mirror of https://github.com/arendst/Tasmota.git
100 lines
3.5 KiB
C++
100 lines
3.5 KiB
C++
/*
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xsns_91_prometheus.ino - Web based information for Tasmota
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Copyright (C) 2020 Theo Arends
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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//#define USE_PROMETHEUS // Enable retrieval of metrics
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#ifdef USE_PROMETHEUS
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/*********************************************************************************************\
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* Prometheus support
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\*********************************************************************************************/
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#define XSNS_91 91
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void HandleMetrics(void)
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{
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if (!HttpCheckPriviledgedAccess()) { return; }
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AddLog_P(LOG_LEVEL_DEBUG, S_LOG_HTTP, PSTR("Prometheus"));
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WSContentBegin(200, CT_PLAIN);
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char parameter[FLOATSZ];
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if (global_temperature != 9999) {
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dtostrfd(global_temperature, Settings.flag2.temperature_resolution, parameter);
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WSContentSend_P(PSTR("# TYPE global_temperature gauge\nglobal_temperature %s\n"), parameter);
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}
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if (global_humidity != 0) {
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dtostrfd(global_humidity, Settings.flag2.humidity_resolution, parameter);
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WSContentSend_P(PSTR("# TYPE global_humidity gauge\nglobal_humidity %s\n"), parameter);
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}
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if (global_pressure != 0) {
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dtostrfd(global_pressure, Settings.flag2.pressure_resolution, parameter);
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WSContentSend_P(PSTR("# TYPE global_pressure gauge\nglobal_pressure %s\n"), parameter);
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}
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#ifdef USE_ENERGY_SENSOR
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dtostrfd(Energy.voltage[0], Settings.flag2.voltage_resolution, parameter);
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WSContentSend_P(PSTR("# TYPE voltage gauge\nvoltage %s\n"), parameter);
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dtostrfd(Energy.current[0], Settings.flag2.current_resolution, parameter);
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WSContentSend_P(PSTR("# TYPE current gauge\ncurrent %s\n"), parameter);
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dtostrfd(Energy.active_power[0], Settings.flag2.wattage_resolution, parameter);
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WSContentSend_P(PSTR("# TYPE active_power gauge\nactive_power %s\n"), parameter);
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dtostrfd(Energy.daily, Settings.flag2.energy_resolution, parameter);
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WSContentSend_P(PSTR("# TYPE energy_daily gauge\nenergy_daily %s\n"), parameter);
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dtostrfd(Energy.total, Settings.flag2.energy_resolution, parameter);
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WSContentSend_P(PSTR("# TYPE energy_total counter\nenergy_total %s\n"), parameter);
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#endif
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/*
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// Alternative method using the complete sensor JSON data
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// For prometheus it may need to be decoded to # TYPE messages
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mqtt_data[0] = '\0';
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MqttShowSensor();
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char json[strlen(mqtt_data) +1];
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snprintf_P(json, sizeof(json), mqtt_data);
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// Do your Prometheus specific processing here.
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// Look at function DisplayAnalyzeJson() in file xdrv_13_display.ino as an example how to decode the JSON message
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WSContentSend_P(json);
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*/
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WSContentEnd();
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}
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/*********************************************************************************************\
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* Interface
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\*********************************************************************************************/
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bool Xsns91(uint8_t function)
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{
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bool result = false;
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switch (function) {
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case FUNC_WEB_ADD_HANDLER:
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WebServer->on("/metrics", HandleMetrics);
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break;
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}
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return result;
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}
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#endif // USE_PROMETHEUS
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