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"""
Check for illegal filenames on various operating systems.
The main rules are derived from restrictions on Windows:
https://docs.microsoft.com/en-us/windows/win32/fileio/naming-a-file#naming-conventions
"""
from __future__ import annotations
import os
import struct
import sys
from ansible.module_utils.basic import to_bytes
ILLEGAL_CHARS = [
b'<',
b'>',
b':',
b'"',
b'/',
b'\\',
b'|',
b'?',
b'*'
] + [struct.pack("b", i) for i in range(32)]
ILLEGAL_NAMES = [
"CON",
"PRN",
"AUX",
"NUL",
"COM1",
"COM2",
"COM3",
"COM4",
"COM5",
"COM6",
"COM7",
"COM8",
"COM9",
"LPT1",
"LPT2",
"LPT3",
"LPT4",
"LPT5",
"LPT6",
"LPT7",
"LPT8",
"LPT9",
]
ILLEGAL_END_CHARS = [
'.',
' ',
]
def check_path(path, is_dir=False):
"""Check the specified path for unwanted characters and names."""
type_name = 'directory' if is_dir else 'file'
file_name = os.path.basename(path.rstrip(os.path.sep))
name = os.path.splitext(file_name)[0]
if name.upper() in ILLEGAL_NAMES:
print("%s: illegal %s name %s" % (path, type_name, name.upper()))
if file_name[-1] in ILLEGAL_END_CHARS:
print("%s: illegal %s name end-char '%s'" % (path, type_name, file_name[-1]))
bfile = to_bytes(file_name, encoding='utf-8')
for char in ILLEGAL_CHARS:
if char in bfile:
bpath = to_bytes(path, encoding='utf-8')
print("%s: illegal char '%s' in %s name" % (bpath, char, type_name))
def main():
"""Main entry point."""
for path in sys.argv[1:] or sys.stdin.read().splitlines():
check_path(path, is_dir=path.endswith(os.path.sep))
if __name__ == '__main__':
main()
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