--- a/thermferm/mqtt.c Sat Apr 29 17:07:36 2017 +0200
+++ b/thermferm/mqtt.c Mon May 08 16:26:02 2017 +0200
@@ -1,5 +1,5 @@
/*****************************************************************************
- * Copyright (C) 2016
+ * Copyright (C) 2016-2017
*
* Michiel Broek <mbroek at mbse dot eu>
*
@@ -26,6 +26,12 @@
extern sys_config Config;
extern int debug;
+extern const char UNITMODE[5][8];
+extern const char PROFSTATE[5][6];
+extern const char TEMPSTATE[3][8];
+
+int Sequence = 0;
+
#ifdef HAVE_MOSQUITTO_H
@@ -48,17 +54,58 @@
char my_hostname[256];
+
+char *payload_header(void)
+{
+ char *tmp, buf[128];
+
+ tmp = xstrcpy((char *)"{\"timestamp\":");
+ sprintf(buf, "%ld", time(NULL));
+ tmp = xstrcat(tmp, buf);
+ tmp = xstrcat(tmp, (char *)",\"seq\":");
+ sprintf(buf, "%d", Sequence++);
+ tmp = xstrcat(tmp, buf);
+ tmp = xstrcat(tmp, (char *)",\"metric\":");
+ return tmp;
+}
+
+
+
+char *topic_base(char *msgtype)
+{
+ char *tmp;
+
+ tmp = xstrcpy((char *)"mbv1.0/fermenters/");
+ tmp = xstrcat(tmp, msgtype);
+ tmp = xstrcat(tmp, (char *)"/");
+ tmp = xstrcat(tmp, my_hostname);
+ return tmp;
+}
+
+
+
void my_connect_callback(struct mosquitto *my_mosq, void *obj, int result)
{
+ char *topic = NULL;
+
if (mqtt_connect_lost) {
- mqtt_connect_lost = FALSE;
- syslog(LOG_NOTICE, "MQTT: reconnect: %s", mosquitto_connack_string(result));
+ mqtt_connect_lost = FALSE;
+ syslog(LOG_NOTICE, "MQTT: reconnect: %s", mosquitto_connack_string(result));
}
if (!result) {
- mqtt_status = STATUS_CONNACK_RECVD;
+ topic = topic_base((char *)"NCMD");
+ topic = xstrcat(topic, (char *)"/#");
+ mosquitto_subscribe(mosq, NULL, topic, 0);
+ free(topic);
+ topic = topic_base((char *)"DCMD");
+ topic = xstrcat(topic, (char *)"/#");
+ mosquitto_subscribe(mosq, NULL, topic, 0);
+ free(topic);
+ topic = NULL;
+ mqtt_status = STATUS_CONNACK_RECVD;
} else {
- syslog(LOG_NOTICE, "MQTT: my_connect_callback: %s\n", mosquitto_connack_string(result));
+ syslog(LOG_NOTICE, "MQTT: my_connect_callback: %s\n", mosquitto_connack_string(result));
}
}
@@ -87,6 +134,18 @@
+void my_subscribe_callback(struct mosquitto *my_mosq, void *userdata, int mid, int qos_count, const int *granted_qos)
+{
+ int i;
+
+ syslog(LOG_NOTICE, "Subscribed (mid: %d): %d", mid, granted_qos[0]);
+ for (i = 1; i < qos_count; i++) {
+ syslog(LOG_NOTICE, " %d", granted_qos[i]);
+ }
+}
+
+
+
void my_log_callback(struct mosquitto *my_mosq, void *obj, int level, const char *str)
{
syslog(LOG_NOTICE, "MQTT: %s", str);
@@ -96,15 +155,389 @@
+void my_message_callback(struct mosquitto *my_mosq, void *userdata, const struct mosquitto_message *message)
+{
+ if (message->payloadlen) {
+ syslog(LOG_NOTICE, "MQTT: message callback %s :: %d", message->topic, message->payloadlen);
+ // TODO: process subscribed topics here.
+
+ } else {
+ syslog(LOG_NOTICE, "MQTT: message callback %s (null)", message->topic);
+ }
+}
+
+
+
+void publisher(struct mosquitto *my_mosq, char *topic, char *payload, bool retain) {
+ // publish the data
+ if (payload)
+ mosquitto_publish(my_mosq, &mqtt_mid_sent, topic, strlen(payload), payload, mqtt_qos, retain);
+ else
+ mosquitto_publish(my_mosq, &mqtt_mid_sent, topic, 0, NULL, mqtt_qos, retain);
+}
+
+
+
+char *unit_data(units_list *unit, bool birth)
+{
+ char *payload = NULL;
+ char buf[128];
+ bool comma = false;
+ profiles_list *profile;
+ prof_step *pstep;
+
+ payload = xstrcat(payload, (char *)"{");
+ if (birth || unit->mqtt_flag & MQTT_FLAG_MODE) {
+ // Also send these on mode change
+ payload = xstrcat(payload, (char *)"\"uuid\":\"");
+ payload = xstrcat(payload, unit->uuid);
+ payload = xstrcat(payload, (char *)"\",\"alias\":\"");
+ payload = xstrcat(payload, unit->alias);
+ payload = xstrcat(payload, (char *)"\",\"name\":\"");
+ payload = xstrcat(payload, unit->name);
+ payload = xstrcat(payload, (char *)"\"");
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_AIR) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ if (unit->air_address) {
+ payload = xstrcat(payload, (char *)"\"air\":{\"address\":\"");
+ payload = xstrcat(payload, unit->air_address);
+ payload = xstrcat(payload, (char *)"\",\"state\":\"");
+ payload = xstrcat(payload, (char *)TEMPSTATE[unit->air_state]);
+ payload = xstrcat(payload, (char *)"\",\"temperature\":");
+ sprintf(buf, "%.3f", unit->air_temperature / 1000.0);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ } else {
+ payload = xstrcat(payload, (char *)"\"air\":null");
+ }
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_BEER) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ if (unit->beer_address) {
+ payload = xstrcat(payload, (char *)"\"beer\":{\"address\":\"");
+ payload = xstrcat(payload, unit->beer_address);
+ payload = xstrcat(payload, (char *)"\",\"state\":\"");
+ payload = xstrcat(payload, (char *)TEMPSTATE[unit->beer_state]);
+ payload = xstrcat(payload, (char *)"\",\"temperature\":");
+ sprintf(buf, "%.3f", unit->beer_temperature / 1000.0);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ } else {
+ payload = xstrcat(payload, (char *)"\"beer\":null");
+ }
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_HEATER) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ if (unit->heater_address) {
+ payload = xstrcat(payload, (char *)"\"heater\":{\"address\":\"");
+ payload = xstrcat(payload, unit->heater_address);
+ payload = xstrcat(payload, (char *)"\",\"state\":");
+ sprintf(buf, "%d", unit->heater_state);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ } else {
+ payload = xstrcat(payload, (char *)"\"heater\":null");
+ }
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_COOLER) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ if (unit->cooler_address) {
+ payload = xstrcat(payload, (char *)"\"cooler\":{\"address\":\"");
+ payload = xstrcat(payload, unit->cooler_address);
+ payload = xstrcat(payload, (char *)"\",\"state\":");
+ sprintf(buf, "%d", unit->cooler_state);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ } else {
+ payload = xstrcat(payload, (char *)"\"cooler\":null");
+ }
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_FAN) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ if (unit->fan_address) {
+ payload = xstrcat(payload, (char *)"\"fan\":{\"address\":\"");
+ payload = xstrcat(payload, unit->fan_address);
+ payload = xstrcat(payload, (char *)"\",\"state\":");
+ sprintf(buf, "%d", unit->fan_state);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ } else {
+ payload = xstrcat(payload, (char *)"\"fan\":null");
+ }
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_DOOR) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ if (unit->door_address) {
+ payload = xstrcat(payload, (char *)"\"door\":{\"address\":\"");
+ payload = xstrcat(payload, unit->door_address);
+ payload = xstrcat(payload, (char *)"\",\"state\":");
+ sprintf(buf, "%d", unit->door_state);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ } else {
+ payload = xstrcat(payload, (char *)"\"door\":null");
+ }
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_LIGHT) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ if (unit->light_address) {
+ payload = xstrcat(payload, (char *)"\"light\":{\"address\":\"");
+ payload = xstrcat(payload, unit->light_address);
+ payload = xstrcat(payload, (char *)"\",\"state\":");
+ sprintf(buf, "%d", unit->light_state);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ } else {
+ payload = xstrcat(payload, (char *)"\"light\":null");
+ }
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_PSU) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ if (unit->psu_address) {
+ payload = xstrcat(payload, (char *)"\"psu\":{\"address\":\"");
+ payload = xstrcat(payload, unit->psu_address);
+ payload = xstrcat(payload, (char *)"\",\"state\":");
+ sprintf(buf, "%d", unit->psu_state);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ } else {
+ payload = xstrcat(payload, (char *)"\"psu\":null");
+ }
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_MODE) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ payload = xstrcat(payload, (char *)"\"mode\":\"");
+ payload = xstrcat(payload, (char *)UNITMODE[unit->mode]);
+ payload = xstrcat(payload, (char *)"\"");
+ comma = true;
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_SP) {
+ if (unit->mode != UNITMODE_OFF) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ payload = xstrcat(payload, (char *)"\"setpoint\":{\"low\":");
+ sprintf(buf, "%.1f", unit->PID_heat->SetP);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)",\"high\":");
+ sprintf(buf, "%.1f", unit->PID_cool->SetP);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ comma = true;
+ }
+ }
+ if (birth || unit->mqtt_flag & MQTT_FLAG_PROFILE || unit->mqtt_flag & MQTT_FLAG_PERCENT) {
+ if (unit->mode == UNITMODE_PROFILE && unit->profile) {
+ for (profile = Config.profiles; profile; profile = profile->next) {
+ if (strcmp(unit->profile, profile->uuid) == 0) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ payload = xstrcat(payload, (char *)"\"profile\":{\"uuid\":\"");
+ payload = xstrcat(payload, unit->profile);
+ payload = xstrcat(payload, (char *)",\"name\":\"");
+ payload = xstrcat(payload, profile->name);
+ payload = xstrcat(payload, (char *)"\",\"inittemp\":{\"low\":");
+ sprintf(buf, "%.1f", profile->inittemp_lo);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)",\"high\":");
+ sprintf(buf, "%.1f", profile->inittemp_hi);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"},\"fridgemode\":");
+ sprintf(buf, "%d", profile->fridge_mode);
+ payload = xstrcat(payload, buf);
+ comma = false;
+ if (profile->steps) {
+ payload = xstrcat(payload, (char *)",\"steps\":[");
+ for (pstep = profile->steps; pstep; pstep = pstep->next) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ payload = xstrcat(payload, (char *)"{\"resttime\":");
+ sprintf(buf, "%d", pstep->resttime);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)",\"steptime\":");
+ sprintf(buf, "%d", pstep->steptime);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)",\"target\":{\"low\":");
+ sprintf(buf, "%.1f", pstep->target_lo);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)",\"high\":");
+ sprintf(buf, "%.1f", pstep->target_hi);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"},\"fridgemode\":");
+ sprintf(buf, "%d", pstep->fridge_mode);
+ payload = xstrcat(payload, buf);
+ payload = xstrcat(payload, (char *)"}");
+ comma = true;
+ }
+ payload = xstrcat(payload, (char *)"]");
+ } else {
+ payload = xstrcat(payload, (char *)",\"steps\":null");
+ }
+ payload = xstrcat(payload, (char *)"}");
+ break;
+ }
+ }
+ } else {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ payload = xstrcat(payload, (char *)"\"profile\":null");
+ }
+ }
+ payload = xstrcat(payload, (char *)"}");
+
+ return payload;
+}
+
+
+
+void publishDBirth(void)
+{
+ char *payload = NULL;
+ units_list *unit;
+ int comma = FALSE;
+
+ payload = payload_header();
+ payload = xstrcat(payload, (char *)"{\"units\":[");
+ for (unit = Config.units; unit; unit = unit->next) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ payload = xstrcat(payload, unit_data(unit, true));
+ comma = TRUE;
+ }
+ payload = xstrcat(payload, (char *)"]}}");
+ publisher(mosq, topic_base((char *)"DBIRTH"), payload, true);
+ free(payload);
+ payload = NULL;
+}
+
#endif
+void publishDData(units_list *unit)
+{
+#ifdef HAVE_MOSQUITTO_H
+
+ char *payload = NULL, *topic = NULL;
+
+ if (mqtt_use) {
+ payload = payload_header();
+ payload = xstrcat(payload, unit_data(unit, false));
+ payload = xstrcat(payload, (char *)"}");
+ topic = xstrcat(topic_base((char *)"DDATA"), (char *)"/");
+ topic = xstrcat(topic, unit->alias);
+ publisher(mosq, topic, payload, false);
+ free(payload);
+ payload = NULL;
+ free(topic);
+ topic = NULL;
+ }
+#endif
+}
+
+
+
+void publishNData(bool birth, int flag)
+{
+#ifdef HAVE_MOSQUITTO_H
+ char *payload = NULL, buf[64];
+ struct utsname ubuf;
+ bool comma = false;
+
+ payload = payload_header();
+ payload = xstrcat(payload, (char *)"{");
+
+ if (birth || flag & MQTT_NODE_CONTROL) {
+ payload = xstrcat(payload, (char *)"\"nodecontrol\":{\"reboot\":false,\"rebirth\":false,\"nextserver\":false,\"scanrate\":3000}");
+ comma = true;
+ }
+
+ if (birth) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ payload = xstrcat(payload, (char *)"\"properties\":{\"hardwaremake\":\"Unknown\",\"hardwaremodel\":\"Unknown\"");
+ if (uname(&ubuf) == 0) {
+ payload = xstrcat(payload, (char *)",\"os\":\"");
+ payload = xstrcat(payload, ubuf.sysname);
+ payload = xstrcat(payload, (char *)"\",\"os_version\":\"");
+ payload = xstrcat(payload, ubuf.release);
+ payload = xstrcat(payload, (char *)"\"");
+ } else {
+ payload = xstrcat(payload, (char *)",\"os\":\"Unknown\",\"os_version\":\"Unknown\"");
+ }
+
+ payload = xstrcat(payload, (char *)",\"FW\":\"");
+ payload = xstrcat(payload, (char *)VERSION);
+ payload = xstrcat(payload, (char *)"\"}");
+ comma = true;
+ }
+
+ if (birth || flag & MQTT_NODE_HT) {
+ if (Config.temp_address || Config.hum_address) {
+ if (comma)
+ payload = xstrcat(payload, (char *)",");
+ payload = xstrcat(payload, (char *)"\"HT\":{");
+ if (Config.temp_address) {
+ payload = xstrcat(payload, (char *)"\"temperature\":");
+ sprintf(buf, "%.1f", Config.temp_value / 1000.0);
+ payload = xstrcat(payload, buf);
+ }
+ if (Config.temp_address && Config.hum_address)
+ payload = xstrcat(payload, (char *)",");
+ if (Config.hum_address) {
+ payload = xstrcat(payload, (char *)"\"humidity\":");
+ sprintf(buf, "%.1f", Config.hum_value / 1000.0);
+ payload = xstrcat(payload, buf);
+ }
+ payload = xstrcat(payload, (char *)"}");
+ }
+ }
+ payload = xstrcat(payload, (char *)"}}");
+
+ if (birth)
+ publisher(mosq, topic_base((char *)"NBIRTH"), payload, true);
+ else
+ publisher(mosq, topic_base((char *)"NDATA"), payload, false);
+
+ free(payload);
+ payload = NULL;
+#endif
+}
+
+
+
+void publishBirth(void)
+{
+ publishNData(true, 0);
+ publishDBirth();
+}
+
+
+
+
void mqtt_connect(void)
{
#ifdef HAVE_MOSQUITTO_H
- char *id = NULL;
- char err[1024];
- int rc;
+ char *id = NULL;
+ char err[1024];
+ int rc;
/*
* Initialize mosquitto communication
@@ -134,32 +567,23 @@
return;
}
- if (debug) {
- mosquitto_log_callback_set(mosq, my_log_callback);
- }
-
/*
* Set our will
*/
- state = xstrcpy((char *)"clients/");
- state = xstrcat(state, my_hostname);
- state = xstrcat(state, (char *)"/thermferm/state");
- if ((rc = mosquitto_will_set(mosq, state, 1, (char *)"0", mqtt_qos, TRUE))) {
- if (rc == MOSQ_ERR_INVAL) {
- syslog(LOG_NOTICE, "MQTT: mosquitto_will_set: input parameters invalid");
- } else if (rc == MOSQ_ERR_NOMEM) {
- syslog(LOG_NOTICE, "MQTT: mosquitto_will_set: Out of Memory");
- } else if (rc == MOSQ_ERR_PAYLOAD_SIZE) {
- syslog(LOG_NOTICE, "MQTT: mosquitto_will_set: invalid payload size");
- }
+ if ((rc = mosquitto_will_set(mosq, topic_base((char *)"NDEATH"), 0, NULL, mqtt_qos, false))) {
+ if (rc > MOSQ_ERR_SUCCESS)
+ syslog(LOG_NOTICE, "MQTT: mosquitto_will_set: %s", mosquitto_strerror(rc));
mosquitto_lib_cleanup();
return;
}
+ mosquitto_log_callback_set(mosq, my_log_callback);
mosquitto_max_inflight_messages_set(mosq, max_inflight);
mosquitto_connect_callback_set(mosq, my_connect_callback);
mosquitto_disconnect_callback_set(mosq, my_disconnect_callback);
mosquitto_publish_callback_set(mosq, my_publish_callback);
+ mosquitto_message_callback_set(mosq, my_message_callback);
+ mosquitto_subscribe_callback_set(mosq, my_subscribe_callback);
if ((rc = mosquitto_connect(mosq, Config.mqtt_host, Config.mqtt_port, keepalive))) {
if (rc == MOSQ_ERR_ERRNO) {
@@ -178,7 +602,7 @@
* Initialise is complete, report our presence state
*/
mosquitto_loop_start(mosq);
- mosquitto_publish(mosq, &mqtt_mid_sent, state, 1, (char *)"1", mqtt_qos, 1);
+ publishBirth();
}
#endif
}
@@ -189,7 +613,6 @@
{
#ifdef HAVE_MOSQUITTO_H
int rc;
- char buf[128];
if (mqtt_use) {
/*
@@ -197,9 +620,8 @@
* After that, remove the retained topic.
*/
syslog(LOG_NOTICE, "MQTT disconnecting");
- sprintf(buf, "0");
- mosquitto_publish(mosq, &mqtt_mid_sent, state, strlen(buf), buf, mqtt_qos, true);
- mosquitto_publish(mosq, &mqtt_mid_sent, state, 0, NULL, mqtt_qos, true);
+ publisher(mosq, topic_base((char *)"DBIRTH"), NULL, true);
+ publisher(mosq, topic_base((char *)"NBIRTH"), NULL, true);
mqtt_last_mid = mqtt_mid_sent;
mqtt_status = STATUS_WAITING;
mqtt_my_shutdown = TRUE;
@@ -220,6 +642,7 @@
mosquitto_loop_stop(mosq, FALSE);
mosquitto_destroy(mosq);
mosquitto_lib_cleanup();
+ mqtt_use = FALSE;
syslog(LOG_NOTICE, "MQTT disconnected");
}
#endif
@@ -227,60 +650,3 @@
-void mqtt_publish_int(char *uuid, char *tail, int value)
-{
-#ifdef HAVE_MOSQUITTO_H
- char topic[1024], buf[128];
-
- if (mqtt_use) {
- snprintf(topic, 1023, "fermenter/%s/%s/%s", my_hostname, uuid, tail);
- snprintf(buf, 127, "%d", value);
- mosquitto_publish(mosq, &mqtt_mid_sent, topic, strlen(buf), buf, mqtt_qos, 1);
- }
-#endif
-}
-
-
-
-void mqtt_publish_float(char *uuid, char *tail, float value, int decimals)
-{
-#ifdef HAVE_MOSQUITTO_H
- char topic[1024], buf[128];
-
- if (mqtt_use) {
- snprintf(topic, 1023, "fermenter/%s/%s/%s", my_hostname, uuid, tail);
- snprintf(buf, 127, "%.*f", decimals, value);
- mosquitto_publish(mosq, &mqtt_mid_sent, topic, strlen(buf), buf, mqtt_qos, 1);
- }
-#endif
-}
-
-
-
-void mqtt_publish_str(char *uuid, char *tail, char *value)
-{
-#ifdef HAVE_MOSQUITTO_H
- char topic[1024], buf[128];
-
- if (mqtt_use) {
- snprintf(topic, 1023, "fermenter/%s/%s/%s", my_hostname, uuid, tail);
- snprintf(buf, 127, "%s", value);
- mosquitto_publish(mosq, &mqtt_mid_sent, topic, strlen(buf), buf, mqtt_qos, 1);
- }
-#endif
-}
-
-
-
-void mqtt_publish_clear(char *uuid, char *tail)
-{
-#ifdef HAVE_MOSQUITTO_H
- char topic[1024];
-
- if (mqtt_use) {
- snprintf(topic, 1023, "bmsd/%s/%s/%s", my_hostname, uuid, tail);
- mosquitto_publish(mosq, &mqtt_mid_sent, topic, 0, NULL, mqtt_qos, 1);
- }
-#endif
-}
-