cryptonas-branches/pythonrewrite/bin/CryptoBoxExceptions.py

"""
exceptions of the cryptobox package
"""


class CryptoBoxError(Exception):
	"""base class for exceptions of the cryptobox"""
	pass


class CBConfigError(CryptoBoxError):
	"""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):
		# is it a settings or a section?
		if self.name:
			# setting
			return "undefined configuration setting: [%s]->%s - please check your configuration file" % (self.section, self.name)
		else:
			# section
			return "undefined configuration section: [%s] - please check your configuration file" % (self.section, )
			


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 "invalid configuration setting [%s]->%s (%s): %s" % (self.section, self.name, self.value, self.reason)


class CBEnvironmentError(CryptoBoxError):
	"""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 "misconfiguration detected: %s" % self.desc


class CBContainerError(CryptoBoxError):
	"""any error raised while manipulating a cryptobox container"""
	
	def __init__(self, desc):
		self.desc = desc

	def __str__(self):
		return self.desc

class CBCreateError(CBContainerError):
	pass

class CBVolumeIsActive(CBContainerError):
	pass

class CBInvalidName(CBContainerError):
	pass

class CBNameActivelyUsed(CBContainerError):
	pass

class CBInvalidType(CBContainerError):
	pass

class CBInvalidPassword(CBContainerError):
	pass

class CBChangePasswordError(CBContainerError):
	pass

class CBMountError(CBContainerError):
	pass

class CBUmountError(CBContainerError):
	pass