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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 com.google.common.collect.ImmutableSet;
import org.apache.jackrabbit.JcrConstants;
import org.apache.jackrabbit.oak.api.CommitFailedException;
import org.apache.jackrabbit.oak.api.PropertyState;
import org.apache.jackrabbit.oak.api.Tree;
import org.apache.jackrabbit.oak.api.Type;
import org.apache.jackrabbit.oak.commons.PathUtils;
import org.apache.jackrabbit.oak.namepath.NamePathMapper;
import org.apache.jackrabbit.oak.plugins.nodetype.ReadOnlyNodeTypeManager;
import org.apache.jackrabbit.oak.plugins.version.ReadWriteVersionManager;
import org.apache.jackrabbit.oak.security.authorization.ProviderCtx;
import org.apache.jackrabbit.oak.spi.commit.CommitHook;
import org.apache.jackrabbit.oak.spi.commit.CommitInfo;
import org.apache.jackrabbit.oak.spi.nodetype.NodeTypeConstants;
import org.apache.jackrabbit.oak.spi.state.DefaultNodeStateDiff;
import org.apache.jackrabbit.oak.spi.state.NodeBuilder;
import org.apache.jackrabbit.oak.spi.state.NodeState;
import org.apache.jackrabbit.oak.spi.state.NodeStateUtils;
import org.apache.jackrabbit.oak.spi.version.VersionConstants;
import org.jetbrains.annotations.NotNull;
import java.util.Collections;
import static org.apache.jackrabbit.oak.plugins.memory.EmptyNodeState.EMPTY_NODE;
/**
* Commit hook which is responsible for storing the path of the versionable
* node with every version history. This includes creating the path property
* for every workspace the version history is represented and updating the
* path upon moving around a versionable node.
*/
public class VersionablePathHook implements CommitHook {
private final String workspaceName;
private final ProviderCtx providerCtx;
public VersionablePathHook(@NotNull String workspaceName, @NotNull ProviderCtx providerCtx) {
this.workspaceName = workspaceName;
this.providerCtx = providerCtx;
}
@NotNull
@Override
public NodeState processCommit(
NodeState before, NodeState after, CommitInfo info)
throws CommitFailedException {
NodeBuilder rootBuilder = after.builder();
NodeBuilder vsRoot = rootBuilder.child(NodeTypeConstants.JCR_SYSTEM).child(NodeTypeConstants.JCR_VERSIONSTORAGE);
ReadWriteVersionManager vMgr = new ReadWriteVersionManager(vsRoot, rootBuilder);
ReadOnlyNodeTypeManager ntMgr = ReadOnlyNodeTypeManager.getInstance(providerCtx.getRootProvider().createReadOnlyRoot(rootBuilder.getNodeState()), NamePathMapper.DEFAULT);
after.compareAgainstBaseState(before, new Diff(vMgr, ntMgr, new Node(rootBuilder)));
return rootBuilder.getNodeState();
}
@Override
public String toString() {
return "VersionablePathHook : workspaceName = " + workspaceName;
}
private final class Diff extends DefaultNodeStateDiff implements VersionConstants {
private final ReadWriteVersionManager versionManager;
private final ReadOnlyNodeTypeManager ntMgr;
private final Node nodeAfter;
private Diff(@NotNull ReadWriteVersionManager versionManager,
@NotNull ReadOnlyNodeTypeManager ntMgr,
@NotNull Node node) {
this.versionManager = versionManager;
this.ntMgr = ntMgr;
this.nodeAfter = node;
}
@Override
public boolean propertyAdded(PropertyState after) {
return setVersionablePath(after);
}
@Override
public boolean propertyChanged(PropertyState before, PropertyState after) {
return setVersionablePath(after);
}
@Override
public boolean childNodeAdded(String name, NodeState after) {
return childNodeChanged(name, EMPTY_NODE, after);
}
@Override
public boolean childNodeChanged(
String name, NodeState before, NodeState after) {
if (NodeStateUtils.isHidden(name)) {
// do not traverse into hidden trees
return true;
}
Node node = new Node(nodeAfter, name);
return after.compareAgainstBaseState(
before, new Diff(versionManager, ntMgr, node));
}
private boolean setVersionablePath(@NotNull PropertyState after) {
if (JcrConstants.JCR_VERSIONHISTORY.equals(after.getName()) && nodeAfter.isVersionable(ntMgr)) {
NodeBuilder vhBuilder = versionManager.getOrCreateVersionHistory(nodeAfter.builder, Collections.emptyMap());
if (!vhBuilder.hasProperty(JcrConstants.JCR_MIXINTYPES)) {
vhBuilder.setProperty(
JcrConstants.JCR_MIXINTYPES,
ImmutableSet.of(MIX_REP_VERSIONABLE_PATHS),
Type.NAMES);
}
String versionablePath = nodeAfter.path;
vhBuilder.setProperty(workspaceName, versionablePath, Type.PATH);
}
return true;
}
}
private final class Node {
private final String path;
private final NodeBuilder builder;
private Node(@NotNull NodeBuilder rootBuilder) {
this.path = "/";
this.builder = rootBuilder;
}
private Node(@NotNull Node parent, @NotNull String name) {
this.builder = parent.builder.child(name);
this.path = PathUtils.concat(parent.path, name);
}
private boolean isVersionable(@NotNull ReadOnlyNodeTypeManager ntMgr) {
// this is not 100% correct, because t.getPath() will
// not return the correct path for node after, but is
// sufficient to check if it is versionable
Tree tree = providerCtx.getTreeProvider().createReadOnlyTree(builder.getNodeState());
return ntMgr.isNodeType(tree, VersionConstants.MIX_VERSIONABLE);
}
}
}
