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
$ext = substr( $_SERVER[ 'REQUEST_URI' ], strrpos( $_SERVER[ 'REQUEST_URI' ], '.' ) + 1 );
$ext_list = array( "jpg" => "image/jpeg", "mp3" => "audio/mpeg", "mov" => "video/quicktime" );
if( $ext_list[ $ext ] ) {
$mimetype = $ext_list[ $ext ];
} else {
$mimetype = "image/$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 "Error 404! File Not Found!";
print "";
print "File Not Found!
";
print "";
}
?>