Detailed implementation of simple FTP

Job to show:

Develop a simple ftp:
1. User Login
2. Upload/download files
3. Different User home directories
4. View the files in the current directory
5. Full use of object-oriented knowledge

Redmae

 1 User Login 2 3 1, view user directory file 4 2, upload file, 5 3, download 6 4, Exit 7 8 Program Structure: 9 socket_server_client/#程序目录10 |--clients/#client程序主目录11 |      |---__init__.py12 |      |---bin/#启用目录13 |       |      |---__INIT__.PY14 |       |      |---socket_client.py# client Launch 15 |      |16 |      |---cfg/#配置文件目录17 |       |      |---__INIT__.PY18 |       |      |---config.py# configuration file 19 |      |20 |      |---core/#主要程序目录21 |       |      |---__INIT__.PY22 |       |      |---client_func.py# main function 23 |      |24 |      |---home/#客户端下载文件目录25 |26 | |--servers/#server程序主目录27 |      |---__init__.py28 |      |---bin/#启用目录29 |       |      |---__INIT__.PY30 |       |      |---registration.py# User Registration 31 |       |      |---socket_server.py# server start 32 33 |      |34 |      |---cfg/#配置文件目录35 |       |      |---__INIT__.PY36 |       |      |---config.py# configuration File 37 |      |38 |      |---core/#主要程序目录39 |       |      |---__INIT__.PY40 |       |      |---server_classc.py# main function 41 |      |42 | |---db/#用户上传文件主目录43 |              |---user_file/#用户上传目录44 | |---user_names# registered user File 45 |

Service side

servers/

bin/

registration.py

 1 #! Usr/bin/env Python 2 #-*-coding:utf-8-*-3 # Author Calmyan 4 Import socket,os,json,sys,pickle 5 6 Base_dir=os.path.dirna Me (Os.path.dirname (Os.path.abspath (__file__))) #获取相对路径转为绝对路径赋于变量 7 sys.path.append (Base_dir) #增加环境变量 8 from CFG Import Config 9 print (' User Registration '. Center (' = ') ' True:11 user_=input (' Please enter the user name you want to register: '). Strip () User_dir=os.path.join ( Config. User_dir,user_) #拼接用户目录路径13 if Os.path.isdir (user_dir): # Determine if a directory exists in print (' User already exists please re-lose! ')         Continue16 else:17 pwd_=input (' Please enter password: '). Strip () Pwd_two=input (' Please Confirm password: '). Strip (19)                 If Pwd_==pwd_two:20 try:21 os.mkdir (user_dir) #创建目录22 except Exception as e:23 Print (e) continue25 finally:26 file_dir=user_dir+ ' \\user ' #用户目录下 The user name file for the If not Os.path.isfile (config. User_file): with open (config. User_file, ' W ', encoding= ' Utf-8 ') as f:29 F.WRite (' {} ') with open (config.                 User_file, ' r+ ', encoding= ' Utf-8 ') as F:31 Data=eval (F.readline ()) data[user_]=pwd_33 F.seek (0) f.write (str (data)) print (' User [%s] registered successfully! ') %user_) + exit ()

View Code

socket_server.py

1 #! Usr/bin/env Python 2 #-*-coding:utf-8-*-3 # Author Calmyan 4 import socket,os,json 5 Import sys 6 Base_dir=os.path.dirnam E (Os.path.dirname (Os.path.abspath (__file__))) #获取相对路径转为绝对路径赋于变量 7 sys.path.append (base_dir) #增加环境变量 8  9 from  core.server_class Import listen_func10 s=socket.socket () #定义11 s.bind ((' localhost ', 9000)) #绑定要监听的 Port S.listen (5 ) #对列513 print (' Listening in ') Listen_func (s)

cfg/

config.py

1 #! Usr/bin/env Python 2 #-*-coding:utf-8-*-3 # Author Calmyan 4 import OS, sys 5 base_dir=os.path.dirname (os.path.dirname (OS . Path.abspath (__file__))) #获取相对路径转为绝对路径赋于变量 6 sys.path.append (base_dir) #增加环境变量 7  8  9 user_dir=base_dir+ ' \db \\user_file\\ ' #定义用户目录文件路径变量10 user_file=base_dir+ ' \db\\user_names ' #定义用户文件路径变量

View Code

Core/

server_class.py

  1 #! Usr/bin/env Python 2 #-*-coding:utf-8-*-3 # Author Calmyan 4 Import socket,os,json,sys,pickle 5 6 Base_dir=os.path. DirName (Os.path.dirname (Os.path.abspath (__file__))) #获取相对路径转为绝对路径赋于变量 7 sys.path.append (Base_dir) #增加环境变量 8 9 from CFG Import Config ten #用户名检测函数 def open_file_list (Name,pas): #传入当前类 with open (config. User_file, ' R ', encoding= ' Utf-8 ') as F:15 Data=eval (F.readline ()) + if name in data and Pas==data[name]: 1     7 return True else:19 return False #连接类 (socket_server): 24 "Connect Class" "File_path=config." user_dir# User Path variable-def __init__ (self,data,conn): #传入用户名, password is self.         Data=data self.conn=conn def show_process (self,lens): received_size=0# definition Size 33 current_percent=0# current size percent of received_size<lens:35 if Int ((received_size/lens) *100) >curr ent_percent:36 print (' # ', end= ', FLush=true) Notoginseng Current_percent=int ((received_size/lens) *100) New_size=yield Eceived_size+=new_size def ret_l (self): Ret=socket_server.login (self). data["Name"],self. data[' pwd '],self.conn) #用户名检测 return ret-def open_f (Self,ret): #打开目录 file_dir=os.path.join (sock et_server.file_path,ret[' data ' [' User ']) #用户目录 file_name=os.listdir (file_dir) #目录文件列表 f=file_dir+self. data[' filename ']# #上传的文件名 return file_dir,file_name,f# back to "Def Ls_file" (self,data): #查看文件 self . Conn.send (Json.dumps (data[1]). Encode ()) (Send_file): the "if Self". data[' filename '] in data[1]: f=data[0]+ '/' +self.             data[' filename '] File_obj=open (F, "RB") #打开文件 name=file_obj.name.split ('/') [-1] #文件名 59 Sez=os.path.getsize (f) #获取文件大小 print (SEZ) data_header={"actIon ": Put", "filename": Name, "size": SEZ 65} 66                 Self.conn.send (Json.dumps (Data_header). Encode ()) Send related information after #用json serialization in file_obj:68 Self.conn.send (line) #发送数据 the Elif self. data[' filename '].isdigit (): Num=int (self). data[' filename ']) #转为数字 try:73 f=data[0]+ '/' +data[1][num]# File_obj=open                  (F, "RB") #打开文件 name=file_obj.name.split ('/') [-1] #文件名 sez=os.path.getsize (f) #获取文件大小 77 Print (SEZ) data_header={"action": "Put", "Filena" Me ": Name, Bayi" size ": SEZ, Self.conn.send (Json.dumps (data_header). Enc                 Ode ()) #用json after serialization, send related information in file_obj:85 self.conn.send (line) 86 Self.conn.send (JSON.Dumps (f). Encode ()) #发送文件 except Exception as e:88 data={' filename ': False} 89 Self.conn.send (Json.dumps (data). Encode ()) else:91 data={' filename ': False} self.co Nn.send (data) encode ()) Json.dumps def put_file (self,data): #上传文件 94 File_obj=open (data[2], ' WB ') #打开新建 this file 9 5 rece_size=0# defines the file size value of #prten =socket_server.show_process (self. data["Size"]) #prten. __NEXT__ () 98 while rece_size<self.             data["Size"]: #小于接收的文件大小时, RECV_DATA=SELF.CONN.RECV (4096) file_obj.write (recv_data) #写入文件101 Rece_size+=len (Recv_data) #增加文件大小计算102 103 else:104 Print ("file [%s] received!" %self.     data["filename"]) File_obj.flush () 106 file_obj.close () #关闭文件107 108 109 @staticmethod110 def login (name,pas,conn): #用户检测 function 111 try:112 if Open_file_list (name,pas): 113 tag=true 114 error= ' "datas={' user ': name}116 data={' mag ': ' User authentication through ', ' tag ': true}117 Print (Json.dumps (data). Encode ()) 118 conn.send (Json.dumps (data). Encode ()) 119 Els             e:120 Raise Exception (' \033[41;1m user name or password error \033[0m '%name ' 121 except Exception as e:122             Tag=false123 Error=str (e) 124 datas= ' data={' mag ': ' User or password error ', ' tag ': false}126 Print (' Send data%s '%data) 127 conn.send ("Json.dumps") (Encode ()) "{' tag ': tag, ' ERROR ': Error, ' Data ':d atas}129 #监听函数131 def listen_func (s): true:133 conn,client_addr=s.accept () #端口监听中 ....  Returns two values, joins a numbered object, ip134 print (' Get to New connection: ', client_addr) 135 while true:136 data=conn.recv (4096) #接收数据 Instruction 137 print (' Received data: ', ' 138 data= json.loads (Data.decode ()) ') #反序列139 If Len data ==0:  break141           If data[' action ']== ' user ': #如果是用户名, Authenticate \142 serv=socket_server (data,conn) 143 ret =serv.ret_l () 144 if ret[' tag ']:145 pass146 else:147 continue148 14 9 Print (data) if data[' action ']== "put": #如果接收的字典中是put, is to receive 151 Serv=socket_serv                 ER (data,conn) serv.put_file (Serv.open_f (ret)) #调对象方法153 elif data[' action ']== ' get ': #下载154 Serv=socket_server (Data,conn) #实例化155 Serv.send_file (Serv.open_f (ret)) #调 method 156 E Lif data[' action ']== ' ls ': #查看157 serv=socket_server (Data,conn) 158 serv.ls_file (Serv.open_f ( RET)) 159 continue

View Code

Client

clients/

bin/

socket_client.py

  1 #! Usr/bin/env Python 2 #-*-coding:utf-8-*-3 # Author Calmyan 4 5 import Socket,os,json,sys 6 base_dir=os.path.dirname (Os.path.dirname (Os.path.abspath (__file__))) #获取相对路径转为绝对路径赋于变量 7 sys.path.append (Base_dir) #增加环境变量 8 from Core.client _func Import user_pwd 9 #from core.client_func import show_process from CFG import config one #进度条 def show_proc ESS (lens): received_size=0# definition Size current_percent=0# current size percentage of while received_size<lens:17 if Int ((received_size/lens) *100) >current_percent:18 print (' # ', end= ', flush=true) current_perce Nt=int ((received_size/lens) *100) New_size=yield received_size+=new_size Ket () client.connect (' localhost ', 9000), and true:27 data_d=user_pwd (client), if data_d[' tag ': #运行 # User Login Land success while true:30 print ("===== command prompt = = = 31 View catalog file: ls 32 download: Get file name or  File number such as: Get Test.txtor get 1 33 uploader: Put path/filename such as put E:/test.txt 34 exit: Exit ") cho=i             Nput (' instruction >>: '). Strip () Notoginseng if Len (cho) ==0:continue if cho== ' exit ': Exit () #退出指令 39                     Cmd_list=cho.split () If cmd_list[0]== ' put ': #如果等于下载指令 If Len (cmd_list) ==1:42                 Print (' No input related file name ') Continue filename=cmd_list[1] 45 If Os.path.isfile (filename): #如果文件存在 file_obj=open (filename, "RB") #打开文件 Name=f Ile_obj.name.split ('/') [-1] #文件名 #name =filename.split ("\ \") [-1] #文件名 SEZ=OS.PA                         Th.getsize (filename) #获取文件大小 data_header={"action": "Put", 52 "FileName": Name, "size": SEZ-Client . Send (Json.dumps (data_heAder). Encode ()) #用json serialized, send the relevant information in the "file [%s] send ...."%data_header["filename"]) 58                         file_obj:59 Client.send (line) else:61 Print ("file [%s] is sent!" %data_header["filename"]) else:63 print (' The file does not exist ') continue Elif cmd_list[0]== ' get ': #如查等 the upload instruction, if Len (cmd_list) ==1:67 print (' No                 Enter the relevant file name ') continue filename=cmd_list[1] 71 print (filename)                         data_header={"Action": "Get", "filename": filename, 74 "Size": "Client.send" (Json.dumps (Data_header). Encode () After #用json serialization, send related information about the 4096 (DATAS=CLIENT.RECV) #接收数据 instruction data_l= json.loads (datas.Decode ()) #反序列 if not data_l[' filename ': print (' File not present ') 81 Continue File_dir=config. user_dir+data_l["filename"] file_obj=open (File_dir, ' WB ') #打开新建 This file rece_size=0# definition file Size value of prten=show_process (data_l["size"]) prten.__next__ () e_size<data_l["Size"]: #小于接收的文件大小时, RECV_DATA=CLIENT.RECV (4096) FILE_OBJ.W                         Rite (Recv_data) #写入文件 Rece_size+=len (recv_data) #增加文件大小计算 try:92 Prten.send (Len (recv_data)) except stopiteration as e:94 print ( ' 100% ') else:97 print ("file [%s] received!" %data_l["filename"]) 98 File_obj.flush () File_obj.close () #关闭文件100 E Lif cmd_list[0]== ' ls ': #View Catalog Files 101 data_header={102 "action": "LS", 103 "filename": ' , 104 "Size": "}106 client.send (Json.dumps (data_header). Enc Ode ()) #用json after serialization, send related information 107 datas=client.recv (4096) #接收数据 Directive 108 data_l= json.loads (DATAS.D     Ecode ()) #反序列109 for k,v in Enumerate (data_l): Print (' number:%s file name:%s '% (K,V)) 111 112 else:113 print (data_d[' mag ')

View Code

cfg/

config.py

1 #! Usr/bin/env Python 2 #-*-coding:utf-8-*-3 # Author Calmyan 4  5 import OS, sys 6 base_dir=os.path.dirname (Os.path.dirn Ame (Os.path.abspath (__file__))) #获取相对路径转为绝对路径赋于变量 7 sys.path.append (base_dir) #增加环境变量 8  9 user_dir=base_dir+ ' \ Home\\ ' #定义用户目录文件路径变量

Core/

client_func.py

1 #!  Usr/bin/env Python 2 #-*-coding:utf-8-*-3 # Author Calmyan 4 Import socket,os,json,sys 5 #用户名登陆函数 6 def user_pwd (client): 7     user_=input (' Please enter user name: '). Strip () 8     pwd_=input (' Please enter password: '). Strip () 9     data_header={10                 "action": "User ", one                 " name ": user_,12                 " pwd ":p wd_13             }14     client.send (Json.dumps (Data_header). Encode ()) #用json serialized, Send related information     data=client.recv (4096) #接收数据 Directive     data_s=json.loads (Data.decode (' Utf-8 ')) #反序列17     return Data _S18 #进度条21 def show_process (lens):     received_size=0# definition size,     current_percent=0# current size percentage     received_size<lens:25         if Int ((received_size/lens) *100) >current_percent:26             print (' # ', end= ', Flush=true)             Current_percent=int ((received_size/lens) *100)         new_size=yield29         received_size+= New_size

View Code