org.apache.jackrabbit.oak.security.authorization.permission.RepoPolicyTreePermission Maven / Gradle / Ivy
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* 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.security.authorization.permission;
import org.apache.jackrabbit.oak.api.PropertyState;
import org.apache.jackrabbit.oak.spi.security.authorization.permission.Permissions;
import org.apache.jackrabbit.oak.spi.security.authorization.permission.RepositoryPermission;
import org.apache.jackrabbit.oak.spi.security.authorization.permission.TreePermission;
import org.apache.jackrabbit.oak.spi.state.NodeState;
import org.jetbrains.annotations.NotNull;
/**
* {@code TreePermission} implementation for the access control policy coverying
* repository level permissions. In this implementation these permissions are
* managed in the policy tree defined at /rep:repoPolicy, which is considered
* protected access control content.
*
* This implementation relies on the precondition that the subtree defined by the
* /rep:repoPolicy node only consists of trees of type access control. Consequently,
* read access to trees and properties is granted if and only if {@link Permissions#READ_ACCESS_CONTROL}
* is granted at the repo-level.
*
* For the same reason any other permissions are evaluated by checking the
* {@link org.apache.jackrabbit.oak.spi.security.authorization.permission.RepositoryPermission},
* which apply for all items defined by this special subtree.
*/
final class RepoPolicyTreePermission implements TreePermission {
private RepositoryPermission repoPermission;
private ReadStatus readStatus;
RepoPolicyTreePermission(@NotNull RepositoryPermission repoPermission) {
this.repoPermission = repoPermission;
}
@NotNull
TreePermission getChildPermission() {
return this;
}
//-----------------------------------------------------< TreePermission >---
@NotNull
@Override
public TreePermission getChildPermission(@NotNull String childName, @NotNull NodeState childState) {
return getChildPermission();
}
@Override
public boolean canRead() {
return getReadStatus().allowsThis();
}
@Override
public boolean canRead(@NotNull PropertyState property) {
return getReadStatus().allowsThis();
}
@Override
public boolean canReadAll() {
return getReadStatus().allowsAll();
}
@Override
public boolean canReadProperties() {
return getReadStatus().allowsProperties();
}
@Override
public boolean isGranted(long permissions) {
return repoPermission.isGranted(permissions);
}
@Override
public boolean isGranted(long permissions, @NotNull PropertyState property) {
return repoPermission.isGranted(permissions);
}
@NotNull
private ReadStatus getReadStatus() {
if (readStatus == null) {
boolean canRead = repoPermission.isGranted(Permissions.READ_ACCESS_CONTROL);
readStatus = (canRead) ? ReadStatus.ALLOW_ALL : ReadStatus.DENY_ALL;
}
return readStatus;
}
}