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90 lines
2.7 KiB
Python
90 lines
2.7 KiB
Python
#!/usr/bin/env python
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"""
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Copyright (c) 2006-2019 sqlmap developers (http://sqlmap.org/)
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See the file 'LICENSE' for copying permission
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"""
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import functools
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import os
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import random
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import shutil
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import stat
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import string
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from lib.core.common import getSafeExString
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from lib.core.compat import xrange
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from lib.core.data import logger
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from thirdparty import six
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def purge(directory):
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"""
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Safely removes content from a given directory
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"""
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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.warn(warnMsg)
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return
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infoMsg = "purging content of directory '%s'..." % directory
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logger.info(infoMsg)
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filepaths = []
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dirpaths = []
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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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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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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 open(filepath, "w+b") as f:
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f.write("".join(chr(random.randint(0, 255)) for _ in xrange(filesize)))
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except:
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pass
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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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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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if six.PY2:
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dirpaths.sort(cmp=lambda x, y: y.count(os.path.sep) - x.count(os.path.sep))
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else:
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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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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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logger.debug("deleting the whole directory tree")
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os.chdir(os.path.join(directory, ".."))
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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')" % (directory, getSafeExString(ex)))
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