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/*
* Copyright (c) 2006, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 6427251 6382788
* @modules jdk.httpserver
* @run main RetryPost
* @run main/othervm -Dsun.net.http.retryPost=false RetryPost noRetry
* @summary HttpURLConnection automatically retries non-idempotent method POST
*/
import com.sun.net.httpserver.HttpContext;
import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import java.io.IOException;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.SocketException;
import java.net.URL;
import java.util.concurrent.Executors;
import java.util.concurrent.ExecutorService;
public class RetryPost
{
static boolean shouldRetry = true;
com.sun.net.httpserver.HttpServer httpServer;
MyHandler httpHandler;
ExecutorService executorService;
public static void main(String[] args) {
if (args.length == 1 && args[0].equals("noRetry"))
shouldRetry = false;
new RetryPost();
}
public RetryPost() {
try {
startHttpServer(shouldRetry);
doClient();
} catch (IOException ioe) {
System.err.println(ioe);
}
}
void doClient() {
try {
InetSocketAddress address = httpServer.getAddress();
URL url = new URL("http://localhost:" + address.getPort() + "/test/");
HttpURLConnection uc = (HttpURLConnection)url.openConnection(Proxy.NO_PROXY);
uc.setDoOutput(true);
uc.setRequestMethod("POST");
uc.getResponseCode();
// if we reach here then we have failed
throw new RuntimeException("Failed: POST request being retried");
} catch (SocketException se) {
// this is what we expect to happen and is OK.
if (shouldRetry && httpHandler.getCallCount() != 2)
throw new RuntimeException("Failed: Handler should have been called twice. " +
"It was called "+ httpHandler.getCallCount() + " times");
else if (!shouldRetry && httpHandler.getCallCount() != 1)
throw new RuntimeException("Failed: Handler should have only been called once" +
"It was called "+ httpHandler.getCallCount() + " times");
} catch (IOException e) {
e.printStackTrace();
} finally {
httpServer.stop(1);
executorService.shutdown();
}
}
/**
* Http Server
*/
public void startHttpServer(boolean shouldRetry) throws IOException {
httpServer = com.sun.net.httpserver.HttpServer.create(new InetSocketAddress(0), 0);
httpHandler = new MyHandler(shouldRetry);
HttpContext ctx = httpServer.createContext("/test/", httpHandler);
executorService = Executors.newCachedThreadPool();
httpServer.setExecutor(executorService);
httpServer.start();
}
class MyHandler implements HttpHandler {
int callCount = 0;
boolean shouldRetry;
public MyHandler(boolean shouldRetry) {
this.shouldRetry = shouldRetry;
}
public void handle(HttpExchange t) throws IOException {
callCount++;
if (callCount > 1 && !shouldRetry) {
// if this bug has been fixed then this method will not be called twice
// when -Dhttp.retryPost=false
t.sendResponseHeaders(400, -1); // indicate failure by returning 400
} else {
// simply close out the stream without sending any data.
OutputStream os = t.getResponseBody();
os.close();
}
}
public int getCallCount() {
return callCount;
}
}
}
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