Cambios

src/java/demojsoncrud/servlets/RequestFilter.java

@@ -6,6 +6,7 @@ import java.io.PrintWriter;
 import javax.servlet.Filter;
 import javax.servlet.FilterChain;
 import javax.servlet.FilterConfig;
+import javax.servlet.RequestDispatcher;
 import javax.servlet.ServletContextEvent;
 import javax.servlet.ServletContextListener;
 import javax.servlet.ServletException;
@@ -16,6 +17,11 @@ import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 import org.json.JSONObject;
 
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+
 @WebFilter("/*")
 public class RequestFilter implements Filter, ServletContextListener {
 
@@ -50,17 +56,10 @@ public class RequestFilter implements Filter, ServletContextListener {
         if (valid.getBoolean("status")) {
           chain.doFilter(request, response);
         } else {
-          if (isAJAXRequest(request)) {
-            StringBuilder sb = new StringBuilder();
-            sb.append("<?xml version=\"1.0\" encoding=\"UTF-8\"?><partial-response><redirect url=\"").append(indexPath).append("\"></redirect></partial-response>");
-            response.setHeader("Cache-Control", "no-cache");
-            response.setCharacterEncoding("UTF-8");
-            response.setContentType("text/xml");
-            PrintWriter pw = response.getWriter();
-            pw.println(sb.toString());
-            pw.flush();
-          }
-//          response.sendRedirect(indexPath);
+            redirect(indexPath);
+//            response.setStatus(response.SC_MOVED_TEMPORARILY);
+//            response.setHeader("Location", indexPath);
+//            response.sendRedirect(indexPath);
         }
       }
     } else {
@@ -78,7 +77,69 @@ public class RequestFilter implements Filter, ServletContextListener {
       response.sendRedirect(indexPath);
     }
   }
+  private void redirect (String indexPath){
+      try {
+
+	String url = indexPath;
+
+	URL obj = new URL(url);
+	HttpURLConnection conn = (HttpURLConnection) obj.openConnection();
+	conn.setReadTimeout(5000);
+	conn.addRequestProperty("Accept-Language", "en-US,en;q=0.8");
+	conn.addRequestProperty("User-Agent", "Mozilla");
+	conn.addRequestProperty("Referer", "google.com");
+
+	System.out.println("Request URL ... " + url);
+
+	boolean redirect = false;
+
+	// normally, 3xx is redirect
+	int status = conn.getResponseCode();
+	if (status != HttpURLConnection.HTTP_OK) {
+		if (status == HttpURLConnection.HTTP_MOVED_TEMP
+			|| status == HttpURLConnection.HTTP_MOVED_PERM
+				|| status == HttpURLConnection.HTTP_SEE_OTHER)
+		redirect = true;
+	}
+
+	System.out.println("Response Code ... " + status);
+
+	if (redirect) {
+
+		// get redirect url from "location" header field
+		String newUrl = conn.getHeaderField("Location");
 
+		// get the cookie if need, for login
+		String cookies = conn.getHeaderField("Set-Cookie");
+
+		// open the new connnection again
+		conn = (HttpURLConnection) new URL(newUrl).openConnection();
+		conn.setRequestProperty("Cookie", cookies);
+		conn.addRequestProperty("Accept-Language", "en-US,en;q=0.8");
+		conn.addRequestProperty("User-Agent", "Mozilla");
+		conn.addRequestProperty("Referer", "google.com");
+								
+		System.out.println("Redirect to URL : " + newUrl);
+
+	}
+
+	BufferedReader in = new BufferedReader(
+                              new InputStreamReader(conn.getInputStream()));
+	String inputLine;
+	StringBuffer html = new StringBuffer();
+
+	while ((inputLine = in.readLine()) != null) {
+		html.append(inputLine);
+	}
+	in.close();
+
+	System.out.println("URL Content... \n" + html.toString());
+	System.out.println("Done");
+
+    } catch (Exception e) {
+	e.printStackTrace();
+    }
+  }
   private boolean isAJAXRequest(HttpServletRequest request) {
     boolean check = false;
     String facesRequest = request.getHeader("X-Requested-With");