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

   1 /*
   2  *       Copyright 1999, Dmitry Kovalev (zmit@mail.ru), 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 #include <stdio.h>
  13 #include <sys/types.h>
  14 #include <string.h>
  15 #include "slap.h"
  16 #include "back-sql.h"
  17 #include "sql-wrap.h"
  18 #include "schema-map.h"
  19 #include "util.h"
  20
  21 int backsql_dummy(void *,void *);
  22
  23 int backsql_cmp_oc_name(backsql_oc_map_rec *m1,backsql_oc_map_rec *m2)
  24 {
  25  return strcasecmp(m1->name,m2->name);
  26 }
  27
  28 int backsql_cmp_oc_id(backsql_oc_map_rec *m1,backsql_oc_map_rec *m2)
  29 {
  30  if (m1->id < m2->id)
  31   return -1;
  32  if (m1->id > m2->id)
  33   return 1;
  34  return 0;
  35 }
  36
  37 int backsql_cmp_attr(backsql_at_map_rec *m1,backsql_at_map_rec *m2)
  38 {
  39  return strcasecmp(m1->name,m2->name);
  40 }
  41
  42 int backsql_load_schema_map(backsql_info *si,SQLHDBC dbh)
  43 {
  44  SQLHSTMT oc_sth,at_sth;
  45  RETCODE rc;
  46  BACKSQL_ROW_NTS oc_row,at_row;
  47  unsigned long oc_id;
  48  backsql_oc_map_rec *oc_map;
  49  backsql_at_map_rec *at_map;
  50  char *tmps;
  51  int tmpslen;
  52
  53  Debug(LDAP_DEBUG_TRACE,"==>load_schema_map()\n",0,0,0);
  54  rc=backsql_Prepare(dbh,&oc_sth,si->oc_query,0);
  55  if (rc != SQL_SUCCESS)
  56   {
  57    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error preparing oc_query: '%s'\n",si->oc_query,0,0);
  58    backsql_PrintErrors(si->db_env,dbh,oc_sth,rc);
  59    return -1;
  60   }
  61  rc=backsql_Prepare(dbh,&at_sth,si->at_query,0);
  62  if (rc != SQL_SUCCESS)
  63   {
  64    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error preparing at_query: '%s'\n",si->at_query,0,0);
  65    backsql_PrintErrors(si->db_env,dbh,at_sth,rc);
  66    return -1;
  67   }
  68  if ((rc=backsql_BindParamID(at_sth,1,&oc_id)) != SQL_SUCCESS)
  69   {
  70    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error binding param for at_query: \n",0,0,0);
  71    backsql_PrintErrors(si->db_env,dbh,at_sth,rc);
  72    return -1;
  73   }
  74  if ((rc=SQLExecute(oc_sth)) != SQL_SUCCESS)
  75   {
  76    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error executing oc_query: \n",0,0,0);
  77    backsql_PrintErrors(si->db_env,dbh,oc_sth,rc);
  78    return -1;
  79   }
  80  backsql_BindRowAsStrings(oc_sth,&oc_row);
  81  while ((rc=SQLFetch(oc_sth)) == SQL_SUCCESS || rc == SQL_SUCCESS_WITH_INFO)
  82   {
  83    oc_map=(backsql_oc_map_rec*)ch_calloc(1,sizeof(backsql_oc_map_rec));
  84    oc_map->id=atoi(oc_row.cols[0]);
  85    oc_map->name=strdup(oc_row.cols[1]);
  86    oc_map->keytbl=strdup(oc_row.cols[2]);
  87    oc_map->keycol=strdup(oc_row.cols[3]);
  88    oc_map->create_proc=(oc_row.is_null[4]<0)?NULL:strdup(oc_row.cols[4]);
  89    oc_map->delete_proc=(oc_row.is_null[5]<0)?NULL:strdup(oc_row.cols[5]);
  90    oc_map->attrs=NULL;
  91    avl_insert(&si->oc_by_name,oc_map,(AVL_CMP)backsql_cmp_oc_name,backsql_dummy);
  92    avl_insert(&si->oc_by_id,oc_map,(AVL_CMP)backsql_cmp_oc_id,backsql_dummy);
  93    oc_id=oc_map->id;
  94    Debug(LDAP_DEBUG_TRACE,"load_schema_map(): objectclass '%s': keytbl='%s' keycol='%s' ",
  95            oc_row.cols[1],oc_row.cols[2],oc_row.cols[3]);
  96    Debug(LDAP_DEBUG_TRACE,"create_proc='%s' delete_proc='%s' ; attributes:\n",oc_row.cols[4],
  97            oc_row.cols[5],0);
  98    if ((rc=SQLExecute(at_sth)) != SQL_SUCCESS)
  99     {
 100      Debug(LDAP_DEBUG_TRACE,"load_schema_map(): error executing at_query: \n",0,0,0);
 101      backsql_PrintErrors(SQL_NULL_HENV,dbh,at_sth,rc);
 102      return -1;
 103     }
 104    backsql_BindRowAsStrings(at_sth,&at_row);
 105    while ((rc=SQLFetch(at_sth)) == SQL_SUCCESS || rc == SQL_SUCCESS_WITH_INFO)
 106     {
 107      Debug(LDAP_DEBUG_TRACE,"********'%s'\n",at_row.cols[0],0,0);
 108      Debug(LDAP_DEBUG_TRACE,"name='%s',sel_expr='%s' from='%s' ",at_row.cols[0],
 109              at_row.cols[1],at_row.cols[2]);
 110          Debug(LDAP_DEBUG_TRACE,"join_where='%s',add_proc='%s' modify_proc='%s' ",at_row.cols[3],
 111              at_row.cols[4],at_row.cols[5]);
 112          Debug(LDAP_DEBUG_TRACE,"delete_proc='%s'\n",at_row.cols[6],0,0);
 113      at_map=(backsql_at_map_rec*)ch_calloc(1,sizeof(backsql_at_map_rec));
 114      at_map->name=strdup(at_row.cols[0]);
 115      at_map->sel_expr=strdup(at_row.cols[1]);
 116          tmps=NULL;tmpslen=0;
 117          backsql_merge_from_clause(&tmps,&tmpslen,at_row.cols[2]);
 118      at_map->from_tbls=strdup(tmps);
 119          ch_free(tmps);
 120          at_map->join_where=strdup((at_row.is_null[3]<0)?"":at_row.cols[3]);
 121          at_map->add_proc=(at_row.is_null[4]<0)?NULL:strdup(at_row.cols[4]);
 122          at_map->modify_proc=(at_row.is_null[5]<0)?NULL:strdup(at_row.cols[5]);
 123          at_map->delete_proc=(at_row.is_null[6]<0)?NULL:strdup(at_row.cols[6]);
 124          tmps=NULL;tmpslen=0;
 125          tmps=backsql_strcat(tmps,&tmpslen,"SELECT ",at_map->sel_expr," AS ",at_map->name,
 126                         " FROM ",at_map->from_tbls,
 127                         " WHERE ",oc_map->keytbl,".",oc_map->keycol,"=?",NULL);
 128      if (at_map->join_where!=NULL && at_map->join_where[0]!='\0')
 129        tmps=backsql_strcat(tmps,&tmpslen," AND ",at_map->join_where,NULL);
 130          at_map->query=strdup(tmps);
 131          ch_free(tmps);
 132          Debug(LDAP_DEBUG_TRACE,"load_schema_map(): preconstructed query '%s'\n",at_map->query,0,0);
 133      avl_insert(&oc_map->attrs,at_map,(AVL_CMP)backsql_cmp_attr,backsql_dummy);
 134     }
 135    backsql_FreeRow(&at_row);
 136    SQLFreeStmt(at_sth,SQL_CLOSE);
 137   }
 138  backsql_FreeRow(&oc_row);
 139  SQLFreeStmt(at_sth,SQL_DROP);
 140  SQLFreeStmt(oc_sth,SQL_DROP);
 141  si->schema_loaded=1;
 142  Debug(LDAP_DEBUG_TRACE,"<==load_schema_map()\n",0,0,0);
 143  return 1;
 144 }
 145
 146 backsql_oc_map_rec* backsql_oc_with_name(backsql_info *si,char* objclass)
 147 {
 148  backsql_oc_map_rec tmp,*res;
 149
 150 // Debug(LDAP_DEBUG_TRACE,"==>oc_with_name(): searching for objectclass with name='%s'\n",objclass,0,0);
 151  tmp.name=objclass;
 152  res=(backsql_oc_map_rec*)avl_find(si->oc_by_name,&tmp,(AVL_CMP)backsql_cmp_oc_name);
 153 // if (res!=NULL)
 154 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): found name='%s', id=%d\n",res->name,res->id,0);
 155 // else
 156 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): not found\n",0,0,0);
 157  return res;
 158 }
 159
 160 backsql_oc_map_rec* backsql_oc_with_id(backsql_info *si,unsigned long id)
 161 {
 162  backsql_oc_map_rec tmp,*res;
 163
 164 // Debug(LDAP_DEBUG_TRACE,"==>oc_with_id(): searching for objectclass with id='%d'\n",id,0,0);
 165  tmp.id=id;
 166  res=(backsql_oc_map_rec*)avl_find(si->oc_by_id,&tmp,(AVL_CMP)backsql_cmp_oc_id);
 167 // if (res!=NULL)
 168 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): found name='%s', id=%d\n",res->name,res->id,0);
 169 // else
 170 //  Debug(LDAP_DEBUG_TRACE,"<==oc_with_name(): not found\n",0,0,0);
 171  return res;
 172 }
 173
 174 backsql_at_map_rec* backsql_at_with_name(backsql_oc_map_rec* objclass,char* attr)
 175 {
 176  backsql_at_map_rec tmp,*res;
 177
 178  //Debug(LDAP_DEBUG_TRACE,"==>at_with_name(): searching for attribute with name='%s' (for objectclass '%s')\n",
 179  //                attr,objclass->name,0);
 180  tmp.name=attr;
 181  res=(backsql_at_map_rec*)avl_find(objclass->attrs,&tmp,(AVL_CMP)backsql_cmp_attr);
 182  //if (res!=NULL)
 183   //Debug(LDAP_DEBUG_TRACE,"<==at_with_name(): found name='%s', sel_expr='%s'\n",
 184   //            res->name,res->sel_expr,0);
 185  //else
 186  // Debug(LDAP_DEBUG_TRACE,"<==at_with_name(): not found\n",0,0,0);
 187  return res;
 188 }
 189
 190 int backsql_free_attr(backsql_at_map_rec *at)
 191 {
 192  Debug(LDAP_DEBUG_TRACE,"==>free_attr(): '%s'\n",at->name,0,0);
 193  ch_free(at->name);
 194  ch_free(at->sel_expr);
 195  if (at->from_tbls!=NULL)
 196   ch_free(at->from_tbls);
 197  if (at->join_where!=NULL)
 198   ch_free(at->join_where);
 199  if (at->add_proc!=NULL)
 200   ch_free(at->add_proc);
 201  if (at->modify_proc!=NULL)
 202   ch_free(at->modify_proc);
 203  if (at->delete_proc!=NULL)
 204   ch_free(at->delete_proc);
 205  if (at->query)
 206   ch_free(at->query);
 207  ch_free(at);
 208  Debug(LDAP_DEBUG_TRACE,"<==free_attr()\n",0,0,0);
 209  return 1;
 210 }
 211
 212 int backsql_free_oc(backsql_oc_map_rec *oc)
 213 {
 214  Debug(LDAP_DEBUG_TRACE,"==>free_oc(): '%s'\n",oc->name,0,0);
 215  avl_free(oc->attrs,(AVL_FREE)backsql_free_attr);
 216  ch_free(oc->name);
 217  ch_free(oc->keytbl);
 218  ch_free(oc->keycol);
 219  if (oc->create_proc!=NULL)
 220   ch_free(oc->create_proc);
 221  if (oc->delete_proc!=NULL)
 222   ch_free(oc->delete_proc);
 223  ch_free(oc);
 224  Debug(LDAP_DEBUG_TRACE,"<==free_oc()\n",0,0,0);
 225  return 1;
 226 }
 227
 228 int backsql_destroy_schema_map(backsql_info *si)
 229 {
 230  Debug(LDAP_DEBUG_TRACE,"==>destroy_schema_map()\n",0,0,0);
 231  avl_free(si->oc_by_id,(AVL_FREE)backsql_free_oc);
 232  avl_free(si->oc_by_name,(AVL_FREE)backsql_dummy);
 233  Debug(LDAP_DEBUG_TRACE,"<==destroy_schema_map()\n",0,0,0);
 234  return 0;
 235 }