4 Copyright (C) Simo Sorce 2005
5 Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
6 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
25 * Component: ldb deleted objects control module
27 * Description: this module hides deleted objects, and returns them if the right control is there
29 * Author: Stefan Metzmacher
33 #include "ldb/include/ldb_module.h"
34 #include "dsdb/samdb/samdb.h"
37 static int show_deleted_search(struct ldb_module *module, struct ldb_request *req)
39 struct ldb_context *ldb;
40 struct ldb_control *control;
41 struct ldb_control **saved_controls;
42 struct ldb_request *down_req;
43 struct ldb_parse_tree *nodeleted_tree;
44 struct ldb_parse_tree *new_tree = req->op.search.tree;
47 ldb = ldb_module_get_ctx(module);
49 /* check if there's a show deleted control */
50 control = ldb_request_get_control(req, LDB_CONTROL_SHOW_DELETED_OID);
53 nodeleted_tree = talloc_get_type(ldb_module_get_private(module),
54 struct ldb_parse_tree);
56 new_tree = talloc(req, struct ldb_parse_tree);
59 return LDB_ERR_OPERATIONS_ERROR;
61 *new_tree = *nodeleted_tree;
62 /* Replace dummy part of 'and' with the old, tree,
63 without a parse step */
64 new_tree->u.list.elements[0] = req->op.search.tree;
68 ret = ldb_build_search_req_ex(&down_req, ldb, req,
74 req->context, req->callback,
76 if (ret != LDB_SUCCESS) {
80 /* if a control is there remove if from the modified request */
81 if (control && !save_controls(control, down_req, &saved_controls)) {
82 return LDB_ERR_OPERATIONS_ERROR;
85 /* perform the search */
86 return ldb_next_request(module, down_req);
89 static int show_deleted_init(struct ldb_module *module)
91 struct ldb_context *ldb;
92 struct ldb_parse_tree *nodeleted_tree;
95 ldb = ldb_module_get_ctx(module);
97 nodeleted_tree = ldb_parse_tree(module, "(&(replace=me)(!(isDeleted=TRUE)))");
98 if (!nodeleted_tree) {
99 ldb_debug(ldb, LDB_DEBUG_ERROR,
100 "show_deleted: Unable to parse isDeleted master expression!\n");
101 return LDB_ERR_OPERATIONS_ERROR;
104 ldb_module_set_private(module, nodeleted_tree);
106 ret = ldb_mod_register_control(module, LDB_CONTROL_SHOW_DELETED_OID);
107 if (ret != LDB_SUCCESS) {
108 ldb_debug(ldb, LDB_DEBUG_ERROR,
109 "show_deleted: Unable to register control with rootdse!\n");
110 return LDB_ERR_OPERATIONS_ERROR;
113 return ldb_next_init(module);
116 _PUBLIC_ const struct ldb_module_ops ldb_show_deleted_module_ops = {
117 .name = "show_deleted",
118 .search = show_deleted_search,
119 .init_context = show_deleted_init