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"""D-Bus exceptions."""
# Copyright (C) 2007 Collabora Ltd. <http://www.collabora.co.uk/>
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use, copy,
# modify, merge, publish, distribute, sublicense, and/or sell copies
# of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
__all__ = ('DBusException', 'MissingErrorHandlerException',
'MissingReplyHandlerException', 'ValidationException',
'IntrospectionParserException', 'UnknownMethodException',
'NameExistsException')
from dbus._compat import is_py3
class DBusException(Exception):
include_traceback = False
"""If True, tracebacks will be included in the exception message sent to
D-Bus clients.
Exceptions that are not DBusException subclasses always behave
as though this is True. Set this to True on DBusException subclasses
that represent a programming error, and leave it False on subclasses that
represent an expected failure condition (e.g. a network server not
responding)."""
def __init__(self, *args, **kwargs):
name = kwargs.pop('name', None)
if name is not None or getattr(self, '_dbus_error_name', None) is None:
self._dbus_error_name = name
if kwargs:
raise TypeError('DBusException does not take keyword arguments: %s'
% ', '.join(kwargs.keys()))
Exception.__init__(self, *args)
def __unicode__(self):
"""Return a unicode error"""
# We can't just use Exception.__unicode__ because it chains up weirdly.
# https://code.launchpad.net/~mvo/ubuntu/quantal/dbus-python/lp846044/+merge/129214
if len(self.args) > 1:
s = unicode(self.args)
else:
s = ''.join(self.args)
if self._dbus_error_name is not None:
return '%s: %s' % (self._dbus_error_name, s)
else:
return s
def __str__(self):
"""Return a str error"""
s = Exception.__str__(self)
if self._dbus_error_name is not None:
return '%s: %s' % (self._dbus_error_name, s)
else:
return s
def get_dbus_message(self):
if len(self.args) > 1:
if is_py3:
s = str(self.args)
else:
s = unicode(self.args)
else:
s = ''.join(self.args)
if isinstance(s, bytes):
return s.decode('utf-8', 'replace')
return s
def get_dbus_name(self):
return self._dbus_error_name
class MissingErrorHandlerException(DBusException):
include_traceback = True
def __init__(self):
DBusException.__init__(self, "error_handler not defined: if you define a reply_handler you must also define an error_handler")
class MissingReplyHandlerException(DBusException):
include_traceback = True
def __init__(self):
DBusException.__init__(self, "reply_handler not defined: if you define an error_handler you must also define a reply_handler")
class ValidationException(DBusException):
include_traceback = True
def __init__(self, msg=''):
DBusException.__init__(self, "Error validating string: %s"%msg)
class IntrospectionParserException(DBusException):
include_traceback = True
def __init__(self, msg=''):
DBusException.__init__(self, "Error parsing introspect data: %s"%msg)
class UnknownMethodException(DBusException):
include_traceback = True
_dbus_error_name = 'org.freedesktop.DBus.Error.UnknownMethod'
def __init__(self, method):
DBusException.__init__(self, "Unknown method: %s"%method)
class NameExistsException(DBusException):
include_traceback = True
def __init__(self, name):
DBusException.__init__(self, "Bus name already exists: %s"%name)