[Terry notes]python FTP

Here is the job, using Python to do an FTP, the main use of sockets.

Server side runs under Linux and can execute shell commands (static) on client side

You can download it by entering get XXX on the client side.

Enter put XXX on the client side to upload.

Server side:

1 ImportSocket2 Importsubprocess3 ImportOS4Server =Socket.socket (Socket.af_inet,socket. SOCK_STREAM)5Server.bind (("0.0.0.0", 8000))6Server.listen (5)7 Print("start to listen". Center (30,"-"))8 9  whileTrue:TenCONN,CLIENT_ADDR =server.accept () One     Print(CONN,CLIENT_ADDR) A      whileTrue: -         Try: -data = CONN.RECV (1024) the             Print("receive from client:", data) -             if(Data.decode ()). StartsWith ("Get"): -Data_cmd =Data.decode () -Data_cmd_list = Data_cmd.split (" ") +file_name = data_cmd_list[-1] - conn.send (str (os.path.getsize (file_name)). Encode ()) +f = open (file_name,"RB") AF_data =F.readlines () at                  forLineinchF_data: - Conn.send (line) -             elif(Data.decode ()). StartsWith ("put"): -Data_size = CONN.RECV (1024) -                 ifData_size.decode () = ="no file": -                     Continue in                 Print("The file ' s size is%sm"% round (int (Data_size.decode ())/1024/1024, 2)) -Data_list = (Data.decode ()). Split (" ") tofile_name = data_list[-1] +f = open (file_name,"WB") -Total_size =Int (Data_size.decode ()) theFile_size =0 *                  whileTrue: $DATA2 = CONN.RECV (1024)Panax Notoginseng f.write (data2) -File_size + =Len (data2) the                     ifFile_size = =total_size: +                          Break A f.close () the                 Print("File Upload done") +             Else: -Res_obj = subprocess. Popen (data,shell=true,stdout=subprocess. Pipe,stderr=subprocess. PIPE) $res =Res_obj.stdout.read () $ conn.send (str (RES)). Encode ()) -                 Print("--res Len:", Len (res)) - conn.send (RES) the         exceptConnectionreseterror as E: -             Print(CLIENT_ADDR," is break")Wuyi              Break the         exceptFilenotfounderror as E: -             Print("There is no such file!") WuConn.send (b"no file") -             Continue

Client side:

1 ImportSocket2 ImportOS3Client =Socket.socket ()4Client.connect (("192.168.168.128", 8000))5 #client.connect (("localhost", 8000))6 7  whileTrue:8     Try:9msg = input (">>>>>"). Strip ()Ten         ifLen (msg) = = 0:Continue One Client.send (Msg.encode ()) A         ifMsg.startswith ("Get"): -data = CLIENT.RECV (1024) -             ifData.decode () = ="no file": the                 Print("There is no such file!") -                 Continue -             Else: -                 Print("The file ' s size is%sm"% round (int (Data.decode ())/1024/1024,2)) +Msg_list = Msg.split (" ") -file_name = msg_list[-1] +f = open (file_name,"WB") ATotal_size =Int (Data.decode ()) atFile_size =0 -                  whileTrue: -DATA2 = CLIENT.RECV (1024) - f.write (data2) -File_size + =Len (data2) -                     ifFile_size = =total_size: in                          Break - f.close () to         elifMsg.startswith ("put"): +Msg_cmd_list = Msg.split (" ") -file_name = msg_cmd_list[-1] the client.send (str (os.path.getsize (file_name)). Encode ()) *f = open (file_name,"RB") $F_data =F.readlines ()Panax Notoginseng              forLineinchF_data: - Client.send (line) the         Else: +data = CLIENT.RECV (1024) A             Print("Client Receive:", Data.decode ()) theTotal_size =Int (Data.decode ()) +Received_size =0 -res = b"" $              whileReceived_size <total_size: $D = CLIENT.RECV (1024) -Res + =D -Received_size + =Len (d) the             Print("-----Receive done-----") -             Print(Res.decode ())Wuyi     exceptFilenotfounderror as E: the         Print("There is no such file!") -Client.send (b"no file") Wu         Continue

[Terry notes]python FTP