String returnURL = request.getParameter("returnURL");
if ( returnURL == null ) {
returnURL = "/";
}
String mode = request.getParameter("textOnly");
if ("1".equals(mode)) {
if (!returnURL.startsWith("/text")) {
returnURL = "/text" + returnURL;
}
} else {
if (returnURL.startsWith("/text")) {
returnURL = returnURL.substring(5);
}
}
response.sendRedirect(returnURL);