OpenDTU-old/src/WebApi_powermeter.cpp
helgeerbe ec67fe1ff7 fix: Power meter value not displayed #355
Enlarge JsonBuffer for webservice response to 2048
2023-08-08 15:58:24 +02:00

282 lines
11 KiB
C++

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) 2022 Thomas Basler and others
*/
#include "WebApi_powermeter.h"
#include "VeDirectFrameHandler.h"
#include "ArduinoJson.h"
#include "AsyncJson.h"
#include "Configuration.h"
#include "MqttHandleVedirectHass.h"
#include "MqttHandleHass.h"
#include "MqttSettings.h"
#include "PowerLimiter.h"
#include "PowerMeter.h"
#include "HttpPowerMeter.h"
#include "WebApi.h"
#include "helper.h"
void WebApiPowerMeterClass::init(AsyncWebServer* server)
{
using std::placeholders::_1;
_server = server;
_server->on("/api/powermeter/status", HTTP_GET, std::bind(&WebApiPowerMeterClass::onStatus, this, _1));
_server->on("/api/powermeter/config", HTTP_GET, std::bind(&WebApiPowerMeterClass::onAdminGet, this, _1));
_server->on("/api/powermeter/config", HTTP_POST, std::bind(&WebApiPowerMeterClass::onAdminPost, this, _1));
_server->on("/api/powermeter/testhttprequest", HTTP_POST, std::bind(&WebApiPowerMeterClass::onTestHttpRequest, this, _1));
}
void WebApiPowerMeterClass::loop()
{
}
void WebApiPowerMeterClass::onStatus(AsyncWebServerRequest* request)
{
AsyncJsonResponse* response = new AsyncJsonResponse(false, 2048);
JsonObject root = response->getRoot();
const CONFIG_T& config = Configuration.get();
root[F("enabled")] = config.PowerMeter_Enabled;
root[F("verbose_logging")] = config.PowerMeter_VerboseLogging;
root[F("source")] = config.PowerMeter_Source;
root[F("interval")] = config.PowerMeter_Interval;
root[F("mqtt_topic_powermeter_1")] = config.PowerMeter_MqttTopicPowerMeter1;
root[F("mqtt_topic_powermeter_2")] = config.PowerMeter_MqttTopicPowerMeter2;
root[F("mqtt_topic_powermeter_3")] = config.PowerMeter_MqttTopicPowerMeter3;
root[F("sdmbaudrate")] = config.PowerMeter_SdmBaudrate;
root[F("sdmaddress")] = config.PowerMeter_SdmAddress;
root[F("http_individual_requests")] = config.PowerMeter_HttpIndividualRequests;
JsonArray httpPhases = root.createNestedArray(F("http_phases"));
for (uint8_t i = 0; i < POWERMETER_MAX_PHASES; i++) {
JsonObject phaseObject = httpPhases.createNestedObject();
phaseObject[F("index")] = i + 1;
phaseObject[F("enabled")] = config.Powermeter_Http_Phase[i].Enabled;
phaseObject[F("url")] = String(config.Powermeter_Http_Phase[i].Url);
phaseObject[F("auth_type")]= config.Powermeter_Http_Phase[i].AuthType;
phaseObject[F("username")] = String(config.Powermeter_Http_Phase[i].Username);
phaseObject[F("password")] = String(config.Powermeter_Http_Phase[i].Password);
phaseObject[F("header_key")] = String(config.Powermeter_Http_Phase[i].HeaderKey);
phaseObject[F("header_value")] = String(config.Powermeter_Http_Phase[i].HeaderValue);
phaseObject[F("json_path")] = String(config.Powermeter_Http_Phase[i].JsonPath);
phaseObject[F("timeout")] = config.Powermeter_Http_Phase[i].Timeout;
}
response->setLength();
request->send(response);
}
void WebApiPowerMeterClass::onAdminGet(AsyncWebServerRequest* request)
{
if (!WebApi.checkCredentials(request)) {
return;
}
this->onStatus(request);
}
void WebApiPowerMeterClass::onAdminPost(AsyncWebServerRequest* request)
{
if (!WebApi.checkCredentials(request)) {
return;
}
AsyncJsonResponse* response = new AsyncJsonResponse();
JsonObject retMsg = response->getRoot();
retMsg[F("type")] = F("warning");
if (!request->hasParam("data", true)) {
retMsg[F("message")] = F("No values found!");
response->setLength();
request->send(response);
return;
}
String json = request->getParam("data", true)->value();
if (json.length() > 4096) {
retMsg[F("message")] = F("Data too large!");
response->setLength();
request->send(response);
return;
}
DynamicJsonDocument root(4096);
DeserializationError error = deserializeJson(root, json);
if (error) {
retMsg[F("message")] = F("Failed to parse data!");
response->setLength();
request->send(response);
return;
}
if (!(root.containsKey("enabled") && root.containsKey("source"))) {
retMsg[F("message")] = F("Values are missing!");
response->setLength();
request->send(response);
return;
}
if (root[F("source")].as<uint8_t>() == PowerMeter.SOURCE_HTTP) {
JsonArray http_phases = root[F("http_phases")];
for (uint8_t i = 0; i < http_phases.size(); i++) {
JsonObject phase = http_phases[i].as<JsonObject>();
if (i > 0 && !phase[F("enabled")].as<bool>()) {
continue;
}
if (i == 0 || phase[F("http_individual_requests")].as<bool>()) {
if (!phase.containsKey("url")
|| (!phase[F("url")].as<String>().startsWith("http://")
&& !phase[F("url")].as<String>().startsWith("https://"))) {
retMsg[F("message")] = F("URL must either start with http:// or https://!");
response->setLength();
request->send(response);
return;
}
if ((phase[F("auth_type")].as<Auth>() != Auth::none)
&& ( phase[F("username")].as<String>().length() == 0 || phase[F("password")].as<String>().length() == 0)) {
retMsg[F("message")] = F("Username or password must not be empty!");
response->setLength();
request->send(response);
return;
}
if (!phase.containsKey("timeout")
|| phase[F("timeout")].as<uint16_t>() <= 0) {
retMsg[F("message")] = F("Timeout must be greater than 0 ms!");
response->setLength();
request->send(response);
return;
}
}
if (!phase.containsKey("json_path")
|| phase[F("json_path")].as<String>().length() == 0) {
retMsg[F("message")] = F("Json path must not be empty!");
response->setLength();
request->send(response);
return;
}
}
}
CONFIG_T& config = Configuration.get();
config.PowerMeter_Enabled = root[F("enabled")].as<bool>();
config.PowerMeter_VerboseLogging = root[F("verbose_logging")].as<bool>();
config.PowerMeter_Source = root[F("source")].as<uint8_t>();
config.PowerMeter_Interval = root[F("interval")].as<uint32_t>();
strlcpy(config.PowerMeter_MqttTopicPowerMeter1, root[F("mqtt_topic_powermeter_1")].as<String>().c_str(), sizeof(config.PowerMeter_MqttTopicPowerMeter1));
strlcpy(config.PowerMeter_MqttTopicPowerMeter2, root[F("mqtt_topic_powermeter_2")].as<String>().c_str(), sizeof(config.PowerMeter_MqttTopicPowerMeter2));
strlcpy(config.PowerMeter_MqttTopicPowerMeter3, root[F("mqtt_topic_powermeter_3")].as<String>().c_str(), sizeof(config.PowerMeter_MqttTopicPowerMeter3));
config.PowerMeter_SdmBaudrate = root[F("sdmbaudrate")].as<uint32_t>();
config.PowerMeter_SdmAddress = root[F("sdmaddress")].as<uint8_t>();
config.PowerMeter_HttpIndividualRequests = root[F("http_individual_requests")].as<bool>();
JsonArray http_phases = root[F("http_phases")];
for (uint8_t i = 0; i < http_phases.size(); i++) {
JsonObject phase = http_phases[i].as<JsonObject>();
config.Powermeter_Http_Phase[i].Enabled = (i == 0 ? true : phase[F("enabled")].as<bool>());
strlcpy(config.Powermeter_Http_Phase[i].Url, phase[F("url")].as<String>().c_str(), sizeof(config.Powermeter_Http_Phase[i].Url));
config.Powermeter_Http_Phase[i].AuthType = phase[F("auth_type")].as<Auth>();
strlcpy(config.Powermeter_Http_Phase[i].Username, phase[F("username")].as<String>().c_str(), sizeof(config.Powermeter_Http_Phase[i].Username));
strlcpy(config.Powermeter_Http_Phase[i].Password, phase[F("password")].as<String>().c_str(), sizeof(config.Powermeter_Http_Phase[i].Password));
strlcpy(config.Powermeter_Http_Phase[i].HeaderKey, phase[F("header_key")].as<String>().c_str(), sizeof(config.Powermeter_Http_Phase[i].HeaderKey));
strlcpy(config.Powermeter_Http_Phase[i].HeaderValue, phase[F("header_value")].as<String>().c_str(), sizeof(config.Powermeter_Http_Phase[i].HeaderValue));
config.Powermeter_Http_Phase[i].Timeout = phase[F("timeout")].as<uint16_t>();
strlcpy(config.Powermeter_Http_Phase[i].JsonPath, phase[F("json_path")].as<String>().c_str(), sizeof(config.Powermeter_Http_Phase[i].JsonPath));
}
Configuration.write();
retMsg[F("type")] = F("success");
retMsg[F("message")] = F("Settings saved!");
response->setLength();
request->send(response);
yield();
delay(1000);
yield();
ESP.restart();
}
void WebApiPowerMeterClass::onTestHttpRequest(AsyncWebServerRequest* request)
{
if (!WebApi.checkCredentials(request)) {
return;
}
AsyncJsonResponse* asyncJsonResponse = new AsyncJsonResponse();
JsonObject retMsg = asyncJsonResponse->getRoot();
retMsg[F("type")] = F("warning");
if (!request->hasParam("data", true)) {
retMsg[F("message")] = F("No values found!");
asyncJsonResponse->setLength();
request->send(asyncJsonResponse);
return;
}
String json = request->getParam("data", true)->value();
if (json.length() > 2048) {
retMsg[F("message")] = F("Data too large!");
asyncJsonResponse->setLength();
request->send(asyncJsonResponse);
return;
}
DynamicJsonDocument root(2048);
DeserializationError error = deserializeJson(root, json);
if (error) {
retMsg[F("message")] = F("Failed to parse data!");
asyncJsonResponse->setLength();
request->send(asyncJsonResponse);
return;
}
if (!root.containsKey("url") || !root.containsKey("auth_type") || !root.containsKey("username") || !root.containsKey("password")
|| !root.containsKey("header_key") || !root.containsKey("header_value")
|| !root.containsKey("timeout") || !root.containsKey("json_path")) {
retMsg[F("message")] = F("Missing fields!");
asyncJsonResponse->setLength();
request->send(asyncJsonResponse);
return;
}
char powerMeterResponse[2000],
errorMessage[256];
char response[200];
if (HttpPowerMeter.httpRequest(root[F("url")].as<String>().c_str(),
root[F("auth_type")].as<Auth>(), root[F("username")].as<String>().c_str(), root[F("password")].as<String>().c_str(),
root[F("header_key")].as<String>().c_str(), root[F("header_value")].as<String>().c_str(), root[F("timeout")].as<uint16_t>(),
powerMeterResponse, sizeof(powerMeterResponse), errorMessage, sizeof(errorMessage))) {
float power;
if (HttpPowerMeter.getFloatValueByJsonPath(powerMeterResponse,
root[F("json_path")].as<String>().c_str(), power)) {
retMsg[F("type")] = F("success");
snprintf_P(response, sizeof(response), "Success! Power: %5.2fW", power);
} else {
snprintf_P(response, sizeof(response), "Error: Could not find value for JSON path!");
}
} else {
snprintf_P(response, sizeof(response), errorMessage);
}
retMsg[F("message")] = F(response);
asyncJsonResponse->setLength();
request->send(asyncJsonResponse);
}