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<?php
/**
* Elgg file thumbnail
*
* @package ElggFile
*/
// Get engine
require_once(dirname(dirname(dirname(__FILE__))) . "/engine/start.php");
// Get file GUID
$file_guid = (int) get_input('file_guid', 0);
// Get file thumbnail size
$size = get_input('size', 'small');
$file = get_entity($file_guid);
if (!$file || $file->getSubtype() != "file") {
exit;
}
$simpletype = $file->simpletype;
if ($simpletype == "image") {
// Get file thumbnail
switch ($size) {
case "small":
$thumbfile = $file->thumbnail;
break;
case "medium":
$thumbfile = $file->smallthumb;
break;
case "large":
default:
$thumbfile = $file->largethumb;
break;
}
// Grab the file
if ($thumbfile && !empty($thumbfile)) {
$readfile = new ElggFile();
$readfile->owner_guid = $file->owner_guid;
$readfile->setFilename($thumbfile);
$mime = $file->getMimeType();
$contents = $readfile->grabFile();
// caching images for 10 days
header("Content-type: $mime");
header('Expires: ' . gmdate('D, d M Y H:i:s \G\M\T', strtotime("+10 days")), true);
header("Pragma: public", true);
header("Cache-Control: public", true);
header("Content-Length: " . strlen($contents));
echo $contents;
exit;
}
}
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