+ private static final Logger LOG = Logger.getLogger(Pnews.class.getName());
+ private static final long serialVersionUID = 1L;
+
+ private static String getQueryParameter(HttpServletRequest rq, String key)
+ throws UnsupportedEncodingException {
+ String[] params;
+ int idx;
+ String q;
+
+ q = rq.getQueryString();
+
+ if (q == null)
+ return null;
+
+ params = URLDecoder.decode(q, "UTF-8").split("&");
+
+ for (String p: params) {
+ idx = p.indexOf('=');
+
+ if (idx > 1 && p.substring(0, idx).equals(key))
+ return p.substring(idx + 1);
+ }
+
+ return null;
+ }
+
+ private static void redirect(HttpServletRequest rq, HttpServletResponse rp) {
+ String redirectURL;
+
+ try {
+ redirectURL = getQueryParameter(rq, "url");
+
+ LOG.info("Request redirection to " + redirectURL);
+
+ if (redirectURL != null) {
+ rp.setHeader("Location", redirectURL);
+ rp.setStatus(HttpServletResponse.SC_TEMPORARY_REDIRECT);
+ } else {
+ rp.setStatus(HttpServletResponse.SC_NOT_FOUND);
+ }
+
+ } catch (UnsupportedEncodingException e) {
+ e.printStackTrace();
+ LOG.log(Level.SEVERE, "redirect failure", e);
+ rp.setStatus(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+ }
+ }
+
+ @Override
+ protected void doGet(HttpServletRequest req, HttpServletResponse resp) {
+ String path;
+
+ LOG.info("doGet " + req.getRequestURI());