1 /*

     2  * Copyright (c) 2013, 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 /**

    25  * @test

    26  * @bug 8011719

    27  * @summary Basic checks to verify behavior of returned input streams

    28  */

    29 

    30 import com.sun.net.httpserver.HttpExchange;

    31 import com.sun.net.httpserver.HttpHandler;

    32 import com.sun.net.httpserver.HttpServer;

    33 import java.io.*;

    34 import java.net.*;

    35 import java.nio.charset.StandardCharsets;

    36 import java.util.*;

    37 

    38 public class HttpStreams {

    39 

    40     void client(String u) throws Exception {

    41         byte[] ba = new byte[5];

    42         HttpURLConnection urlc = (HttpURLConnection)(new URL(u)).openConnection();

    43         int resp = urlc.getResponseCode();

    44         InputStream is;

    45         if (resp == 200)

    46             is = urlc.getInputStream();

    47         else

    48             is = urlc.getErrorStream();

    49 

    50         expectNoThrow(() -> { is.read(); }, "read on open stream should not throw :" + u);

    51         expectNoThrow(() -> { is.close(); }, "close should never throw: " + u);

    52         expectNoThrow(() -> { is.close(); }, "close should never throw: " + u);

    53         expectThrow(() -> { is.read(); }, "read on closed stream should throw: " + u);

    54         expectThrow(() -> { is.read(ba); }, "read on closed stream should throw: " + u);

    55         expectThrow(() -> { is.read(ba, 0, 2); }, "read on closed stream should throw: " + u);

    56     }

    57 

    58     void test() throws Exception {

    59         HttpServer server = null;

    60         try {

    61             server = startHttpServer();

    62             String baseUrl = "http://localhost:" + server.getAddress().getPort() + "/";

    63             client(baseUrl +  "chunked/");

    64             client(baseUrl +  "fixed/");

    65             client(baseUrl +  "error/");

    66             client(baseUrl +  "chunkedError/");

    67 

    68             // Test with a response cache

    69             ResponseCache ch = ResponseCache.getDefault();

    70             ResponseCache.setDefault(new TrivialCacheHandler());

    71             try {

    72                 client(baseUrl +  "chunked/");

    73                 client(baseUrl +  "fixed/");

    74                 client(baseUrl +  "error/");

    75                 client(baseUrl +  "chunkedError/");

    76             } finally {

    77                 ResponseCache.setDefault(ch);

    78             }

    79         } finally {

    80             if (server != null)

    81                 server.stop(0);

    82         }

    83 

    84         System.out.println("passed: " + pass + ", failed: " + fail);

    85         if (fail > 0)

    86             throw new RuntimeException("some tests failed check output");

    87     }

    88 

    89     public static void main(String[] args) throws Exception {

    90         (new HttpStreams()).test();

    91     }

    92 

    93     // HTTP Server

    94     HttpServer startHttpServer() throws IOException {

    95         HttpServer httpServer = HttpServer.create(new InetSocketAddress(0), 0);

    96         httpServer.createContext("/chunked/", new ChunkedHandler());

    97         httpServer.createContext("/fixed/", new FixedHandler());

    98         httpServer.createContext("/error/", new ErrorHandler());

    99         httpServer.createContext("/chunkedError/", new ChunkedErrorHandler());

   100         httpServer.start();

   101         return httpServer;

   102     }

   103 

   104     static abstract class AbstractHandler implements HttpHandler {

   105         @Override

   106         public void handle(HttpExchange t) throws IOException {

   107             try (InputStream is = t.getRequestBody()) {

   108                 while (is.read() != -1);

   109             }

   110             t.sendResponseHeaders(respCode(), length());

   111             try (OutputStream os = t.getResponseBody()) {

   112                 os.write(message());

   113             }

   114             t.close();

   115         }

   116 

   117         abstract int respCode();

   118         abstract int length();

   119         abstract byte[] message();

   120     }

   121 

   122     static class ChunkedHandler extends AbstractHandler {

   123         static final byte[] ba =

   124                 "Hello there from chunked handler!".getBytes(StandardCharsets.US_ASCII);

   125         int respCode() { return 200; }

   126         int length() { return 0; }

   127         byte[] message() { return ba; }

   128     }

   129 

   130     static class FixedHandler extends AbstractHandler {

   131         static final byte[] ba =

   132                 "Hello there from fixed handler!".getBytes(StandardCharsets.US_ASCII);

   133         int respCode() { return 200; }

   134         int length() { return ba.length; }

   135         byte[] message() { return ba; }

   136     }

   137 

   138     static class ErrorHandler extends AbstractHandler {

   139         static final byte[] ba =

   140                 "This is an error mesg from the server!".getBytes(StandardCharsets.US_ASCII);

   141         int respCode() { return 400; }

   142         int length() { return ba.length; }

   143         byte[] message() { return ba; }

   144     }

   145 

   146     static class ChunkedErrorHandler extends ErrorHandler {

   147         int length() { return 0; }

   148     }

   149 

   150     static class TrivialCacheHandler extends ResponseCache

   151     {

   152        public CacheResponse get(URI uri, String rqstMethod, Map rqstHeaders) {

   153           return null;

   154        }

   155 

   156        public CacheRequest put(URI uri, URLConnection conn) {

   157           return new TrivialCacheRequest();

   158        }

   159     }

   160 

   161     static class TrivialCacheRequest extends CacheRequest

   162     {

   163        ByteArrayOutputStream baos = new ByteArrayOutputStream();

   164        public void abort() {}

   165        public OutputStream getBody() throws IOException { return baos; }

   166     }

   167 

   168     static interface ThrowableRunnable {

   169         void run() throws IOException;

   170     }

   171 

   172     void expectThrow(ThrowableRunnable r, String msg) {

   173         try { r.run(); fail(msg); } catch (IOException x) { pass(); }

   174     }

   175 

   176     void expectNoThrow(ThrowableRunnable r, String msg) {

   177         try { r.run(); pass(); } catch (IOException x) { fail(msg, x); }

   178     }

   179 

   180     private int pass;

   181     private int fail;

   182     void pass() { pass++; }

   183     void fail(String msg, Exception x) { System.out.println(msg); x.printStackTrace(); fail++; }

   184     void fail(String msg) { System.out.println(msg); Thread.dumpStack(); fail++; }

   185 }