def translate_error(event_bus, operation, path):
try:
yield
except NTStatusError:
raise
except FSLocalOperationError as exc:
raise NTStatusError(exc.ntstatus) from exc
except FSRemoteOperationError as exc:
event_bus.send("mountpoint.remote_error",
exc=exc,
operation=operation,
path=path)
raise NTStatusError(exc.ntstatus) from exc
except (Cancelled, RunFinishedError) as exc:
# WinFSP teardown operation doesn't make sure no concurrent operation
# are running
raise NTStatusError(NTSTATUS.STATUS_NO_SUCH_DEVICE) from exc
except Exception as exc:
logger.exception("Unhandled exception in winfsp mountpoint",
operation=operation,
path=path)
event_bus.send("mountpoint.unhandled_error",
exc=exc,
operation=operation,
path=path)
raise NTStatusError(NTSTATUS.STATUS_INTERNAL_ERROR) from exc
def can_delete(self, file_context, file_name: str) -> None:
self.fs_access.check_write_rights(file_context.path)
stat = self.fs_access.entry_info(file_context.path)
if stat["type"] == "file":
return
if file_context.is_root():
# Cannot remove root mountpoint !
raise NTStatusError(NTSTATUS.STATUS_RESOURCEMANAGER_READ_ONLY)
if stat["children"]:
raise NTStatusError(NTSTATUS.STATUS_DIRECTORY_NOT_EMPTY)
def read_directory(self, file_context, marker):
entries = []
stat = self.fs_access.entry_info(file_context.path)
if stat["type"] == "file":
raise NTStatusError(NTSTATUS.STATUS_NOT_A_DIRECTORY)
# NOTE: The "." and ".." directories should ONLY be included
# if the queried directory is not root
# Current directory
if marker is None and not file_context.path.is_root():
entry = {"file_name": ".", **stat_to_winfsp_attributes(stat)}
entries.append(entry)
elif marker == ".":
marker = None
# Parent directory
if marker is None and not file_context.path.is_root():
parent_stat = self.fs_access.entry_info(file_context.path.parent)
entry = {
"file_name": "..",
**stat_to_winfsp_attributes(parent_stat)
}
entries.append(entry)
elif marker == "..":
marker = None
# NOTE: we *do not* rely on alphabetically sorting to compare the
# marker given `..` is always the first element event if we could
# have children name before it (`.-foo` for instance)
iter_children_names = iter(stat["children"])
if marker is not None:
for child_name in iter_children_names:
if child_name == marker:
break
# All remaining children are located after the marker
for child_name in iter_children_names:
name = winify_entry_name(child_name)
child_stat = self.fs_access.entry_info(file_context.path /
child_name)
entry = {
"file_name": name,
**stat_to_winfsp_attributes(child_stat)
}
entries.append(entry)
return entries
def get_path_and_translate_error(
fs_access: ThreadFSAccess,
operation: str,
file_context: Union[OpenedFile, OpenedFolder, str],
mountpoint: PurePath,
workspace_id: EntryID,
timestamp: Optional[DateTime],
) -> Iterator[FsPath]:
path: FsPath = FsPath("/<unkonwn>")
try:
if isinstance(file_context, (OpenedFile, OpenedFolder)):
path = file_context.path
else:
# FsPath conversion might raise an FSNameTooLongError so make
# sure it runs within the try-except so it can be caught by the
# FSLocalOperationError filter.
path = _winpath_to_parsec(file_context)
yield path
except NTStatusError:
raise
except FSLocalOperationError as exc:
raise NTStatusError(exc.ntstatus) from exc
except FSRemoteOperationError as exc:
fs_access.send_event(
CoreEvent.MOUNTPOINT_REMOTE_ERROR,
exc=exc,
operation=operation,
path=path,
mountpoint=mountpoint,
workspace_id=workspace_id,
timestamp=timestamp,
)
raise NTStatusError(exc.ntstatus) from exc
except (Cancelled, RunFinishedError) as exc:
# WinFSP teardown operation doesn't make sure no concurrent operation
# are running
raise NTStatusError(NTSTATUS.STATUS_NO_SUCH_DEVICE) from exc
except TrioDealockTimeoutError as exc:
# See the similar clause in `fuse_operations` for a detailed explanation
logger.error(
"The trio thread is unreachable, a deadlock might have occured",
operation=operation,
path=str(path),
mountpoint=str(mountpoint),
workspace_id=workspace_id,
timestamp=timestamp,
)
fs_access.send_event(
CoreEvent.MOUNTPOINT_TRIO_DEADLOCK_ERROR,
exc=exc,
operation=operation,
path=path,
mountpoint=mountpoint,
workspace_id=workspace_id,
timestamp=timestamp,
)
raise NTStatusError(NTSTATUS.STATUS_INTERNAL_ERROR) from exc
except Exception as exc:
logger.exception(
"Unhandled exception in winfsp mountpoint",
operation=operation,
path=str(path),
mountpoint=str(mountpoint),
workspace_id=workspace_id,
timestamp=timestamp,
)
fs_access.send_event(
CoreEvent.MOUNTPOINT_UNHANDLED_ERROR,
exc=exc,
operation=operation,
path=path,
mountpoint=mountpoint,
workspace_id=workspace_id,
timestamp=timestamp,
)
raise NTStatusError(NTSTATUS.STATUS_INTERNAL_ERROR) from exc