[OpenSER-Users] Caching REGISTER

[Julien mangeard]

I am developing  3 functions with the perl module :
 => proxy_registered (REQUEST_ROUTE) : returns the registration status which
can be :
     - registered
     - must challenge the registrar proxy
     - not registed
     - too fast: retry later

=> proxy_challenge (REQUEST_ROUTE) :
     - records the contact in the database with a registration flag set to
null
     - fixes the expire parameter of the current SIP request

=> proxy_challenge_result (REPLY_ROUTE) :
     - changes or not the registration flag in the database
     - fixes the expire parameter in the database
     - fixes the expire parameter of the current reply

What do you think about it ?
Next week, I will make some tests with these functions.
If its work correctly, I have planned to write a module to improve
performance.

Best Regards,

-- 
Julien Mangeard

On Fri, Jun 20, 2008 at 10:14 AM, Daniel-Constantin Mierla <
miconda at gmail.com> wrote:

> Hello,
>
>
> On 06/15/08 13:11, Julien mangeard wrote:
>
>> Hi,
>>
>> I try to use Openser for caching REGISTER requests.
>> Openser server is between UA and SIP registrar server.
>>
>> First register :
>> The UA sends a REGISTER request.
>> Openser server changes the expire value (with bigger value) and it relays
>> these request to the SIP registrar server.
>> SIP registrar server responses with a challenge. The Openser relays this
>> challenge to the UA.
>>
>> The UA reponses to this challenge.
>> The Openser relays the message to the SIP registrar server.
>> When the SIP registrar server responses with "200 OK", Openser server add
>> a record in it own location database.
>>
>> Second register :
>> The UA send a REGISTER request.
>> The UA is in the Openser location database and the session is not expire.
>> Openser responses "200 OK" without forwarding the request to SIP registrar
>> server.
>>
>> I've make a schema with the expected registration flow :
>> http://img225.imageshack.us/img225/930/registerlj0.png.
>>
>> What do you think about it ?
>> Can I do this kind of configuration with existing Openser module ?
>>
>
> is openser acting as registrar as well (for messages 9 and 11)? Practically
> it is possible, but take care of 200ok replies from registrar, because they
> can have expires parameter with the value you updated in REGISTER -- you
> have to restore it back to initial value in order to achieve what you want.
>
> Cheers,
> Daniel
>
>
>> Best Regards,
>>
>> --
>> Julien Mangeard
>> 06.84.39.57.78
>>
>>  --
> http://www.asipto.com
>
>
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