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.core.auth;
  
  import com.alibaba.nacos.api.exception.runtime.NacosRuntimeException;
  import com.alibaba.nacos.auth.config.AuthErrorCode;
  import com.alibaba.nacos.auth.config.NacosAuthConfig;
  import com.alibaba.nacos.common.utils.StringUtils;
  import com.alibaba.nacos.core.config.AbstractDynamicConfig;
  import com.alibaba.nacos.plugin.auth.constant.ApiType;
  import com.alibaba.nacos.plugin.auth.constant.Constants;
  import com.alibaba.nacos.sys.env.EnvUtil;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Nacos Server auth configurations.
   *
   * @author xiweng.yy
   */
  public class NacosServerAdminAuthConfig extends AbstractDynamicConfig implements NacosAuthConfig {
      
      private static final Logger LOGGER = LoggerFactory.getLogger(NacosServerAdminAuthConfig.class);
      
      public static final String NACOS_SERVER_ADMIN_AUTH_SCOPE = ApiType.ADMIN_API.name();
      
      /**
       * Whether server auth enabled.
       */
      private boolean authEnabled;
      
      /**
       * Which auth system is in use.
       */
      private String nacosAuthSystemType;
      
      private String serverIdentityKey;
      
      private String serverIdentityValue;
      
      public NacosServerAdminAuthConfig() {
          super("NacosServerAdminAuth");
          resetConfig();
          validate();
      }
      
      /**
       * Validate auth config.
       */
      private void validate() {
          if (!authEnabled) {
              return;
          }
          if (StringUtils.isEmpty(nacosAuthSystemType)) {
              throw new NacosRuntimeException(AuthErrorCode.INVALID_TYPE.getCode(), AuthErrorCode.INVALID_TYPE.getMsg());
          }
          if (StringUtils.isEmpty(serverIdentityKey) || StringUtils.isEmpty(serverIdentityValue)) {
              throw new NacosRuntimeException(AuthErrorCode.EMPTY_IDENTITY.getCode(),
                      AuthErrorCode.EMPTY_IDENTITY.getMsg());
          }
      }
      
      @Override
      public String getAuthScope() {
          return NACOS_SERVER_ADMIN_AUTH_SCOPE;
      }
      
      /**
       * server auth function is open.
       *
       * @return server auth function is open
       */
      @Override
      public boolean isAuthEnabled() {
          return authEnabled;
      }
      
      @Override
      public String getNacosAuthSystemType() {
          return nacosAuthSystemType;
      }
      
      @Override
      public boolean isSupportServerIdentity() {
          return true;
      }
      
      @Override
      public String getServerIdentityKey() {
          return serverIdentityKey;
      }
      
      @Override
      public String getServerIdentityValue() {
          return serverIdentityValue;
      }
      
      @Override
      protected void getConfigFromEnv() {
          try {
              authEnabled = EnvUtil.getProperty(Constants.Auth.NACOS_CORE_AUTH_ADMIN_ENABLED, Boolean.class, true);
              nacosAuthSystemType = EnvUtil.getProperty(Constants.Auth.NACOS_CORE_AUTH_SYSTEM_TYPE, "");
              serverIdentityKey = EnvUtil.getProperty(Constants.Auth.NACOS_CORE_AUTH_SERVER_IDENTITY_KEY, "");
              serverIdentityValue = EnvUtil.getProperty(Constants.Auth.NACOS_CORE_AUTH_SERVER_IDENTITY_VALUE, "");
          } catch (Exception e) {
              LOGGER.warn("Upgrade auth config from env failed, use old value", e);
          }
      }
      
      @Override
      protected String printConfig() {
          return toString();
      }
      
      @Override
      public String toString() {
          return "NacosServerAdminAuthConfig{" + "authEnabled=" + authEnabled + ", nacosAuthSystemType='"
                  + nacosAuthSystemType + '\'' + ", serverIdentityKey='" + serverIdentityKey + '\''
                  + ", serverIdentityValue='" + serverIdentityValue + '\'' + '}';
      }
  }
  