/*********************************************************************************
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* Copyright: (C) 2019 LingYun IoT System Studio
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* All rights reserved.
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*
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* Filename: conf.c
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* Description: This file is iotd configure file parser function
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*
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* Version: 1.0.0(2019年06月25日)
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* Author: Guo Wenxue <guowenxue@gmail.com>
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* ChangeLog: 1, Release initial version on "2019年06月25日 22时23分55秒"
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*
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********************************************************************************/
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#include "conf.h"
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#include "logger.h"
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#include "iniparser.h"
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enum
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{
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_TYPE_INPUT,
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_TYPE_OUTPUT,
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};
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/* conf format: "{light_indoor:6:0},{light_livroomL:13:0},{light_livroomR:19:0},{light_hallway:26:0}" */
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int parser_gpio_info(int type, gpio_t *gpio, char *conf)
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{
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char *ptr;
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char *pstart;
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char *pend;
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char buf[64];
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int cnt = 0;
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int rv = 0;
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if( !gpio || !conf || strlen(conf)<3 )
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{
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log_error("Invalid input arguments.\n");
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return -1;
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}
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pstart = strchr(conf, '{');
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if( !pstart )
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return 0;
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pend = strchr(pstart, '}');
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while( pstart && pend )
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{
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memset(buf, 0, sizeof(buf));
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strncpy(buf, pstart+1, pend-pstart-1);
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/* parser and get the GPIO name, BCM pin number, active power level */
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{
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/* check GPIO configure name too long or not */
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ptr = strchr(buf, ':');
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if( !ptr )
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{
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log_error("Found invalid GPIO configure: %s\n", buf);
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goto NEXT_LOOP;
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}
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if( ptr-buf > sizeof(gpio->input[cnt].name) )
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{
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log_error("Found GPIO name too long\n", buf);
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goto NEXT_LOOP;
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}
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/* use sscanf() to parser GPIO configured values */
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if(_TYPE_INPUT == type )
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{
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rv = sscanf(buf, "%[^:]:%d:%d", gpio->input[cnt].name, &gpio->input[cnt].pin, &gpio->input[cnt].active_level);
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if( 3 == rv)
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{
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log_info("parser GPIO input[%s] BCM[%d] active[%d]\n", gpio->input[cnt].name, gpio->input[cnt].pin, gpio->input[cnt].active_level);
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if( strstr(gpio->input[cnt].name, "infrared") )
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{
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log_info("parser GPIO enable infrared detect\n");
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gpio->infrared_enable = 1;
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}
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cnt++;
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gpio->incnt = cnt;
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}
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else
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{
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log_error("Found invalid GPIO configure: %s\n", buf);
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}
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}
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else
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{
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rv = sscanf(buf, "%[^:]:%d:%d", gpio->output[cnt].name, &gpio->output[cnt].pin, &gpio->output[cnt].active_level);
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if( 3 == rv)
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{
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log_info("parser GPIO output[%s] BCM[%d] active[%d]\n", gpio->output[cnt].name, gpio->output[cnt].pin, gpio->output[cnt].active_level);
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cnt++;
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gpio->outcnt = cnt;
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}
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else
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{
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log_error("Found invalid GPIO configure: %s\n", buf);
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}
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}
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}
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NEXT_LOOP:
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pstart = strchr(pend, '{');
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if( pstart )
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pend = strchr(pstart, '}');
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}
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return gpio->outcnt;
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}
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int parser_conf(const char *conf_file, iotd_ctx_t *ctx, int debug)
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{
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dictionary *ini;
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const char *str;
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int val;
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log_ctx_t *log_ctx;
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hal_ctx_t *hal_ctx;
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mqtt_ctx_t *mqtt_ctx;
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gpio_t *gpio;
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if( !conf_file || !ctx )
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{
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fprintf(stderr, "ERROR: parser configure file or ctx is NULL\n");
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return 0;
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}
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memset(ctx, 0, sizeof(*ctx));
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log_ctx = &ctx->log_ctx;
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hal_ctx = &ctx->hal_ctx;
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mqtt_ctx = &ctx->mqtt_ctx;
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ini = iniparser_load(conf_file);
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if( !ini )
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{
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fprintf(stderr, "ERROR: cannot parse file: '%s'\n", conf_file);
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return -1;
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}
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/*+------------------------------------------------------+
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*| parser logger settings and start logger system |
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*+------------------------------------------------------+*/
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if( !debug )
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{
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str = iniparser_getstring(ini, "logger:file", "/tmp/iotd.log");
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strncpy(log_ctx->logfile, str, sizeof(log_ctx->logfile));
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log_ctx->logsize = iniparser_getint(ini, "logger:size", 1024);
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log_ctx->loglevel = iniparser_getint(ini, "logger:level", LOG_LEVEL_DEBUG);
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}
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else
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{
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strncpy(log_ctx->logfile, "console", sizeof(log_ctx->logfile));
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log_ctx->loglevel = LOG_LEVEL_DEBUG;
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}
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if( log_open(log_ctx->logfile, log_ctx->loglevel, log_ctx->logsize, LOG_LOCK_DISABLE) < 0 )
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{
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fprintf(stderr, "Logger system initialise failure\n");
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return -2;
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}
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log_info("Logger system initialise ok\n");
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/*+------------------------------------------------------+
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*| parser production ID |
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*+------------------------------------------------------+*/
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if( !(str=iniparser_getstring(ini, "common:id", NULL)) )
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{
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log_error("ERROR: parser production ID failure\n");
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return -2;
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}
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/* cJSON parser ID will get "" */
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snprintf(mqtt_ctx->id, sizeof(mqtt_ctx->id), "\"%s\"", str);
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log_info("parser production ID [%s]\n", mqtt_ctx->id);
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/*+------------------------------------------------------+
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*| parser hardware module configuration ID |
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*+------------------------------------------------------+*/
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gpio = &hal_ctx->gpio;
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/* parser GPIO output pins */
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if( !(str=iniparser_getstring(ini, "hardware:gpio_outpin", NULL)) )
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{
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log_warn("parser no GPIO output pins\n");
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}
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else
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{
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parser_gpio_info(_TYPE_OUTPUT, gpio, (char *)str);
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log_info("parser [%d] GPIO output pins configured\n", gpio->outcnt);
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}
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gpio->light_intval = iniparser_getint(ini, "hardware:light_intval", 20);
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log_info("parser relay controled light interval time [%d]\n", gpio->light_intval);
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/* parser GPIO input pins */
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if( !(str=iniparser_getstring(ini, "hardware:gpio_inpin", NULL)) )
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{
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log_warn("parser no GPIO input pins\n");
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}
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else
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{
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parser_gpio_info(_TYPE_INPUT, gpio, (char *)str);
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log_info("parser [%d] GPIO input pins\n", gpio->incnt);
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}
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hal_ctx->lux_enable = iniparser_getint(ini, "hardware:lux", 0);
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if( hal_ctx->lux_enable )
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{
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hal_ctx->lux_threshold = iniparser_getdouble(ini, "hardware:lux_threshold", 0.1);
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log_info("parser LUX enable and threshold value set be [%.03f]\n", hal_ctx->lux_threshold);
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}
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hal_ctx->sht2x_enable = iniparser_getint(ini, "hardware:sht2x", 0);
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if( hal_ctx->sht2x_enable )
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{
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log_info("parser SHT2x sensor enabled\n");
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}
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hal_ctx->ds18b20_enable = iniparser_getint(ini, "hardware:ds18b20", 0);
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if( hal_ctx->ds18b20_enable )
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{
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log_info("parser DS18B20 sensor enabled\n");
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}
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/*+------------------------------------------------------+
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*| parser broker settings |
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*+------------------------------------------------------+*/
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if( !(str=iniparser_getstring(ini, "broker:hostname", NULL)) )
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{
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log_error("ERROR: Parser broker server hostname failure\n");
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return -2;
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}
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strncpy(mqtt_ctx->host, str, sizeof(mqtt_ctx->host) );
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if( (val=iniparser_getint(ini, "broker:port", -1)) < 0 )
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{
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log_error("ERROR: Parser broker server port failure\n");
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return -2;
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}
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mqtt_ctx->port = val;
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log_info("Parser broker server [%s:%d]\n", mqtt_ctx->host, mqtt_ctx->port);
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str=iniparser_getstring(ini, "broker:username", NULL);
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strncpy(mqtt_ctx->uid, str, sizeof(mqtt_ctx->uid) );
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str=iniparser_getstring(ini, "broker:password", NULL);
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strncpy(mqtt_ctx->pwd, str, sizeof(mqtt_ctx->pwd) );
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log_info("Parser broker author by [%s:%s]\n", mqtt_ctx->uid, mqtt_ctx->pwd);
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mqtt_ctx->keepalive = iniparser_getint(ini, "broker:keepalive", 30);
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log_info("Parser broker keepalive timeout [%d] seconds\n", mqtt_ctx->keepalive);
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/*+------------------------------------------------------+
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*| parser subscriber settings |
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*+------------------------------------------------------+*/
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if( !(str=iniparser_getstring(ini, "subsciber:subTopic", NULL)) )
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{
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log_warn("WARNNING: Parser MQTT subscribe topic failure\n");
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}
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else
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{
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strncpy(mqtt_ctx->subTopic, str, sizeof(mqtt_ctx->subTopic) );
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mqtt_ctx->subQos = iniparser_getint(ini, "subsciber:subQos", 0);
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mqtt_ctx->sub_enable = 1;
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log_info("Parser subscriber topic \"%s\" with Qos[%d]\n", mqtt_ctx->subTopic, mqtt_ctx->subQos);
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}
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/*+------------------------------------------------------+
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*| parser publisher settings |
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*+------------------------------------------------------+*/
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if( !(str=iniparser_getstring(ini, "publisher:pubTopic", NULL)) )
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{
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log_warn("WARNNING: Parser MQTT publisher topic failure\n");
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}
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else
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{
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strncpy(mqtt_ctx->pubTopic, str, sizeof(mqtt_ctx->pubTopic) );
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mqtt_ctx->pubQos = iniparser_getint(ini, "publisher:pubQos", 0);
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mqtt_ctx->interval = iniparser_getint(ini, "publisher:interval", 60);
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mqtt_ctx->pub_enable = 1;
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log_info("Parser publisher topic \"%s\" with Qos[%d]\n", mqtt_ctx->pubTopic, mqtt_ctx->pubQos);
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}
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return 0;
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}
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