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  long 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  rc=backsql_Prepare(dbh,&oc_sth,si->oc_query,0);
 118  if (rc != SQL_SUCCESS)
 119   {
 120    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error preparing oc_query: '%s'\n",si->oc_query,0,0);
 121    backsql_PrintErrors(si->db_env,dbh,oc_sth,rc);
 122    return -1;
 123   }
 124  rc=backsql_Prepare(dbh,&at_sth,si->at_query,0);
 125  if (rc != SQL_SUCCESS)
 126   {
 127    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error preparing at_query: '%s'\n",si->at_query,0,0);
 128    backsql_PrintErrors(si->db_env,dbh,at_sth,rc);
 129    return -1;
 130   }
 131  if ((rc=backsql_BindParamID(at_sth,1,&oc_id)) != SQL_SUCCESS)
 132   {
 133    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error binding param for at_query: \n",0,0,0);
 134    backsql_PrintErrors(si->db_env,dbh,at_sth,rc);
 135    return -1;
 136   }
 137  if ((rc=SQLExecute(oc_sth)) != SQL_SUCCESS)
 138   {
 139    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error executing oc_query: \n",0,0,0);
 140    backsql_PrintErrors(si->db_env,dbh,oc_sth,rc);
 141    return -1;
 142   }
 143  backsql_BindRowAsStrings(oc_sth,&oc_row);
 144  while ((rc=SQLFetch(oc_sth)) == SQL_SUCCESS || rc == SQL_SUCCESS_WITH_INFO)
 145   {
 146    oc_map=(backsql_oc_map_rec*)ch_calloc(1,sizeof(backsql_oc_map_rec));
 147    oc_map->id=atoi(oc_row.cols[0]);
 148    oc_map->name=ch_strdup(oc_row.cols[1]);
 149    oc_map->keytbl=ch_strdup(oc_row.cols[2]);
 150    oc_map->keycol=ch_strdup(oc_row.cols[3]);
 151    oc_map->create_proc=(oc_row.is_null[4]<0)?NULL:ch_strdup(oc_row.cols[4]);
 152    oc_map->delete_proc=(oc_row.is_null[5]<0)?NULL:ch_strdup(oc_row.cols[5]);
 153    oc_map->expect_return=atoi(oc_row.cols[6]);
 154
 155    oc_map->attrs=NULL;
 156    avl_insert(&si->oc_by_name,oc_map,(AVL_CMP)backsql_cmp_oc_name,backsql_dummy);
 157    avl_insert(&si->oc_by_id,oc_map,(AVL_CMP)backsql_cmp_oc_id,backsql_dummy);
 158    oc_id=oc_map->id;
 159    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): objectclass '%s': keytbl='%s' keycol='%s' ",
 160            oc_map->name,oc_map->keytbl,oc_map->keycol);
 161    Debug(LDAP_DEBUG_TRACE,"create_proc='%s' delete_proc='%s' expect_return=%d; attributes:\n",
 162        oc_map->create_proc,oc_map->delete_proc,oc_map->expect_return);
 163    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): autoadding 'objectClass' and 'ref' mappings\n",0,0,0);
 164    backsql_add_sysmaps(oc_map);
 165    if ((rc=SQLExecute(at_sth)) != SQL_SUCCESS)
 166     {
 167      Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error executing at_query: \n",0,0,0);
 168      backsql_PrintErrors(SQL_NULL_HENV,dbh,at_sth,rc);
 169      return -1;
 170     }
 171    backsql_BindRowAsStrings(at_sth,&at_row);
 172    while ((rc=SQLFetch(at_sth)) == SQL_SUCCESS || rc == SQL_SUCCESS_WITH_INFO)
 173     {
 174      Debug(LDAP_DEBUG_TRACE,"********'%s'\n",at_row.cols[0],0,0);
 175      Debug(LDAP_DEBUG_TRACE,"name='%s',sel_expr='%s' from='%s' ",at_row.cols[0],
 176              at_row.cols[1],at_row.cols[2]);
 177          Debug(LDAP_DEBUG_TRACE,"join_where='%s',add_proc='%s' ",at_row.cols[3],
 178              at_row.cols[4],0);
 179          Debug(LDAP_DEBUG_TRACE,"delete_proc='%s'\n",at_row.cols[5],0,0);
 180      at_map=(backsql_at_map_rec*)ch_calloc(1,sizeof(backsql_at_map_rec));
 181      at_map->name=ch_strdup(at_row.cols[0]);
 182      at_map->sel_expr=ch_strdup(at_row.cols[1]);
 183          tmps=NULL;tmpslen=0;
 184          backsql_merge_from_clause(&tmps,&tmpslen,at_row.cols[2]);
 185      at_map->from_tbls=ch_strdup(tmps);
 186          ch_free(tmps);
 187          at_map->join_where=ch_strdup((at_row.is_null[3]<0)?"":at_row.cols[3]);
 188          at_map->add_proc=(at_row.is_null[4]<0)?NULL:ch_strdup(at_row.cols[4]);
 189          at_map->delete_proc=(at_row.is_null[5]<0)?NULL:ch_strdup(at_row.cols[5]);
 190          at_map->param_order=atoi(at_row.cols[6]);
 191          at_map->expect_return=atoi(at_row.cols[7]);
 192          backsql_make_attr_query(oc_map,at_map);
 193          Debug(LDAP_DEBUG_TRACE,"load_schema_map(): preconstructed query '%s'\n",at_map->query,0,0);
 194      avl_insert(&oc_map->attrs,at_map,(AVL_CMP)backsql_cmp_attr,backsql_dummy);
 195     }
 196    backsql_FreeRow(&at_row);
 197    SQLFreeStmt(at_sth,SQL_CLOSE);
 198   }
 199  backsql_FreeRow(&oc_row);
 200  SQLFreeStmt(at_sth,SQL_DROP);
 201  SQLFreeStmt(oc_sth,SQL_DROP);
 202  si->schema_loaded=1;
 203  Debug(LDAP_DEBUG_TRACE,"<==load_schema_map()\n",0,0,0);
 204  return 1;
 205 }
 206
 207 backsql_oc_map_rec* backsql_oc_with_name(backsql_info *si,char* objclass)
 208 {
 209  backsql_oc_map_rec tmp,*res;
 210
 211 // Debug(LDAP_DEBUG_TRACE,"==>oc_with_name(): searching for objectclass with name='%s'\n",objclass,0,0);
 212  tmp.name=objclass;
 213  res=(backsql_oc_map_rec*)avl_find(si->oc_by_name,&tmp,(AVL_CMP)backsql_cmp_oc_name);
 214 // if (res!=NULL)
 215 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): found name='%s', id=%d\n",res->name,res->id,0);
 216 // else
 217 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): not found\n",0,0,0);
 218  return res;
 219 }
 220
 221 backsql_oc_map_rec* backsql_oc_with_id(backsql_info *si,unsigned long id)
 222 {
 223  backsql_oc_map_rec tmp,*res;
 224
 225 // Debug(LDAP_DEBUG_TRACE,"==>oc_with_id(): searching for objectclass with id='%d'\n",id,0,0);
 226  tmp.id=id;
 227  res=(backsql_oc_map_rec*)avl_find(si->oc_by_id,&tmp,(AVL_CMP)backsql_cmp_oc_id);
 228 // if (res!=NULL)
 229 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): found name='%s', id=%d\n",res->name,res->id,0);
 230 // else
 231 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): not found\n",0,0,0);
 232  return res;
 233 }
 234
 235 backsql_at_map_rec* backsql_at_with_name(backsql_oc_map_rec* objclass,char* attr)
 236 {
 237  backsql_at_map_rec tmp,*res;
 238
 239  //Debug(LDAP_DEBUG_TRACE,"==>at_with_name(): searching for attribute with name='%s' (for objectclass '%s')\n",
 240  //                attr,objclass->name,0);
 241  tmp.name=attr;
 242  res=(backsql_at_map_rec*)avl_find(objclass->attrs,&tmp,(AVL_CMP)backsql_cmp_attr);
 243  //if (res!=NULL)
 244   //Debug(LDAP_DEBUG_TRACE,"<==at_with_name(): found name='%s', sel_expr='%s'\n",
 245   //            res->name,res->sel_expr,0);
 246  //else
 247  // Debug(LDAP_DEBUG_TRACE,"<==at_with_name(): not found\n",0,0,0);
 248  return res;
 249 }
 250
 251 int backsql_free_attr(backsql_at_map_rec *at)
 252 {
 253  Debug(LDAP_DEBUG_TRACE,"==>free_attr(): '%s'\n",at->name,0,0);
 254  ch_free(at->name);
 255  ch_free(at->sel_expr);
 256  if (at->from_tbls!=NULL)
 257   ch_free(at->from_tbls);
 258  if (at->join_where!=NULL)
 259   ch_free(at->join_where);
 260  if (at->add_proc!=NULL)
 261   ch_free(at->add_proc);
 262  if (at->delete_proc!=NULL)
 263   ch_free(at->delete_proc);
 264  if (at->query)
 265   ch_free(at->query);
 266  ch_free(at);
 267  Debug(LDAP_DEBUG_TRACE,"<==free_attr()\n",0,0,0);
 268  return 1;
 269 }
 270
 271 int backsql_free_oc(backsql_oc_map_rec *oc)
 272 {
 273  Debug(LDAP_DEBUG_TRACE,"==>free_oc(): '%s'\n",oc->name,0,0);
 274  avl_free(oc->attrs,(AVL_FREE)backsql_free_attr);
 275  ch_free(oc->name);
 276  ch_free(oc->keytbl);
 277  ch_free(oc->keycol);
 278  if (oc->create_proc!=NULL)
 279   ch_free(oc->create_proc);
 280  if (oc->delete_proc!=NULL)
 281   ch_free(oc->delete_proc);
 282  ch_free(oc);
 283  Debug(LDAP_DEBUG_TRACE,"<==free_oc()\n",0,0,0);
 284  return 1;
 285 }
 286
 287 int backsql_destroy_schema_map(backsql_info *si)
 288 {
 289  Debug(LDAP_DEBUG_TRACE,"==>destroy_schema_map()\n",0,0,0);
 290  avl_free(si->oc_by_id,(AVL_FREE)backsql_free_oc);
 291  avl_free(si->oc_by_name,(AVL_FREE)backsql_dummy);
 292  Debug(LDAP_DEBUG_TRACE,"<==destroy_schema_map()\n",0,0,0);
 293  return 0;
 294 }
 295
 296 #endif /* SLAPD_SQL */