1 files changed, 83 insertions, 0 deletions
diff --git a/test/lib/ansible_test/_util/controller/sanity/code-smell/no-illegal-filenames.py b/test/lib/ansible_test/_util/controller/sanity/code-smell/no-illegal-filenames.py
new file mode 100644
index 0000000..10bf4aa
--- /dev/null
+++ b/test/lib/ansible_test/_util/controller/sanity/code-smell/no-illegal-filenames.py
@@ -0,0 +1,83 @@
+"""
+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()