修改一下,可以用来备份网站上的图片,数据库什么的。
- #!/usr/bin/python
- #coding=gbk
- '''
- ftp自动下载、自动上传脚本,可以递归目录操作
- '''
- from ftplib import FTP
- import os,sys,string,datetime,time
- import socket
- class MYFTP:
- def __init__(self, hostaddr, username, password, remotedir, port=21):
- self.hostaddr = hostaddr
- self.username = username
- self.password = password
- self.remotedir = remotedir
- self.port = port
- self.ftp = FTP()
- self.file_list = []
- # self.ftp.set_debuglevel(2)
- def __del__(self):
- self.ftp.close()
- # self.ftp.set_debuglevel(0)
- def login(self):
- ftp = self.ftp
- try:
- timeout = 60
- socket.setdefaulttimeout(timeout)
- ftp.set_pasv(True)
- print '开始连接到 %s' %(self.hostaddr)
- ftp.connect(self.hostaddr, self.port)
- print '成功连接到 %s' %(self.hostaddr)
- print '开始登录到 %s' %(self.hostaddr)
- ftp.login(self.username, self.password)
- print '成功登录到 %s' %(self.hostaddr)
- debug_print(ftp.getwelcome())
- except Exception:
- deal_error("连接或登录失败")
- try:
- ftp.cwd(self.remotedir)
- except(Exception):
- deal_error('切换目录失败')
- def is_same_size(self, localfile, remotefile):
- try:
- remotefile_size = self.ftp.size(remotefile)
- except:
- remotefile_size = -1
- try:
- localfile_size = os.path.getsize(localfile)
- except:
- localfile_size = -1
- debug_print('lo:%d re:%d' %(localfile_size, remotefile_size),)
- if remotefile_size == localfile_size:
- return 1
- else:
- return 0
- def download_file(self, localfile, remotefile):
- if self.is_same_size(localfile, remotefile):
- debug_print('%s 文件大小相同,无需下载' %localfile)
- return
- else:
- debug_print('>>>>>>>>>>>>下载文件 %s ... ...' %localfile)
- #return
- file_handler = open(localfile, 'wb')
- self.ftp.retrbinary('RETR %s'%(remotefile), file_handler.write)
- file_handler.close()
- def download_files(self, localdir='./', remotedir='./'):
- try:
- self.ftp.cwd(remotedir)
- except:
- debug_print('目录%s不存在,继续...' %remotedir)
- return
- if not os.path.isdir(localdir):
- os.makedirs(localdir)
- debug_print('切换至目录 %s' %self.ftp.pwd())
- self.file_list = []
- self.ftp.dir(self.get_file_list)
- remotenames = self.file_list
- #print(remotenames)
- #return
- for item in remotenames:
- filetype = item[0]
- filename = item[1]
- local = os.path.join(localdir, filename)
- if filetype == 'd':
- self.download_files(local, filename)
- elif filetype == '-':
- self.download_file(local, filename)
- self.ftp.cwd('..')
- debug_print('返回上层目录 %s' %self.ftp.pwd())
- def upload_file(self, localfile, remotefile):
- if not os.path.isfile(localfile):
- return
- if self.is_same_size(localfile, remotefile):
- debug_print('跳过[相等]: %s' %localfile)
- return
- file_handler = open(localfile, 'rb')
- self.ftp.storbinary('STOR %s' %remotefile, file_handler)
- file_handler.close()
- debug_print('已传送: %s' %localfile)
- def upload_files(self, localdir='./', remotedir = './'):
- if not os.path.isdir(localdir):
- return
- localnames = os.listdir(localdir)
- self.ftp.cwd(remotedir)
- for item in localnames:
- src = os.path.join(localdir, item)
- if os.path.isdir(src):
- try:
- self.ftp.mkd(item)
- except:
- debug_print('目录已存在 %s' %item)
- self.upload_files(src, item)
- else:
- self.upload_file(src, item)
- self.ftp.cwd('..')
- def get_file_list(self, line):
- ret_arr = []
- file_arr = self.get_filename(line)
- if file_arr[1] not in ['.', '..']:
- self.file_list.append(file_arr)
-
- def get_filename(self, line):
- pos = line.rfind(':')
- while(line[pos] != ' '):
- pos += 1
- while(line[pos] == ' '):
- pos += 1
- file_arr = [line[0], line[pos:]]
- return file_arr
- def debug_print(s):
- print (s)
- def deal_error(e):
- timenow = time.localtime()
- datenow = time.strftime('%Y-%m-%d', timenow)
- logstr = '%s 发生错误: %s' %(datenow, e)
- debug_print(logstr)
- file.write(logstr)
- sys.exit()
- if __name__ == '__main__':
- file = open("log.txt", "a")
- timenow = time.localtime()
- datenow = time.strftime('%Y-%m-%d', timenow)
- logstr = datenow
- # 配置如下变量
- hostaddr = 'localhost' # ftp地址
- username = 'test' # 用户名
- password = 'test' # 密码
- port = 21 # 端口号
- rootdir_local = '.' + os.sep + 'bak/' # 本地目录
- rootdir_remote = './' # 远程目录
-
- f = MYFTP(hostaddr, username, password, rootdir_remote, port)
- f.login()
- f.download_files(rootdir_local, rootdir_remote)
-
- timenow = time.localtime()
- datenow = time.strftime('%Y-%m-%d', timenow)
- logstr += " - %s 成功执行了备份\n" %datenow
- debug_print(logstr)
-
- file.write(logstr)
- file.close()
文章原链接:http://canlynet.iteye.com/blog/836996