jcs.org
Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * Copyright (c) 2021, Max Wipfli <mail@maxwipfli.ch>
4 * Copyright (c) 2022, Thomas Keppler <serenity@tkeppler.de>
5 *
6 * SPDX-License-Identifier: BSD-2-Clause
7 */
8
9#include <AK/String.h>
10#include <LibCore/ArgsParser.h>
11#include <LibCore/DeprecatedFile.h>
12#include <LibCore/EventLoop.h>
13#include <LibCore/MappedFile.h>
14#include <LibCore/System.h>
15#include <LibCore/TCPServer.h>
16#include <LibHTTP/HttpRequest.h>
17#include <LibMain/Main.h>
18#include <WebServer/Client.h>
19#include <WebServer/Configuration.h>
20#include <stdio.h>
21#include <unistd.h>
22
23ErrorOr<int> serenity_main(Main::Arguments arguments)
24{
25 static auto const default_listen_address = TRY("0.0.0.0"_string);
26 static auto const default_port = 8000;
27 static auto const default_document_root_path = TRY("/www"_string);
28
29 DeprecatedString listen_address = default_listen_address.to_deprecated_string();
30 int port = default_port;
31 DeprecatedString username;
32 DeprecatedString password;
33 DeprecatedString document_root_path = default_document_root_path.to_deprecated_string();
34
35 Core::ArgsParser args_parser;
36 args_parser.add_option(listen_address, "IP address to listen on", "listen-address", 'l', "listen_address");
37 args_parser.add_option(port, "Port to listen on", "port", 'p', "port");
38 args_parser.add_option(username, "HTTP basic authentication username", "user", 'U', "username");
39 args_parser.add_option(password, "HTTP basic authentication password", "pass", 'P', "password");
40 args_parser.add_positional_argument(document_root_path, "Path to serve the contents of", "path", Core::ArgsParser::Required::No);
41 args_parser.parse(arguments);
42
43 auto ipv4_address = IPv4Address::from_string(listen_address);
44 if (!ipv4_address.has_value()) {
45 warnln("Invalid listen address: {}", listen_address);
46 return 1;
47 }
48
49 if ((u16)port != port) {
50 warnln("Invalid port number: {}", port);
51 return 1;
52 }
53
54 if (username.is_empty() != password.is_empty()) {
55 warnln("Both username and password are required for HTTP basic authentication.");
56 return 1;
57 }
58
59 auto real_document_root_path = Core::DeprecatedFile::real_path_for(document_root_path);
60 if (!Core::DeprecatedFile::exists(real_document_root_path)) {
61 warnln("Root path does not exist: '{}'", document_root_path);
62 return 1;
63 }
64
65 TRY(Core::System::pledge("stdio accept rpath inet unix"));
66
67 Optional<HTTP::HttpRequest::BasicAuthenticationCredentials> credentials;
68 if (!username.is_empty() && !password.is_empty())
69 credentials = HTTP::HttpRequest::BasicAuthenticationCredentials { username, password };
70
71 WebServer::Configuration configuration(real_document_root_path, credentials);
72
73 Core::EventLoop loop;
74
75 auto server = TRY(Core::TCPServer::try_create());
76
77 server->on_ready_to_accept = [&] {
78 auto maybe_client_socket = server->accept();
79 if (maybe_client_socket.is_error()) {
80 warnln("Failed to accept the client: {}", maybe_client_socket.error());
81 return;
82 }
83
84 auto maybe_buffered_socket = Core::BufferedTCPSocket::create(maybe_client_socket.release_value());
85 if (maybe_buffered_socket.is_error()) {
86 warnln("Could not obtain a buffered socket for the client: {}", maybe_buffered_socket.error());
87 return;
88 }
89
90 // FIXME: Propagate errors
91 MUST(maybe_buffered_socket.value()->set_blocking(true));
92 auto client = WebServer::Client::construct(maybe_buffered_socket.release_value(), server);
93 client->start();
94 };
95
96 TRY(server->listen(ipv4_address.value(), port));
97
98 out("Listening on ");
99 out("\033]8;;http://{}:{}\033\\", ipv4_address.value(), port);
100 out("{}:{}", ipv4_address.value(), port);
101 outln("\033]8;;\033\\");
102
103 TRY(Core::System::unveil("/etc/timezone", "r"));
104 TRY(Core::System::unveil("/res/icons", "r"));
105 TRY(Core::System::unveil(real_document_root_path, "r"sv));
106 TRY(Core::System::unveil(nullptr, nullptr));
107
108 TRY(Core::System::pledge("stdio accept rpath"));
109 return loop.exec();
110}