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# device:
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# server
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# client
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# proxy
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# 定义操作类型
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# option:
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# connect
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# disconnect
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# data
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# login
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# close
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# 这里是公共变量，所有tcp_target对象都可以访问
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# 只支持一对一连接
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_tcp_server=None
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_tcp_client=None
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class tcp_target(object):
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def __init__(self,tcp_handler:socket):
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self.handler=tcp_handler
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self.state="idle"
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def recv_handler(self,recv_data:bytearray):
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global _tcp_client
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global _tcp_server
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# 解包查看数据类型
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cmd,data=pc.decode(recv_data)
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myprint(cmd.decode('utf-8'))
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j=json.loads(cmd)
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if(j["device"]=="client"):
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if(j["option"]=="login"):
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# 登陆时保存客户端句柄，断开之前的句柄
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if(_tcp_client is not None):
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_tcp_client.close()
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_tcp_client=self.handler
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else:
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# 其他消息原样发送到服务器端
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if(_tcp_server is not None):
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_tcp_server.send(recv_data)
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if(j["device"]=="server"):
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if(j["option"]=="login"):
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# 登陆时保存客户端句柄，断开之前的句柄
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if(_tcp_server is not None):
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_tcp_server.close()
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_tcp_server=self.handler
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else:
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# 其他消息原样发送到客户端
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if(_tcp_client is not None):
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_tcp_client.send(recv_data)
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# 通知服务器和客户端断开连接
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# 这里只进行数据的收发处理，不执行端口的close操作
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def close(self):
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cmd={'device':'proxy','option':'close'}
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data=pc.encode(json.dumps(cmd).encode('utf-8'),b'default')
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# 这里有可能连接已经断开，无法发送
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if(_tcp_client is not None):
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try:
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_tcp_client.send(data)
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except Exception as e:
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myprint("target_close:",str(e))
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if(_tcp_server is not None):
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try:
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_tcp_server.send(data)
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except Exception as e:
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myprint("target_close:",str(e))
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