diff options
Diffstat (limited to 'source4/dsdb/samdb/ldb_modules/show_deleted.c')
| -rw-r--r-- | source4/dsdb/samdb/ldb_modules/show_deleted.c | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/show_deleted.c b/source4/dsdb/samdb/ldb_modules/show_deleted.c new file mode 100644 index 0000000000..d619558c21 --- /dev/null +++ b/source4/dsdb/samdb/ldb_modules/show_deleted.c @@ -0,0 +1,159 @@ +/* + 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, + "extended_dn: 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 +}; |