A Python crawler for extensions from the Chrome Web Store.
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#!/usr/bin/env python3
#
# Copyright (C) 2016 The University of Sheffield, UK
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#
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# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
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""" A tool for analyzing and extracting `*.crx` files
(i.e., Chrome extensions)."""
import argparse
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from ExtensionCrawler.crx import extract_crxfile, verify_crxfile
def main():
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"""Main function of the extension crawler."""
parser = argparse.ArgumentParser()
parser.add_argument("file", help="chrome extension archive (*.crx)")
parser.add_argument('targetdir', nargs='?', default="")
parser.add_argument(
"-c",
"--check",
help="verify format and signature of <file>",
action="store_true")
parser.add_argument(
"-e", "--extract", help="extract <file>", action="store_true")
parser.add_argument(
"-f",
"--force",
help="apply action also to (potential) invalid files",
action="store_true")
parser.add_argument(
"-v", "--verbose", help="increase verbosity", action="store_true")
args = parser.parse_args()
if args.extract:
retval = extract_crxfile(args.verbose, args.force, args.file,
args.targetdir)
else:
retval = verify_crxfile(args.verbose, args.file)
exit(retval)
if __name__ == "__main__":
main()