ladybird/Userland/Services/WebDriver/Session.cpp
Timothy Flynn 956fa84f12 WebDriver: Specify callbacks for clients to launch browser windows
This moves the actual launching of browser windows to the WebDriver main
file. This will allow Ladybird to specify its own callback and re-use
Serenity's Session class.
2022-12-15 17:29:19 +00:00

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/*
* Copyright (c) 2022, Florent Castelli <florent.castelli@gmail.com>
* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
* Copyright (c) 2022, Tobias Christiansen <tobyase@serenityos.org>
* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
* Copyright (c) 2022, Tim Flynn <trflynn89@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "Session.h"
#include "Client.h"
#include <LibCore/LocalServer.h>
#include <LibCore/StandardPaths.h>
#include <LibCore/Stream.h>
#include <LibCore/System.h>
#include <unistd.h>
namespace WebDriver {
Session::Session(unsigned session_id, NonnullRefPtr<Client> client, Web::WebDriver::LadybirdOptions options)
: m_client(move(client))
, m_options(move(options))
, m_id(session_id)
{
}
Session::~Session()
{
if (auto error = stop(); error.is_error())
warnln("Failed to stop session {}: {}", m_id, error.error());
}
ErrorOr<NonnullRefPtr<Core::LocalServer>> Session::create_server(DeprecatedString const& socket_path, NonnullRefPtr<ServerPromise> promise)
{
dbgln("Listening for WebDriver connection on {}", socket_path);
auto server = TRY(Core::LocalServer::try_create());
server->listen(socket_path);
server->on_accept = [this, promise](auto client_socket) {
auto maybe_connection = adopt_nonnull_ref_or_enomem(new (nothrow) WebContentConnection(move(client_socket), m_client, session_id()));
if (maybe_connection.is_error()) {
promise->resolve(maybe_connection.release_error());
return;
}
dbgln("WebDriver is connected to WebContent socket");
m_web_content_connection = maybe_connection.release_value();
promise->resolve({});
};
server->on_accept_error = [promise](auto error) {
promise->resolve(move(error));
};
return server;
}
ErrorOr<void> Session::start(LaunchBrowserCallbacks const& callbacks)
{
auto promise = TRY(ServerPromise::try_create());
auto web_content_socket_path = DeprecatedString::formatted("{}/webdriver/session_{}_{}", TRY(Core::StandardPaths::runtime_directory()), getpid(), m_id);
auto web_content_server = TRY(create_server(web_content_socket_path, promise));
if (m_options.headless)
m_browser_pid = TRY(callbacks.launch_headless_browser(web_content_socket_path));
else
m_browser_pid = TRY(callbacks.launch_browser(web_content_socket_path));
// FIXME: Allow this to be more asynchronous. For now, this at least allows us to propagate
// errors received while accepting the Browser and WebContent sockets.
TRY(promise->await());
m_started = true;
return {};
}
// https://w3c.github.io/webdriver/#dfn-close-the-session
Web::WebDriver::Response Session::stop()
{
if (!m_started)
return JsonValue {};
// 1. Perform the following substeps based on the remote ends type:
// NOTE: We perform the "Remote end is an endpoint node" steps in the WebContent process.
m_web_content_connection->close_session();
// 2. Remove the current session from active sessions.
// NOTE: Handled by WebDriver::Client.
// 3. Perform any implementation-specific cleanup steps.
if (m_browser_pid.has_value()) {
MUST(Core::System::kill(*m_browser_pid, SIGTERM));
m_browser_pid = {};
}
m_started = false;
// 4. If an error has occurred in any of the steps above, return the error, otherwise return success with data null.
return JsonValue {};
}
}