def _mount_config_destination(self):
"""Mounts the destination specified in configuration and modifies the target value
in configuration accordingly.
"""
error = None
try:
_dest = self.get_destination()
_eff_path = self.__mount_uri(_dest)
if _eff_path is None:
self._eff_path = _dest
else:
self._eff_path = _eff_path
if (self._eff_path is None) or (not self._eff_path.startswith(
local_file_utils.PATHSEP)):
raise exceptions.FileAccessException("Unable to mount target")
if not local_file_utils.path_exists(self._eff_path):
raise exceptions.FileAccessException(
"Unable to mount target: Path does not exist")
except SBException as error:
self._logger.error(
"Error in mount callback function. Overwriting previous errors."
)
if self._initialize_callback is None:
raise
if self._initialize_callback is not None:
self._logger.debug(
"Calling additional callback in fuse_fam._mount_cb: %s" %
self._initialize_callback)
self._initialize_callback(error)
if error is None:
self._is_initialized = True
def test_dir_access(cls, path):
_gfileobj = Gio.File.new_for_uri(path)
try:
_gfileobj.enumerate_children('standard::name')
except Gio.Error as error:
raise exceptions.FileAccessException(
get_gio_errmsg(error, "Unable to list directory content"))
def close_stream(cls, file_desc):
try:
file_desc.close()
except Gio.Error as error:
if error.code == Gio.IOError.CLOSED:
raise exceptions.FileAlreadyClosedError(
_("Error while closing stream: %s") % error)
else:
raise exceptions.FileAccessException(
get_gio_errmsg(error, _("Error while closing stream")))
def _get_eff_uri_scheme(uri_scheme):
"""
:todo: can we construct the eff. scheme manually? aparently ssh is just hardlinked to sftp.
"""
# following does not work as expected!
# _gfileobj = _GIOFILE(uri)
# _uri_scheme = _gfileobj.get_uri_scheme()
# _has = _gfileobj.has_uri_scheme(_uri_scheme)
# if _has != True:
# raise ValueError("URI scheme `%s` not supported by backend" % _uri_scheme)
if uri_scheme not in VALID_URI_SCHEMES:
raise exceptions.FileAccessException(
"URI scheme `%s` not supported by Simple Backup" % uri_scheme)
_eff_scheme = URI_SCHEME_TO_EFF_URI_SCHEME[uri_scheme]
if _eff_scheme not in VALID_EFF_URI_SCHEMES:
raise exceptions.FileAccessException("Eff. URI scheme `%s` not supported by Simple Backup"\
% _eff_scheme)
return _eff_scheme
def _mount_cb(self, error):
"""Callback method that gets called when mounting is finished.
Takes errors occurred during the mount process as parameter.
"""
self._in_progress = False # release lock
if self._initialize_callback is not None:
self._logger.debug(
"Calling additional callback in gio_fam._mount_cb: %s" %
self._initialize_callback)
self._initialize_callback(error)
else:
if error is not None:
raise exceptions.FileAccessException("Unable to mount: %s" %
error)
if error is None:
self._is_initialized = True
def test_dir_access(cls, path):
try:
local_file_utils.listdir(path)
except Exception, error:
raise exceptions.FileAccessException(\
"Unable to list directory content: %s" % error)