cryptonas-archive/v0.3.4.2/src/cryptobox/core/exceptions.py

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2007-03-21 18:45:59 +01:00
#
# Copyright 2006 sense.lab e.V.
#
# This file is part of the CryptoBox.
#
# The CryptoBox is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# The CryptoBox is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with the CryptoBox; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
"""
exceptions of the cryptobox package
"""
__revision__ = "$Id"
class CBError(Exception):
"""base class for exceptions of the cryptobox"""
pass
class CBConfigError(CBError):
"""any kind of error related to the configuration of a cryptobox"""
pass
class CBConfigUnavailableError(CBConfigError):
"""config file/input was not available at all"""
def __init__(self, source=None):
self.source = source
def __str__(self):
if self.source:
return "failed to access the configuration of the cryptobox: %s" % self.source
else:
return "failed to access the configuration of the cryptobox"
class CBConfigUndefinedError(CBConfigError):
"""a specific configuration setting was not defined"""
def __init__(self, section, name=None):
self.section = section
self.name = name
def __str__(self):
"""Output the appropriate string: for a setting or a section.
"""
if self.name:
# setting
return "undefined configuration setting: [" + str(self.section) \
+ "]->" + str(self.name) + " - please check your configuration file"
else:
# section
return "undefined configuration section: [" + str(self.section) \
+ "] - please check your configuration file"
class CBConfigInvalidValueError(CBConfigError):
"""a configuration setting was invalid somehow"""
def __init__(self, section, name, value, reason):
self.section = section
self.name = name
self.value = value
self.reason = reason
def __str__(self):
"""Return the error description.
"""
return "invalid configuration setting [%s]->%s (%s): %s" % \
(self.section, self.name, self.value, self.reason)
class CBEnvironmentError(CBError):
"""some part of the environment of the cryptobox is broken
e.g. the wrong version of a required program
"""
def __init__(self, desc):
self.desc = desc
def __str__(self):
"""Return the error description.
"""
return "misconfiguration detected: %s" % self.desc
class CBContainerError(CBError):
"""Any error raised while manipulating a cryptobox container.
"""
class CBCreateError(CBContainerError):
"""Raised if a container could not be created (formatted).
"""
pass
class CBVolumeIsActive(CBContainerError):
"""Raised if a container was active even if it may not for a specific action.
"""
pass
class CBInvalidName(CBContainerError):
"""Raised if someone tried to set an invalid container name.
"""
pass
class CBNameIsInUse(CBContainerError):
"""Raised if the new name of a container is already in use.
"""
pass
class CBInvalidType(CBContainerError):
"""Raised if a container is of an invalid type for a choosen action.
"""
pass
class CBInvalidPassword(CBContainerError):
"""Someone tried to open an ecnrypted container with the wrong password.
"""
pass
class CBChangePasswordError(CBContainerError):
"""Changing of the password of an encrypted container failed.
"""
pass
class CBMountError(CBContainerError):
"""Failed to mount a container.
"""
pass
class CBUmountError(CBContainerError):
"""Failed to umount a container.
"""
pass