jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2022, Tim Flynn <trflynn89@serenityos.org>
3 *
4 * SPDX-License-Identifier: BSD-2-Clause
5 */
6
7#define AK_DONT_REPLACE_STD
8
9#include "../HelperProcess.h"
10#include "../Utilities.h"
11#include <AK/Platform.h>
12#include <LibCore/ArgsParser.h>
13#include <LibCore/Directory.h>
14#include <LibCore/EventLoop.h>
15#include <LibCore/StandardPaths.h>
16#include <LibCore/System.h>
17#include <LibCore/TCPServer.h>
18#include <LibMain/Main.h>
19#include <QCoreApplication>
20#include <WebDriver/Client.h>
21
22#if defined(AK_OS_MACOS)
23# include <crt_externs.h>
24#endif
25
26extern DeprecatedString s_serenity_resource_root;
27
28static char** environment()
29{
30#if defined(AK_OS_MACOS)
31 return *_NSGetEnviron();
32#else
33 extern char** environ;
34 return environ;
35#endif
36}
37
38static ErrorOr<pid_t> launch_process(StringView application, char const* argv[])
39{
40 auto paths = TRY(get_paths_for_helper_process(application));
41
42 ErrorOr<pid_t> result = -1;
43 for (auto const& path : paths) {
44 auto path_view = path.bytes_as_string_view();
45 argv[0] = path_view.characters_without_null_termination();
46 result = Core::System::posix_spawn(path_view, nullptr, nullptr, const_cast<char**>(argv), environment());
47 if (!result.is_error())
48 break;
49 }
50 return result;
51}
52
53static ErrorOr<pid_t> launch_browser(DeprecatedString const& socket_path)
54{
55 char const* argv[] = {
56 "ladybird",
57 "--webdriver-content-path",
58 socket_path.characters(),
59 nullptr,
60 };
61
62 return launch_process("ladybird"sv, argv);
63}
64
65static ErrorOr<pid_t> launch_headless_browser(DeprecatedString const& socket_path)
66{
67 auto resources = DeprecatedString::formatted("{}/res", s_serenity_resource_root);
68
69 char const* argv[] = {
70 "headless-browser",
71 "--resources",
72 resources.characters(),
73 "--webdriver-ipc-path",
74 socket_path.characters(),
75 "about:blank",
76 nullptr,
77 };
78
79 return launch_process("headless-browser"sv, argv);
80}
81
82ErrorOr<int> serenity_main(Main::Arguments arguments)
83{
84 // Note: only creating this to get access to its static methods in HelperProcess
85 QCoreApplication application(arguments.argc, arguments.argv);
86
87 auto listen_address = "0.0.0.0"sv;
88 int port = 8000;
89
90 Core::ArgsParser args_parser;
91 args_parser.add_option(listen_address, "IP address to listen on", "listen-address", 'l', "listen_address");
92 args_parser.add_option(port, "Port to listen on", "port", 'p', "port");
93 args_parser.parse(arguments);
94
95 auto ipv4_address = IPv4Address::from_string(listen_address);
96 if (!ipv4_address.has_value()) {
97 warnln("Invalid listen address: {}", listen_address);
98 return 1;
99 }
100
101 if ((u16)port != port) {
102 warnln("Invalid port number: {}", port);
103 return 1;
104 }
105
106 platform_init();
107
108 auto webdriver_socket_path = DeprecatedString::formatted("{}/webdriver", TRY(Core::StandardPaths::runtime_directory()));
109 TRY(Core::Directory::create(webdriver_socket_path, Core::Directory::CreateDirectories::Yes));
110
111 Core::EventLoop loop;
112 auto server = TRY(Core::TCPServer::try_create());
113
114 // FIXME: Propagate errors
115 server->on_ready_to_accept = [&] {
116 auto maybe_client_socket = server->accept();
117 if (maybe_client_socket.is_error()) {
118 warnln("Failed to accept the client: {}", maybe_client_socket.error());
119 return;
120 }
121
122 auto maybe_buffered_socket = Core::BufferedTCPSocket::create(maybe_client_socket.release_value());
123 if (maybe_buffered_socket.is_error()) {
124 warnln("Could not obtain a buffered socket for the client: {}", maybe_buffered_socket.error());
125 return;
126 }
127
128 auto maybe_client = WebDriver::Client::try_create(maybe_buffered_socket.release_value(), { launch_browser, launch_headless_browser }, server);
129 if (maybe_client.is_error()) {
130 warnln("Could not create a WebDriver client: {}", maybe_client.error());
131 return;
132 }
133 };
134
135 TRY(server->listen(ipv4_address.value(), port, Core::TCPServer::AllowAddressReuse::Yes));
136 outln("Listening on {}:{}", ipv4_address.value(), port);
137
138 return loop.exec();
139}