content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.ambari.server.api;
  
  import static org.easymock.EasyMock.capture;
  import static org.easymock.EasyMock.eq;
  import static org.easymock.EasyMock.expect;
  import static org.easymock.EasyMock.expectLastCall;
  import static org.junit.Assert.assertEquals;
  import static org.powermock.api.easymock.PowerMock.mockStatic;
  
  import java.io.IOException;
  import java.io.PrintWriter;
  import java.io.StringWriter;
  import java.util.UUID;
  
  import jakarta.servlet.RequestDispatcher;
  import jakarta.servlet.http.HttpServletRequest;
  import jakarta.servlet.http.HttpServletResponse;
  
  import org.apache.ambari.server.security.authentication.jwt.JwtAuthenticationPropertiesProvider;
  import org.apache.http.HttpStatus;
  import org.easymock.Capture;
  import org.easymock.EasyMock;
  import org.easymock.EasyMockSupport;
  import org.eclipse.jetty.server.HttpChannel;
  import org.eclipse.jetty.server.HttpConnection;
  import org.eclipse.jetty.server.Request;
  import org.eclipse.jetty.server.Response;
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.powermock.core.classloader.annotations.PrepareForTest;
  import org.powermock.modules.junit4.PowerMockRunner;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.google.gson.Gson;
  
  @RunWith(PowerMockRunner.class)
  @PrepareForTest({AmbariErrorHandler.class, LoggerFactory.class, HttpConnection.class, UUID.class})
  public class AmbariErrorHandlerTest extends EasyMockSupport {
    private Gson gson = new Gson();
  
    private Logger logger = createNiceMock(Logger.class);
  
    private HttpConnection httpConnection = createNiceMock(HttpConnection.class);
    private HttpChannel httpChannel = createNiceMock(HttpChannel.class);
  
    private Response response = createNiceMock(Response.class);
    private Request request = createNiceMock(Request.class);
  
    private HttpServletResponse httpServletResponse = createNiceMock(HttpServletResponse.class);
    private HttpServletRequest httpServletRequest = createNiceMock(HttpServletRequest.class);
  
    private JwtAuthenticationPropertiesProvider propertiesProvider = createNiceMock(JwtAuthenticationPropertiesProvider.class);
  
    final String target = "target";
  
    @Test
    public void testHandleInternalServerError() throws IOException {
      //given
      final UUID requestId = UUID.fromString("4db659b2-7902-477b-b8e6-c35261d3334a");
  
      mockStatic(HttpConnection.class);
      mockStatic(UUID.class);
      mockStatic(LoggerFactory.class);
      expect(HttpConnection.getCurrentConnection()).andReturn(httpConnection);
      expect(UUID.randomUUID()).andReturn(requestId);
      expect(LoggerFactory.getLogger(AmbariErrorHandler.class)).andReturn(logger);
  
      Throwable th = createNiceMock(Throwable.class);
  
      Capture<String> captureLogMessage = EasyMock.newCapture();
      logger.error(capture(captureLogMessage), eq(th));
      expectLastCall().anyTimes();
  
      expect(httpConnection.getHttpChannel()).andReturn(httpChannel);
      expect(httpChannel.getRequest()).andReturn(request);
      expect(httpChannel.getResponse()).andReturn(response).times(2);
      expect(response.getStatus()).andReturn(HttpStatus.SC_INTERNAL_SERVER_ERROR);
  
      final String requestUri = "/path/to/target";
      expect(httpServletRequest.getRequestURI()).andReturn(requestUri);
      expect(httpServletRequest.getAttribute(RequestDispatcher.ERROR_EXCEPTION)).andReturn(th);
  
      final StringWriter writer = new StringWriter();
      expect(httpServletResponse.getWriter()).andReturn(new PrintWriter(writer));
  
      expect(propertiesProvider.get()).andReturn(null).anyTimes();
  
      replayAll();
  
      final String expectedResponse = "{\"status\":500,\"message\":\"Internal server error, please refer the exception by " + requestId + " in the server log file\"}";
      final String expectedErrorMessage = "Internal server error, please refer the exception by " + requestId + " in the server log file, requestURI: " + requestUri;
  
      AmbariErrorHandler ambariErrorHandler = new AmbariErrorHandler(gson, propertiesProvider);
      ambariErrorHandler.setShowStacks(false);
  
      //when
      ambariErrorHandler.handle(target, request, httpServletRequest, httpServletResponse);
  
      //then
      assertEquals(expectedResponse, writer.toString());
      assertEquals(expectedErrorMessage, captureLogMessage.getValue());
      verifyAll();
    }
  
    @Test
    public void testHandleGeneralError() throws Exception {
  
      //given
      mockStatic(HttpConnection.class);
      expect(HttpConnection.getCurrentConnection()).andReturn(httpConnection);
  
      expect(httpConnection.getHttpChannel()).andReturn(httpChannel);
      expect(httpChannel.getRequest()).andReturn(request);
      expect(httpChannel.getResponse()).andReturn(response).anyTimes();
      expect(response.getStatus()).andReturn(HttpStatus.SC_BAD_REQUEST);
  
      final StringWriter writer = new StringWriter();
      expect(httpServletResponse.getWriter()).andReturn(new PrintWriter(writer));
  
      expect(propertiesProvider.get()).andReturn(null).anyTimes();
  
      replayAll();
  
      final String expectedResponse = "{\"status\":400,\"message\":\"Bad Request\"}";
  
      AmbariErrorHandler ambariErrorHandler = new AmbariErrorHandler(gson, propertiesProvider);
  
      //when
      ambariErrorHandler.handle(target, request, httpServletRequest, httpServletResponse);
      System.out.println(writer.toString());
  
      //then
      assertEquals(expectedResponse, writer.toString());
      verifyAll();
    }
  }
  