Viewing file:  ImageCacheController.php (2.73 KB) -rw-rw-rw-
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<?php
namespace Webkul\Installer\Http\Controllers;
use Illuminate\Http\Response as IlluminateResponse;
use Illuminate\Support\Facades\Cache;
class ImageCacheController
{
/**
* Cache template
*
* @var string
*/
protected $template;
/**
* Logo
*
* @var string
*/
const KRAYIN_LOGO = 'https://updates.krayincrm.com/krayin.png';
/**
* Get HTTP response of template applied image file
*
* @param string $filename
* @return Illuminate\Http\Response
*/
public function getImage($filename)
{
try {
$content = Cache::remember('krayin-logo', 10080, function () {
return $this->getImageFromUrl(self::KRAYIN_LOGO);
});
} catch (\Exception $e) {
$content = '';
}
return $this->buildResponse($content);
}
/**
* Init from given URL
*
* @param string $url
* @return \Intervention\Image\Image
*/
public function getImageFromUrl($url)
{
$domain = config('app.url');
$options = [
'http' => [
'method' => 'GET',
'protocol_version' => 1.1, // force use HTTP 1.1 for service mesh environment with envoy
'header' => "Accept-language: en\r\n".
"Domain: $domain\r\n".
"User-Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36\r\n",
],
];
$context = stream_context_create($options);
if ($data = @file_get_contents($url, false, $context)) {
return $data;
}
throw new \Exception(
'Unable to init from given url ('.$url.').'
);
}
/**
* Builds HTTP response from given image data
*
* @param string $content
* @return Illuminate\Http\Response
*/
protected function buildResponse($content)
{
/**
* Define mime type
*/
$mime = finfo_buffer(finfo_open(FILEINFO_MIME_TYPE), $content);
/**
* Respond with 304 not modified if browser has the image cached
*/
$eTag = md5($content);
$notModified = isset($_SERVER['HTTP_IF_NONE_MATCH']) && $_SERVER['HTTP_IF_NONE_MATCH'] == $eTag;
$content = $notModified ? null : $content;
$statusCode = $notModified ? 304 : 200;
/**
* Return http response
*/
return new IlluminateResponse($content, $statusCode, [
'Content-Type' => $mime,
'Cache-Control' => 'max-age=10080, public',
'Content-Length' => strlen($content),
'Etag' => $eTag,
]);
}
}
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