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From sohami <...@git.apache.org>
Subject [GitHub] drill pull request #578: DRILL-4280: Kerberos Authentication
Date Fri, 03 Feb 2017 02:13:08 GMT
Github user sohami commented on a diff in the pull request:

    https://github.com/apache/drill/pull/578#discussion_r99256160
  
    --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/rpc/control/ControlClient.java
---
    @@ -89,14 +89,42 @@ public MessageLite getResponseDefaultInstance(int rpcType) throws
RpcException {
       }
     
       @Override
    -  protected Response handle(ControlConnection connection, int rpcType, ByteBuf pBody,
ByteBuf dBody) throws RpcException {
    -    return handler.handle(connection, rpcType, pBody, dBody);
    +  protected void handle(ControlConnection connection, int rpcType, ByteBuf pBody, ByteBuf
dBody,
    +                        ResponseSender sender) throws RpcException {
    +    connection.getCurrentHandler().handle(connection, rpcType, pBody, dBody, sender);
       }
     
       @Override
       protected void validateHandshake(BitControlHandshake handshake) throws RpcException
{
         if (handshake.getRpcVersion() != ControlRpcConfig.RPC_VERSION) {
    -      throw new RpcException(String.format("Invalid rpc version.  Expected %d, actual
%d.", handshake.getRpcVersion(), ControlRpcConfig.RPC_VERSION));
    +      throw new RpcException(String.format("Invalid rpc version.  Expected %d, actual
%d.",
    +          handshake.getRpcVersion(), ControlRpcConfig.RPC_VERSION));
    +    }
    +
    +    if (handshake.getAuthenticationMechanismsCount() != 0) { // remote requires authentication
    --- End diff --
    
    I think we should also have a check for the case if Authentication is enabled on this
**client** and for some reason **server** is sending empty list of mechanisms list (may be
wrong config) then we should throw exception.


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