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91 lines
2.3 KiB
Python
91 lines
2.3 KiB
Python
#!/usr/bin/env python
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"""
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cloak.py - Simple file encryption/compression utility
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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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from __future__ import print_function
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import os
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import struct
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import sys
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import zlib
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from optparse import OptionError
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from optparse import OptionParser
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if sys.version_info >= (3, 0):
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xrange = range
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def hideAscii(data):
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retVal = b""
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for i in xrange(len(data)):
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value = data[i] if isinstance(data[i], int) else ord(data[i])
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retVal += struct.pack('B', value ^ (127 if value < 128 else 0))
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return retVal
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def cloak(inputFile=None, data=None):
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if data is None:
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with open(inputFile, "rb") as f:
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data = f.read()
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return hideAscii(zlib.compress(data))
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def decloak(inputFile=None, data=None):
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if data is None:
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with open(inputFile, "rb") as f:
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data = f.read()
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try:
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data = zlib.decompress(hideAscii(data))
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except Exception as ex:
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print(ex)
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print('ERROR: the provided input file \'%s\' does not contain valid cloaked content' % inputFile)
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sys.exit(1)
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finally:
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f.close()
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return data
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def main():
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usage = '%s [-d] -i <input file> [-o <output file>]' % sys.argv[0]
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parser = OptionParser(usage=usage, version='0.1')
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try:
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parser.add_option('-d', dest='decrypt', action="store_true", help='Decrypt')
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parser.add_option('-i', dest='inputFile', help='Input file')
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parser.add_option('-o', dest='outputFile', help='Output file')
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(args, _) = parser.parse_args()
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if not args.inputFile:
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parser.error('Missing the input file, -h for help')
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except (OptionError, TypeError) as ex:
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parser.error(ex)
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if not os.path.isfile(args.inputFile):
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print('ERROR: the provided input file \'%s\' is non existent' % args.inputFile)
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sys.exit(1)
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if not args.decrypt:
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data = cloak(args.inputFile)
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else:
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data = decloak(args.inputFile)
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if not args.outputFile:
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if not args.decrypt:
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args.outputFile = args.inputFile + '_'
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else:
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args.outputFile = args.inputFile[:-1]
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f = open(args.outputFile, 'wb')
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f.write(data)
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f.close()
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if __name__ == '__main__':
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main()
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