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

   1 /*
   2  *       Copyright 1999, Dmitry Kovalev <mit@openldap.org>, All rights reserved.
   3  *
   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.
   8  */
   9
  10 #include "portable.h"
  11
  12 #ifdef SLAPD_SQL
  13
  14 #include <stdio.h>
  15 #include <sys/types.h>
  16 #include <string.h>
  17 #include "slap.h"
  18 #include "back-sql.h"
  19 #include "sql-wrap.h"
  20 #include "schema-map.h"
  21 #include "util.h"
  22
  23 int backsql_dummy(void *,void *);
  24
  25 int backsql_cmp_oc_name(backsql_oc_map_rec *m1,backsql_oc_map_rec *m2)
  26 {
  27  return strcasecmp(m1->name,m2->name);
  28 }
  29
  30 int backsql_cmp_oc_id(backsql_oc_map_rec *m1,backsql_oc_map_rec *m2)
  31 {
  32  if (m1->id < m2->id)
  33   return -1;
  34  if (m1->id > m2->id)
  35   return 1;
  36  return 0;
  37 }
  38
  39 int backsql_cmp_attr(backsql_at_map_rec *m1,backsql_at_map_rec *m2)
  40 {
  41  return strcasecmp(m1->name,m2->name);
  42 }
  43
  44 char* backsql_make_attr_query(backsql_oc_map_rec *oc_map,backsql_at_map_rec *at_map)
  45 {
  46  char *tmps;
  47  int tmpslen;
  48
  49  tmps=NULL;tmpslen=0;
  50  tmps=backsql_strcat(tmps,&tmpslen,"SELECT ",at_map->sel_expr," AS ",at_map->name,
  51                         " FROM ",at_map->from_tbls,
  52                         " WHERE ",oc_map->keytbl,".",oc_map->keycol,"=?",NULL);
  53  if (at_map->join_where!=NULL && at_map->join_where[0]!='\0')
  54   tmps=backsql_strcat(tmps,&tmpslen," AND ",at_map->join_where,NULL);
  55  at_map->query=ch_strdup(tmps);
  56  ch_free(tmps);
  57  return at_map->query;
  58 }
  59
  60
  61 int backsql_add_sysmaps(backsql_oc_map_rec *oc_map)
  62 {
  63  backsql_at_map_rec *at_map;
  64  int len;
  65  char s[30];
  66
  67  sprintf(s,"%d",oc_map->id);
  68  at_map=(backsql_at_map_rec*)ch_calloc(1,sizeof(backsql_at_map_rec));
  69  at_map->name=ch_strdup("objectClass");
  70  at_map->sel_expr=ch_strdup("ldap_entry_objclasses.oc_name");
  71  at_map->from_tbls=ch_strdup("ldap_entry_objclasses,ldap_entries");
  72  len=strlen(at_map->from_tbls);
  73  backsql_merge_from_clause(&at_map->from_tbls,&len,oc_map->keytbl);
  74  at_map->join_where=NULL; len=0;
  75  at_map->join_where=backsql_strcat(at_map->join_where,&len,
  76                         "ldap_entries.id=ldap_entry_objclasses.entry_id and ldap_entries.keyval=",
  77                         oc_map->keytbl,".",oc_map->keycol," and ldap_entries.oc_map_id=",s,NULL);
  78  at_map->add_proc=NULL;
  79  at_map->delete_proc=NULL;
  80  at_map->param_order=0;
  81  at_map->expect_return=0;
  82  backsql_make_attr_query(oc_map,at_map);
  83  avl_insert(&oc_map->attrs,at_map,(AVL_CMP)backsql_cmp_attr,backsql_dummy);
  84
  85  at_map=(backsql_at_map_rec*)ch_calloc(1,sizeof(backsql_at_map_rec));
  86  at_map->name=ch_strdup("ref");
  87  at_map->sel_expr=ch_strdup("ldap_referrals.url");
  88  at_map->from_tbls=ch_strdup("ldap_referrals,ldap_entries");
  89  len=strlen(at_map->from_tbls);
  90  backsql_merge_from_clause(&at_map->from_tbls,&len,oc_map->keytbl);
  91  at_map->join_where=NULL; len=0;
  92  at_map->join_where=backsql_strcat(at_map->join_where,&len,
  93                         "ldap_entries.id=ldap_referrals.entry_id and ldap_entries.keyval=",
  94                         oc_map->keytbl,".",oc_map->keycol," and ldap_entries.oc_map_id=",s,NULL);
  95  at_map->add_proc=NULL;
  96  at_map->delete_proc=NULL;
  97  at_map->param_order=0;
  98  at_map->expect_return=0;
  99  backsql_make_attr_query(oc_map,at_map);
 100  avl_insert(&oc_map->attrs,at_map,(AVL_CMP)backsql_cmp_attr,backsql_dummy);
 101
 102  return 1;
 103 }
 104
 105 int backsql_load_schema_map(backsql_info *si,SQLHDBC dbh)
 106 {
 107  SQLHSTMT oc_sth,at_sth;
 108  RETCODE rc;
 109  BACKSQL_ROW_NTS oc_row,at_row;
 110  unsigned long oc_id;
 111  backsql_oc_map_rec *oc_map;
 112  backsql_at_map_rec *at_map;
 113  char *tmps;
 114  int tmpslen;
 115
 116  Debug(LDAP_DEBUG_TRACE,"==>load_schema_map()\n",0,0,0);
 117
 118  /* TimesTen : See if the ldap_entries.dn_ru field exists in the schema. */
 119
 120  rc = backsql_Prepare(dbh, &oc_sth, backsql_check_dn_ru_query, 0);
 121  if (rc == SQL_SUCCESS) {
 122    si->has_ldapinfo_dn_ru = 1;  // Yes, the field exists
 123    Debug(LDAP_DEBUG_TRACE, "ldapinfo.dn_ru field exists in the schema\n", 0, 0,
 124 0);
 125  }
 126  else {
 127    si->has_ldapinfo_dn_ru = 0;  // No such field exists
 128  }
 129
 130  SQLFreeStmt(oc_sth, SQL_DROP);
 131
 132  rc=backsql_Prepare(dbh,&oc_sth,si->oc_query,0);
 133  if (rc != SQL_SUCCESS)
 134   {
 135    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error preparing oc_query: '%s'\n",si->oc_query,0,0);
 136    backsql_PrintErrors(si->db_env,dbh,oc_sth,rc);
 137    return -1;
 138   }
 139   Debug(LDAP_DEBUG_TRACE, "load_schema_map(): at_query '%s'\n", si->at_query,0,0);
 140
 141  rc=backsql_Prepare(dbh,&at_sth,si->at_query,0);
 142  if (rc != SQL_SUCCESS)
 143   {
 144    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error preparing at_query: '%s'\n",si->at_query,0,0);
 145    backsql_PrintErrors(si->db_env,dbh,at_sth,rc);
 146    return -1;
 147   }
 148  if ((rc=backsql_BindParamID(at_sth,1,&oc_id)) != SQL_SUCCESS)
 149   {
 150    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error binding param for at_query: \n",0,0,0);
 151    backsql_PrintErrors(si->db_env,dbh,at_sth,rc);
 152    return -1;
 153   }
 154  if ((rc=SQLExecute(oc_sth)) != SQL_SUCCESS)
 155   {
 156    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error executing oc_query: \n",0,0,0);
 157    backsql_PrintErrors(si->db_env,dbh,oc_sth,rc);
 158    return -1;
 159   }
 160  backsql_BindRowAsStrings(oc_sth,&oc_row);
 161  while ((rc=SQLFetch(oc_sth)) == SQL_SUCCESS || rc == SQL_SUCCESS_WITH_INFO)
 162   {
 163    oc_map=(backsql_oc_map_rec*)ch_calloc(1,sizeof(backsql_oc_map_rec));
 164    oc_map->id=atoi(oc_row.cols[0]);
 165    oc_map->name=ch_strdup(oc_row.cols[1]);
 166    oc_map->keytbl=ch_strdup(oc_row.cols[2]);
 167    oc_map->keycol=ch_strdup(oc_row.cols[3]);
 168    oc_map->create_proc=(oc_row.is_null[4]<0)?NULL:ch_strdup(oc_row.cols[4]);
 169    oc_map->delete_proc=(oc_row.is_null[5]<0)?NULL:ch_strdup(oc_row.cols[5]);
 170    oc_map->expect_return=atoi(oc_row.cols[6]);
 171
 172    oc_map->attrs=NULL;
 173    avl_insert(&si->oc_by_name,oc_map,(AVL_CMP)backsql_cmp_oc_name,backsql_dummy);
 174    avl_insert(&si->oc_by_id,oc_map,(AVL_CMP)backsql_cmp_oc_id,backsql_dummy);
 175    oc_id=oc_map->id;
 176    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): objectclass '%s': keytbl='%s' keycol='%s' ",
 177            oc_map->name,oc_map->keytbl,oc_map->keycol);
 178    if (oc_map->delete_proc) {
 179      Debug(LDAP_DEBUG_TRACE,"delete_proc='%s'\n", oc_map->delete_proc, 0, 0);
 180    }
 181    if (oc_map->create_proc) {
 182      Debug(LDAP_DEBUG_TRACE,"create_proc='%s'\n", oc_map->create_proc, 0, 0);
 183    }
 184    Debug(LDAP_DEBUG_TRACE,"expect_return=%d; attributes:\n",
 185        oc_map->expect_return, 0, 0);
 186
 187    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): autoadding 'objectClass' and 'ref' mappings\n",0,0,0);
 188    backsql_add_sysmaps(oc_map);
 189    if ((rc=SQLExecute(at_sth)) != SQL_SUCCESS)
 190     {
 191      Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error executing at_query: \n",0,0,0);
 192      backsql_PrintErrors(SQL_NULL_HENV,dbh,at_sth,rc);
 193      return -1;
 194     }
 195    backsql_BindRowAsStrings(at_sth,&at_row);
 196    while ((rc=SQLFetch(at_sth)) == SQL_SUCCESS || rc == SQL_SUCCESS_WITH_INFO)
 197     {
 198      Debug(LDAP_DEBUG_TRACE,"********'%s'\n",at_row.cols[0],0,0);
 199      Debug(LDAP_DEBUG_TRACE,"name='%s',sel_expr='%s' from='%s' ",at_row.cols[0],
 200              at_row.cols[1],at_row.cols[2]);
 201          Debug(LDAP_DEBUG_TRACE,"join_where='%s',add_proc='%s' ",at_row.cols[3],
 202              at_row.cols[4],0);
 203          Debug(LDAP_DEBUG_TRACE,"delete_proc='%s'\n",at_row.cols[5],0,0);
 204          Debug(LDAP_DEBUG_TRACE,"sel_expr_u='%s'\n", at_row.cols[8],0,0); // TimesTen
 205      at_map=(backsql_at_map_rec*)ch_calloc(1,sizeof(backsql_at_map_rec));
 206      at_map->name=ch_strdup(at_row.cols[0]);
 207      at_map->sel_expr=ch_strdup(at_row.cols[1]);
 208          at_map->sel_expr_u = (at_row.is_null[8]<0)?NULL:ch_strdup(at_row.cols[8
 209 ]);
 210          tmps=NULL;tmpslen=0;
 211          backsql_merge_from_clause(&tmps,&tmpslen,at_row.cols[2]);
 212      at_map->from_tbls=ch_strdup(tmps);
 213          ch_free(tmps);
 214          at_map->join_where=ch_strdup((at_row.is_null[3]<0)?"":at_row.cols[3]);
 215          at_map->add_proc=(at_row.is_null[4]<0)?NULL:ch_strdup(at_row.cols[4]);
 216          at_map->delete_proc=(at_row.is_null[5]<0)?NULL:ch_strdup(at_row.cols[5]);
 217          at_map->param_order=atoi(at_row.cols[6]);
 218          at_map->expect_return=atoi(at_row.cols[7]);
 219          backsql_make_attr_query(oc_map,at_map);
 220          Debug(LDAP_DEBUG_TRACE,"load_schema_map(): preconstructed query '%s'\n",at_map->query,0,0);
 221      avl_insert(&oc_map->attrs,at_map,(AVL_CMP)backsql_cmp_attr,backsql_dummy);
 222     }
 223    backsql_FreeRow(&at_row);
 224    SQLFreeStmt(at_sth,SQL_CLOSE);
 225   }
 226  backsql_FreeRow(&oc_row);
 227  SQLFreeStmt(at_sth,SQL_DROP);
 228  SQLFreeStmt(oc_sth,SQL_DROP);
 229  si->schema_loaded=1;
 230  Debug(LDAP_DEBUG_TRACE,"<==load_schema_map()\n",0,0,0);
 231  return 1;
 232 }
 233
 234 backsql_oc_map_rec* backsql_oc_with_name(backsql_info *si,char* objclass)
 235 {
 236  backsql_oc_map_rec tmp,*res;
 237
 238 // Debug(LDAP_DEBUG_TRACE,"==>oc_with_name(): searching for objectclass with name='%s'\n",objclass,0,0);
 239  tmp.name=objclass;
 240  res=(backsql_oc_map_rec*)avl_find(si->oc_by_name,&tmp,(AVL_CMP)backsql_cmp_oc_name);
 241 // if (res!=NULL)
 242 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): found name='%s', id=%d\n",res->name,res->id,0);
 243 // else
 244 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): not found\n",0,0,0);
 245  return res;
 246 }
 247
 248 backsql_oc_map_rec* backsql_oc_with_id(backsql_info *si,unsigned long id)
 249 {
 250  backsql_oc_map_rec tmp,*res;
 251
 252 // Debug(LDAP_DEBUG_TRACE,"==>oc_with_id(): searching for objectclass with id='%d'\n",id,0,0);
 253  tmp.id=id;
 254  res=(backsql_oc_map_rec*)avl_find(si->oc_by_id,&tmp,(AVL_CMP)backsql_cmp_oc_id);
 255 // if (res!=NULL)
 256 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): found name='%s', id=%d\n",res->name,res->id,0);
 257 // else
 258 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): not found\n",0,0,0);
 259  return res;
 260 }
 261
 262 backsql_at_map_rec* backsql_at_with_name(backsql_oc_map_rec* objclass,char* attr)
 263 {
 264  backsql_at_map_rec tmp,*res;
 265
 266  //Debug(LDAP_DEBUG_TRACE,"==>at_with_name(): searching for attribute with name='%s' (for objectclass '%s')\n",
 267  //                attr,objclass->name,0);
 268  tmp.name=attr;
 269  res=(backsql_at_map_rec*)avl_find(objclass->attrs,&tmp,(AVL_CMP)backsql_cmp_attr);
 270  //if (res!=NULL)
 271   //Debug(LDAP_DEBUG_TRACE,"<==at_with_name(): found name='%s', sel_expr='%s'\n",
 272   //            res->name,res->sel_expr,0);
 273  //else
 274  // Debug(LDAP_DEBUG_TRACE,"<==at_with_name(): not found\n",0,0,0);
 275  return res;
 276 }
 277
 278 int backsql_free_attr(backsql_at_map_rec *at)
 279 {
 280  Debug(LDAP_DEBUG_TRACE,"==>free_attr(): '%s'\n",at->name,0,0);
 281  ch_free(at->name);
 282  ch_free(at->sel_expr);
 283  if (at->from_tbls!=NULL)
 284   ch_free(at->from_tbls);
 285  if (at->join_where!=NULL)
 286   ch_free(at->join_where);
 287  if (at->add_proc!=NULL)
 288   ch_free(at->add_proc);
 289  if (at->delete_proc!=NULL)
 290   ch_free(at->delete_proc);
 291  if (at->query)
 292   ch_free(at->query);
 293  ch_free(at);
 294  if (at->sel_expr_u)
 295    ch_free(at->sel_expr_u); // TimesTen
 296  Debug(LDAP_DEBUG_TRACE,"<==free_attr()\n",0,0,0);
 297  return 1;
 298 }
 299
 300 int backsql_free_oc(backsql_oc_map_rec *oc)
 301 {
 302  Debug(LDAP_DEBUG_TRACE,"==>free_oc(): '%s'\n",oc->name,0,0);
 303  avl_free(oc->attrs,(AVL_FREE)backsql_free_attr);
 304  ch_free(oc->name);
 305  ch_free(oc->keytbl);
 306  ch_free(oc->keycol);
 307  if (oc->create_proc!=NULL)
 308   ch_free(oc->create_proc);
 309  if (oc->delete_proc!=NULL)
 310   ch_free(oc->delete_proc);
 311  ch_free(oc);
 312  Debug(LDAP_DEBUG_TRACE,"<==free_oc()\n",0,0,0);
 313  return 1;
 314 }
 315
 316 int backsql_destroy_schema_map(backsql_info *si)
 317 {
 318  Debug(LDAP_DEBUG_TRACE,"==>destroy_schema_map()\n",0,0,0);
 319  avl_free(si->oc_by_id,(AVL_FREE)backsql_free_oc);
 320  avl_free(si->oc_by_name,(AVL_FREE)backsql_dummy);
 321  Debug(LDAP_DEBUG_TRACE,"<==destroy_schema_map()\n",0,0,0);
 322  return 0;
 323 }
 324
 325 #endif /* SLAPD_SQL */