11fe34ce0f
headless-browser currently uses its own PageClient to load web pages in-process. Due to this, it also needs to set up a whole bunch of other objects needed to run LibWeb, e.g. image decoders, request servers, etc. This changes headless-browser to instead implement a WebView to launch WebContent out-of-process. This implementation is almost entirely empty, but can be filled in as-needed. For example, we may want to print JavaScript console messages.
139 lines
4.1 KiB
C++
139 lines
4.1 KiB
C++
/*
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* Copyright (c) 2022, Tim Flynn <trflynn89@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#define AK_DONT_REPLACE_STD
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#include "../HelperProcess.h"
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#include "../Utilities.h"
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#include <AK/Platform.h>
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#include <LibCore/ArgsParser.h>
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#include <LibCore/Directory.h>
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#include <LibCore/EventLoop.h>
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#include <LibCore/StandardPaths.h>
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#include <LibCore/System.h>
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#include <LibCore/TCPServer.h>
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#include <LibMain/Main.h>
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#include <QCoreApplication>
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#include <WebDriver/Client.h>
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#if defined(AK_OS_MACOS)
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# include <crt_externs.h>
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#endif
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extern DeprecatedString s_serenity_resource_root;
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static char** environment()
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{
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#if defined(AK_OS_MACOS)
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return *_NSGetEnviron();
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#else
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extern char** environ;
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return environ;
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#endif
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}
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static ErrorOr<pid_t> launch_process(StringView application, char const* argv[])
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{
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auto paths = TRY(get_paths_for_helper_process(application));
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ErrorOr<pid_t> result = -1;
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for (auto const& path : paths) {
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auto path_view = path.bytes_as_string_view();
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argv[0] = path_view.characters_without_null_termination();
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result = Core::System::posix_spawn(path_view, nullptr, nullptr, const_cast<char**>(argv), environment());
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if (!result.is_error())
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break;
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}
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return result;
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}
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static ErrorOr<pid_t> launch_browser(DeprecatedString const& socket_path)
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{
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char const* argv[] = {
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"ladybird",
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"--webdriver-content-path",
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socket_path.characters(),
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nullptr,
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};
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return launch_process("ladybird"sv, argv);
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}
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static ErrorOr<pid_t> launch_headless_browser(DeprecatedString const& socket_path)
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{
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auto resources = DeprecatedString::formatted("{}/res", s_serenity_resource_root);
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char const* argv[] = {
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"headless-browser",
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"--resources",
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resources.characters(),
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"--webdriver-ipc-path",
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socket_path.characters(),
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"about:blank",
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nullptr,
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};
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return launch_process("headless-browser"sv, argv);
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}
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ErrorOr<int> serenity_main(Main::Arguments arguments)
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{
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// Note: only creating this to get access to its static methods in HelperProcess
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QCoreApplication application(arguments.argc, arguments.argv);
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auto listen_address = "0.0.0.0"sv;
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int port = 8000;
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Core::ArgsParser args_parser;
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args_parser.add_option(listen_address, "IP address to listen on", "listen-address", 'l', "listen_address");
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args_parser.add_option(port, "Port to listen on", "port", 'p', "port");
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args_parser.parse(arguments);
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auto ipv4_address = IPv4Address::from_string(listen_address);
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if (!ipv4_address.has_value()) {
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warnln("Invalid listen address: {}", listen_address);
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return 1;
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}
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if ((u16)port != port) {
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warnln("Invalid port number: {}", port);
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return 1;
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}
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platform_init();
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auto webdriver_socket_path = DeprecatedString::formatted("{}/webdriver", TRY(Core::StandardPaths::runtime_directory()));
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TRY(Core::Directory::create(webdriver_socket_path, Core::Directory::CreateDirectories::Yes));
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Core::EventLoop loop;
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auto server = TRY(Core::TCPServer::try_create());
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// FIXME: Propagate errors
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server->on_ready_to_accept = [&] {
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auto maybe_client_socket = server->accept();
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if (maybe_client_socket.is_error()) {
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warnln("Failed to accept the client: {}", maybe_client_socket.error());
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return;
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}
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auto maybe_buffered_socket = Core::BufferedTCPSocket::create(maybe_client_socket.release_value());
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if (maybe_buffered_socket.is_error()) {
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warnln("Could not obtain a buffered socket for the client: {}", maybe_buffered_socket.error());
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return;
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}
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auto maybe_client = WebDriver::Client::try_create(maybe_buffered_socket.release_value(), { launch_browser, launch_headless_browser }, server);
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if (maybe_client.is_error()) {
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warnln("Could not create a WebDriver client: {}", maybe_client.error());
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return;
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}
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};
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TRY(server->listen(ipv4_address.value(), port, Core::TCPServer::AllowAddressReuse::Yes));
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outln("Listening on {}:{}", ipv4_address.value(), port);
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return loop.exec();
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}
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