version 1.1.2.1, 2011/11/22 21:12:52
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version 1.3, 2012/07/03 09:02:50
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#include "global.h" |
#include "global.h" |
#include "dbmqtt.h" |
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extern const char sql_schema[]; |
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/* |
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* mqtt_rtlm_log() Log database connection message |
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* |
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* @fmt = format string |
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* @... = argument list |
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* return: none |
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*/ |
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static void |
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mqtt_rtlm_log(const char *fmt, ...) |
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{ |
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va_list lst; |
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va_start(lst, fmt); |
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vsyslog(LOG_ERR, fmt, lst); |
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va_end(lst); |
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} |
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#define MQTT_RTLM_LOG(_sql) (assert((_sql)), mqtt_rtlm_log("Error:: %s(%d) SQL #%d - %s", \ |
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__func__, __LINE__, \ |
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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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/* |
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* mqtt_rtlm_open() Open database connection |
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* |
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* @cfg = loaded config |
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* return: NULL error or SQL handle |
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*/ |
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sqlite3 * |
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mqtt_rtlm_open(cfg_root_t *cfg) |
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{ |
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sqlite3 *sql = NULL; |
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const char *str = NULL; |
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if (!cfg) |
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return NULL; |
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str = (const char*) cfg_getAttribute(cfg, "mqtt_acc", "name"); |
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if (!str) { |
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mqtt_rtlm_log("Error:: Unknown database name ...\n"); |
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return NULL; |
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} |
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if (sqlite3_open_v2(str, &sql, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 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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} |
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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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} |
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return sql; |
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} |
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/* |
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* mqtt_rtlm_close() Close database connection |
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* |
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* @sql = SQL handle |
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* return: none |
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*/ |
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void |
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mqtt_rtlm_close(sqlite3 *sql) |
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{ |
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sqlite3_close(sql); |
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} |
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/* |
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* mqtt_rtlm_login() Verify login account |
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* |
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* @cfg = loaded config |
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* @sql = SQL handle |
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* @user = username |
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* @pass = password |
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* return: -1 error, 0 ALLOW and 1 REJECT |
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*/ |
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int |
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mqtt_rtlm_login(cfg_root_t *cfg, sqlite3 *sql, const char *user, const char *pass) |
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{ |
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/* insert into Users values (NULL, "", "", 1, strftime('%s','now')); */ |
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int ret = 0; |
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sqlite3_stmt *stmt; |
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char *str, *psStmt; |
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if (!sql) |
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return -1; |
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str = (char*) cfg_getAttribute(cfg, "mqtt_acc", "tbl_users"); |
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if (!str) { |
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mqtt_rtlm_log("Error:: not found users table name"); |
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return -1; |
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} |
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psStmt = sqlite3_mprintf("SELECT DISTINCT Username, Password, Access FROM %s " |
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"WHERE Username = '%q' AND Password = '%q' AND Access > 0;", str, user, pass); |
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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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while (sqlite3_step(stmt) == SQLITE_ROW) { |
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if (sqlite3_data_count(stmt) < 1) |
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ret = 0; |
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else |
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ret = 1; |
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break; |
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} |
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sqlite3_finalize(stmt); |
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return ret; |
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} |