FTP_server

import json
import os
import socketserver


class MyHandle(socketserver.BaseRequestHandler):

    def handle(self):
        while True:
            try:
                print("等待接受数据")
                self.data = self.request.recv(1024).strip()
                if not self.data:
                    print(self.client_address[0],"断开连接")
                    break
                cmd_dic = json.loads(self.data.decode())
                other = cmd_dic["other"]
                print("查找%s方法" % other)
                if hasattr(self,other):
                    fun = getattr(self,other)
                    fun(cmd_dic)
            except ConnectionResetError:
                print(self.client_address[0],"断开连接。。")
                break
    def put(self,*args):
        print("进入put")
        cmd_dic = args[0]
        filename = cmd_dic["filename"]
        file = None
        if os.path.isfile(filename):
            file = open(filename + ".new","wb")
        else:
            file = open(filename,"wb")
        filesize = cmd_dic["size"]
        read_size = 0
        self.request.send(b"1 reading")
        while read_size < filesize:
            data = self.request.recv(1024)
            read_size += len(data)
            file.write(data)
        else:
            print("接受完成")
            file.close()
#更新日期 2018.5.25 未完待续.....
    def get(self,*args):
        cmd_dic = args[0]
        filename = cmd_dic["filename"]
        isfile = self.SeekFile(filename)
        if isfile:
            filesize = os.stat(filename).st_size
            file = open(filename,"rb")
        else:
            filesize = -1
            print("不存在该文件")
        self.request.send( str(filesize).encode())
        if filesize != -1:
            self.request.recv(1024)
            for line in file:
                self.request.send(line)
            else:
                print("send flie done....")
                file.close()

    def SeekFile(self,filename):
        if os.path.isfile(filename):
            return True
        else: return False

if __name__ == "__main__":
    HOST,PORT = "localhost",9999
    server = socketserver.ThreadingTCPServer((HOST,PORT),MyHandle)
    server.serve_forever()