whmcs-vpsmanager/lib/VPSManager.php

<?php
namespace VPSManager;
require_once __DIR__ . '/Config.php';

class VPSManager
{
    public function getParam($name)
    {
        return isset($this->params[$name]) ? $this->params[$name] : '';
    }

    public function apiCall($route)
    {
        if (!in_array($route, ['nodes', 'packs'], true)) {
            throw new \InvalidArgumentException('Ruta de API no permitida.');
        }
        $base = Config::url(Config::load(), 'vpsmanager_api_url', false);
        if (!function_exists('curl_init')) {
            throw new \RuntimeException('Transporte del módulo no disponible.');
        }
        $ch = curl_init($base . '/' . $route);
        curl_setopt_array($ch, [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_CONNECTTIMEOUT => 3,
            CURLOPT_TIMEOUT => 10,
            CURLOPT_SSL_VERIFYPEER => true,
            CURLOPT_SSL_VERIFYHOST => 2,
            CURLOPT_FOLLOWLOCATION => false,
        ]);
        try {
            $body = curl_exec($ch);
            $status = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        } finally {
            curl_close($ch);
        }
        if ($body === false || $status < 200 || $status >= 300) {
            throw new \RuntimeException('API del módulo no disponible.');
        }
        $data = json_decode($body, true);
        if (!is_array($data)) {
            throw new \RuntimeException('Respuesta de API no válida.');
        }
        return $data;
    }
}