[SR-Users] How to hook to Register And Unregister event in Kamailio
Henning Westerholt
hw at skalatan.de
Wed Jul 24 08:29:53 CEST 2019
Hello Anuran,
things are a bit mixed up here. ;-)
The registrar module brings a pre-defined event-route that you can use to execute your custom cfg script code when the event triggers:
https://www.kamailio.org/docs/modules/5.2.x/modules/registrar.html#idm1028508300
This is a own route, you place it on the same level as other routes like failure_route etc..
The ul_register_ulcb(..) is a C function API. If you like to use this, you need to do some C coding, which is probably not what you want to do. This will not work in the kamailio cfg.
Cheers,
Henning
Am 24.07.19 um 07:29 schrieb Anuran Barman:
Where should I put this line?
ul_register_ulcb("3", "usrloc:contact-expired");
Am I supposed to to put it in request_route{} block ?? If i put it there kamailio fails to start up giving error ERROR: <core> [cfg.y:3235]: yyparse(): cfg. parser: failed to find command ul_register_ulcb (params 2)
On Wed, Jul 24, 2019 at 10:47 AM Anuran Barman <anuranbarman at gmail.com<mailto:anuranbarman at gmail.com>> wrote:
This method looks promising. In the doc its saying last one parameter is the some params which you wanna pass to the callback, how can I pass the expired username to the callback?
On Tue, Jul 23, 2019 at 10:04 PM David Villasmil <david.villasmil.work at gmail.com<mailto:david.villasmil.work at gmail.com>> wrote:
You can register a callback for any events on the usrloc module, i.e.:
ul_register_ulcb("3", "usrloc:contact-expired");
then create a route like:
event_route[usrloc:contact-expired] {
... do your thing here ...
}
I've never had the need to use it, but should work for you
Regards,
David Villasmil
email: david.villasmil.work at gmail.com<mailto:david.villasmil.work at gmail.com>
phone: +34669448337
On Tue, Jul 23, 2019 at 5:26 PM David Villasmil <david.villasmil.work at gmail.com<mailto:david.villasmil.work at gmail.com>> wrote:
you should be able to use usrloc's function:
1.15. ul_register_ulcb(type ,callback, param)
The function register with USRLOC a callback function to be called when some event occures inside USRLOC.
Meaning of the parameters is as follows:
* int types - type of event for which the callback should be called (see usrloc/ul_callback.h).
* ul_cb f - callback function; see usrloc/ul_callback.h for prototype.
* void *param - some parameter to be passed to the callback each time when it is called.
Regards,
David Villasmil
email: david.villasmil.work at gmail.com<mailto:david.villasmil.work at gmail.com>
phone: +34669448337
On Tue, Jul 23, 2019 at 3:23 PM Anuran Barman <anuranbarman at gmail.com<mailto:anuranbarman at gmail.com>> wrote:
yeah it is removing. that sip phone had expiration time more so it was not getting deleted. later I found out. Thanks
On Tue, 23 Jul 2019 at 7:46 PM, David Villasmil <david.villasmil.work at gmail.com<mailto:david.villasmil.work at gmail.com>> wrote:
The module should remove the user's contact when the register expires.
Regards,
David Villasmil
email: david.villasmil.work at gmail.com<mailto:david.villasmil.work at gmail.com>
phone: +34669448337
On Tue, Jul 23, 2019 at 10:07 AM Anuran Barman <anuranbarman at gmail.com<mailto:anuranbarman at gmail.com>> wrote:
db_mode is already set to 2. There is one parameter I saw which is saying about cleaning expired db records so I set it to Enabled.
But it did not change anything.
modparam("usrloc", "db_timer_clean", 1)
On Tue, Jul 23, 2019 at 1:34 PM Henning Westerholt <hw at skalatan.de<mailto:hw at skalatan.de>> wrote:
Hello,
have a look to the db_mode parameter in the usrloc module. You can operate the module in different database modes.
Cheers,
Henning
Am 23.07.19 um 09:48 schrieb Anuran Barman:
So I tried the the Expires header for UNREGISTER and it is working fine. Thanks for that. But the problem is that SIP Phone does not send UNREGISTER event. It only sends REGISTER method periodically. So in my Server it will be always online. So to overcome that I will be running e cron job which will pool the online users from 'location' table of kamailio mysql db. But the problem is, 'location' table does not get updated as soon as possible, rather if I disconnect the SIP Phone and do 'kamctl ul show' it will be still there for like 5 mins, after that it goes away. How can I change the timeout of this,say to 2mins, meaning that after 2mins if there is no response from the client ,Kamailio will mark it as offline. Where to change that parameter?
On Mon, Jul 22, 2019 at 11:20 PM Anuran Barman <anuranbarman at gmail.com<mailto:anuranbarman at gmail.com>> wrote:
Thanks, I will try these out and get back to you.
On Mon, Jul 22, 2019 at 11:18 PM Henning Westerholt <hw at skalatan.de<mailto:hw at skalatan.de>> wrote:
Hello,
you can get the result of the register module "save()" function call from its return value:
https://www.kamailio.org/docs/modules/5.2.x/modules/registrar.html#registrar.f.save and then use a similar logic like you quoted in the initial question.
You can of course also just query the usrloc module with the provide remote function API:
https://www.kamailio.org/docs/modules/5.2.x/modules/usrloc.html#usrloc.r.lookup
This can be called over HTTP, JSON HTTP and others.
Cheers,
Henning
Am 22.07.19 um 14:34 schrieb Anuran Barman:
evapi seems to be complicated and more than necessary for I want to do. Can't I get the successful register and unregister event from config file just like got INVITE event without using it?
On Mon, Jul 22, 2019 at 6:02 PM Anuran Barman <anuranbarman at gmail.com<mailto:anuranbarman at gmail.com>> wrote:
# IP authorization and user authentication
route[AUTH] {
#!ifdef WITH_AUTH
#!ifdef WITH_IPAUTH
if((!is_method("REGISTER")) && allow_source_address()) {
# source IP allowed
return;
}
#!endif
if (is_method("REGISTER") || from_uri==myself) {
xlog("LOG_LOCAL3","L_INFO","authentication request from domain=$ad realm=$ar username=$Au sourceIP=$si agentHeader=$ua");
# authenticate requests
if (!auth_check("$fd", "subscriber", "1")) {
auth_challenge("$fd", "0");
exit;
}
# user authenticated - remove auth header
if(!is_method("REGISTER|PUBLISH"))
consume_credentials();
xlog("LOG_LOCAL3","L_INFO","authentication successful"); <============== At this point can I assume authentication is successful ??
}
# if caller is not local subscriber, then check if it calls
# a local destination, otherwise deny, not an open relay here
if (from_uri!=myself && uri!=myself) {
sl_send_reply("403","Not relaying");
exit;
}
#!endif
return;
}
Kindly look into the snippet above. The bold lettered one. At that point can I assume authentication is successful ??
On Mon, Jul 22, 2019 at 5:58 PM E. Schmidbauer <eschmidbauer at gmail.com<mailto:eschmidbauer at gmail.com>> wrote:
you should be doing some sort of authentication and then saving the user's registration data.
add a route to fire an event when the registration data is saved.
or even better IMO would be to use an event queue like mqueue and rtimer to push events into a queue and process them with rtimer and evapi
On Mon, Jul 22, 2019 at 7:46 AM Anuran Barman <anuranbarman at gmail.com<mailto:anuranbarman at gmail.com>> wrote:
But it does not tell me if thats a successful register. I can make the user online but may be the request fails as credentials are wrong. So the REGISTER is not successful. How can I handle that?
On Mon, 22 Jul 2019 at 5:14 PM, David Villasmil <david.villasmil.work at gmail.com<mailto:david.villasmil.work at gmail.com>> wrote:
Just as you do is_method(“INVITE”) you can do is_method(“REGISTER”) after that you can check the EXPIRE, if it is zero then it is an UN-REGISTER.
On Mon, 22 Jul 2019 at 12:35, E. Schmidbauer <eschmidbauer at gmail.com<mailto:eschmidbauer at gmail.com>> wrote:
here is a good example of how you can use evapi in kamailio:
http://kb.asipto.com/kamailio:k43-async-sip-routing-nodejs#evapi_processing
here is a good example of how you can implement it with a go app:
https://github.com/cgrates/kamevapi
On Mon, Jul 22, 2019 at 7:18 AM Anuran Barman <anuranbarman at gmail.com<mailto:anuranbarman at gmail.com>> wrote:
It seems like this module is useful for making the connection/message flow. But that I need when I have the events of Register and unregister. How to get the events from this module?
On Mon, Jul 22, 2019 at 3:51 PM Anuran Barman <anuranbarman at gmail.com<mailto:anuranbarman at gmail.com>> wrote:
Though I have already a NodeJS server running, I will try the evapi module. If there are some tutorial/Wiki on how to do this please share that with me. That will be great help.
On Mon, Jul 22, 2019 at 3:39 PM E. Schmidbauer <eschmidbauer at gmail.com<mailto:eschmidbauer at gmail.com>> wrote:
I would recommend using `evapi` for something like this
You could build a small go app that connects via evapi and send/receive events to/from kamailio.
On Mon, Jul 22, 2019 at 3:07 AM Anuran Barman <anuranbarman at gmail.com<mailto:anuranbarman at gmail.com>> wrote:
Hi,
I am integrating Kamailio into my application. I want to hook to the successful REGISTER and unregister event into Kamailio into my application. For now, I am able to hook into INVITE event and can hit my server to send a email to the callee user that user X is calling you. The way I am doing is by this
if (is_method("INVITE")) {
xlog("LOG_LOCAL3","L_INFO","invite came ($fU) ($tU)");
$var(res) = http_connect("sipnodejsserver", "/","text/plain","src_user:$fU,dst_user:$tU" ,"$avp(route)");
xlog("LOG_LOCAL3","L_INFO","request sent $avp(route) $var(res)");
setflag(FLT_ACC); # do accounting
}
I need to show into my application that their SIP phone is online or not. How can I hook into this?
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Regards,
David Villasmil
email: david.villasmil.work at gmail.com<mailto:david.villasmil.work at gmail.com>
phone: +34669448337
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--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services
--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services
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_______________________________________________
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--
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services
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