[ 
https://issues.apache.org/jira/browse/HIVE-25575?focusedWorklogId=734357&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-734357
 ]

ASF GitHub Bot logged work on HIVE-25575:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 01/Mar/22 06:18
            Start Date: 01/Mar/22 06:18
    Worklog Time Spent: 10m 
      Work Description: sourabh912 commented on a change in pull request #3006:
URL: https://github.com/apache/hive/pull/3006#discussion_r816156182



##########
File path: jdbc/src/java/org/apache/hive/jdbc/HiveConnection.java
##########
@@ -804,6 +811,34 @@ protected boolean requestIsAborted(final HttpRequest 
request) {
     return httpClientBuilder.build();
   }
 
+  private String getJWT() {
+    String jwtCredential = getJWTStringFromSession();
+    if (jwtCredential == null) {

Review comment:
       check for non empty string as well ? 

##########
File path: common/src/java/org/apache/hadoop/hive/conf/HiveConf.java
##########
@@ -4127,7 +4127,8 @@ private static void populateLlapDaemonVarsSet(Set<String> 
llapDaemonVarsSetLocal
         "          (Use with property 
hive.server2.custom.authentication.class)\n" +
         "  PAM: Pluggable authentication module\n" +
         "  NOSASL:  Raw transport\n" +
-        "  SAML: SAML 2.0 compliant authentication. This is only supported in 
http transport mode."),
+        "  SAML: SAML 2.0 compliant authentication. This is only supported in 
http transport mode\n" +
+        "  JWT: JWT based authentication, JWT needs to contain the user as 
subject"),

Review comment:
       Isn't JWT only supported in http mode? 

##########
File path: jdbc/src/java/org/apache/hive/jdbc/HiveConnection.java
##########
@@ -804,6 +811,34 @@ protected boolean requestIsAborted(final HttpRequest 
request) {
     return httpClientBuilder.build();
   }
 
+  private String getJWT() {
+    String jwtCredential = getJWTStringFromSession();
+    if (jwtCredential == null) {
+      jwtCredential = getJWTStringFromEnv();
+    }
+    return jwtCredential;
+  }
+
+  private String getJWTStringFromEnv() {
+    String jwtCredential = System.getenv(JdbcConnectionParams.AUTH_JWT_ENV);
+    if (jwtCredential == null) {

Review comment:
       same as previous comment, check for non empty string as well? 

##########
File path: jdbc/src/java/org/apache/hive/jdbc/HiveConnection.java
##########
@@ -804,6 +811,34 @@ protected boolean requestIsAborted(final HttpRequest 
request) {
     return httpClientBuilder.build();
   }
 
+  private String getJWT() {
+    String jwtCredential = getJWTStringFromSession();
+    if (jwtCredential == null) {
+      jwtCredential = getJWTStringFromEnv();
+    }
+    return jwtCredential;
+  }
+
+  private String getJWTStringFromEnv() {
+    String jwtCredential = System.getenv(JdbcConnectionParams.AUTH_JWT_ENV);
+    if (jwtCredential == null) {
+      LOG.debug("No JWT is specified in env variable {}", 
JdbcConnectionParams.AUTH_JWT_ENV);
+    } else {
+      LOG.debug("Fetched JWT from the env.");
+    }
+    return jwtCredential;
+  }
+
+  private String getJWTStringFromSession() {
+    String jwtCredential = 
sessConfMap.get(JdbcConnectionParams.AUTH_TYPE_JWT_KEY);
+    if (jwtCredential == null) {
+      LOG.debug("No JWT is specified in connection string.");
+    } else {
+      LOG.debug("Fetched JWT from the session.");

Review comment:
       shall we log the JWT token for debugging purpose? 

##########
File path: 
service/src/java/org/apache/hive/service/cli/thrift/ThriftHttpServlet.java
##########
@@ -213,6 +221,8 @@ protected void doPost(HttpServletRequest request, 
HttpServletResponse response)
             } else {
               clientUserName = doKerberosAuth(request);
             }
+          } else if (authType.isEnabled(HiveAuthConstants.AuthTypes.JWT) && 
hasJWT(request)) {

Review comment:
       why do we have `hasJWT(request)` check? If this check fails does that 
mean we fallback to other type of auth mechanism? 

##########
File path: 
service/src/java/org/apache/hive/service/cli/thrift/ThriftHttpServlet.java
##########
@@ -264,8 +274,7 @@ protected void doPost(HttpServletRequest request, 
HttpServletResponse response)
         LOG.info("Cookie added for clientUserName " + clientUserName);

Review comment:
       I am thinking about a following scenario: 
   
   Lets say cookieAuth is enabled and max age of cookie is 5 hrs. Now the first 
time a JWT token gets authenticated, HS2 would generate a cookie for it. But 
lets say the expiration time of JWT is 2 hrs. 
   Since the cookie is valid for 5 hrs does this mean HS2 would keep 
successfully authenticating the user even after the JWT token has already 
expired? 
   

##########
File path: service/src/java/org/apache/hive/service/auth/jwt/JWTValidator.java
##########
@@ -0,0 +1,110 @@
+/*
+ * 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.jwt;
+
+import com.google.common.base.Preconditions;
+import com.nimbusds.jose.JOSEException;
+import com.nimbusds.jose.JWSHeader;
+import com.nimbusds.jose.JWSObject;
+import com.nimbusds.jose.JWSVerifier;
+import com.nimbusds.jose.KeyTypeException;
+import com.nimbusds.jose.crypto.ECDSAVerifier;
+import com.nimbusds.jose.crypto.MACVerifier;
+import com.nimbusds.jose.crypto.RSASSAVerifier;
+import com.nimbusds.jose.jwk.JWK;
+import com.nimbusds.jose.jwk.RSAKey;
+import com.nimbusds.jwt.JWTClaimsSet;
+import com.nimbusds.jwt.SignedJWT;
+import org.apache.hadoop.hive.conf.HiveConf;
+
+import javax.crypto.SecretKey;
+import java.io.IOException;
+import java.security.interfaces.ECPublicKey;
+import java.security.interfaces.RSAPublicKey;
+import java.text.ParseException;
+import java.util.Date;
+import java.util.List;
+
+public class JWTValidator {
+
+  private final URLBasedJWKSProvider jwksProvider;
+
+  public JWTValidator(HiveConf conf) throws IOException, ParseException {
+    this.jwksProvider = new URLBasedJWKSProvider(conf);
+  }
+
+  public String validateJWTAndExtractUser(String signedJwt) throws Exception {
+    final SignedJWT parsedJwt = SignedJWT.parse(signedJwt);
+    List<JWK> matchedJWKS = jwksProvider.getJWKs(parsedJwt.getHeader());
+
+    // verify signature
+    boolean signatureVerificationSuccessful = false;
+    for (JWK matchedJWK : matchedJWKS) {
+      JWSVerifier verifier = getVerifier(parsedJwt, matchedJWK);
+      if (parsedJwt.verify(verifier)) {
+        signatureVerificationSuccessful = true;
+        break;
+      }
+    }
+    Preconditions.checkState(signatureVerificationSuccessful, "Unable to 
verify incoming JWT Signature");
+
+    // verify claims
+    JWTClaimsSet claimsSet = parsedJwt.getJWTClaimsSet();
+    Date expirationTime = claimsSet.getExpirationTime();
+    if (expirationTime != null) {
+      Date now = new Date();
+      Preconditions.checkState(now.before(expirationTime), "JWT has been 
expired");
+    }
+
+    // We assume the subject of claims is the query user
+    return claimsSet.getSubject();
+  }
+
+
+
+  // TODO Same logic as DefaultJWSVerifierFactory#createJWSVerifier -- This 
can be written more elegantly, check AGAIN
+  private static JWSVerifier getVerifier(JWSObject parsedJWT, JWK key) throws 
JOSEException {

Review comment:
       If the logic is exactly the same then why don't we reuse the 
DefaultJWSVerifierFactory here? We can override it later if there is a need. 

##########
File path: 
service/src/java/org/apache/hive/service/cli/thrift/ThriftHttpServlet.java
##########
@@ -302,6 +310,25 @@ protected void doPost(HttpServletRequest request, 
HttpServletResponse response)
     }
   }
 
+  private String validateJWT(HttpServletRequest request, HttpServletResponse 
response)
+      throws HttpAuthenticationException {
+    Preconditions.checkState(jwtValidator != null, "JWT validator should have 
been set");
+    String signedJwt = extractBearerToken(request, response);
+    if (signedJwt == null) {
+      LOG.debug("No token found with the request {}", request);
+      return null;
+    }
+    String user = null;
+    try {
+      user = jwtValidator.validateJWTAndExtractUser(signedJwt);

Review comment:
       Should we check for non empty user value ? 

##########
File path: service/src/java/org/apache/hive/service/auth/jwt/JWTValidator.java
##########
@@ -0,0 +1,110 @@
+/*
+ * 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.jwt;
+
+import com.google.common.base.Preconditions;
+import com.nimbusds.jose.JOSEException;
+import com.nimbusds.jose.JWSHeader;
+import com.nimbusds.jose.JWSObject;
+import com.nimbusds.jose.JWSVerifier;
+import com.nimbusds.jose.KeyTypeException;
+import com.nimbusds.jose.crypto.ECDSAVerifier;
+import com.nimbusds.jose.crypto.MACVerifier;
+import com.nimbusds.jose.crypto.RSASSAVerifier;
+import com.nimbusds.jose.jwk.JWK;
+import com.nimbusds.jose.jwk.RSAKey;
+import com.nimbusds.jwt.JWTClaimsSet;
+import com.nimbusds.jwt.SignedJWT;
+import org.apache.hadoop.hive.conf.HiveConf;
+
+import javax.crypto.SecretKey;
+import java.io.IOException;
+import java.security.interfaces.ECPublicKey;
+import java.security.interfaces.RSAPublicKey;
+import java.text.ParseException;
+import java.util.Date;
+import java.util.List;
+
+public class JWTValidator {
+
+  private final URLBasedJWKSProvider jwksProvider;
+
+  public JWTValidator(HiveConf conf) throws IOException, ParseException {
+    this.jwksProvider = new URLBasedJWKSProvider(conf);
+  }
+
+  public String validateJWTAndExtractUser(String signedJwt) throws Exception {
+    final SignedJWT parsedJwt = SignedJWT.parse(signedJwt);
+    List<JWK> matchedJWKS = jwksProvider.getJWKs(parsedJwt.getHeader());

Review comment:
       add a preconditions check for jwksProvider to be not null ? 

##########
File path: service/src/java/org/apache/hive/service/auth/jwt/JWTValidator.java
##########
@@ -0,0 +1,110 @@
+/*
+ * 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.jwt;
+
+import com.google.common.base.Preconditions;
+import com.nimbusds.jose.JOSEException;
+import com.nimbusds.jose.JWSHeader;
+import com.nimbusds.jose.JWSObject;
+import com.nimbusds.jose.JWSVerifier;
+import com.nimbusds.jose.KeyTypeException;
+import com.nimbusds.jose.crypto.ECDSAVerifier;
+import com.nimbusds.jose.crypto.MACVerifier;
+import com.nimbusds.jose.crypto.RSASSAVerifier;
+import com.nimbusds.jose.jwk.JWK;
+import com.nimbusds.jose.jwk.RSAKey;
+import com.nimbusds.jwt.JWTClaimsSet;
+import com.nimbusds.jwt.SignedJWT;
+import org.apache.hadoop.hive.conf.HiveConf;
+
+import javax.crypto.SecretKey;
+import java.io.IOException;
+import java.security.interfaces.ECPublicKey;
+import java.security.interfaces.RSAPublicKey;
+import java.text.ParseException;
+import java.util.Date;
+import java.util.List;
+
+public class JWTValidator {
+
+  private final URLBasedJWKSProvider jwksProvider;
+
+  public JWTValidator(HiveConf conf) throws IOException, ParseException {
+    this.jwksProvider = new URLBasedJWKSProvider(conf);
+  }
+
+  public String validateJWTAndExtractUser(String signedJwt) throws Exception {

Review comment:
       Instead of a generic exception, the method should throw specific 
exceptions so that caller can act accordingly.

##########
File path: service/src/java/org/apache/hive/service/auth/jwt/JWTValidator.java
##########
@@ -0,0 +1,110 @@
+/*
+ * 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.jwt;
+
+import com.google.common.base.Preconditions;
+import com.nimbusds.jose.JOSEException;
+import com.nimbusds.jose.JWSHeader;
+import com.nimbusds.jose.JWSObject;
+import com.nimbusds.jose.JWSVerifier;
+import com.nimbusds.jose.KeyTypeException;
+import com.nimbusds.jose.crypto.ECDSAVerifier;
+import com.nimbusds.jose.crypto.MACVerifier;
+import com.nimbusds.jose.crypto.RSASSAVerifier;
+import com.nimbusds.jose.jwk.JWK;
+import com.nimbusds.jose.jwk.RSAKey;
+import com.nimbusds.jwt.JWTClaimsSet;
+import com.nimbusds.jwt.SignedJWT;
+import org.apache.hadoop.hive.conf.HiveConf;
+
+import javax.crypto.SecretKey;
+import java.io.IOException;
+import java.security.interfaces.ECPublicKey;
+import java.security.interfaces.RSAPublicKey;
+import java.text.ParseException;
+import java.util.Date;
+import java.util.List;
+
+public class JWTValidator {
+
+  private final URLBasedJWKSProvider jwksProvider;
+
+  public JWTValidator(HiveConf conf) throws IOException, ParseException {
+    this.jwksProvider = new URLBasedJWKSProvider(conf);
+  }
+
+  public String validateJWTAndExtractUser(String signedJwt) throws Exception {
+    final SignedJWT parsedJwt = SignedJWT.parse(signedJwt);
+    List<JWK> matchedJWKS = jwksProvider.getJWKs(parsedJwt.getHeader());
+
+    // verify signature
+    boolean signatureVerificationSuccessful = false;
+    for (JWK matchedJWK : matchedJWKS) {
+      JWSVerifier verifier = getVerifier(parsedJwt, matchedJWK);
+      if (parsedJwt.verify(verifier)) {
+        signatureVerificationSuccessful = true;
+        break;
+      }
+    }
+    Preconditions.checkState(signatureVerificationSuccessful, "Unable to 
verify incoming JWT Signature");

Review comment:
       Instead of a preconditions check, should we throw custom exception like 
SignatureVerficationFailedException? 

##########
File path: service/src/java/org/apache/hive/service/auth/jwt/JWTValidator.java
##########
@@ -0,0 +1,110 @@
+/*
+ * 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.jwt;
+
+import com.google.common.base.Preconditions;
+import com.nimbusds.jose.JOSEException;
+import com.nimbusds.jose.JWSHeader;
+import com.nimbusds.jose.JWSObject;
+import com.nimbusds.jose.JWSVerifier;
+import com.nimbusds.jose.KeyTypeException;
+import com.nimbusds.jose.crypto.ECDSAVerifier;
+import com.nimbusds.jose.crypto.MACVerifier;
+import com.nimbusds.jose.crypto.RSASSAVerifier;
+import com.nimbusds.jose.jwk.JWK;
+import com.nimbusds.jose.jwk.RSAKey;
+import com.nimbusds.jwt.JWTClaimsSet;
+import com.nimbusds.jwt.SignedJWT;
+import org.apache.hadoop.hive.conf.HiveConf;
+
+import javax.crypto.SecretKey;
+import java.io.IOException;
+import java.security.interfaces.ECPublicKey;
+import java.security.interfaces.RSAPublicKey;
+import java.text.ParseException;
+import java.util.Date;
+import java.util.List;
+
+public class JWTValidator {
+
+  private final URLBasedJWKSProvider jwksProvider;
+
+  public JWTValidator(HiveConf conf) throws IOException, ParseException {
+    this.jwksProvider = new URLBasedJWKSProvider(conf);
+  }
+
+  public String validateJWTAndExtractUser(String signedJwt) throws Exception {
+    final SignedJWT parsedJwt = SignedJWT.parse(signedJwt);
+    List<JWK> matchedJWKS = jwksProvider.getJWKs(parsedJwt.getHeader());
+
+    // verify signature
+    boolean signatureVerificationSuccessful = false;
+    for (JWK matchedJWK : matchedJWKS) {
+      JWSVerifier verifier = getVerifier(parsedJwt, matchedJWK);
+      if (parsedJwt.verify(verifier)) {
+        signatureVerificationSuccessful = true;
+        break;
+      }
+    }
+    Preconditions.checkState(signatureVerificationSuccessful, "Unable to 
verify incoming JWT Signature");
+
+    // verify claims
+    JWTClaimsSet claimsSet = parsedJwt.getJWTClaimsSet();
+    Date expirationTime = claimsSet.getExpirationTime();
+    if (expirationTime != null) {
+      Date now = new Date();

Review comment:
       should we make this a class member variable so that it is not 
instantiated on every call to validateJWTAndExtractUser() ? 




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 734357)
    Time Spent: 1h 20m  (was: 1h 10m)

> Add support for JWT authentication in HTTP mode
> -----------------------------------------------
>
>                 Key: HIVE-25575
>                 URL: https://issues.apache.org/jira/browse/HIVE-25575
>             Project: Hive
>          Issue Type: New Feature
>          Components: HiveServer2, JDBC
>    Affects Versions: 4.0.0
>            Reporter: Shubham Chaurasia
>            Assignee: Yu-Wen Lai
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h 20m
>  Remaining Estimate: 0h
>
> It would be good to support JWT auth mechanism in hive. In order to implement 
> it, we would need the following - 
> On HS2 side -
> 1. Accept JWT in Authorization: Bearer header.
> 2. Fetch JWKS from a public endpoint to verify JWT signature, to start with 
> we can fetch on HS2 start up.
> 3. Verify JWT Signature.
> On JDBC Client side - 
> 1. Hive jdbc client should be able to accept jwt in JDBC url. (will add more 
> details)
> 2. Client should also be able to pick up JWT from an env var if it's defined.



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