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/*
ldb database library
Copyright (C) Simo Sorce 2004
** 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 2 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, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* Name: ldb
*
* Component: ldb objectguid module
*
* Description: add a unique objectGUID onto every new record
*
* Author: Simo Sorce
*/
#include "includes.h"
#include "ldb/include/ldb.h"
#include "ldb/include/ldb_private.h"
#include <time.h>
static struct ldb_message_element *rdn_name_find_attribute(const struct ldb_message *msg, const char *name)
{
int i;
for (i = 0; i < msg->num_elements; i++) {
if (ldb_attr_cmp(name, msg->elements[i].name) == 0) {
return &msg->elements[i];
}
}
return NULL;
}
static int rdn_name_add(struct ldb_module *module, struct ldb_request *req)
{
const struct ldb_message *msg = req->op.add.message;
struct ldb_message *msg2;
struct ldb_message_element *attribute;
struct ldb_dn_component *rdn;
int i, ret;
ldb_debug(module->ldb, LDB_DEBUG_TRACE, "rdn_name_add_record\n");
/* do not manipulate our control entries */
if (ldb_dn_is_special(msg->dn)) {
return ldb_next_request(module, req);
}
/* Perhaps someone above us knows better */
if ((attribute = rdn_name_find_attribute(msg, "name")) != NULL ) {
return ldb_next_request(module, req);
}
msg2 = talloc(module, struct ldb_message);
if (!msg2) {
return -1;
}
msg2->dn = msg->dn;
msg2->num_elements = msg->num_elements;
msg2->private_data = msg->private_data;
msg2->elements = talloc_array(msg2, struct ldb_message_element, msg2->num_elements);
for (i = 0; i < msg2->num_elements; i++) {
msg2->elements[i] = msg->elements[i];
}
rdn = ldb_dn_get_rdn(msg2, msg2->dn);
if (!rdn) {
talloc_free(msg2);
return -1;
}
if (ldb_msg_add_value(msg2, "name", &rdn->value) != 0) {
talloc_free(msg2);
return -1;
}
attribute = rdn_name_find_attribute(msg2, rdn->name);
if (!attribute) {
if (ldb_msg_add_value(msg2, rdn->name, &rdn->value) != 0) {
talloc_free(msg2);
return -1;
}
} else {
const struct ldb_attrib_handler *handler
= ldb_attrib_handler(module->ldb, rdn->name);
for (i=0; i < attribute->num_values; i++) {
if (handler->comparison_fn(module->ldb, msg2, &rdn->value, &attribute->values[i]) == 0) {
/* overwrite so it matches in case */
attribute->values[i] = rdn->value;
break;
}
}
if (i == attribute->num_values) {
ldb_debug_set(module->ldb, LDB_DEBUG_FATAL,
"RDN mismatch on %s: %s",
ldb_dn_linearize(msg2, msg2->dn), rdn->name);
talloc_free(msg2);
return -1;
}
}
req->op.add.message = msg2;
ret = ldb_next_request(module, req);
req->op.add.message = msg;
talloc_free(msg2);
return ret;
}
static int rdn_name_modify(struct ldb_module *module, struct ldb_request *req)
{
const struct ldb_message *msg = req->op.mod.message;
struct ldb_message *msg2;
struct ldb_message_element *attribute;
struct ldb_dn_component *rdn;
int ret, i;
ldb_debug(module->ldb, LDB_DEBUG_TRACE, "rdn_name_modify_record\n");
/* do not manipulate our control entries */
if (ldb_dn_is_special(msg->dn)) {
return ldb_next_request(module, req);
}
/* Perhaps someone above us knows better */
if ((attribute = rdn_name_find_attribute(msg, "name")) != NULL ) {
return ldb_next_request(module, req);
}
msg2 = talloc(module, struct ldb_message);
if (!msg2) {
return -1;
}
msg2->dn = msg->dn;
msg2->num_elements = msg->num_elements;
msg2->private_data = msg->private_data;
msg2->elements = talloc_array(msg2, struct ldb_message_element, msg2->num_elements);
for (i = 0; i < msg2->num_elements; i++) {
msg2->elements[i] = msg->elements[i];
}
rdn = ldb_dn_get_rdn(msg2, msg2->dn);
if (!rdn) {
talloc_free(msg2);
return -1;
}
if (ldb_msg_add_value(msg2, "name", &rdn->value) != 0) {
talloc_free(msg2);
return -1;
}
attribute = rdn_name_find_attribute(msg2, "name");
if (!attribute) {
talloc_free(msg2);
return -1;
}
attribute->flags = LDB_FLAG_MOD_REPLACE;
req->op.add.message = msg2;
ret = ldb_next_request(module, req);
req->op.add.message = msg;
talloc_free(msg2);
return ret;
}
static int rdn_name_request(struct ldb_module *module, struct ldb_request *req)
{
switch (req->operation) {
case LDB_REQ_ADD:
return rdn_name_add(module, req);
case LDB_REQ_MODIFY:
return rdn_name_modify(module, req);
default:
return ldb_next_request(module, req);
}
}
static const struct ldb_module_ops rdn_name_ops = {
.name = "rdn_name",
.request = rdn_name_request
};
/* the init function */
struct ldb_module *rdn_name_module_init(struct ldb_context *ldb, const char *options[])
{
struct ldb_module *ctx;
ctx = talloc(ldb, struct ldb_module);
if (!ctx)
return NULL;
ctx->private_data = NULL;
ctx->ldb = ldb;
ctx->prev = ctx->next = NULL;
ctx->ops = &rdn_name_ops;
return ctx;
}
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