Problem forcing file download on Mozilla and Safari browsers

mpv

Hello,

I am using the code below to force a file download from a server. This code works well on IE. On Mozilla and Safari browsers, I get
the savefile dialog box, and then click on the save button. Everything seems to go fine but I always get either and empty file or an incomplete download. Would anyone have an idea of the problem?
I
n the exemple below I use a pdf file but the problem does not seem to be related to mime-types since I have tested with different type of files.

Thanks in advance

Markus

<?php

$file_name = "Dirtomyfile/file.pdf";
$file_size = filesize($file_name);
$fp = fopen($file_name, 'rb');

header("Content-Length:.$file_size");
header("Content-transfer-encoding: binary");
header("Content-Type: application/octet-stream");
header("Content-Type: application/pdf");
header("Content-Disposition: attachment; filename=\"" . $file_name ."\"");
header("Connection: close");

header("Cache-Control: no-cache, must-revalidate");
header("Pragma: no-cache");

$content = fread($fp, $file_size);
fclose($fp);
print $content;
exit;

Weedpacket

Dunno if it's a genuine problem or not, but I was wondering if that '.' in the Content-length header might have something to do with it?

mpv

Thanks for the reply but it does not seem to be the problem. Removing the period does not change the behavior.

Markus

Weedpacket

I haven't come across the problem, and I'm still not in a position to study it, so these are just more random suggestions based on what I generally get up to for these things: use [man]readfile[/man] instead of fopen and the rest; have only the one Content-Type header (though I guess that's from debugging); either drop the Connection:close header or check to ensure that the response going out is HTTP/1.1 and not HTTP/1.0 (or use a header to force it to the former).

mpv

This combination of headers finally worked on
IE, Mozilla and Safari. The period before the
file size was indeed a problem.

Thanks for your help

    

 header("Content-Length: $file_size");
 header("Content-transfer-encoding: binary");
 header("Content-Type: application/pdf");
 header("Content-Disposition: inline; filename=\"" . $file_name ."\"");
 header('Expires: 0');