python实现文件快照加密保护的方法
本文实例讲述了python实现文件快照加密保护的方法。分享给大家供大家参考。具体如下：
这段代码可以对指定的目录进行扫描，包含子目录，对指定扩展名的文件进行SHA-1加密后存储在cvs文件，以防止文件被篡改
调用方法：pythonsnapper.py>todayCheck.csv
#Hello,thisisascriptwritteninPython.Seehttp://www.pyhon.org
#
#Snapper1.2p
#
#Thisscriptwillwalkadirectory(anditssubdirectories)andcompute
#SHA(SecureHashAlgorithm)forspecificfiles(accordingtotheir
#extensions)andouputaCSVfile(suitedforloadingintoaspreadsheet
#editor,adatabaseorsimplycomparingwithdifforExamDiff.).
#
#Youcanredirecttheoutputofthisscripttoafile.
#eg.pythonsnapper.py>todayCheck.csv
#
#Thisscriptcanbeusefulltochecksystemfilestampering.
#
#Thisscriptispublicdomain.Feelfreetoreuseit.
#Theauthoris:
#SebastienSAUVAGE
#<sebsauvageatsebsauvagedotnet>
#http://sebsauvage.net
#
#Morequick&dirtyscriptsareavailableathttp://sebsauvage.net/python/
#
#Directorytoscanandextensionsarehardcodedbelow:
directoryStart=r'c:\windows'
extensionList=['.exe','.dll','.ini','.ocx','.cpl','.vxd','.drv','.vbx','.com','.bat','.src',
'.sys','.386','.acm','.ax','.bpl','.bin','.cab','.olb','.mpd','.pdr','.jar']
importos,string,sha,stat,sys
defsnapper(directoryStart,extensionList):
os.path.walk(directoryStart,snapper_callback,extensionList)
defsnapper_callback(extensionList,directory,files):
sys.stderr.write('Scanning'+directory+'\n')
forfileNameinfiles:
ifos.path.isfile(os.path.join(directory,fileName)):
ifstring.lower(os.path.splitext(fileName)[1])inextensionList:
filelist.append(fileSHA(os.path.join(directory,fileName)))
deffileSHA(filepath):
sys.stderr.write('Reading'+os.path.split(filepath)[1]+'\n')
file=open(filepath,'rb')
digest=sha.new()
data=file.read(65536)
whilelen(data)!=0:
digest.update(data)
data=file.read(65536)
file.close()
return'"'+filepath+'",'+str(os.stat(filepath)[6])+',"'+digest.hexdigest()+'"'
sys.stderr.write('Snapper1.1p-http://sebsauvage.net/python/\n')
filelist=[]
snapper(directoryStart,extensionList)
sys.stderr.write('Sorting...\n')
filelist.sort()
filelist.insert(0,'"Filepath","Filesize","SHA"')
sys.stderr.write('Printing...\n')
forlineinfilelist:
printline
sys.stderr.write('Alldone.\n')
希望本文所述对大家的Python程序设计有所帮助。