ActionMiddleware.php

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<?php

namespace Elgg\Router\Middleware;

use Elgg\Exceptions\Http\ValidationException;
use Elgg\Http\ResponseBuilder;

class ActionMiddleware {

    public function __invoke(\Elgg\Request $request) {
        $route = $request->getRoute();
        list($prefix, $action) = explode(':', $route, 2);
        
        $hook_params = ['request' => $request];
        $result = $request->elgg()->hooks->trigger('action:validate', $action, $hook_params, true);
        if ($result === false) {
            throw new ValidationException(elgg_echo('ValidationException'));
        }

        // set the maximum execution time for actions
        $action_timeout = $request->elgg()->config->action_time_limit;
        if (isset($action_timeout)) {
            set_time_limit($action_timeout);
        }

        return null;
    }

}