On Tue, Aug 9, 2016 at 4:55 PM, Paul A <rootsumsqua...@gmail.com> wrote:
> Sorry, the question was about retrieving the username of the *client*
> connection to the notebook.
>
> The server-side username can be easily returned as:
>
> username = jupyter_client.session.Session().msg_header('')['username']
>
The browser never communicates directly with the kernel. All communication
is mediated through the server. The server has access to HTTP headers, etc.
It could use this information when starting a kernel to define an
environment variable, for instance, when starting the kernel. This could
also be done more simply on notebook-server startup, since the server is
presumably launched for a given user.
-Min
>
>
> On Tuesday, August 9, 2016 at 2:29:46 PM UTC+1, Min RK wrote:
>>
>> Since the kernel is a different process from the server, objects in the
>> server are not available to the kernels. Environment variables can be used
>> to share little bits of information throughout the server and kernels, e.g.
>>
>> export MY_USERNAME='something'
>> jupyter notebook
>>
>> in which case the MY_USERNAME env will be available to the server and all
>> of its kernel subprocesses. If the server doesn’t know its name until some
>> time later, you can modify how kernels are started, to pass this
>> environment variable on each kernel launch.
>>
>> -MinRK
>>
>>
>> On Tue, Aug 9, 2016 at 2:19 PM, Paul A <rootsum...@gmail.com> wrote:
>>
>>> Hi all, I have a user id passed via HttpContext, so in principle the
>>> notebook should know who is connecting. I know this is not secure, but
>>> should work for "Hey {}".format(context['username'].
>>>
>>> How can I get access to that HttpContext instance?
>>>
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