系统管理员通常从svn/git中检索代码,部署站点后通常首先会生成该站点所有文件的MD5值,如果上线后网站页面内容被篡改(如挂马)等,可以比对之前生成MD5值快速查找去那些文件被更改,为了使系统管理员第一时间发现,可结合crontab或nagios等工具。
程序测试如下:
- # python check_change.py
- Usage: python check_change.py update /home/wwwroot
- python check_change.py check /home/wwwroot
- # python check_change.py update /data/www #生成站点的md5值
- # echo ‘ ‘ > /data/www/sitemap.html #测试清空文件
- # rm -rf /data/www/sitemap.xml #测试删除文件
- # python check_change.py check /data/www #查找那些文件被篡改
- /data/www/sitemap.xml
- /data/www/sitemap.html
代码如下(check_change.py):
- #!/usr/bin/env python
- import os,sys,subprocess
- def update(path):
- f = open(file,’w’)
- for root,dirs,files in os.walk(path):
- for name in files:
- line = os.path.join(root, name)
- (stdin,stderr) = subprocess.Popen([‘md5sum’,line],stdout=subprocess.PIPE).communicate()
- f.write(stdin)
- f.close()
- def check(path):
- f = open(file,’r’)
- for line in f:
- check_ok = “””echo ‘%s’ | md5sum -c > /dev/null 2>&1″”” % line
- #print check_ok
- if not subprocess.call(check_ok, shell = True) == 0:
- abnormal = line.split()
- print abnormal[1]
- f.close()
- def Usage():
- print ”’
- Usage: python %s update /home/wwwroot
- python %s check /home/wwwroot
- ”’ % (sys.argv[0],sys.argv[0])
- sys.exit()
- if len(sys.argv) != 3:
- Usage()
- file = ‘file.key’
- model = sys.argv[1]
- path = sys.argv[2]
- if os.path.exists(path) == False:
- print “\033[;31mThe directory or file does not exist\033[0m”
- sys.exit()
- elif model == ‘update‘:
- update(path)
- elif model == ‘check’:
- check(path)
- else:
- Usage()
Fri Oct 25 11:02:44 CST 2013