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/*
* $Id$
*
* Various URI related functions
*
* Copyright (C) 2001-2003 FhG Fokus
*
* 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
*
* History:
* -------
* 2003-03-11: New module interface (janakj)
* 2003-03-16: flags export parameter added (janakj)
* 2003-03-19 replaces all mallocs/frees w/ pkg_malloc/pkg_free (andrei)
* 2003-04-05: default_uri #define used (jiri)
* 2004-03-20: has_totag introduced (jiri)
* 2004-06-07 updated to the new DB api (andrei)
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../../sr_module.h"
#include "../../dprint.h"
#include "../../ut.h"
#include "../../error.h"
#include "../../mem/mem.h"
#include "uridb_mod.h"
#include "checks.h"
MODULE_VERSION
/*
* Version of domain table required by the module,
* increment this value if you change the table in
* an backwards incompatible way
*/
#define URI_TABLE_VERSION 1
#define SUBSCRIBER_TABLE_VERSION 6
static void destroy(void); /* Module destroy function */
static int child_init(int rank); /* Per-child initialization function */
static int mod_init(void); /* Module initialization function */
#define URI_TABLE "uri"
#define USER_COL "username"
#define DOMAIN_COL "domain"
#define URI_USER_COL "uri_user"
#define SUBSCRIBER_TABLE "subscriber"
/*
* Module parameter variables
*/
static str db_url = str_init(DEFAULT_RODB_URL);
str db_table = str_init(SUBSCRIBER_TABLE);
str uridb_user_col = str_init(USER_COL);
str uridb_domain_col = str_init(DOMAIN_COL);
str uridb_uriuser_col = str_init(URI_USER_COL);
int use_uri_table = 0; /* Should uri table be used */
int use_domain = 0; /* Should does_uri_exist honor the domain part ? */
static int fixup_exist(void** param, int param_no);
/*
* Exported functions
*/
static cmd_export_t cmds[] = {
{"check_to", (cmd_function)check_to, 0, 0, 0,
REQUEST_ROUTE},
{"check_from", (cmd_function)check_from, 0, 0, 0,
REQUEST_ROUTE},
{"does_uri_exist", (cmd_function)does_uri_exist, 0, 0, fixup_exist,
REQUEST_ROUTE|LOCAL_ROUTE},
{0, 0, 0, 0, 0, 0}
};
/*
* Exported parameters
*/
static param_export_t params[] = {
{"db_url", PARAM_STR, &db_url },
{"db_table", PARAM_STR, &db_table },
{"user_column", PARAM_STR, &uridb_user_col },
{"domain_column", PARAM_STR, &uridb_domain_col },
{"uriuser_column", PARAM_STR, &uridb_uriuser_col },
{"use_uri_table", INT_PARAM, &use_uri_table },
{"use_domain", INT_PARAM, &use_domain },
{0, 0, 0}
};
/*
* Module interface
*/
struct module_exports exports = {
"uri_db",
DEFAULT_DLFLAGS, /* dlopen flags */
cmds, /* Exported functions */
params, /* Exported parameters */
0, /* exported statistics */
0 , /* exported MI functions */
0, /* exported pseudo-variables */
0, /* extra processes */
mod_init, /* module initialization function */
0, /* response function */
destroy, /* destroy function */
child_init /* child initialization function */
};
/**
* Module initialization function callee in each child separately
*/
static int child_init(int rank)
{
if (rank==PROC_INIT || rank==PROC_MAIN || rank==PROC_TCP_MAIN)
return 0; /* do nothing for the main process */
if (db_url.len)
return uridb_db_init(&db_url);
else
return 0;
}
/**
* Module initialization function that is called before the main process forks
*/
static int mod_init(void)
{
int ver;
if (db_url.len == 0) {
if (use_uri_table) {
LM_ERR("configuration error - no database URL, "
"but use_uri_table is set!\n");
return -1;
}
return 0;
}
if (uridb_db_bind(&db_url)) {
LM_ERR("No database module found\n");
return -1;
}
/* Check table version */
ver = uridb_db_ver(&db_url, &db_table);
if (ver < 0) {
LM_ERR("Error while querying table version\n");
return -1;
} else {
if (use_uri_table) {
if (ver != URI_TABLE_VERSION) {
LM_ERR("Invalid table version of the uri table\n");
return -1;
}
} else {
if (ver != SUBSCRIBER_TABLE_VERSION) {
LM_ERR("Invalid table version of the subscriber table\n");
return -1;
}
}
}
return 0;
}
static void destroy(void)
{
uridb_db_close();
}
static int fixup_exist(void** param, int param_no)
{
if (db_url.len == 0) {
LM_ERR("configuration error - does_uri_exist() called with no database URL!\n");
return E_CFG;
}
return 0;
}
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