WordPress file protected with user login

Some time we deed to give option to user download PDF, Doc file the protected with user login

On Download action code as like below


foreach($download_list as $list) {
$title = $list['title'];
$download = $list['download']['url'];

$path = get_home_url().'/';
$dir = '';
$resource_src = str_replace($path, $dir, $download);
$data = base64_encode($resource_src.'^'.get_current_user_id());

$url = get_site_url()."/download.php?file=$data";
?>
<li><a href="<?php echo $url; ?>" target="_blank"><?php echo $title; ?></a></li>
<?php
}

Create “download.php” file from root and add below code.


include('wp-load.php');

if( !get_current_user_id() )
{
wp_redirect(site_url('login/'));
exit;
}
$rew = explode('^',base64_decode($_GET['file']));
if($rew[1] != get_current_user_id())
{
wp_redirect(site_url('login/'));
exit;
}
$file = $rew[0];
$all = $_GET['all'];
if(isset($all)) {
if(json_decode($all)) {
$allFiles = json_decode($all);
} else {
$allFiles = explode(',',$all);

}

$zipname = 'images-'.date('YmdHis').'.zip';
$zip = new ZipArchive;
$zip->open($zipname, ZipArchive::CREATE);

foreach ($allFiles as $imgfile) {
$path_parts = pathinfo($imgfile);
$ext = strtolower($path_parts["extension"]);
if($ext != 'php') {
$zip->addFile($imgfile, basename($imgfile));
}
}
$zip->close();
header("Content-type: application/zip");
header("Content-Disposition: attachment; filename=$zipname");
header("Pragma: no-cache");
header("Expires: 0");

readfile($zipname);
unlink($zipname);
}
if(isset($file)) {
download_file($file);
}
function download_file( $fullPath ){

// Must be fresh start
if( headers_sent() )
die('Headers Sent');

// Required for some browsers
if(ini_get('zlib.output_compression'))
ini_set('zlib.output_compression', 'Off');

// File Exists?
if( file_exists($fullPath) ){

// Parse Info / Get Extension
$fsize = filesize($fullPath);
$path_parts = pathinfo($fullPath);
$ext = strtolower($path_parts["extension"]);

// Determine Content Type
switch ($ext) {
case "pdf": $ctype="application/pdf"; break;
case "exe": $ctype="application/octet-stream"; break;
case "zip": $ctype="application/zip"; break;
case "doc": $ctype="application/msword"; break;
case "xls": $ctype="application/vnd.ms-excel"; break;
case "ppt": $ctype="application/vnd.ms-powerpoint"; break;
case "gif": $ctype="image/gif"; break;
case "png": $ctype="image/png"; break;
case "jpeg":
case "jpg": $ctype="image/jpg"; break;
default: $ctype="application/force-download";
}

if($ext != 'php') {
header("Pragma: public"); // required
header("Expires: 0");
header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
header("Cache-Control: private",false); // required for certain browsers
header("Content-Type: $ctype");
header("Content-Disposition: attachment; filename=\"".basename($fullPath)."\";" );
header("Content-Transfer-Encoding: binary");
header("Content-Length: ".$fsize);
ob_clean();
flush();
readfile( $fullPath );
} else
die('Invalid File');

} else
die('File Not Found');

}

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