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Resolve recursively the link, add doc

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This commit is contained in:
Adrien Ferrand 2019-06-04 23:18:03 +02:00
parent 0a8005ec10
commit 5368ea73de
1 changed files with 11 additions and 2 deletions
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13
certbot/compat/filesystem.py
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@ -35,12 +35,21 @@ def chmod(file_path, mode):
def _apply_win_mode(file_path, mode):
# Resolve symbolic links
if os.path.islink(file_path):
"""
This function converts the given POSIX mode into a Windows ACL list, and applies it to the
file given its path. If the given path is a symbolic link, it will resolved to apply the
mode on the targeted file.
"""
original_path = file_path
inspected_paths = []
while os.path.islink(file_path):
link_path = file_path
file_path = os.readlink(file_path)
if not os.path.isabs(file_path):
file_path = os.path.join(os.path.dirname(link_path), file_path)
if file_path in inspected_paths:
raise RuntimeError('Error, link {0} is a loop!'.format(original_path))
inspected_paths.append(file_path)
# Get owner sid of the file
security = win32security.GetFileSecurity(file_path, win32security.OWNER_SECURITY_INFORMATION)
user = security.GetSecurityDescriptorOwner()