使用 SocketServer 实现 FTP Server

[root@localhost ~]# cat ftp_server.py
#!/usr/bin/env python
#!-*- coding:utf-8 -*-

import threading
import SocketServer

class ThreadedTCPRequestHandler(SocketServer.BaseRequestHandler):
    def handle(self):
        while True:
            self.cmd = self.request.recv(1024).strip()
            self.cmd_list = self.cmd.split()
            if self.cmd_list:
                if self.cmd_list[0] == ‘get‘:
                    with open(self.cmd_list[1]) as fd:
                        while True:
                            self.data = fd.read(1024)
                            self.request.sendall(self.data)
                            if not self.data:
                                self.request.sendall(‘EOF‘)
                                break
            if not self.cmd: break

class ThreadedTCPServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
    pass

if __name__ == "__main__":
    HOST = ""
    PORT = 1234
    server = ThreadedTCPServer((HOST, PORT), ThreadedTCPRequestHandler)
    server_thread = threading.Thread(target=server.serve_forever)
    server_thread.daemon = True
    server_thread.start()
    print "Server loop running in thread:", server_thread.name
    server.serve_forever()

[root@localhost ~]# cat ftp_client.py
#!/usr/bin/env python
#!-*- coding:utf-8 -*-

import os
import tab
import time
import socket

HOST = ‘192.168.1.16‘  
PORT = 1234             
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
while True:
    cmd = raw_input("Please input cmd: ").strip()
    if cmd.lower()== ‘exit‘ or cmd.lower() == ‘quit‘:
        break
    cmd_list = cmd.split()
    if len(cmd_list) != 3:
        print "Ex: get file1 file2"
        continue
    else:
        s.sendall(cmd)
        if not os.path.exists(cmd_list[2]):
            dst_file = cmd_list[2]
        else:
            dst_file = cmd_list[2]+‘.new‘
        n = 1
        while True:
            data_rev = s.recv(1024)
            if data_rev.endswith(‘EOF‘):
                data = data_rev[:-3]
            else:
                data = data_rev
            if n == 1:
                with open(dst_file, ‘wb‘) as fd:
                    fd.write(data) 
                    print data
            else:
                with open(dst_file, ‘a‘) as fd:
                    fd.write(data)
                    print data
            n += 1
            if data_rev[-3:] == ‘EOF‘:
                print "destination file is %s" % dst_file
                break
s.close()