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Serenity Operating System
1/*
2 * Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
3 * Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
4 * Copyright (c) 2022, the SerenityOS developers.
5 *
6 * SPDX-License-Identifier: BSD-2-Clause
7 */
8
9#include <Applications/Browser/Browser.h>
10#include <Applications/Browser/BrowserWindow.h>
11#include <Applications/Browser/CookieJar.h>
12#include <Applications/Browser/Database.h>
13#include <Applications/Browser/Tab.h>
14#include <Applications/Browser/WindowActions.h>
15#include <LibConfig/Client.h>
16#include <LibCore/ArgsParser.h>
17#include <LibCore/DeprecatedFile.h>
18#include <LibCore/FileWatcher.h>
19#include <LibCore/StandardPaths.h>
20#include <LibCore/System.h>
21#include <LibDesktop/Launcher.h>
22#include <LibGUI/Application.h>
23#include <LibGUI/BoxLayout.h>
24#include <LibGUI/Icon.h>
25#include <LibGUI/TabWidget.h>
26#include <LibMain/Main.h>
27#include <LibWeb/Loader/ResourceLoader.h>
28#include <LibWebView/OutOfProcessWebView.h>
29#include <LibWebView/RequestServerAdapter.h>
30#include <unistd.h>
31
32namespace Browser {
33
34DeprecatedString g_search_engine;
35DeprecatedString g_home_url;
36DeprecatedString g_new_tab_url;
37Vector<DeprecatedString> g_content_filters;
38bool g_content_filters_enabled { true };
39Vector<DeprecatedString> g_proxies;
40HashMap<DeprecatedString, size_t> g_proxy_mappings;
41IconBag g_icon_bag;
42DeprecatedString g_webdriver_content_ipc_path;
43
44}
45
46static ErrorOr<void> load_content_filters()
47{
48 auto file = TRY(Core::File::open(DeprecatedString::formatted("{}/BrowserContentFilters.txt", Core::StandardPaths::config_directory()), Core::File::OpenMode::Read));
49 auto ad_filter_list = TRY(Core::BufferedFile::create(move(file)));
50 auto buffer = TRY(ByteBuffer::create_uninitialized(4096));
51 while (TRY(ad_filter_list->can_read_line())) {
52 auto line = TRY(ad_filter_list->read_line(buffer));
53 if (!line.is_empty())
54 Browser::g_content_filters.append(line);
55 }
56
57 return {};
58}
59
60ErrorOr<int> serenity_main(Main::Arguments arguments)
61{
62 if (getuid() == 0) {
63 warnln("Refusing to run as root");
64 return 1;
65 }
66
67 TRY(Core::System::pledge("stdio recvfd sendfd unix fattr cpath rpath wpath proc exec"));
68
69 Vector<DeprecatedString> specified_urls;
70
71 Core::ArgsParser args_parser;
72 args_parser.add_positional_argument(specified_urls, "URLs to open", "url", Core::ArgsParser::Required::No);
73 args_parser.add_option(Browser::g_webdriver_content_ipc_path, "Path to WebDriver IPC for WebContent", "webdriver-content-path", 0, "path");
74
75 args_parser.parse(arguments);
76
77 auto app = TRY(GUI::Application::try_create(arguments));
78
79 Config::pledge_domain("Browser");
80 Config::monitor_domain("Browser");
81
82 // Connect to LaunchServer immediately and let it know that we won't ask for anything other than opening
83 // the user's downloads directory.
84 // FIXME: This should go away with a standalone download manager at some point.
85 TRY(Desktop::Launcher::add_allowed_url(URL::create_with_file_scheme(Core::StandardPaths::downloads_directory())));
86 TRY(Desktop::Launcher::seal_allowlist());
87
88 if (!Browser::g_webdriver_content_ipc_path.is_empty())
89 specified_urls.empend("about:blank");
90
91 TRY(Core::System::unveil("/tmp/session/%sid/portal/filesystemaccess", "rw"));
92 TRY(Core::System::unveil("/tmp/session/%sid/portal/filesystemaccess", "rw"));
93 TRY(Core::System::unveil("/tmp/session/%sid/portal/image", "rw"));
94 TRY(Core::System::unveil("/tmp/session/%sid/portal/webcontent", "rw"));
95 TRY(Core::System::unveil("/tmp/session/%sid/portal/request", "rw"));
96 TRY(Core::System::unveil("/tmp/session/%sid/portal/sql", "rw"));
97 TRY(Core::System::unveil("/home", "rwc"));
98 TRY(Core::System::unveil("/res", "r"));
99 TRY(Core::System::unveil("/etc/passwd", "r"));
100 TRY(Core::System::unveil("/etc/timezone", "r"));
101 TRY(Core::System::unveil("/bin/BrowserSettings", "x"));
102 TRY(Core::System::unveil("/bin/Browser", "x"));
103 TRY(Core::System::unveil(nullptr, nullptr));
104
105 Web::ResourceLoader::initialize(TRY(WebView::RequestServerAdapter::try_create()));
106
107 auto app_icon = GUI::Icon::default_icon("app-browser"sv);
108
109 Browser::g_home_url = Config::read_string("Browser"sv, "Preferences"sv, "Home"sv, "file:///res/html/misc/welcome.html"sv);
110 Browser::g_new_tab_url = Config::read_string("Browser"sv, "Preferences"sv, "NewTab"sv, "file:///res/html/misc/new-tab.html"sv);
111 Browser::g_search_engine = Config::read_string("Browser"sv, "Preferences"sv, "SearchEngine"sv, {});
112 Browser::g_content_filters_enabled = Config::read_bool("Browser"sv, "Preferences"sv, "EnableContentFilters"sv, true);
113
114 Browser::g_icon_bag = TRY(Browser::IconBag::try_create());
115
116 auto database = TRY(Browser::Database::create());
117 TRY(load_content_filters());
118
119 for (auto& group : Config::list_groups("Browser"sv)) {
120 if (!group.starts_with("Proxy:"sv))
121 continue;
122
123 for (auto& key : Config::list_keys("Browser"sv, group)) {
124 auto proxy_spec = group.substring_view(6);
125 auto existing_proxy = Browser::g_proxies.find(proxy_spec);
126 if (existing_proxy.is_end())
127 Browser::g_proxies.append(proxy_spec);
128
129 Browser::g_proxy_mappings.set(key, existing_proxy.index());
130 }
131 }
132
133 auto url_from_argument_string = [](DeprecatedString const& string) -> URL {
134 if (Core::DeprecatedFile::exists(string)) {
135 return URL::create_with_file_scheme(Core::DeprecatedFile::real_path_for(string));
136 }
137 return Browser::url_from_user_input(string);
138 };
139
140 URL first_url = Browser::url_from_user_input(Browser::g_home_url);
141 if (!specified_urls.is_empty())
142 first_url = url_from_argument_string(specified_urls.first());
143
144 auto cookie_jar = TRY(Browser::CookieJar::create(*database));
145 auto window = Browser::BrowserWindow::construct(cookie_jar, first_url);
146
147 auto content_filters_watcher = TRY(Core::FileWatcher::create());
148 content_filters_watcher->on_change = [&](Core::FileWatcherEvent const&) {
149 dbgln("Reloading content filters because config file changed");
150 auto error = load_content_filters();
151 if (error.is_error()) {
152 dbgln("Reloading content filters failed: {}", error.release_error());
153 return;
154 }
155 window->content_filters_changed();
156 };
157 TRY(content_filters_watcher->add_watch(DeprecatedString::formatted("{}/BrowserContentFilters.txt", Core::StandardPaths::config_directory()), Core::FileWatcherEvent::Type::ContentModified));
158
159 app->on_action_enter = [&](GUI::Action& action) {
160 if (auto* browser_window = dynamic_cast<Browser::BrowserWindow*>(app->active_window())) {
161 auto* tab = static_cast<Browser::Tab*>(browser_window->tab_widget().active_widget());
162 if (!tab)
163 return;
164 tab->action_entered(action);
165 }
166 };
167
168 app->on_action_leave = [&](auto& action) {
169 if (auto* browser_window = dynamic_cast<Browser::BrowserWindow*>(app->active_window())) {
170 auto* tab = static_cast<Browser::Tab*>(browser_window->tab_widget().active_widget());
171 if (!tab)
172 return;
173 tab->action_left(action);
174 }
175 };
176
177 for (size_t i = 1; i < specified_urls.size(); ++i)
178 window->create_new_tab(url_from_argument_string(specified_urls[i]), false);
179
180 window->show();
181
182 window->broadcast_window_position(window->position());
183 window->broadcast_window_size(window->size());
184
185 return app->exec();
186}