52 lines
1.4 KiB
Python
52 lines
1.4 KiB
Python
#!/usr/bin/python
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'''
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@author - e
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@date - 9/3/2013
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'''
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import sys
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import argparse
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def pngit(infile, outfile, nowrite=0):
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outcounter = 0
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with open(outfile, "wb") as theoutf:
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if nowrite == 0:
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theoutf.write("\x89\x50\x4E\x47\x0D\x0A\x1A\x0A")
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with open(infile, "rb") as f:
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byte = f.read(1)
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while byte != "":
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if outcounter >= nowrite:
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theoutf.write(byte)
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else:
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outcounter+=1
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byte = f.read(1)
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def unpngit(infile, outfile):
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pngit(infile, outfile, 8)
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if __name__ == '__main__':
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parser = argparse.ArgumentParser(description='Process some integers.')
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parser.add_argument('-i', '--input', help='the input file you want to perform a png or unpng operation on.')
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parser.add_argument('-o', '--output', help='the output file after the png or unpng operation.')
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parser.add_argument('-u', '--unpng', action='store_true', help='use this flag to unpng a file that looks like a png file')
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args = parser.parse_args()
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if (not (args.input or args.output)):
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print "Usage:"
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print "\tpython pnger.py -i <from_file> -o <to_file> [optional] -u"
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print "Example:"
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print "\tpython pnger.py -i NSASecrets.txt -o NSASecrets.png"
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print "\tpython pnger.py -i example.cpp -o ireallyenjoycarpeting.png"
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print "\tpython pnger.py -i example.png -o example.cpp --unpng"
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else:
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if args.unpng:
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unpngit(args.input, args.output)
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else:
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pngit(args.input, args.output)
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