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Telegram/SourceFiles/platform/linux/file_utilities_linux.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "platform/linux/file_utilities_linux.h"
+
+#include "base/platform/base_platform_info.h"
+#include "base/platform/linux/base_linux_xdp_utilities.h"
+#include "base/platform/linux/base_linux_xdg_activation_token.h"
+#include "base/random.h"
+
+#include <fcntl.h>
+#include <xdpopenuri/xdpopenuri.hpp>
+#include <xdprequest/xdprequest.hpp>
+
+namespace Platform {
+namespace File {
+namespace {
+
+using namespace gi::repository;
+using base::Platform::XdgActivationToken;
+
+} // namespace
+
+bool UnsafeShowOpenWith(const QString &filepath) {
+	auto proxy = XdpOpenURI::OpenURIProxy::new_for_bus_sync(
+		Gio::BusType::SESSION_,
+		Gio::DBusProxyFlags::NONE_,
+		base::Platform::XDP::kService,
+		base::Platform::XDP::kObjectPath,
+		nullptr);
+
+	if (!proxy) {
+		return false;
+	}
+
+	auto interface = XdpOpenURI::OpenURI(proxy);
+	if (interface.get_version() < 3) {
+		return false;
+	}
+
+	const auto fd = open(
+		QFile::encodeName(filepath).constData(),
+		O_RDONLY | O_CLOEXEC);
+
+	if (fd == -1) {
+		return false;
+	}
+
+	const auto handleToken = "tdesktop"
+		+ std::to_string(base::RandomValue<uint>());
+
+	std::string uniqueName = proxy.get_connection().get_unique_name();
+	uniqueName.erase(0, 1);
+	uniqueName.replace(uniqueName.find('.'), 1, 1, '_');
+
+	auto request = XdpRequest::Request(
+		XdpRequest::RequestProxy::new_sync(
+			proxy.get_connection(),
+			Gio::DBusProxyFlags::NONE_,
+			base::Platform::XDP::kService,
+			base::Platform::XDP::kObjectPath
+				+ std::string("/request/")
+				+ uniqueName
+				+ '/'
+				+ handleToken,
+			nullptr,
+			nullptr));
+
+	if (!request) {
+		close(fd);
+		return false;
+	}
+
+	auto loop = GLib::MainLoop::new_();
+
+	const auto signalId = request.signal_response().connect([=](
+			XdpRequest::Request,
+			guint,
+			GLib::Variant) mutable {
+		loop.quit();
+	});
+
+	const auto signalGuard = gsl::finally([&] {
+		request.disconnect(signalId);
+	});
+
+	auto result = interface.call_open_file_sync(
+		base::Platform::XDP::ParentWindowID(),
+		GLib::Variant::new_handle(0),
+		GLib::Variant::new_array({
+			GLib::Variant::new_dict_entry(
+				GLib::Variant::new_string("handle_token"),
+				GLib::Variant::new_variant(
+					GLib::Variant::new_string(handleToken))),
+			GLib::Variant::new_dict_entry(
+				GLib::Variant::new_string("activation_token"),
+				GLib::Variant::new_variant(
+					GLib::Variant::new_string(
+						XdgActivationToken().toStdString()))),
+			GLib::Variant::new_dict_entry(
+				GLib::Variant::new_string("ask"),
+				GLib::Variant::new_variant(
+					GLib::Variant::new_boolean(true))),
+		}),
+		Gio::UnixFDList::new_from_array(&fd, 1),
+		nullptr);
+
+	if (!result) {
+		return false;
+	}
+
+	QWidget window;
+	window.setAttribute(Qt::WA_DontShowOnScreen);
+	window.setWindowModality(Qt::ApplicationModal);
+	window.show();
+	loop.run();
+
+	return true;
+}
+
+} // namespace File
+} // namespace Platform