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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.restriction;
import static org.apache.jackrabbit.oak.spi.security.RegistrationConstants.OAK_SECURITY_NAME;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.jcr.security.AccessControlException;
import org.apache.jackrabbit.guava.common.collect.ImmutableMap;
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.spi.security.authorization.restriction.AbstractRestrictionProvider;
import org.apache.jackrabbit.oak.spi.security.authorization.restriction.CompositePattern;
import org.apache.jackrabbit.oak.spi.security.authorization.restriction.Restriction;
import org.apache.jackrabbit.oak.spi.security.authorization.restriction.RestrictionDefinition;
import org.apache.jackrabbit.oak.spi.security.authorization.restriction.RestrictionDefinitionImpl;
import org.apache.jackrabbit.oak.spi.security.authorization.restriction.RestrictionPattern;
import org.apache.jackrabbit.oak.spi.security.authorization.restriction.RestrictionProvider;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.osgi.service.component.annotations.Component;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Default restriction provider implementation that supports the following
* restrictions:
*
*
*
{@link #REP_GLOB}: A simple paths matching pattern. See {@link GlobPattern}
* for details.
*
{@link #REP_NT_NAMES}: A restriction that allows to limit the effect
* of a given access control entries to JCR nodes of any of the specified
* primary node type. In case of a JCR property the primary type of the
* parent node is taken into consideration when evaluating the permissions.
*
{@link #REP_PREFIXES}: A multivalued access control restriction
* which matches by name space prefix. The corresponding restriction type
* is {@link org.apache.jackrabbit.oak.api.Type#STRINGS}.
*
*/
@Component(
service = RestrictionProvider.class,
property = OAK_SECURITY_NAME + "=org.apache.jackrabbit.oak.security.authorization.restriction.RestrictionProviderImpl")
public class RestrictionProviderImpl extends AbstractRestrictionProvider {
private static final Logger log = LoggerFactory.getLogger(RestrictionProviderImpl.class);
private static final Map DEFINITIONS = ImmutableMap.builder()
.put(REP_GLOB, new RestrictionDefinitionImpl(REP_GLOB, Type.STRING, false))
.put(REP_NT_NAMES, new RestrictionDefinitionImpl(REP_NT_NAMES, Type.NAMES, false))
.put(REP_PREFIXES, new RestrictionDefinitionImpl(REP_PREFIXES, Type.STRINGS, false))
.put(REP_ITEM_NAMES, new RestrictionDefinitionImpl(REP_ITEM_NAMES, Type.NAMES, false))
.put(REP_CURRENT, new RestrictionDefinitionImpl(REP_CURRENT, Type.STRINGS, false))
.put(REP_GLOBS, new RestrictionDefinitionImpl(REP_GLOBS, Type.STRINGS, false))
.put(REP_SUBTREES, new RestrictionDefinitionImpl(REP_SUBTREES, Type.STRINGS, false)).build();
public RestrictionProviderImpl() {
super(DEFINITIONS);
}
//------------------------------------------------< RestrictionProvider >---
@NotNull
@Override
public RestrictionPattern getPattern(@Nullable String oakPath, @NotNull Tree tree) {
if (oakPath == null) {
return RestrictionPattern.EMPTY;
} else {
List patterns = new ArrayList<>(DEFINITIONS.size());
PropertyState glob = tree.getProperty(REP_GLOB);
if (glob != null) {
patterns.add(GlobPattern.create(oakPath, glob.getValue(Type.STRING)));
}
for (String name : new String[] {REP_NT_NAMES, REP_ITEM_NAMES}) {
PropertyState ps = tree.getProperty(name);
if (ps != null) {
patterns.add(createPattern(oakPath, name, ps.getValue(Type.NAMES)));
}
}
for (String name : new String[] {REP_PREFIXES, REP_CURRENT, REP_GLOBS, REP_SUBTREES}) {
PropertyState ps = tree.getProperty(name);
if (ps != null) {
patterns.add(createPattern(oakPath, name, ps.getValue(Type.STRINGS)));
}
}
return CompositePattern.create(patterns);
}
}
private static RestrictionPattern createPattern(@NotNull String path, @NotNull String name, @NotNull Iterable values) {
switch (name) {
case REP_ITEM_NAMES: return new ItemNamePattern(values);
case REP_NT_NAMES: return new NodeTypePattern(values);
case REP_PREFIXES: return new PrefixPattern(values);
case REP_CURRENT: return new CurrentPattern(path, values);
case REP_GLOBS: return new GlobsPattern(path, values);
case REP_SUBTREES: return new SubtreePattern(path, values);
default: {
log.debug("Ignoring unsupported restriction {} at {}", name, path);
return RestrictionPattern.EMPTY;
}
}
}
@NotNull
@Override
public RestrictionPattern getPattern(@Nullable String oakPath, @NotNull Set restrictions) {
if (oakPath == null || restrictions.isEmpty()) {
return RestrictionPattern.EMPTY;
} else {
List patterns = new ArrayList<>(DEFINITIONS.size());
for (Restriction r : restrictions) {
String name = r.getDefinition().getName();
if (REP_GLOB.equals(name)) {
patterns.add(GlobPattern.create(oakPath, r.getProperty().getValue(Type.STRING)));
} else if (REP_NT_NAMES.equals(name) || REP_ITEM_NAMES.equals(name)) {
patterns.add(createPattern(oakPath, name, r.getProperty().getValue(Type.NAMES)));
} else {
patterns.add(createPattern(oakPath, name, r.getProperty().getValue(Type.STRINGS)));
}
}
return CompositePattern.create(patterns);
}
}
@Override
public void validateRestrictions(@Nullable String oakPath, @NotNull Tree aceTree) throws AccessControlException {
super.validateRestrictions(oakPath, aceTree);
Tree restrictionsTree = getRestrictionsTree(aceTree);
PropertyState glob = restrictionsTree.getProperty(REP_GLOB);
if (glob != null) {
GlobPattern.validate(glob.getValue(Type.STRING));
}
PropertyState globs = restrictionsTree.getProperty(REP_GLOBS);
if (globs != null) {
for (String v : globs.getValue(Type.STRINGS)) {
GlobPattern.validate(v);
}
}
}
}
