> On Feb. 24, 2017, 2:07 a.m., Vinod Kone wrote:
> > src/slave/http.cpp, line 831
> > <https://reviews.apache.org/r/56812/diff/2/?file=1641768#file1641768line831>
> >
> >     so previously we were sending an empty subject (`Subject()`) but now we 
> > are sending `Option::None()` to `getObjectApprover`? what's the difference? 
> > i wish this change was done in a separate review instead of mixing it here 
> > with the use of auth context.
> 
> Greg Mann wrote:
>     Yes, the existing code is buggy. If authorization is enabled, but 
> authentication is disabled (so that `principal` is `NONE`), then we end up 
> default-constructing the authorization `Subject` instead of using `None()`. 
> This creates a `Subject` with an empty string for its value.
>     
>     This means that if authorization is enabled, authentication is disabled, 
> and an ACL has been set allowing a user called "" to do things, then requests 
> which do not specify any Authorization header will be granted access 
> incorrectly. Clearly, this is an extreme corner case, but a bug nonetheless.
>     
>     I didn't notice the bug until the reviews were already in flight, so I 
> applied the change in these patches. If you like, I can create a patch before 
> this one which applies the changes to make use of `None()` correctly, and 
> then rebase onto that.

Yea, lets separate the patch out into dependent review. Will enable us to 
cherry pick it into older releases if needed.


- Vinod


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On Feb. 22, 2017, 1:18 a.m., Greg Mann wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/56812/
> -----------------------------------------------------------
> 
> (Updated Feb. 22, 2017, 1:18 a.m.)
> 
> 
> Review request for mesos, Adam B, Alexander Rojas, Jan Schlicht, Till 
> Toenshoff, and Vinod Kone.
> 
> 
> Bugs: MESOS-7003
>     https://issues.apache.org/jira/browse/MESOS-7003
> 
> 
> Repository: mesos
> 
> 
> Description
> -------
> 
> This patch updates the HTTP endpoint handlers in the
> agent process to accept an `AuthenticationContext`
> instead of an `Option<string>& principal`.
> 
> 
> Diffs
> -----
> 
>   src/slave/http.cpp 8a9fabf861369d3ae659dce21fa3932f6f7b9161 
>   src/slave/slave.hpp 3b0aea4e3e9a17501077beccbccaab4abbe11af2 
>   src/slave/slave.cpp 45905297836017e9031359894fc71e614c13cfcc 
> 
> Diff: https://reviews.apache.org/r/56812/diff/
> 
> 
> Testing
> -------
> 
> Testing details can be found at the end of this review chain.
> 
> 
> Thanks,
> 
> Greg Mann
> 
>

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