version 1.1.2.4, 2011/11/24 13:57:12
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version 1.4, 2012/07/03 12:46:01
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/************************************************************************* |
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* (C) 2011 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com> |
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* by Michael Pounov <misho@openbsd-bg.org> |
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* |
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* $Author$ |
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* $Id$ |
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* |
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************************************************************************** |
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The ELWIX and AITNET software is distributed under the following |
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terms: |
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All of the documentation and software included in the ELWIX and AITNET |
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Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org> |
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Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
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by Michael Pounov <misho@elwix.org>. All rights reserved. |
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Redistribution and use in source and binary forms, with or without |
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modification, are permitted provided that the following conditions |
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are met: |
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1. Redistributions of source code must retain the above copyright |
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notice, this list of conditions and the following disclaimer. |
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2. Redistributions in binary form must reproduce the above copyright |
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notice, this list of conditions and the following disclaimer in the |
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documentation and/or other materials provided with the distribution. |
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3. All advertising materials mentioning features or use of this software |
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must display the following acknowledgement: |
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This product includes software developed by Michael Pounov <misho@elwix.org> |
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ELWIX - Embedded LightWeight unIX and its contributors. |
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4. Neither the name of AITNET nor the names of its contributors |
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may be used to endorse or promote products derived from this software |
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without specific prior written permission. |
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THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND |
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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SUCH DAMAGE. |
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*/ |
#include "global.h" |
#include "global.h" |
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extern const char sql_schema[]; |
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/* |
/* |
* mqtt_db_log() Log database connection message |
* mqtt_db_log() Log database connection message |
* |
* |
Line 17 mqtt_rtlm_log(const char *fmt, ...)
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Line 65 mqtt_rtlm_log(const char *fmt, ...)
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vsyslog(LOG_ERR, fmt, lst); |
vsyslog(LOG_ERR, fmt, lst); |
va_end(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)))) |
sqlite3_errcode((_sql)), sqlite3_errmsg((_sql)))) |
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/* library pre-loaded actions */ |
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void |
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_init() |
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{ |
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sqlite3_initialize(); |
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} |
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void |
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_fini() |
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{ |
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sqlite3_shutdown(); |
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} |
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/* |
/* |
* mqtt_rtlm_open() Open database connection |
* mqtt_rtlm_open() Open database connection |
* |
* |
Line 28 mqtt_rtlm_log(const char *fmt, ...)
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Line 90 mqtt_rtlm_log(const char *fmt, ...)
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* return: NULL error or SQL handle |
* return: NULL error or SQL handle |
*/ |
*/ |
sqlite3 * |
sqlite3 * |
mqtt_rtlm_open(sl_config *cfg) | mqtt_rtlm_open(cfg_root_t *cfg) |
{ |
{ |
sqlite3 *sql = NULL; |
sqlite3 *sql = NULL; |
const char *str = NULL; |
const char *str = NULL; |
Line 36 mqtt_rtlm_open(sl_config *cfg)
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Line 98 mqtt_rtlm_open(sl_config *cfg)
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if (!cfg) |
if (!cfg) |
return NULL; |
return NULL; |
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str = (const char*) cfg_GetAttribute(cfg, CFG("mqtt_pub"), CFG("name")); | str = cfg_getAttribute(cfg, "mqtt_pub", "name"); |
if (!str) { |
if (!str) { |
mqtt_rtlm_log("Error:: Unknown database name ...\n"); |
mqtt_rtlm_log("Error:: Unknown database name ...\n"); |
return NULL; |
return NULL; |
} |
} |
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if (sqlite3_open_v2(str, &sql, SQLITE_OPEN_READWRITE, NULL)) { | if (sqlite3_open_v2(str, &sql, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, NULL)) { |
MQTT_RTLM_LOG(sql); |
MQTT_RTLM_LOG(sql); |
sqlite3_close(sql); |
sqlite3_close(sql); |
return NULL; |
return NULL; |
} |
} |
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if (sqlite3_exec(sql, sql_schema, NULL, NULL, NULL)) { |
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MQTT_RTLM_LOG(sql); |
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sqlite3_close(sql); |
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return NULL; |
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} |
return sql; |
return sql; |
} |
} |
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Line 68 mqtt_rtlm_close(sqlite3 *sql)
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Line 135 mqtt_rtlm_close(sqlite3 *sql)
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* |
* |
* @cfg = loaded config |
* @cfg = loaded config |
* @sql = SQL handle |
* @sql = SQL handle |
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* @connid = connection id |
* @user = username |
* @user = username |
* @host = hostname |
* @host = hostname |
* @port = port | * @will = will flag if !=0 must fill arguments |
| * @... = will arguments in order topic,msg,qos,retain |
* return: -1 error, 0 session already appears or >0 row changed |
* return: -1 error, 0 session already appears or >0 row changed |
*/ |
*/ |
int |
int |
mqtt_rtlm_init_session(sl_config *cfg, sqlite3 *sql, const char *user, const char *host, u_short port) | mqtt_rtlm_init_session(cfg_root_t *cfg, sqlite3 *sql, const char *connid, const char *user, |
| const char *host, char will, ...) |
{ |
{ |
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va_list lst; |
int ret = 0; |
int ret = 0; |
char *str, szStmt[BUFSIZ] = { 0 }; | char *str, *psStmt; |
sqlite3_stmt *stmt; |
sqlite3_stmt *stmt; |
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if (!cfg || !sql) |
if (!cfg || !sql) |
return -1; |
return -1; |
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str = (char*) cfg_GetAttribute(cfg, CFG("mqtt_pub"), CFG("tbl_online")); | str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_online"); |
if (!str) { |
if (!str) { |
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mqtt_rtlm_log("Error:: not found online table name"); |
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return -1; |
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} |
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if (!will) |
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psStmt = sqlite3_mprintf("INSERT INTO %s (ConnID, Username, RemoteHost, " |
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"WillFlag) VALUES ('%q', '%q', '%q', 0);", str, connid, user, host); |
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else { |
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va_start(lst, will); |
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psStmt = sqlite3_mprintf("INSERT INTO %s (ConnID, Username, RemoteHost, " |
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"WillFlag, WillRetain, WillQoS, WillMsg, WillTopic) " |
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"VALUES ('%q', '%q', '%q', %d, %d, %d, '%q', '%q');", |
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str, connid, user, host, will, |
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va_arg(lst, int), va_arg(lst, int), va_arg(lst, char*), va_arg(lst, char*)); |
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va_end(lst); |
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} |
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if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) { |
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MQTT_RTLM_LOG(sql); |
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sqlite3_free(psStmt); |
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return -1; |
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} else |
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sqlite3_free(psStmt); |
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if ((ret = sqlite3_step(stmt)) == SQLITE_DONE) |
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ret = sqlite3_changes(sql); |
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else { |
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if (ret > SQLITE_OK && ret < SQLITE_ROW) |
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MQTT_RTLM_LOG(sql); |
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ret = 0; |
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} |
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sqlite3_finalize(stmt); |
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return ret; |
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} |
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/* |
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* mqtt_rtlm_fini_session() Delete session(s) |
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* |
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* @cfg = loaded config |
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* @sql = SQL handle |
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* @connid = connection id |
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* @user = username |
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* @host = hostname |
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* return: -1 error, 0 session already appears or >0 row changed |
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*/ |
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int |
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mqtt_rtlm_fini_session(cfg_root_t *cfg, sqlite3 *sql, const char *connid, const char *user, const char *host) |
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{ |
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int ret = 0; |
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char *str, *psStmt; |
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sqlite3_stmt *stmt; |
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if (!cfg || !sql) |
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return -1; |
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str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_online"); |
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if (!str) { |
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mqtt_rtlm_log("Error:: not found online table name"); |
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return -1; |
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} |
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psStmt = sqlite3_mprintf("DELETE FROM %s WHERE ConnID = '%q' AND Username = '%q' " |
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"AND RemoteHost LIKE '%q';", str, connid, user, host); |
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if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) { |
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MQTT_RTLM_LOG(sql); |
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sqlite3_free(psStmt); |
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return -1; |
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} else |
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sqlite3_free(psStmt); |
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if ((ret = sqlite3_step(stmt)) == SQLITE_DONE) |
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ret = sqlite3_changes(sql); |
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else { |
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if (ret > SQLITE_OK && ret < SQLITE_ROW) |
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MQTT_RTLM_LOG(sql); |
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ret = 0; |
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} |
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sqlite3_finalize(stmt); |
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return ret; |
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} |
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/* |
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* mqtt_rtlm_chk_session() Check session(s) |
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* |
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* @cfg = loaded config |
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* @sql = SQL handle |
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* @connid = connection id |
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* @user = username |
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* @host = hostname |
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* return: -1 error, 0 not logged or >0 logged found rows |
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*/ |
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int |
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mqtt_rtlm_chk_session(cfg_root_t *cfg, sqlite3 *sql, const char *connid, const char *user, const char *host) |
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{ |
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int ret = 0; |
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char *str, *psStmt; |
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sqlite3_stmt *stmt; |
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if (!cfg || !sql) |
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return -1; |
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str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_online"); |
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if (!str) { |
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mqtt_rtlm_log("Error:: not found online table name"); |
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return -1; |
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} |
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psStmt = sqlite3_mprintf("SELECT ConnID, RemoteHost FROM %s WHERE " |
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"ConnID = '%q' AND Username LIKE '%q' AND RemoteHost LIKE '%q';", |
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str, connid, user, host); |
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if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) { |
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MQTT_RTLM_LOG(sql); |
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sqlite3_free(psStmt); |
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return -1; |
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} else |
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sqlite3_free(psStmt); |
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if (sqlite3_step(stmt) == SQLITE_ROW) |
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ret = sqlite3_changes(sql); |
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else |
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ret = 0; |
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sqlite3_finalize(stmt); |
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return ret; |
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} |
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/* |
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* mqtt_rtlm_write_topic() Publish topic |
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* |
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* @cfg = loaded config |
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* @sql = SQL handle |
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* @connid = connection id |
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* @msgid = MessageID |
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* @topic = topic |
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* @txt = text |
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* @txtlen = text length |
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* @user = username |
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* @host = hostname |
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* @qos = QoS |
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* @retain = !=0 retain message to database |
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* return: -1 error, 0 no publish or >0 published ok |
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*/ |
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int |
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mqtt_rtlm_write_topic(cfg_root_t *cfg, sqlite3 *sql, const char *connid, u_short msgid, |
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const char *topic, void *txt, int txtlen, const char *user, |
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const char *host, char qos, char retain) |
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{ |
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int ret = 0; |
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char *str, *psStmt; |
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sqlite3_stmt *stmt; |
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if (!cfg || !sql || !topic) |
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return -1; |
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str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_topics"); |
|
if (!str) { |
mqtt_rtlm_log("Error:: not found topics table name"); |
mqtt_rtlm_log("Error:: not found topics table name"); |
return -1; |
return -1; |
} |
} |
snprintf(szStmt, sizeof szStmt, "INSERT INTO %s (Username, RemoteHost, RemotePort) " | psStmt = sqlite3_mprintf("INSERT INTO %s (QoS, Retain, ConnID, MsgID, Topic, Value, PubUser, " |
"VALUES ('%s', '%s', %d);", str, user, host, port); | "PubDate, PubHost) VALUES (%d, %d, '%q', %u, '%q', ?1, '%q', " |
| "datetime('now', 'localtime'), '%q');", |
| str, qos, retain, connid, msgid, topic, user, host); |
|
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if (sqlite3_prepare_v2(sql, szStmt, strlen(szStmt), &stmt, NULL)) { | if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL) || !stmt) { |
MQTT_RTLM_LOG(sql); |
MQTT_RTLM_LOG(sql); |
|
sqlite3_free(psStmt); |
return -1; |
return -1; |
|
} else |
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sqlite3_free(psStmt); |
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if (sqlite3_bind_blob(stmt, 1, txt, txtlen, SQLITE_TRANSIENT)) { |
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MQTT_RTLM_LOG(sql); |
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sqlite3_finalize(stmt); |
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return -1; |
} |
} |
if ((ret = sqlite3_step(stmt)) == SQLITE_DONE) |
if ((ret = sqlite3_step(stmt)) == SQLITE_DONE) |
ret = sqlite3_changes(sql); |
ret = sqlite3_changes(sql); |
Line 105 mqtt_rtlm_init_session(sl_config *cfg, sqlite3 *sql, c
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Line 339 mqtt_rtlm_init_session(sl_config *cfg, sqlite3 *sql, c
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sqlite3_finalize(stmt); |
sqlite3_finalize(stmt); |
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return ret; |
return ret; |
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} |
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/* |
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* mqtt_rtlm_wipe_topic() Wipe all topics |
|
* |
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* @cfg = loaded config |
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* @sql = SQL handle |
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* @connid = connection id |
|
* @user = username |
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* @retain = -1 no matter |
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* return: -1 error, 0 no changes or >0 deleted rows |
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*/ |
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int |
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mqtt_rtlm_wipe_topic(cfg_root_t *cfg, sqlite3 *sql, const char *connid, const char *user, char retain) |
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{ |
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int ret = 0; |
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char *str, *rtn, *psStmt; |
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sqlite3_stmt *stmt; |
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if (!cfg || !sql || !connid) |
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return -1; |
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str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_topics"); |
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if (!str) { |
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mqtt_rtlm_log("Error:: not found topics table name"); |
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return -1; |
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} |
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switch (retain) { |
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case -1: |
|
rtn = ""; |
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break; |
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case 0: |
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rtn = "AND Retain = 0"; |
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break; |
|
default: |
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rtn = "AND Retain != 0"; |
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break; |
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} |
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psStmt = sqlite3_mprintf("DELETE FROM %s WHERE ConnID = '%q' AND " |
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"PubUser LIKE '%q' %s;", str, connid, user, rtn); |
|
|
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if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) { |
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MQTT_RTLM_LOG(sql); |
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sqlite3_free(psStmt); |
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return -1; |
|
} else |
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sqlite3_free(psStmt); |
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if ((ret = sqlite3_step(stmt)) == SQLITE_DONE) |
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ret = sqlite3_changes(sql); |
|
else { |
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if (ret > SQLITE_OK && ret < SQLITE_ROW) |
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MQTT_RTLM_LOG(sql); |
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ret = 0; |
|
} |
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sqlite3_finalize(stmt); |
|
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return ret; |
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} |
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/* |
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* mqtt_rtlm_delete_topic() Delete topic |
|
* |
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* @cfg = loaded config |
|
* @sql = SQL handle |
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* @connid = connection id |
|
* @msgid = MessageID |
|
* @topic = topic |
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* @user = username |
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* @host = hostname |
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* @retain = -1 no matter |
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* return: -1 error, 0 no changes or >0 deleted rows |
|
*/ |
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int |
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mqtt_rtlm_delete_topic(cfg_root_t *cfg, sqlite3 *sql, const char *connid, u_short msgid, |
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const char *topic, const char *user, const char *host, char retain) |
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{ |
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int ret = 0; |
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char *str, *rtn, *psStmt; |
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sqlite3_stmt *stmt; |
|
|
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if (!cfg || !sql || !topic) |
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return -1; |
|
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str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_topics"); |
|
if (!str) { |
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mqtt_rtlm_log("Error:: not found topics table name"); |
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return -1; |
|
} |
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switch (retain) { |
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case -1: |
|
rtn = ""; |
|
break; |
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case 0: |
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rtn = "AND Retain = 0"; |
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break; |
|
default: |
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rtn = "AND Retain != 0"; |
|
break; |
|
} |
|
psStmt = sqlite3_mprintf("DELETE FROM %s WHERE ConnID = '%q' AND MsgID = %d AND " |
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"Topic LIKE '%q' AND PubUser LIKE '%q' AND PubHost LIKE '%q' %s;", str, |
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connid, msgid, topic, user, host, rtn); |
|
|
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if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) { |
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MQTT_RTLM_LOG(sql); |
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sqlite3_free(psStmt); |
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return -1; |
|
} else |
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sqlite3_free(psStmt); |
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if ((ret = sqlite3_step(stmt)) == SQLITE_DONE) |
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ret = sqlite3_changes(sql); |
|
else { |
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if (ret > SQLITE_OK && ret < SQLITE_ROW) |
|
MQTT_RTLM_LOG(sql); |
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ret = 0; |
|
} |
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sqlite3_finalize(stmt); |
|
|
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return ret; |
|
} |
|
|
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/* |
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* mqtt_rtlm_read_topic() Get topic |
|
* |
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* @cfg = loaded config |
|
* @sql = SQL handle |
|
* @connid = connection id |
|
* @topic = topic |
|
* @retain = retain 0 get only dynamic, >0 get only retained and -1 no matter |
|
* return: NULL error or not found and !=NULL allocated subscribe topics |
|
*/ |
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mqtt_subscr_t * |
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mqtt_rtlm_read_topic(cfg_root_t *cfg, sqlite3 *sql, const char *connid, |
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const char *topic, char retain) |
|
{ |
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int rowz = 0; |
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char *str, szStr[STRSIZ], *psStmt; |
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sqlite3_stmt *stmt; |
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register int j; |
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mqtt_subscr_t *s = NULL; |
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ait_val_t v; |
|
|
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if (!cfg || !sql || !topic) |
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return NULL; |
|
|
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switch (retain) { |
|
case -1: |
|
memset(szStr, 0, sizeof szStr); |
|
break; |
|
case 0: |
|
snprintf(szStr, sizeof szStr, "AND Retain = 0"); |
|
break; |
|
default: |
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snprintf(szStr, sizeof szStr, "AND Retain > 0"); |
|
break; |
|
} |
|
|
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str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_topics"); |
|
if (!str) { |
|
mqtt_rtlm_log("Error:: not found topics table name"); |
|
return NULL; |
|
} |
|
psStmt = sqlite3_mprintf("SELECT QoS, Topic, Value FROM %s WHERE " |
|
"ConnID LIKE '%q' AND Topic LIKE '%q' %s;", |
|
str, connid, topic, szStr); |
|
|
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if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) { |
|
MQTT_RTLM_LOG(sql); |
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sqlite3_free(psStmt); |
|
return NULL; |
|
} else |
|
sqlite3_free(psStmt); |
|
|
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/* calculate count of rows and allocate subscribe items */ |
|
while (sqlite3_step(stmt) == SQLITE_ROW) |
|
rowz++; |
|
if (!(s = malloc((rowz + 1) * sizeof(mqtt_subscr_t)))) { |
|
mqtt_rtlm_log("Error:: System #%d - %s", errno, strerror(errno)); |
|
goto end; |
|
} else |
|
memset(s, 0, (rowz + 1) * sizeof(mqtt_subscr_t)); |
|
sqlite3_reset(stmt); |
|
|
|
/* fill with data */ |
|
for (j = 0; j < rowz && sqlite3_step(stmt) == SQLITE_ROW; j++) { |
|
s[j].sub_ret = (char) sqlite3_column_int(stmt, 0); |
|
s[j].sub_topic.msg_base = (u_char*) strdup((char*) sqlite3_column_text(stmt, 1)); |
|
s[j].sub_topic.msg_len = strlen((char*) s[j].sub_topic.msg_base); |
|
AIT_SET_PTR(&v, (void*) sqlite3_column_blob(stmt, 2), sqlite3_column_bytes(stmt, 2)); |
|
s[j].sub_value.msg_len = AIT_LEN(&v); |
|
s[j].sub_value.msg_base = (u_char*) malloc(s[j].sub_value.msg_len); |
|
if (s[j].sub_value.msg_base) |
|
memcpy(s[j].sub_value.msg_base, AIT_GET_PTR(&v), s[j].sub_value.msg_len); |
|
AIT_FREE_VAL(&v); |
|
} |
|
end: |
|
sqlite3_finalize(stmt); |
|
|
|
return s; |
|
} |
|
|
|
/* |
|
* mqtt_rtlm_write_subscribe() Subscribe topic |
|
* |
|
* @cfg = loaded config |
|
* @sql = SQL handle |
|
* @connid = connection id |
|
* @msgid = MessageID |
|
* @topic = topic |
|
* @user = username |
|
* @host = hostname |
|
* @qos = Subscribe QoS |
|
* return: -1 error, 0 no publish or >0 published ok |
|
*/ |
|
int |
|
mqtt_rtlm_write_subscribe(cfg_root_t *cfg, sqlite3 *sql, const char *connid, u_short msgid, |
|
const char *topic, const char *user, const char *host, char qos) |
|
{ |
|
int ret = 0; |
|
char *str, *psStmt; |
|
sqlite3_stmt *stmt; |
|
|
|
if (!cfg || !sql || !topic) |
|
return -1; |
|
|
|
str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_subscribes"); |
|
if (!str) { |
|
mqtt_rtlm_log("Error:: not found subscribes table name"); |
|
return -1; |
|
} |
|
psStmt = sqlite3_mprintf("INSERT INTO %s (ConnID, MsgID, QoS, Topic, PubUser, " |
|
"PubDate, PubHost) VALUES ('%q', %d, %d, '%q', '%q', " |
|
"datetime('now', 'localtime'), '%q');", str, |
|
connid, msgid, qos, topic, user, host); |
|
|
|
if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) { |
|
MQTT_RTLM_LOG(sql); |
|
sqlite3_free(psStmt); |
|
return -1; |
|
} else |
|
sqlite3_free(psStmt); |
|
if ((ret = sqlite3_step(stmt)) == SQLITE_DONE) |
|
ret = sqlite3_changes(sql); |
|
else { |
|
if (ret > SQLITE_OK && ret < SQLITE_ROW) |
|
MQTT_RTLM_LOG(sql); |
|
ret = 0; |
|
} |
|
sqlite3_finalize(stmt); |
|
|
|
return ret; |
|
} |
|
|
|
/* |
|
* mqtt_rtlm_delete_subscribe() Delete subscribe |
|
* |
|
* @cfg = loaded config |
|
* @sql = SQL handle |
|
* @connid = connection id |
|
* @topic = topic |
|
* @user = username |
|
* @host = hostname |
|
* return: -1 error, 0 no changes or >0 deleted rows |
|
*/ |
|
int |
|
mqtt_rtlm_delete_subscribe(cfg_root_t *cfg, sqlite3 *sql, const char *connid, |
|
const char *topic, const char *user, const char *host) |
|
{ |
|
int ret = 0; |
|
char *str, *psStmt; |
|
sqlite3_stmt *stmt; |
|
|
|
if (!cfg || !sql || !topic) |
|
return -1; |
|
|
|
str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_subscribes"); |
|
if (!str) { |
|
mqtt_rtlm_log("Error:: not found subscribes table name"); |
|
return -1; |
|
} |
|
psStmt = sqlite3_mprintf("DELETE FROM %s WHERE ConnID = '%q' AND " |
|
"Topic LIKE '%q' AND PubUser LIKE '%q' AND PubHost LIKE '%q';", str, |
|
connid, topic, user, host); |
|
|
|
if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) { |
|
MQTT_RTLM_LOG(sql); |
|
sqlite3_free(psStmt); |
|
return -1; |
|
} else |
|
sqlite3_free(psStmt); |
|
if ((ret = sqlite3_step(stmt)) == SQLITE_DONE) |
|
ret = sqlite3_changes(sql); |
|
else { |
|
if (ret > SQLITE_OK && ret < SQLITE_ROW) |
|
MQTT_RTLM_LOG(sql); |
|
ret = 0; |
|
} |
|
sqlite3_finalize(stmt); |
|
|
|
return ret; |
|
} |
|
|
|
/* |
|
* mqtt_rtlm_read_subscribe() Get subscribe topic |
|
* |
|
* @cfg = loaded config |
|
* @sql = SQL handle |
|
* @connid = connection id |
|
* @topic = topic |
|
* return: NULL error or not found and !=NULL allocated subscribe topics |
|
*/ |
|
mqtt_subscr_t * |
|
mqtt_rtlm_read_subscribe(cfg_root_t *cfg, sqlite3 *sql, const char *connid, const char *topic) |
|
{ |
|
int rowz = 0; |
|
char *str, *psStmt; |
|
sqlite3_stmt *stmt; |
|
register int j; |
|
mqtt_subscr_t *s = NULL; |
|
|
|
if (!cfg || !sql || !topic) |
|
return NULL; |
|
|
|
str = (char*) cfg_getAttribute(cfg, "mqtt_pub", "tbl_subscribes"); |
|
if (!str) { |
|
mqtt_rtlm_log("Error:: not found subscribes table name"); |
|
return NULL; |
|
} |
|
psStmt = sqlite3_mprintf("SELECT QoS, Topic FROM %s WHERE ConnID = '%q' AND " |
|
"Topic LIKE '%q';", str, connid, topic); |
|
|
|
if (sqlite3_prepare_v2(sql, psStmt, strlen(psStmt), &stmt, NULL)) { |
|
MQTT_RTLM_LOG(sql); |
|
sqlite3_free(psStmt); |
|
return NULL; |
|
} else |
|
sqlite3_free(psStmt); |
|
|
|
/* calculate count of rows and allocate subscribe items */ |
|
while (sqlite3_step(stmt) == SQLITE_ROW) |
|
rowz++; |
|
if (!(s = malloc((rowz + 1) * sizeof(mqtt_subscr_t)))) { |
|
mqtt_rtlm_log("Error:: System #%d - %s", errno, strerror(errno)); |
|
goto end; |
|
} else |
|
memset(s, 0, (rowz + 1) * sizeof(mqtt_subscr_t)); |
|
sqlite3_reset(stmt); |
|
|
|
/* fill with data */ |
|
for (j = 0; j < rowz && sqlite3_step(stmt) == SQLITE_ROW; j++) { |
|
s[j].sub_ret = (char) sqlite3_column_int(stmt, 0); |
|
s[j].sub_topic.msg_base = (u_char*) strdup((char*) sqlite3_column_text(stmt, 1)); |
|
s[j].sub_topic.msg_len = strlen((char*) s[j].sub_topic.msg_base); |
|
s[j].sub_value.msg_base = NULL; |
|
s[j].sub_value.msg_len = 0; |
|
} |
|
end: |
|
sqlite3_finalize(stmt); |
|
|
|
return s; |
} |
} |