python检查目录文件权限并修改目录文件权限的操作
我就废话不多说了,还是直接看代码吧!
#-*-coding:utf-8-*- #@authorflynetcn importsys,os,pwd,stat,datetime; LOG_FILE='/var/log/checkDirPermission.log'; nginxWritableDirs=[ '/var/log/nginx', '/usr/local/www/var', ]; otherReadableDirs=[ '/var/log/nginx', '/usr/local/www/var/log', ]; dirs=[]; files=[]; deflogger(level,str): logFd=open(LOG_FILE,'a'); logFd.write(datetime.datetime.now().strftime('%Y-%m-%d%H:%M:%S.%f')+":"+("WARNING"iflevelelse"NOTICE")+str); logFd.close(); defwalktree(top,callback): forfinos.listdir(top): pathname=os.path.join(top,f); mode=os.stat(pathname).st_mode; ifstat.S_ISDIR(mode): callback(pathname,True); walktree(pathname,callback); elifstat.S_ISREG(mode): callback(pathname,False); else: logger(1,"walktreeskipping%s\n"%(pathname)); defcollectPath(path,isDir=False): ifisDir: dirs.append(path); else: files.append(path); defcheckNginxWritableDirs(paths): uid=pwd.getpwnam('nginx').pw_uid; gid=pwd.getpwnam('nginx').pw_gid; fordinpaths: dstat=os.stat(d); ifdstat.st_uid!=uid: try: os.chown(d,uid,gid); except: logger(1,"chown(%s,nginx,nginx)failed\n"%(d)); defcheckOtherReadableDirs(paths,isDir=False): fordinpaths: dstat=os.stat(d); ifisDir: checkMode=5; willBeMode=dstat.st_mode|stat.S_IROTH|stat.S_IXOTH; else: checkMode=4; willBeMode=dstat.st_mode|stat.S_IROTH; ifint(oct(dstat.st_mode)[-1:])&checkMode!=checkMode: try: os.chmod(d,willBeMode); except: logger(1,"chmod(%s,%d)failed\n"%(d,oct(willBeMode))); if__name__=="__main__": fordinnginxWritableDirs: walktree(d,collectPath) dirs=dirs+files; checkNginxWritableDirs(dirs); dirs=[]; files=[]; fordinotherReadableDirs: walktree(d,collectPath) checkOtherReadableDirs(dirs,True); checkOtherReadableDirs(files,False);
补充知识:Python中获取某个用户对某个文件或目录的访问权限
在Python中我们通常可以使用os.access()函数来获取当前用户对某个文件或目录是否有某种权限,但是要获取某个用户对某个文件或目录是否有某种权限python中没有很好的方法直接获取,因此我写了个函数使用stat和pwd模块来实现这一功能。
#!/usr/bin/envpython #-*-coding:utf-8-*- importos importpwd importstat defis_readable(path,user): user_info=pwd.getpwnam(user) uid=user_info.pw_uid gid=user_info.pw_gid s=os.stat(path) mode=s[stat.ST_MODE] return( ((s[stat.ST_UID]==uid)and(mode&stat.S_IRUSR>0))or ((s[stat.ST_GID]==gid)and(mode&stat.S_IRGRP>0))or (mode&stat.S_IROTH>0) ) defis_writable(path,user): user_info=pwd.getpwnam(user) uid=user_info.pw_uid gid=user_info.pw_gid s=os.stat(path) mode=s[stat.ST_MODE] return( ((s[stat.ST_UID]==uid)and(mode&stat.S_IWUSR>0))or ((s[stat.ST_GID]==gid)and(mode&stat.S_IWGRP>0))or (mode&stat.S_IWOTH>0) ) defis_executable(path,user): user_info=pwd.getpwnam(user) uid=user_info.pw_uid gid=user_info.pw_gid s=os.stat(path) mode=s[stat.ST_MODE] return( ((s[stat.ST_UID]==uid)and(mode&stat.S_IXUSR>0))or ((s[stat.ST_GID]==gid)and(mode&stat.S_IXGRP>0))or (mode&stat.S_IXOTH>0) )
使用方法
printis_readable('/home',root) printis_writable('/home',root) printis_executable('/home',root) printis_readable('/tmp',admin) printis_writable('/tmp',admin) printis_executable('/tmp',admin)
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