/*
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is Mozilla Communicator client code, released
 * March 31, 1998.
 *
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation. Portions created by Netscape are
 * Copyright (C) 1998-1999 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s):
 */
/*
 *  Copyright (c) 1990 Regents of the University of Michigan.
 *  All rights reserved.
 */
/*
 *  rename.c
 */

#if 0
#ifndef lint
static char copyright[] = "@(#) Copyright (c) 1990 Regents of the University of Michigan.\nAll rights reserved.\n";
#endif
#endif

#include "ldap-int.h"

/*
 * ldap_rename - initiate an ldap modifyDN operation. Parameters:
 *
 *      ld              LDAP descriptor
 *      dn              DN of the object to modify
 *      newrdn          RDN that will form leftmost component of entry's new name
 *      newparent       if present, this is the Distinguished Name of the entry
 *                      which becomes the immediate parent of the existing entry
 *      deleteoldrdn    nonzero means to delete old rdn values from the entry
 *                      while zero means to retain them as attributes of the entry
 *      serverctrls     list of LDAP server controls
 *      clientctrls     list of client controls
 *      msgidp          this result parameter will be set to the message id of the
 *                      request if the ldap_rename() call succeeds
 *
 * Example:
 *      int rc;
 *      rc = ldap_rename( ld, dn, newrdn, newparent, deleteoldrdn, serverctrls, clientctrls, &msgid );
 */
int
LDAP_CALL
ldap_rename(
           LDAP *ld,
           const char *dn,
           const char *newrdn,
           const char *newparent,
           int deleteoldrdn,
           LDAPControl  **serverctrls,
           LDAPControl  **clientctrls,  /* not used for anything yet */
           int *msgidp
)
{
        BerElement      *ber;
        int             rc, err;

        /*
         * A modify dn request looks like this:
         *      ModifyDNRequest ::= SEQUENCE {
         *              entry           LDAPDN,
         *              newrdn          RelativeLDAPDN,
         *              newparent       [0] LDAPDN OPTIONAL,
         *              deleteoldrdn    BOOLEAN
         *      }
         */

        LDAPDebug( LDAP_DEBUG_TRACE, "ldap_rename\n", 0, 0, 0 );

        if ( !NSLDAPI_VALID_LDAP_POINTER( ld )) {
                return( LDAP_PARAM_ERROR );
        }
        if ( NULL == newrdn) {
                LDAP_SET_LDERRNO( ld, LDAP_PARAM_ERROR, NULL, NULL );
                return( LDAP_PARAM_ERROR );
        }

        /* only ldapv3 or higher can do a proper rename
         * (i.e. with non-NULL newparent and/or controls)
         */

        if (( NSLDAPI_LDAP_VERSION( ld ) < LDAP_VERSION3 )
            && ((newparent != NULL) || (serverctrls != NULL)
            || (clientctrls != NULL))) {
                LDAP_SET_LDERRNO( ld, LDAP_NOT_SUPPORTED, NULL, NULL );
                return( LDAP_NOT_SUPPORTED );
        }

        if ( msgidp == NULL ) {
                LDAP_SET_LDERRNO( ld, LDAP_PARAM_ERROR, NULL, NULL );
                return( LDAP_PARAM_ERROR );
        }

        LDAP_MUTEX_LOCK( ld, LDAP_MSGID_LOCK );
        *msgidp = ++ld->ld_msgid;
        LDAP_MUTEX_UNLOCK( ld, LDAP_MSGID_LOCK );

        /* see if modRDN or modDN is handled by the cache */
        if ( ld->ld_cache_on ) {
                if ( newparent == NULL && ld->ld_cache_modrdn != NULL ) {
                        LDAP_MUTEX_LOCK( ld, LDAP_CACHE_LOCK );
                        if ( (rc = (ld->ld_cache_modrdn)( ld, *msgidp,
                            LDAP_REQ_MODRDN, dn, newrdn, deleteoldrdn ))
                            != 0 ) {
                                *msgidp = rc;
                                LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
                                return( LDAP_SUCCESS );
                        }
                        LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
#if 0
                } else if ( ld->ld_cache_rename != NULL ) {
                        LDAP_MUTEX_LOCK( ld, LDAP_CACHE_LOCK );
                        if ( (rc = (ld->ld_cache_rename)( ld, *msgidp,
                            LDAP_REQ_MODDN, dn, newrdn, newparent,
                            deleteoldrdn )) != 0 ) {
                                *msgidp = rc;
                                return( LDAP_SUCCESS );
                        }
                        LDAP_MUTEX_UNLOCK( ld, LDAP_CACHE_LOCK );
#endif
                }
        }

        /* create a message to send */
        if (( err = nsldapi_alloc_ber_with_options( ld, &ber ))
            != LDAP_SUCCESS ) {
                return( err );
        }

        /* fill it in */
        if ( ber_printf( ber, "{it{ssb", *msgidp, LDAP_REQ_MODDN, dn,
            newrdn, deleteoldrdn ) == -1 ) {
                LDAP_SET_LDERRNO( ld, LDAP_ENCODING_ERROR, NULL, NULL );
                ber_free( ber, 1 );
                return( LDAP_ENCODING_ERROR );
        }

        if ( newparent == NULL ) {
                if ( ber_printf( ber, "}" ) == -1 ) {
                        LDAP_SET_LDERRNO( ld, LDAP_ENCODING_ERROR, NULL, NULL );
                        ber_free( ber, 1 );
                        return( LDAP_ENCODING_ERROR );
                }
        } else {
                if ( ber_printf( ber, "ts}", LDAP_TAG_NEWSUPERIOR, newparent )
                    == -1 ) {
                        LDAP_SET_LDERRNO( ld, LDAP_ENCODING_ERROR, NULL, NULL );
                        ber_free( ber, 1 );
                        return( LDAP_ENCODING_ERROR );
                }
        }

        if (( rc = nsldapi_put_controls( ld, serverctrls, 1, ber ))
            != LDAP_SUCCESS ) {
                ber_free( ber, 1 );
                return( rc );
        }

        /* send the message */
        rc = nsldapi_send_initial_request( ld, *msgidp, LDAP_REQ_MODDN,
                (char *) dn, ber );
        *msgidp = rc;
        return( rc < 0 ? LDAP_GET_LDERRNO( ld, NULL, NULL ) : LDAP_SUCCESS );
}

int
LDAP_CALL
ldap_modrdn2( LDAP *ld, const char *dn, const char *newrdn, int deleteoldrdn )
{
        int             msgid;

        if ( ldap_rename( ld, dn, newrdn, NULL, deleteoldrdn, NULL, NULL, &msgid ) == LDAP_SUCCESS ) {
                return( msgid );
        } else {
                return( -1 );   /* error is in ld handle */
        }
}

int
LDAP_CALL
ldap_modrdn( LDAP *ld, const char *dn, const char *newrdn )
{
        return( ldap_modrdn2( ld, dn, newrdn, 1 ) );
}

int
LDAP_CALL
ldap_rename_s(
           LDAP *ld,
           const char *dn,
           const char *newrdn,
           const char *newparent,
           int deleteoldrdn,
           LDAPControl  **serverctrls,
           LDAPControl  **clientctrls  /* not used for anything yet */
)
{
        int             msgid;
        LDAPMessage     *res;

        if ( ldap_rename( ld, dn, newrdn, newparent, deleteoldrdn, serverctrls, clientctrls, &msgid ) != LDAP_SUCCESS ) {
                return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );
        }

        if ( msgid == -1 )
                return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );

        if ( ldap_result( ld, msgid, 1, (struct timeval *) NULL, &res ) == -1 )
                return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );

        return( ldap_result2error( ld, res, 1 ) );
}

int
LDAP_CALL
ldap_modrdn2_s( LDAP *ld, const char *dn, const char *newrdn, int deleteoldrdn )
{
        int             msgid;
        LDAPMessage     *res;

        if ( (msgid = ldap_modrdn2( ld, dn, newrdn, deleteoldrdn )) == -1 )
                return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );

        if ( ldap_result( ld, msgid, 1, (struct timeval *) NULL, &res ) == -1 )
                return( LDAP_GET_LDERRNO( ld, NULL, NULL ) );

        return( ldap_result2error( ld, res, 1 ) );
}

int
LDAP_CALL
ldap_modrdn_s( LDAP *ld, const char *dn, const char *newrdn )
{
        return( ldap_modrdn2_s( ld, dn, newrdn, 1 ) );
}