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[SOLVED] Download Files (Almost a forced download)


willpower

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HI

 

OK so i have read the scripts and tried several.  Each I have got to work.  But I dont want to 'FORCE' a download, rather i want to suggest that thats what they do.  I need the user to be able to download the document (not view it) but to chose where they should save it, possibly rename it etc.

 

All the scrpits i have tried simple force the download without confirmation or location choice...so to a novie user, they may not even think it worked.

 

How do i achieve  this?

 

 

here is an script...no particular reason to show this other than it was the shortest

 

<?php
// ver. 1.04 - added an example how to use this script with the filename from a query string
// ver. 1.03 - moved the disposition header into the switch because the attachement attibute is sometimes needed  
// ver. 1.02 - use pathinfo() to get the fileinformation (extesnion) now
// ver. 1.01 - Added the stringconv. to handle also extensions with caps

// place this code inside a php file and call it f.e. "download.php"
$path = $_SERVER['DOCUMENT_ROOT']."/assets/docs/"; // play with the path if the document root does noet exist
$fullPath = $path.$_GET['f'];

if ($fd = fopen ($fullPath, "r")) {
    $fsize = filesize($fullPath);
    $path_parts = pathinfo($fullPath);
    $ext = strtolower($path_parts["extension"]);
    switch ($ext) {
        case "pdf":
        header("Content-type: application/pdf"); // add here more headers for diff. extensions
        header("Content-Disposition: attachment; filename=\"".$path_parts["basename"]."\""); // use 'attachement' to force a download
        break;
        default;
        header("Content-type: application/octet-stream");
        header("Content-Disposition: filename=\"".$path_parts["basename"]."\"");
    }
    header("Content-length: $fsize");
    header("Cache-control: private"); //use this to open files directly
    while(!feof($fd)) {
        $buffer = fread($fd, 2048);
        echo $buffer;
    }
}
fclose ($fd);
exit;
?>

Here is another...both 'force the download'. I need a SAVE AS option....any ideas?

 

<?php
function output_file($file, $name, $mime_type='')
{
/*
This function takes a path to a file to output ($file), 
the filename that the browser will see ($name) and 
the MIME type of the file ($mime_type, optional).

If you want to do something on download abort/finish,
register_shutdown_function('function_name');
*/
if(!is_readable($file)) die('File not found or inaccessible!');

$size = filesize($file);
$name = rawurldecode($name);

/* Figure out the MIME type (if not specified) */
$known_mime_types=array(
	"pdf" => "application/pdf",
	"txt" => "text/plain",
	"html" => "text/html",
	"htm" => "text/html",
"exe" => "application/octet-stream",
"zip" => "application/zip",
"doc" => "application/msword",
"xls" => "application/vnd.ms-excel",
"ppt" => "application/vnd.ms-powerpoint",
"gif" => "image/gif",
"png" => "image/png",
"jpeg"=> "image/jpg",
"jpg" =>  "image/jpg",
"php" => "text/plain"
);

if($mime_type==''){
 $file_extension = strtolower(substr(strrchr($file,"."),1));
 if(array_key_exists($file_extension, $known_mime_types)){
	$mime_type=$known_mime_types[$file_extension];
 } else {
	$mime_type="application/force-download";
 };
};

@ob_end_clean(); //turn off output buffering to decrease cpu usage

// required for IE, otherwise Content-Disposition may be ignored
if(ini_get('zlib.output_compression'))
  ini_set('zlib.output_compression', 'Off');

header('Content-Type: ' . $mime_type);
header('Content-Disposition: attachment; filename="'.$name.'"');
header("Content-Transfer-Encoding: binary");
header('Accept-Ranges: bytes');

/* The three lines below basically make the 
    download non-cacheable */
header("Cache-control: private");
header('Pragma: private');
header("Expires: Mon, 26 Jul 1997 05:00:00 GMT");

// multipart-download and download resuming support
if(isset($_SERVER['HTTP_RANGE']))
{
list($a, $range) = explode("=",$_SERVER['HTTP_RANGE'],2);
list($range) = explode(",",$range,2);
list($range, $range_end) = explode("-", $range);
$range=intval($range);
if(!$range_end) {
	$range_end=$size-1;
} else {
	$range_end=intval($range_end);
}

$new_length = $range_end-$range+1;
header("HTTP/1.1 206 Partial Content");
header("Content-Length: $new_length");
header("Content-Range: bytes $range-$range_end/$size");
} else {
$new_length=$size;
header("Content-Length: ".$size);
}

/* output the file itself */
$chunksize = 1*(1024*1024); //you may want to change this
$bytes_send = 0;
if ($file = fopen($file, 'r'))
{
if(isset($_SERVER['HTTP_RANGE']))
fseek($file, $range);

while(!feof($file) && 
	(!connection_aborted()) && 
	($bytes_send<$new_length)
      )
{
	$buffer = fread($file, $chunksize);
	print($buffer); //echo($buffer); // is also possible
	flush();
	$bytes_send += strlen($buffer);
}
fclose($file);
} else die('Error - can not open file.');

die();
}	

$file='assets/docs/'.$_GET['f'];
$name=$_GET['f'];

output_file($file, $name, $mime_type='')


?>

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