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 = 0;
  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                         (time_t)(-1), NULL, dbh, op, rs, slap_anlist_no_attrs,
 119                         ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY ) );
 120         switch ( rs->sr_err ) {
 121         case LDAP_SUCCESS:
 122                 break;
 123
 124         case LDAP_REFERRAL:
 125                 if ( manageDSAit && !BER_BVISNULL( &bsi.bsi_e->e_nname ) &&
 126                                 dn_match( &op->o_req_ndn, &bsi.bsi_e->e_nname ) )
 127                 {
 128                         rs->sr_err = LDAP_SUCCESS;
 129                         rs->sr_text = NULL;
 130                         rs->sr_matched = NULL;
 131                         if ( rs->sr_ref ) {
 132                                 ber_bvarray_free( rs->sr_ref );
 133                                 rs->sr_ref = NULL;
 134                         }
 135                         break;
 136                 }
 137                 e = &d;
 138                 /* fallthru */
 139
 140         default:
 141                 Debug( LDAP_DEBUG_TRACE, "backsql_delete(): "
 142                         "could not retrieve deleteDN ID - no such entry\n",
 143                         0, 0, 0 );
 144                 if ( !BER_BVISNULL( &d.e_nname ) ) {
 145                         /* FIXME: should always be true! */
 146                         e = &d;
 147
 148                 } else {
 149                         e = NULL;
 150                 }
 151                 goto done;
 152         }
 153
 154         if ( get_assert( op ) &&
 155                         ( test_filter( op, &d, get_assertion( op ) )
 156                           != LDAP_COMPARE_TRUE ) )
 157         {
 158                 rs->sr_err = LDAP_ASSERTION_FAILED;
 159                 e = &d;
 160                 goto done;
 161         }
 162
 163         if ( !access_allowed( op, &d, slap_schema.si_ad_entry,
 164                         NULL, ACL_WDEL, NULL ) )
 165         {
 166                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 167                         "no write access to entry\n",
 168                         0, 0, 0 );
 169                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 170                 e = &d;
 171                 goto done;
 172         }
 173
 174         rs->sr_err = backsql_has_children( op, dbh, &op->o_req_ndn );
 175         switch ( rs->sr_err ) {
 176         case LDAP_COMPARE_FALSE:
 177                 rs->sr_err = LDAP_SUCCESS;
 178                 break;
 179
 180         case LDAP_COMPARE_TRUE:
 181                 if ( get_treeDelete( op ) ) {
 182                         /* not supported yet */ ;
 183                 }
 184                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 185                         "entry \"%s\" has children\n",
 186                         op->o_req_dn.bv_val, 0, 0 );
 187                 rs->sr_err = LDAP_NOT_ALLOWED_ON_NONLEAF;
 188                 rs->sr_text = "subordinate objects must be deleted first";
 189                 /* fallthru */
 190
 191         default:
 192                 e = &d;
 193                 goto done;
 194         }
 195
 196         oc = backsql_id2oc( bi, bsi.bsi_base_id.eid_oc_id );
 197         if ( oc == NULL ) {
 198                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 199                         "cannot determine objectclass of entry -- aborting\n",
 200                         0, 0, 0 );
 201                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 202                 rs->sr_text = "operation not permitted within namingContext";
 203                 e = NULL;
 204                 goto done;
 205         }
 206
 207         if ( oc->bom_delete_proc == NULL ) {
 208                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 209                         "delete procedure is not defined "
 210                         "for this objectclass - aborting\n", 0, 0, 0 );
 211                 rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
 212                 rs->sr_text = "operation not permitted within namingContext";
 213                 e = NULL;
 214                 goto done;
 215         }
 216
 217         /*
 218          * Get the parent
 219          */
 220         dnParent( &op->o_req_ndn, &pdn );
 221         bsi.bsi_e = &p;
 222         e_id = bsi.bsi_base_id;
 223         rs->sr_err = backsql_init_search( &bsi, &pdn,
 224                         LDAP_SCOPE_BASE,
 225                         (time_t)(-1), NULL, dbh, op, rs, slap_anlist_no_attrs,
 226                         BACKSQL_ISF_GET_ENTRY );
 227         if ( rs->sr_err != LDAP_SUCCESS ) {
 228                 Debug( LDAP_DEBUG_TRACE, "backsql_delete(): "
 229                         "could not retrieve deleteDN ID - no such entry\n",
 230                         0, 0, 0 );
 231                 e = &p;
 232                 goto done;
 233         }
 234
 235         (void)backsql_free_entryID( op, &bsi.bsi_base_id, 0 );
 236
 237         /* check parent for "children" acl */
 238         if ( !access_allowed( op, &p, slap_schema.si_ad_children,
 239                         NULL, ACL_WDEL, NULL ) )
 240         {
 241                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 242                         "no write access to parent\n",
 243                         0, 0, 0 );
 244                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
 245                 e = &p;
 246                 goto done;
 247
 248         }
 249
 250         /* avl_apply ... */
 251         rs->sr_err = backsql_delete_all_attrs( op, rs, dbh, &e_id, oc );
 252         if ( rs->sr_err != LDAP_SUCCESS ) {
 253                 e = &d;
 254                 goto done;
 255         }
 256
 257         rc = backsql_Prepare( dbh, &sth, oc->bom_delete_proc, 0 );
 258         if ( rc != SQL_SUCCESS ) {
 259                 Debug( LDAP_DEBUG_TRACE,
 260                         "   backsql_delete(): "
 261                         "error preparing delete query\n",
 262                         0, 0, 0 );
 263                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 264
 265                 rs->sr_err = LDAP_OTHER;
 266                 rs->sr_text = "SQL-backend error";
 267                 e = NULL;
 268                 goto done;
 269         }
 270
 271         if ( BACKSQL_IS_DEL( oc->bom_expect_return ) ) {
 272                 pno = 1;
 273                 rc = backsql_BindParamInt( sth, 1, SQL_PARAM_OUTPUT, &prc );
 274                 if ( rc != SQL_SUCCESS ) {
 275                         Debug( LDAP_DEBUG_TRACE,
 276                                 "   backsql_delete(): "
 277                                 "error binding output parameter for objectClass %s\n",
 278                                 oc->bom_oc->soc_cname.bv_val, 0, 0 );
 279                         backsql_PrintErrors( bi->sql_db_env, dbh,
 280                                 sth, rc );
 281                         SQLFreeStmt( sth, SQL_DROP );
 282
 283                         rs->sr_text = "SQL-backend error";
 284                         rs->sr_err = LDAP_OTHER;
 285                         e = NULL;
 286                         goto done;
 287                 }
 288         }
 289
 290         rc = backsql_BindParamID( sth, pno + 1, SQL_PARAM_INPUT, &e_id.eid_keyval );
 291         if ( rc != SQL_SUCCESS ) {
 292                 Debug( LDAP_DEBUG_TRACE,
 293                         "   backsql_delete(): "
 294                         "error binding keyval parameter for objectClass %s\n",
 295                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 296                 backsql_PrintErrors( bi->sql_db_env, dbh,
 297                         sth, rc );
 298                 SQLFreeStmt( sth, SQL_DROP );
 299
 300                 rs->sr_text = "SQL-backend error";
 301                 rs->sr_err = LDAP_OTHER;
 302                 e = NULL;
 303                 goto done;
 304         }
 305
 306         rc = SQLExecute( sth );
 307         if ( rc == SQL_SUCCESS && prc == LDAP_SUCCESS ) {
 308                 rs->sr_err = LDAP_SUCCESS;
 309
 310         } else {
 311                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 312                         "delete_proc execution failed (rc=%d, prc=%d)\n",
 313                         rc, prc, 0 );
 314
 315
 316                 if ( prc != LDAP_SUCCESS ) {
 317                         /* SQL procedure executed fine
 318                          * but returned an error */
 319                         rs->sr_err = BACKSQL_SANITIZE_ERROR( prc );
 320
 321                 } else {
 322                         backsql_PrintErrors( bi->sql_db_env, dbh,
 323                                         sth, rc );
 324                         rs->sr_err = LDAP_OTHER;
 325                 }
 326                 SQLFreeStmt( sth, SQL_DROP );
 327                 e = &d;
 328                 goto done;
 329         }
 330         SQLFreeStmt( sth, SQL_DROP );
 331
 332         /* delete "auxiliary" objectClasses, if any... */
 333         rc = backsql_Prepare( dbh, &sth, bi->sql_delobjclasses_stmt, 0 );
 334         if ( rc != SQL_SUCCESS ) {
 335                 Debug( LDAP_DEBUG_TRACE,
 336                         "   backsql_delete(): "
 337                         "error preparing ldap_entry_objclasses delete query\n",
 338                         0, 0, 0 );
 339                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 340
 341                 rs->sr_err = LDAP_OTHER;
 342                 rs->sr_text = "SQL-backend error";
 343                 e = NULL;
 344                 goto done;
 345         }
 346
 347         rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT, &e_id.eid_id );
 348         if ( rc != SQL_SUCCESS ) {
 349                 Debug( LDAP_DEBUG_TRACE,
 350                         "   backsql_delete(): "
 351                         "error binding auxiliary objectClasses "
 352                         "entry ID parameter for objectClass %s\n",
 353                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 354                 backsql_PrintErrors( bi->sql_db_env, dbh,
 355                         sth, rc );
 356                 SQLFreeStmt( sth, SQL_DROP );
 357
 358                 rs->sr_text = "SQL-backend error";
 359                 rs->sr_err = LDAP_OTHER;
 360                 e = NULL;
 361                 goto done;
 362         }
 363
 364         rc = SQLExecute( sth );
 365         switch ( rc ) {
 366         case SQL_NO_DATA:
 367                 /* apparently there were no "auxiliary" objectClasses
 368                  * for this entry... */
 369         case SQL_SUCCESS:
 370                 break;
 371
 372         default:
 373                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 374                         "failed to delete record from ldap_entry_objclasses\n",
 375                         0, 0, 0 );
 376                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 377                 SQLFreeStmt( sth, SQL_DROP );
 378                 rs->sr_err = LDAP_OTHER;
 379                 rs->sr_text = "SQL-backend error";
 380                 e = NULL;
 381                 goto done;
 382         }
 383         SQLFreeStmt( sth, SQL_DROP );
 384
 385         /* delete entry... */
 386         rc = backsql_Prepare( dbh, &sth, bi->sql_delentry_stmt, 0 );
 387         if ( rc != SQL_SUCCESS ) {
 388                 Debug( LDAP_DEBUG_TRACE,
 389                         "   backsql_delete(): "
 390                         "error preparing ldap_entries delete query\n",
 391                         0, 0, 0 );
 392                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 393
 394                 rs->sr_err = LDAP_OTHER;
 395                 rs->sr_text = "SQL-backend error";
 396                 e = NULL;
 397                 goto done;
 398         }
 399
 400         rc = backsql_BindParamID( sth, 1, SQL_PARAM_INPUT, &e_id.eid_id );
 401         if ( rc != SQL_SUCCESS ) {
 402                 Debug( LDAP_DEBUG_TRACE,
 403                         "   backsql_delete(): "
 404                         "error binding entry ID parameter "
 405                         "for objectClass %s\n",
 406                         oc->bom_oc->soc_cname.bv_val, 0, 0 );
 407                 backsql_PrintErrors( bi->sql_db_env, dbh,
 408                         sth, rc );
 409                 SQLFreeStmt( sth, SQL_DROP );
 410
 411                 rs->sr_text = "SQL-backend error";
 412                 rs->sr_err = LDAP_OTHER;
 413                 e = NULL;
 414                 goto done;
 415         }
 416
 417         rc = SQLExecute( sth );
 418         if ( rc != SQL_SUCCESS ) {
 419                 Debug( LDAP_DEBUG_TRACE, "   backsql_delete(): "
 420                         "failed to delete record from ldap_entries\n",
 421                         0, 0, 0 );
 422                 backsql_PrintErrors( bi->sql_db_env, dbh, sth, rc );
 423                 SQLFreeStmt( sth, SQL_DROP );
 424                 rs->sr_err = LDAP_OTHER;
 425                 rs->sr_text = "SQL-backend error";
 426                 e = NULL;
 427                 goto done;
 428         }
 429         SQLFreeStmt( sth, SQL_DROP );
 430
 431         rs->sr_err = LDAP_SUCCESS;
 432
 433         /*
 434          * Commit only if all operations succeed
 435          */
 436         if ( sth != SQL_NULL_HSTMT ) {
 437                 SQLUSMALLINT    CompletionType = SQL_ROLLBACK;
 438
 439                 if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop ) {
 440                         CompletionType = SQL_COMMIT;
 441                 }
 442
 443                 SQLTransact( SQL_NULL_HENV, dbh, CompletionType );
 444         }
 445
 446 done:;
 447 #ifdef SLAP_ACL_HONOR_DISCLOSE
 448         if ( e != NULL ) {
 449                 if ( !access_allowed( op, e, slap_schema.si_ad_entry, NULL,
 450                                         ACL_DISCLOSE, NULL ) )
 451                 {
 452                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
 453                         rs->sr_text = NULL;
 454                         rs->sr_matched = NULL;
 455                         if ( rs->sr_ref ) {
 456                                 ber_bvarray_free( rs->sr_ref );
 457                                 rs->sr_ref = NULL;
 458                         }
 459                 }
 460         }
 461 #endif /* SLAP_ACL_HONOR_DISCLOSE */
 462
 463         send_ldap_result( op, rs );
 464
 465         Debug( LDAP_DEBUG_TRACE, "<==backsql_delete()\n", 0, 0, 0 );
 466
 467         if ( !BER_BVISNULL( &e_id.eid_ndn ) ) {
 468                 (void)backsql_free_entryID( op, &e_id, 0 );
 469         }
 470
 471         if ( !BER_BVISNULL( &d.e_nname ) ) {
 472                 backsql_entry_clean( op, &d );
 473         }
 474
 475         if ( !BER_BVISNULL( &p.e_nname ) ) {
 476                 backsql_entry_clean( op, &p );
 477         }
 478
 479         return rs->sr_err;
 480 }
 481