| /* |
| * 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.jackrabbit.oak.jcr.delegate; |
| |
| import static com.google.common.base.Preconditions.checkArgument; |
| |
| import java.security.Principal; |
| |
| import javax.jcr.RepositoryException; |
| import javax.security.auth.Subject; |
| |
| import org.apache.jackrabbit.api.security.principal.PrincipalIterator; |
| import org.apache.jackrabbit.api.security.user.Impersonation; |
| import org.apache.jackrabbit.oak.jcr.session.operation.SessionOperation; |
| import org.jetbrains.annotations.NotNull; |
| |
| /** |
| * This implementation of {@code Impersonation} delegates back to a |
| * delegatee wrapping each call into a {@link SessionOperation} closure. |
| * |
| * @see SessionDelegate#perform(SessionOperation) |
| */ |
| final class ImpersonationDelegator implements Impersonation { |
| private final SessionDelegate sessionDelegate; |
| private final Impersonation impersonationDelegate; |
| |
| private ImpersonationDelegator(SessionDelegate sessionDelegate, Impersonation impersonationDelegate) { |
| checkArgument(!(impersonationDelegate instanceof ImpersonationDelegator)); |
| this.sessionDelegate = sessionDelegate; |
| this.impersonationDelegate = impersonationDelegate; |
| } |
| |
| static Impersonation wrap(SessionDelegate sessionDelegate, Impersonation impersonation) { |
| if (impersonation == null) { |
| return null; |
| } else { |
| return new ImpersonationDelegator(sessionDelegate, impersonation); |
| } |
| } |
| |
| @Override |
| public PrincipalIterator getImpersonators() throws RepositoryException { |
| return sessionDelegate.perform(new SessionOperation<PrincipalIterator>("getImpersonators") { |
| @NotNull |
| @Override |
| public PrincipalIterator perform() throws RepositoryException { |
| return impersonationDelegate.getImpersonators(); |
| } |
| }); |
| } |
| |
| @Override |
| public boolean grantImpersonation(final Principal principal) throws RepositoryException { |
| return sessionDelegate.perform(new SessionOperation<Boolean>("grantImpersonation", true) { |
| @NotNull |
| @Override |
| public Boolean perform() throws RepositoryException { |
| return impersonationDelegate.grantImpersonation(principal); |
| } |
| }); |
| } |
| |
| @Override |
| public boolean revokeImpersonation(final Principal principal) throws RepositoryException { |
| return sessionDelegate.perform(new SessionOperation<Boolean>("revokeImpersonation", true) { |
| @NotNull |
| @Override |
| public Boolean perform() throws RepositoryException { |
| return impersonationDelegate.revokeImpersonation(principal); |
| } |
| }); |
| } |
| |
| @Override |
| public boolean allows(final Subject subject) throws RepositoryException { |
| return sessionDelegate.perform(new SessionOperation<Boolean>("allows") { |
| @NotNull |
| @Override |
| public Boolean perform() throws RepositoryException { |
| return impersonationDelegate.allows(subject); |
| } |
| }); |
| } |
| } |