btclock_v3/src/lib/block_notify.cpp

325 lines
No EOL
11 KiB
C++

#include "block_notify.hpp"
// Initialize static members
esp_websocket_client_handle_t BlockNotify::wsClient = nullptr;
uint32_t BlockNotify::currentBlockHeight = 878000;
uint16_t BlockNotify::blockMedianFee = 1;
bool BlockNotify::notifyInit = false;
unsigned long int BlockNotify::lastBlockUpdate = 0;
TaskHandle_t BlockNotify::taskHandle = nullptr;
const char* BlockNotify::mempoolWsCert = R"EOF(
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
)EOF";
void BlockNotify::onWebsocketEvent(void *handler_args, esp_event_base_t base, int32_t event_id, void *event_data) {
esp_websocket_event_data_t *data = (esp_websocket_event_data_t *)event_data;
BlockNotify& instance = BlockNotify::getInstance();
switch (event_id) {
case WEBSOCKET_EVENT_CONNECTED:
{
notifyInit = true;
Serial.print(F("Connected to "));
Serial.println(preferences.getString("mempoolInstance", DEFAULT_MEMPOOL_INSTANCE));
JsonDocument doc;
doc["action"] = "want";
JsonArray dataArray = doc.createNestedArray("data");
dataArray.add("blocks");
dataArray.add("mempool-blocks");
String sub;
serializeJson(doc, sub);
esp_websocket_client_send_text(wsClient, sub.c_str(), sub.length(), portMAX_DELAY);
break;
}
case WEBSOCKET_EVENT_DATA:
instance.onWebsocketMessage(data);
break;
case WEBSOCKET_EVENT_DISCONNECTED:
Serial.println(F("Mempool.space WS Connection Closed"));
break;
case WEBSOCKET_EVENT_ERROR:
Serial.println(F("Mempool.space WS Connection Error"));
break;
}
}
void BlockNotify::onWebsocketMessage(esp_websocket_event_data_t *data) {
JsonDocument doc;
JsonDocument filter;
filter["block"]["height"] = true;
filter["mempool-blocks"][0]["medianFee"] = true;
deserializeJson(doc, (char*)data->data_ptr, DeserializationOption::Filter(filter));
if (doc["block"].is<JsonObject>()) {
JsonObject block = doc["block"];
if (block["height"].as<uint>() != currentBlockHeight) {
processNewBlock(block["height"].as<uint>());
}
}
else if (doc["mempool-blocks"].is<JsonArray>()) {
JsonArray blockInfo = doc["mempool-blocks"].as<JsonArray>();
uint medianFee = (uint)round(blockInfo[0]["medianFee"].as<double>());
processNewBlockFee(medianFee);
}
}
void BlockNotify::setup() {
IPAddress result;
int dnsErr = -1;
String mempoolInstance = preferences.getString("mempoolInstance", DEFAULT_MEMPOOL_INSTANCE);
while (dnsErr != 1 && !strchr(mempoolInstance.c_str(), ':')) {
dnsErr = WiFi.hostByName(mempoolInstance.c_str(), result);
if (dnsErr != 1) {
Serial.print(mempoolInstance);
Serial.println(F("mempool DNS could not be resolved"));
WiFi.reconnect();
vTaskDelay(pdMS_TO_TICKS(1000));
}
}
// Get current block height through regular API
int blockFetch = fetchLatestBlock();
if (blockFetch > currentBlockHeight)
currentBlockHeight = blockFetch;
if (currentBlockHeight != -1) {
lastBlockUpdate = esp_timer_get_time() / 1000000;
}
if (workQueue != nullptr) {
WorkItem blockUpdate = {TASK_BLOCK_UPDATE, 0};
xQueueSend(workQueue, &blockUpdate, portMAX_DELAY);
}
const bool useSSL = preferences.getBool("mempoolSecure", DEFAULT_MEMPOOL_SECURE);
const String protocol = useSSL ? "wss" : "ws";
String wsUri = protocol + "://" + mempoolInstance + "/api/v1/ws";
esp_websocket_client_config_t config = {
.task_stack = (6*1024),
.user_agent = USER_AGENT
};
if (useSSL) {
config.cert_pem = mempoolWsCert;
}
config.uri = wsUri.c_str();
Serial.printf("Connecting to %s\r\n", mempoolInstance.c_str());
wsClient = esp_websocket_client_init(&config);
esp_websocket_register_events(wsClient, WEBSOCKET_EVENT_ANY, onWebsocketEvent, wsClient);
esp_websocket_client_start(wsClient);
}
void BlockNotify::processNewBlock(uint32_t newBlockHeight) {
if (newBlockHeight <= currentBlockHeight)
{
return;
}
currentBlockHeight = newBlockHeight;
lastBlockUpdate = esp_timer_get_time() / 1000000;
if (workQueue != nullptr)
{
WorkItem blockUpdate = {TASK_BLOCK_UPDATE, 0};
xQueueSend(workQueue, &blockUpdate, portMAX_DELAY);
}
if (ScreenHandler::getCurrentScreen() != SCREEN_BLOCK_HEIGHT &&
preferences.getBool("stealFocus", DEFAULT_STEAL_FOCUS))
{
uint64_t timerPeriod = 0;
if (isTimerActive())
{
timerPeriod = getTimerSeconds();
esp_timer_stop(screenRotateTimer);
}
ScreenHandler::setCurrentScreen(SCREEN_BLOCK_HEIGHT);
if (timerPeriod > 0)
{
esp_timer_start_periodic(screenRotateTimer,
timerPeriod * usPerSecond);
}
vTaskDelay(pdMS_TO_TICKS(315*NUM_SCREENS)); // Extra delay because of screen switching
}
if (preferences.getBool("ledFlashOnUpd", DEFAULT_LED_FLASH_ON_UPD))
{
vTaskDelay(pdMS_TO_TICKS(250)); // Wait until screens are updated
getLedHandler().queueEffect(LED_FLASH_BLOCK_NOTIFY);
}
}
void BlockNotify::processNewBlockFee(uint16_t newBlockFee) {
if (blockMedianFee == newBlockFee)
{
return;
}
blockMedianFee = newBlockFee;
if (workQueue != nullptr)
{
WorkItem blockUpdate = {TASK_FEE_UPDATE, 0};
xQueueSend(workQueue, &blockUpdate, portMAX_DELAY);
}
}
uint32_t BlockNotify::getBlockHeight() const {
return currentBlockHeight;
}
void BlockNotify::setBlockHeight(uint32_t newBlockHeight)
{
currentBlockHeight = newBlockHeight;
}
uint16_t BlockNotify::getBlockMedianFee() const {
return blockMedianFee;
}
void BlockNotify::setBlockMedianFee(uint16_t newBlockMedianFee)
{
blockMedianFee = newBlockMedianFee;
}
bool BlockNotify::isConnected() const
{
if (wsClient == NULL)
return false;
return esp_websocket_client_is_connected(wsClient);
}
bool BlockNotify::isInitialized() const
{
return notifyInit;
}
void BlockNotify::stop()
{
if (wsClient == NULL)
return;
esp_websocket_client_close(wsClient, portMAX_DELAY);
esp_websocket_client_stop(wsClient);
esp_websocket_client_destroy(wsClient);
wsClient = NULL;
}
void BlockNotify::restart()
{
stop();
setup();
}
int BlockNotify::fetchLatestBlock() {
try {
String mempoolInstance = preferences.getString("mempoolInstance", DEFAULT_MEMPOOL_INSTANCE);
const String protocol = preferences.getBool("mempoolSecure", DEFAULT_MEMPOOL_SECURE) ? "https" : "http";
String url = protocol + "://" + mempoolInstance + "/api/blocks/tip/height";
HTTPClient* http = HttpHelper::begin(url);
Serial.println("Fetching block height from " + url);
int httpCode = http->GET();
if (httpCode > 0 && httpCode == HTTP_CODE_OK) {
String blockHeightStr = http->getString();
HttpHelper::end(http);
return blockHeightStr.toInt();
}
HttpHelper::end(http);
Serial.println("HTTP code" + String(httpCode));
} catch (...) {
Serial.println(F("An exception occurred while trying to get the latest block"));
}
return 2203; // B-T-C
}
uint BlockNotify::getLastBlockUpdate() const
{
return lastBlockUpdate;
}
void BlockNotify::setLastBlockUpdate(uint lastUpdate)
{
lastBlockUpdate = lastUpdate;
}