Re: [OpenSIPStack] WatchRegistrationState

[Joegen E. B. <joe...@gm...>]

Matthias Dreißig wrote:
> Hello Joegen,
>
> I want to try to create the presence functionality and if it all works 
> fine I will donate the code to the project.

Thats great! ;-)


>
> I have some questions.
> Is it possible to get the classes for parsing the xml documents, 
> perhaps I could reuse it?

Of course.  There are a lot of modules that demonstrates the use of the 
expat wrapper.  One good example is OSSAppConfig::CreatePage() where you 
can find the code responsible for dynamically creating HTTP admin pages 
from oss-application.conf.xml.

> Where I could start?
>    Create SIPSessionManager.
>    Process events in OpalOSSUserAgent to this SessionManager if method 
> is SUBSCRIBE or NOTIFY and event is presence.

Before delving into the actual event package, I suggest that you come up 
with the PIDF parser classes first and submit them so it can be 
reviewed., just as a SIP Stack starts with the parser before delving 
into the complexity of state machines  ;-)


> What I should use from RFC3265 code and what i do not need?

Yes.  RFC3265 code is pretty much complete in opensipstack.


> Are the RFC3680 implementations working, so I could see how it has to 
> work?

Partially.  I won't say it's functional for reasons I have already 
stated in this thread.
>
> PS: I found a little bug in RFC3265Client.h see attachment.
>

Can you give a little explanation what the bug is all about?


> Thanks
> Matthias
>
> jo...@op... schrieb:
>> Not at this point.   Once upon a time, there were already classes for 
>> parsing PIDF but due to the absence of dedicated manpower, it 
>> remained dormant.  I decided to removed them starting version 1.1.4 
>> of OpenSBC.  It has support for messaging though, but not presence.  
>> However, it should be "relatively" easy to create your own presence 
>> functionality using the RFC3256 classes.   Feel free to donate your 
>> code to the project if you decide to give it a shot.
>>
>> Matthias Dreißig wrote:
>>  
>>> So there is no support for presence in opensipstack at this time?
>>>
>>> Joegen E. Baclor schrieb:
>>>      
>>>> Matthias Dreißig wrote:
>>>>            
>>>>> Hi everyone,
>>>>>
>>>>> how do I use WatchRegistrationState(const SIPURI & stateAgent, 
>>>>> const SIPURI & resourceURI, const PTimeInterval & expires, const 
>>>>> OString & authUser, const OString & authPassword). What do I have 
>>>>> to process to this call?
>>>>>                     
>>>> Ouch!  This method is an attempt to support RFC 3680 ( 
>>>> http://www.ietf.org/rfc/rfc3680.txt ).   I did not get the chance 
>>>> to revisit this work for a long time so it remains a work in 
>>>> progress at this point.   I am itching to get this supported in 
>>>> OpalOSS and OSBC though (hint, hint, hint Ilian ;-)) .
>>>>
>>>>
>>>>            
>>>>> Regards,
>>>>> M. Dreißig
>>>>>
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