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PR for #2701

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meuhland
meuhland committed Jan 22, 2019
1 parent 3a6ae85 commit 244f36b353dc9f97e05568c0b0b65afa10c0c88d
Showing with 83 additions and 1 deletion.
  1. +83 −1 main/inc/lib/document.lib.php
@@ -276,7 +276,79 @@ public static function file_get_mime_type($filename)
return 'application/octet-stream';
}
/**
* This function smart streams a file to the client.
*
* @param string $full_file_name
* @param string $filename
* @param string $contentType
*
* @return false if file doesn't exist, true if stream succeeded
*/
public static function smartReadFile($full_file_name, $filename, $contentType = 'application/octet-stream')
{
if (!file_exists($full_file_name))
{
header ("HTTP/1.1 404 Not Found");
return;
}
$size = filesize($full_file_name);
$time = date('r', filemtime($full_file_name));
$fm = @fopen($full_file_name, 'rb');
if (!$fm)
{
header ("HTTP/1.1 505 Internal server error");
return;
}
$begin = 0;
$end = $size - 1;
if (isset($_SERVER['HTTP_RANGE']))
{
if (preg_match('/bytes=\h*(\d+)-(\d*)[\D.*]?/i', $_SERVER['HTTP_RANGE'], $matches))
{
$begin = intval($matches[1]);
if (!empty($matches[2]))
{
$end = intval($matches[2]);
}
}
}
if (isset($_SERVER['HTTP_RANGE']))
{
header('HTTP/1.1 206 Partial Content');
}
else
{
header('HTTP/1.1 200 OK');
}
header("Content-Type: $contentType");
header('Cache-Control: public, must-revalidate, max-age=0');
header('Pragma: no-cache');
header('Accept-Ranges: bytes');
header('Content-Length:' . (($end - $begin) + 1));
if (isset($_SERVER['HTTP_RANGE']))
{
header("Content-Range: bytes $begin-$end/$size");
}
header("Content-Disposition: inline; filename=$filename");
header("Content-Transfer-Encoding: binary");
header("Last-Modified: $time");
$cur = $begin;
fseek($fm, $begin, 0);
while(!feof($fm) && $cur <= $end && (connection_status() == 0))
{
print fread($fm, min(1024 * 16, ($end - $cur) + 1));
$cur += 1024 * 16;
}
}
/**
* This function streams a file to the client.
*
@@ -373,6 +445,16 @@ public static function file_send_for_download(
}
}
break;
case 'video/mp4':
case 'audio/mpeg':
case 'audio/mp4':
case 'audio/ogg':
case 'audio/webm':
case 'audio/wav':
case 'video/ogg':
case 'video/webm':
self::smartReadFile($full_file_name,$filename,$contentType);
break;
case 'application/vnd.dwg':
case 'application/vnd.dwf':
header('Content-type: application/octet-stream');

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