def _secure_folder_path(folderpath, skip_existing, keep_unicode):
"""
Splits a folder path, runs each component through the secure_filename
function, and returns the reconstituted folder path. If skip_existing
is True, components of the path that already exist will not be modified.
Raises a ValueError if any of the path components becomes empty.
"""
_, _, f_list = filepath_components(add_sep(folderpath))
built_path = ''
for component in f_list:
if component:
next_path = os.path.join(built_path, component)
if not skip_existing or not path_exists(next_path, require_directory=True):
try:
component = secure_filename(component, keep_unicode)
except ValueError as e:
raise ValueError(unicode(e) + u': ' + component)
built_path = os.path.join(built_path, component)
return built_path
def _get_nearest_parent_folder(rel_path, data_manager, db_session):
"""
Returns the nearest active parent folder object for rel_path that
already exists in the database.
E.g. For rel_path a/b/c/d
If the database contains all folders then c is returned.
If the database contains only a and b so far then b is returned.
If no folders in rel_path exist then the root folder is returned.
Raises a DBError if no parent folder can be found at all
(but this should never happen).
"""
# Convert a/b/c/d to ['a','b','c','d']
_, _, f_list = filepath_components(add_sep(rel_path))
# Start at root folder
try_path = ''
db_parent_folder = data_manager.get_folder(
folder_path=try_path,
_db_session=db_session
)
# Then try to get more specific
if len(f_list) > 1:
# Loop to len-1 to stop at c in a/b/c/d
for idx in range(len(f_list) - 1):
try_path += (os.path.sep + f_list[idx])
db_f = data_manager.get_folder(
folder_path=try_path,
_db_session=db_session
)
if db_f and db_f.status == Folder.STATUS_ACTIVE:
db_parent_folder = db_f
else:
break
# db_parent_folder should at least be the root folder
if not db_parent_folder:
raise DBError('Failed to identify a parent folder for: ' + rel_path)
return db_parent_folder
