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：python snapper.py > todayCheck.csv
# Hello, this is a script written in Python. See http://www.pyhon.org # # Snapper 1.2p # # This script will walk a directory (and its subdirectories) and compute # SHA (Secure Hash Algorithm) for specific files (according to their # extensions) and ouput a CSV file (suited for loading into a spreadsheet # editor,a database or simply comparing with diff or ExamDiff.). # # You can redirect the output of this script to a file. # eg. python snapper.py > todayCheck.csv # # This script can be usefull to check system files tampering. # # This script is public domain. Feel free to reuse it. # The author is: # Sebastien SAUVAGE # <sebsauvage at sebsauvage dot net> # http://sebsauvage.net # # More quick & dirty scripts are available at http://sebsauvage.net/python/ # # Directory to scan and extensions are hardcoded below: 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'] import os,string,sha,stat,sys def snapper ( directoryStart , extensionList ) : os.path.walk( directoryStart, snapper_callback, extensionList ) def snapper_callback ( extensionList , directory, files ) : sys.stderr.write('Scanning '+directory+'n') for fileName in files: if os.path.isfile( os.path.join(directory,fileName) ) : if string.lower(os.path.splitext(fileName)[1]) in extensionList : filelist.append(fileSHA ( os.path.join(directory,fileName) )) def fileSHA ( filepath ) : sys.stderr.write(' Reading '+os.path.split(filepath)[1]+'n') file = open(filepath,'rb') digest = sha.new() data = file.read(65536) while len(data) != 0: digest.update(data) data = file.read(65536) file.close() return '"'+filepath+'",'+str(os.stat(filepath)[6])+',"'+digest.hexdigest()+'"' sys.stderr.write('Snapper 1.1p - http://sebsauvage.net/python/n') filelist = [] snapper( directoryStart , extensionList ) sys.stderr.write('Sorting...n') filelist.sort() filelist.insert(0, '"File path","File size","SHA"' ) sys.stderr.write('Printing...n') for line in filelist: print line sys.stderr.write('All done.n')
希望本文所述对大家的Python程序设计有所帮助。
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