44 lines
1.7 KiB
C++
44 lines
1.7 KiB
C++
// SPDX-License-Identifier: GPL-2.0-or-later
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#pragma once
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#include <memory>
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#include <stdint.h>
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#include <Arduino.h>
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#include <HTTPClient.h>
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#include "Configuration.h"
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#include "PowerMeterProvider.h"
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using Auth_t = PowerMeterHttpConfig::Auth;
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using Unit_t = PowerMeterHttpConfig::Unit;
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class PowerMeterHttpJson : public PowerMeterProvider {
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public:
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~PowerMeterHttpJson();
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bool init() final { return true; }
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void loop() final;
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float getPowerTotal() const final;
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void doMqttPublish() const final;
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bool queryPhase(int phase, PowerMeterHttpConfig const& config);
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char httpPowerMeterError[256];
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float getCached(size_t idx) { return _cache[idx]; }
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private:
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uint32_t _lastPoll;
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std::array<float,POWERMETER_MAX_PHASES> _cache;
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std::array<float,POWERMETER_MAX_PHASES> _powerValues;
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std::unique_ptr<WiFiClient> wifiClient;
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std::unique_ptr<HTTPClient> httpClient;
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String httpResponse;
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bool httpRequest(int phase, const String& host, uint16_t port, const String& uri, bool https, PowerMeterHttpConfig const& config);
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bool extractUrlComponents(String url, String& _protocol, String& _hostname, String& _uri, uint16_t& uint16_t, String& _base64Authorization);
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String extractParam(String& authReq, const String& param, const char delimit);
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String getcNonce(const int len);
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String getDigestAuth(String& authReq, const String& username, const String& password, const String& method, const String& uri, unsigned int counter);
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bool tryGetFloatValueForPhase(int phase, String jsonPath, Unit_t unit, bool signInverted);
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void prepareRequest(uint32_t timeout, const char* httpHeader, const char* httpValue);
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String sha256(const String& data);
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};
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