/*
 * Copyright (c) 2011, 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 issue 16252
 *
 * Unit test for dynamic reconfiguration of alternate docroot support.
 *
 * This test configures the virtual server "server" with the following
 * alternate docroot properties:
 *
 * Exact match:
 *
 *   <property
 *     name="alternatedocroot_1"
 *     value="from=/domain.xml dir=${env.S1AS_HOME}/domains/${admin.domain}/config"/>
 *
 * Extension match:
 *
 *   <property
 *     name="alternatedocroot_2"
 *     value="from=*.policy dir=${env.S1AS_HOME}/domains/${admin.domain}/config"/>
 *
 * Path prefix match:
 *
 *   <property
 *     name="alternatedocroot_3"
 *     value="from=/config/* dir=${env.S1AS_HOME}/domains/${admin.domain}"/>
 *
 * and then ensures that a request with a URI of the form
 *   "/domain.xml"
 * is mapped to:
 *   ${env.S1AS_HOME}/domains/${admin.domain}/config/domain.xml
 * (exact match),
 *
 * a second request with a URI of the form
 *   "/server.policy"
 * is mapped to:
 *   ${env.S1AS_HOME}/domains/${admin.domain}/config/server.policy
 * (extension match),
 *
 * and a third request with a URI of the form
 *  "/config/login.conf"
 * is mapped to:
 *   ${env.S1AS_HOME}/domains/${admin.domain}/config/login.conf
 * (path prefix match).
 *
 * If it were not for the alternate docroots, the above requests would
 * result in a 404, since the requested resources are not available in the
 * regular docroot of virtual server "server".
 */
public class WebTest {

    private static SimpleReporterAdapter stat
        = new SimpleReporterAdapter("appserv-tests");

    private static final String TEST_NAME
        = "virtual-server-alternate-docroot-restart";

    private String host;
    private String port;
    private String contextRoot;
    private String expectedResponseCode;
    private boolean result = true;

    public WebTest(String[] args) {
        host = args[0];
        port = args[1];
        contextRoot = args[2];
        expectedResponseCode = args[3];
    }

    public static void main(String[] args) {
        stat.addDescription("Unit test for alternate docroot support");
        WebTest webTest = new WebTest(args);
        webTest.doTest();
        stat.printSummary(TEST_NAME);
    }

    public void doTest() {
        try {
            invoke("/domain.xml", "<domain ");
            invoke("/server.policy", "grant codeBase");
            invoke("/config/login.conf", "fileRealm");
            if (result)
                stat.addStatus(TEST_NAME, stat.PASS);
        } catch (Exception ex) {
            stat.addStatus(TEST_NAME, stat.FAIL);
            ex.printStackTrace();
        }
    }

    /*
     * @param uri The URI to connect to
     * @param expected The string that must be present in the returned contents
     * in order for the test to pass
     */
    private void invoke(String uri, String expected) throws Exception {

        try {

        URL url = new URL("http://" + host  + ":" + port + uri);
        System.out.println("Connecting to: " + url.toString());
        HttpURLConnection conn = (HttpURLConnection) url.openConnection();
        conn.connect();

        int responseCode = conn.getResponseCode();
        if (responseCode != Integer.parseInt(expectedResponseCode)) {
            result = false;
            stat.addStatus(TEST_NAME, stat.FAIL);
            throw new Exception("Wrong response code. Expected: " + expectedResponseCode
                                + ", received: " + responseCode);
        }

        InputStream is = conn.getInputStream();
        BufferedReader input = new BufferedReader(new InputStreamReader(is));
        String line = null;
        while ((line = input.readLine()) != null) {
            // Search resource contents for expected string
            if (line.contains(expected)) {
                break;
            }
        }

        if (line == null) {
            throw new Exception("Missing content for " + uri);
        }

        } catch (Exception ex) {
            if (expectedResponseCode.equals("404")) {
                System.out.println("Expected error "+ex+" "+ex.getMessage());
            } else {
                throw ex;
            }
        }
    }
}