content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.nacos.config.server.utils;
  
  import com.alibaba.nacos.api.common.Constants;
  import com.alibaba.nacos.core.context.RequestContextHolder;
  import com.alibaba.nacos.plugin.auth.api.IdentityContext;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.Test;
  import org.mockito.Mockito;
  
  import jakarta.servlet.http.HttpServletRequest;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.mockito.ArgumentMatchers.eq;
  
  class RequestUtilTest {
      
      private static final String X_REAL_IP = "X-Real-IP";
      
      private static final String X_FORWARDED_FOR = "X-Forwarded-For";
      
      @AfterEach
      void tearDown() {
          RequestContextHolder.removeContext();
      }
      
      @Test
      void testGetRemoteIpFromRequest() {
          HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
          
          Mockito.when(request.getRemoteAddr()).thenReturn("127.0.0.1");
          assertEquals("127.0.0.1", RequestUtil.getRemoteIp(request));
          
          Mockito.when(request.getHeader(eq(X_REAL_IP))).thenReturn("127.0.0.2");
          assertEquals("127.0.0.2", RequestUtil.getRemoteIp(request));
          
          Mockito.when(request.getHeader(eq(X_FORWARDED_FOR))).thenReturn("127.0.0.3");
          assertEquals("127.0.0.3", RequestUtil.getRemoteIp(request));
          
          Mockito.when(request.getHeader(eq(X_FORWARDED_FOR))).thenReturn("127.0.0.3, 127.0.0.4");
          assertEquals("127.0.0.3", RequestUtil.getRemoteIp(request));
          
          Mockito.when(request.getHeader(eq(X_FORWARDED_FOR))).thenReturn("");
          assertEquals("127.0.0.2", RequestUtil.getRemoteIp(request));
          
          Mockito.when(request.getHeader(eq(X_REAL_IP))).thenReturn("");
          assertEquals("127.0.0.1", RequestUtil.getRemoteIp(request));
      }
      
      @Test
      void testGetAppNameFromContext() {
          RequestContextHolder.getContext().getBasicContext().setApp("contextApp");
          HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
          Mockito.when(request.getHeader(eq(RequestUtil.CLIENT_APPNAME_HEADER))).thenReturn("test");
          assertEquals("contextApp", RequestUtil.getAppName(request));
      }
      
      @Test
      void testGetAppNameFromRequest() {
          HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
          Mockito.when(request.getHeader(eq(RequestUtil.CLIENT_APPNAME_HEADER))).thenReturn("test");
          assertEquals("test", RequestUtil.getAppName(request));
      }
      
      @Test
      void testGetSrcUserNameFromContext() {
          IdentityContext identityContext = new IdentityContext();
          identityContext.setParameter(com.alibaba.nacos.plugin.auth.constant.Constants.Identity.IDENTITY_ID, "test");
          RequestContextHolder.getContext().getAuthContext().setIdentityContext(identityContext);
          HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
          assertEquals("test", RequestUtil.getSrcUserName(request));
      }
      
      @Test
      void testGetSrcUserNameFromRequest() {
          HttpServletRequest request = Mockito.mock(HttpServletRequest.class);
          Mockito.when(request.getParameter(eq(Constants.USERNAME))).thenReturn("parameterName");
          assertEquals("parameterName", RequestUtil.getSrcUserName(request));
      }
  }
  