1 /*
   2  * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 import java.io.*;
  25 import java.util.function.Supplier;
  26 import jdk.incubator.http.internal.common.HttpHeadersImpl;
  27 import static java.nio.charset.StandardCharsets.ISO_8859_1;
  28 
  29 public class RedirectHandler implements Http2Handler {
  30 
  31     final Supplier<String> supplier;
  32 
  33     public RedirectHandler(Supplier<String> redirectSupplier) {
  34         supplier = redirectSupplier;
  35     }
  36 
  37     static String consume(InputStream is) throws IOException {
  38         byte[] b = new byte[1024];
  39         int i;
  40         StringBuilder sb = new StringBuilder();
  41 
  42         while ((i=is.read(b)) != -1) {
  43             sb.append(new String(b, 0, i, ISO_8859_1));
  44         }
  45         is.close();
  46         return sb.toString();
  47     }
  48 
  49     @Override
  50     public void handle(Http2TestExchange t) throws IOException {
  51         try {
  52             consume(t.getRequestBody());
  53             String location = supplier.get();
  54             System.err.println("RedirectHandler received request to " + t.getRequestURI());
  55             System.err.println("Redirecting to: " + location);
  56             HttpHeadersImpl map1 = t.getResponseHeaders();
  57             map1.addHeader("Location", location);
  58             t.sendResponseHeaders(301, 0);
  59             // return the number of bytes received (no echo)
  60             t.close();
  61         } catch (Throwable e) {
  62             e.printStackTrace();
  63             throw new IOException(e);
  64         }
  65     }
  66 }