Method synchronousCommand

FluidNC/src/WebUI/WebUIServer.cpp:494–529

    }

    void WebUI_Server::synchronousCommand(
        AsyncWebServerRequest* request, const char* cmd, bool silent, AuthenticationLevel auth_level, bool allowedInMotion) {
        // Can we do this with async?
        if (http_block_during_motion->get() && inMotionState() && !allowedInMotion) {  // ESP800 is to allow a cached paged reload on webui3
            request->send(503, "text/plain", "Try again when not moving\n");
            return;
        }
        char line[256];
        strncpy(line, cmd, 255);
        AsyncWebServerResponse* response;
        if (request->method() == HTTP_GET) {
            WebClient* webClient = new WebClient();
            webClient->attachWS(silent);
            webClient->executeCommandBackground(line);
            response = request->beginChunkedResponse("", [webClient, request](uint8_t* buffer, size_t maxLen, size_t total) mutable -> size_t {
                // The method can change before the end... not good
                //if(request->method() != HTTP_GET)
                //    return 0;
                auto ret = webClient->copyBufferSafe(buffer, min((int)maxLen, 1024), total);
                return ret;
            });
            // onDisconnect MUST always happen, otherwise commands being processed will wait indefinitly to be read
            // by the callback that may never happen if the client is dead
            // We rely on AsyncWebServer to take care of that
            request->onDisconnect([webClient]() {
                webClient->detachWS();
                allChannels.kill(webClient);
                // Should not delete, kill() takes care of that
                //delete webClient;
            });
        } else
            response = request->beginResponse(200, "", "");
        response->addHeader(T_Cache_Control, T_no_cache);
        request->send(response);
        return;
    }

    std::string getSession(AsyncClient* client) {
        return (std::to_string(IPAddress(client->getRemoteAddress())) + ":" + std::to_string(client->getRemotePort()));