Implementing the FTP Service feature instance (client) using Python3

Source: Internet
Author: User
Tags ftp client
This article is mainly for you to introduce the PYTHON3 implementation of the FTP service function, the corresponding code of the client, with a certain reference value, interested in small partners can refer to

Client main code:


#Author by Andy#_*_ coding:utf-8 _*_ "This program was used to create a FTP client ' import Socket,os,json,time,hashlib,sy Sclass ftp_client (object): Def init (self): Self.client = Socket.socket () def: msg = "Useage:ls pwd CD D IR (example:/.../var) put filename rm filename get filename mkdir directory name ' Print (MSG) def connect (self, Addr,port): Self.client.connect ((addr,port)) def auth (self): M = hashlib.md5 () Username = input ("Please enter user name:"). Strip () m.u    Pdate (Input ("Please enter password:"). Strip (). Encode ()) password = m.hexdigest () User_info = {' action ': ' auth ', ' username ': username, ' Password ':p assword} self.client.send (Json.dumps (User_info). Encode (' Utf-8 ')) Server_response = Self.client.recv ( Decode () # print (Server_response) return server_response def Interactive (self): while true:msg = input ("&GT;&G T;>: "). Strip () If not msg:print (" Cannot send empty content! "). ") Continue cmd = Msg.split () [0] if hasattr (self,cmd): func = GetAttr (self,cmd) func (msg) Else:self.help () Continue def put (Self,*args): Cmd_split = Args[0].split () If Len (cmd_split) > 1:filena me = cmd_split[1] if os.path.isfile (filename): filesize = os.stat (filename). st_size File_info = {"Action": "Pu T "," filename ": filename," size ": FileSize," overriding ": ' True '} self.client.send (Json.dumps (file_info).    Encode (' Utf-8 ')) #防止粘包, wait for the server to confirm.    Request_code = {' $ ': ' Ready to recceive data! ', ' data! ': ' Isn't ready to received ' } Server_response = Self.client.recv (1024x768). Decode () if server_response = = ' $ ': F = open (filename, "RB") Sen D_size = 0 start_time = time.time () for line on F:self.client.send (line) Send_size + = len (line) se nd_percentage = Int ((send_size/filesize) * +) while true:progress = (' \ r uploaded%smb (%s%%) '% (round (send_size /102400, 2), send_percentage). Encode (' Utf-8 ') os.write (1, Progress) Sys.stdout.flush () TIME.SL EEP (0.00Else:end_time = Time.time () time_use = Int (end_time-start_time) print ("\nfile%s has      Been sent successfully! "% filename" print (' \ n average download speed%s MB/s)% (round (round (send_size/102400, 2)/Time_use, 2)))     F.close () else:print ("Sever isn ' t ready to receive data!") Time.sleep (Ten) start_time = Time.time () f = open (filename, "RB") Send_size = 0 for line in F:SELF.C Lient.send (line) Send_size + = Len (line) # Print (send_size) while true:send_percentage = Int (sen         d_size/filesize) * progress = (' \ R ' uploaded%smb (%s%%) '% (round (send_size/102400, 2), send_percentage)). Encode (       ' Utf-8 ') os.write (1, Progress) Sys.stdout.flush () # time.sleep (0.0001) Break else:  End_time = Time.time () time_use = Int (end_time-start_time) print ("File%s has been sent successfully!"% FileName) print (' \ n average download speed%s MB/s "% (round (round (send_size/102(2)/Time_use, 2)) F.close () else:print ("File%s is not exit!"%filename) else:self.help () def LS (sel F,*args): Cmd_split = Args[0].split () # Print (cmd_split) If Len (cmd_split) > 1:path = cmd_split[1] elif len (cmd_  Split) = = 1:path = '. ' Request_info = {' action ': ' ls ', ' Path ': path} self.client.send (Json.dumps (Request_info). Encode (' Utf-8 ')) sever_re Sponse = Self.client.recv (1024x768). Decode () print (sever_response) def pwd (Self,*args): Cmd_split = Args[0].split () If Len (   cmd_split) = = 1:request_info = {' action ': ' pwd ',} self.client.send (Json.dumps (Request_info). Encode ("Utf-8")) Server_response = Self.client.recv (1024x768). Decode () print (Server_response) else:self.help () def get (Self,*args): cmd _split = Args[0].split () If Len (cmd_split) > 1:filename = cmd_split[1] File_info = {"Action": "Get", "fi Lename ": filename," overriding ": ' True '} self.client.send (Json.dumps (File_info). Encode (' Utf-8 ')) server_resPonse = Self.client.recv (1024x768). Decode () #服务器反馈文件是否存在 self.client.send (' 0 '. Encode (' Utf-8 ')) if server_response = = ' 0 ': file_size = Int (SELF.CLIENT.RECV (1024x768). Decode ()) # Print (file_size) self.client.send (' 0 '. Encode (' Utf-8 ')) #确认开始传输 Data if Os.path.isfile (filename): filename = filename+ '. New ' F = open (filename, ' wb ') receive_size = 0 m = ha  SHLIB.MD5 () start_time = Time.time () while receive_size < file_size:if file_size-receive_size > 1024: # You also need to receive more than 1 times size = Else:size = File_size-receive_size data = self.client.recv (size) m.update (d  ATA) Receive_size + = len (data) Data_percent=int ((receive_size/file_size) * +) F.write (data) Progress = (' \ R '%smb (%s%%) '% (round (receive_size/102400,2), data_percent)). Encode (' Utf-8 ') os.write (1,progress) sys.stdout. Flush () time.sleep (0.0001) else:end_time = Time.time () time_use = Int (end_time-start_time) print (' \ n Average download speed%s MB/s '% (round (ROund (receive_size/102400,2)/time_use,2)) Md5_server = Self.client.recv (1024x768). Decode () Md5_client = M.hexdigest () Print (' File check, please wait ... ') time.sleep (0.3) if md5_server = = Md5_client:print (' File OK. ') else:print (' The file does not match the server MD5 value, please confirm!    ') else:print (' File not found! ') Client.interactive () else:self.help () def RM (Self,*args): Cmd_split = Args[0].split () If Len (cmd_split) > 1:fi Lename = cmd_split[1] Request_info = {' action ': ' RM ', ' filename ': filename, ' prompt ': ' Y '} self.client.send (Json.dumps (Request_info). Encode ("Utf-8")) Server_response = Self.client.recv (10240). Decode () Request_code = {' 0 ': ' Confirm to deleted ', ' 1 ': ' Cancel to deleted ' If server_response = = ' 0 ': Confirm = input ("Please confirm that the file is really deleted:") I    f confirm = = ' Y ' or confirm = = ' Y ': self.client.send (' 0 '. Encode ("Utf-8")) Print (SELF.CLIENT.RECV (1024x768). Decode ()) Else:self.client.send (' 1 '. Encode ("Utf-8")) Print (SELF.CLIENT.RECV (1024x768). Decode()) Else:print (' File not found! ') Client.interactive () else:self.help () def CD (Self,*args): Cmd_split = Args[0].split () If Len (cmd_split) > 1:pa  th = cmd_split[1] elif len (cmd_split) = = 1:path = '. ' Request_info = {' Action ': ' CD ', ' Path ':p ath} self.client.send (Json.dumps (Request_info). Encode ("Utf-8") server_res Ponse = Self.client.recv (10240). Decode () print (server_response) def mkdir (Self,*args): Request_code = {' 0 ': ' Director  Y have been made! ', ' 1 ': ' Directory is aleady exist! ' } Cmd_split = Args[0].split () If Len (cmd_split) > 1:dir_name = cmd_split[1] Request_info = {' action ': ' mkdir ' , ' Dir_name ': Dir_name} self.client.send (Json.dumps (Request_info). Encode ("Utf-8")) Server_response = Self.client   . recv (1024x768). Decode () if server_response = = ' 0 ': print (' Directory has been made! ')  Else:print (' Directory is aleady exist! ') Else:self.help () # def Touch (Self,*args):d EF Run (): client = Ftp_client () # Client.connect (' 10.1.2.3 ', 6969) Addr = input ("Enter server IP:"). Strip () port = Int (Input ("Enter port number:"). Strip ()) Client.connect (Addr,port) while True:if Client.auth () = = ' 0 ': print ("Welcome ...") client.interactive () Break Else:print ("Username or password Error! ") Continue

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