Add option to limit the attributes allowed in an entry.

Kerberos ticket policy can update policy in a user entry. This allowed
set/addattr to be used to modify attributes outside of the ticket policy
perview, also bypassing all validation/normalization. Likewise the
ticket policy was updatable by the user plugin bypassing all validation.

Add two new LDAPObject values to control this behavior:

limit_object_classes: only attributes in these are allowed
disallow_object_classes: attributes in these are disallowed

By default both of these lists are empty so are skipped.

ticket 744

tests/test_xmlrpc/test_krbtpolicy.py

@@ -0,0 +1,138 @@
+# Authors:
+#   Rob Crittenden <rcritten@redhat.com>
+#
+# Copyright (C) 2011  Red Hat
+# see file 'COPYING' for use and warranty information
+#
+# 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 3 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, see <http://www.gnu.org/licenses/>.
+"""
+Test kerberos ticket policy
+"""
+
+from ipalib import api, errors
+from tests.test_xmlrpc import objectclasses
+from xmlrpc_test import Declarative, fuzzy_digits, fuzzy_uuid
+
+user1 = u'tuser1'
+
+class test_krbtpolicy(Declarative):
+    cleanup_commands = [
+        ('user_del', [user1], {}),
+    ]
+
+    tests = [
+
+
+        dict(
+            desc='Reset global policy',
+            command=(
+                'krbtpolicy_reset', [], {}
+            ),
+            expected=dict(
+                value=u'',
+                summary=None,
+                result=dict(
+                    krbmaxticketlife=[u'86400'],
+                    krbmaxrenewableage=[u'604800'],
+                ),
+            ),
+        ),
+
+
+        dict(
+            desc='Show global policy',
+            command=(
+                'krbtpolicy_show', [], {}
+            ),
+            expected=dict(
+                value=u'',
+                summary=None,
+                result=dict(
+                    dn=u'cn=%s,cn=kerberos,%s' % (api.env.domain, api.env.basedn),
+                    krbmaxticketlife=[u'86400'],
+                    krbmaxrenewableage=[u'604800'],
+                ),
+            ),
+        ),
+
+
+        dict(
+            desc='Update global policy',
+            command=(
+                'krbtpolicy_mod', [], dict(krbmaxticketlife=3600)
+            ),
+            expected=dict(
+                value=u'',
+                summary=None,
+                result=dict(
+                    krbmaxticketlife=[u'3600'],
+                    krbmaxrenewableage=[u'604800'],
+                ),
+            ),
+        ),
+
+
+        dict(
+            desc='Create %r' % user1,
+            command=(
+                'user_add', [user1], dict(givenname=u'Test', sn=u'User1')
+            ),
+            expected=dict(
+                value=user1,
+                summary=u'Added user "%s"' % user1,
+                result=dict(
+                    gecos=[u'Test User1'],
+                    givenname=[u'Test'],
+                    homedirectory=[u'/home/tuser1'],
+                    krbprincipalname=[u'tuser1@' + api.env.realm],
+                    loginshell=[u'/bin/sh'],
+                    objectclass=objectclasses.user,
+                    sn=[u'User1'],
+                    uid=[user1],
+                    uidnumber=[fuzzy_digits],
+                    displayname=[u'Test User1'],
+                    cn=[u'Test User1'],
+                    initials=[u'TU'],
+                    ipauniqueid=[fuzzy_uuid],
+                    dn=u'uid=%s,cn=users,cn=accounts,%s' % (user1, api.env.basedn)
+                ),
+            ),
+        ),
+
+
+        dict(
+            desc='Update user ticket policy',
+            command=(
+                'krbtpolicy_mod', [user1], dict(krbmaxticketlife=3600)
+            ),
+            expected=dict(
+                value=user1,
+                summary=None,
+                result=dict(
+                    krbmaxticketlife=[u'3600'],
+                ),
+            ),
+        ),
+
+
+        dict(
+            desc='Try updating other user attribute',
+            command=(
+                'krbtpolicy_mod', [user1], dict(setattr=u'givenname=Pete')
+            ),
+            expected=errors.ObjectclassViolation(info='attribute "givenname" not allowed'),
+        ),
+
+
+    ]

tests/test_xmlrpc/test_user_plugin.py

@@ -304,6 +304,15 @@ class test_user(Declarative):
         ),
 
 
+        dict(
+            desc='Try updating the krb ticket policy of %r' % user1,
+            command=(
+                'user_mod', [user1], dict(setattr=u'krbmaxticketlife=88000')
+            ),
+            expected=errors.ObjectclassViolation(info='attribute "krbmaxticketlife" not allowed'),
+        ),
+
+
         dict(
             desc='Retrieve %r to verify update' % user1,
             command=('user_show', [user1], {}),
@@ -388,6 +397,17 @@ class test_user(Declarative):
         ),
 
 
+        dict(
+            desc='Create user %r with krb ticket policy' % user1,
+            command=(
+                'user_add', [user1], dict(givenname=u'Test', sn=u'User1',
+                setattr=u'krbmaxticketlife=88000')
+            ),
+            expected=errors.ObjectclassViolation(info='attribute "krbmaxticketlife" not allowed'),
+        ),
+
+
+
         dict(
             desc='Create %r' % user1,
             command=(