protected UserSession handleBasicAuthentication(String credentials, HttpServletRequest request) { // This example uses sun.misc.* classes. // You will need to provide your own // if you are not comfortable with that. String userPass = StringHelper.decodeBase64(credentials); // The decoded string is in the form // "userID:password". int p = userPass.indexOf(":"); if (p != -1) { String userID = userPass.substring(0, p); String password = userPass.substring(p + 1); // Validate user ID and password // and set valid true if valid. // In this example, we simply check // that neither field is blank Identity identity = webDAVAuthManager.authenticate(null, userID, password); if (identity != null) { return afterAuthorization(identity, request); } } return null; }