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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.hive.service.auth;
import java.io.IOException;
import java.security.Security;
import java.util.HashMap;
import javax.security.auth.callback.Callback;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.callback.NameCallback;
import javax.security.auth.callback.PasswordCallback;
import javax.security.auth.callback.UnsupportedCallbackException;
import javax.security.auth.login.LoginException;
import javax.security.sasl.AuthenticationException;
import javax.security.sasl.AuthorizeCallback;
import javax.security.sasl.SaslException;
import org.apache.hive.service.auth.AuthenticationProviderFactory.AuthMethods;
import org.apache.hive.service.auth.PlainSaslServer.SaslPlainProvider;
import org.apache.hive.service.cli.thrift.TCLIService.Iface;
import org.apache.hive.service.cli.thrift.ThriftCLIService;
import org.apache.thrift.TProcessor;
import org.apache.thrift.TProcessorFactory;
import org.apache.thrift.transport.TSaslClientTransport;
import org.apache.thrift.transport.TSaslServerTransport;
import org.apache.thrift.transport.TTransport;
import org.apache.thrift.transport.TTransportFactory;
public final class PlainSaslHelper {
public static TProcessorFactory getPlainProcessorFactory(ThriftCLIService service) {
return new SQLPlainProcessorFactory(service);
}
// Register Plain SASL server provider
static {
Security.addProvider(new SaslPlainProvider());
}
public static TTransportFactory getPlainTransportFactory(String authTypeStr)
throws LoginException {
TSaslServerTransport.Factory saslFactory = new TSaslServerTransport.Factory();
try {
saslFactory.addServerDefinition("PLAIN", authTypeStr, null, new HashMap<String, String>(),
new PlainServerCallbackHandler(authTypeStr));
} catch (AuthenticationException e) {
throw new LoginException("Error setting callback handler" + e);
}
return saslFactory;
}
public static TTransport getPlainTransport(String username, String password,
TTransport underlyingTransport) throws SaslException {
return new TSaslClientTransport("PLAIN", null, null, null, new HashMap<String, String>(),
new PlainCallbackHandler(username, password), underlyingTransport);
}
private PlainSaslHelper() {
throw new UnsupportedOperationException("Can't initialize class");
}
private static final class PlainServerCallbackHandler implements CallbackHandler {
private final AuthMethods authMethod;
PlainServerCallbackHandler(String authMethodStr) throws AuthenticationException {
authMethod = AuthMethods.getValidAuthMethod(authMethodStr);
}
@Override
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
String username = null;
String password = null;
AuthorizeCallback ac = null;
for (Callback callback : callbacks) {
if (callback instanceof NameCallback) {
NameCallback nc = (NameCallback) callback;
username = nc.getName();
} else if (callback instanceof PasswordCallback) {
PasswordCallback pc = (PasswordCallback) callback;
password = new String(pc.getPassword());
} else if (callback instanceof AuthorizeCallback) {
ac = (AuthorizeCallback) callback;
} else {
throw new UnsupportedCallbackException(callback);
}
}
PasswdAuthenticationProvider provider =
AuthenticationProviderFactory.getAuthenticationProvider(authMethod);
provider.Authenticate(username, password);
if (ac != null) {
ac.setAuthorized(true);
}
}
}
public static class PlainCallbackHandler implements CallbackHandler {
private final String username;
private final String password;
public PlainCallbackHandler(String username, String password) {
this.username = username;
this.password = password;
}
@Override
public void handle(Callback[] callbacks) throws IOException, UnsupportedCallbackException {
for (Callback callback : callbacks) {
if (callback instanceof NameCallback) {
NameCallback nameCallback = (NameCallback) callback;
nameCallback.setName(username);
} else if (callback instanceof PasswordCallback) {
PasswordCallback passCallback = (PasswordCallback) callback;
passCallback.setPassword(password.toCharArray());
} else {
throw new UnsupportedCallbackException(callback);
}
}
}
}
private static final class SQLPlainProcessorFactory extends TProcessorFactory {
private final ThriftCLIService service;
SQLPlainProcessorFactory(ThriftCLIService service) {
super(null);
this.service = service;
}
@Override
public TProcessor getProcessor(TTransport trans) {
return new TSetIpAddressProcessor<Iface>(service);
}
}
}
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