63 lines
1.9 KiB
PHP
63 lines
1.9 KiB
PHP
<?php
|
|
ini_set('display_errors', 1);
|
|
ini_set('display_startup_errors', 1);
|
|
error_reporting(E_ALL);
|
|
|
|
|
|
/***
|
|
*
|
|
* Загрузка файла частями
|
|
*
|
|
*/
|
|
|
|
public function downloadBigFile($filename){
|
|
|
|
|
|
$mimetype="application/x-rar-compressed";
|
|
if (!file_exists($filename))
|
|
die('Файл не найден:'.$filename);
|
|
|
|
$from=$to=0;
|
|
$cr=NULL;
|
|
|
|
if (isset($_SERVER['HTTP_RANGE'])) {
|
|
$range=substr($_SERVER['HTTP_RANGE'], strpos($_SERVER['HTTP_RANGE'], '=')+1);
|
|
$from=strtok($range, '-');$to=strtok('/');
|
|
|
|
if ($to>0) $to++;
|
|
if ($to) $to-=$from;header('HTTP/1.1 206 Partial Content');
|
|
$cr='Content-Range: bytes ' . $from . '-' . (($to)?($to . '/' . $to+1):filesize($filename));
|
|
} else
|
|
header('HTTP/1.1 200 Ok');
|
|
|
|
$etag=md5($filename);
|
|
$etag=substr($etag, 0, 8) . '-' . substr($etag, 8, 7) . '-' . substr($etag, 15, 8);
|
|
header('ETag: "' . $etag . '"');
|
|
header('Accept-Ranges: bytes');
|
|
header('Content-Length: ' . (filesize($filename)-$to+$from));
|
|
if ($cr)
|
|
header($cr);
|
|
|
|
header('Connection: close');
|
|
header('Content-Type: ' . $mimetype);
|
|
header('Last-Modified: ' . gmdate('r', filemtime($filename)));
|
|
$f=fopen($filename, 'r');
|
|
header('Content-Disposition: attachment; filename="' . basename($filename) . '";');
|
|
if ($from)
|
|
fseek($f, $from, SEEK_SET);
|
|
if (!isset($to) or empty($to)) {
|
|
$size=filesize($filename)-$from;
|
|
} else {
|
|
$size=$to;
|
|
}
|
|
|
|
$downloaded = 0;
|
|
while( (!feof($f)) && (connection_status()==0) && ($downloaded < $size) ) {
|
|
$block = min(1024*8, $size - $downloaded);
|
|
print(fread($f, $block));
|
|
$downloaded += $block;
|
|
flush();
|
|
}
|
|
|
|
fclose($f);
|
|
} |