Re: Some questions

On Thu, 11 Dec 2014 23:25:27 +0100
Irmen de Jong <[email protected]> wrote:

> The problem was in Pyro's locateNS function. When it discovered the
> name server via a broadcast lookup, it returned a proxy without
> setting the proper hmac key. (It worked fine when it found the NS via
> other means).
> 
> Also your call to resolve() is fine -where you provided the hmac_key-
> but it uses locateNS() internally and so failed in the same fashion as
> your original code.
> 
> 
> I've committed the fix for this, but you'll have to make a minor
> change to your original code as well: make sure that you pass in a
> hmac_key to the locateNS() function.

Ok, the answer's down there:)

> If you do this, you will receive
> back a proxy that has the correct hmac key already set (so you don't
> have to set its _pyroHmacKey property yourself anymore).

Oh, that was also a question: whether to add the hmac key or not in any
call, which could be boring when using multiple keys; so this one' solved
too.

> You do have
> to set it on any new proxies you create because Pyro will not remember
> the secret key anywhere.

Ok, sounds logical.

BTW, is there a possibility to have multiple hmac keys in only one
instance of a NS? (AFA I can tell from the doc, it is not).

> Can you try out the current MASTER version in Github with the above
> mentioned little change in your code, and report back if this solves
> your issue? I will then make it an official release.

OK, this is now working as expected:

ns = Pyro4.naming.locateNS( hmac_key=conf_cli.HMAC_KEY )
uri = ns.lookup( conf_cli.NS_REGISTERED_NAME )
DB = Pyro4.core.Proxy( uri )
DB._pyroHmacKey = conf_cli.HMAC_KEY

What would be veeery niiice to have, would be an all-in-one,
something like:

DB = Pyro4.core.Proxy( conf_cli.NS_REGISTERED_NAME, conf_cli.HMAC_KEY )

Thanks for this fix, I'll keep this Pyro4 version installed.

Crap, I feel like inspector Columbo: aheeemm, just one more question: is
there a C hmac function that could be easily substituted to the Python's
one?

Jean-Yves

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