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<?php
define( "BLOGDEFINITION", true );
require_once( "../wp-config.php" );
if ( !function_exists('wp_check_filetype') ) :
function wp_check_filetype($filename, $mimes = null) {
// Accepted MIME types are set here as PCRE unless provided.
$mimes = is_array($mimes) ? $mimes : array (
'jpg|jpeg|jpe' => 'image/jpeg',
'gif' => 'image/gif',
'png' => 'image/png',
'bmp' => 'image/bmp',
'tif|tiff' => 'image/tiff',
'ico' => 'image/x-icon',
'asf|asx|wax|wmv|wmx' => 'video/asf',
'avi' => 'video/avi',
'mov|qt' => 'video/quicktime',
'mpeg|mpg|mpe' => 'video/mpeg',
'txt|c|cc|h' => 'text/plain',
'rtx' => 'text/richtext',
'css' => 'text/css',
'htm|html' => 'text/html',
'mp3|mp4' => 'audio/mpeg',
'ra|ram' => 'audio/x-realaudio',
'wav' => 'audio/wav',
'ogg' => 'audio/ogg',
'mid|midi' => 'audio/midi',
'wma' => 'audio/wma',
'rtf' => 'application/rtf',
'js' => 'application/javascript',
'pdf' => 'application/pdf',
'doc' => 'application/msword',
'pot|pps|ppt' => 'application/vnd.ms-powerpoint',
'wri' => 'application/vnd.ms-write',
'xla|xls|xlt|xlw' => 'application/vnd.ms-excel',
'mdb' => 'application/vnd.ms-access',
'mpp' => 'application/vnd.ms-project',
'swf' => 'application/x-shockwave-flash',
'class' => 'application/java',
'tar' => 'application/x-tar',
'zip' => 'application/zip',
'gz|gzip' => 'application/x-gzip',
'exe' => 'application/x-msdownload'
);
$type = false;
$ext = false;
foreach ($mimes as $ext_preg => $mime_match) {
$ext_preg = '!\.(' . $ext_preg . ')$!i';
if ( preg_match($ext_preg, $filename, $ext_matches) ) {
$type = $mime_match;
$ext = $ext_matches[1];
break;
}
}
return compact('ext', 'type');
}
endif;
// Referrer protection
if( $_SERVER["HTTP_REFERER"] ) {
if( strpos( $_SERVER["HTTP_REFERER"], $current_blog->domain ) == false ) {
// do something against hot linking sites!
}
}
$file = $_GET[ 'file' ];
$file = ABSPATH . "wp-content/blogs.dir/" . $blog_id . '/files/' . $file;
if( is_file( $file ) ) {
$etag = md5( $file . filemtime( $file ) );
$lastModified = date( "D, j M Y H:i:s ", filemtime( $file ) ) . "GMT";
#$headers = apache_request_headers();
// get mime type
$mime = wp_check_filetype( $_SERVER[ 'REQUEST_URI' ] );
if( $mime[ 'type' ] != false ) {
$mimetype = $mime[ 'type' ];
} else {
$ext = substr( $_SERVER[ 'REQUEST_URI' ], strrpos( $_SERVER[ 'REQUEST_URI' ], '.' ) + 1 );
$mimetype = "image/$ext";
}
// from http://blog.rd2inc.com/archives/2005/03/24/making-dynamic-php-pages-cacheable/
if( $_SERVER[ 'HTTP_IF_NONE_MATCH' ] == '"' . $etag . '"' || $lastModified == $_SERVER['HTTP_IF_MODIFIED_SINCE']) {
// They already have an up to date copy so tell them
header('HTTP/1.1 304 Not Modified');
header('Cache-Control: private');
header('Content-Type: $mimetype');
header('ETag: "'.$etag.'"');
} else {
header("Content-type: $mimetype" );
header( "Last-Modified: " . $lastModified );
header( 'Accept-Ranges: bytes' );
header( "Content-Length: " . filesize( $file ) );
header( 'ETag: "' . $etag . '"' );
readfile( $file );
}
} else {
// 404
header("HTTP/1.1 404 Not Found");
print "<html><head><title>Error 404! File Not Found!</title></head>";
print "<body>";
print "<h1>File Not Found!</h1>";
print "</body></html>";
}
?>
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