content: /*
   * Copyright 1999-2023 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.naming.paramcheck;
  
  import com.alibaba.nacos.api.common.Constants;
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.common.paramcheck.ParamInfo;
  import com.alibaba.nacos.common.utils.StringUtils;
  import com.alibaba.nacos.core.paramcheck.AbstractHttpParamExtractor;
  import com.alibaba.nacos.naming.misc.UtilsAndCommons;
  
  import jakarta.servlet.http.HttpServletRequest;
  import java.util.ArrayList;
  import java.util.List;
  
  /**
   * Naming default http param extractor.
   *
   * @author zhuoguang
   */
  public class NamingDefaultHttpParamExtractor extends AbstractHttpParamExtractor {
      
      @Override
      public List<ParamInfo> extractParam(HttpServletRequest request) throws NacosException {
          ParamInfo paramInfo = new ParamInfo();
          paramInfo.setIp(getAliasIp(request));
          paramInfo.setPort(getAliasPort(request));
          paramInfo.setNamespaceId(getAliasNamespaceId(request));
          paramInfo.setCluster(getAliasClusterName(request));
          String serviceName = getAliasServiceName(request);
          String groupName = getAliasGroupName(request);
          String groupServiceName = serviceName;
          if (StringUtils.isNotBlank(groupServiceName) && groupServiceName.contains(Constants.SERVICE_INFO_SPLITER)) {
              String[] splits = groupServiceName.split(Constants.SERVICE_INFO_SPLITER, 2);
              groupName = splits[0];
              serviceName = splits[1];
          }
          paramInfo.setServiceName(serviceName);
          paramInfo.setGroup(groupName);
          paramInfo.setMetadata(UtilsAndCommons.parseMetadata(request.getParameter("metadata")));
          ArrayList<ParamInfo> paramInfos = new ArrayList<>();
          paramInfos.add(paramInfo);
          return paramInfos;
      }
      
      private String getAliasNamespaceId(HttpServletRequest request) {
          String namespaceid = request.getParameter("namespaceId");
          return namespaceid;
      }
      
      private String getAliasIp(HttpServletRequest request) {
          String ip = request.getParameter("ip");
          return ip;
      }
      
      private String getAliasPort(HttpServletRequest request) {
          String port = request.getParameter("port");
          if (StringUtils.isBlank(port)) {
              port = request.getParameter("checkPort");
          }
          return port;
      }
      
      private String getAliasServiceName(HttpServletRequest request) {
          String serviceName = request.getParameter("serviceName");
          if (StringUtils.isBlank(serviceName)) {
              serviceName = request.getParameter("serviceNameParam");
          }
          return serviceName;
      }
      
      private String getAliasGroupName(HttpServletRequest request) {
          String groupName = request.getParameter("groupName");
          if (StringUtils.isBlank(groupName)) {
              groupName = request.getParameter("groupNameParam");
          }
          return groupName;
      }
      
      private String getAliasClusterName(HttpServletRequest request) {
          String clusterName = request.getParameter("clusterName");
          if (StringUtils.isBlank(clusterName)) {
              clusterName = request.getParameter("cluster");
          } else if (StringUtils.isBlank(clusterName)) {
              clusterName = request.getParameter("clusters");
          }
          return clusterName;
      }
  }
  