145 lines
3.6 KiB
Python
145 lines
3.6 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 threading
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import time
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import prot_codec as pc
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# tcp 客户端脚本
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# 一个本地服务端
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# 一个远程客户端
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_LOCAL_PORT = 31234
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_remote_client=None
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_local_client=[]
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# 发送数据到指定ip地址和端口
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def send_to(ip,port,data:bytearray):
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for item in _local_client:
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if(item[1]==ip and item[2]==port):
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print(f"recv from remote {ip},{port}")
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item[0].send(data)
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return
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print(f"can not fond {ip},{port}")
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# 关闭指定地址的端口
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def close(ip,port):
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for item in _local_client:
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if(item[1]==ip and item[2]==port):
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item[0].close()
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break
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# 远端数据处理，解包，把负载数据发送到本地服务器
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def remote_client_handler(tcp_remote:socket):
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global _remote_client
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global _local_client
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print("已连接代理服务器")
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recv_data=bytearray()
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cmd={'device':'client','option':'login'}
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data=pc.encode(json.dumps(cmd).encode('utf-8'),b'default')
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_remote_client.send(data)
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while True:
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try:
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recv = tcp_remote.recv(4096)
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except Exception as e:
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print("remote:",str(e))
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break
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if recv:
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recv_data+=recv
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while True:
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start=recv_data.find(b'\xff')
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end=recv_data.find(b'\xfe')
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if(start==-1 or end==-1):
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break
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cmd,data=pc.decode(recv_data[start:end+1])
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print(cmd.decode('utf-8'))
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try:
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j=json.loads(cmd)
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if(j['device']=='server'):
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if(j['option']=='data'):
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send_to(j['ip'],j['port'],data)
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elif(j['option']=='disconnect'):
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close(j['ip'],j['port'])
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except Exception as e:
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print(str(e))
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recv_data=recv_data[end+1:]
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else:
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break
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tcp_remote.close()
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# 本地数据处理，解包，把负载数据发送到本地服务器
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def local_client_handler(tcp_server:socket,addr):
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global _remote_client
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global _local_client
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print("addr:",addr)
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addr_info=(tcp_server,addr[0],addr[1])
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_local_client.append(addr_info)
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if(_remote_client is not None):
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cmd={'device':'client','option':'connect','ip':addr[0],'port':addr[1]}
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data=pc.encode(json.dumps(cmd).encode('utf-8'),b'default')
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_remote_client.send(data)
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while True:
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try:
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recv = tcp_server.recv(4096)
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except Exception as e:
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print("local:",str(e))
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break
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if recv:
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cmd={'device':'client','option':'data','ip':addr[0],'port':addr[1]}
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data=pc.encode(json.dumps(cmd).encode('utf-8'),recv)
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if _remote_client is not None:
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_remote_client.send(data)
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print(f"send to remote {addr[0]},{addr[1]}")
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else:
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break
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tcp_server.close()
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if(_remote_client is not None):
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cmd={'device':'client','option':'disconnect','ip':addr[0],'port':addr[1]}
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data=pc.encode(json.dumps(cmd).encode('utf-8'),b'default')
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_remote_client.send(data)
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_local_client.remove(addr_info)
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def main():
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global _remote_client
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global _local_client
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_remote_client = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
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_remote_client.connect(("1.92.113.30",5345))
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thd = threading.Thread(target = remote_client_handler, args = (_remote_client,))
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thd.start()
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tcp_server = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
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tcp_server.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,True)
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tcp_server.bind(("",_LOCAL_PORT))
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print(f"开始监听({_LOCAL_PORT})")
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tcp_server.listen(128)
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while True:
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temp , temp_address = tcp_server.accept()
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thd = threading.Thread(target = local_client_handler, args = (temp,temp_address))
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thd.start()
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if __name__ == "__main__":
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main()
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