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@@ -29,7 +29,7 @@ if (!defined('SMF'))
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*/
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function Download()
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{
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- global
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+ global $modSettings, $smcFunc, $context;
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// We need a valid ID
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if(empty($_GET['attach']) || (string)$_GET['attach'] != (string)(int)$_GET['attach'])
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@@ -88,13 +88,64 @@ if (!defined('SMF'))
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$file = $smcFunc['db_fetch_assoc']($result);
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+ // Update the download counter (unless it's a thumbnail).
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+ if ($file['attachment_type'] != 3)
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+ $smcFunc['db_query']('attach_download_increase', '
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+ UPDATE LOW_PRIORITY {db_prefix}attachments
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+ SET downloads = downloads + 1
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+ WHERE id_attach = {int:id_attach}',
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+ array(
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+ 'id_attach' => $id_attach,
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+ )
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+ );
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+
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require($sourcedir. '/Subs.php');
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// Get the file info
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$file['filename'] = getAttachmentFilename($file['real_filename'], $id_attach, $file['id_folder'], false, $file['file_hash']);
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$file['etag'] = '"'. function_exists('md5_file') ? md5_file($file['filename']) : md5(file_get_contents($file['filename'])). '"';
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- // Cache it... (Why do I randomly select a length at which to expire? Search around for RIP_JITTER :P)
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+ // Cache it... (Why do I randomly select a length at which to expire? Search around for RIP_JITTER :P)
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cache_put_data('avatar_lookup_id-'. $id_attach, $file, mt_rand(850, 900));
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}
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+
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+ // No point in a nicer message, because this is supposed to be an attachment anyway...
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+ if (!file_exists($file['filename']))
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+ {
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+ header('HTTP/1.0 404 File Not Found');
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+
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+ // We need to die like this *before* we send any anti-caching headers as below.
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+ die('404 File Not Found');
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+ }
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+
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+ // If it hasn't been modified since the last time this attachement was retrieved, there's no need to display it again.
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+ if (!empty($_SERVER['HTTP_IF_MODIFIED_SINCE']))
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+ {
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+ list($modified_since) = explode(';', $_SERVER['HTTP_IF_MODIFIED_SINCE']);
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+ if (strtotime($modified_since) >= filemtime($file['filename']))
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+ {
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+ ob_end_clean();
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+
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+ // Answer the question - no, it hasn't been modified ;).
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+ header('HTTP/1.1 304 Not Modified');
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+ exit;
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+ }
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+ }
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+
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+ // Send the avatar headers.
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+ header('Expires: '. gmdate('D, d M Y H:i:s', time() + 31536000). ' GMT'); # Expire in a year. Hehe.
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+ header('Last-Modified: '. gmdate('D, d M Y H:i:s', filemtime($file['filename'])). ' GMT');
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+ header('Accept-Ranges: bytes');
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+ header('Connection: close');
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+ header('ETag: '. $file['etag']);
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+ header('Content-Type: '. $file['mime_type']);
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+
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+ // Output the file
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+ $fp = fopen($file['filename'], 'rb');
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+
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+ while(!feof($fp))
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+ echo fread($fp, 8192);
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+
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+ fclose($fp);
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+ exit;
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}
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Suki