$display_cat = $extensions[$attachment['extension']]['display_cat'];
if (($display_cat == ATTACHMENT_CATEGORY_IMAGE || $display_cat == ATTACHMENT_CATEGORY_THUMB) && !$user->optionget('viewimg')) {
$display_cat = ATTACHMENT_CATEGORY_NONE;
}
if ($display_cat == ATTACHMENT_CATEGORY_FLASH && !$user->optionget('viewflash')) {
$display_cat = ATTACHMENT_CATEGORY_NONE;
}
if ($thumbnail) {
$attachment['physical_filename'] = 'thumb_' . $attachment['physical_filename'];
} else {
if ($display_cat == ATTACHMENT_CATEGORY_NONE && !$attachment['is_orphan'] && !src_http_byte_range($attachment['filesize'])) {
// Update download count
src_increment_downloads($db, $attachment['attach_id']);
}
}
if ($display_cat == ATTACHMENT_CATEGORY_IMAGE && $mode === 'view' && strpos($attachment['mimetype'], 'image') === 0 && strpos(strtolower($user->browser), 'msie') !== false && !src_is_greater_ie_version($user->browser, 7)) {
wrap_img_in_html(append_sid($src_root_path . 'download/file.' . $phpEx, 'id=' . $attachment['attach_id']), $attachment['real_filename']);
file_gc();
} else {
// Determine the 'presenting'-method
if ($download_mode == PHYSICAL_LINK) {
// This presenting method should no longer be used
if (!@is_dir($src_root_path . $config['upload_path'])) {
send_status_line(500, 'Internal Server Error');
trigger_error($user->lang['PHYSICAL_DOWNLOAD_NOT_POSSIBLE']);
}
redirect($src_root_path . $config['upload_path'] . '/' . $attachment['physical_filename']);
file_gc();
} else {
send_file_to_browser($attachment, $config['upload_path'], $display_cat);
file_gc();
/**
* Check if the browser has the file already and set the appropriate headers-
* @returns false if a resend is in order.
*/
function set_modified_headers($stamp, $browser)
{
global $request;
// let's see if we have to send the file at all
$last_load = $request->header('Modified-Since') ? strtotime(trim($request->header('Modified-Since'))) : false;
if (strpos(strtolower($browser), 'msie 6.0') === false && !src_is_greater_ie_version($browser, 7)) {
if ($last_load !== false && $last_load >= $stamp) {
send_status_line(304, 'Not Modified');
// seems that we need those too ... browsers
header('Cache-Control: public');
header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 31536000) . ' GMT');
return true;
} else {
header('Last-Modified: ' . gmdate('D, d M Y H:i:s', $stamp) . ' GMT');
}
}
return false;
}
