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-rw-r--r--ldb/modules/sort.c335
1 files changed, 0 insertions, 335 deletions
diff --git a/ldb/modules/sort.c b/ldb/modules/sort.c
deleted file mode 100644
index 25e56b24c..000000000
--- a/ldb/modules/sort.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
- ldb database library
-
- Copyright (C) Simo Sorce 2005-2008
-
- ** 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 server side sort control module
- *
- * Description: this module sorts the results of a search
- *
- * Author: Simo Sorce
- */
-
-#include "ldb_includes.h"
-
-struct opaque {
- struct ldb_context *ldb;
- const struct ldb_attrib_handler *h;
- const char *attribute;
- int reverse;
- int result;
-};
-
-struct sort_context {
- struct ldb_module *module;
-
- char *attributeName;
- char *orderingRule;
- int reverse;
-
- struct ldb_request *req;
- struct ldb_message **msgs;
- char **referrals;
- int num_msgs;
- int num_refs;
-
- const struct ldb_schema_attribute *a;
- int sort_result;
-};
-
-static int build_response(void *mem_ctx, struct ldb_control ***ctrls, int result, const char *desc)
-{
- struct ldb_control **controls;
- struct ldb_sort_resp_control *resp;
- int i;
-
- if (*ctrls) {
- controls = *ctrls;
- for (i = 0; controls[i]; i++);
- controls = talloc_realloc(mem_ctx, controls, struct ldb_control *, i + 2);
- } else {
- i = 0;
- controls = talloc_array(mem_ctx, struct ldb_control *, 2);
- }
- if (! controls )
- return LDB_ERR_OPERATIONS_ERROR;
-
- *ctrls = controls;
-
- controls[i+1] = NULL;
- controls[i] = talloc(controls, struct ldb_control);
- if (! controls[i] )
- return LDB_ERR_OPERATIONS_ERROR;
-
- controls[i]->oid = LDB_CONTROL_SORT_RESP_OID;
- controls[i]->critical = 0;
-
- resp = talloc(controls[i], struct ldb_sort_resp_control);
- if (! resp )
- return LDB_ERR_OPERATIONS_ERROR;
-
- resp->result = result;
- resp->attr_desc = talloc_strdup(resp, desc);
-
- if (! resp->attr_desc )
- return LDB_ERR_OPERATIONS_ERROR;
-
- controls[i]->data = resp;
-
- return LDB_SUCCESS;
-}
-
-static int sort_compare(struct ldb_message **msg1, struct ldb_message **msg2, void *opaque)
-{
- struct sort_context *ac = talloc_get_type(opaque, struct sort_context);
- struct ldb_message_element *el1, *el2;
-
- if (!ac || ac->sort_result != 0) {
- /* an error occurred previously,
- * let's exit the sorting by returning always 0 */
- return 0;
- }
-
- el1 = ldb_msg_find_element(*msg1, ac->attributeName);
- el2 = ldb_msg_find_element(*msg2, ac->attributeName);
-
- if (!el1 || !el2) {
- /* the attribute was not found return and
- * set an error */
- ac->sort_result = LDB_ERR_UNWILLING_TO_PERFORM;
- return 0;
- }
-
- if (ac->reverse)
- return ac->a->syntax->comparison_fn(ac->module->ldb, ac, &el2->values[0], &el1->values[0]);
-
- return ac->a->syntax->comparison_fn(ac->module->ldb, ac, &el1->values[0], &el2->values[0]);
-}
-
-static int server_sort_results(struct sort_context *ac)
-{
- struct ldb_reply *ares;
- int i, ret;
-
- ac->a = ldb_schema_attribute_by_name(ac->module->ldb, ac->attributeName);
- ac->sort_result = 0;
-
- ldb_qsort(ac->msgs, ac->num_msgs,
- sizeof(struct ldb_message *),
- ac, (ldb_qsort_cmp_fn_t)sort_compare);
-
- if (ac->sort_result != LDB_SUCCESS) {
- return ac->sort_result;
- }
-
- for (i = 0; i < ac->num_msgs; i++) {
- ares = talloc_zero(ac, struct ldb_reply);
- if (!ares) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ares->type = LDB_REPLY_ENTRY;
- ares->message = talloc_move(ares, &ac->msgs[i]);
-
- ret = ldb_module_send_entry(ac->req, ares->message, ares->controls);
- if (ret != LDB_SUCCESS) {
- return ret;
- }
- }
-
- for (i = 0; i < ac->num_refs; i++) {
- ares = talloc_zero(ac, struct ldb_reply);
- if (!ares) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ares->type = LDB_REPLY_REFERRAL;
- ares->referral = talloc_move(ares, &ac->referrals[i]);
-
- ret = ldb_module_send_referral(ac->req, ares->referral);
- if (ret != LDB_SUCCESS) {
- return ret;
- }
- }
-
- return LDB_SUCCESS;
-}
-
-static int server_sort_search_callback(struct ldb_request *req, struct ldb_reply *ares)
-{
- struct sort_context *ac;
- int ret;
-
- ac = talloc_get_type(req->context, struct sort_context);
-
- if (!ares) {
- return ldb_module_done(ac->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
- }
- if (ares->error != LDB_SUCCESS) {
- return ldb_module_done(ac->req, ares->controls,
- ares->response, ares->error);
- }
-
- switch (ares->type) {
- case LDB_REPLY_ENTRY:
- ac->msgs = talloc_realloc(ac, ac->msgs, struct ldb_message *, ac->num_msgs + 2);
- if (! ac->msgs) {
- talloc_free(ares);
- ldb_oom(ac->module->ldb);
- return ldb_module_done(ac->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
- }
-
- ac->msgs[ac->num_msgs] = talloc_steal(ac->msgs, ares->message);
- ac->num_msgs++;
- ac->msgs[ac->num_msgs] = NULL;
-
- break;
-
- case LDB_REPLY_REFERRAL:
- ac->referrals = talloc_realloc(ac, ac->referrals, char *, ac->num_refs + 2);
- if (! ac->referrals) {
- talloc_free(ares);
- ldb_oom(ac->module->ldb);
- return ldb_module_done(ac->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
- }
-
- ac->referrals[ac->num_refs] = talloc_steal(ac->referrals, ares->referral);
- ac->num_refs++;
- ac->referrals[ac->num_refs] = NULL;
-
- break;
-
- case LDB_REPLY_DONE:
-
- ret = server_sort_results(ac);
- return ldb_module_done(ac->req, ares->controls,
- ares->response, ret);
- }
-
- talloc_free(ares);
- return LDB_SUCCESS;
-}
-
-static int server_sort_search(struct ldb_module *module, struct ldb_request *req)
-{
- struct ldb_control *control;
- struct ldb_server_sort_control **sort_ctrls;
- struct ldb_control **saved_controls;
- struct ldb_control **controls;
- struct ldb_request *down_req;
- struct sort_context *ac;
- int ret;
-
- /* check if there's a paged request control */
- control = ldb_request_get_control(req, LDB_CONTROL_SERVER_SORT_OID);
- if (control == NULL) {
- /* not found go on */
- return ldb_next_request(module, req);
- }
-
- ac = talloc_zero(req, struct sort_context);
- if (ac == NULL) {
- ldb_oom(module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ac->module = module;
- ac->req = req;
-
- sort_ctrls = talloc_get_type(control->data, struct ldb_server_sort_control *);
- if (!sort_ctrls) {
- return LDB_ERR_PROTOCOL_ERROR;
- }
-
- /* FIXME: we do not support more than one attribute for sorting right now */
- /* FIXME: we need to check if the attribute type exist or return an error */
-
- if (sort_ctrls[1] != NULL) {
- if (control->critical) {
-
- /* callback immediately */
- ret = build_response(req, &controls,
- LDB_ERR_UNWILLING_TO_PERFORM,
- "sort control is not complete yet");
- if (ret != LDB_SUCCESS) {
- return ldb_module_done(req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
- }
-
- return ldb_module_done(req, controls, NULL, ret);
- } else {
- /* just pass the call down and don't do any sorting */
- return ldb_next_request(module, req);
- }
- }
-
- ac->attributeName = sort_ctrls[0]->attributeName;
- ac->orderingRule = sort_ctrls[0]->orderingRule;
- ac->reverse = sort_ctrls[0]->reverse;
-
- ret = ldb_build_search_req_ex(&down_req, module->ldb, ac,
- req->op.search.base,
- req->op.search.scope,
- req->op.search.tree,
- req->op.search.attrs,
- req->controls,
- ac,
- server_sort_search_callback,
- req);
- if (ret != LDB_SUCCESS) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- /* save it locally and remove it from the list */
- /* we do not need to replace them later as we
- * are keeping the original req intact */
- if (!save_controls(control, down_req, &saved_controls)) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- return ldb_next_request(module, down_req);
-}
-
-static int server_sort_init(struct ldb_module *module)
-{
- int ret;
-
- ret = ldb_mod_register_control(module, LDB_CONTROL_SERVER_SORT_OID);
- if (ret != LDB_SUCCESS) {
- ldb_debug(module->ldb, LDB_DEBUG_WARNING,
- "server_sort:"
- "Unable to register control with rootdse!\n");
- }
-
- return ldb_next_init(module);
-}
-
-const struct ldb_module_ops ldb_server_sort_module_ops = {
- .name = "server_sort",
- .search = server_sort_search,
- .init_context = server_sort_init
-};
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