security-and-privacy/mat2
security-and-privacy/mat2
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Escape more control chars in the cli

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This commit is contained in:
jvoisin 2022-03-29 22:13:55 +02:00
parent 05b8e97b68
commit 1c3e2afa1e
1 changed files with 23 additions and 23 deletions
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46
mat2
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@ -26,13 +26,19 @@ assert Union
logging.basicConfig(format='%(levelname)s: %(message)s', level=logging.WARNING)
def __print_without_chars(s: str):
""" Remove control characters
We might use 'Cc' instead of 'C', but better safe than sorry
https://www.unicode.org/reports/tr44/#GC_Values_Table
"""
print(''.join(ch for ch in s if not unicodedata.category(ch).startswith('C')))
def __check_file(filename: str, mode: int = os.R_OK) -> bool:
if not os.path.exists(filename):
print("[-] %s doesn't exist." % filename)
__print_without_chars("[-] %s doesn't exist." % filename)
return False
elif not os.path.isfile(filename):
print("[-] %s is not a regular file." % filename)
__print_without_chars("[-] %s is not a regular file." % filename)
return False
elif not os.access(filename, mode):
mode_str = [] # type: List[str]
@ -40,7 +46,7 @@ def __check_file(filename: str, mode: int = os.R_OK) -> bool:
mode_str += 'readable'
if mode & os.W_OK:
mode_str += 'writeable'
print("[-] %s is not %s." % (filename, 'nor '.join(mode_str)))
__print_without_chars("[-] %s is not %s." % (filename, 'nor '.join(mode_str)))
return False
return True
@ -88,10 +94,10 @@ def show_meta(filename: str, sandbox: bool):
try:
p, mtype = parser_factory.get_parser(filename) # type: ignore
except ValueError as e:
print("[-] something went wrong when processing %s: %s" % (filename, e))
__print_without_chars("[-] something went wrong when processing %s: %s" % (filename, e))
return
if p is None:
print("[-] %s's format (%s) is not supported" % (filename, mtype))
__print_without_chars("[-] %s's format (%s) is not supported" % (filename, mtype))
return
p.sandbox = sandbox
__print_meta(filename, p.get_meta())
@ -100,29 +106,23 @@ def show_meta(filename: str, sandbox: bool):
def __print_meta(filename: str, metadata: dict, depth: int = 1):
padding = " " * depth*2
if not metadata:
print(padding + "No metadata found in %s." % filename)
__print_without_chars(padding + "No metadata found in %s." % filename)
return
print("[%s] Metadata for %s:" % ('+'*depth, filename))
__print_without_chars("[%s] Metadata for %s:" % ('+'*depth, filename))
for (k, v) in sorted(metadata.items()):
if isinstance(v, dict):
__print_meta(k, v, depth+1)
continue
# Remove control characters
# We might use 'Cc' instead of 'C', but better safe than sorry
# https://www.unicode.org/reports/tr44/#GC_Values_Table
try:
v = ''.join(ch for ch in v if not unicodedata.category(ch).startswith('C'))
try: # FIXME this is ugly.
__print_without_chars(padding + " %s: %s" % (k, v))
except UnicodeEncodeError:
__print_without_chars(padding + " %s: harmful content" % k)
except TypeError:
pass # for things that aren't iterable
try: # FIXME this is ugly.
print(padding + " %s: %s" % (k, v))
except UnicodeEncodeError:
print(padding + " %s: harmful content" % k)
def clean_meta(filename: str, is_lightweight: bool, inplace: bool, sandbox: bool,
policy: UnknownMemberPolicy) -> bool:
@ -133,10 +133,10 @@ def clean_meta(filename: str, is_lightweight: bool, inplace: bool, sandbox: bool
try:
p, mtype = parser_factory.get_parser(filename) # type: ignore
except ValueError as e:
print("[-] something went wrong when cleaning %s: %s" % (filename, e))
__print_without_chars("[-] something went wrong when cleaning %s: %s" % (filename, e))
return False
if p is None:
print("[-] %s's format (%s) is not supported" % (filename, mtype))
__print_without_chars("[-] %s's format (%s) is not supported" % (filename, mtype))
return False
p.unknown_member_policy = policy
p.lightweight_cleaning = is_lightweight
@ -151,7 +151,7 @@ def clean_meta(filename: str, is_lightweight: bool, inplace: bool, sandbox: bool
os.rename(p.output_filename, filename)
return ret
except RuntimeError as e:
print("[-] %s can't be cleaned: %s" % (filename, e))
__print_without_chars("[-] %s can't be cleaned: %s" % (filename, e))
return False
@ -169,7 +169,7 @@ def show_parsers():
# mimetype, so there is not point in showing the mimetype at all
continue
formats.add(' - %s (%s)' % (mtype, ', '.join(extensions)))
print('\n'.join(sorted(formats)))
__print_without_chars('\n'.join(sorted(formats)))
def __get_files_recursively(files: List[str]) -> List[str]:
@ -198,9 +198,9 @@ def main() -> int:
show_parsers()
return 0
elif args.check_dependencies:
print("Dependencies for mat2 %s:" % __version__)
__print_without_chars("Dependencies for mat2 %s:" % __version__)
for key, value in sorted(check_dependencies().items()):
print('- %s: %s %s' % (key, 'yes' if value['found'] else 'no',
__print_without_chars('- %s: %s %s' % (key, 'yes' if value['found'] else 'no',
'(optional)' if not value['required'] else ''))
else:
arg_parser.print_help()