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<?php
/**
* webtrees: online genealogy
* Copyright (C) 2026 webtrees development team
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
declare(strict_types=1);
namespace Fisharebest\Webtrees\Http\RequestHandlers;
use Fisharebest\Webtrees\Auth;
use Fisharebest\Webtrees\Http\Exceptions\HttpAccessDeniedException;
use Fisharebest\Webtrees\Http\Exceptions\HttpNotFoundException;
use Fisharebest\Webtrees\Services\ModuleService;
use Fisharebest\Webtrees\Validator;
use InvalidArgumentException;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\ServerRequestInterface;
use Psr\Http\Server\RequestHandlerInterface;
use function is_string;
use function method_exists;
use function str_contains;
use function strtolower;
final class ModuleAction implements RequestHandlerInterface
{
public function __construct(
private readonly ModuleService $module_service,
) {
}
/**
* Perform an HTTP action for one of the modules.
*/
public function handle(ServerRequestInterface $request): ResponseInterface
{
$module_name = $request->getAttribute('module');
$action = $request->getAttribute('action');
$user = Validator::attributes($request)->user();
if (!is_string($module_name)) {
throw new InvalidArgumentException('Invalid module_name');
}
if (!is_string($action)) {
throw new InvalidArgumentException('Invalid action');
}
// Check that the module is enabled.
// The module itself will need to check any tree-level access,
// which may be different for each component (tab, menu, etc.) of the module.
$module = $this->module_service->findByName($module_name);
if ($module === null) {
throw new HttpNotFoundException('Module ' . e($module_name) . ' does not exist');
}
// We'll call a function such as Module::getFooBarAction()
$verb = strtolower($request->getMethod());
$method = $verb . $action . 'Action';
// Actions with "Admin" in the name are for administrators only.
if (str_contains(strtolower($action), 'admin') && !Auth::isAdmin($user)) {
throw new HttpAccessDeniedException('Admin only action');
}
if (!method_exists($module, $method)) {
throw new HttpNotFoundException('Method ' . e($method) . '() not found in ' . e($module_name));
}
return $module->$method($request);
}
}
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