python检查目录文件权限并修改目录文件权限

# -*- coding: utf-8 -*-
# @author flynetcn
import sys, 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 = [];

def logger(level, str):
    logFd = open(LOG_FILE, 'a');
    logFd.write(datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S.%f')+": "+("WARNING " if level else "NOTICE ")+str);
    logFd.close();

def walktree(top, callback):
    for f in os.listdir(top):
        pathname = os.path.join(top, f);
        mode = os.stat(pathname).st_mode;
        if stat.S_ISDIR(mode):
            callback(pathname, True);
            walktree(pathname, callback);
        elif stat.S_ISREG(mode):
            callback(pathname, False);
        else:
            logger(1, "walktree skipping %s\n" % (pathname));

def collectPath(path, isDir=False):
    if isDir:
        dirs.append(path);
    else:
        files.append(path);


def checkNginxWritableDirs(paths):
    uid = pwd.getpwnam('nginx').pw_uid;
    gid = pwd.getpwnam('nginx').pw_gid;
    for d in paths:
        dstat = os.stat(d);
        if dstat.st_uid != uid:
            try:
                os.chown(d, uid, gid);
            except:
                logger(1, "chown(%s, nginx, nginx) failed\n" % (d));

def checkOtherReadableDirs(paths, isDir=False):
    for d in paths:
        dstat = os.stat(d);
        if isDir:
            checkMode = 5;
            willBeMode = dstat.st_mode | stat.S_IROTH | stat.S_IXOTH;
        else:
            checkMode = 4;
            willBeMode = dstat.st_mode | stat.S_IROTH;
        if int(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__":
    for d in nginxWritableDirs:
        walktree(d, collectPath)
    dirs = dirs + files;
    checkNginxWritableDirs(dirs);
    dirs = [];
    files = [];
    for d in otherReadableDirs:
        walktree(d, collectPath)
    checkOtherReadableDirs(dirs, True);
    checkOtherReadableDirs(files, False);