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https://issues.apache.org/jira/browse/DRILL-4280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15850926#comment-15850926
]
ASF GitHub Bot commented on DRILL-4280:
---------------------------------------
Github user sohami commented on a diff in the pull request:
https://github.com/apache/drill/pull/578#discussion_r99260686
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/rpc/security/plain/PlainServer.java
---
@@ -0,0 +1,175 @@
+/**
+ * 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.drill.exec.rpc.security.plain;
+
+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.sasl.AuthorizeCallback;
+import javax.security.sasl.Sasl;
+import javax.security.sasl.SaslException;
+import javax.security.sasl.SaslServer;
+import javax.security.sasl.SaslServerFactory;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.security.Provider;
+import java.util.Map;
+
+/**
+ * Plain SaslServer implementation. See https://tools.ietf.org/html/rfc4616
+ */
+public class PlainServer implements SaslServer {
+// private static final org.slf4j.Logger logger =
org.slf4j.LoggerFactory.getLogger(PlainServer.class);
+
+ private static final String UTF_8_NULL = "\u0000";
+
+ public static final String MECHANISM_NAME = "PLAIN";
+
+ public static class PlainServerFactory implements SaslServerFactory {
+
+ @Override
+ public SaslServer createSaslServer(final String mechanism, final
String protocol, final String serverName,
+ final Map<String, ?> props, final
CallbackHandler cbh)
+ throws SaslException {
+ return MECHANISM_NAME.equals(mechanism)
+ ? props == null
+ ? new PlainServer(cbh)
+ : ("true".equals(props.get(Sasl.POLICY_NOPLAINTEXT)) ? null :
new PlainServer(cbh))
+ : null;
+ }
+
+ @Override
+ public String[] getMechanismNames(final Map<String, ?> props) {
+ return props == null ||
"false".equals(props.get(Sasl.POLICY_NOPLAINTEXT))
--- End diff --
we should change this check as well like above to be consistent. Since
right now if `props` is not null and POLICY_NOPLAINTEXT property is absent
then we will return empty string.
> Kerberos Authentication
> -----------------------
>
> Key: DRILL-4280
> URL: https://issues.apache.org/jira/browse/DRILL-4280
> Project: Apache Drill
> Issue Type: Improvement
> Reporter: Keys Botzum
> Assignee: Sudheesh Katkam
> Labels: security
>
> Drill should support Kerberos based authentication from clients. This means
> that both the ODBC and JDBC drivers as well as the web/REST interfaces should
> support inbound Kerberos. For Web this would most likely be SPNEGO while for
> ODBC and JDBC this will be more generic Kerberos.
> Since Hive and much of Hadoop supports Kerberos there is a potential for a
> lot of reuse of ideas if not implementation.
> Note that this is related to but not the same as
> https://issues.apache.org/jira/browse/DRILL-3584
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