Allow overriding all attributes of default permissions

Allow overriding ipapermtarget, ipapermtargetfilter, ipapermlocation,
objectclass of default managed permissions.
This allows defining permissions that are not tied to an object type.
Default values are same as before.

Also, do not reset ipapermbindruletype when updating an existing
managed permission.

Reviewed-By: Martin Kosek <mkosek@redhat.com>

ipaserver/install/plugins/update_managed_permissions.py

@@ -37,9 +37,17 @@ For example, an entry could look like this:
 The permission name must start with the "System:" prefix.
 
 The template dictionary can have the following keys:
-* ipapermbindruletype, ipapermright
+* ipapermtarget, ipapermtargetfilter, ipapermlocation, ipapermright, objectclass
   - Directly used as attributes on the permission.
   - Replaced when upgrading an existing permission
+  - If not specified, these default to the defaults of a permission of the
+    corresponding --type, or (if non_object is specified) to general permission
+    defaults.
+  - ipapermlocation and ipapermtarget must be DNs
+  - ipapermtargetfilter and objectclass must be iterables of strings
+* ipapermbindruletype
+  - Directly used as attribute on the permission.
+  - Not replaced when upgrading an existing permission.
 * ipapermdefaultattr
   - Used as attribute of the permission.
   - When upgrading, only new values are added; all old values are kept.
@@ -47,6 +55,9 @@ The template dictionary can have the following keys:
   - If true, any attributes specified (denied) in the legacy global anonymous
     read ACI will be added to excluded_attributes of the new permission.
   - Has no effect when existing permissions are updated.
+* non_object
+  - If true, no object-specific defaults are used (e.g. for
+    ipapermtargetfilter, ipapermlocation).
 
 No other keys are allowed in the template
 """
@@ -103,7 +114,6 @@ class update_managed_permissions(PostUpdate):
             if managed_permissions:
                 self.log.info('Updating managed permissions for %s', obj.name)
             for name, template in managed_permissions.items():
-                assert name.startswith('System:')
                 self.update_permission(ldap,
                                        obj,
                                        unicode(name),
@@ -115,6 +125,8 @@ class update_managed_permissions(PostUpdate):
     def update_permission(self, ldap, obj, name, template,
                           anonymous_read_blacklist):
         """Update the given permission and the corresponding ACI"""
+        assert name.startswith('System:')
+
         dn = self.api.Object[permission].get_dn(name)
 
         try:
@@ -125,7 +137,7 @@ class update_managed_permissions(PostUpdate):
             entry = ldap.make_entry(dn)
             is_new = True
 
-        self.log.info('Updating managed permission: %s', name)
+        self.log.debug('Updating managed permission: %s', name)
         self.update_entry(obj, entry, template,
                           anonymous_read_blacklist, is_new=is_new)
 
@@ -153,21 +165,37 @@ class update_managed_permissions(PostUpdate):
 
         template = dict(template)
 
-        # Common attributes
-        entry['objectclass'] = self.api.Object[permission].object_class
+        if template.pop('non_object', False):
+            obj = None
 
         entry['ipapermissiontype'] = [u'SYSTEM', u'V2', u'MANAGED']
 
-        # Object-specific attributes
+        # Attributes with defaults
+        objectclass = template.pop('objectclass', None)
+        if objectclass is None:
+            objectclass = self.api.Object[permission].object_class
+        entry['objectclass'] = list(objectclass)
+
+        ldap_filter = template.pop('ipapermtargetfilter', None)
+        if obj and ldap_filter is None:
             ldap_filter = ['(objectclass=%s)' % oc
                            for oc in obj.permission_filter_objectclasses]
-        entry['ipapermtargetfilter'] = ldap_filter
+        entry['ipapermtargetfilter'] = list(ldap_filter or [])
 
+        ipapermlocation = template.pop('ipapermlocation', None)
+        if ipapermlocation is None:
+            assert obj
             ipapermlocation = DN(obj.container_dn, self.api.env.basedn)
         entry.single_value['ipapermlocation'] = ipapermlocation
 
+        # Optional attributes
+        ipapermtarget = template.pop('ipapermtarget', None)
+        if ipapermtarget is not None:
+            entry['ipapermtarget'] = ipapermtarget
+
         # Attributes from template
         bindruletype = template.pop('ipapermbindruletype')
+        if is_new:
             entry.single_value['ipapermbindruletype'] = bindruletype
 
         entry['ipapermright'] = list(template.pop('ipapermright'))