1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/*
ldb database library
Copyright (C) Simo Sorce 2005
Copyright (C) Stefa Metzmacher <metze@samba.org> 2007
** NOTE! The following LGPL license applies to the ldb
** library. This does NOT imply that all of Samba is released
** under the LGPL
This library 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 3 of the License, or (at your option) any later version.
This library 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 this library; if not, see <http://www.gnu.org/licenses/>.
*/
/*
* Name: ldb
*
* Component: ldb deleted objects control module
*
* Description: this module hides deleted objects, and returns them if the right control is there
*
* Author: Stefan Metzmacher
*/
#include "includes.h"
#include "ldb/include/ldb_module.h"
#include "dsdb/samdb/samdb.h"
/* search */
struct show_deleted_search_request {
struct ldb_module *module;
struct ldb_request *req;
};
static int show_deleted_search_callback(struct ldb_request *req,
struct ldb_reply *ares)
{
struct show_deleted_search_request *ar;
ar = talloc_get_type(req->context, struct show_deleted_search_request);
if (!ares) {
return ldb_module_done(ar->req, NULL, NULL,
LDB_ERR_OPERATIONS_ERROR);
}
if (ares->error != LDB_SUCCESS) {
return ldb_module_done(ar->req, ares->controls,
ares->response, ares->error);
}
switch (ares->type) {
case LDB_REPLY_ENTRY:
return ldb_module_send_entry(ar->req, ares->message, ares->controls);
case LDB_REPLY_REFERRAL:
return ldb_module_send_referral(ar->req, ares->referral);
case LDB_REPLY_DONE:
return ldb_module_done(ar->req, ares->controls,
ares->response, LDB_SUCCESS);
}
return LDB_SUCCESS;
}
static int show_deleted_search(struct ldb_module *module, struct ldb_request *req)
{
struct ldb_context *ldb;
struct ldb_control *control;
struct ldb_control **saved_controls;
struct show_deleted_search_request *ar;
struct ldb_request *down_req;
char *old_filter;
char *new_filter;
int ret;
ldb = ldb_module_get_ctx(module);
ar = talloc_zero(req, struct show_deleted_search_request);
if (ar == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
ar->module = module;
ar->req = req;
/* check if there's a show deleted control */
control = ldb_request_get_control(req, LDB_CONTROL_SHOW_DELETED_OID);
if ( ! control) {
old_filter = ldb_filter_from_tree(ar, req->op.search.tree);
new_filter = talloc_asprintf(ar, "(&(!(isDeleted=TRUE))%s)",
old_filter);
ret = ldb_build_search_req(&down_req, ldb, ar,
req->op.search.base,
req->op.search.scope,
new_filter,
req->op.search.attrs,
req->controls,
ar, show_deleted_search_callback,
req);
} else {
ret = ldb_build_search_req_ex(&down_req, ldb, ar,
req->op.search.base,
req->op.search.scope,
req->op.search.tree,
req->op.search.attrs,
req->controls,
ar, show_deleted_search_callback,
req);
}
if (ret != LDB_SUCCESS) {
return ret;
}
/* if a control is there remove if from the modified request */
if (control && !save_controls(control, down_req, &saved_controls)) {
return LDB_ERR_OPERATIONS_ERROR;
}
/* perform the search */
return ldb_next_request(module, down_req);
}
static int show_deleted_init(struct ldb_module *module)
{
struct ldb_context *ldb;
int ret;
ldb = ldb_module_get_ctx(module);
ret = ldb_mod_register_control(module, LDB_CONTROL_SHOW_DELETED_OID);
if (ret != LDB_SUCCESS) {
ldb_debug(ldb, LDB_DEBUG_ERROR,
"show_deleted: Unable to register control with rootdse!\n");
return LDB_ERR_OPERATIONS_ERROR;
}
return ldb_next_init(module);
}
_PUBLIC_ const struct ldb_module_ops ldb_show_deleted_module_ops = {
.name = "show_deleted",
.search = show_deleted_search,
.init_context = show_deleted_init
};
|
