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/*
* Copyright (c) 2021, timmot <tiwwot@protonmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <FileSystemAccessServer/ConnectionFromClient.h>
#include <LibCore/DeprecatedFile.h>
#include <LibGUI/Application.h>
#include <LibGUI/ConnectionToWindowServer.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/MessageBox.h>
namespace FileSystemAccessServer {
static HashMap<int, NonnullRefPtr<ConnectionFromClient>> s_connections;
ConnectionFromClient::ConnectionFromClient(NonnullOwnPtr<Core::LocalSocket> socket)
: IPC::ConnectionFromClient<FileSystemAccessClientEndpoint, FileSystemAccessServerEndpoint>(*this, move(socket), 1)
{
s_connections.set(1, *this);
}
void ConnectionFromClient::die()
{
s_connections.remove(client_id());
GUI::Application::the()->quit();
}
RefPtr<GUI::Window> ConnectionFromClient::create_dummy_child_window(i32 window_server_client_id, i32 parent_window_id)
{
auto window = GUI::Window::construct();
window->set_opacity(0);
window->set_frameless(true);
window->set_window_mode(GUI::WindowMode::Passive);
auto rect = GUI::ConnectionToWindowServer::the().get_window_rect_from_client(window_server_client_id, parent_window_id);
window->set_rect(rect);
window->show();
GUI::ConnectionToWindowServer::the().set_window_parent_from_client(window_server_client_id, parent_window_id, window->window_id());
return window;
}
void ConnectionFromClient::request_file_handler(i32 request_id, i32 window_server_client_id, i32 parent_window_id, DeprecatedString const& path, Core::File::OpenMode requested_access, ShouldPrompt prompt)
{
VERIFY(path.starts_with("/"sv));
bool approved = false;
auto maybe_permissions = m_approved_files.get(path);
auto relevant_permissions = requested_access & (Core::File::OpenMode::Read | Core::File::OpenMode::Write);
VERIFY(relevant_permissions != Core::File::OpenMode::NotOpen);
if (maybe_permissions.has_value())
approved = has_flag(maybe_permissions.value(), relevant_permissions);
if (!approved) {
DeprecatedString access_string;
if (has_flag(requested_access, Core::File::OpenMode::ReadWrite))
access_string = "read and write";
else if (has_flag(requested_access, Core::File::OpenMode::Read))
access_string = "read from";
else if (has_flag(requested_access, Core::File::OpenMode::Write))
access_string = "write to";
auto pid = this->socket().peer_pid().release_value_but_fixme_should_propagate_errors();
auto exe_link = LexicalPath("/proc").append(DeprecatedString::number(pid)).append("exe"sv).string();
auto exe_path = Core::DeprecatedFile::real_path_for(exe_link);
auto main_window = create_dummy_child_window(window_server_client_id, parent_window_id);
if (prompt == ShouldPrompt::Yes) {
auto exe_name = LexicalPath::basename(exe_path);
auto result = GUI::MessageBox::show(main_window, DeprecatedString::formatted("Allow {} ({}) to {} \"{}\"?", exe_name, pid, access_string, path), "File Permissions Requested"sv, GUI::MessageBox::Type::Warning, GUI::MessageBox::InputType::YesNo);
approved = result == GUI::MessageBox::ExecResult::Yes;
} else {
approved = true;
}
if (approved) {
auto new_permissions = relevant_permissions;
if (maybe_permissions.has_value())
new_permissions |= maybe_permissions.value();
m_approved_files.set(path, new_permissions);
}
}
if (approved) {
auto file = Core::File::open(path, requested_access);
if (file.is_error()) {
dbgln("FileSystemAccessServer: Couldn't open {}, error {}", path, file.error());
async_handle_prompt_end(request_id, file.error().code(), Optional<IPC::File> {}, path);
} else {
async_handle_prompt_end(request_id, 0, IPC::File(*file.release_value(), IPC::File::CloseAfterSending), path);
}
} else {
async_handle_prompt_end(request_id, -1, Optional<IPC::File> {}, path);
}
}
void ConnectionFromClient::request_file_read_only_approved(i32 request_id, i32 window_server_client_id, i32 parent_window_id, DeprecatedString const& path)
{
request_file_handler(request_id, window_server_client_id, parent_window_id, path, Core::File::OpenMode::Read, ShouldPrompt::No);
}
void ConnectionFromClient::request_file(i32 request_id, i32 window_server_client_id, i32 parent_window_id, DeprecatedString const& path, Core::File::OpenMode requested_access)
{
request_file_handler(request_id, window_server_client_id, parent_window_id, path, requested_access, ShouldPrompt::Yes);
}
void ConnectionFromClient::prompt_open_file(i32 request_id, i32 window_server_client_id, i32 parent_window_id, DeprecatedString const& window_title, DeprecatedString const& path_to_view, Core::File::OpenMode requested_access, Optional<Vector<GUI::FileTypeFilter>> const& allowed_file_types)
{
auto relevant_permissions = requested_access & (Core::File::OpenMode::Read | Core::File::OpenMode::Write);
VERIFY(relevant_permissions != Core::File::OpenMode::NotOpen);
auto main_window = create_dummy_child_window(window_server_client_id, parent_window_id);
auto user_picked_file = GUI::FilePicker::get_open_filepath(main_window, window_title, path_to_view, false, GUI::Dialog::ScreenPosition::CenterWithinParent, allowed_file_types);
prompt_helper(request_id, user_picked_file, requested_access);
}
void ConnectionFromClient::prompt_save_file(i32 request_id, i32 window_server_client_id, i32 parent_window_id, DeprecatedString const& name, DeprecatedString const& ext, DeprecatedString const& path_to_view, Core::File::OpenMode requested_access)
{
auto relevant_permissions = requested_access & (Core::File::OpenMode::Read | Core::File::OpenMode::Write);
VERIFY(relevant_permissions != Core::File::OpenMode::NotOpen);
auto main_window = create_dummy_child_window(window_server_client_id, parent_window_id);
auto user_picked_file = GUI::FilePicker::get_save_filepath(main_window, name, ext, path_to_view);
prompt_helper(request_id, user_picked_file, requested_access);
}
void ConnectionFromClient::prompt_helper(i32 request_id, Optional<DeprecatedString> const& user_picked_file, Core::File::OpenMode requested_access)
{
if (user_picked_file.has_value()) {
VERIFY(user_picked_file->starts_with("/"sv));
auto file = Core::File::open(user_picked_file.value(), requested_access);
if (file.is_error()) {
dbgln("FileSystemAccessServer: Couldn't open {}, error {}", user_picked_file.value(), file.error());
async_handle_prompt_end(request_id, file.error().code(), Optional<IPC::File> {}, user_picked_file);
} else {
auto maybe_permissions = m_approved_files.get(user_picked_file.value());
auto new_permissions = requested_access & (Core::File::OpenMode::Read | Core::File::OpenMode::Write);
if (maybe_permissions.has_value())
new_permissions |= maybe_permissions.value();
m_approved_files.set(user_picked_file.value(), new_permissions);
async_handle_prompt_end(request_id, 0, IPC::File(*file.release_value(), IPC::File::CloseAfterSending), user_picked_file);
}
} else {
async_handle_prompt_end(request_id, -1, Optional<IPC::File> {}, Optional<DeprecatedString> {});
}
}
Messages::FileSystemAccessServer::ExposeWindowServerClientIdResponse ConnectionFromClient::expose_window_server_client_id()
{
return GUI::ConnectionToWindowServer::the().expose_client_id();
}
}
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