/*
 * Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0, which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 *
 * This Source Code may also be made available under the following Secondary
 * Licenses when the conditions for such availability set forth in the
 * Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
 * version 2 with the GNU Classpath Exception, which is available at
 * https://www.gnu.org/software/classpath/license.html.
 *
 * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
 */

import java.io.*;
import java.net.*;
import com.sun.ejte.ccl.reporter.*;

/*
 * Unit test for https://glassfish.dev.java.net/issues/show_bug.cgi?id=1093
 * ("x-powered-by header has redundant information"):
 *
 * Make sure that if one JSP forwards to another, the response does not
 * contain any duplicate 'X-Powered-By: JSP' header.
 */
public class WebTest {

    private static SimpleReporterAdapter stat
        = new SimpleReporterAdapter("appserv-tests");
    private static final String TEST_NAME = "jsp-xpowered-by-single-response-header";

    private String host;
    private String port;
    private String contextRoot;

    public WebTest(String[] args) {
        host = args[0];
        port = args[1];
        contextRoot = args[2];
    }

    public static void main(String[] args) {
        stat.addDescription("Unit test for GlassFish issue 1093");

        try {
            new WebTest(args).doTest();
            stat.addStatus(TEST_NAME, stat.PASS);
        } catch (Exception ex) {
            System.out.println(TEST_NAME + " test failed");
            stat.addStatus(TEST_NAME, stat.FAIL);
            ex.printStackTrace();
        }

        stat.printSummary(TEST_NAME);
    }

    private void doTest() throws Exception {

        Socket sock = null;
        OutputStream os = null;
        InputStream is = null;
        BufferedReader bis = null;
        try {
            sock = new Socket(host, new Integer(port).intValue());
            os = sock.getOutputStream();
            String get = "GET " + contextRoot + "/from.jsp" + " HTTP/1.0\n";
            System.out.println(get);
            os.write(get.getBytes());
            os.write("\n".getBytes());

            is = sock.getInputStream();
            bis = new BufferedReader(new InputStreamReader(is));

            String line = null;
            int count = 0;
            while ((line = bis.readLine()) != null) {
                if (line.startsWith("X-Powered-By: JSP")) {
                    count++;
                }
            }

            if (count != 1) {
                throw new Exception("Expected one 'X-Powered-By: JSP' response " +
                                    "header, got: " + count);
            }
        } finally {
            try {
                if (os != null) os.close();
            } catch (IOException ex) {}
            try {
                if (is != null) is.close();
            } catch (IOException ex) {}
            try {
                if (sock != null) sock.close();
            } catch (IOException ex) {}
            try {
                if (bis != null) bis.close();
            } catch (IOException ex) {}
        }
    }

}