2 * Copyright 1999, Dmitry Kovalev <mit@openldap.org>, All rights reserved.
4 * Redistribution and use in source and binary forms are permitted only
5 * as authorized by the OpenLDAP Public License. A copy of this
6 * license is available at http://www.OpenLDAP.org/license.html or
7 * in file LICENSE in the top-level directory of the distribution.
15 #include <sys/types.h>
20 #include "schema-map.h"
24 int backsql_attrlist_add(backsql_srch_info *bsi,char *at_name)
34 Debug(LDAP_DEBUG_TRACE,"==>backsql_attrlist_add(): attribute '%s' is in list\n",*p,0,0);
35 if (!strcasecmp(*p,at_name))
40 Debug(LDAP_DEBUG_TRACE,"==>backsql_attrlist_add(): adding '%s' to list\n",at_name,0,0);
41 bsi->attrs=(char**)ch_realloc(bsi->attrs,(n_attrs+2)*sizeof(char*));
42 bsi->attrs[n_attrs]=ch_strdup(at_name);
43 bsi->attrs[n_attrs+1]=NULL;
47 void backsql_init_search(backsql_srch_info *bsi,backsql_info *bi,char *nbase,int scope,
48 int slimit,int tlimit,time_t stoptime,Filter *filter,
49 SQLHDBC dbh,BackendDB *be,Connection *conn,Operation *op,char **attrs)
63 bsi->attrs=(char**)ch_calloc(1,sizeof(char*));
65 for(p=attrs;*p!=NULL;p++)
66 backsql_attrlist_add(bsi,*p);
72 bsi->stoptime=stoptime;
74 bsi->sel=NULL; bsi->from=NULL; bsi->join_where=NULL; bsi->flt_where=NULL;
75 bsi->sel_len=0; bsi->from_len=0; bsi->jwhere_len=0; bsi->fwhere_len=0;
78 int backsql_process_filter_list(backsql_srch_info *bsi,Filter *f,int op)
80 char *sub_clause=NULL;
85 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"(",NULL);
88 res=backsql_process_filter(bsi,f);
97 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len," AND ",NULL);
100 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len," OR ",NULL);
106 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,")",NULL);
110 int backsql_process_sub_filter(backsql_srch_info *bsi,Filter *f)
113 backsql_at_map_rec *at=backsql_at_with_name(bsi->oc,f->f_sub_desc->ad_cname->bv_val);
118 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"(",NULL);
120 if (bsi->bi->upper_func)
122 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,
123 bsi->bi->upper_func,"(",at->sel_expr,")",
128 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,at->sel_expr,
131 if (f->f_sub_initial!=NULL)
133 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,f->f_sub_initial->bv_val,NULL);
136 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"%",NULL);
138 if (f->f_sub_any!=NULL)
139 for(i=0;f->f_sub_any[i]!=NULL;i++)
141 //Debug(LDAP_DEBUG_TRACE,"==>backsql_process_sub_filter(): sub_any='%s'\n",f->f_sub_any[i]->bv_val,0,0);
142 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,f->f_sub_any[i]->bv_val,"%",NULL);
145 if (f->f_sub_final!=NULL)
146 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,f->f_sub_final->bv_val,NULL);
148 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"')",NULL);
153 int backsql_process_filter(backsql_srch_info *bsi,Filter *f)
155 backsql_at_map_rec *at;
156 backsql_at_map_rec oc_attr={"objectClass","","",NULL,NULL,NULL,NULL};
160 Debug(LDAP_DEBUG_TRACE,"==>backsql_process_filter()\n",0,0,0);
169 backsql_process_filter_list(bsi,f->f_or,LDAP_FILTER_OR);
172 case LDAP_FILTER_AND:
173 backsql_process_filter_list(bsi,f->f_and,LDAP_FILTER_AND);
176 case LDAP_FILTER_NOT:
177 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"NOT (",NULL);
178 backsql_process_filter(bsi,f->f_not);
179 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,")",NULL);
182 case LDAP_FILTER_PRESENT:
183 at_name=f->f_desc->ad_cname->bv_val;
186 at_name=f->f_av_desc->ad_cname->bv_val;
193 if (strcasecmp(at_name,"objectclass"))
194 at=backsql_at_with_name(bsi->oc,at_name);
198 at->sel_expr=backsql_strcat(at->sel_expr,&len,"'",bsi->oc->name,"'",NULL);
202 Debug(LDAP_DEBUG_TRACE,"backsql_process_filter(): attribute '%s' is not defined for objectclass '%s'\n",
203 at_name,bsi->oc->name,0);
204 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len," 1=0 ",NULL);
208 backsql_merge_from_clause(&bsi->from,&bsi->from_len,at->from_tbls);
209 //need to add this attribute to list of attrs to load, so that we could do test_filter() later
210 backsql_attrlist_add(bsi,at_name);
212 if (at->join_where != NULL && strstr(bsi->join_where,at->join_where)==NULL)
213 bsi->join_where=backsql_strcat(bsi->join_where,&bsi->jwhere_len," AND ",at->join_where,NULL);
216 // bsi->sel=backsql_strcat(bsi->sel,&bsi->sel_len,",",at->sel_expr," AS ",at->name,NULL);
220 case LDAP_FILTER_EQUALITY:
221 //maybe we should check type of at->sel_expr here somehow,
222 //to know whether upper_func is applicable, but for now
223 //upper_func stuff is made for Oracle, where UPPER is
224 //safely applicable to NUMBER etc.
225 if (bsi->bi->upper_func)
226 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"(",
227 bsi->bi->upper_func,"(",at->sel_expr,")='",
228 f->f_av_value->bv_val,"')",NULL);
230 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"(",at->sel_expr,"='",
231 f->f_av_value->bv_val,"')",NULL);
235 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"(",at->sel_expr,">=",
236 f->f_av_value->bv_val,")",NULL);
240 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"(",at->sel_expr,"<=",
241 f->f_av_value->bv_val,")",NULL);
243 case LDAP_FILTER_PRESENT:
244 bsi->flt_where=backsql_strcat(bsi->flt_where,&bsi->fwhere_len,"NOT (",at->sel_expr,
247 case LDAP_FILTER_SUBSTRINGS:
248 backsql_process_sub_filter(bsi,f);
253 if (oc_attr.sel_expr!=NULL)
254 free(oc_attr.sel_expr);
255 Debug(LDAP_DEBUG_TRACE,"<==backsql_process_filter()\n",0,0,0);
259 char* backsql_srch_query(backsql_srch_info *bsi)
264 Debug(LDAP_DEBUG_TRACE,"==>backsql_srch_query()\n",0,0,0);
267 bsi->join_where=NULL;
269 bsi->sel_len=bsi->from_len=bsi->jwhere_len=bsi->fwhere_len=0;
271 bsi->sel=backsql_strcat(bsi->sel,&bsi->sel_len,
272 "SELECT ldap_entries.id,",bsi->oc->keytbl,".",bsi->oc->keycol,
273 ", '",bsi->oc->name,"' AS objectClass",
274 ", ldap_entries.dn AS dn",
276 bsi->from=backsql_strcat(bsi->from,&bsi->from_len," FROM ldap_entries,",bsi->oc->keytbl,NULL);
277 bsi->join_where=backsql_strcat(bsi->join_where,&bsi->jwhere_len," WHERE ",
278 bsi->oc->keytbl,".",bsi->oc->keycol,"=ldap_entries.keyval AND ",
279 "ldap_entries.oc_map_id=? AND ",NULL);
283 case LDAP_SCOPE_BASE:
284 if (bsi->bi->upper_func)
286 bsi->join_where=backsql_strcat(bsi->join_where,&bsi->jwhere_len,
287 bsi->bi->upper_func,"(","ldap_entries.dn)=(?)",NULL);
291 bsi->join_where=backsql_strcat(bsi->join_where,&bsi->jwhere_len,
292 "ldap_entries.dn=?",NULL);
295 case LDAP_SCOPE_ONELEVEL:
296 bsi->join_where=backsql_strcat(bsi->join_where,&bsi->jwhere_len,
297 "ldap_entries.parent=?",NULL);
299 case LDAP_SCOPE_SUBTREE:
300 bsi->join_where=backsql_strcat(bsi->join_where,&bsi->jwhere_len,
301 bsi->bi->subtree_cond,NULL);
304 if (backsql_process_filter(bsi,bsi->filter))
305 query=backsql_strcat(query,&q_len,bsi->sel,bsi->from,bsi->join_where," AND ",bsi->flt_where,NULL);
310 free(bsi->join_where);
311 free(bsi->flt_where);
312 bsi->sel_len=bsi->from_len=bsi->jwhere_len=bsi->fwhere_len=0;
313 Debug(LDAP_DEBUG_TRACE,"<==backsql_srch_query()\n",0,0,0);
317 int backsql_oc_get_candidates(backsql_oc_map_rec *oc,backsql_srch_info *bsi)
322 backsql_entryID base_id,*res,*c_id;
327 Debug(LDAP_DEBUG_TRACE,"==>backsql_oc_get_candidates(): oc='%s'\n",oc->name,0,0);
329 query=backsql_srch_query(bsi);
332 Debug(LDAP_DEBUG_TRACE,"backsql_oc_get_candidates(): could not construct query for objectclass\n",0,0,0);
336 Debug(LDAP_DEBUG_TRACE,"Constructed query: %s\n",query,0,0);
337 if ((rc=backsql_Prepare(bsi->dbh,&sth,query,0)) != SQL_SUCCESS)
339 Debug(LDAP_DEBUG_TRACE,"backsql_oc_get_candidates(): error preparing query\n",0,0,0);
340 backsql_PrintErrors(bsi->bi->db_env,bsi->dbh,sth,rc);
346 if (backsql_BindParamID(sth,1,&bsi->oc->id) != SQL_SUCCESS)
348 Debug(LDAP_DEBUG_TRACE,"backsql_oc_get_candidates(): error binding objectclass id parameter\n",0,0,0);
353 case LDAP_SCOPE_BASE:
354 case LDAP_SCOPE_SUBTREE:
355 if ((rc=backsql_BindParamStr(sth,2,bsi->base_dn,BACKSQL_MAX_DN_LEN)) != SQL_SUCCESS)
357 Debug(LDAP_DEBUG_TRACE,"backsql_oc_get_candidates(): error binding base_dn parameter\n",0,0,0);
358 backsql_PrintErrors(bsi->bi->db_env,bsi->dbh,sth,rc);
362 case LDAP_SCOPE_ONELEVEL:
363 res=backsql_dn2id(bsi->bi,&base_id,bsi->dbh,bsi->base_dn);
366 Debug(LDAP_DEBUG_TRACE,"backsql_oc_get_candidates(): could not retrieve base_dn id - no such entry\n",0,0,0);
367 bsi->status=LDAP_NO_SUCH_OBJECT;
370 if (backsql_BindParamID(sth,2,&base_id.id) != SQL_SUCCESS)
372 Debug(LDAP_DEBUG_TRACE,"backsql_oc_get_candidates(): error binding base id parameter\n",0,0,0);
380 if ((rc=SQLExecute(sth)) != SQL_SUCCESS && rc!= SQL_SUCCESS_WITH_INFO)
382 Debug(LDAP_DEBUG_TRACE,"backsql_oc_get_candidates(): error executing query\n",0,0,0);
383 backsql_PrintErrors(bsi->bi->db_env,bsi->dbh,sth,rc);
384 SQLFreeStmt(sth,SQL_DROP);
388 backsql_BindRowAsStrings(sth,&row);
389 while ((rc=SQLFetch(sth)) == SQL_SUCCESS || rc==SQL_SUCCESS_WITH_INFO)
392 e=(Entry*)ch_calloc(1,sizeof(Entry));
393 for (i=1;i<row.ncols;i++)
395 if (row.is_null[i]>0)
397 backsql_entry_addattr(e,row.col_names[i],row.cols[i],row.col_prec[i]);
398 // Debug(LDAP_DEBUG_TRACE,"prec=%d\n",(int)row.col_prec[i],0,0);
401 // Debug(LDAP_DEBUG_TRACE,"NULL value in this row for attribute '%s'\n",row.col_names[i],0,0);
405 c_id=(backsql_entryID*)ch_calloc(1,sizeof(backsql_entryID));
406 c_id->id=atoi(row.cols[0]);
407 c_id->keyval=atoi(row.cols[1]);
408 c_id->oc_id=bsi->oc->id;
409 c_id->dn=ch_strdup(row.cols[3]);
410 c_id->next=bsi->id_list;
412 Debug(LDAP_DEBUG_TRACE,"backsql_oc_get_candidates(): added entry id=%d, keyval=%d dn='%s'\n",
413 c_id->id,c_id->keyval,row.cols[3]);
415 backsql_FreeRow(&row);
416 SQLFreeStmt(sth,SQL_DROP);
417 Debug(LDAP_DEBUG_TRACE,"<==backsql_oc_get_candidates()\n",0,0,0);
421 int backsql_search(BackendDB *be,Connection *conn,Operation *op,
422 const char *base, const char *nbase, int scope,int deref,int slimit,int tlimit,
423 Filter *filter, const char *filterstr,char **attrs,int attrsonly)
425 backsql_info *bi=(backsql_info*)be->be_private;
430 int manageDSAit = get_manageDSAit( op );
431 struct berval **v2refs = NULL;
433 backsql_srch_info srch_info;
434 backsql_entryID *eid=NULL;
436 Debug(LDAP_DEBUG_TRACE,"==>backsql_search(): base='%s', filter='%s', scope=%d,",
437 nbase,filterstr,scope);
438 Debug(LDAP_DEBUG_TRACE," deref=%d, attrsonly=%d, attributes to load: %s\n",
439 deref,attrsonly,attrs==NULL?"all":"custom list");
440 dbh=backsql_get_db_conn(be,conn);
444 Debug(LDAP_DEBUG_TRACE,"backsql_search(): could not get connection handle - exiting\n",0,0,0);
445 send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
449 if (tlimit == 0 && be_isroot(be,op->o_dn))
451 tlimit = -1; /* allow root to set no limit */
455 tlimit = (tlimit > be->be_timelimit || tlimit < 1) ?
456 be->be_timelimit : tlimit;
457 stoptime = op->o_time + tlimit;
460 if (slimit == 0 && be_isroot(be,op->o_dn))
462 slimit = -1; /* allow root to set no limit */
466 slimit = (slimit > be->be_sizelimit || slimit < 1) ?
467 be->be_sizelimit : slimit;
470 backsql_init_search(&srch_info,bi,(char*)nbase,scope,slimit,tlimit,stoptime,filter,dbh,
473 //for each objectclass we try to construct query which gets IDs
474 //of entries matching LDAP query filter and scope (or at least candidates),
476 avl_apply(bi->oc_by_name,(AVL_APPLY)backsql_oc_get_candidates,&srch_info,0,AVL_INORDER);
479 //now we load candidate entries (only those attrubutes mentioned in attrs and filter),
480 //test it against full filter and then send to client
481 for(eid=srch_info.id_list;eid!=NULL;eid=eid->next)
483 /* check for abandon */
484 ldap_pvt_thread_mutex_lock(&op->o_abandonmutex);
487 ldap_pvt_thread_mutex_unlock(&op->o_abandonmutex);
490 ldap_pvt_thread_mutex_unlock(&op->o_abandonmutex);
492 /* check time limit */
493 if ( tlimit != -1 && slap_get_time() > stoptime)
495 send_search_result( conn, op, LDAP_TIMELIMIT_EXCEEDED,
496 NULL, NULL, v2refs, NULL, nentries );
501 Debug(LDAP_DEBUG_TRACE,"backsql_search(): loading data for entry id=%d, oc_id=%d, keyval=%d\n",
502 eid->id,eid->oc_id,eid->keyval);
504 entry=(Entry *)ch_calloc(sizeof(Entry),1);
505 res=backsql_id2entry(&srch_info,entry,eid);
508 Debug(LDAP_DEBUG_TRACE,"backsql_search(): error in backsql_id2entry() - skipping entry\n",0,0,0);
512 if ( !manageDSAit && scope != LDAP_SCOPE_BASE &&
513 is_entry_referral( entry ) )
515 struct berval **refs = get_entry_referrals(be,conn,op,entry);
517 send_search_reference( be, conn, op, entry, refs, scope, NULL, &v2refs );
518 ber_bvecfree( refs );
522 if (test_filter(be,conn,op,entry,filter)==LDAP_COMPARE_TRUE)
524 if ((sres=send_search_entry(be,conn,op,entry,attrs,attrsonly,NULL))==-1)
526 Debug(LDAP_DEBUG_TRACE,"backsql_search(): connection lost\n",0,0,0);
534 for(eid=srch_info.id_list;eid!=NULL;eid=backsql_free_entryID(eid));
536 charray_free(srch_info.attrs);
539 send_search_result( conn, op,
540 v2refs == NULL ? LDAP_SUCCESS : LDAP_REFERRAL,
541 NULL, NULL, v2refs, NULL, nentries );
543 send_ldap_result(conn,op,LDAP_NO_SUCH_OBJECT,NULL,NULL,NULL,0);
545 Debug(LDAP_DEBUG_TRACE,"<==backsql_search()\n",0,0,0);
549 #endif /* SLAPD_SQL */