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102 lines
3.7 KiB
102 lines
3.7 KiB
#!/usr/bin/env python
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"""
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Copyright (c) 2006-2024 sqlmap developers (https://sqlmap.org/)
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See the file 'LICENSE' for copying permission
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"""
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# 导入所需的标准库和自定义模块
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import functools # 用于高阶函数和操作
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import os # 提供与操作系统交互的功能
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import random # 用于生成随机数
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import shutil # 提供高级文件操作
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import stat # 提供文件属性相关常量
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import string # 提供字符串常量
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# 导入自定义工具函数
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from lib.core.common import getSafeExString # 安全地获取异常字符串
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from lib.core.common import openFile # 安全地打开文件
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from lib.core.compat import xrange # 兼容Python2/3的range函数
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from lib.core.convert import getUnicode # 转换为Unicode字符串
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from lib.core.data import logger # 日志记录器
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from thirdparty.six import unichr as _unichr # 兼容Python2/3的unichr函数
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def purge(directory):
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"""
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安全地删除指定目录的所有内容
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参数:
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directory: 要清理的目录路径
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"""
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# 检查目录是否存在
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if not os.path.isdir(directory):
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warnMsg = "skipping purging of directory '%s' as it does not exist" % directory
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logger.warning(warnMsg)
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return
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# 输出开始清理的信息
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infoMsg = "purging content of directory '%s'..." % directory
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logger.info(infoMsg)
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# 初始化存储文件路径和目录路径的列表
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filepaths = []
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dirpaths = []
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# 遍历目录树,收集所有文件和目录的绝对路径
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for rootpath, directories, filenames in os.walk(directory):
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dirpaths.extend(os.path.abspath(os.path.join(rootpath, _)) for _ in directories)
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filepaths.extend(os.path.abspath(os.path.join(rootpath, _)) for _ in filenames)
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# 第一步：修改所有文件的权限为可读可写
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logger.debug("changing file attributes")
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for filepath in filepaths:
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try:
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os.chmod(filepath, stat.S_IREAD | stat.S_IWRITE)
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except:
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pass
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# 第二步：用随机数据覆盖文件内容
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logger.debug("writing random data to files")
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for filepath in filepaths:
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try:
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filesize = os.path.getsize(filepath)
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with openFile(filepath, "w+b") as f:
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f.write("".join(_unichr(random.randint(0, 255)) for _ in xrange(filesize)))
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except:
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pass
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# 第三步：清空所有文件
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logger.debug("truncating files")
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for filepath in filepaths:
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try:
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with open(filepath, 'w') as f:
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pass
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except:
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pass
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# 第四步：将文件名替换为随机字母组合
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logger.debug("renaming filenames to random values")
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for filepath in filepaths:
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try:
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os.rename(filepath, os.path.join(os.path.dirname(filepath), "".join(random.sample(string.ascii_letters, random.randint(4, 8)))))
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except:
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pass
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# 按目录深度排序,确保先处理最深的目录
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dirpaths.sort(key=functools.cmp_to_key(lambda x, y: y.count(os.path.sep) - x.count(os.path.sep)))
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# 第五步：将目录名替换为随机字母组合
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logger.debug("renaming directory names to random values")
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for dirpath in dirpaths:
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try:
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os.rename(dirpath, os.path.join(os.path.dirname(dirpath), "".join(random.sample(string.ascii_letters, random.randint(4, 8)))))
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except:
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pass
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# 最后一步：删除整个目录树
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logger.debug("deleting the whole directory tree")
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try:
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shutil.rmtree(directory)
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except OSError as ex:
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logger.error("problem occurred while removing directory '%s' ('%s')" % (getUnicode(directory), getSafeExString(ex)))
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