org.apache.hudi.org.apache.hadoop.hbase.security.access.CoprocessorWhitelistMasterObserver Maven / Gradle / Ivy
/*
* 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.hadoop.hbase.security.access;
import java.io.IOException;
import java.util.Collection;
import java.util.Optional;
import org.apache.commons.io.FilenameUtils;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.hbase.HBaseInterfaceAudience;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.CoprocessorDescriptor;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.TableDescriptor;
import org.apache.hadoop.hbase.coprocessor.MasterCoprocessor;
import org.apache.hadoop.hbase.coprocessor.MasterCoprocessorEnvironment;
import org.apache.hadoop.hbase.coprocessor.MasterObserver;
import org.apache.hadoop.hbase.coprocessor.ObserverContext;
import org.apache.yetus.audience.InterfaceAudience;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Master observer for restricting coprocessor assignments.
*/
@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.CONFIG)
public class CoprocessorWhitelistMasterObserver implements MasterCoprocessor, MasterObserver {
public static final String CP_COPROCESSOR_WHITELIST_PATHS_KEY =
"hbase.coprocessor.region.whitelist.paths";
private static final Logger LOG = LoggerFactory
.getLogger(CoprocessorWhitelistMasterObserver.class);
@Override
public Optional getMasterObserver() {
return Optional.of(this);
}
@Override
public TableDescriptor preModifyTable(ObserverContext ctx,
TableName tableName, TableDescriptor currentDesc, TableDescriptor newDesc)
throws IOException {
verifyCoprocessors(ctx, newDesc);
return newDesc;
}
@Override
public void preCreateTable(ObserverContext ctx,
TableDescriptor htd, RegionInfo[] regions) throws IOException {
verifyCoprocessors(ctx, htd);
}
/**
* Validates a single whitelist path against the coprocessor path
* @param coprocPath the path to the coprocessor including scheme
* @param wlPath can be:
* 1) a "*" to wildcard all coprocessor paths
* 2) a specific filesystem (e.g. hdfs://my-cluster/)
* 3) a wildcard path to be evaluated by
* {@link FilenameUtils#wildcardMatch(String, String)}
* path can specify scheme or not (e.g.
* "file:///usr/hbase/coprocessors" or for all
* filesystems "/usr/hbase/coprocessors")
* @return if the path was found under the wlPath
*/
private static boolean validatePath(Path coprocPath, Path wlPath) {
// verify if all are allowed
if (wlPath.toString().equals("*")) {
return(true);
}
// verify we are on the same filesystem if wlPath has a scheme
if (!wlPath.isAbsoluteAndSchemeAuthorityNull()) {
String wlPathScheme = wlPath.toUri().getScheme();
String coprocPathScheme = coprocPath.toUri().getScheme();
String wlPathHost = wlPath.toUri().getHost();
String coprocPathHost = coprocPath.toUri().getHost();
if (wlPathScheme != null) {
wlPathScheme = wlPathScheme.toString().toLowerCase();
} else {
wlPathScheme = "";
}
if (wlPathHost != null) {
wlPathHost = wlPathHost.toString().toLowerCase();
} else {
wlPathHost = "";
}
if (coprocPathScheme != null) {
coprocPathScheme = coprocPathScheme.toString().toLowerCase();
} else {
coprocPathScheme = "";
}
if (coprocPathHost != null) {
coprocPathHost = coprocPathHost.toString().toLowerCase();
} else {
coprocPathHost = "";
}
if (!wlPathScheme.equals(coprocPathScheme) || !wlPathHost.equals(coprocPathHost)) {
return(false);
}
}
// allow any on this file-system (file systems were verified to be the same above)
if (wlPath.isRoot()) {
return(true);
}
// allow "loose" matches stripping scheme
if (FilenameUtils.wildcardMatch(
Path.getPathWithoutSchemeAndAuthority(coprocPath).toString(),
Path.getPathWithoutSchemeAndAuthority(wlPath).toString())) {
return(true);
}
return(false);
}
/**
* Perform the validation checks for a coprocessor to determine if the path
* is white listed or not.
* @throws IOException if path is not included in whitelist or a failure
* occurs in processing
* @param ctx as passed in from the coprocessor
* @param htd as passed in from the coprocessor
*/
private static void verifyCoprocessors(ObserverContext ctx,
TableDescriptor htd) throws IOException {
Collection paths =
ctx.getEnvironment().getConfiguration().getStringCollection(
CP_COPROCESSOR_WHITELIST_PATHS_KEY);
for (CoprocessorDescriptor cp : htd.getCoprocessorDescriptors()) {
if (cp.getJarPath().isPresent()) {
if (paths.stream().noneMatch(p -> {
Path wlPath = new Path(p);
if (validatePath(new Path(cp.getJarPath().get()), wlPath)) {
LOG.debug(String.format("Coprocessor %s found in directory %s",
cp.getClassName(), p));
return true;
}
return false;
})) {
throw new IOException(String.format("Loading %s DENIED in %s",
cp.getClassName(), CP_COPROCESSOR_WHITELIST_PATHS_KEY));
}
}
}
}
}