Add referral generator

[openldap] / servers / slapd / delete.c

diff --git a/servers/slapd/delete.c b/servers/slapd/delete.c
index 66f68d9d89bbf96f0ca0b05d728a4f28ea470f3b..d086e1fde1c6ed943e693cafdfab458e35adeadb 100644 (file)
--- a/servers/slapd/delete.c
+++ b/servers/slapd/delete.c
@@ -1,3 +1,8 @@
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 /*
  * Copyright (c) 1995 Regents of the University of Michigan.
  * All rights reserved.
@@ -17,16 +22,19 @@
 #include <ac/string.h>
 #include <ac/socket.h>
 
+#include "ldap_pvt.h"
 #include "slap.h"
 
-void
+int
 do_delete(
     Connection *conn,
     Operation  *op
 )
 {
-       char    *ndn;
+       char *dn, *ndn = NULL;
+       const char *text;
        Backend *be;
+       int rc;
 
        Debug( LDAP_DEBUG_TRACE, "do_delete\n", 0, 0, 0 );
 
@@ -36,17 +44,29 @@ do_delete(
         *      DelRequest := DistinguishedName
         */
 
-       if ( ber_scanf( op->o_ber, "a", &ndn ) == LBER_ERROR ) {
+       if ( ber_scanf( op->o_ber, "a", &dn ) == LBER_ERROR ) {
                Debug( LDAP_DEBUG_ANY, "ber_scanf failed\n", 0, 0, 0 );
-               send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR, NULL, "" );
-               return;
+               send_ldap_disconnect( conn, op,
+                       LDAP_PROTOCOL_ERROR, "decoding error" );
+               return SLAPD_DISCONNECT;
        }
 
-       Debug( LDAP_DEBUG_ARGS, "do_delete: dn (%s)\n", ndn, 0, 0 );
+       if( ( rc = get_ctrls( conn, op, 1 ) ) != LDAP_SUCCESS ) {
+               Debug( LDAP_DEBUG_ANY, "do_delete: get_ctrls failed\n", 0, 0, 0 );
+               goto cleanup;
+       } 
+
+       ndn = ch_strdup( dn );
 
-       dn_normalize_case( ndn );
+       if(     dn_normalize( ndn ) == NULL ) {
+               Debug( LDAP_DEBUG_ANY, "do_delete: invalid dn (%s)\n", dn, 0, 0 );
+               send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
+                   "invalid DN", NULL, NULL );
+               goto cleanup;
+       }
 
-       Debug( LDAP_DEBUG_STATS, "DEL dn=\"%s\"\n", ndn, 0, 0 );
+       Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d DEL dn=\"%s\"\n",
+               op->o_connid, op->o_opid, dn, 0, 0 );
 
        /*
         * We could be serving multiple database backends.  Select the
@@ -54,14 +74,35 @@ do_delete(
         * if we don't hold it.
         */
        if ( (be = select_backend( ndn )) == NULL ) {
-               free( ndn );
-               send_ldap_result( conn, op, LDAP_PARTIAL_RESULTS, NULL,
-                   default_referral );
-               return;
+               send_ldap_result( conn, op, rc = LDAP_REFERRAL,
+                       NULL, NULL, default_referral, NULL );
+               goto cleanup;
+       }
+
+       /* make sure this backend recongizes critical controls */
+       rc = backend_check_controls( be, conn, op, &text ) ;
+       if( rc != LDAP_SUCCESS ) {
+               send_ldap_result( conn, op, rc,
+                       NULL, text, NULL, NULL );
+               goto cleanup;
        }
 
-       /* alias suffix if approp */
-       ndn = suffixAlias( ndn, op, be );
+       /* check for referrals */
+       rc = backend_check_referrals( be, conn, op, dn, ndn );
+       if ( rc != LDAP_SUCCESS ) {
+               goto cleanup;
+       }
+
+       if ( global_readonly || be->be_readonly ) {
+               Debug( LDAP_DEBUG_ANY, "do_delete: database is read-only\n",
+                      0, 0, 0 );
+               send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+                                 NULL, "directory is read-only", NULL, NULL );
+               goto cleanup;
+       }
+
+       /* deref suffix alias if appropriate */
+       ndn = suffix_alias( be, ndn );
 
        /*
         * do the delete if 1 && (2 || 3)
@@ -69,22 +110,35 @@ do_delete(
         * 2) this backend is master for what it holds;
         * 3) it's a replica and the dn supplied is the update_ndn.
         */
-       if ( be->be_delete != NULL ) {
+       if ( be->be_delete ) {
                /* do the update here */
+#ifndef SLAPD_MULTIMASTER
                if ( be->be_update_ndn == NULL ||
                        strcmp( be->be_update_ndn, op->o_ndn ) == 0 )
+#endif
                {
-                       if ( (*be->be_delete)( be, conn, op, ndn ) == 0 ) {
-                               replog( be, LDAP_REQ_DELETE, ndn, NULL, 0 );
+                       if ( (*be->be_delete)( be, conn, op, dn, ndn ) == 0 ) {
+#ifdef SLAPD_MULTIMASTER
+                               if (be->be_update_ndn == NULL ||
+                                       strcmp( be->be_update_ndn, op->o_ndn ))
+#endif
+                               {
+                                       replog( be, op, dn, NULL );
+                               }
                        }
+#ifndef SLAPD_MULTIMASTER
                } else {
-                       send_ldap_result( conn, op, LDAP_PARTIAL_RESULTS, NULL,
-                           default_referral );
+                       send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
+                               be->be_update_refs ? be->be_update_refs : default_referral, NULL );
+#endif
                }
+
        } else {
-               send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM, NULL,
-                   "Function not implemented" );
+               send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
+                       NULL, "operation not supported within namingContext", NULL, NULL );
        }
-
-       free( ndn );
+cleanup:
+       if( ndn != NULL ) free( ndn );
+       free( dn );
+       return rc;
 }