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//
// ========================================================================
// Copyright (c) 1995-2012 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.servlet;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.URI;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.util.IO;
import org.junit.AfterClass;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.hamcrest.Matchers.containsString;
import static org.hamcrest.Matchers.startsWith;
public class ResponseHeadersTest
{
/** Pretend to be a WebSocket Upgrade (not real) */
@SuppressWarnings("serial")
private static class SimulateUpgradeServlet extends HttpServlet
{
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse response) throws ServletException, IOException
{
response.setHeader("Upgrade","WebSocket");
response.addHeader("Connection","Upgrade");
response.addHeader("Sec-WebSocket-Accept","123456789==");
response.setStatus(HttpServletResponse.SC_SWITCHING_PROTOCOLS);
}
}
private static Server server;
private static ServerConnector connector;
private static URI serverUri;
@BeforeClass
public static void startServer() throws Exception
{
// Configure Server
server = new Server();
connector = new ServerConnector(server);
server.addConnector(connector);
ServletContextHandler context = new ServletContextHandler();
context.setContextPath("/");
server.setHandler(context);
// Serve capture servlet
context.addServlet(new ServletHolder(new SimulateUpgradeServlet()),"/*");
// Start Server
server.start();
String host = connector.getHost();
if (host == null)
{
host = "localhost";
}
int port = connector.getLocalPort();
serverUri = new URI(String.format("http://%s:%d/",host,port));
}
@AfterClass
public static void stopServer()
{
try
{
server.stop();
}
catch (Exception e)
{
e.printStackTrace(System.err);
}
}
@Test
public void testResponseHeaderFormat() throws IOException
{
Socket socket = new Socket();
SocketAddress endpoint = new InetSocketAddress(serverUri.getHost(),serverUri.getPort());
socket.connect(endpoint);
StringBuilder req = new StringBuilder();
req.append("GET / HTTP/1.1\r\n");
req.append(String.format("Host: %s:%d\r\n",serverUri.getHost(),serverUri.getPort()));
req.append("\r\n");
OutputStream out = null;
InputStream in = null;
try
{
out = socket.getOutputStream();
in = socket.getInputStream();
// Write request
out.write(req.toString().getBytes());
out.flush();
// Read response
String respHeader = readResponseHeader(in);
// Now test for properly formatted HTTP Response Headers.
Assert.assertThat("Response Code",respHeader,startsWith("HTTP/1.1 101 Switching Protocols"));
Assert.assertThat("Response Header Upgrade",respHeader,containsString("Upgrade: WebSocket\r\n"));
Assert.assertThat("Response Header Connection",respHeader,containsString("Connection: Upgrade\r\n"));
}
finally
{
IO.close(in);
IO.close(out);
socket.close();
}
}
private String readResponseHeader(InputStream in) throws IOException
{
InputStreamReader isr = new InputStreamReader(in);
BufferedReader reader = new BufferedReader(isr);
StringBuilder header = new StringBuilder();
// Read the response header
String line = reader.readLine();
Assert.assertNotNull(line);
Assert.assertThat(line,startsWith("HTTP/1.1 "));
header.append(line).append("\r\n");
while ((line = reader.readLine()) != null)
{
if (line.trim().length() == 0)
{
break;
}
header.append(line).append("\r\n");
}
return header.toString();
}
}
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