Download issue using PHP script

frt

Hello,

I made a script for downloading files.
Let's say, if you want to download a file with .exe extension, a script will be requested, script.php:

$file = 'full/path/to/file.exe";
function dwfile($file)
{
	if(isset($_SERVER['HTTP_USER_AGENT']) && preg_match("/MSIE/", $_SERVER['HTTP_USER_AGENT']))
	{
		// IE Bug in download name workaround
		ini_set( 'zlib.output_compression','Off' );
	} 
	header ('Content-type: ' . mime_content_type($file));
	header ('Content-Disposition: attachment; filename="'.basename($file).'"');
	header ('Expires: '.gmdate("D, d M Y H:i:s", mktime(date("H")+2, date("i"), date("s"), date("m"), date("d"), date("Y"))).' GMT');
	header ('Accept-Ranges: bytes');
	header ('Cache-control: no-cache, must-revalidate');
	header ('Pragma: private');

$size = filesize($file);
if(isset($_SERVER['HTTP_RANGE'])) 
{
	list($a, $range)=explode("=",$_SERVER['HTTP_RANGE']);
	//if yes, download missing part
	str_replace($range, "-", $range);
	$size2=$size-1;
	$new_length=$size2-$range;
	header("HTTP/1.1 206 Partial Content");
	header("Content-Length: $new_length");
	header("Content-Range: bytes $range$size2/$size");
} 
else 
{
	$size2=$size-1;
	header("Content-Range: bytes 0-$size2/$size");
	header("Content-Length: ".$size);
}

if ($file = fopen($file, 'rb')) 
{
	while(!feof($file) and (connection_status()==0)) 
	{
		print(fread($file, 1024*8));
		flush();
	}
	$status = (connection_status()==0);
	fclose($file);
}
return($status);
}

dwfile($file);

I have the following problem:
the file it's starting to download, but if I want to use the browser window to navigate away from that page, I can't. Until the file is not downloaded, the browser window it's stucked.

I tried this on 3 different environments:
W2k3 - Apache/2.0.55 (Win32) PHP/5.0.5
Win2000Server - Apache/2.0.54 (Win32) mod_ssl/2.0.54 OpenSSL/0.9.7g PHP/5.0.4
Linux Fedora - Apache/2.0.52, PHP 4.3.10

It's the same problem.

Also, I tested it on Linux Environment, Apache 1.3.31, PHP 4.3.8, and here it's working!

So, I suppose there is a problem with Apache 2.x. I think it's all about multithreaded mode from Apache 2.x.

Does anyone has a solution for this issue?
Thank you!

frt

Nobody can help with this issue?

frt

I tried using readfile function, but I got the same result.

byronb

I have tried a few things with your code but was unable to find a solution. I will carry on looking for you mate

sabrinawise1

First off for your problem, you may try just adding a Javascript wait animation, THis way people know the browser is not stuck when downloading.

Other issues you may have is to set your htaccess file to not time out running scripts. There is also a max download I think, maybe it's only max upload.

MOD EDIT: Some text removed to comply with JupiterWeb's AUP & Forum Rules.

pibraady

Not much on my mind. Basically not much exciting going on today. Eh. Today was a complete loss. I've pretty much been doing nothing. Not much noteworthy happening to speak of. Not much on my mind recently. I haven't gotten anything done for a while. Not much on my mind worth mentioning. Shrug. That's how it is. I feel like a fog. I can't be bothered with anything these days. Pretty much nothing seems worth thinking about, but oh well. I guess it doesn't bother me. More or less not much noteworthy happening today. Maybe tomorrow. Not much on my mind worth mentioning. I haven't been up to much lately, but I guess it doesn't bother me. Pretty much not much exciting going on. Pfft.

jasicajhon

frt;10700739 wrote:
Hello,

I made a script for downloading files.
Let's say, if you want to download a file with .exe extension, a script will be requested, script.php:
$file = 'full/path/to/file.exe";
function dwfile($file)
{
	if(isset($_SERVER['HTTP_USER_AGENT']) && preg_match("/MSIE/", $_SERVER['HTTP_USER_AGENT']))
	{
		// IE Bug in download name workaround
		ini_set( 'zlib.output_compression','Off' );
	} 
	header ('Content-type: ' . mime_content_type($file));
	header ('Content-Disposition: attachment; filename="'.basename($file).'"');
	header ('Expires: '.gmdate("D, d M Y H:i:s", mktime(date("H")+2, date("i"), date("s"), date("m"), date("d"), date("Y"))).' GMT');
	header ('Accept-Ranges: bytes');
	header ('Cache-control: no-cache, must-revalidate');
	header ('Pragma: private');

$size = filesize($file);
if(isset($_SERVER['HTTP_RANGE'])) 
{
	list($a, $range)=explode("=",$_SERVER['HTTP_RANGE']);
	//if yes, download missing part
	str_replace($range, "-", $range);
	$size2=$size-1;
	$new_length=$size2-$range;
	header("HTTP/1.1 206 Partial Content");
	header("Content-Length: $new_length");
	header("Content-Range: bytes $range$size2/$size");
} 
else 
{
	$size2=$size-1;
	header("Content-Range: bytes 0-$size2/$size");
	header("Content-Length: ".$size);
}

if ($file = fopen($file, 'rb')) 
{
	while(!feof($file) and (connection_status()==0)) 
	{
		print(fread($file, 1024*8));
		flush();
	}
	$status = (connection_status()==0);
	fclose($file);
}
return($status);
}

dwfile($file);
I have the following problem:
the file it's starting to download, but if I want to use the browser window to navigate away from that page, I can't. Until the file is not downloaded, the browser window it's stucked.

I tried this on 3 different environments:
W2k3 - Apache/2.0.55 (Win32) PHP/5.0.5
Win2000Server - Apache/2.0.54 (Win32) mod_ssl/2.0.54 OpenSSL/0.9.7g PHP/5.0.4
Linux Fedora - Apache/2.0.52, PHP 4.3.10

It's the same problem.

Also, I tested it on Linux Environment, Apache 1.3.31, PHP 4.3.8, and here it's working!

So, I suppose there is a problem with Apache 2.x. I think it's all about multithreaded mode from Apache 2.x.

Does anyone has a solution for this issue?
Thank you!

Yes! I tried using readfile function, but I got the same result.

jasicajhon

annaharris

I have tried out using readfile function, but I got the same issue. Can anyone share the solution for this problem?

jasicajhon

jasicajhon;11026265 wrote:
Yes! I tried using readfile function, but I got the same result.

jasicajhon

HRT clinics // genemedics

Angelina4_

if(/ My authorization here /) {
$path = "/uploads/";
$name = $row[0]; //This is a MySQL reference with the filename
$fullname = $path . $name; //Create filename
$fd = fopen($fullname, "rb");
if ($fd) {
$fsize = filesize($fullname);
$path_parts = pathinfo($fullname);
$ext = strtolower($path_parts["extension"]);
switch ($ext) {
case "pdf":
header("Content-type: application/pdf");
break;
case "zip":
header("Content-type: application/zip");
break;
default:
header("Content-type: application/octet-stream");
break;
}
header("Content-Disposition: attachment; filename=\"".$path_parts["basename"]."\"");
header("Content-length: $fsize");
header("Cache-control: private"); //use this to open files directly
while(!feof($fd)) {
$buffer = fread($fd, 1(10241024));
echo $buffer;
ob_flush();
flush(); //These two flush commands seem to have helped with performance
}
}
else {
echo "Error opening file";
}
fclose($fd);