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- ##############################################################################
- #
- # Zope Public License (ZPL) Version 1.0
- # -------------------------------------
- #
- # Copyright (c) Digital Creations. All rights reserved.
- #
- # This license has been certified as Open Source(tm).
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions are
- # met:
- #
- # 1. Redistributions in source code must retain the above copyright
- # notice, this list of conditions, and the following disclaimer.
- #
- # 2. Redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions, and the following disclaimer in
- # the documentation and/or other materials provided with the
- # distribution.
- #
- # 3. Digital Creations requests that attribution be given to Zope
- # in any manner possible. Zope includes a "Powered by Zope"
- # button that is installed by default. While it is not a license
- # violation to remove this button, it is requested that the
- # attribution remain. A significant investment has been put
- # into Zope, and this effort will continue if the Zope community
- # continues to grow. This is one way to assure that growth.
- #
- # 4. All advertising materials and documentation mentioning
- # features derived from or use of this software must display
- # the following acknowledgement:
- #
- # "This product includes software developed by Digital Creations
- # for use in the Z Object Publishing Environment
- # (http://www.zope.org/)."
- #
- # In the event that the product being advertised includes an
- # intact Zope distribution (with copyright and license included)
- # then this clause is waived.
- #
- # 5. Names associated with Zope or Digital Creations must not be used to
- # endorse or promote products derived from this software without
- # prior written permission from Digital Creations.
- #
- # 6. Modified redistributions of any form whatsoever must retain
- # the following acknowledgment:
- #
- # "This product includes software developed by Digital Creations
- # for use in the Z Object Publishing Environment
- # (http://www.zope.org/)."
- #
- # Intact (re-)distributions of any official Zope release do not
- # require an external acknowledgement.
- #
- # 7. Modifications are encouraged but must be packaged separately as
- # patches to official Zope releases. Distributions that do not
- # clearly separate the patches from the original work must be clearly
- # labeled as unofficial distributions. Modifications which do not
- # carry the name Zope may be packaged in any form, as long as they
- # conform to all of the clauses above.
- #
- #
- # Disclaimer
- #
- # THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
- # EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
- # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- # SUCH DAMAGE.
- #
- #
- # This software consists of contributions made by Digital Creations and
- # many individuals on behalf of Digital Creations. Specific
- # attributions are listed in the accompanying credits file.
- #
- ##############################################################################
- """Permission Mapping
-
- Sometimes, we need an object's permissions to be remapped to other permissions
- when the object is used in specual ways. This is rather hard, since we
- need the object's ordinary permissions intact so we can manage it.
- """
-
- import ExtensionClass, Acquisition
- from Permission import pname
- from Owned import UnownableOwner
-
- class RoleManager:
-
-
- def manage_getPermissionMapping(self):
- """Return the permission mapping for the object
-
- This is a list of dictionaries with:
-
- permission_name -- The name of the native object permission
-
- class_permission -- The class permission the permission is
- mapped to.
- """
- wrapper=getattr(self, '_permissionMapper', None)
- if wrapper is None: wrapper=PM()
-
- perms={}
- for p in self.possible_permissions():
- perms[pname(p)]=p
-
- r=[]
- a=r.append
- for ac_perms in self.ac_inherited_permissions(1):
- p=perms.get(getPermissionMapping(ac_perms[0], wrapper), '')
- a({'permission_name': ac_perms[0], 'class_permission': p})
- return r
-
- def manage_setPermissionMapping(self,
- permission_names=[],
- class_permissions=[], REQUEST=None):
- """Change the permission mapping
- """
- wrapper=getattr(self, '_permissionMapper', None)
- if wrapper is None: wrapper=PM()
-
- perms=self.possible_permissions()
- for i in range(len(permission_names)):
- name=permission_names[i]
- p=class_permissions[i]
- if p and (p not in perms):
- __traceback_info__=perms, p, i
- raise 'Permission mapping error', (
- """Attempted to map a permission to a permission, %s,
- that is not valid. This should never happen. (Waaa).
- """ % p)
-
-
- setPermissionMapping(name, wrapper, p)
-
- self._permissionMapper=wrapper
-
- if REQUEST is not None:
- return self.manage_access(
- self, REQUEST,
- manage_tabs_message='The permission mapping has been updated')
-
- def _isBeingUsedAsAMethod(self, REQUEST =None, wannaBe=0):
- try:
- if hasattr(self, 'aq_self'):
- r=self.aq_acquire('_isBeingUsedAsAMethod_')
- else:
- r=self._isBeingUsedAsAMethod_
- except: r=0
-
- if REQUEST is not None:
- if not r != (not wannaBe): REQUEST.response.notFoundError()
-
- return r
-
- def _isBeingAccessedAsZClassDefinedInstanceMethod(self):
- p=getattr(self,'aq_parent',None)
- if p is None: return 0 # Not wrapped
- base=getattr(p, 'aq_base', None)
- return type(base) is PermissionMapper
-
-
-
- def getPermissionMapping(name, obj, st=type('')):
- obj=getattr(obj, 'aq_base', obj)
- name=pname(name)
- r=getattr(obj, name, '')
- if type(r) is not st: r=''
- return r
-
- def setPermissionMapping(name, obj, v):
- name=pname(name)
- if v: setattr(obj, name, pname(v))
- elif obj.__dict__.has_key(name): delattr(obj, name)
-
- class PM(ExtensionClass.Base):
- _owner=UnownableOwner
-
- _View_Permission='_View_Permission'
-
- def __getattr__(self, name):
- # We want to make sure that any non-explicitly set methods are
- # private!
- if name[:1]=='_' and name[-11:]=="_Permission": return ''
- raise AttributeError, name
-
- PermissionMapper=PM
-
- def aqwrap(object, wrapper, parent):
- r=Rewrapper()
- r._ugh=wrapper, object, parent
- return r
-
- class Rewrapper(ExtensionClass.Base):
- def __of__(self, parent):
- w, m, p = self._ugh
- return m.__of__(
- Acquisition.ImplicitAcquisitionWrapper(
- w, parent))
-
- def __getattr__(self, name):
- w, m, parent = self._ugh
- self=m.__of__(
- Acquisition.ImplicitAcquisitionWrapper(
- w, parent))
- return getattr(self, name)
-
- def __call__(self, *args, **kw):
- w, m, parent = self._ugh
- self=m.__of__(
- Acquisition.ImplicitAcquisitionWrapper(
- w, parent))
- return apply(self, args, kw)
-