forked from BrowserSecurity/ExtensionCrawler
Refactoring.
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extract-crx
52
extract-crx
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@ -1,7 +1,7 @@
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#!/usr/bin/env python3
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#
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# Copyright (C) 2017 The University of Sheffield, UK
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#
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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@ -13,31 +13,26 @@
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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#
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"""Tool for extracting crx file from a tar archive."""
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import os
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import sys
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import glob
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import re
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import requests
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from time import sleep
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from random import randint
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import getopt
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import tarfile
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import datetime
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from ExtensionCrawler.discover import *
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from ExtensionCrawler.archive import *
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from ExtensionCrawler.util import *
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from ExtensionCrawler.discover import *
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import dateutil
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import dateutil.parser
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import time
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import getopt
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from ExtensionCrawler.archive import last_crx, get_local_archive_dir
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# Script should run with python 3.4 or 3.5
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assert sys.version_info >= (3, 4) and sys.version_info < (3, 6)
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def help():
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def helpmsg():
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"""Print help message."""
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print("extract-crx [OPTION] extid")
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print(" -h print this help text")
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print(" -s silent (no log messages)")
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@ -47,21 +42,20 @@ def help():
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def main(argv):
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today = datetime.datetime.now(datetime.timezone.utc).isoformat()
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"""Main function of the extension crawler."""
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basedir = "archive"
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verbose = True
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date = None
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extid = ""
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outputds = ""
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discover = False
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output = ""
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try:
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opts, args = getopt.getopt(argv, "hsd:a:o:", ["date=","archive=","output="])
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opts, args = getopt.getopt(argv, "hsd:a:o:", ["date=", "archive=", "output="])
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except getopt.GetoptError:
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help()
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helpmsg()
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sys.exit(2)
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for opt, arg in opts:
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if opt == '-h':
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help()
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helpmsg()
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sys.exit()
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elif opt in ("-a", "--archive"):
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basedir = arg
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@ -71,8 +65,6 @@ def main(argv):
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output = arg
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elif opt == '-s':
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verbose = False
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elif opt == '-d':
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discover = True
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if len(args) > 0:
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extid = args[0]
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@ -81,10 +73,10 @@ def main(argv):
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sys.exit()
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if date is not None:
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d = dateutil.parser.parse(date)
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if d.tzinfo is None or d.tzinfo.utcoffset(d) is None:
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d = d.replace(tzinfo=datetime.timezone.utc)
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last = last_crx(os.path.join(basedir, "data"), extid, d)
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dateobj = dateutil.parser.parse(date)
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if dateobj.tzinfo is None or dateobj.tzinfo.utcoffset(dateobj) is None:
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dateobj = dateobj.replace(tzinfo=datetime.timezone.utc)
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last = last_crx(os.path.join(basedir, "data"), extid, dateobj)
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else:
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last = last_crx(os.path.join(basedir, "data"), extid)
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@ -92,10 +84,10 @@ def main(argv):
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tar = os.path.join(basedir, "data",
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get_local_archive_dir(extid), extid + ".tar")
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if os.path.exists(tar):
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t = tarfile.open(tar, 'r')
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if verbose:
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print("Extracting "+os.path.join(output,last))
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t.extract(last,output)
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print("Extracting "+os.path.join(output, last))
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with tarfile.open(tar, 'r') as archive:
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archive.extract(last, output)
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if __name__ == "__main__":
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main(sys.argv[1:])
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