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/** BEGIN COPYRIGHT BLOCK
* This Program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License as published by the Free Software
* Foundation; version 2 of the License.
*
* This Program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this Program; if not, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA.
*
* In addition, as a special exception, Red Hat, Inc. gives You the additional
* right to link the code of this Program with code not covered under the GNU
* General Public License ("Non-GPL Code") and to distribute linked combinations
* including the two, subject to the limitations in this paragraph. Non-GPL Code
* permitted under this exception must only link to the code of this Program
* through those well defined interfaces identified in the file named EXCEPTION
* found in the source code files (the "Approved Interfaces"). The files of
* Non-GPL Code may instantiate templates or use macros or inline functions from
* the Approved Interfaces without causing the resulting work to be covered by
* the GNU General Public License. Only Red Hat, Inc. may make changes or
* additions to the list of Approved Interfaces. You must obey the GNU General
* Public License in all respects for all of the Program code and other code used
* in conjunction with the Program except the Non-GPL Code covered by this
* exception. If you modify this file, you may extend this exception to your
* version of the file, but you are not obligated to do so. If you do not wish to
* provide this exception without modification, you must delete this exception
* statement from your version and license this file solely under the GPL without
* exception.
*
*
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
* END COPYRIGHT BLOCK **/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
/*
* urp_glue.c - Update Resolution Procedures - Glue
*/
#include "slapi-plugin.h"
#include "repl5.h"
#include "urp.h"
#define RDNBUFSIZE 2048
extern int slapi_log_urp;
/*
* Check if the entry is glue.
*/
int
is_glue_entry(const Slapi_Entry* entry)
{
/* JCMREPL - Is there a more efficient way to do this? */
return slapi_entry_attr_hasvalue(entry, SLAPI_ATTR_OBJECTCLASS, "glue");
}
/* returns PR_TRUE if the entry is a glue entry, PR_FALSE otherwise
sets the gluecsn if it is a glue entry - gluecsn may (but should not) be NULL */
PRBool
get_glue_csn(const Slapi_Entry *entry, const CSN **gluecsn)
{
PRBool isglue = PR_FALSE;
Slapi_Attr *oc_attr = NULL;
/* cast away const - entry */
if (entry_attr_find_wsi((Slapi_Entry*)entry, SLAPI_ATTR_OBJECTCLASS, &oc_attr) == ATTRIBUTE_PRESENT)
{
Slapi_Value *glue_value = NULL;
struct berval v;
v.bv_val = "glue";
v.bv_len = strlen(v.bv_val);
if (attr_value_find_wsi(oc_attr, &v, &glue_value) == VALUE_PRESENT)
{
isglue = PR_TRUE;
*gluecsn = value_get_csn(glue_value, CSN_TYPE_VALUE_UPDATED);
}
}
return isglue;
}
/*
* Submit a Modify operation to turn the Entry into Glue.
*/
int
entry_to_glue(char *sessionid, const Slapi_Entry* entry, const char *reason, CSN *opcsn)
{
int op_result = 0;
const char *dn;
char ebuf[BUFSIZ];
slapi_mods smods;
Slapi_Attr *attr;
dn = slapi_entry_get_dn_const (entry);
slapi_mods_init(&smods, 4);
/*
richm: sometimes the entry is already a glue entry (how did that happen?)
OR
the entry is already objectclass extensibleObject or already has the
conflict attribute and/or value
*/
if (!slapi_entry_attr_hasvalue(entry, SLAPI_ATTR_OBJECTCLASS, "glue"))
{
slapi_mods_add_string( &smods, LDAP_MOD_ADD, SLAPI_ATTR_OBJECTCLASS, "glue" );
if (!slapi_entry_attr_hasvalue(entry, SLAPI_ATTR_OBJECTCLASS, "extensibleobject"))
slapi_mods_add_string( &smods, LDAP_MOD_ADD, SLAPI_ATTR_OBJECTCLASS, "extensibleobject" );
}
else
{
slapi_log_error(SLAPI_LOG_REPL, repl_plugin_name,
"%s: Target entry %s is already a glue entry reason %s\n",
sessionid, escape_string(dn, ebuf), reason);
}
if (slapi_entry_attr_find (entry, ATTR_NSDS5_REPLCONFLICT, &attr) == 0)
{
slapi_mods_add_string( &smods, LDAP_MOD_REPLACE, ATTR_NSDS5_REPLCONFLICT, reason);
}
else
{
slapi_mods_add_string( &smods, LDAP_MOD_ADD, ATTR_NSDS5_REPLCONFLICT, reason);
}
if (slapi_mods_get_num_mods(&smods) > 0)
{
op_result = urp_fixup_modify_entry (NULL, dn, opcsn, &smods, 0);
if (op_result == LDAP_SUCCESS)
{
slapi_log_error (slapi_log_urp, repl_plugin_name,
"%s: Turned the entry %s to glue, reason %s\n",
sessionid, escape_string(dn, ebuf), reason);
}
}
slapi_mods_done(&smods);
return op_result;
}
static const char *glue_entry =
"dn: %s\n"
"%s"
"objectclass: top\n"
"objectclass: extensibleObject\n" /* JCMREPL - To avoid schema checking. */
"objectclass: glue\n"
"nsuniqueid: %s\n"
"%s: %s\n"; /* Add why it's been created */
static int
do_create_glue_entry(const Slapi_RDN *rdn, const Slapi_DN *superiordn, const char *uniqueid, const char *reason, CSN *opcsn)
{
int op_result= LDAP_OPERATIONS_ERROR;
int rdnval_index = 0;
int rdntype_len, rdnval_len, rdnpair_len, rdnstr_len, alloc_len;
Slapi_Entry *e;
Slapi_DN *sdn = NULL;
Slapi_RDN *newrdn = slapi_rdn_new_rdn(rdn);
char *estr, *rdnstr, *rdntype, *rdnval, *rdnpair;
sdn = slapi_sdn_new_dn_byval(slapi_sdn_get_ndn(superiordn));
slapi_sdn_add_rdn(sdn,rdn);
/* must take care of multi-valued rdn: split rdn into different lines introducing
* '\n' between each type/value pair.
*/
alloc_len = RDNBUFSIZE;
rdnstr = slapi_ch_malloc(alloc_len);
rdnpair = rdnstr;
*rdnpair = '\0'; /* so that strlen(rdnstr) may return 0 the first time it's called */
while ((rdnval_index = slapi_rdn_get_next(newrdn, rdnval_index, &rdntype, &rdnval)) != -1) {
rdntype_len = strlen(rdntype);
rdnval_len = strlen(rdnval);
rdnpair_len = LDIF_SIZE_NEEDED(rdntype_len, rdnval_len);
rdnstr_len = strlen(rdnstr);
if ((rdnstr_len + rdnpair_len + 1) > alloc_len) {
alloc_len += (rdnpair_len + 1);
rdnstr = slapi_ch_realloc(rdnstr, alloc_len);
rdnpair = &rdnstr[rdnstr_len];
}
slapi_ldif_put_type_and_value_with_options(&rdnpair, rdntype,
rdnval, rdnval_len, LDIF_OPT_NOWRAP);
*rdnpair = '\0';
}
estr= slapi_ch_smprintf(glue_entry, slapi_sdn_get_ndn(sdn), rdnstr, uniqueid,
ATTR_NSDS5_REPLCONFLICT, reason);
slapi_ch_free((void**)&rdnstr);
slapi_rdn_done(newrdn);
slapi_ch_free((void**)&newrdn);
e = slapi_str2entry( estr, 0 );
PR_ASSERT(e!=NULL);
if ( e!=NULL )
{
slapi_entry_set_uniqueid (e, slapi_ch_strdup(uniqueid));
op_result = urp_fixup_add_entry (e, NULL, NULL, opcsn, 0);
}
slapi_ch_free_string(&estr);
slapi_sdn_free(&sdn);
return op_result;
}
int
create_glue_entry ( Slapi_PBlock *pb, char *sessionid, Slapi_DN *dn, const char *uniqueid, CSN *opcsn )
{
int op_result;
const char *dnstr;
if ( slapi_sdn_get_dn (dn) )
dnstr = slapi_sdn_get_dn (dn);
else
dnstr = "";
if ( NULL == uniqueid )
{
op_result = LDAP_OPERATIONS_ERROR;
slapi_log_error (SLAPI_LOG_FATAL, repl_plugin_name,
"%s: Can't create glue %s, uniqueid=NULL\n", sessionid, dnstr);
}
else
{
Slapi_Backend *backend;
Slapi_DN *superiordn = slapi_sdn_new();
Slapi_RDN *rdn= slapi_rdn_new();
int done= 0;
slapi_pblock_get( pb, SLAPI_BACKEND, &backend );
slapi_sdn_get_backend_parent ( dn, superiordn, backend );
slapi_sdn_get_rdn ( dn, rdn );
while(!done)
{
op_result= do_create_glue_entry(rdn, superiordn, uniqueid, "missingEntry", opcsn);
switch(op_result)
{
case LDAP_SUCCESS:
slapi_log_error ( SLAPI_LOG_FATAL, repl_plugin_name,
"%s: Created glue entry %s uniqueid=%s reason missingEntry\n",
sessionid, dnstr, uniqueid);
done= 1;
break;
case LDAP_NO_SUCH_OBJECT:
/* The parent is missing */
{
/* JCMREPL - Create the parent ... recursion?... but what's the uniqueid? */
PR_ASSERT(0); /* JCMREPL */
}
default:
slapi_log_error ( SLAPI_LOG_FATAL, repl_plugin_name,
"%s: Can't created glue entry %s uniqueid=%s, error %d\n",
sessionid, dnstr, uniqueid, op_result);
break;
}
/* JCMREPL - Could get trapped in this loop forever! */
}
slapi_rdn_free ( &rdn );
slapi_sdn_free ( &superiordn );
}
return op_result;
}
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