Python使用ftplib实现简易FTP客户端的方法

#!/usr/bin/python
#-*- coding:utf-8 -*-
from ftplib import FTP #加载ftp模块
ftp=FTP() #设置变量
ftp.set_debuglevel(2) #打开调试级别2，显示详细信息
ftp.connect("IP","port") #连接的ftp sever和端口
ftp.login("user","password")#连接的用户名，密码
print ftp.getwelcome() #打印出欢迎信息
ftp.cmd("xxx/xxx") #更改远程目录
bufsize=1024 #设置的缓冲区大小
filename="filename.txt" #需要下载的文件
file_handle=open(filename,"wb").write
#以写模式在本地打开文件
ftp.retrbinaly("RETR filename.txt",file_handle,bufsize)
#接收服务器上文件并写入本地文件
ftp.set_debuglevel(0) #关闭调试模式
ftp.quit #退出ftp
ftp.dir() #显示目录下文件信息
ftp.mkd(pathname) #新建远程目录
ftp.pwd() #返回当前所在位置
ftp.rmd(dirname) #删除远程目录
ftp.delete(filename) #删除远程文件
ftp.rename(fromname, toname)#将fromname修改名称为toname。
ftp.storbinaly("STOR filename.txt",file_handel,bufsize) #上传目标文件

#coding:utf-8
from ctypes import *
import os
import sys
import ftplib
class myFtp:
ftp = ftplib.FTP()
bIsDir = False
path = ""
def __init__(self, host, port='21'):
self.ftp.set_debuglevel(2) #打开调试级别2，显示详细信息
#self.ftp.set_pasv(0) #0主动模式 1 #被动模式
self.ftp.connect( host, port )
def Login(self, user, passwd ):
self.ftp.login( user, passwd )
print self.ftp.welcome
def DownLoadFile( self, LocalFile, RemoteFile ):
file_handler = open( LocalFile, 'wb' )
self.ftp.retrbinary( "RETR %s" %( RemoteFile ), file_handler.write )
file_handler.close()
return True
def UpLoadFile( self, LocalFile, RemoteFile ):
if os.path.isfile( LocalFile ) == False:
return False
file_handler = open( LocalFile, "rb" )
self.ftp.storbinary( 'STOR %s'%RemoteFile, file_handler, 4096 )
file_handler.close()
return True
def UpLoadFileTree( self, LocalDir, RemoteDir ):
if os.path.isdir( LocalDir ) == False:
return False
LocalNames = os.listdir( LocalDir )
print RemoteDir
self.ftp.cwd( RemoteDir )
for Local in LocalNames:
src = os.path.join( LocalDir, Local)
if os.path.isdir( src ):
self.UpLoadFileTree( src, Local )
else:
self.UpLoadFile( src, Local )
self.ftp.cwd( ".." )
return
def DownLoadFileTree( self, LocalDir, RemoteDir ):
if os.path.isdir( LocalDir ) == False:
os.makedirs( LocalDir )
self.ftp.cwd( RemoteDir )
RemoteNames = self.ftp.nlst()
for file in RemoteNames:
Local = os.path.join( LocalDir, file )
if self.isDir( file ):
self.DownLoadFileTree( Local, file )
else:
self.DownLoadFile( Local, file )
self.ftp.cwd( ".." )
return
def show( self, list ):
result = list.lower().split( " " )
if self.path in result and "<dir>" in result:
self.bIsDir = True
def isDir( self, path ):
self.bIsDir = False
self.path = path
#this ues callback function ,that will change bIsDir value
self.ftp.retrlines( 'LIST', self.show )
return self.bIsDir
def close( self ):
self.ftp.quit()
ftp = myFtp('********')
ftp.Login('*****','*****')
#ftp.DownLoadFile('TEST.TXT', 'othersruntime.log')#ok
#ftp.UpLoadFile('runtime.log', 'othersruntime.log')#ok
#ftp.DownLoadFileTree('bcd', 'othersabc')#ok
#ftp.UpLoadFileTree('aaa',"others" )
ftp.close()
print "ok!"