/*
 * Copyright (c) 2002, 2021, 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
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 * questions.
 */

/**
 * @test
 * @bug 4722333
 * @library /test/lib
 * @run main/othervm -Dhttp.auth.digest.reEnabledAlgorithms=MD5 B4722333
 * @summary JRE Proxy Authentication Not Working with ISA2000
 */

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.net.Authenticator;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.PasswordAuthentication;
import java.net.URL;
import java.net.URLConnection;
import java.util.concurrent.Executors;

import com.sun.net.httpserver.HttpExchange;
import com.sun.net.httpserver.HttpHandler;
import com.sun.net.httpserver.HttpServer;
import jdk.test.lib.net.URIBuilder;

public class B4722333 implements HttpHandler {

    static int count = 0;

    static String[][] expected = {
       /* scheme  realm/prompt */
        {"basic", "foo"},
        {"basic", "foobar"},
        {"digest", "biz"},
        {"digest", "bizbar"},
        {"digest", "foobiz"}
    };

    public void handle(HttpExchange req) {
        try {
            if (count % 2 == 1) {
                req.sendResponseHeaders(200, 0);
                try(PrintWriter pw = new PrintWriter(req.getResponseBody())) {
                    pw.print("Hello .");
                }
            } else {
                switch (count) {
                    case 0:
                        req.getResponseHeaders().set("Connection", "close");
                        req.getResponseHeaders().set("WWW-Authenticate", "Basic realm=\"foo\"");
                        req.getResponseHeaders().add("WWW-Authenticate", "Foo realm=\"bar\"");
                        req.sendResponseHeaders(401, -1);
                        break;
                    case 2:
                        req.getResponseHeaders().set("Connection", "close");
                        req.getResponseHeaders().set("WWW-Authenticate", "Basic realm=\"foobar\" Foo realm=\"bar\"");
                        req.sendResponseHeaders(401, -1);
                        break;
                    case 4:
                        req.getResponseHeaders().set("Connection", "close");
                        req.getResponseHeaders().set("WWW-Authenticate", "Digest realm=biz domain=/foo nonce=thisisanonce ");
                        req.getResponseHeaders().add("WWW-Authenticate", "Basic realm=bizbar");
                        req.sendResponseHeaders(401, -1);
                        break;
                    case 6:
                        req.getResponseHeaders().set("Connection", "close");
                        req.getResponseHeaders().set("WWW-Authenticate", "Digest realm=\"bizbar\" domain=/biz nonce=\"hereisanonce\" Basic realm=\"foobar\" Foo realm=\"bar\"");
                        req.sendResponseHeaders(401, -1);
                        break;
                    case 8:
                        req.getResponseHeaders().set("Connection", "close");
                        req.getResponseHeaders().set("WWW-Authenticate", "Foo p1=1 p2=2 p3=3 p4=4 p5=5 p6=6 p7=7 p8=8 p9=10 Digest realm=foobiz domain=/foobiz nonce=newnonce");
                        req.getResponseHeaders().add("WWW-Authenticate", "Basic realm=bizbar");
                        req.sendResponseHeaders(401, -1);
                        break;
                }
            }
            count ++;
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    static void read(InputStream is) throws IOException {
        int c;
        System.out.println("reading");
        while ((c=is.read()) != -1) {
            System.out.write(c);
        }
        System.out.println("");
        System.out.println("finished reading");
    }


    static void client(String u) throws Exception {
        URL url = new URL (u);
        System.out.println("client opening connection to: " + u);
        URLConnection urlc = url.openConnection ();
        InputStream is = urlc.getInputStream ();
        read(is);
        is.close();
    }

    static HttpServer server;

    public static void main(String[] args) throws Exception {
        B4722333 b4722333 = new B4722333();
        MyAuthenticator auth = new MyAuthenticator();
        Authenticator.setDefault(auth);
        try {
            InetAddress loopback = InetAddress.getLoopbackAddress();
            server = HttpServer.create(new InetSocketAddress(loopback, 0), 10);
            server.createContext("/", b4722333);
            server.setExecutor(Executors.newSingleThreadExecutor());
            server.start();
            System.out.println("Server started: listening on port: " + server.getAddress().getPort());
            String serverURL = URIBuilder.newBuilder()
                    .scheme("http")
                    .loopback()
                    .port(server.getAddress().getPort())
                    .path("/")
                    .build()
                    .toString();
            client(serverURL + "d1/d2/d3/foo.html");
            client(serverURL + "ASD/d3/x.html");
            client(serverURL + "biz/d3/x.html");
            client(serverURL + "bar/d3/x.html");
            client(serverURL + "fuzz/d3/x.html");
        } catch (Exception e) {
            if (server != null) {
                server.stop(1);
            }
            throw e;
        }
        int f = auth.getCount();
        if (f != expected.length) {
            except("Authenticator was called "+f+" times. Should be " + expected.length);
        }
        server.stop(1);
    }

    public static void except(String s) {
        server.stop(1);
        throw new RuntimeException(s);
    }

    static class MyAuthenticator extends Authenticator {
        MyAuthenticator() {
            super();
        }

        int count = 0;

        public PasswordAuthentication getPasswordAuthentication() {
            System.out.println("Auth called");
            String scheme = getRequestingScheme();
            System.out.println("getRequestingScheme() returns " + scheme);
            String prompt = getRequestingPrompt();
            System.out.println("getRequestingPrompt() returns " + prompt);

            if (!scheme.equals(expected [count][0])) {
                B4722333.except("wrong scheme received, " + scheme + " expected " + expected [count][0]);
            }
            if (!prompt.equals(expected [count][1])) {
                B4722333.except("wrong realm received, " + prompt + " expected " + expected [count][1]);
            }
            count ++;
            return (new PasswordAuthentication("user", "passwordNotCheckedAnyway".toCharArray()));
        }

        public int getCount () {
            return count;
        }
    }

}