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kamailio/modules/tsilo/ts_append.c

140 lines
3.4 KiB

/*
* Copyright (C) 2014 Federico Cabiddu (federico.cabiddu@gmail.com)
*
* This file is part of Kamailio, a free SIP server.
*
* Kamailio 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; either version 2 of the License, or
* (at your option) any later version
*
* Kamailio 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "../../sr_module.h"
#include "../../dprint.h"
#include "../../mod_fix.h"
#include "../../route.h"
#include "../../data_lump.h"
#include "../../lib/kcore/statistics.h"
#include "../../dset.h"
#include "../../script_cb.h"
#include "../../parser/msg_parser.h"
#include "../../parser/contact/parse_contact.h"
#include "tsilo.h"
#include "ts_hash.h"
#include "ts_append.h"
int ts_append(struct sip_msg* msg, str *ruri, char *table) {
ts_urecord_t* _r;
ts_transaction_t* ptr;
struct sip_uri p_uri;
str *t_uri;
int res;
int appended;
if (use_domain) {
t_uri = ruri;
} else {
if(parse_uri(ruri->s, ruri->len, &p_uri)<0) {
LM_ERR("failed to parse uri %.*s\n", ruri->len, ruri->s);
return -1;
}
t_uri = &p_uri.user;
}
lock_entry_by_ruri(t_uri);
res = get_ts_urecord(t_uri, &_r);
if (res != 0) {
LM_ERR("failed to retrieve record for %.*s\n", t_uri->len, t_uri->s);
unlock_entry_by_ruri(t_uri);
return -1;
}
ptr = _r->transactions;
while(ptr) {
LM_DBG("transaction %u:%u found for %.*s, going to append branches\n",ptr->tindex, ptr->tlabel, t_uri->len, t_uri->s);
appended = ts_append_to(msg, ptr->tindex, ptr->tlabel, table, ruri);
if (appended > 0)
update_stat(added_branches, appended);
ptr = ptr->next;
}
unlock_entry_by_ruri(t_uri);
return 1;
}
int ts_append_to(struct sip_msg* msg, int tindex, int tlabel, char *table, str *uri) {
struct cell *t=0;
struct cell *orig_t;
struct sip_msg *orig_msg;
int ret;
orig_t = _tmb.t_gett();
if(_tmb.t_lookup_ident(&t, tindex, tlabel) < 0)
{
LM_ERR("transaction [%u:%u] not found\n",
tindex, tlabel);
ret = -1;
goto done;
}
if (t->flags & T_CANCELED) {
LM_DBG("trasaction [%u:%u] was cancelled\n",
tindex, tlabel);
ret = -2;
goto done;
}
if (t->uas.status >= 200) {
LM_DBG("trasaction [%u:%u] sent out a final response already - %d\n",
tindex, tlabel, t->uas.status);
ret = -3;
goto done;
}
orig_msg = t->uas.request;
if(uri==NULL || uri->s==NULL || uri->len<=0) {
ret = _regapi.lookup_to_dset(orig_msg, table, NULL);
} else {
ret = _regapi.lookup_to_dset(orig_msg, table, uri);
}
if(ret != 1) {
LM_DBG("transaction %u:%u: error updating dset (%d)\n", tindex, tlabel, ret);
ret = -4;
goto done;
}
ret = _tmb.t_append_branches();
done:
/* unref the transaction which had been referred by t_lookup_ident() call.
* Restore the original transaction (if any) */
if(t) _tmb.unref_cell(t);
_tmb.t_sett(orig_t, T_BR_UNDEFINED);
return ret;
}