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.camel.quarkus.test;
  
  import java.security.Provider;
  import java.security.Security;
  import java.util.Collections;
  import java.util.List;
  import java.util.Optional;
  
  public class FipsModeUtil {
  
      private FipsModeUtil() {
      }
  
      /**
       * Returns null if system is not in fips mode.
       * Returns Optional.empty if system is in fips mode and there is some provider containing "fips"
       * Returns Optional.name if system is in fips mode and there is a match with the provided providers
       * (the last 2 options allows differentiate reason of the enablement/disablement)
       */
      static public Optional<String> findFipsProvider(List<String> providersToMatch) {
          Provider[] jdkProviders = Security.getProviders();
          int matchCount = 0;
  
          for (Provider provider : jdkProviders) {
              if (providersToMatch.isEmpty() && provider.getName().toLowerCase().contains("fips")) {
                  return Optional.of(provider.getName());
              } else if (providersToMatch.contains(provider.getName())) {
                  matchCount++;
              }
          }
  
          if (!providersToMatch.isEmpty() && matchCount == providersToMatch.size()) {
              return Optional.empty();
          }
  
          return null;
      }
  
      /**
       * Return true if system is in FIPS mode.
       */
      static public boolean isFipsMode() {
          return findFipsProvider(Collections.emptyList()) != null;
      }
  }
  