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<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
// Modified the original downloader to print the file to output instead
// of reading it into a variable, to prevent running up our memory limit
function force_download($path, $filename, $alt_name='')
{
if (!is_file($path.'/'.$filename))
{
show_404();
}
// Try to determine if the filename includes a file extension.
// We need it in order to set the MIME type
if (FALSE === strpos($filename, '.'))
{
show_404();
}
// Grab the file extension
$x = explode('.', $filename);
$extension = end($x);
// Load the mime types
@include(APPPATH.'config/mimes'.EXT);
// Set a default mime if we can't find it
if ( ! isset($mimes[$extension]))
{
$mime = 'application/octet-stream';
}
else
{
$mime = (is_array($mimes[$extension])) ? $mimes[$extension][0] : $mimes[$extension];
}
// send the file as a different name to the user
if($alt_name) $final_name = $alt_name;
else $final_name = $filename;
// Generate the server headers
if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE"))
{
header('Content-Type: "'.$mime.'"');
header('Content-Disposition: attachment; filename="'.$final_name.'"');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header("Content-Transfer-Encoding: binary");
header('Pragma: public');
header("Content-Length: ".filesize($path.$filename));
}
else
{
header('Content-Type: "'.$mime.'"');
header('Content-Disposition: attachment; filename="'.$final_name.'"');
header("Content-Transfer-Encoding: binary");
header('Expires: 0');
header('Pragma: no-cache');
header("Content-Length: ".filesize($path.'/'.$filename));
}
$fp=fopen($path.'/'.$filename,"r");
print fread($fp,filesize($path.'/'.$filename));
fclose($fp);
exit();
}
// Send any content to the user as a file
function force_download_content($filename, $content)
{
// Grab the file extension
$x = explode('.', $filename);
$extension = end($x);
// Load the mime types
@include(APPPATH.'config/mimes'.EXT);
// Set a default mime if we can't find it
if ( ! isset($mimes[$extension]))
{
$mime = 'application/octet-stream';
}
else
{
$mime = (is_array($mimes[$extension])) ? $mimes[$extension][0] : $mimes[$extension];
}
// Generate the server headers
if (strstr($_SERVER['HTTP_USER_AGENT'], "MSIE"))
{
header('Content-Type: "'.$mime.'"');
header('Content-Disposition: attachment; filename="'.$filename.'"');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header("Content-Transfer-Encoding: binary");
header('Pragma: public');
//header("Content-Length: ".filesize($path.$filename));
}
else
{
header('Content-Type: "'.$mime.'"');
header('Content-Disposition: attachment; filename="'.$filename.'"');
header("Content-Transfer-Encoding: binary");
header('Expires: 0');
header('Pragma: no-cache');
//header("Content-Length: ".filesize($path.'/'.$filename));
}
echo $content;
}