int
backsql_merge_from_clause(
backsql_info *bi,
struct berbuf *dest_from,
struct berval *src_from )
{
char *s, *p, *srcc, *pos, e;
struct berbuf res = BB_NULL;
#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE, "==>backsql_merge_from_clause(): "
"dest_from=\"%s\",src_from=\"%s\"\n",
dest_from ? dest_from->bb_val.bv_val : "<NULL>",
src_from->bv_val, 0 );
#endif /* BACKSQL_TRACE */
srcc = ch_strdup( src_from->bv_val );
p = srcc;
if ( dest_from != NULL ) {
res = *dest_from;
}
while ( *p ) {
s = backsql_get_table_spec( bi, &p );
#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE, "backsql_merge_from_clause(): "
"p=\"%s\" s=\"%s\"\n", p, s, 0 );
#endif /* BACKSQL_TRACE */
if ( BER_BVISNULL( &res.bb_val ) ) {
backsql_strcat_x( &res, NULL, s, NULL );
} else {
pos = strstr( res.bb_val.bv_val, s );
if ( pos == NULL || ( ( e = pos[ strlen( s ) ] ) != '\0' && e != ',' ) ) {
backsql_strfcat_x( &res, NULL, "cs", ',', s );
}
}
if ( s ) {
ch_free( s );
}
}
#ifdef BACKSQL_TRACE
Debug( LDAP_DEBUG_TRACE, "<==backsql_merge_from_clause()\n", 0, 0, 0 );
#endif /* BACKSQL_TRACE */
free( srcc );
*dest_from = res;
return 1;
}
static char *
backsql_get_table_spec( backsql_info *bi, char **p )
{
char *s, *q;
struct berbuf res = BB_NULL;
assert( p != NULL );
assert( *p != NULL );
s = *p;
while ( **p && **p != ',' ) {
(*p)++;
}
if ( **p ) {
*(*p)++ = '\0';
}
#define BACKSQL_NEXT_WORD { \
while ( *s && isspace( (unsigned char)*s ) ) s++; \
if ( !*s ) return res.bb_val.bv_val; \
q = s; \
while ( *q && !isspace( (unsigned char)*q ) ) q++; \
if ( *q ) *q++='\0'; \
}
BACKSQL_NEXT_WORD;
/* table name */
backsql_strcat_x( &res, NULL, s, NULL );
s = q;
BACKSQL_NEXT_WORD;
if ( strcasecmp( s, "AS" ) == 0 ) {
s = q;
BACKSQL_NEXT_WORD;
}
/* oracle doesn't understand "AS" :( and other RDBMSes don't need it */
backsql_strfcat_x( &res, NULL, "lbbsb",
STRLENOF( " " ), " ",
&bi->sql_aliasing,
&bi->sql_aliasing_quote,
s,
&bi->sql_aliasing_quote );
return res.bb_val.bv_val;
}
int
backsql_db_open(
BackendDB *bd,
ConfigReply *cr )
{
backsql_info *bi = (backsql_info*)bd->be_private;
struct berbuf bb = BB_NULL;
Connection conn = { 0 };
OperationBuffer opbuf;
Operation* op;
SQLHDBC dbh = SQL_NULL_HDBC;
void *thrctx = ldap_pvt_thread_pool_context();
Debug( LDAP_DEBUG_TRACE, "==>backsql_db_open(): "
"testing RDBMS connection\n", 0, 0, 0 );
if ( bi->sql_dbname == NULL ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"datasource name not specified "
"(use \"dbname\" directive in slapd.conf)\n", 0, 0, 0 );
return 1;
}
if ( bi->sql_concat_func == NULL ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"concat func not specified (use \"concat_pattern\" "
"directive in slapd.conf)\n", 0, 0, 0 );
if ( backsql_split_pattern( backsql_def_concat_func,
&bi->sql_concat_func, 2 ) ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"unable to parse pattern \"%s\"",
backsql_def_concat_func, 0, 0 );
return 1;
}
}
/*
* see back-sql.h for default values
*/
if ( BER_BVISNULL( &bi->sql_aliasing ) ) {
ber_str2bv( BACKSQL_ALIASING,
STRLENOF( BACKSQL_ALIASING ),
1, &bi->sql_aliasing );
}
if ( BER_BVISNULL( &bi->sql_aliasing_quote ) ) {
ber_str2bv( BACKSQL_ALIASING_QUOTE,
STRLENOF( BACKSQL_ALIASING_QUOTE ),
1, &bi->sql_aliasing_quote );
}
/*
* Prepare cast string as required
*/
if ( bi->sql_upper_func.bv_val ) {
char buf[1024];
if ( BACKSQL_UPPER_NEEDS_CAST( bi ) ) {
snprintf( buf, sizeof( buf ),
"%s(cast (" /* ? as varchar(%d))) */ ,
bi->sql_upper_func.bv_val );
ber_str2bv( buf, 0, 1, &bi->sql_upper_func_open );
snprintf( buf, sizeof( buf ),
/* (cast(? */ " as varchar(%d)))",
BACKSQL_MAX_DN_LEN );
ber_str2bv( buf, 0, 1, &bi->sql_upper_func_close );
} else {
snprintf( buf, sizeof( buf ), "%s(" /* ?) */ ,
bi->sql_upper_func.bv_val );
ber_str2bv( buf, 0, 1, &bi->sql_upper_func_open );
ber_str2bv( /* (? */ ")", 0, 1, &bi->sql_upper_func_close );
}
}
/* normalize filter values only if necessary */
bi->sql_caseIgnoreMatch = mr_find( "caseIgnoreMatch" );
assert( bi->sql_caseIgnoreMatch != NULL );
bi->sql_telephoneNumberMatch = mr_find( "telephoneNumberMatch" );
assert( bi->sql_telephoneNumberMatch != NULL );
if ( bi->sql_dbuser == NULL ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"user name not specified "
"(use \"dbuser\" directive in slapd.conf)\n", 0, 0, 0 );
return 1;
}
if ( BER_BVISNULL( &bi->sql_subtree_cond ) ) {
/*
* Prepare concat function for subtree search condition
*/
struct berval concat;
struct berval values[] = {
BER_BVC( "'%'" ),
BER_BVC( "?" ),
BER_BVNULL
};
struct berbuf bb = BB_NULL;
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"subtree search SQL condition not specified "
"(use \"subtree_cond\" directive in slapd.conf); "
"preparing default\n",
0, 0, 0);
if ( backsql_prepare_pattern( bi->sql_concat_func, values,
&concat ) ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"unable to prepare CONCAT pattern for subtree search",
0, 0, 0 );
return 1;
}
if ( bi->sql_upper_func.bv_val ) {
/*
* UPPER(ldap_entries.dn) LIKE UPPER(CONCAT('%',?))
*/
backsql_strfcat_x( &bb, NULL, "blbbb",
&bi->sql_upper_func,
(ber_len_t)STRLENOF( "(ldap_entries.dn) LIKE " ),
"(ldap_entries.dn) LIKE ",
&bi->sql_upper_func_open,
&concat,
&bi->sql_upper_func_close );
} else {
/*
* ldap_entries.dn LIKE CONCAT('%',?)
*/
backsql_strfcat_x( &bb, NULL, "lb",
(ber_len_t)STRLENOF( "ldap_entries.dn LIKE " ),
"ldap_entries.dn LIKE ",
&concat );
}
ch_free( concat.bv_val );
bi->sql_subtree_cond = bb.bb_val;
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"setting \"%s\" as default \"subtree_cond\"\n",
bi->sql_subtree_cond.bv_val, 0, 0 );
}
if ( bi->sql_children_cond.bv_val == NULL ) {
/*
* Prepare concat function for children search condition
*/
struct berval concat;
struct berval values[] = {
BER_BVC( "'%,'" ),
BER_BVC( "?" ),
BER_BVNULL
};
struct berbuf bb = BB_NULL;
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"children search SQL condition not specified "
"(use \"children_cond\" directive in slapd.conf); "
"preparing default\n",
0, 0, 0);
if ( backsql_prepare_pattern( bi->sql_concat_func, values,
&concat ) ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"unable to prepare CONCAT pattern for children search", 0, 0, 0 );
return 1;
}
if ( bi->sql_upper_func.bv_val ) {
/*
* UPPER(ldap_entries.dn) LIKE UPPER(CONCAT('%,',?))
*/
backsql_strfcat_x( &bb, NULL, "blbbb",
&bi->sql_upper_func,
(ber_len_t)STRLENOF( "(ldap_entries.dn) LIKE " ),
"(ldap_entries.dn) LIKE ",
&bi->sql_upper_func_open,
&concat,
&bi->sql_upper_func_close );
} else {
/*
* ldap_entries.dn LIKE CONCAT('%,',?)
*/
backsql_strfcat_x( &bb, NULL, "lb",
(ber_len_t)STRLENOF( "ldap_entries.dn LIKE " ),
"ldap_entries.dn LIKE ",
&concat );
}
ch_free( concat.bv_val );
bi->sql_children_cond = bb.bb_val;
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"setting \"%s\" as default \"children_cond\"\n",
bi->sql_children_cond.bv_val, 0, 0 );
}
if ( bi->sql_dn_match_cond.bv_val == NULL ) {
/*
* Prepare concat function for dn match search condition
*/
struct berbuf bb = BB_NULL;
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"DN match search SQL condition not specified "
"(use \"dn_match_cond\" directive in slapd.conf); "
"preparing default\n",
0, 0, 0);
if ( bi->sql_upper_func.bv_val ) {
/*
* UPPER(ldap_entries.dn)=?
*/
backsql_strfcat_x( &bb, NULL, "blbcb",
&bi->sql_upper_func,
(ber_len_t)STRLENOF( "(ldap_entries.dn)=" ),
"(ldap_entries.dn)=",
&bi->sql_upper_func_open,
'?',
&bi->sql_upper_func_close );
} else {
/*
* ldap_entries.dn=?
*/
backsql_strfcat_x( &bb, NULL, "l",
(ber_len_t)STRLENOF( "ldap_entries.dn=?" ),
"ldap_entries.dn=?" );
}
bi->sql_dn_match_cond = bb.bb_val;
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"setting \"%s\" as default \"dn_match_cond\"\n",
bi->sql_dn_match_cond.bv_val, 0, 0 );
}
if ( bi->sql_oc_query == NULL ) {
if ( BACKSQL_CREATE_NEEDS_SELECT( bi ) ) {
bi->sql_oc_query =
ch_strdup( backsql_def_needs_select_oc_query );
} else {
bi->sql_oc_query = ch_strdup( backsql_def_oc_query );
}
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"objectclass mapping SQL statement not specified "
"(use \"oc_query\" directive in slapd.conf)\n",
0, 0, 0 );
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"setting \"%s\" by default\n", bi->sql_oc_query, 0, 0 );
}
if ( bi->sql_at_query == NULL ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"attribute mapping SQL statement not specified "
"(use \"at_query\" directive in slapd.conf)\n",
0, 0, 0 );
Debug(LDAP_DEBUG_TRACE, "backsql_db_open(): "
"setting \"%s\" by default\n",
backsql_def_at_query, 0, 0 );
bi->sql_at_query = ch_strdup( backsql_def_at_query );
}
if ( bi->sql_insentry_stmt == NULL ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"entry insertion SQL statement not specified "
"(use \"insentry_stmt\" directive in slapd.conf)\n",
0, 0, 0 );
Debug(LDAP_DEBUG_TRACE, "backsql_db_open(): "
"setting \"%s\" by default\n",
backsql_def_insentry_stmt, 0, 0 );
bi->sql_insentry_stmt = ch_strdup( backsql_def_insentry_stmt );
}
if ( bi->sql_delentry_stmt == NULL ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"entry deletion SQL statement not specified "
"(use \"delentry_stmt\" directive in slapd.conf)\n",
0, 0, 0 );
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"setting \"%s\" by default\n",
backsql_def_delentry_stmt, 0, 0 );
bi->sql_delentry_stmt = ch_strdup( backsql_def_delentry_stmt );
}
if ( bi->sql_renentry_stmt == NULL ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"entry deletion SQL statement not specified "
"(use \"renentry_stmt\" directive in slapd.conf)\n",
0, 0, 0 );
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"setting \"%s\" by default\n",
backsql_def_renentry_stmt, 0, 0 );
bi->sql_renentry_stmt = ch_strdup( backsql_def_renentry_stmt );
}
if ( bi->sql_delobjclasses_stmt == NULL ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"objclasses deletion SQL statement not specified "
"(use \"delobjclasses_stmt\" directive in slapd.conf)\n",
0, 0, 0 );
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"setting \"%s\" by default\n",
backsql_def_delobjclasses_stmt, 0, 0 );
bi->sql_delobjclasses_stmt = ch_strdup( backsql_def_delobjclasses_stmt );
}
/* This should just be to force schema loading */
connection_fake_init2( &conn, &opbuf, thrctx, 0 );
op = &opbuf.ob_op;
op->o_bd = bd;
if ( backsql_get_db_conn( op, &dbh ) != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"connection failed, exiting\n", 0, 0, 0 );
return 1;
}
if ( backsql_load_schema_map( bi, dbh ) != LDAP_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"schema mapping failed, exiting\n", 0, 0, 0 );
return 1;
}
if ( backsql_free_db_conn( op, dbh ) != SQL_SUCCESS ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"connection free failed\n", 0, 0, 0 );
}
if ( !BACKSQL_SCHEMA_LOADED( bi ) ) {
Debug( LDAP_DEBUG_TRACE, "backsql_db_open(): "
"test failed, schema map not loaded - exiting\n",
0, 0, 0 );
return 1;
}
/*
* Prepare ID selection query
*/
if ( bi->sql_id_query == NULL ) {
/* no custom id_query provided */
if ( bi->sql_upper_func.bv_val == NULL ) {
backsql_strcat_x( &bb, NULL, backsql_id_query, "dn=?", NULL );
} else {
if ( BACKSQL_HAS_LDAPINFO_DN_RU( bi ) ) {
backsql_strcat_x( &bb, NULL, backsql_id_query,
"dn_ru=?", NULL );
} else {
if ( BACKSQL_USE_REVERSE_DN( bi ) ) {
backsql_strfcat_x( &bb, NULL, "sbl",
backsql_id_query,
&bi->sql_upper_func,
(ber_len_t)STRLENOF( "(dn)=?" ), "(dn)=?" );
} else {
backsql_strfcat_x( &bb, NULL, "sblbcb",
backsql_id_query,
&bi->sql_upper_func,
(ber_len_t)STRLENOF( "(dn)=" ), "(dn)=",
&bi->sql_upper_func_open,
'?',
&bi->sql_upper_func_close );
}
}
}
bi->sql_id_query = bb.bb_val.bv_val;
}
/*
* Prepare children count query
*/
BER_BVZERO( &bb.bb_val );
bb.bb_len = 0;
backsql_strfcat_x( &bb, NULL, "sbsb",
"SELECT COUNT(distinct subordinates.id) "
"FROM ldap_entries,ldap_entries ",
&bi->sql_aliasing, "subordinates "
"WHERE subordinates.parent=ldap_entries.id AND ",
&bi->sql_dn_match_cond );
bi->sql_has_children_query = bb.bb_val.bv_val;
/*
* Prepare DN and objectClass aliasing bit of query
*/
BER_BVZERO( &bb.bb_val );
bb.bb_len = 0;
backsql_strfcat_x( &bb, NULL, "sbbsbsbbsb",
" ", &bi->sql_aliasing, &bi->sql_aliasing_quote,
"objectClass", &bi->sql_aliasing_quote,
",ldap_entries.dn ", &bi->sql_aliasing,
&bi->sql_aliasing_quote, "dn", &bi->sql_aliasing_quote );
bi->sql_dn_oc_aliasing = bb.bb_val;
/* should never happen! */
assert( bd->be_nsuffix != NULL );
if ( BER_BVISNULL( &bd->be_nsuffix[ 1 ] ) ) {
/* enable if only one suffix is defined */
bi->sql_flags |= BSQLF_USE_SUBTREE_SHORTCUT;
}
bi->sql_flags |= BSQLF_CHECK_SCHEMA;
Debug( LDAP_DEBUG_TRACE, "<==backsql_db_open(): "
"test succeeded, schema map loaded\n", 0, 0, 0 );
return 0;
}