git.sur5r.net Git - openldap/blob - servers/slapd/back-sql/delete.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1999-2004 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted only as authorized by the OpenLDAP
  10  * Public License.
  11  *
  12  * A copy of this license is available in the file LICENSE in the
  13  * top-level directory of the distribution or, alternatively, at
  14  * <http://www.OpenLDAP.org/license.html>.
  15  */
  16 /* ACKNOWLEDGEMENTS:
  17  * This work was initially developed by Dmitry Kovalev for inclusion
  18  * by OpenLDAP Software.
  19  */
  20
  21 #include "portable.h"
  22
  23 #include <stdio.h>
  24 #include <sys/types.h>
  25 #include "ac/string.h"
  26
  27 #include "slap.h"
  28 #include "proto-sql.h"
  29
  30 typedef struct backsql_delete_attr_t {
  31         Operation               *op;
  32         SlapReply               *rs;
  33         SQLHDBC                 dbh;
  34         backsql_entryID         *e_id;
  35 } backsql_delete_attr_t;
  36
  37 static int
  38 backsql_delete_attr_f( void *v_at, void *v_bda )
  39 {
  40         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
  41         backsql_delete_attr_t   *bda = (backsql_delete_attr_t *)v_bda;
  42         int                     rc;
  43
  44         rc = backsql_modify_delete_all_values( bda->op,
  45                         bda->rs, bda->dbh, bda->e_id, at );
  46
  47         if ( rc != LDAP_SUCCESS ) {
  48                 return BACKSQL_AVL_STOP;
  49         }
  50
  51         return BACKSQL_AVL_CONTINUE;
  52 }
  53
  54 static int
  55 backsql_delete_all_attrs(
  56         Operation               *op,
  57         SlapReply               *rs,
  58         SQLHDBC                 dbh,
  59         backsql_entryID         *e_id,
  60         backsql_oc_map_rec      *oc )
  61 {
  62         backsql_delete_attr_t   bda;
  63         int                     rc;
  64
  65         bda.op = op;
  66         bda.rs = rs;
  67         bda.dbh = dbh;
  68         bda.e_id = e_id;
  69
  70         rc = avl_apply( oc->bom_attrs, backsql_delete_attr_f, &bda,
  71                         BACKSQL_AVL_STOP, AVL_INORDER );
  72         if ( rc == BACKSQL_AVL_STOP ) {
  73                 return rs->sr_err;
  74         }
  75
  76         return LDAP_SUCCESS;
  77 }
  78
  79 int
  80 backsql_delete( Operation *op, SlapReply *rs )
  81 {
  82         backsql_info            *bi = (backsql_info*)op->o_bd->be_private;
  83         SQLHDBC                 dbh;
  84         SQLHSTMT                sth;
  85         RETCODE                 rc;
  86         int                     retval;
  87         backsql_oc_map_rec      *oc = NULL;
  88         backsql_entryID         e_id = BACKSQL_ENTRYID_INIT;
  89         Entry                   e;
  90         /* first parameter no */
  91         SQLUSMALLINT            pno;
  92
  93         Debug( LDAP_DEBUG_TRACE, "==>backsql_delete(): deleting entry \"%s\"\n",
  94                         op->o_req_ndn.bv_val, 0, 0 );
  95
  96         dnParent( &op->o_req_dn, &e.e_name );
  97         dnParent( &op->o_req_ndn, &e.e_nname );
  98         e.e_attrs = NULL;
  99
 100         /* check parent for "children" acl */
 101         if ( !access_allowed( op, &e, slap_schema.si_ad_children,
 102                         NULL, ACL_WRITE, NULL ) ) {
 103                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 104                         "no write access to parent\n",
 105                         0, 0, 0 );
 106                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 107                 goto done;
 108
 109         }
 110
 111         rs->sr_err = backsql_get_db_conn( op, &dbh );
 112         if ( rs->sr_err != LDAP_SUCCESS ) {
 113                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 114                         "could not get connection handle - exiting\n",
 115                         0, 0, 0 );
 116                 rs->sr_text = ( rs->sr_err == LDAP_OTHER )
 117                         ? "SQL-backend error" : NULL;
 118                 goto done;
 119         }
 120
 121         rs->sr_err = backsql_dn2id( op, rs, &e_id, dbh, &op->o_req_ndn, 1 );
 122         if ( rs->sr_err != LDAP_SUCCESS ) {
 123                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 124                         "could not lookup entry id\n", 0, 0, 0 );
 125                 goto done;
 126         }
 127
 128         rs->sr_err = backsql_has_children( bi, dbh, &op->o_req_ndn );
 129         switch ( rs->sr_err ) {
 130         case LDAP_COMPARE_TRUE:
 131                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 132                         "entry \"%s\" has children\n",
 133                         op->o_req_dn.bv_val, 0, 0 );
 134                 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 135                 rs->sr_text = "subtree delete not supported";
 136                 goto done;
 137
 138         case LDAP_COMPARE_FALSE:
 139                 break;
 140
 141         default:
 142                 goto done;
 143         }
 144
 145         oc = backsql_id2oc( bi, e_id.eid_oc_id );
 146         if ( oc == NULL ) {
 147                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 148                         "cannot determine objectclass of entry -- aborting\n",
 149                         0, 0, 0 );
 150                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 151                 rs->sr_text = "operation not permitted within namingContext";
 152                 goto done;
 153         }
 154
 155         if ( oc->bom_delete_proc == NULL ) {
 156                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 157                         "delete procedure is not defined "
 158                         "for this objectclass - aborting\n", 0, 0, 0 );
 159                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 160                 rs->sr_text = "operation not permitted within namingContext";
 161                 goto done;
 162         }
 163
 164         /* avl_apply ... */
 165         rs->sr_err = backsql_delete_all_attrs( op, rs, dbh, &e_id, oc );
 166         if ( rs->sr_err != LDAP_SUCCESS ) {
 167                 goto done;
 168         }
 169
 170         rc = backsql_Prepare( dbh, &sth, oc->bom_delete_proc, 0 );
 171         if ( rc != SQL_SUCCESS ) {
 172                 Debug( LDAP_DEBUG_TRACE,
 173                         "   backsql_delete(): "
 174                         "error preparing delete query\n",
 175                         0, 0, 0 );
 176                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 177
 178                 rs->sr_err = LDAP_OTHER;
 179                 rs->sr_text = "SQL-backend error";
 180                 goto done;
 181         }
 182
 183         if ( BACKSQL_IS_DEL( oc->bom_expect_return ) ) {
 184                 pno = 1;
 185                 rc = backsql_BindParamInt( sth, 1, SQL_PARAM_OUTPUT, &retval );
 186                 if ( rc != SQL_SUCCESS ) {
 187                         Debug( LDAP_DEBUG_TRACE,
 188                                 "   backsql_delete(): "
 189                                 "error binding output parameter for objectClass %s\n",
 190                                 oc->bom_oc->soc_cname.bv_val, 0, 0 );
 191                         backsql_PrintErrors( bi->sql_db_env, dbh,
 192                                 sth, rc );
 193                         SQLFreeStmt( sth, SQL_DROP );
 194
 195                         rs->sr_text = "SQL-backend error";
 196                         rs->sr_err = LDAP_OTHER;
 197                         goto done;
 198                 }
 199
 200         } else {
 201                 pno = 0;
 202         }
 203
 204         rc = backsql_BindParamID( sth, pno + 1, SQL_PARAM_INPUT, &e_id.eid_keyval );
 205         if ( rc != SQL_SUCCESS ) {
 206                 Debug( LDAP_DEBUG_TRACE,
 207                         "   backsql_delete(): "
 208                         "error binding keyval parameter for objectClass %s\n",
 209                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 210                 backsql_PrintErrors( bi->sql_db_env, dbh,
 211                         sth, rc );
 212                 SQLFreeStmt( sth, SQL_DROP );
 213
 214                 rs->sr_text = "SQL-backend error";
 215                 rs->sr_err = LDAP_OTHER;
 216                 goto done;
 217         }
 218
 219         rc = SQLExecute( sth );
 220         if ( rc != SQL_SUCCESS ) {
 221                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 222                         "delete_proc execution failed\n", 0, 0, 0 );
 223                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 224                 SQLFreeStmt( sth, SQL_DROP );
 225                 rs->sr_err = LDAP_OTHER;
 226                 rs->sr_text = "SQL-backend error";
 227                 goto done;
 228         }
 229         SQLFreeStmt( sth, SQL_DROP );
 230
 231         /* delete "auxiliary" objectClasses, if any... */
 232         rc = backsql_Prepare( dbh, &sth, bi->sql_delobjclasses_query, 0 );
 233         if ( rc != SQL_SUCCESS ) {
 234                 Debug( LDAP_DEBUG_TRACE,
 235                         "   backsql_delete(): "
 236                         "error preparing ldap_entry_objclasses delete query\n",
 237                         0, 0, 0 );
 238                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 239
 240                 rs->sr_err = LDAP_OTHER;
 241                 rs->sr_text = "SQL-backend error";
 242                 goto done;
 243         }
 244
 245         rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT, &e_id.eid_id );
 246         if ( rc != SQL_SUCCESS ) {
 247                 Debug( LDAP_DEBUG_TRACE,
 248                         "   backsql_delete(): "
 249                         "error binding auxiliary objectClasses "
 250                         "entry ID parameter for objectClass %s\n",
 251                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 252                 backsql_PrintErrors( bi->sql_db_env, dbh,
 253                         sth, rc );
 254                 SQLFreeStmt( sth, SQL_DROP );
 255
 256                 rs->sr_text = "SQL-backend error";
 257                 rs->sr_err = LDAP_OTHER;
 258                 goto done;
 259         }
 260
 261         rc = SQLExecute( sth );
 262         switch ( rc ) {
 263         case SQL_NO_DATA:
 264                 /* apparently there were no "auxiliary" objectClasses
 265                  * for this entry... */
 266         case SQL_SUCCESS:
 267                 break;
 268
 269         default:
 270                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 271                         "failed to delete record from ldap_entry_objclasses\n",
 272                         0, 0, 0 );
 273                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 274                 SQLFreeStmt( sth, SQL_DROP );
 275                 rs->sr_err = LDAP_OTHER;
 276                 rs->sr_text = "SQL-backend error";
 277                 goto done;
 278         }
 279         SQLFreeStmt( sth, SQL_DROP );
 280
 281         /* delete referrals, if any... */
 282         rc = backsql_Prepare( dbh, &sth, bi->sql_delreferrals_query, 0 );
 283         if ( rc != SQL_SUCCESS ) {
 284                 Debug( LDAP_DEBUG_TRACE,
 285                         "   backsql_delete(): "
 286                         "error preparing ldap_referrals delete query\n",
 287                         0, 0, 0 );
 288                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 289
 290                 rs->sr_err = LDAP_OTHER;
 291                 rs->sr_text = "SQL-backend error";
 292                 goto done;
 293         }
 294
 295         rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT, &e_id.eid_id );
 296         if ( rc != SQL_SUCCESS ) {
 297                 Debug( LDAP_DEBUG_TRACE,
 298                         "   backsql_delete(): "
 299                         "error binding referrals entry ID parameter "
 300                         "for objectClass %s\n",
 301                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 302                 backsql_PrintErrors( bi->sql_db_env, dbh,
 303                         sth, rc );
 304                 SQLFreeStmt( sth, SQL_DROP );
 305
 306                 rs->sr_text = "SQL-backend error";
 307                 rs->sr_err = LDAP_OTHER;
 308                 goto done;
 309         }
 310
 311         rc = SQLExecute( sth );
 312         switch ( rc ) {
 313         case SQL_NO_DATA:
 314                 /* apparently there were no referrals
 315                  * for this entry... */
 316         case SQL_SUCCESS:
 317                 break;
 318
 319         default:
 320                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 321                         "failed to delete record from ldap_referrals\n",
 322                         0, 0, 0 );
 323                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 324                 SQLFreeStmt( sth, SQL_DROP );
 325                 rs->sr_err = LDAP_OTHER;
 326                 rs->sr_text = "SQL-backend error";
 327                 goto done;
 328         }
 329         SQLFreeStmt( sth, SQL_DROP );
 330
 331         /* delete entry... */
 332         rc = backsql_Prepare( dbh, &sth, bi->sql_delentry_query, 0 );
 333         if ( rc != SQL_SUCCESS ) {
 334                 Debug( LDAP_DEBUG_TRACE,
 335                         "   backsql_delete(): "
 336                         "error preparing ldap_entries delete query\n",
 337                         0, 0, 0 );
 338                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 339
 340                 rs->sr_err = LDAP_OTHER;
 341                 rs->sr_text = "SQL-backend error";
 342                 goto done;
 343         }
 344
 345         rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT, &e_id.eid_id );
 346         if ( rc != SQL_SUCCESS ) {
 347                 Debug( LDAP_DEBUG_TRACE,
 348                         "   backsql_delete(): "
 349                         "error binding entry ID parameter "
 350                         "for objectClass %s\n",
 351                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 352                 backsql_PrintErrors( bi->sql_db_env, dbh,
 353                         sth, rc );
 354                 SQLFreeStmt( sth, SQL_DROP );
 355
 356                 rs->sr_text = "SQL-backend error";
 357                 rs->sr_err = LDAP_OTHER;
 358                 goto done;
 359         }
 360
 361         rc = SQLExecute( sth );
 362         if ( rc != SQL_SUCCESS ) {
 363                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 364                         "failed to delete record from ldap_entries\n",
 365                         0, 0, 0 );
 366                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 367                 SQLFreeStmt( sth, SQL_DROP );
 368                 rs->sr_err = LDAP_OTHER;
 369                 rs->sr_text = "SQL-backend error";
 370                 goto done;
 371         }
 372         SQLFreeStmt( sth, SQL_DROP );
 373
 374         /*
 375          * Commit only if all operations succeed
 376          *
 377          * FIXME: backsql_add() does not fail if add operations
 378          * are not available for some attributes, or if
 379          * a multiple value add actually results in a replace,
 380          * or if a single operation on an attribute fails
 381          * for any reason
 382          */
 383         SQLTransact( SQL_NULL_HENV, dbh,
 384                         op->o_noop ? SQL_ROLLBACK : SQL_COMMIT );
 385
 386         rs->sr_err = LDAP_SUCCESS;
 387
 388 done:;
 389         send_ldap_result( op, rs );
 390
 391         Debug( LDAP_DEBUG_TRACE, "<==backsql_delete()\n", 0, 0, 0 );
 392
 393         return ( ( rs->sr_err == LDAP_SUCCESS ) ? op->o_noop : 1 );
 394 }
 395