Function download

Tactility/Source/network/Http.cpp:17–107

static const auto LOGGER = Logger("HTTP");

void download(
    const std::string& url,
    const std::string& certFilePath,
    const std::string &downloadFilePath,
    const std::function<void()>& onSuccess,
    const std::function<void(const char* errorMessage)>& onError
) {
    service::gui::warnIfRunningOnGuiTask("HTTP");
    LOGGER.info("Downloading from {} to {}", url, downloadFilePath);
#ifdef ESP_PLATFORM
    getMainDispatcher().dispatch([url, certFilePath, downloadFilePath, onSuccess, onError] {
        LOGGER.info("Loading certificate");
        auto certificate = file::readString(certFilePath);
        if (certificate == nullptr) {
            onError("Failed to read certificate");
            return;
        }

        auto certificate_length = strlen(reinterpret_cast<const char*>(certificate.get())) + 1;

        // TODO: Fix for missing initializer warnings
        auto config = std::make_unique<esp_http_client_config_t>();
        memset(config.get(), 0, sizeof(esp_http_client_config_t));
        config->url = url.c_str();
        config->auth_type = HTTP_AUTH_TYPE_NONE;
        config->cert_pem = reinterpret_cast<const char*>(certificate.get());
        config->cert_len = certificate_length;
        config->tls_version = ESP_HTTP_CLIENT_TLS_VER_TLS_1_2;
        config->method = HTTP_METHOD_GET;
        config->timeout_ms = 5000;
        config->transport_type = HTTP_TRANSPORT_OVER_SSL;

        auto client = std::make_unique<EspHttpClient>();
        if (!client->init(std::move(config))) {
            onError("Failed to initialize client");
            return;
        }

        if (!client->open()) {
            onError("Failed to open connection");
            return;
        }

        if (!client->fetchHeaders()) {
            onError("Failed to get request headers");
            return;
        }

        if (!client->isStatusCodeOk()) {
            onError("Server response is not OK");
            return;
        }

        auto bytes_left = client->getContentLength();

        auto lock = file::getLock(downloadFilePath)->asScopedLock();
        lock.lock();
        LOGGER.info("opening {}", downloadFilePath);