/usr/lib/python2.7/dist-packages/twext/web2/dav/noneprops.py is in calendarserver 5.2+dfsg-1.
This file is owned by root:root, with mode 0o644.
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# Copyright (c) 2005-2014 Apple Computer, Inc. All rights reserved.
#
# 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.
#
# DRI: Wilfredo Sanchez, wsanchez@apple.com
##
"""
Empty DAV property store.
This API is considered private to static.py and is therefore subject to
change.
"""
__all__ = ["NonePropertyStore"]
from twext.web2 import responsecode
from twext.web2.http import HTTPError, StatusResponse
from txdav.xml.base import encodeXMLName
class NonePropertyStore (object):
"""
DAV property store which contains no properties and does not allow
properties to be set.
"""
__singleton = None
def __new__(clazz, resource):
if NonePropertyStore.__singleton is None:
NonePropertyStore.__singleton = object.__new__(clazz)
return NonePropertyStore.__singleton
def __init__(self, resource):
pass
def get(self, qname, uid=None):
raise HTTPError(StatusResponse(
responsecode.NOT_FOUND,
"No such property: %s" % (encodeXMLName(*qname),)
))
def set(self, property, uid=None):
raise HTTPError(StatusResponse(
responsecode.FORBIDDEN,
"Permission denied for setting property: %s" % (property,)
))
def delete(self, qname, uid=None):
# RFC 2518 Section 12.13.1 says that removal of
# non-existing property is not an error.
pass
def contains(self, qname, uid=None):
return False
def list(self, uid=None):
return ()
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