<div dir="ltr">The RLS module uses PUA and Presence module. I think I will do the same. PUA for sending the remote subscribe (+ timer to refresh subscriptions) and Presence for the local subscribes and notifies.<div>I tried using PUA's send_publish for sending an internal publish message so that I could use directly the Presence's handle_publish functions to send the notify to the agents, but I ran into a problem converting the incoming notify message into a publish because I needed the correct If-Match and e-tag headers. And beside that, this would mean two additional messages for each incoming Notify.</div>
<div><br></div><div>Regards</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Thu, Oct 24, 2013 at 10:17 AM, Klaus Darilion <span dir="ltr"><<a href="mailto:klaus.mailinglists@pernau.at" target="_blank">klaus.mailinglists@pernau.at</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">btw: what is the problem with using PUA module?<div class="im"><br>
<br>
On 23.10.2013 15:37, Jan Gaida wrote:<br>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">
Thank you very much for your answer, Klaus.<br>
<br>
The problem with RLS is (like you said) that it's working with<br>
synchronous subscriptions and with asynchronous notifies. But I want to<br>
subscribe only once for each resource and then deliver each Notify<br>
instantaneously.<br>
<br>
Nevertheless, looking at the code of the RLS module has given me new<br>
ideas for the implementation of my presence-proxy. I think I can reuse<br>
quite a big part of it.<br>
<br>
By the way, does anyone know if there is a RFC for a presence proxy like<br>
the one I describe?<br>
<br>
Kind regards<br>
Jan<br>
<br>
<br>
On Wed, Oct 23, 2013 at 9:36 AM, Klaus Darilion<br></div><div><div class="h5">
<<a href="mailto:klaus.mailinglists@pernau.at" target="_blank">klaus.mailinglists@pernau.at</a> <mailto:<a href="mailto:klaus.mailinglists@pernau.at" target="_blank">klaus.mailinglists@<u></u>pernau.at</a>>> wrote:<br>
<br>
MAybe you could implement it with resource lists (RLS module<br>
subscribes to domain B if a lists in domain A is subscribed).<br>
<br>
But above scenario does not reduce the traffic, as for every<br>
subscription to A, a subscription to B is done. This is necessary,<br>
as usually you have authorization at B to verify if the the user is<br>
allowed to subscribe a resource at B.<br>
<br>
regards<br>
Klaus<br>
<br>
<br>
On 22.10.2013 16:24, Jan Gaida wrote:<br>
<br>
Hello<br>
<br>
I'd like to explain my scenario and the module I'd like to<br>
develop. I am<br>
hoping for comments whether there are already modules like that<br>
or which<br>
modules' API I could use to make the development easier.<br>
<br>
Scenario:<br>
I have two domains (A and B) with a Kamailio server in each of them<br>
configured as presence servers. The agents from both domains<br>
want to<br>
subscribe to few resources from domain A.<br>
<br>
Idea:<br>
In order to reduce traffic between the domains, the presence<br>
server from<br>
domain B shall handle the subscriptions internally and use an<br>
internal<br>
virtual presence-user-agent to subscribe to the resources in<br>
domain A.<br>
<br>
SIP Messages:<br>
<br>
Subscription:<br>
1) Subscribe resource.domain.a, from each user agent ua_n.domain.b<br>
2) 202 OK from kamailio.domain.b<br>
3) If not already subscribed, Subscribe resource.domain.a from<br>
kamailio.domain.b with virtual user-agent<br>
4) 202 OK from kamailio.domain.a<br>
<br>
(Repeat for each susbcriber)<br>
(Subscription has to be refreshed by an internal timer)<br>
Events:<br>
1) Publish resouce.domain.a to kamailio.domain.a<br>
2) 200 OK from kamailio.domain.a<br>
3) Notify resource.domain.a to kamailio.domain.b<br>
4) 200 OK from kamailio.domain.b<br>
5) Notify resource.domain.a to each user agent ua_n.domain.b<br>
6) 200 OK from each ua_n.domain.b<br>
<br>
(Internally, Kamailio of domain B has to forward the incoming<br>
Notify to<br>
all locally subscribed user-agents)<br>
<br>
I tried using the PUA module but it does not fit all my needs. Now I<br>
think I will have to develop my own module in order to achieve<br>
everything. Any ideas?<br>
<br>
Kind regards<br>
<br>
--<br>
*Jan **Gaida*<br>
Ingeniero Desarrollo Software<br>
C/ Marconi 3 (PTM)<br>
28760 Tres Cantos<br>
Spain<br>
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<font color="#004054" face="Arial"><b>Jan </b></font><b><font color="#004054" face="Arial">Gaida</font></b><br>
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