/** Utility class containing MIME type-related helper functions. */
public class MimeUtils {
/**
* Determines the MIME type for a given filename.
*
* @param filename
* The file to determine the MIME type of.
* @return The MIME type of the file, or a wildcard if none could be
* determined.
*/
public static String getType(final String filename) {
// There does not seem to be a way to ask the OS or file itself for this
// information, so unfortunately resorting to extension sniffing.
int pos = filename.lastIndexOf('.');
if (pos != -1) {
String ext = filename.substring(filename.lastIndexOf('.') + 1,
filename.length());
if (ext.equalsIgnoreCase("mp3"))
return "audio/mpeg";
if (ext.equalsIgnoreCase("aac"))
return "audio/aac";
if (ext.equalsIgnoreCase("wav"))
return "audio/wav";
if (ext.equalsIgnoreCase("ogg"))
return "audio/ogg";
if (ext.equalsIgnoreCase("mid"))
return "audio/midi";
if (ext.equalsIgnoreCase("midi"))
return "audio/midi";
if (ext.equalsIgnoreCase("wma"))
return "audio/x-ms-wma";
if (ext.equalsIgnoreCase("mp4"))
return "video/mp4";
if (ext.equalsIgnoreCase("avi"))
return "video/x-msvideo";
if (ext.equalsIgnoreCase("wmv"))
return "video/x-ms-wmv";
if (ext.equalsIgnoreCase("png"))
return "image/png";
if (ext.equalsIgnoreCase("jpg"))
return "image/jpeg";
if (ext.equalsIgnoreCase("jpe"))
return "image/jpeg";
if (ext.equalsIgnoreCase("jpeg"))
return "image/jpeg";
if (ext.equalsIgnoreCase("gif"))
return "image/gif";
if (ext.equalsIgnoreCase("xml"))
return "text/xml";
if (ext.equalsIgnoreCase("txt"))
return "text/plain";
if (ext.equalsIgnoreCase("cfg"))
return "text/plain";
if (ext.equalsIgnoreCase("csv"))
return "text/plain";
if (ext.equalsIgnoreCase("conf"))
return "text/plain";
if (ext.equalsIgnoreCase("rc"))
return "text/plain";
if (ext.equalsIgnoreCase("htm"))
return "text/html";
if (ext.equalsIgnoreCase("html"))
return "text/html";
if (ext.equalsIgnoreCase("pdf"))
return "application/pdf";
if (ext.equalsIgnoreCase("apk"))
return "application/vnd.android.package-archive";
// Additions and corrections are welcomed.
}
return "*/*";
}
}