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/*
* Copyright (c) 2021, timmot <tiwwot@protonmail.com>
* Copyright (c) 2022, Mustafa Quraish <mustafa@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/LexicalPath.h>
#include <LibFileSystem/FileSystem.h>
#include <LibFileSystemAccessClient/Client.h>
#include <LibGUI/ConnectionToWindowServer.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Window.h>
namespace FileSystemAccessClient {
static RefPtr<Client> s_the = nullptr;
Client& Client::the()
{
if (!s_the || !s_the->is_open())
s_the = Client::try_create().release_value_but_fixme_should_propagate_errors();
return *s_the;
}
Result Client::request_file_read_only_approved(GUI::Window* parent_window, DeprecatedString const& path)
{
auto const id = get_new_id();
m_promises.set(id, PromiseAndWindow { { Core::Promise<Result>::construct() }, parent_window });
auto parent_window_server_client_id = GUI::ConnectionToWindowServer::the().expose_client_id();
auto child_window_server_client_id = expose_window_server_client_id();
auto parent_window_id = parent_window->window_id();
GUI::ConnectionToWindowServer::the().add_window_stealing_for_client(child_window_server_client_id, parent_window_id);
ScopeGuard guard([parent_window_id, child_window_server_client_id] {
GUI::ConnectionToWindowServer::the().remove_window_stealing_for_client(child_window_server_client_id, parent_window_id);
});
if (path.starts_with('/')) {
async_request_file_read_only_approved(id, parent_window_server_client_id, parent_window_id, path);
} else {
auto full_path = LexicalPath::join(TRY(FileSystem::current_working_directory()), path).string();
async_request_file_read_only_approved(id, parent_window_server_client_id, parent_window_id, full_path);
}
return handle_promise(id);
}
Result Client::request_file(GUI::Window* parent_window, DeprecatedString const& path, Core::File::OpenMode mode)
{
auto const id = get_new_id();
m_promises.set(id, PromiseAndWindow { { Core::Promise<Result>::construct() }, parent_window });
auto parent_window_server_client_id = GUI::ConnectionToWindowServer::the().expose_client_id();
auto child_window_server_client_id = expose_window_server_client_id();
auto parent_window_id = parent_window->window_id();
GUI::ConnectionToWindowServer::the().add_window_stealing_for_client(child_window_server_client_id, parent_window_id);
ScopeGuard guard([parent_window_id, child_window_server_client_id] {
GUI::ConnectionToWindowServer::the().remove_window_stealing_for_client(child_window_server_client_id, parent_window_id);
});
if (path.starts_with('/')) {
async_request_file(id, parent_window_server_client_id, parent_window_id, path, mode);
} else {
auto full_path = LexicalPath::join(TRY(FileSystem::current_working_directory()), path).string();
async_request_file(id, parent_window_server_client_id, parent_window_id, full_path, mode);
}
return handle_promise(id);
}
Result Client::open_file(GUI::Window* parent_window, DeprecatedString const& window_title, StringView path, Core::File::OpenMode requested_access, Optional<Vector<GUI::FileTypeFilter>> const& allowed_file_types)
{
auto const id = get_new_id();
m_promises.set(id, PromiseAndWindow { { Core::Promise<Result>::construct() }, parent_window });
auto parent_window_server_client_id = GUI::ConnectionToWindowServer::the().expose_client_id();
auto child_window_server_client_id = expose_window_server_client_id();
auto parent_window_id = parent_window->window_id();
GUI::ConnectionToWindowServer::the().add_window_stealing_for_client(child_window_server_client_id, parent_window_id);
ScopeGuard guard([parent_window_id, child_window_server_client_id] {
GUI::ConnectionToWindowServer::the().remove_window_stealing_for_client(child_window_server_client_id, parent_window_id);
});
async_prompt_open_file(id, parent_window_server_client_id, parent_window_id, window_title, path, requested_access, allowed_file_types);
return handle_promise(id);
}
Result Client::save_file(GUI::Window* parent_window, DeprecatedString const& name, DeprecatedString const ext, Core::File::OpenMode requested_access)
{
auto const id = get_new_id();
m_promises.set(id, PromiseAndWindow { { Core::Promise<Result>::construct() }, parent_window });
auto parent_window_server_client_id = GUI::ConnectionToWindowServer::the().expose_client_id();
auto child_window_server_client_id = expose_window_server_client_id();
auto parent_window_id = parent_window->window_id();
GUI::ConnectionToWindowServer::the().add_window_stealing_for_client(child_window_server_client_id, parent_window_id);
ScopeGuard guard([parent_window_id, child_window_server_client_id] {
GUI::ConnectionToWindowServer::the().remove_window_stealing_for_client(child_window_server_client_id, parent_window_id);
});
async_prompt_save_file(id, parent_window_server_client_id, parent_window_id, name.is_null() ? "Untitled" : name, ext.is_null() ? "txt" : ext, Core::StandardPaths::home_directory(), requested_access);
return handle_promise(id);
}
void Client::handle_prompt_end(i32 request_id, i32 error, Optional<IPC::File> const& ipc_file, Optional<DeprecatedString> const& chosen_file)
{
auto potential_data = m_promises.get(request_id);
VERIFY(potential_data.has_value());
auto& request_data = potential_data.value();
if (error != 0) {
// We don't want to show an error message for non-existent files since some applications may want
// to handle it as opening a new, named file.
if (error != -1 && error != ENOENT)
GUI::MessageBox::show_error(request_data.parent_window, DeprecatedString::formatted("Opening \"{}\" failed: {}", *chosen_file, strerror(error)));
request_data.promise->resolve(Error::from_errno(error)).release_value_but_fixme_should_propagate_errors();
return;
}
if (FileSystem::is_device(ipc_file->fd())) {
GUI::MessageBox::show_error(request_data.parent_window, DeprecatedString::formatted("Opening \"{}\" failed: Cannot open device files", *chosen_file));
request_data.promise->resolve(Error::from_string_literal("Cannot open device files")).release_value_but_fixme_should_propagate_errors();
return;
}
if (FileSystem::is_directory(ipc_file->fd())) {
GUI::MessageBox::show_error(request_data.parent_window, DeprecatedString::formatted("Opening \"{}\" failed: Cannot open directory", *chosen_file));
request_data.promise->resolve(Error::from_errno(EISDIR)).release_value_but_fixme_should_propagate_errors();
return;
}
auto file_or_error = [&]() -> ErrorOr<File> {
auto stream = TRY(Core::File::adopt_fd(ipc_file->take_fd(), Core::File::OpenMode::ReadWrite));
auto filename = TRY(String::from_deprecated_string(*chosen_file));
return File({}, move(stream), filename);
}();
if (file_or_error.is_error()) {
request_data.promise->resolve(file_or_error.release_error()).release_value_but_fixme_should_propagate_errors();
return;
}
request_data.promise->resolve(file_or_error.release_value()).release_value_but_fixme_should_propagate_errors();
}
void Client::die()
{
for (auto const& entry : m_promises)
handle_prompt_end(entry.key, ECONNRESET, {}, "");
}
int Client::get_new_id()
{
auto const new_id = m_last_id++;
// Note: This verify shouldn't fail, and we should provide a valid ID
// But we probably have more issues if this test fails.
VERIFY(!m_promises.contains(new_id));
return new_id;
}
Result Client::handle_promise(int id)
{
auto result = TRY(m_promises.get(id)->promise->await());
m_promises.remove(id);
return result;
}
}
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