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#!/usr/bin/python3
# Copyright (c) 2010-2018, Benjamin Drung <bdrung@debian.org>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
# pylint: disable=invalid-name
# pylint: enable=invalid-name
import argparse
import os
import sys
from devscripts.logger import Logger
try:
import magic
except ImportError:
Logger.error("Please install 'python3-magic' in order to use this utility.")
sys.exit(1)
DEFAULT_WHITELISTED_MIMETYPES = [
"application/pgp-keys",
"application/vnd.font-fontforge-sfd", # font source: fontforge
"application/x-elc",
"application/x-empty",
"application/x-font-otf", # font object and source
"application/x-font-ttf", # font object and source
"application/x-font-woff", # font object and source
"application/x-symlink",
"application/xml",
"audio/x-wav",
"font/otf", # font object and source
"font/ttf", # font object and source
"image/gif",
"image/jpeg",
"image/png",
"image/svg+xml",
"image/tiff",
"image/vnd.adobe.photoshop",
"image/x-icns",
"image/x-ico",
"image/x-icon",
"image/x-ms-bmp",
"image/x-portable-pixmap",
"image/x-xpmi",
"inode/symlink",
"inode/x-empty",
"message/rfc822",
"text/html",
"text/plain",
"text/rtf",
"text/troff",
"text/x-asm",
"text/x-c",
"text/x-c++",
"text/x-diff",
"text/x-fortran",
"text/x-java",
"text/x-lisp",
"text/x-m4",
"text/x-makefile",
"text/x-msdos-batch",
"text/x-pascal",
"text/x-perl",
"text/x-php",
"text/x-po",
"text/x-ruby",
"text/x-script.python",
"text/x-shellscript",
"text/x-tex",
"text/x-texinfo",
"text/xml",
]
DEFAULT_WHITELISTED_EXTENSIONS = [
".el", # elisp source files
".fea", # font source format: Adobe Font Development Kit for OpenType
".fog", # font source format: Fontographer
".g2n", # font source format: fontforge
".gdh", # font source format: Graphite (headers)
".gdl", # font source format: Graphite
".glyph", # font source format: cross-toolkit UFO
".gmo", # GNU Machine Object File (for translations with gettext)
".icns", # Apple Icon Image format
".java", # Java source files
".plate", # font source format: Spiro
".rsa",
".sfd", # font source format: fontforge
".sfdir", # font source format: fontforge
".ttx", # font source format: fonttools
".ufo", # font source format: cross-toolkit UFO
".vfb", # font source format: FontLab
".vtp", # font source format: OpenType (VOLT)
".xgf", # font source format: Xgridfit
]
def suspicious_source(
whitelisted_mimetypes, whitelisted_extensions, directory, verbose=False
):
magic_cookie = magic.open(magic.MAGIC_MIME_TYPE)
magic_cookie.load()
for root, dirs, files in os.walk(directory):
for _file in files:
mimetype = magic_cookie.file(os.path.join(root, _file))
if mimetype not in whitelisted_mimetypes:
if not [x for x in whitelisted_extensions if _file.lower().endswith(x)]:
output = os.path.join(root, _file)
if verbose:
output += " (" + mimetype + ")"
print(output)
for vcs_dir in (".bzr", "CVS", ".git", ".svn", ".hg", "_darcs"):
if vcs_dir in dirs:
dirs.remove(vcs_dir)
def main():
script_name = os.path.basename(sys.argv[0])
epilog = f"See {script_name}(1) for more info."
parser = argparse.ArgumentParser(epilog=epilog)
parser.add_argument(
"-v",
"--verbose",
help="print more information",
dest="verbose",
action="store_true",
default=False,
)
parser.add_argument(
"-d",
"--directory",
help="check the files in the specified directory",
dest="directory",
default=".",
)
parser.add_argument(
"-m",
"--mimetype",
metavar="MIMETYPE",
help="Add MIMETYPE to list of whitelisted mimetypes.",
dest="whitelisted_mimetypes",
action="append",
default=DEFAULT_WHITELISTED_MIMETYPES,
)
parser.add_argument(
"-e",
"--extension",
metavar="EXTENSION",
help="Add EXTENSION to list of whitelisted extensions.",
dest="whitelisted_extensions",
action="append",
default=DEFAULT_WHITELISTED_EXTENSIONS,
)
args = parser.parse_args()
whitelisted_extensions = [x.lower() for x in args.whitelisted_extensions]
suspicious_source(
args.whitelisted_mimetypes, whitelisted_extensions, args.directory, args.verbose
)
if __name__ == "__main__":
main()
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