org.apache.pulsar.client.impl.DefaultCryptoKeyReader Maven / Gradle / Ivy
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* 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
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* KIND, either express or implied. See the License for the
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package org.apache.pulsar.client.impl;
import java.io.IOException;
import java.net.URISyntaxException;
import java.net.URLConnection;
import java.util.Map;
import org.apache.pulsar.shade.org.apache.commons.io.IOUtils;
import org.apache.pulsar.client.api.CryptoKeyReader;
import org.apache.pulsar.client.api.EncryptionKeyInfo;
import org.apache.pulsar.client.api.url.URL;
import org.apache.pulsar.client.impl.conf.DefaultCryptoKeyReaderConfigurationData;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class DefaultCryptoKeyReader implements CryptoKeyReader {
private static final Logger LOG = LoggerFactory.getLogger(DefaultCryptoKeyReader.class);
private static final String APPLICATION_X_PEM_FILE = "application/x-pem-file";
private String defaultPublicKey;
private String defaultPrivateKey;
private Map publicKeys;
private Map privateKeys;
public static DefaultCryptoKeyReaderBuilder builder() {
return new DefaultCryptoKeyReaderBuilder();
}
DefaultCryptoKeyReader(DefaultCryptoKeyReaderConfigurationData conf) {
this.defaultPublicKey = conf.getDefaultPublicKey();
this.defaultPrivateKey = conf.getDefaultPrivateKey();
this.publicKeys = conf.getPublicKeys();
this.privateKeys = conf.getPrivateKeys();
}
@Override
public EncryptionKeyInfo getPublicKey(String keyName, Map metadata) {
EncryptionKeyInfo keyInfo = new EncryptionKeyInfo();
String publicKey = publicKeys.getOrDefault(keyName, defaultPublicKey);
if (publicKey == null) {
LOG.warn("Public key named {} is not set", keyName);
} else {
try {
keyInfo.setKey(loadKey(publicKey));
} catch (Exception e) {
LOG.error("Failed to load public key named {}", keyName, e);
}
}
return keyInfo;
}
@Override
public EncryptionKeyInfo getPrivateKey(String keyName, Map metadata) {
EncryptionKeyInfo keyInfo = new EncryptionKeyInfo();
String privateKey = privateKeys.getOrDefault(keyName, defaultPrivateKey);
if (privateKey == null) {
LOG.warn("Private key named {} is not set", keyName);
} else {
try {
keyInfo.setKey(loadKey(privateKey));
} catch (Exception e) {
LOG.error("Failed to load private key named {}", keyName, e);
}
}
return keyInfo;
}
private byte[] loadKey(String keyUrl) throws IOException, IllegalAccessException, InstantiationException {
try {
URLConnection urlConnection = new URL(keyUrl).openConnection();
try {
String protocol = urlConnection.getURL().getProtocol();
if ("data".equals(protocol) && !APPLICATION_X_PEM_FILE.equals(urlConnection.getContentType())) {
throw new IllegalArgumentException(
"Unsupported media type or encoding format: " + urlConnection.getContentType());
}
return IOUtils.toByteArray(urlConnection);
} finally {
IOUtils.close(urlConnection);
}
} catch (URISyntaxException e) {
throw new IllegalArgumentException("Invalid key format");
}
}
}