# -*- coding: utf-8 -*- ############################################################################## # # Copyright (c) 2009 Nexedi SA and Contributors. All Rights Reserved. # Ivan Tyagov <ivan@nexedi.com> # # WARNING: This program as such is intended to be used by professional # programmers who take the whole responsability of assessing all potential # consequences resulting from its eventual inadequacies and bugs # End users who are looking for a ready-to-use solution with commercial # garantees and support are strongly adviced to contract a Free Software # Service Company # # This program is Free Software; you can redistribute it and/or # modify it under the terms of the GNU General Public License # as published by the Free Software Foundation; either version 2 # of the License, or (at your option) any later version. # # This program 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 General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # ############################################################################## from AccessControl import ClassSecurityInfo from Products.ERP5Type import Permissions from warnings import warn class DocumentProxyError(Exception):pass class DocumentProxyMixin: """ This class provides a generic implementation of IDocumentProxy and IDownloadable. """ # Declarative security security = ClassSecurityInfo() security.declareObjectProtected(Permissions.AccessContentsInformation) security.declareProtected(Permissions.AccessContentsInformation, 'index_html') def index_html(self, REQUEST, *args, **kw): """ Only a proxy method """ return self.getProxiedDocument().index_html(REQUEST, *args, **kw) security.declareProtected(Permissions.AccessContentsInformation, \ 'getProxiedDocument' ) def getProxiedDocument(self): """ Try to retrieve the original document """ warn("getProxiedDocument() function is deprecated. Use getProxiedDocumentValue() instead.", \ DeprecationWarning, stacklevel=2) return self.getProxiedDocumentValue() security.declareProtected(Permissions.AccessContentsInformation, 'getProxiedDocument' ) def getProxiedDocumentValue(self): """ Try to retrieve the original document """ proxied_document = self.getDocumentProxyValue() if proxied_document is None: raise DocumentProxyError("Unable to find a proxied document") return proxied_document