<?php
class Controller3rdPartyExtension extends Controller {
    public function index() {
        $curl = curl_init();

        curl_setopt($curl, CURLOPT_POST, true);
        curl_setopt($curl, CURLOPT_HEADER, false);
        curl_setopt($curl, CURLOPT_URL, 'https://www.opencart.com/index.php?route=extension/json/extensions');
        curl_setopt($curl, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1');
        curl_setopt($curl, CURLOPT_FRESH_CONNECT, true);
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($curl, CURLOPT_FORBID_REUSE, true);
        curl_setopt($curl, CURLOPT_TIMEOUT, 30);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
        curl_setopt($curl, CURLOPT_POSTFIELDS, []);

        $response = curl_exec($curl);

        curl_close($curl);

        $this->response->addHeader('Content-Type: application/json');
        $this->response->setOutput($response);
    }
}