"""Exceptions shared by different cubicweb packages.
:organization: Logilab
:copyright: 2001-2008 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
"""
__docformat__ = "restructuredtext en"
from yams import ValidationError
# abstract exceptions #########################################################
class CubicWebException(Exception):
"""base class for cubicweb server exception"""
msg = ""
def __str__(self):
if self.msg:
if self.args:
return self.msg % tuple(self.args)
return self.msg
return ' '.join(str(arg) for arg in self.args)
class ConfigurationError(CubicWebException):
"""a misconfiguration error"""
class InternalError(CubicWebException):
"""base class for exceptions which should not occurs"""
class SecurityError(CubicWebException):
"""base class for cubicweb server security exception"""
class RepositoryError(CubicWebException):
"""base class for repository exceptions"""
class SourceException(CubicWebException):
"""base class for source exceptions"""
class CubicWebRuntimeError(CubicWebException):
"""base class for runtime exceptions"""
# repository exceptions #######################################################
class ConnectionError(RepositoryError):
"""raised when a bad connection id is given or when an attempt to establish
a connection failed"""
class AuthenticationError(ConnectionError):
"""raised when a bad connection id is given or when an attempt to establish
a connection failed"""
class BadConnectionId(ConnectionError):
"""raised when a bad connection id is given or when an attempt to establish
a connection failed"""
BadSessionId = BadConnectionId # XXX bw compat for pyro connections
class UnknownEid(RepositoryError):
"""the eid is not defined in the system tables"""
msg = 'No entity with eid %s in the repository'
class ETypeNotSupportedBySources(RepositoryError, InternalError):
"""no source support an entity type"""
msg = 'No source supports %r entity\'s type'
class RTypeNotSupportedBySources(RepositoryError, InternalError):
"""no source support a relation type"""
msg = 'No source supports %r relation\'s type'
# security exceptions #########################################################
class Unauthorized(SecurityError):
"""raised when a user tries to perform an action without sufficient
credentials
"""
msg = 'You are not allowed to perform this operation'
msg1 = 'You are not allowed to perform %s operation on %s'
var = None
#def __init__(self, *args):
# self.args = args
def __str__(self):
try:
if self.args and len(self.args) == 2:
return self.msg1 % self.args
if self.args:
return ' '.join(self.args)
return self.msg
except Exception, ex:
return str(ex)
# source exceptions ###########################################################
class EidNotInSource(SourceException):
"""trying to access an object with a particular eid from a particular
source has failed
"""
msg = 'No entity with eid %s in %s'
# registry exceptions #########################################################
class RegistryException(CubicWebException):
"""raised when an unregistered view is called"""
class RegistryNotFound(RegistryException):
"""raised when an unknown registry is requested
this is usually a programming/typo error...
"""
class ObjectNotFound(RegistryException):
"""raised when an unregistered object is requested
this may be a programming/typo or a misconfiguration error
"""
# class ViewNotFound(ObjectNotFound):
# """raised when an unregistered view is called"""
class NoSelectableObject(RegistryException):
"""some views with the given vid have been found but no
one is applyable to the result set
"""
class UnknownProperty(RegistryException):
"""property found in database but unknown in registry"""
# query exception #############################################################
class QueryError(CubicWebRuntimeError):
"""a query try to do something it shouldn't"""
class NotAnEntity(CubicWebRuntimeError):
"""raised when get_entity is called for a column which doesn't contain
a non final entity
"""
# tools exceptions ############################################################
class ExecutionError(Exception):
"""server execution control error (already started, not running...)"""
# pylint: disable-msg=W0611
from logilab.common.clcommands import BadCommandUsage