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KeyTool.java
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120 lines (109 loc) · 4.02 KB
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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.orc.tools;
import com.google.gson.stream.JsonWriter;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.io.BytesWritable;
import org.apache.orc.EncryptionAlgorithm;
import org.apache.orc.impl.CryptoUtils;
import org.apache.orc.impl.HadoopShims;
import org.apache.orc.impl.KeyProvider;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.PrintStream;
import java.security.SecureRandom;
/**
* Print the information about the encryption keys.
*/
public class KeyTool {
static void printKey(JsonWriter writer,
KeyProvider provider,
String keyName) throws IOException {
HadoopShims.KeyMetadata meta = provider.getCurrentKeyVersion(keyName);
writer.beginObject();
writer.name("name");
writer.value(keyName);
EncryptionAlgorithm algorithm = meta.getAlgorithm();
writer.name("algorithm");
writer.value(algorithm.getAlgorithm());
writer.name("keyLength");
writer.value(algorithm.keyLength());
writer.name("version");
writer.value(meta.getVersion());
byte[] iv = new byte[algorithm.getIvLength()];
byte[] key = provider.decryptLocalKey(meta, iv).getEncoded();
writer.name("key 0");
writer.value(new BytesWritable(key).toString());
writer.endObject();
}
private final OutputStreamWriter writer;
private final Configuration conf;
public KeyTool(Configuration conf,
String[] args) throws IOException, ParseException {
CommandLine opts = parseOptions(args);
PrintStream stream;
if (opts.hasOption('o')) {
stream = new PrintStream(opts.getOptionValue('o'), "UTF-8");
} else {
stream = System.out;
}
writer = new OutputStreamWriter(stream, "UTF-8");
this.conf = conf;
}
void run() throws IOException {
KeyProvider provider =
CryptoUtils.getKeyProvider(conf, new SecureRandom());
if (provider == null) {
System.err.println("No key provider available.");
System.exit(1);
}
for(String keyName: provider.getKeyNames()) {
JsonWriter writer = new JsonWriter(this.writer);
printKey(writer, provider, keyName);
this.writer.write('\n');
}
this.writer.close();
}
private static CommandLine parseOptions(String[] args) throws ParseException {
Options options = new Options();
options.addOption(
Option.builder("h").longOpt("help").desc("Provide help").build());
options.addOption(
Option.builder("o").longOpt("output").desc("Output filename")
.hasArg().build());
CommandLine cli = new DefaultParser().parse(options, args);
if (cli.hasOption('h')) {
HelpFormatter formatter = new HelpFormatter();
formatter.printHelp("key", options);
System.exit(1);
}
return cli;
}
public static void main(Configuration conf,
String[] args
) throws IOException, ParseException {
KeyTool tool = new KeyTool(conf, args);
tool.run();
}
}