[cwuser] make CWUser callable, returning self for dbapi compatibility
In the dbapi, Connection and Session have a ``user`` method to
generated a user for a request In the repo api, Connection and Session
have a user attribute inherited from SessionRequestBase prototype. This
ugly hack allows to not break user of the user method.
To ease transition from dbapi to repoapi we need the ClientConnection to be as
compatible as possible with the dbapi. Adding this method goes in this
direction.
It'll get deprecated in the deprecation wave that will conclude the repoapi
refactoring.
related to #2503918
# pylint: disable=W0401,W0614
# copyright 2003-2010 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb. If not, see <http://www.gnu.org/licenses/>.
"""exceptions used in the core of the CubicWeb web application"""
__docformat__ = "restructuredtext en"
import httplib
from cubicweb._exceptions import *
from cubicweb.utils import json_dumps
class DirectResponse(Exception):
"""Used to supply a twitted HTTP Response directly"""
def __init__(self, response):
self.response = response
class InvalidSession(CubicWebException):
"""raised when a session id is found but associated session is not found or
invalid"""
# Publish related exception
class PublishException(CubicWebException):
"""base class for publishing related exception"""
def __init__(self, *args, **kwargs):
self.status = kwargs.pop('status', httplib.OK)
super(PublishException, self).__init__(*args, **kwargs)
class LogOut(PublishException):
"""raised to ask for deauthentication of a logged in user"""
def __init__(self, url=None):
super(LogOut, self).__init__()
self.url = url
class Redirect(PublishException):
"""raised to redirect the http request"""
def __init__(self, location, status=httplib.SEE_OTHER):
super(Redirect, self).__init__(status=status)
self.location = location
class StatusResponse(PublishException):
def __init__(self, status, content=''):
super(StatusResponse, self).__init__(status=status)
self.content = content
def __repr__(self):
return '%s(%r, %r)' % (self.__class__.__name__, self.status, self.content)
self.url = url
# Publish related error
class RequestError(PublishException):
"""raised when a request can't be served because of a bad input"""
def __init__(self, *args, **kwargs):
kwargs.setdefault('status', httplib.BAD_REQUEST)
super(RequestError, self).__init__(*args, **kwargs)
class NothingToEdit(RequestError):
"""raised when an edit request doesn't specify any eid to edit"""
def __init__(self, *args, **kwargs):
kwargs.setdefault('status', httplib.BAD_REQUEST)
super(NothingToEdit, self).__init__(*args, **kwargs)
class ProcessFormError(RequestError):
"""raised when posted data can't be processed by the corresponding field
"""
def __init__(self, *args, **kwargs):
kwargs.setdefault('status', httplib.BAD_REQUEST)
super(ProcessFormError, self).__init__(*args, **kwargs)
class NotFound(RequestError):
"""raised when something was not found. In most case,
a 404 error should be returned"""
def __init__(self, *args, **kwargs):
kwargs.setdefault('status', httplib.NOT_FOUND)
super(NotFound, self).__init__(*args, **kwargs)
class RemoteCallFailed(RequestError):
"""raised when a json remote call fails
"""
def __init__(self, reason='', status=httplib.INTERNAL_SERVER_ERROR):
super(RemoteCallFailed, self).__init__(status=status)
self.reason = reason
def dumps(self):
return json_dumps({'reason': self.reason})