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<?php
/**
* Matomo - free/libre analytics platform
*
* @link https://matomo.org
* @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*/
namespace Piwik\API;
use Piwik\Common;
use Piwik\Url;
class CORSHandler
{
/**
* @var array
*/
protected $domains;
public function __construct()
{
$this->domains = Url::getCorsHostsFromConfig();
}
public function handle()
{
if (empty($this->domains)) {
return;
}
Common::sendHeader('Vary: Origin');
// allow Piwik to serve data to all domains
if (in_array("*", $this->domains)) {
Common::sendHeader('Access-Control-Allow-Credentials: true');
if (!empty($_SERVER['HTTP_ORIGIN'])) {
Common::sendHeader('Access-Control-Allow-Origin: ' . $_SERVER['HTTP_ORIGIN']);
return;
}
Common::sendHeader('Access-Control-Allow-Origin: *');
return;
}
// specifically allow if it is one of the allowlisted CORS domains
if (!empty($_SERVER['HTTP_ORIGIN'])) {
$origin = $_SERVER['HTTP_ORIGIN'];
if (in_array($origin, $this->domains, true)) {
Common::sendHeader('Access-Control-Allow-Credentials: true');
Common::sendHeader('Access-Control-Allow-Origin: ' . $_SERVER['HTTP_ORIGIN']);
}
}
}
}
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