function index()
{
// clean file
$file = str_replace(array("\\", "/"), DIRECTORY_SEPARATOR, urldecode($_GET['file']));
// print_r($_GET);
// type
$type = strip_tags($_GET['type']);
// get type
switch ($type) {
case 'download':
// buffer
@ob_end_clean();
// download
mgm_force_download($file);
// flush
@ob_end_flush();
exit;
break;
case 'upload':
echo 'upload';
exit;
break;
}
}
/**
* Magic Members stream download - with restart functionlity
*
* @package MagicMembers
* @since 2.5
* @desc force download with restart functionlity, modified for FDM support, issue #876
* @param string filepath
* @return none
*/
function mgm_stream_download($filepath)
{
global $mgm_mimes;
// check connection
if (connection_status() != 0) {
return false;
}
// see if the file exists
if (!is_file($filepath)) {
die("<b>404 File not found!</b>");
}
// size
$size = @filesize($filepath);
$fileinfo = @pathinfo($filepath);
// error
if ($size == 0) {
die('Empty file! download aborted');
}
// resume flag
$is_resume = true;
$range = '';
// check if http_range is sent by browser (or download manager)
if ($is_resume && isset($_SERVER['HTTP_RANGE'])) {
// split
list($size_unit, $range_orig) = explode('=', $_SERVER['HTTP_RANGE'], 2);
// check
if ($size_unit == 'bytes') {
// multiple ranges could be specified at the same time, but for simplicity only serve the first range
// http://tools.ietf.org/id/draft-ietf-http-range-retrieval-00.txt
list($range, $extra_ranges) = explode(',', $range_orig, 2);
}
}
// backward compatibility, when ranges empty, iss #1772
if (empty($range)) {
mgm_force_download($filepath);
exit;
}
// ----- calculation for ranges
// workaround for IE filename bug with multiple periods / multiple dots in filename
// that adds square brackets to filename - eg. setup.abc.exe becomes setup[1].abc.exe
// set filename
$filename = strstr(mgm_server_var('HTTP_USER_AGENT'), "MSIE") ? preg_replace('/\\./', '%2e', $fileinfo['basename'], substr_count($fileinfo['basename'], '.') - 1) : $fileinfo['basename'];
// extension
$file_extension = strtolower($fileinfo['extension']);
// default mime if we can't find it
if (isset($mgm_mimes[$file_extension])) {
// from mimes
$content_type = is_array($mgm_mimes[$file_extension]) ? $mgm_mimes[$file_extension][0] : $mgm_mimes[$file_extension];
} else {
// default
$content_type = 'application/force-download';
//'application/octet-stream';
}
//figure out download piece from range (if set)
if (strpos($range, '-') !== false) {
list($seek_start, $seek_end) = explode('-', $range, 2);
} else {
$seek_start = 0;
$seek_end = '';
}
// set start and end based on range (if set), else set defaults
// also check for invalid ranges.
$seek_end = empty($seek_end) ? $size - 1 : min(abs(intval($seek_end)), $size - 1);
$seek_start = empty($seek_start) || $seek_end < abs(intval($seek_start)) ? 0 : max(abs(intval($seek_start)), 0);
//issue #1375
@session_write_close();
// kill quotes
if (function_exists('set_magic_quotes_runtime')) {
@set_magic_quotes_runtime(0);
}
//add headers if resumable
if ($is_resume) {
// Only send partial content header if downloading a piece of the file (IE workaround)
if ($seek_start > 0 || $seek_end < $size - 1) {
// header
@header('HTTP/1.1 206 Partial Content');
// log
// mgm_log("Partial Content {$seek_start}-{$seek_end}/{$size}", __FUNCTION__ . '_size_range');
}
// others
@header('Accept-Ranges: bytes');
@header('Content-Range: bytes ' . $seek_start . '-' . $seek_end . '/' . $size);
}
//headers for IE Bugs (is this necessary?)
//header("Cache-Control: cache, must-revalidate");
//header("Pragma: public");
@header('Content-Type: ' . $content_type);
@header('Content-Disposition: attachment; filename="' . $filename . '"');
@header('Content-Length: ' . ($seek_end - $seek_start + 1));
//open the file
$fp = @fopen($filepath, 'rb');
// seek to start of missing part
@fseek($fp, $seek_start);
//mgm_log(memory_get_peak_usage(true)."before download", __FUNCTION__);
//start buffered download
while (!feof($fp)) {
//reset time limit for big files
@set_time_limit(0);
@ini_set('memory_limit', 1073741824);
// 1024M
print @fread($fp, 1024 * 8);
@ob_flush();
@flush();
// sleep
@usleep(1000);
// flush
@ob_end_flush();
//keep this as there were some memory related issues(#545)
}
// close
@fclose($fp);
//mgm_log(memory_get_peak_usage(true)."after download", __FUNCTION__);
exit;
// end
return connection_status() == 0 && !connection_aborted();
}
