想写个定时备份文件的功能，这个功能需要实现：
1.搜索指定的目录里是否存在当天的文件
2.如果存在压缩并加密文件
3.通过ftp上传到备份服务器
4.在备份服务器上定时将文件拷贝到移动硬盘并定时清理文件
1.搜索指定目录
import glob
import os
import shutil class FileHelper:
def __init__(self, searchdir, searchstr):
self.dir = searchdir
self.searchstr = searchstr def get_sourcefile(self):
sourcepath = ("{searchdir}\*{searchstr}*".format(searchdir=self.dir, searchstr=self.searchstr))
return glob.glob(sourcepath) @staticmethod
def get_destfile(sourcefile, destdir):
tail = os.path.split(sourcefile)[1]
return os.path.join(destdir, tail[:tail.rfind('.')] + '.zip') @staticmethod
def get_shortfilename(sourcefile, destdir):
tail = os.path.split(sourcefile)[1]
return os.path.join(destdir, tail) @staticmethod
def copyfile(sourcefilename, destfilename):
shutil.copyfile(sourcefilename, destfilename) @staticmethod
def deletefile(filename):
os.remove(filename)
2.压缩文件
本来想通过Python自带的zipfile类来实现的，如下代码所示。
import zipfile
class Zip(object):
def __init__(self, sourcefilename, destfilename, password):
self.sourcefilename = sourcefilename
self.destfilename = destfilename
self.password = password
def zip(self):
azip = zipfile.ZipFile(self.destfilename, 'w')
azip.setpassword(self.password.encode('utf-8'))
azip.write(self.sourcefilename)
结果生成的压缩文件，不用密码都可以打开，查了Python的文档才知道zipFile.setpassword(pwd)
Set pwd as default password to extract encrypted files.
这个密码是用来解压文件时候用的，至于压缩文件的时候怎么设置密码，就不知道了。。。
所以退而求其次，用7zip的命令行方式了
import os
class Zip(object):
def __init__(self, sourcepath, destpath, password):
self.sourcepath = sourcepath
self.destpath = destpath
self.password = password
def zipfile(self):
pipe = os.popen("7z a -tzip {destpath} -p{password} {sourcepath}".format(destpath=self.destpath,
password=self.password,
sourcepath=self.sourcepath))
pipe.read()
pipe.close()
3.上传FTP
import ftplib
class FileUpaloder:
def __init__(self, host, username, password, localfile, remotefile):
self.host = host
self.username = username
self.password = password
self.localfile = localfile
self.remotefile = remotefile
def upload(self):
f = ftplib.FTP(self.host)
f.login(self.username, self.password)
bufsize = 1024
fp = open(self.localfile, 'rb')
f.storbinary('STOR ' + self.remotefile, fp, bufsize)
fp.close()
f.quit()
4.备份并定时清理文件
from filehelper import *
import datetime sourcepath = "C:\\source"
destpath = "C:\\source\\backup"
searchstr = "aa" FileHelper = FileHelper(sourcepath, searchstr)
sourcefilelist = FileHelper.get_sourcefile() # 备份文件
for filename in sourcefilelist:
destfilename = FileHelper.get_destfile(filename, destpath)
datestr = datetime.date.today().strftime("%Y_%m_%d")
if filename in datestr:
FileHelper.copyfile(filename, destfilename) # 删除文件
for filename in sourcefilelist:
datestr = filename[13:23]
filedate = datetime.datetime.strptime(datestr, "%Y_%m_%d")
checkDate = datetime.date.today() - datetime.timedelta(days=10)
if filedate <= checkDate:
FileHelper.deletefile(filename)