serenity/Userland/Libraries/LibDesktop/Launcher.cpp

/*
 * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <AK/JsonObject.h>
#include <AK/URL.h>
#include <LaunchServer/LaunchClientEndpoint.h>
#include <LaunchServer/LaunchServerEndpoint.h>
#include <LibDesktop/Launcher.h>
#include <LibIPC/ServerConnection.h>
#include <stdlib.h>

namespace Desktop {

auto Launcher::Details::from_details_str(const String& details_str) -> NonnullRefPtr<Details>
{
    auto details = adopt_ref(*new Details);
    auto json = JsonValue::from_string(details_str);
    VERIFY(json.has_value());
    auto obj = json.value().as_object();
    details->executable = obj.get("executable").to_string();
    details->name = obj.get("name").to_string();
    if (auto type_value = obj.get_ptr("type")) {
        auto type_str = type_value->to_string();
        if (type_str == "app")
            details->launcher_type = LauncherType::Application;
        else if (type_str == "userpreferred")
            details->launcher_type = LauncherType::UserPreferred;
        else if (type_str == "userdefault")
            details->launcher_type = LauncherType::UserDefault;
    }
    return details;
}

class LaunchServerConnection : public IPC::ServerConnection<LaunchClientEndpoint, LaunchServerEndpoint>
    , public LaunchClientEndpoint {
    C_OBJECT(LaunchServerConnection)
public:
    virtual void handshake() override
    {
        greet();
    }

private:
    LaunchServerConnection()
        : IPC::ServerConnection<LaunchClientEndpoint, LaunchServerEndpoint>(*this, "/tmp/portal/launch")
    {
    }
    virtual void dummy() override { }
};

static LaunchServerConnection& connection()
{
    static auto connection = LaunchServerConnection::construct();
    return connection;
}

bool Launcher::add_allowed_url(const URL& url)
{
    auto response = connection().send_sync_but_allow_failure<Messages::LaunchServer::AddAllowedURL>(url);
    if (!response) {
        dbgln("Launcher::add_allowed_url: Failed");
        return false;
    }
    return true;
}

bool Launcher::add_allowed_handler_with_any_url(const String& handler)
{
    auto response = connection().send_sync_but_allow_failure<Messages::LaunchServer::AddAllowedHandlerWithAnyURL>(handler);
    if (!response) {
        dbgln("Launcher::add_allowed_handler_with_any_url: Failed");
        return false;
    }
    return true;
}

bool Launcher::add_allowed_handler_with_only_specific_urls(const String& handler, const Vector<URL>& urls)
{
    auto response = connection().send_sync_but_allow_failure<Messages::LaunchServer::AddAllowedHandlerWithOnlySpecificURLs>(handler, urls);
    if (!response) {
        dbgln("Launcher::add_allowed_handler_with_only_specific_urls: Failed");
        return false;
    }
    return true;
}

bool Launcher::seal_allowlist()
{
    auto response = connection().send_sync_but_allow_failure<Messages::LaunchServer::SealAllowlist>();
    if (!response) {
        dbgln("Launcher::seal_allowlist: Failed");
        return false;
    }
    return true;
}

bool Launcher::open(const URL& url, const String& handler_name)
{
    return connection().open_url(url, handler_name).response();
}

bool Launcher::open(const URL& url, const Details& details)
{
    VERIFY(details.launcher_type != LauncherType::Application); // Launcher should not be used to execute arbitrary applications
    return open(url, details.executable);
}

Vector<String> Launcher::get_handlers_for_url(const URL& url)
{
    return connection().get_handlers_for_url(url.to_string()).handlers();
}

auto Launcher::get_handlers_with_details_for_url(const URL& url) -> NonnullRefPtrVector<Details>
{
    auto details = connection().get_handlers_with_details_for_url(url.to_string()).handlers_details();
    NonnullRefPtrVector<Details> handlers_with_details;
    for (auto& value : details) {
        handlers_with_details.append(Details::from_details_str(value));
    }
    return handlers_with_details;
}

}