Python文件完整性监控

Question

我已经编写了以下代码，但无法使其正常工作，我不明白为什么。代码：

1. 读取目标文件列表
2. 在目录中循环
3. 对文件运行MD5哈希
4. 检查活动文件中所述文件以前的md5哈希
5. 如果文件是新的，则会将其记录为新的
6. 如果日志已存在但已更改，它将写入更改并记录更改
7. 如果不是新的，没有改变，那就什么都不做

这是代码：

import hashlib
import logging as log
import optparse
import os
import re
import sys
import glob
import shutil
def md5(fileName):
    """Compute md5 hash of the specified file"""
    try:
        fileHandle = open(fileName, "rb")
    except IOError:
        return
    m5Hash = hashlib.md5()
    while True:
        data = fileHandle.read(8192)
        if not data:
            break
        m5Hash.update(data)
    fileHandle.close()
    return m5Hash.hexdigest()
req = open("requested.txt")
for reqline in req:
    reqName = reqline[reqline.rfind('/') + 1:len(reqline) - 1]
    reqDir = reqline[0:reqline.rfind('/') + 1] 
    tempFile = open("activetemp.txt", 'w') 
    for name in glob.glob(reqDir + reqName):    
        fileHash = md5(name) 
        actInt = 0
        if fileHash != None:
            actFile = open("activefile.txt")
            for actLine in actFile:
                actNameDir = actLine[0:actLine.rfind(' : ')]
                actHash = actLine[actLine.rfind(' : ') + 3:len(actLine) -1]
                if actNameDir == name and actHash == fileHash:
                    tempFile.write(name + " : " + fileHash + "n")
                    actInt = 1 
                    print fileHash
                    print actHash
                    print name
                    print actNameDir
                if actNameDir == name and actHash != fileHash:
                    fimlog = open("fimlog.txt", 'a')
                    tempFile.write(name + " : " + actHash + "n")         
                    actInt = 1
                    fimlog.write("FIM Log: The file " + name +  " was modified: " + actHash + "n") 
            if actInt == 0: 
                fimlog = open("fimlog.txt", 'a')
                fimlog.write("FIM Log: The file " + name +  " was created: " + fileHash + "n")
                tempFile.write(name + " : " + fileHash + "n")                       
shutil.copyfile("activetemp.txt", "activefile.txt")

Answer 1

您从未真正描述过这个问题，但一个可能的罪魁祸首是您从未关闭tempFile（或其他文件），因此最后的文件复制可能会失败。