--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cubicweb/misc/cwzope/cwzope.py	Sat Jan 16 13:48:51 2016 +0100
@@ -0,0 +1,50 @@
+# 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/>.
+"""
+
+"""
+from AccessControl import getSecurityManager
+
+from cubicweb.dbapi import connect, Connection, Cursor
+from cubicweb.common.utils import ResultSet, ResultSetIterator, ResultSetRow, Entity
+
+Connection.__allow_access_to_unprotected_subobjects__ = 1
+Cursor.__allow_access_to_unprotected_subobjects__ = 1
+ResultSet.__allow_access_to_unprotected_subobjects__ = 1
+ResultSetIterator.__allow_access_to_unprotected_subobjects__ = 1
+ResultSetRow.__allow_access_to_unprotected_subobjects__ = 1
+Entity.__allow_access_to_unprotected_subobjects__ = 1
+
+CNX_CACHE = {}
+
+def get_connection(context, user=None, password=None,
+                   host=None, database=None, group='cubicweb'):
+    """get a connection on an cubicweb server"""
+    request = context.REQUEST
+    zope_user = getSecurityManager().getUser()
+    if user is None:
+        user = zope_user.getId()
+    key = (user, host, database)
+    try:
+        return CNX_CACHE[key]
+    except KeyError:
+        if password is None:
+            password = zope_user._getPassword()
+        cnx = connect(user, password, host, database, group)
+        CNX_CACHE[key] = cnx
+        return cnx