--- mqtt/src/accmqtt.c	2011/11/23 14:51:14	1.1.2.3
+++ mqtt/src/accmqtt.c	2012/07/03 12:46:00	1.4
@@ -1,6 +1,54 @@
+/*************************************************************************
+* (C) 2011 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
+*  by Michael Pounov <misho@openbsd-bg.org>
+*
+* $Author: misho $
+* $Id: accmqtt.c,v 1.4 2012/07/03 12:46:00 misho Exp $
+*
+**************************************************************************
+The ELWIX and AITNET software is distributed under the following
+terms:
+
+All of the documentation and software included in the ELWIX and AITNET
+Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
+
+Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
+	by Michael Pounov <misho@elwix.org>.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. All advertising materials mentioning features or use of this software
+   must display the following acknowledgement:
+This product includes software developed by Michael Pounov <misho@elwix.org>
+ELWIX - Embedded LightWeight unIX and its contributors.
+4. Neither the name of AITNET nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+*/
 #include "global.h"
 
 
+extern const char sql_schema[];
+
+
 /*
  * mqtt_rtlm_log() Log database connection message
  *
@@ -17,10 +65,24 @@ mqtt_rtlm_log(const char *fmt, ...)
 	vsyslog(LOG_ERR, fmt, lst);
 	va_end(lst);
 }
-#define MQTT_RTLM_LOG(_sql)	(assert((_sql)), mqtt_rtlm_log("Error:: SQL #%d - %s", \
+#define MQTT_RTLM_LOG(_sql)	(assert((_sql)), mqtt_rtlm_log("Error:: %s(%d) SQL #%d - %s", \
+					__func__, __LINE__, \
 					sqlite3_errcode((_sql)), sqlite3_errmsg((_sql))))
 
+/* library pre-loaded actions */
+void
+_init()
+{
+	sqlite3_initialize();
+}
 
+void
+_fini()
+{
+	sqlite3_shutdown();
+}
+
+
 /*
  * mqtt_rtlm_open() Open database connection
  *
@@ -28,7 +90,7 @@ mqtt_rtlm_log(const char *fmt, ...)
  * return: NULL error or SQL handle
  */
 sqlite3 *
-mqtt_rtlm_open(sl_config *cfg)
+mqtt_rtlm_open(cfg_root_t *cfg)
 {
 	sqlite3 *sql = NULL;
 	const char *str = NULL;
@@ -36,18 +98,24 @@ mqtt_rtlm_open(sl_config *cfg)
 	if (!cfg)
 		return NULL;
 
-	str = (const char*) cfg_GetAttribute(cfg, CFG("mqtt_acc"), CFG("name"));
+	str = (const char*) cfg_getAttribute(cfg, "mqtt_acc", "name");
 	if (!str) {
 		mqtt_rtlm_log("Error:: Unknown database name ...\n");
 		return NULL;
 	}
 
-	if (sqlite3_open_v2(str, &sql, SQLITE_OPEN_READONLY, NULL)) {
+	if (sqlite3_open_v2(str, &sql, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL)) {
 		MQTT_RTLM_LOG(sql);
 		sqlite3_close(sql);
 		return NULL;
 	}
 
+	if (sqlite3_exec(sql, sql_schema, NULL, NULL, NULL)) {
+		MQTT_RTLM_LOG(sql);
+		sqlite3_close(sql);
+		return NULL;
+	}
+
 	return sql;
 }
 
@@ -61,4 +129,50 @@ void
 mqtt_rtlm_close(sqlite3 *sql)
 {
 	sqlite3_close(sql);
+}
+
+/*
+ * mqtt_rtlm_login() Verify login account
+ *
+ * @cfg = loaded config
+ * @sql = SQL handle
+ * @user = username
+ * @pass = password
+ * return: -1 error, 0 ALLOW and 1 REJECT
+ */
+int
+mqtt_rtlm_login(cfg_root_t *cfg, sqlite3 *sql, const char *user, const char *pass)
+{
+	/* insert into Users values (NULL, "", "", 1, strftime('%s','now')); */
+	int ret = 0;
+	sqlite3_stmt *stmt;
+	char *str, *psStmt;
+
+	if (!sql)
+		return -1;
+
+	str = (char*) cfg_getAttribute(cfg, "mqtt_acc", "tbl_users");
+	if (!str) {
+		mqtt_rtlm_log("Error:: not found users table name");
+		return -1;
+	}
+	psStmt = sqlite3_mprintf("SELECT DISTINCT Username, Password, Access FROM %s "
+			"WHERE Username = '%q' AND Password = '%q' AND Access > 0;", str, user, pass);
+
+	if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) {
+		MQTT_RTLM_LOG(sql);
+		sqlite3_free(psStmt);
+		return -1;
+	} else
+		sqlite3_free(psStmt);
+	while (sqlite3_step(stmt) == SQLITE_ROW) {
+		if (sqlite3_data_count(stmt) < 1)
+			ret = 0;
+		else
+			ret = 1;
+		break;
+	}
+	sqlite3_finalize(stmt);
+
+	return ret;
 }