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[openldap] / servers / slapd / back-sql / modify.c
1 /* $OpenLDAP$ */
2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
3  *
4  * Copyright 1999-2013 The OpenLDAP Foundation.
5  * Portions Copyright 1999 Dmitry Kovalev.
6  * Portions Copyright 2002 Pierangelo Masarati.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted only as authorized by the OpenLDAP
11  * Public License.
12  *
13  * A copy of this license is available in the file LICENSE in the
14  * top-level directory of the distribution or, alternatively, at
15  * <http://www.OpenLDAP.org/license.html>.
16  */
17 /* ACKNOWLEDGEMENTS:
18  * This work was initially developed by Dmitry Kovalev for inclusion
19  * by OpenLDAP Software.  Additional significant contributors include
20  * Pierangelo Masarati.
21  */
22
23 #include "portable.h"
24
25 #include <stdio.h>
26 #include <sys/types.h>
27 #include "ac/string.h"
28
29 #include "slap.h"
30 #include "proto-sql.h"
31
32 int
33 backsql_modify( Operation *op, SlapReply *rs )
34 {
35         backsql_info            *bi = (backsql_info*)op->o_bd->be_private;
36         SQLHDBC                 dbh = SQL_NULL_HDBC;
37         backsql_oc_map_rec      *oc = NULL;
38         backsql_srch_info       bsi = { 0 };
39         Entry                   m = { 0 }, *e = NULL;
40         int                     manageDSAit = get_manageDSAit( op );
41         SQLUSMALLINT            CompletionType = SQL_ROLLBACK;
42
43         /*
44          * FIXME: in case part of the operation cannot be performed
45          * (missing mapping, SQL write fails or so) the entire operation
46          * should be rolled-back
47          */
48         Debug( LDAP_DEBUG_TRACE, "==>backsql_modify(): modifying entry \"%s\"\n",
49                 op->o_req_ndn.bv_val, 0, 0 );
50
51         rs->sr_err = backsql_get_db_conn( op, &dbh );
52         if ( rs->sr_err != LDAP_SUCCESS ) {
53                 Debug( LDAP_DEBUG_TRACE, "   backsql_modify(): "
54                         "could not get connection handle - exiting\n", 
55                         0, 0, 0 );
56                 /*
57                  * FIXME: we don't want to send back 
58                  * excessively detailed messages
59                  */
60                 rs->sr_text = ( rs->sr_err == LDAP_OTHER )
61                         ? "SQL-backend error" : NULL;
62                 goto done;
63         }
64
65         bsi.bsi_e = &m;
66         rs->sr_err = backsql_init_search( &bsi, &op->o_req_ndn,
67                         LDAP_SCOPE_BASE, 
68                         (time_t)(-1), NULL, dbh, op, rs,
69                         slap_anlist_all_attributes,
70                         ( BACKSQL_ISF_MATCHED | BACKSQL_ISF_GET_ENTRY | BACKSQL_ISF_GET_OC ) );
71         switch ( rs->sr_err ) {
72         case LDAP_SUCCESS:
73                 break;
74
75         case LDAP_REFERRAL:
76                 if ( manageDSAit && !BER_BVISNULL( &bsi.bsi_e->e_nname ) &&
77                                 dn_match( &op->o_req_ndn, &bsi.bsi_e->e_nname ) )
78                 {
79                         rs->sr_err = LDAP_SUCCESS;
80                         rs->sr_text = NULL;
81                         rs->sr_matched = NULL;
82                         if ( rs->sr_ref ) {
83                                 ber_bvarray_free( rs->sr_ref );
84                                 rs->sr_ref = NULL;
85                         }
86                         break;
87                 }
88                 e = &m;
89                 /* fallthru */
90
91         default:
92                 Debug( LDAP_DEBUG_TRACE, "backsql_modify(): "
93                         "could not retrieve modifyDN ID - no such entry\n", 
94                         0, 0, 0 );
95                 if ( !BER_BVISNULL( &m.e_nname ) ) {
96                         /* FIXME: should always be true! */
97                         e = &m;
98
99                 } else {
100                         e = NULL;
101                 }
102                 goto done;
103         }
104
105         Debug( LDAP_DEBUG_TRACE, "   backsql_modify(): "
106                 "modifying entry \"%s\" (id=" BACKSQL_IDFMT ")\n", 
107                 bsi.bsi_base_id.eid_dn.bv_val,
108                 BACKSQL_IDARG(bsi.bsi_base_id.eid_id), 0 );
109
110         if ( get_assert( op ) &&
111                         ( test_filter( op, &m, get_assertion( op ) )
112                           != LDAP_COMPARE_TRUE ))
113         {
114                 rs->sr_err = LDAP_ASSERTION_FAILED;
115                 e = &m;
116                 goto done;
117         }
118
119         slap_mods_opattrs( op, &op->orm_modlist, 1 );
120
121         assert( bsi.bsi_base_id.eid_oc != NULL );
122         oc = bsi.bsi_base_id.eid_oc;
123
124         if ( !acl_check_modlist( op, &m, op->orm_modlist ) ) {
125                 rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
126                 e = &m;
127                 goto done;
128         }
129
130         rs->sr_err = backsql_modify_internal( op, rs, dbh, oc,
131                         &bsi.bsi_base_id, op->orm_modlist );
132         if ( rs->sr_err != LDAP_SUCCESS ) {
133                 e = &m;
134                 goto do_transact;
135         }
136
137         if ( BACKSQL_CHECK_SCHEMA( bi ) ) {
138                 char            textbuf[ SLAP_TEXT_BUFLEN ] = { '\0' };
139
140                 backsql_entry_clean( op, &m );
141
142                 bsi.bsi_e = &m;
143                 rs->sr_err = backsql_id2entry( &bsi, &bsi.bsi_base_id );
144                 if ( rs->sr_err != LDAP_SUCCESS ) {
145                         e = &m;
146                         goto do_transact;
147                 }
148
149                 rs->sr_err = entry_schema_check( op, &m, NULL, 0, 0, NULL,
150                         &rs->sr_text, textbuf, sizeof( textbuf ) );
151                 if ( rs->sr_err != LDAP_SUCCESS ) {
152                         Debug( LDAP_DEBUG_TRACE, "   backsql_modify(\"%s\"): "
153                                 "entry failed schema check -- aborting\n",
154                                 m.e_name.bv_val, 0, 0 );
155                         e = NULL;
156                         goto do_transact;
157                 }
158         }
159
160 do_transact:;
161         /*
162          * Commit only if all operations succeed
163          */
164         if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop ) {
165                 assert( e == NULL );
166                 CompletionType = SQL_COMMIT;
167         }
168
169         SQLTransact( SQL_NULL_HENV, dbh, CompletionType );
170
171 done:;
172         if ( e != NULL ) {
173                 if ( !access_allowed( op, e, slap_schema.si_ad_entry, NULL,
174                                         ACL_DISCLOSE, NULL ) )
175                 {
176                         rs->sr_err = LDAP_NO_SUCH_OBJECT;
177                         rs->sr_text = NULL;
178                         rs->sr_matched = NULL;
179                         if ( rs->sr_ref ) {
180                                 ber_bvarray_free( rs->sr_ref );
181                                 rs->sr_ref = NULL;
182                         }
183                 }
184         }
185
186         if ( op->o_noop && rs->sr_err == LDAP_SUCCESS ) {
187                 rs->sr_err = LDAP_X_NO_OPERATION;
188         }
189
190         send_ldap_result( op, rs );
191         slap_graduate_commit_csn( op );
192
193         if ( !BER_BVISNULL( &bsi.bsi_base_id.eid_ndn ) ) {
194                 (void)backsql_free_entryID( &bsi.bsi_base_id, 0, op->o_tmpmemctx );
195         }
196
197         if ( !BER_BVISNULL( &m.e_nname ) ) {
198                 backsql_entry_clean( op, &m );
199         }
200
201         if ( bsi.bsi_attrs != NULL ) {
202                 op->o_tmpfree( bsi.bsi_attrs, op->o_tmpmemctx );
203         }
204
205         if ( rs->sr_ref ) {
206                 ber_bvarray_free( rs->sr_ref );
207                 rs->sr_ref = NULL;
208         }
209
210         Debug( LDAP_DEBUG_TRACE, "<==backsql_modify()\n", 0, 0, 0 );
211
212         return rs->sr_err;
213 }
214