[OpenSIPS-Users] B2BUA help

[Anca Vamanu]

opensipslist at encambio.com wrote:
> Hello Anca,
>
> An lun., févr 08, 2010, Anca VAMANU schrieb:
>   
>> The scenario that you want - authorizing the user at the media
>> server in a bridging scenario will not work. You can not call
>> b2b_init twice for the same dialog. The B2B implementation does not
>> include the authorization requirements. And in fact I believe that
>> you are complicating things by wanting the user to authorize to the
>> media server. The normal approach will be for the user to authorize
>> to the proxy and only after it has been authorize to call b2b_init
>> function.  And for the media server not to ask for authorization
>> because the proxy should be in a trusted source list and the
>> requests coming from it should not be challenged.
>>
>>     
> Okay now it's clear, thanks for the help. But the problem is not
> solved, because there are situations in which the INVITE from your
> B2B logic should be challenged. In my case, the media server is
> serving voicemail as well. It must challenge incoming INVITEs
> because sometimes the 'From' URI describes a voicemail user that
> will be authorized to listen to their messages by way of the
> standard WWW-Authenticate.
>
> At the same time, I'm sure there's no problem in passing the 
> 'Authorization' header if I make a new B2B module or simply patch
> the existing one. Is it true that calling b2b_init a second time
> will be no problem, because as b2b_logic sees the 401
> WWW-AUthenticate it will close the dialog started by the INVITE?
>
> Can you please advise me whether the needed change to pass the
> 'Authorization' header is in b2b_entities or b2b_logic? Do you
> see any problem in doing this?
>
> I have some other ideas of implementing B2B modules ontop of
> b2b_entities, so this would be a good way to become introduced
> to the code.
>
> Regards,
> Brian
>   
Yes, the authorization header should pass no matter what. I will try 
this myself and check if there is a bug.

Regards,

-- 
Anca Vamanu
www.voice-system.ro


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