/*
 * Copyright (c) 2010-2012 Sonatype, Inc. All rights reserved.
 *
 * This program is licensed to you under the Apache License Version 2.0,
 * and you may not use this file except in compliance with the Apache License Version 2.0.
 * You may obtain a copy of the Apache License Version 2.0 at http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the Apache License Version 2.0 is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the Apache License Version 2.0 for the specific language governing permissions and limitations there under.
 */
package org.asynchttpclient;

import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.server.handler.AbstractHandler;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

import static org.asynchttpclient.Dsl.asyncHttpClient;
import static org.asynchttpclient.Dsl.digestAuthRealm;
import static org.asynchttpclient.test.TestUtils.*;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertNotNull;

public class DigestAuthTest extends AbstractBasicTest {

  @BeforeClass(alwaysRun = true)
  @Override
  public void setUpGlobal() throws Exception {
    server = new Server();
    ServerConnector connector = addHttpConnector(server);
    addDigestAuthHandler(server, configureHandler());
    server.start();
    port1 = connector.getLocalPort();
    logger.info("Local HTTP server started successfully");
  }

  @Override
  public AbstractHandler configureHandler() throws Exception {
    return new SimpleHandler();
  }

  @Test
  public void digestAuthTest() throws IOException, ExecutionException, TimeoutException, InterruptedException {
    try (AsyncHttpClient client = asyncHttpClient()) {
      Future<Response> f = client.prepareGet("http://localhost:" + port1 + "/")
              .setRealm(digestAuthRealm(USER, ADMIN).setRealmName("MyRealm").build())
              .execute();
      Response resp = f.get(60, TimeUnit.SECONDS);
      assertNotNull(resp);
      assertEquals(resp.getStatusCode(), HttpServletResponse.SC_OK);
      assertNotNull(resp.getHeader("X-Auth"));
    }
  }

  @Test
  public void digestAuthTestWithoutScheme() throws IOException, ExecutionException, TimeoutException, InterruptedException {
    try (AsyncHttpClient client = asyncHttpClient()) {
      Future<Response> f = client.prepareGet("http://localhost:" + port1 + "/")
              .setRealm(digestAuthRealm(USER, ADMIN).setRealmName("MyRealm").build())
              .execute();
      Response resp = f.get(60, TimeUnit.SECONDS);
      assertNotNull(resp);
      assertEquals(resp.getStatusCode(), HttpServletResponse.SC_OK);
      assertNotNull(resp.getHeader("X-Auth"));
    }
  }

  @Test
  public void digestAuthNegativeTest() throws IOException, ExecutionException, TimeoutException, InterruptedException {
    try (AsyncHttpClient client = asyncHttpClient()) {
      Future<Response> f = client.prepareGet("http://localhost:" + port1 + "/")
              .setRealm(digestAuthRealm("fake", ADMIN).build())
              .execute();
      Response resp = f.get(20, TimeUnit.SECONDS);
      assertNotNull(resp);
      assertEquals(resp.getStatusCode(), 401);
    }
  }

  private static class SimpleHandler extends AbstractHandler {
    public void handle(String s, Request r, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
      response.addHeader("X-Auth", request.getHeader("Authorization"));
      response.setStatus(200);
      response.getOutputStream().flush();
      response.getOutputStream().close();
    }
  }
}