Yuanbo Liu updated HADOOP-13707:
    Attachment: HADOOP-13707.001.patch

I've prepared a patch without any test case. I'd like to get community's 
thoughts before I complete it.
Any response will be appreciated, thanks in advance.

> If kerberos is enabled while HTTP SPNEGO is not configured, some links cannot 
> be accessed
> -----------------------------------------------------------------------------------------
>                 Key: HADOOP-13707
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13707
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Yuanbo Liu
>         Attachments: HADOOP-13707.001.patch
> In {{HttpServer2#hasAdministratorAccess}}, it uses 
> `hadoop.security.authorization` to detect whether HTTP is authenticated.
> It's not correct, because enabling Kerberos and HTTP SPNEGO are two steps. If 
> Kerberos is enabled while HTTP SPNEGO is not, some links cannot be accessed, 
> such as "/logs", and it will return error message as below:
> {quote}
> Problem accessing /logs/. Reason:
> User dr.who is unauthorized to access this page.
> {quote}
> We should use {{adoop.http.authentication.type}} instead of 
> {{hadoop.security.authorization}} to detect whether HTTP authentication is 
> enabled, if the value of  {{adoop.http.authentication.type}}  equals 
> `simple`, anybody has administrator access.

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