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openldap/servers/slapd/back-sql/modify.c
Dmitry Kovalev b8af4a67ea Summary of changes: 
- filter -> SQL translation bugfixes
- several memory leaks fixups
- improved configurability:
    - allows definition of  uppercasing function to support CIS matching on databases that do
    case sensitive compares (this fixes up Oracle issues, example updated)
    - allows more flexibility in stored procedures interface (different parameter order, optional return
      codes - see samples, and comments in backsql.h)
- synchronize function interfaces to recent changes in prototypes ("const" clauses etc.) made for all backends
  (those changes led to compile-time errors)
2000-05-26 16:03:32 +00:00

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/*
* Copyright 1999, Dmitry Kovalev <mit@openldap.org>, All rights reserved.
*
* Redistribution and use in source and binary forms are permitted only
* as authorized by the OpenLDAP Public License. A copy of this
* license is available at http://www.OpenLDAP.org/license.html or
* in file LICENSE in the top-level directory of the distribution.
*/
#include "portable.h"
#ifdef SLAPD_SQL
#include <stdio.h>
#include <sys/types.h>
#include <string.h>
#include "slap.h"
#include "back-sql.h"
#include "sql-wrap.h"
#include "schema-map.h"
#include "entry-id.h"
#include "util.h"
int backsql_modify(BackendDB *be,Connection *conn,Operation *op,
const char *dn,const char *ndn,LDAPModList *modlist)
{
backsql_info *bi=(backsql_info*)be->be_private;
SQLHDBC dbh;
SQLHSTMT sth;
RETCODE rc;
backsql_oc_map_rec *oc=NULL;
backsql_entryID e_id,*res;
LDAPModList *c_mod;
backsql_at_map_rec *at=NULL;
struct berval *at_val;
int i;
int pno,po;//first parameter no, parameter order
int prc; //procedure return code
Debug(LDAP_DEBUG_TRACE,"==>backsql_modify(): changing entry '%s'\n",ndn,0,0);
dbh=backsql_get_db_conn(be,conn);
if (!dbh)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): could not get connection handle - exiting\n",0,0,0);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
res=backsql_dn2id(bi,&e_id,dbh,(char*)ndn);
if (res==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): could not lookup entry id\n",0,0,0);
send_ldap_result(conn,op,LDAP_NO_SUCH_OBJECT,"",NULL,NULL,NULL);
return 1;
}
oc=backsql_oc_with_id(bi,e_id.oc_id);
if (oc==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): cannot determine objectclass of entry -- aborting\n",0,0,0);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
SQLAllocStmt(dbh, &sth);
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): traversing modifications list\n",0,0,0);
for(c_mod=modlist;c_mod!=NULL;c_mod=c_mod->ml_next)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): attribute '%s'\n",c_mod->ml_type,0,0);
at=backsql_at_with_name(oc,c_mod->ml_type);
if (at==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): attribute provided is not registered in this objectclass ('%s')\n",c_mod->ml_type,0,0);
continue;
}
switch(c_mod->ml_op)
{
case LDAP_MOD_REPLACE:
{
SQLHSTMT asth;
BACKSQL_ROW_NTS row;
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): replacing values for attribute '%s'\n",at->name,0,0);
if (at->add_proc==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): add procedure is not defined for this attribute ('%s') - unable to perform replacements\n",at->name,0,0);
break;
}
del_all:
if ((rc=backsql_Prepare(dbh,&asth,at->query,0)) != SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): error preparing query\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,asth,rc);
break;
}
if (backsql_BindParamID(asth,1,&e_id.keyval) != SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): error binding key value parameter\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,asth,rc);
SQLFreeStmt(asth,SQL_DROP);
break;
}
if ((rc=SQLExecute(asth)) != SQL_SUCCESS && rc!= SQL_SUCCESS_WITH_INFO)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): error executing attribute query\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,asth,rc);
SQLFreeStmt(asth,SQL_DROP);
break;
}
backsql_BindRowAsStrings(asth,&row);
while ((rc=SQLFetch(asth)) == SQL_SUCCESS || rc==SQL_SUCCESS_WITH_INFO)
{
for (i=0;i<row.ncols;i++)
{
if (at->expect_return & BACKSQL_DEL)
{
pno=1;
SQLBindParameter(sth,1,SQL_PARAM_OUTPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&prc,0,0);
}
else
pno=0;
po=(at->param_order & BACKSQL_DEL)>0;
SQLBindParameter(sth,(SQLUSMALLINT)(pno+1+po),SQL_PARAM_INPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&e_id.keyval,0,0);
//check for syntax needed here - maybe need binary bind?
SQLBindParameter(sth,(SQLUSMALLINT)(pno+2-po),SQL_PARAM_INPUT,SQL_C_CHAR,SQL_CHAR,0,0,row.cols[i],strlen(row.cols[i]),0);
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): executing '%s'\n",at->delete_proc,0,0);
rc=SQLExecDirect(sth,at->delete_proc,SQL_NTS);
if (rc!=SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): delete_proc execution failed\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,sth,rc);
}
}
}
backsql_FreeRow(&row);
SQLFreeStmt(asth,SQL_DROP);
}
//PASSTHROUGH - to add new attributes -- do NOT add break
case LDAP_MOD_ADD:
if (at->add_proc==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): add procedure is not defined for this attribute ('%s')\n",at->name,0,0);
break;
}
if (c_mod->ml_bvalues==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): no values given to add for attribute '%s'\n",at->name,0,0);
break;
}
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): adding new values for attribute '%s'\n",at->name,0,0);
for(i=0,at_val=c_mod->ml_bvalues[0];at_val!=NULL;i++,at_val=c_mod->ml_bvalues[i])
{
if (at->expect_return & BACKSQL_ADD)
{
pno=1;
SQLBindParameter(sth,1,SQL_PARAM_OUTPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&prc,0,0);
}
else
pno=0;
po=(at->param_order & BACKSQL_ADD)>0;
SQLBindParameter(sth,(SQLUSMALLINT)(pno+1+po),SQL_PARAM_INPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&e_id.keyval,0,0);
//check for syntax needed here - maybe need binary bind?
SQLBindParameter(sth,(SQLUSMALLINT)(pno+2-po),SQL_PARAM_INPUT,SQL_C_CHAR,SQL_CHAR,0,0,at_val->bv_val,at_val->bv_len,0);
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): executing '%s'\n",at->add_proc,0,0);
rc=SQLExecDirect(sth,at->add_proc,SQL_NTS);
if (rc!=SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): add_proc execution failed\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,sth,rc);
}
}
break;
case LDAP_MOD_DELETE:
if (at->delete_proc==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): delete procedure is not defined for this attribute ('%s')\n",at->name,0,0);
break;
}
if (c_mod->ml_bvalues==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): no values given to delete for attribute '%s' -- deleting all values\n",at->name,0,0);
goto del_all;
}
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): deleting values for attribute '%s'\n",at->name,0,0);
for(i=0,at_val=c_mod->ml_bvalues[0];at_val!=NULL;i++,at_val=c_mod->ml_bvalues[i])
{
if (at->expect_return & BACKSQL_DEL)
{
pno=1;
SQLBindParameter(sth,1,SQL_PARAM_OUTPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&prc,0,0);
}
else
pno=0;
po=(at->param_order & BACKSQL_DEL)>0;
SQLBindParameter(sth,(SQLUSMALLINT)(pno+1+po),SQL_PARAM_INPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&e_id.keyval,0,0);
//check for syntax needed here - maybe need binary bind?
SQLBindParameter(sth,(SQLUSMALLINT)(pno+2-po),SQL_PARAM_INPUT,SQL_C_CHAR,SQL_CHAR,0,0,at_val->bv_val,at_val->bv_len,0);
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): executing '%s'\n",at->delete_proc,0,0);
rc=SQLExecDirect(sth,at->delete_proc,SQL_NTS);
if (rc!=SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_modify(): delete_proc execution failed\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,sth,rc);
}
}
break;
}
SQLFreeStmt(sth,SQL_RESET_PARAMS);
}
SQLFreeStmt(sth,SQL_DROP);
send_ldap_result(conn,op,LDAP_SUCCESS,"",NULL,NULL,NULL);
Debug(LDAP_DEBUG_TRACE,"<==backsql_modify()\n",0,0,0);
return 0;
}
int backsql_modrdn(BackendDB *be,Connection *conn,Operation *op,
const char *dn,const char *ndn,const char *newrdn,int deleteoldrdn,const char *newSuperior)
{
Debug(LDAP_DEBUG_TRACE,"==>backsql_modrdn()\n",0,0,0);
return 0;
}
int backsql_add(BackendDB *be,Connection *conn,Operation *op,Entry *e)
{
backsql_info *bi=(backsql_info*)be->be_private;
SQLHDBC dbh;
SQLHSTMT sth;
unsigned long new_keyval;
long i;
RETCODE rc;
backsql_oc_map_rec *oc=NULL;
backsql_at_map_rec *at_rec=NULL;
backsql_entryID parent_id,*res;
Attribute *at;
struct berval *at_val;
char *pdn;
int pno,po;//first parameter no, parameter order
int prc; //procedure return code
Debug(LDAP_DEBUG_TRACE,"==>backsql_add(): adding entry '%s'\n",e->e_dn,0,0);
if (dn_validate(e->e_dn)==NULL)
{
Debug(LDAP_DEBUG_TRACE,"==>backsql_add(): invalid dn '%s' -- aborting\n",e->e_dn,0,0);
}
for(at=e->e_attrs;at!=NULL;at=at->a_next)
{
//Debug(LDAP_DEBUG_TRACE,"backsql_add(): scanning entry -- %s\n",at->a_type,0,0);
if (!strcasecmp(at->a_type,"objectclass"))
{
oc=backsql_oc_with_name(bi,at->a_vals[0]->bv_val);
break;
}
}
if (oc==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_add(): cannot determine objectclass of entry -- aborting\n",0,0,0);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
if (oc->create_proc == NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_add(): create procedure is not defined for this objectclass - aborting\n",0,0,0);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
dbh=backsql_get_db_conn(be,conn);
if (!dbh)
{
Debug(LDAP_DEBUG_TRACE,"backsql_add(): could not get connection handle - exiting\n",0,0,0);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
SQLAllocStmt(dbh, &sth);
SQLBindParameter(sth,1,SQL_PARAM_OUTPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&new_keyval,0,0);
Debug(LDAP_DEBUG_TRACE,"backsql_add(): executing '%s'\n",oc->create_proc,0,0);
rc=SQLExecDirect(sth,oc->create_proc,SQL_NTS);
if (rc != SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_add(): create_proc execution failed\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,sth,rc);
SQLFreeStmt(sth,SQL_DROP);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
SQLFreeStmt(sth,SQL_RESET_PARAMS);
Debug(LDAP_DEBUG_TRACE,"backsql_add(): create_proc returned keyval=%d\n",new_keyval,0,0);
for(at=e->e_attrs;at!=NULL;at=at->a_next)
{
at_rec=backsql_at_with_name(oc,at->a_type);
if (at_rec==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_add(): attribute provided is not registered in this objectclass ('%s')\n",at->a_type,0,0);
continue;
}
if (at_rec->add_proc==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_add(): add procedure is not defined for this attribute ('%s')\n",at->a_type,0,0);
continue;
}
for(i=0,at_val=at->a_vals[0];at_val!=NULL;i++,at_val=at->a_vals[i])
{
if (at_rec->expect_return & BACKSQL_ADD)
{
pno=1;
SQLBindParameter(sth,1,SQL_PARAM_OUTPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&prc,0,0);
}
else
pno=0;
po=(at_rec->param_order & BACKSQL_ADD)>0;
SQLBindParameter(sth,(SQLUSMALLINT)(pno+1+po),SQL_PARAM_INPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&new_keyval,0,0);
//check for syntax needed here - maybe need binary bind?
SQLBindParameter(sth,(SQLUSMALLINT)(pno+2-po),SQL_PARAM_INPUT,SQL_C_CHAR,SQL_CHAR,0,0,at_val->bv_val,at_val->bv_len,0);
Debug(LDAP_DEBUG_TRACE,"backsql_add(): executing '%s'\n",at_rec->add_proc,0,0);
rc=SQLExecDirect(sth,at_rec->add_proc,SQL_NTS);
if (rc!=SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_add(): add_proc execution failed\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,sth,rc);
}
}
}
SQLFreeStmt(sth,SQL_RESET_PARAMS);
pdn=dn_parent(be,e->e_dn);
res=backsql_dn2id(bi,&parent_id,dbh,pdn);
if (res==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_add(): could not lookup parent entry for new record ('%s')\n",
pdn,0,0);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
free(pdn);
backsql_BindParamStr(sth,1,e->e_dn,BACKSQL_MAX_DN_LEN);
SQLBindParameter(sth,2,SQL_PARAM_INPUT,SQL_C_LONG,SQL_INTEGER,0,0,&oc->id,0,0);
SQLBindParameter(sth,3,SQL_PARAM_INPUT,SQL_C_LONG,SQL_INTEGER,0,0,&parent_id.id,0,0);
SQLBindParameter(sth,4,SQL_PARAM_INPUT,SQL_C_LONG,SQL_INTEGER,0,0,&new_keyval,0,0);
rc=SQLExecDirect(sth,bi->insentry_query,SQL_NTS);
if (rc != SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_add(): could not insert ldap_entries record\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,sth,rc);
//execute delete_proc to delete data added !!!
SQLFreeStmt(sth,SQL_DROP);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
SQLFreeStmt(sth,SQL_DROP);
send_ldap_result(conn,op,LDAP_SUCCESS,"",NULL,NULL,NULL);
return 0;
}
int backsql_delete(BackendDB *be,Connection *conn,Operation *op,
const char *dn,const char *ndn)
{
backsql_info *bi=(backsql_info*)be->be_private;
SQLHDBC dbh;
SQLHSTMT sth;
RETCODE rc;
backsql_oc_map_rec *oc=NULL;
backsql_entryID e_id,*res;
int pno;//first parameter no, parameter order
Debug(LDAP_DEBUG_TRACE,"==>backsql_delete(): deleting entry '%s'\n",ndn,0,0);
dbh=backsql_get_db_conn(be,conn);
if (!dbh)
{
Debug(LDAP_DEBUG_TRACE,"backsql_delete(): could not get connection handle - exiting\n",0,0,0);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
res=backsql_dn2id(bi,&e_id,dbh,(char*)ndn);
if (res==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_delete(): could not lookup entry id\n",0,0,0);
send_ldap_result(conn,op,LDAP_NO_SUCH_OBJECT,"",NULL,NULL,NULL);
return 1;
}
oc=backsql_oc_with_id(bi,e_id.oc_id);
if (oc==NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_delete(): cannot determine objectclass of entry -- aborting\n",0,0,0);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
if (oc->delete_proc == NULL)
{
Debug(LDAP_DEBUG_TRACE,"backsql_delete(): delete procedure is not defined for this objectclass - aborting\n",0,0,0);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
SQLAllocStmt(dbh, &sth);
if (oc->expect_return)
{
pno=1;
SQLBindParameter(sth,1,SQL_PARAM_OUTPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&rc,0,0);
}
else
pno=0;
SQLBindParameter(sth,(SQLUSMALLINT)(pno+1),SQL_PARAM_INPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&e_id.keyval,0,0);
//SQLBindParameter(sth,2,SQL_PARAM_OUTPUT,SQL_C_SLONG,SQL_INTEGER,0,0,&retcode,0,0);
Debug(LDAP_DEBUG_TRACE,"backsql_delete(): executing '%s'\n",oc->delete_proc,0,0);
rc=SQLExecDirect(sth,oc->delete_proc,SQL_NTS);
if (rc != SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_delete(): delete_proc execution failed\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,sth,rc);
SQLFreeStmt(sth,SQL_DROP);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
SQLFreeStmt(sth,SQL_RESET_PARAMS);
SQLBindParameter(sth,1,SQL_PARAM_INPUT,SQL_C_ULONG,SQL_INTEGER,0,0,&e_id.id,0,0);
rc=SQLExecDirect(sth,bi->delentry_query,SQL_NTS);
if (rc != SQL_SUCCESS)
{
Debug(LDAP_DEBUG_TRACE,"backsql_delete(): failed to delete record from ldap_entries\n",0,0,0);
backsql_PrintErrors(bi->db_env,dbh,sth,rc);
SQLFreeStmt(sth,SQL_DROP);
send_ldap_result(conn,op,LDAP_OTHER,"","SQL-backend error",NULL,NULL);
return 1;
}
SQLFreeStmt(sth,SQL_DROP);
send_ldap_result(conn,op,LDAP_SUCCESS,"",NULL,NULL,NULL);
Debug(LDAP_DEBUG_TRACE,"<==backsql_delete()\n",0,0,0);
return 0;
}
#endif /* SLAPD_SQL */
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