[Standards-JIG] how to handle IQ while invisible

[Mridul]

Peter Saint-Andre wrote:
> Richard Dobson wrote:
>   
>> Le Boulanger Yann wrote:
>>     
>>> when I ask jabber:iq:version to a contact that is invisible, request is
>>> forwarded to the client. I think it's normal as ejabberd can't know that
>>> someone is invisible (it's just a privacy list), but what should his
>>> client do ?
>>> If it just doesn't answer, I can know he is invisble (if he were really
>>> offline server would have answerd with a recipient-unavailable error
>>> message)
>>>
>>> the only solution for the client would be to ask server to reply instead
>>> of the client.
>>>
>>> it's of course the same thing for others iq.
>>>
>>> So invisible privacy list is useless, it's easy to discover who is
>>> invisible (ok we need to know the resource, but it's not too hard, it
>>> never changes)
>>>       
>> Why couldnt the client respond with recipient unavailable, just as the
>> server would?
>>     
>
> http://www.jabber.org/jeps/jep-0186.html#security discusses this.
>
> Peter
>
>   



Hi,

  This is a difference in behavior according to this JEP right ?
I mean, between an unavailable client and an invisible client.

Not just for iq , but also for the case of messages when amp is also in
use , etc.
So essentially , it might be possible for userA to find out if userB is
unavailable or invisible using these ..
Or I am getting the idea wrong ?

Regards,
Mridul