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 1999-2005 The OpenLDAP Foundation.
   5  * Portions Copyright 1999 Dmitry Kovalev.
   6  * Portions Copyright 2002 Pierangelo Masarati.
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted only as authorized by the OpenLDAP
  11  * Public License.
  12  *
  13  * A copy of this license is available in the file LICENSE in the
  14  * top-level directory of the distribution or, alternatively, at
  15  * <http://www.OpenLDAP.org/license.html>.
  16  */
  17 /* ACKNOWLEDGEMENTS:
  18  * This work was initially developed by Dmitry Kovalev for inclusion
  19  * by OpenLDAP Software.  Additional significant contributors include
  20  * Pierangelo Masarati.
  21  */
  22
  23 #include "portable.h"
  24
  25 #include <stdio.h>
  26 #include <sys/types.h>
  27 #include "ac/string.h"
  28
  29 #include "slap.h"
  30 #include "proto-sql.h"
  31
  32 typedef struct backsql_delete_attr_t {
  33         Operation               *op;
  34         SlapReply               *rs;
  35         SQLHDBC                 dbh;
  36         backsql_entryID         *e_id;
  37 } backsql_delete_attr_t;
  38
  39 static int
  40 backsql_delete_attr_f( void *v_at, void *v_bda )
  41 {
  42         backsql_at_map_rec      *at = (backsql_at_map_rec *)v_at;
  43         backsql_delete_attr_t   *bda = (backsql_delete_attr_t *)v_bda;
  44         int                     rc;
  45
  46         rc = backsql_modify_delete_all_values( bda->op,
  47                         bda->rs, bda->dbh, bda->e_id, at );
  48
  49         if ( rc != LDAP_SUCCESS ) {
  50                 return BACKSQL_AVL_STOP;
  51         }
  52
  53         return BACKSQL_AVL_CONTINUE;
  54 }
  55
  56 static int
  57 backsql_delete_all_attrs(
  58         Operation               *op,
  59         SlapReply               *rs,
  60         SQLHDBC                 dbh,
  61         backsql_entryID         *e_id,
  62         backsql_oc_map_rec      *oc )
  63 {
  64         backsql_delete_attr_t   bda;
  65         int                     rc;
  66
  67         bda.op = op;
  68         bda.rs = rs;
  69         bda.dbh = dbh;
  70         bda.e_id = e_id;
  71
  72         rc = avl_apply( oc->bom_attrs, backsql_delete_attr_f, &bda,
  73                         BACKSQL_AVL_STOP, AVL_INORDER );
  74         if ( rc == BACKSQL_AVL_STOP ) {
  75                 return rs->sr_err;
  76         }
  77
  78         return LDAP_SUCCESS;
  79 }
  80
  81 int
  82 backsql_delete( Operation *op, SlapReply *rs )
  83 {
  84         backsql_info            *bi = (backsql_info*)op->o_bd->be_private;
  85         SQLHDBC                 dbh = SQL_NULL_HDBC;
  86         SQLHSTMT                sth = SQL_NULL_HSTMT;
  87         RETCODE                 rc;
  88         int                     prc = LDAP_SUCCESS;
  89         backsql_oc_map_rec      *oc = NULL;
  90         backsql_srch_info       bsi = { 0 };
  91         backsql_entryID         e_id = { 0 };
  92         Entry                   d = { 0 }, p = { 0 }, *e = NULL;
  93         struct berval           pdn = BER_BVNULL;
  94         int                     manageDSAit = get_manageDSAit( op );
  95         /* first parameter no */
  96         SQLUSMALLINT            pno;
  97
  98         Debug( LDAP_DEBUG_TRACE, "==>backsql_delete(): deleting entry \"%s\"\n",
  99                         op->o_req_ndn.bv_val, 0, 0 );
 100
 101         rs->sr_err = backsql_get_db_conn( op, &dbh );
 102         if ( rs->sr_err != LDAP_SUCCESS ) {
 103                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 104                         "could not get connection handle - exiting\n",
 105                         0, 0, 0 );
 106                 rs->sr_text = ( rs->sr_err == LDAP_OTHER )
 107                         ? "SQL-backend error" : NULL;
 108                 e = NULL;
 109                 goto done;
 110         }
 111
 112         /*
 113          * Get the entry
 114          */
 115         bsi.bsi_e = &d;
 116         rs->sr_err = backsql_init_search( &bsi, &op->o_req_ndn,
 117                         LDAP_SCOPE_BASE,
 118                         SLAP_NO_LIMIT, SLAP_NO_LIMIT,
 119                         (time_t)(-1), NULL, dbh, op, rs, slap_anlist_no_attrs,
 120                         ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY ) );
 121         switch ( rs->sr_err ) {
 122         case LDAP_SUCCESS:
 123                 break;
 124
 125         case LDAP_REFERRAL:
 126                 if ( manageDSAit && !BER_BVISNULL( &bsi.bsi_e->e_nname ) &&
 127                                 dn_match( &op->o_req_ndn, &bsi.bsi_e->e_nname ) )
 128                 {
 129                         rs->sr_err = LDAP_SUCCESS;
 130                         rs->sr_text = NULL;
 131                         rs->sr_matched = NULL;
 132                         if ( rs->sr_ref ) {
 133                                 ber_bvarray_free( rs->sr_ref );
 134                                 rs->sr_ref = NULL;
 135                         }
 136                         break;
 137                 }
 138                 e = &d;
 139                 /* fallthru */
 140
 141         default:
 142                 Debug( LDAP_DEBUG_TRACE, "backsql_delete(): "
 143                         "could not retrieve deleteDN ID - no such entry\n",
 144                         0, 0, 0 );
 145                 if ( !BER_BVISNULL( &d.e_nname ) ) {
 146                         /* FIXME: should always be true! */
 147                         e = &d;
 148
 149                 } else {
 150                         e = NULL;
 151                 }
 152                 goto done;
 153         }
 154
 155         if ( get_assert( op ) &&
 156                         ( test_filter( op, &d, get_assertion( op ) )
 157                           != LDAP_COMPARE_TRUE ) )
 158         {
 159                 rs->sr_err = LDAP_ASSERTION_FAILED;
 160                 e = &d;
 161                 goto done;
 162         }
 163
 164         if ( !access_allowed( op, &d, slap_schema.si_ad_entry,
 165                         NULL, ACL_WDEL, NULL ) )
 166         {
 167                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 168                         "no write access to entry\n",
 169                         0, 0, 0 );
 170                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 171                 e = &d;
 172                 goto done;
 173         }
 174
 175         rs->sr_err = backsql_has_children( bi, dbh, &op->o_req_ndn );
 176         switch ( rs->sr_err ) {
 177         case LDAP_COMPARE_FALSE:
 178                 rs->sr_err = LDAP_SUCCESS;
 179                 break;
 180
 181         case LDAP_COMPARE_TRUE:
 182                 if ( get_treeDelete( op ) ) {
 183                         /* not supported yet */ ;
 184                 }
 185                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 186                         "entry \"%s\" has children\n",
 187                         op->o_req_dn.bv_val, 0, 0 );
 188                 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 189                 rs->sr_text = "subordinate objects must be deleted first";
 190                 /* fallthru */
 191
 192         default:
 193                 e = &d;
 194                 goto done;
 195         }
 196
 197         oc = backsql_id2oc( bi, bsi.bsi_base_id.eid_oc_id );
 198         if ( oc == NULL ) {
 199                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 200                         "cannot determine objectclass of entry -- aborting\n",
 201                         0, 0, 0 );
 202                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 203                 rs->sr_text = "operation not permitted within namingContext";
 204                 e = NULL;
 205                 goto done;
 206         }
 207
 208         if ( oc->bom_delete_proc == NULL ) {
 209                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 210                         "delete procedure is not defined "
 211                         "for this objectclass - aborting\n", 0, 0, 0 );
 212                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 213                 rs->sr_text = "operation not permitted within namingContext";
 214                 e = NULL;
 215                 goto done;
 216         }
 217
 218         /*
 219          * Get the parent
 220          */
 221         dnParent( &op->o_req_ndn, &pdn );
 222         bsi.bsi_e = &p;
 223         e_id = bsi.bsi_base_id;
 224         rs->sr_err = backsql_init_search( &bsi, &pdn,
 225                         LDAP_SCOPE_BASE,
 226                         SLAP_NO_LIMIT, SLAP_NO_LIMIT,
 227                         (time_t)(-1), NULL, dbh, op, rs, slap_anlist_no_attrs,
 228                         BACKSQL_ISF_GET_ENTRY );
 229         if ( rs->sr_err != LDAP_SUCCESS ) {
 230                 Debug( LDAP_DEBUG_TRACE, "backsql_delete(): "
 231                         "could not retrieve deleteDN ID - no such entry\n",
 232                         0, 0, 0 );
 233                 e = &p;
 234                 goto done;
 235         }
 236
 237         (void)backsql_free_entryID( op, &bsi.bsi_base_id, 0 );
 238
 239         /* check parent for "children" acl */
 240         if ( !access_allowed( op, &p, slap_schema.si_ad_children,
 241                         NULL, ACL_WDEL, NULL ) )
 242         {
 243                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 244                         "no write access to parent\n",
 245                         0, 0, 0 );
 246                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 247                 e = &p;
 248                 goto done;
 249
 250         }
 251
 252         /* avl_apply ... */
 253         rs->sr_err = backsql_delete_all_attrs( op, rs, dbh, &e_id, oc );
 254         if ( rs->sr_err != LDAP_SUCCESS ) {
 255                 e = &d;
 256                 goto done;
 257         }
 258
 259         rc = backsql_Prepare( dbh, &sth, oc->bom_delete_proc, 0 );
 260         if ( rc != SQL_SUCCESS ) {
 261                 Debug( LDAP_DEBUG_TRACE,
 262                         "   backsql_delete(): "
 263                         "error preparing delete query\n",
 264                         0, 0, 0 );
 265                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 266
 267                 rs->sr_err = LDAP_OTHER;
 268                 rs->sr_text = "SQL-backend error";
 269                 e = NULL;
 270                 goto done;
 271         }
 272
 273         if ( BACKSQL_IS_DEL( oc->bom_expect_return ) ) {
 274                 pno = 1;
 275                 rc = backsql_BindParamInt( sth, 1, SQL_PARAM_OUTPUT, &prc );
 276                 if ( rc != SQL_SUCCESS ) {
 277                         Debug( LDAP_DEBUG_TRACE,
 278                                 "   backsql_delete(): "
 279                                 "error binding output parameter for objectClass %s\n",
 280                                 oc->bom_oc->soc_cname.bv_val, 0, 0 );
 281                         backsql_PrintErrors( bi->sql_db_env, dbh,
 282                                 sth, rc );
 283                         SQLFreeStmt( sth, SQL_DROP );
 284
 285                         rs->sr_text = "SQL-backend error";
 286                         rs->sr_err = LDAP_OTHER;
 287                         e = NULL;
 288                         goto done;
 289                 }
 290
 291         } else {
 292                 pno = 0;
 293         }
 294
 295         rc = backsql_BindParamID( sth, pno + 1, SQL_PARAM_INPUT, &e_id.eid_keyval );
 296         if ( rc != SQL_SUCCESS ) {
 297                 Debug( LDAP_DEBUG_TRACE,
 298                         "   backsql_delete(): "
 299                         "error binding keyval parameter for objectClass %s\n",
 300                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 301                 backsql_PrintErrors( bi->sql_db_env, dbh,
 302                         sth, rc );
 303                 SQLFreeStmt( sth, SQL_DROP );
 304
 305                 rs->sr_text = "SQL-backend error";
 306                 rs->sr_err = LDAP_OTHER;
 307                 e = NULL;
 308                 goto done;
 309         }
 310
 311         rc = SQLExecute( sth );
 312         if ( rc == SQL_SUCCESS && prc == LDAP_SUCCESS ) {
 313                 rs->sr_err = LDAP_SUCCESS;
 314
 315         } else {
 316                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 317                         "delete_proc execution failed (rc=%d, prc=%d)\n",
 318                         rc, prc, 0 );
 319
 320
 321                 if ( prc != LDAP_SUCCESS ) {
 322                         /* SQL procedure executed fine
 323                          * but returned an error */
 324                         rs->sr_err = BACKSQL_SANITIZE_ERROR( prc );
 325
 326                 } else {
 327                         backsql_PrintErrors( bi->sql_db_env, dbh,
 328                                         sth, rc );
 329                         rs->sr_err = LDAP_OTHER;
 330                 }
 331                 SQLFreeStmt( sth, SQL_DROP );
 332                 e = &d;
 333                 goto done;
 334         }
 335         SQLFreeStmt( sth, SQL_DROP );
 336
 337         /* delete "auxiliary" objectClasses, if any... */
 338         rc = backsql_Prepare( dbh, &sth, bi->sql_delobjclasses_stmt, 0 );
 339         if ( rc != SQL_SUCCESS ) {
 340                 Debug( LDAP_DEBUG_TRACE,
 341                         "   backsql_delete(): "
 342                         "error preparing ldap_entry_objclasses delete query\n",
 343                         0, 0, 0 );
 344                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 345
 346                 rs->sr_err = LDAP_OTHER;
 347                 rs->sr_text = "SQL-backend error";
 348                 e = NULL;
 349                 goto done;
 350         }
 351
 352         rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT, &e_id.eid_id );
 353         if ( rc != SQL_SUCCESS ) {
 354                 Debug( LDAP_DEBUG_TRACE,
 355                         "   backsql_delete(): "
 356                         "error binding auxiliary objectClasses "
 357                         "entry ID parameter for objectClass %s\n",
 358                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 359                 backsql_PrintErrors( bi->sql_db_env, dbh,
 360                         sth, rc );
 361                 SQLFreeStmt( sth, SQL_DROP );
 362
 363                 rs->sr_text = "SQL-backend error";
 364                 rs->sr_err = LDAP_OTHER;
 365                 e = NULL;
 366                 goto done;
 367         }
 368
 369         rc = SQLExecute( sth );
 370         switch ( rc ) {
 371         case SQL_NO_DATA:
 372                 /* apparently there were no "auxiliary" objectClasses
 373                  * for this entry... */
 374         case SQL_SUCCESS:
 375                 break;
 376
 377         default:
 378                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 379                         "failed to delete record from ldap_entry_objclasses\n",
 380                         0, 0, 0 );
 381                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 382                 SQLFreeStmt( sth, SQL_DROP );
 383                 rs->sr_err = LDAP_OTHER;
 384                 rs->sr_text = "SQL-backend error";
 385                 e = NULL;
 386                 goto done;
 387         }
 388         SQLFreeStmt( sth, SQL_DROP );
 389
 390         /* delete entry... */
 391         rc = backsql_Prepare( dbh, &sth, bi->sql_delentry_stmt, 0 );
 392         if ( rc != SQL_SUCCESS ) {
 393                 Debug( LDAP_DEBUG_TRACE,
 394                         "   backsql_delete(): "
 395                         "error preparing ldap_entries delete query\n",
 396                         0, 0, 0 );
 397                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 398
 399                 rs->sr_err = LDAP_OTHER;
 400                 rs->sr_text = "SQL-backend error";
 401                 e = NULL;
 402                 goto done;
 403         }
 404
 405         rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT, &e_id.eid_id );
 406         if ( rc != SQL_SUCCESS ) {
 407                 Debug( LDAP_DEBUG_TRACE,
 408                         "   backsql_delete(): "
 409                         "error binding entry ID parameter "
 410                         "for objectClass %s\n",
 411                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 412                 backsql_PrintErrors( bi->sql_db_env, dbh,
 413                         sth, rc );
 414                 SQLFreeStmt( sth, SQL_DROP );
 415
 416                 rs->sr_text = "SQL-backend error";
 417                 rs->sr_err = LDAP_OTHER;
 418                 e = NULL;
 419                 goto done;
 420         }
 421
 422         rc = SQLExecute( sth );
 423         if ( rc != SQL_SUCCESS ) {
 424                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 425                         "failed to delete record from ldap_entries\n",
 426                         0, 0, 0 );
 427                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 428                 SQLFreeStmt( sth, SQL_DROP );
 429                 rs->sr_err = LDAP_OTHER;
 430                 rs->sr_text = "SQL-backend error";
 431                 e = NULL;
 432                 goto done;
 433         }
 434         SQLFreeStmt( sth, SQL_DROP );
 435
 436         rs->sr_err = LDAP_SUCCESS;
 437
 438         /*
 439          * Commit only if all operations succeed
 440          */
 441         if ( sth != SQL_NULL_HSTMT ) {
 442                 SQLUSMALLINT    CompletionType = SQL_ROLLBACK;
 443
 444                 if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop ) {
 445                         CompletionType = SQL_COMMIT;
 446                 }
 447
 448                 SQLTransact( SQL_NULL_HENV, dbh, CompletionType );
 449         }
 450
 451 done:;
 452 #ifdef SLAP_ACL_HONOR_DISCLOSE
 453         if ( e != NULL ) {
 454                 if ( !access_allowed( op, e, slap_schema.si_ad_entry, NULL,
 455                                         ACL_DISCLOSE, NULL ) )
 456                 {
 457                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 458                         rs->sr_text = NULL;
 459                         rs->sr_matched = NULL;
 460                         if ( rs->sr_ref ) {
 461                                 ber_bvarray_free( rs->sr_ref );
 462                                 rs->sr_ref = NULL;
 463                         }
 464                 }
 465         }
 466 #endif /* SLAP_ACL_HONOR_DISCLOSE */
 467
 468         send_ldap_result( op, rs );
 469
 470         Debug( LDAP_DEBUG_TRACE, "<==backsql_delete()\n", 0, 0, 0 );
 471
 472         if ( !BER_BVISNULL( &e_id.eid_ndn ) ) {
 473                 (void)backsql_free_entryID( op, &e_id, 0 );
 474         }
 475
 476         if ( !BER_BVISNULL( &d.e_nname ) ) {
 477                 backsql_entry_clean( op, &d );
 478         }
 479
 480         if ( !BER_BVISNULL( &p.e_nname ) ) {
 481                 backsql_entry_clean( op, &p );
 482         }
 483
 484         return rs->sr_err;
 485 }
 486