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/** BEGIN COPYRIGHT BLOCK
* Copyright (C) 2001 Sun Microsystems, Inc. Used by permission.
* Copyright (C) 2005 Red Hat, Inc.
* All rights reserved.
*
* License: GPL (version 3 or any later version).
* See LICENSE for details.
* 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 = -1;
const char *dn;
const Slapi_DN *sdn;
slapi_mods smods;
Slapi_Attr *attr;
dn = slapi_entry_get_dn_const(entry);
sdn = slapi_entry_get_sdn_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_err(SLAPI_LOG_REPL, repl_plugin_name,
"%s: Target entry %s is already a glue entry reason %s\n",
sessionid, dn, 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, sdn, opcsn, &smods, 0);
if (op_result == LDAP_SUCCESS) {
slapi_log_err(slapi_log_urp, repl_plugin_name,
"%s: Turned the entry %s to glue, reason %s\n",
sessionid, dn, 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" /* this uniqueid is set to Slapi_Entry in slapi_str2entry. */
"%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_ndn_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) {
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_err(SLAPI_LOG_ERR, repl_plugin_name,
"create_glue_entry - %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_rdn_set_dn_ext(rdn, slapi_sdn_get_dn(dn), SLAPI_RDN_SET_DN_SKIP_UNIQUEID);
while (!done) {
op_result = do_create_glue_entry(rdn, superiordn, uniqueid, "missingEntry", opcsn);
switch (op_result) {
case LDAP_SUCCESS:
slapi_log_err(SLAPI_LOG_NOTICE, repl_plugin_name,
"create_glue_entry - %s: Created glue entry %s uniqueid=%s reason missingEntry\n",
sessionid, dnstr, uniqueid);
done = 1;
break;
case LDAP_ALREADY_EXISTS: {
struct slapi_operation_parameters *op_params;
/* This is okay. While creating a glue, a real entry was added. */
slapi_log_err(SLAPI_LOG_NOTICE, repl_plugin_name,
"create_glue_entry - %s: Skipped creating glue entry %s uniqueid=%s reason Entry Already Exists\n",
sessionid, dnstr, uniqueid);
op_result = LDAP_SUCCESS;
/* If we could not create a glue having the nsuniqueid,
* we have to abandon it. */
slapi_pblock_get(pb, SLAPI_OPERATION_PARAMETERS, &op_params);
slapi_ch_free_string(&op_params->p.p_add.parentuniqueid);
done = 1;
break;
}
case LDAP_NO_SUCH_OBJECT:
/* The parent is missing */
{
/* JCMREPL - Create the parent ... recursion?... but what's the uniqueid? */
slapi_log_err(SLAPI_LOG_ERR, repl_plugin_name,
"create_glue_entry - %s: Can't created glue entry %s uniqueid=%s, error %d; "
"Possibly, parent entry is a conflict entry.\n",
sessionid, dnstr, uniqueid, op_result);
done = 1;
break;
}
default:
slapi_log_err(SLAPI_LOG_ERR, repl_plugin_name,
"create_glue_entry %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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