You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
105 lines
2.3 KiB
105 lines
2.3 KiB
/*
|
|
|
|
PROMETHEUS METRICS MODULE
|
|
|
|
Copyright (C) 2020 by Maxim Prokhorov <prokhorov dot max at outlook dot com>
|
|
|
|
*/
|
|
|
|
#include "espurna.h"
|
|
|
|
#if WEB_SUPPORT && PROMETHEUS_SUPPORT
|
|
|
|
#include "prometheus.h"
|
|
|
|
#include "api.h"
|
|
#include "relay.h"
|
|
#include "sensor.h"
|
|
#include "web.h"
|
|
|
|
#include <cmath>
|
|
|
|
namespace espurna {
|
|
namespace prometheus {
|
|
namespace build {
|
|
namespace {
|
|
|
|
constexpr bool relaySupport() {
|
|
return 1 == RELAY_SUPPORT;
|
|
}
|
|
|
|
constexpr bool sensorSupport() {
|
|
return 1 == SENSOR_SUPPORT;
|
|
}
|
|
|
|
static_assert(relaySupport() || sensorSupport(), "");
|
|
|
|
} // namespace
|
|
} // namespace build
|
|
|
|
namespace {
|
|
|
|
void handler(AsyncWebServerRequest* request) {
|
|
|
|
// TODO: Add more stuff?
|
|
// Note: Response 'stream' backing buffer is customizable. Default is 1460 bytes (see ESPAsyncWebServer.h)
|
|
// In case printf overflows, memory of CurrentSize+N{overflow} will be allocated to replace
|
|
// the existing buffer. Previous buffer will be copied into the new and destroyed after that.
|
|
auto *response = request->beginResponseStream("text/plain");
|
|
|
|
if (build::relaySupport()) {
|
|
for (size_t index = 0; index < relayCount(); ++index) {
|
|
response->printf_P(PSTR("relay%u %d\n"), index, relayStatus(index) ? 1 : 0);
|
|
}
|
|
}
|
|
|
|
if (build::sensorSupport()) {
|
|
for (size_t index = 0; index < magnitudeCount(); ++index) {
|
|
auto value = magnitudeValue(index);
|
|
if (value) {
|
|
value.topic.replace("/", "");
|
|
response->printf_P(PSTR("%s %s\n"),
|
|
value.topic.c_str(), value.repr.c_str());
|
|
}
|
|
}
|
|
}
|
|
|
|
response->write('\n');
|
|
|
|
request->send(response);
|
|
}
|
|
|
|
void setup() {
|
|
#if API_SUPPORT
|
|
apiRegister(F("metrics"),
|
|
[](ApiRequest& request) {
|
|
request.handle(handler);
|
|
return true;
|
|
},
|
|
nullptr
|
|
);
|
|
#else
|
|
webRequestRegister([](AsyncWebServerRequest* request) {
|
|
if (request->url().equals(F(API_BASE_PATH "metrics"))) {
|
|
if (apiAuthenticate(request)) {
|
|
handler(request);
|
|
return true;
|
|
}
|
|
request->send(403);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
});
|
|
#endif
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace prometheus
|
|
} // namespace espurna
|
|
|
|
void prometheusSetup() {
|
|
espurna::prometheus::setup();
|
|
}
|
|
|
|
#endif // PROMETHEUS_SUPPORT
|