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LibDesktop: Make allowlist APIs return ErrorOr<void>

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This makes it very smooth to use TRY() when setting up these lists,
as you can see in the rest of this commit. :^)
This commit is contained in:
Andreas Kling 2021-11-24 00:23:00 +01:00
parent 4a64bb80ea
commit b6f49924be
8 changed files with 34 additions and 76 deletions
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7
Userland/Applications/Browser/main.cpp
View file

@ -54,11 +54,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
// Connect to LaunchServer immediately and let it know that we won't ask for anything other than opening
// the user's downloads directory.
// FIXME: This should go away with a standalone download manager at some point.
if (!Desktop::Launcher::add_allowed_url(URL::create_with_file_protocol(Core::StandardPaths::downloads_directory()))
|| !Desktop::Launcher::seal_allowlist()) {
warnln("Failed to set up allowed launch URLs");
return 1;
}
TRY(Desktop::Launcher::add_allowed_url(URL::create_with_file_protocol(Core::StandardPaths::downloads_directory())));
TRY(Desktop::Launcher::seal_allowlist());
TRY(Core::System::unveil("/home", "rwc"));
TRY(Core::System::unveil("/res", "r"));

9
Userland/Applications/FontEditor/main.cpp
View file

@ -24,13 +24,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
auto app = TRY(GUI::Application::try_create(arguments));
if (!Desktop::Launcher::add_allowed_handler_with_only_specific_urls(
"/bin/Help",
{ URL::create_with_file_protocol("/usr/share/man/man1/FontEditor.md") })
|| !Desktop::Launcher::seal_allowlist()) {
warnln("Failed to set up allowed launch URLs");
return 1;
}
TRY(Desktop::Launcher::add_allowed_handler_with_only_specific_urls("/bin/Help", { URL::create_with_file_protocol("/usr/share/man/man1/FontEditor.md") }));
TRY(Desktop::Launcher::seal_allowlist());
TRY(Core::System::pledge("stdio recvfd sendfd thread rpath cpath wpath", nullptr));

18
Userland/Applications/ImageViewer/main.cpp
View file

@ -38,21 +38,9 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
auto app = TRY(GUI::Application::try_create(arguments));
if (!Desktop::Launcher::add_allowed_handler_with_any_url("/bin/ImageViewer")) {
warnln("Failed to set up allowed launch URLs");
return 1;
}
if (!Desktop::Launcher::add_allowed_handler_with_only_specific_urls(
"/bin/Help", { URL::create_with_file_protocol("/usr/share/man/man1/ImageViewer.md") })) {
warnln("Failed to set up allowed launch URLs");
return 1;
}
if (!Desktop::Launcher::seal_allowlist()) {
warnln("Failed to seal allowed launch URLs");
return 1;
}
TRY(Desktop::Launcher::add_allowed_handler_with_any_url("/bin/ImageViewer"));
TRY(Desktop::Launcher::add_allowed_handler_with_only_specific_urls("/bin/Help", { URL::create_with_file_protocol("/usr/share/man/man1/ImageViewer.md") }));
TRY(Desktop::Launcher::seal_allowlist());
auto app_icon = GUI::Icon::default_icon("filetype-image");

9
Userland/DevTools/Inspector/main.cpp
View file

@ -79,13 +79,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
}
}
if (!Desktop::Launcher::add_allowed_handler_with_only_specific_urls(
"/bin/Help",
{ URL::create_with_file_protocol("/usr/share/man/man1/Inspector.md") })
|| !Desktop::Launcher::seal_allowlist()) {
warnln("Failed to set up allowed launch URLs");
return 1;
}
TRY(Desktop::Launcher::add_allowed_handler_with_only_specific_urls("/bin/Help", { URL::create_with_file_protocol("/usr/share/man/man1/Inspector.md") }));
TRY(Desktop::Launcher::seal_allowlist());
window->set_title("Inspector");
window->resize(685, 500);

10
Userland/DevTools/Playground/main.cpp
View file

@ -66,13 +66,9 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
auto app = TRY(GUI::Application::try_create(arguments));
TRY(Core::System::pledge("stdio thread recvfd sendfd rpath cpath wpath unix", nullptr));
if (!Desktop::Launcher::add_allowed_handler_with_only_specific_urls(
"/bin/Help",
{ URL::create_with_file_protocol("/usr/share/man/man1/Playground.md") })
|| !Desktop::Launcher::seal_allowlist()) {
warnln("Failed to set up allowed launch URLs");
return 1;
}
TRY(Desktop::Launcher::add_allowed_handler_with_only_specific_urls("/bin/Help", { URL::create_with_file_protocol("/usr/share/man/man1/Playground.md") }));
TRY(Desktop::Launcher::seal_allowlist());
TRY(Core::System::pledge("stdio thread recvfd sendfd rpath cpath wpath", nullptr));

9
Userland/DevTools/Profiler/main.cpp
View file

@ -78,13 +78,8 @@ ErrorOr<int> serenity_main(Main::Arguments arguments)
auto window = TRY(GUI::Window::try_create());
if (!Desktop::Launcher::add_allowed_handler_with_only_specific_urls(
"/bin/Help",
{ URL::create_with_file_protocol("/usr/share/man/man1/Profiler.md") })
|| !Desktop::Launcher::seal_allowlist()) {
warnln("Failed to set up allowed launch URLs");
return 1;
}
TRY(Desktop::Launcher::add_allowed_handler_with_only_specific_urls("/bin/Help", { URL::create_with_file_protocol("/usr/share/man/man1/Profiler.md") }));
TRY(Desktop::Launcher::seal_allowlist());
window->set_title("Profiler");
window->set_icon(app_icon.bitmap_for_size(16));

40
Userland/Libraries/LibDesktop/Launcher.cpp
View file

@ -50,44 +50,36 @@ static LaunchServerConnection& connection()
return connection;
}
bool Launcher::add_allowed_url(const URL& url)
ErrorOr<void> Launcher::add_allowed_url(URL const& url)
{
auto response_or_error = connection().try_add_allowed_url(url);
if (response_or_error.is_error()) {
dbgln("Launcher::add_allowed_url: Failed");
return false;
}
return true;
if (response_or_error.is_error())
return Error::from_string_literal("Launcher::add_allowed_url: Failed"sv);
return {};
}
bool Launcher::add_allowed_handler_with_any_url(const String& handler)
ErrorOr<void> Launcher::add_allowed_handler_with_any_url(String const& handler)
{
auto response_or_error = connection().try_add_allowed_handler_with_any_url(handler);
if (response_or_error.is_error()) {
dbgln("Launcher::add_allowed_handler_with_any_url: Failed");
return false;
}
return true;
if (response_or_error.is_error())
return Error::from_string_literal("Launcher::add_allowed_handler_with_any_url: Failed"sv);
return {};
}
bool Launcher::add_allowed_handler_with_only_specific_urls(const String& handler, const Vector<URL>& urls)
ErrorOr<void> Launcher::add_allowed_handler_with_only_specific_urls(String const& handler, Vector<URL> const& urls)
{
auto response_or_error = connection().try_add_allowed_handler_with_only_specific_urls(handler, urls);
if (response_or_error.is_error()) {
dbgln("Launcher::add_allowed_handler_with_only_specific_urls: Failed");
return false;
}
return true;
if (response_or_error.is_error())
return Error::from_string_literal("Launcher::add_allowed_handler_with_only_specific_urls: Failed"sv);
return {};
}
bool Launcher::seal_allowlist()
ErrorOr<void> Launcher::seal_allowlist()
{
auto response_or_error = connection().try_seal_allowlist();
if (response_or_error.is_error()) {
dbgln("Launcher::seal_allowlist: Failed");
return false;
}
return true;
if (response_or_error.is_error())
return Error::from_string_literal("Launcher::seal_allowlist: Failed"sv);
return {};
}
bool Launcher::open(const URL& url, const String& handler_name)

8
Userland/Libraries/LibDesktop/Launcher.h
View file

@ -31,10 +31,10 @@ public:
static NonnullRefPtr<Details> from_details_str(const String&);
};
[[nodiscard]] static bool add_allowed_url(const URL&);
[[nodiscard]] static bool add_allowed_handler_with_any_url(const String& handler);
[[nodiscard]] static bool add_allowed_handler_with_only_specific_urls(const String& handler, const Vector<URL>&);
[[nodiscard]] static bool seal_allowlist();
static ErrorOr<void> add_allowed_url(URL const&);
static ErrorOr<void> add_allowed_handler_with_any_url(String const& handler);
static ErrorOr<void> add_allowed_handler_with_only_specific_urls(String const& handler, Vector<URL> const&);
static ErrorOr<void> seal_allowlist();
static bool open(const URL&, const String& handler_name = {});
static bool open(const URL&, const Details& details);
static Vector<String> get_handlers_for_url(const URL&);