org.apache.jackrabbit.oak.security.authorization.accesscontrol.Util 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.accesscontrol;
import java.security.Principal;
import java.util.Set;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import javax.jcr.security.AccessControlException;
import javax.jcr.security.AccessControlPolicy;
import org.apache.jackrabbit.api.security.principal.PrincipalManager;
import org.apache.jackrabbit.oak.api.Tree;
import org.apache.jackrabbit.oak.plugins.nodetype.ReadOnlyNodeTypeManager;
import org.apache.jackrabbit.oak.spi.security.authorization.AuthorizationConfiguration;
import org.apache.jackrabbit.oak.spi.security.authorization.accesscontrol.ACE;
import org.apache.jackrabbit.oak.spi.security.authorization.accesscontrol.AccessControlConstants;
import org.apache.jackrabbit.oak.spi.security.principal.PrincipalImpl;
import org.apache.jackrabbit.oak.spi.xml.ImportBehavior;
import org.apache.jackrabbit.oak.spi.xml.ProtectedItemImporter;
/**
* Implementation specific access control utility methods
*/
final class Util implements AccessControlConstants {
/**
* Private constructor to avoid instantiation
*/
private Util() {}
public static void checkValidPrincipal(@Nullable Principal principal,
@Nonnull PrincipalManager principalManager) throws AccessControlException {
checkValidPrincipal(principal, principalManager, ImportBehavior.ABORT);
}
public static boolean checkValidPrincipal(@Nullable Principal principal,
@Nonnull PrincipalManager principalManager,
int importBehavior) throws AccessControlException {
String name = (principal == null) ? null : principal.getName();
if (name == null || name.isEmpty()) {
throw new AccessControlException("Invalid principal " + name);
}
if (!(principal instanceof PrincipalImpl) && !principalManager.hasPrincipal(name)) {
switch (importBehavior) {
case ImportBehavior.ABORT:
throw new AccessControlException("Unknown principal " + name);
case ImportBehavior.IGNORE:
return false;
case ImportBehavior.BESTEFFORT:
return true;
default: throw new IllegalArgumentException("Invalid import behavior " + importBehavior);
}
}
return true;
}
public static void checkValidPrincipals(@Nullable Set principals,
@Nonnull PrincipalManager principalManager) throws AccessControlException {
if (principals == null) {
throw new AccessControlException("Valid principals expected. Found null.");
}
for (Principal principal : principals) {
checkValidPrincipal(principal, principalManager);
}
}
public static boolean isValidPolicy(@Nullable String oakPath, @Nonnull AccessControlPolicy policy) {
if (policy instanceof ACL) {
String path = ((ACL) policy).getOakPath();
return !((path == null && oakPath != null) || (path != null && !path.equals(oakPath)));
}
return false;
}
public static void checkValidPolicy(@Nullable String oakPath, @Nonnull AccessControlPolicy policy) throws AccessControlException {
if (!isValidPolicy(oakPath, policy)) {
throw new AccessControlException("Invalid access control policy " + policy);
}
}
public static boolean isAccessControlled(@Nullable String oakPath, @Nonnull Tree tree,
@Nonnull ReadOnlyNodeTypeManager ntMgr) {
String mixinName = getMixinName(oakPath);
return ntMgr.isNodeType(tree, mixinName);
}
public static boolean isACE(@Nonnull Tree tree, @Nonnull ReadOnlyNodeTypeManager ntMgr) {
return tree.exists() && ntMgr.isNodeType(tree, NT_REP_ACE);
}
@Nonnull
public static String getMixinName(@Nullable String oakPath) {
return (oakPath == null) ? MIX_REP_REPO_ACCESS_CONTROLLABLE : MIX_REP_ACCESS_CONTROLLABLE;
}
@Nonnull
public static String getAclName(@Nullable String oakPath) {
return (oakPath == null) ? REP_REPO_POLICY : REP_POLICY;
}
/**
* Create a valid name for the ACE node based on the entry and it's index.
*
* @param ace The access control entry.
* @param index The index of the entry in the list
* @return the name of the ACE node.
*/
@Nonnull
public static String generateAceName(@Nonnull ACE ace, int index) {
String hint = (ace.isAllow()) ? "allow" : "deny";
if (index == 0) {
return hint;
} else {
return hint + index;
}
}
public static int getImportBehavior(AuthorizationConfiguration config) {
String importBehaviorStr = config.getParameters().getConfigValue(ProtectedItemImporter.PARAM_IMPORT_BEHAVIOR, ImportBehavior.NAME_ABORT);
return ImportBehavior.valueFromString(importBehaviorStr);
}
}