Files
duckdb-ui/src/ui_extension.cpp
2025-02-18 12:16:49 +01:00

142 lines
4.5 KiB
C++

#define DUCKDB_EXTENSION_MAIN
#include "utils/env.hpp"
#include "utils/helpers.hpp"
#include "ui_extension.hpp"
#include "http_server.hpp"
#include <duckdb.hpp>
#include <duckdb/common/string_util.hpp>
#ifdef _WIN32
#define OPEN_COMMAND "start"
#elif __linux__
#define OPEN_COMMAND "xdg-open"
#else
#define OPEN_COMMAND "open"
#endif
#define UI_LOCAL_PORT_SETTING_NAME "ui_local_port"
#define UI_LOCAL_PORT_SETTING_DESCRIPTION "Local port on which the UI server listens"
#define UI_LOCAL_PORT_SETTING_DEFAULT 4213
#define UI_REMOTE_URL_SETTING_NAME "ui_remote_url"
#define UI_REMOTE_URL_SETTING_DESCRIPTION "Remote URL to which the UI server forwards GET requests"
#define UI_REMOTE_URL_SETTING_DEFAULT "https://app.motherduck.com"
namespace duckdb {
namespace internal {
bool StartHttpServer(const ClientContext &context) {
const auto url = GetSetting<std::string>(context, UI_REMOTE_URL_SETTING_NAME,
GetEnvOrDefault(UI_REMOTE_URL_SETTING_NAME, UI_REMOTE_URL_SETTING_DEFAULT));
const uint16_t port = GetSetting(context, UI_LOCAL_PORT_SETTING_NAME, UI_LOCAL_PORT_SETTING_DEFAULT);;
return ui::HttpServer::instance()->Start(port, url, context.db);
}
std::string GetHttpServerLocalURL() {
return StringUtil::Format("http://localhost:%d/", ui::HttpServer::instance()->LocalPort());
}
} // namespace internal
std::string StartUIFunction(ClientContext &context) {
internal::StartHttpServer(context);
auto local_url = internal::GetHttpServerLocalURL();
const std::string command = StringUtil::Format("%s %s", OPEN_COMMAND, local_url);
return system(command.c_str()) ?
StringUtil::Format("Navigate browser to %s", local_url) // open command failed
: StringUtil::Format("MotherDuck UI started at %s", local_url);
}
std::string StartUIServerFunction(ClientContext &context) {
const char* already = internal::StartHttpServer(context) ? "already " : "";
return StringUtil::Format("MotherDuck UI server %sstarted at %s", already, internal::GetHttpServerLocalURL());
}
std::string StopUIServerFunction() {
return ui::HttpServer::instance()->Stop() ? "UI server stopped" : "UI server already stopped";
}
// Connected notification
struct NotifyConnectedFunctionData : public TableFunctionData {
NotifyConnectedFunctionData(std::string _token) : token(_token) {}
std::string token;
};
static unique_ptr<FunctionData> NotifyConnectedBind(ClientContext &, TableFunctionBindInput &input,
vector<LogicalType> &out_types, vector<string> &out_names) {
if (input.inputs[0].IsNull()) {
throw BinderException("Must provide a token");
}
out_names.emplace_back("result");
out_types.emplace_back(LogicalType::VARCHAR);
return make_uniq<NotifyConnectedFunctionData>(input.inputs[0].ToString());
}
std::string NotifyConnectedFunction(ClientContext &context, TableFunctionInput &input) {
auto &inputs = input.bind_data->Cast<NotifyConnectedFunctionData>();
ui::HttpServer::instance()->SendConnectedEvent(inputs.token);
return "OK";
}
// - connected notification
std::string NotifyCatalogChangedFunction() {
ui::HttpServer::instance()->SendCatalogChangedEvent();
return "OK";
}
static void LoadInternal(DatabaseInstance &instance) {
auto &config = DBConfig::GetConfig(instance);
config.AddExtensionOption(UI_LOCAL_PORT_SETTING_NAME, UI_LOCAL_PORT_SETTING_DESCRIPTION,
LogicalType::USMALLINT, Value::USMALLINT(UI_LOCAL_PORT_SETTING_DEFAULT));
config.AddExtensionOption(
UI_REMOTE_URL_SETTING_NAME, UI_REMOTE_URL_SETTING_DESCRIPTION, LogicalType::VARCHAR,
Value(GetEnvOrDefault(UI_REMOTE_URL_SETTING_NAME, UI_REMOTE_URL_SETTING_DEFAULT)));
RESISTER_TF("start_ui", StartUIFunction);
RESISTER_TF("start_ui_server", StartUIServerFunction);
RESISTER_TF("stop_ui_server", StopUIServerFunction);
RESISTER_TF("notify_ui_catalog_changed", NotifyCatalogChangedFunction);
RESISTER_TF_ARGS("notify_ui_connected", {LogicalType::VARCHAR}, NotifyConnectedFunction, NotifyConnectedBind);
}
void UiExtension::Load(DuckDB &db) {
LoadInternal(*db.instance);
}
std::string UiExtension::Name() {
return "ui";
}
std::string UiExtension::Version() const {
#ifdef UI_EXTENSION_GIT_SHA
return UI_EXTENSION_GIT_SHA;
#else
return "";
#endif
}
} // namespace duckdb
extern "C" {
DUCKDB_EXTENSION_API void ui_init(duckdb::DatabaseInstance &db) {
duckdb::DuckDB db_wrapper(db);
db_wrapper.LoadExtension<duckdb::UiExtension>();
}
DUCKDB_EXTENSION_API const char *ui_version() {
return duckdb::DuckDB::LibraryVersion();
}
}
#ifndef DUCKDB_EXTENSION_MAIN
#error DUCKDB_EXTENSION_MAIN not defined
#endif