content: /*
   * Copyright 2017-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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 org.activiti.cloud.security.authorization;
  
  import java.util.Set;
  import java.util.function.Supplier;
  import java.util.stream.Collectors;
  import java.util.stream.Stream;
  import org.springframework.security.authorization.AuthorizationDecision;
  import org.springframework.security.authorization.AuthorizationManager;
  import org.springframework.security.core.Authentication;
  import org.springframework.security.core.GrantedAuthority;
  
  public class CustomAuthorizationManager<RequestAuthorizationContext>
      implements AuthorizationManager<RequestAuthorizationContext> {
  
      public static final String ROLE_PREFIX = "ROLE_";
      public static final String PERMISSION_PREFIX = "PERMISSION_";
      public static final String SCOPE_PREFIX = "SCOPE_";
  
      private final Set<String> authoritiesWithAccess;
  
      public CustomAuthorizationManager(String[] roles, String[] permissions) {
          this.authoritiesWithAccess =
              Stream
                  .concat(
                      Stream.of(roles).map(role -> ROLE_PREFIX + role),
                      Stream.of(permissions).map(permission -> PERMISSION_PREFIX + permission)
                  )
                  .collect(Collectors.toSet());
      }
  
      @Override
      public AuthorizationDecision check(Supplier<Authentication> authentication, RequestAuthorizationContext object) {
          return new AuthorizationDecision(
              authentication
                  .get()
                  .getAuthorities()
                  .stream()
                  .map(GrantedAuthority::getAuthority)
                  .anyMatch(authoritiesWithAccess::contains)
          );
      }
  
      public Set<String> getAuthoritiesWithAccess() {
          return authoritiesWithAccess;
      }
  }
  