#ifndef MQTT_PROTOCOL_H
|
#define MQTT_PROTOCOL_H
|
|
|
#include "protocol.h"
|
#include <mqtt.h>
|
#include <udp.h>
|
#include <cJSON.h>
|
#include <mbedtls/aes.h>
|
#include <freertos/FreeRTOS.h>
|
#include <freertos/event_groups.h>
|
#include <esp_timer.h>
|
|
#include <functional>
|
#include <string>
|
#include <map>
|
#include <mutex>
|
#include <memory>
|
#include <atomic>
|
|
#define MQTT_PING_INTERVAL_SECONDS 90
|
#define MQTT_RECONNECT_INTERVAL_MS 60000
|
|
#define MQTT_PROTOCOL_SERVER_HELLO_EVENT (1 << 0)
|
|
class MqttProtocol : public Protocol {
|
public:
|
MqttProtocol();
|
~MqttProtocol();
|
|
bool Start() override;
|
bool SendAudio(std::unique_ptr<AudioStreamPacket> packet) override;
|
bool OpenAudioChannel() override;
|
void CloseAudioChannel(bool send_goodbye = true) override;
|
bool IsAudioChannelOpened() const override;
|
void PrepareForNetworkStandby() override;
|
|
private:
|
// Alive flag for safe scheduled callbacks - set to false in destructor
|
std::shared_ptr<std::atomic<bool>> alive_ = std::make_shared<std::atomic<bool>>(true);
|
|
EventGroupHandle_t event_group_handle_;
|
|
std::string publish_topic_;
|
|
std::mutex channel_mutex_;
|
std::unique_ptr<Mqtt> mqtt_;
|
std::unique_ptr<Udp> udp_;
|
mbedtls_aes_context aes_ctx_;
|
std::string aes_nonce_;
|
std::string udp_server_;
|
int udp_port_;
|
uint32_t local_sequence_;
|
uint32_t remote_sequence_;
|
esp_timer_handle_t reconnect_timer_;
|
bool network_standby_preparing_ = false;
|
bool audio_channel_opened_ = false;
|
|
bool StartMqttClient(bool report_error=false);
|
void ParseServerHello(const cJSON* root);
|
std::string DecodeHexString(const std::string& hex_string);
|
|
bool SendText(const std::string& text) override;
|
std::string GetHelloMessage();
|
};
|
|
|
#endif // MQTT_PROTOCOL_H
|
