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<?php
/* Icinga Web 2 | (c) 2013 Icinga Development Team | GPLv2+ */
namespace Icinga\Controllers;
use Icinga\Application\Icinga;
use Icinga\Web\Controller;
use Icinga\Web\FileCache;
/**
* Deliver static content to clients
*/
class StaticController extends Controller
{
/**
* Static routes don't require authentication
*
* @var bool
*/
protected $requiresAuthentication = false;
/**
* Disable layout rendering as this controller doesn't provide any html layouts
*/
public function init()
{
$this->_helper->viewRenderer->setNoRender(true);
$this->_helper->layout()->disableLayout();
}
/**
* Return an image from a module's public folder
*/
public function imgAction()
{
$imgRoot = Icinga::app()
->getModuleManager()
->getModule($this->getParam('module_name'))
->getBaseDir() . '/public/img/';
$file = $this->getParam('file');
$filePath = realpath($imgRoot . $file);
if ($filePath === false || substr($filePath, 0, strlen($imgRoot)) !== $imgRoot) {
$this->httpNotFound('%s does not exist', $file);
}
if (preg_match('/\.([a-z]+)$/i', $file, $m)) {
$extension = $m[1];
if ($extension === 'svg') {
$extension = 'svg+xml';
}
} else {
$extension = 'fixme';
}
$s = stat($filePath);
$eTag = sprintf('%x-%x-%x', $s['ino'], $s['size'], (float) str_pad((string) $s['mtime'], 16, '0'));
$this->getResponse()->setHeader(
'Cache-Control',
'public, max-age=1814400, stale-while-revalidate=604800',
true
);
if ($this->getRequest()->getServer('HTTP_IF_NONE_MATCH') === $eTag) {
$this->getResponse()
->setHttpResponseCode(304);
} else {
$this->getResponse()
->setHeader('ETag', $eTag)
->setHeader('Content-Type', 'image/' . $extension, true)
->setHeader('Last-Modified', gmdate('D, d M Y H:i:s', $s['mtime']) . ' GMT');
readfile($filePath);
}
}
}
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