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58 lines
1.7 KiB
Python
Executable File
58 lines
1.7 KiB
Python
Executable File
#!/usr/bin/env python3
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import sys
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'''
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This script finds the most common two-character sequences
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and replace them with a single uppercase character or
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special character, to compression purposes.
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'''
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if len(sys.argv) != 4:
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print("{}: <host list.txt> <awk output.awk> <pac function.js>".format(sys.argv[0]))
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sys.exit(1)
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patternhit = {}
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# "&" character should be prepended with two backslashes for awk's gsub.
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wordreplace=["A", "B", "C", "D", "E", "F", "G", "H", "I", "J",
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"K", "L", "M", "N", "O", "P", "Q", "R", "S", "T",
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"U", "V", "W", "X", "Y", "Z",
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"!", "@", "#", "$", "%", "^", "\\\\&", "*", "(", ")",
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"=", "+", "/", ",", "<", ">", "~", "[", "]", "{", "}"]
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with open(sys.argv[1], "r") as dfile:
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domains = dfile.read().split("\n")
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new_domains = []
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for domain in domains:
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new_domains.append('.'.join(domain.split(".")[:-1]))
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domains = ''.join(new_domains)
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domain_len = len(domains)
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position = 0
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while position <= domain_len:
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cut = domains[position:position+2]
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if not patternhit.get(cut):
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patternhit[cut] = 0
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patternhit[cut] += 1
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position += 2
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patternhit = dict(sorted(patternhit.items(), key=lambda x: x[1]))
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#print(patternhit, file=sys.stderr)
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finallist = list(patternhit)[-1 * len(wordreplace):]
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#print(finallist, file=sys.stderr)
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with open(sys.argv[2], "w") as awkfile:
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print("{", file=awkfile)
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for i, w in enumerate(finallist):
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print('gsub(/{}/, "{}", domainname)'.format(w, wordreplace[i]), file=awkfile)
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print("}", file=awkfile)
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with open(sys.argv[3], "w") as pacfile:
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pacdict = {}
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for i, w in enumerate(finallist):
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pacdict[wordreplace[i].strip('\\')] = w
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print(pacdict, file=pacfile)
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