Re: xmlrpc-callback syntax

[Richard Fuchs]

On 11/07/2023 11.07, [EXT] Philippe Debreuil wrote:
> Hello,
>
> I am calling rtpengine_offer from kamailio.cfg
> with parameter string "replace-origin replace-session-connection "
> and wish to add " xmlrpc-callback=127.0.0.1:8080"
> to ask rtpengine to send an event when RTP timeout occurs
>
> my question : is my xmlrpc-callback correct ?
>
> thks a lot
>
> PS: I tried using rtpengine command option
> "b2b-url=http://127.0.0.1:8080" and it works
> but not when using xmlrpc-callback inside kamailio.cfg

The value for `xmlrpc-callback` is just an address, without port. It
will be replaced into the URL given as `b2b-url` wherever the %%
wildcard string appears. So something like `b2b-url=http://%%:8080` plus
`xmlrpc-callback=127.0.0.1` should work.

Cheers

[Marcin Kowalczyk]

Hi Richard,

 I have a question - in /etc/rtpengine/rtpengine.conf (quite old one: 12.5.1.9-1) I have 

b2b-url = http://%%:80/RPC

In kamailio rtpengine_manage I add  xmlrpc-callback=preprod-l725nnlsoaao2n3eruklhm9ri5c2s7xt.chte.ch  while capturing ng protcol xmlrpc-callback is there:

15:xmlrpc-callback48:preprod-l725nnlsoaao2n3eruklhm9ri5c2s7xt.chte.ch9:directionl3:ext3:inte5:flagsl18:SIP-source-address13:generate-RTCPe7:replacel6:origine7:call-id20:ic9nrabri32m0naod4c313:received-froml3:IP413:172.20.153.93e8:from-tag10:ahdt93p2906:to-tag13:F2jZ5BZt3Z3ZQ7:command6:answere

but in log I can see warning

Jul 23 11:22:44 rtpengine-eu-ireland-1 rtpengine[3452263]: WARNING: [mi48ragnjvia8ir1eujq]: [core] Failed to parse 'xmlrpc-callback' address 'preprod-l725nnlsoaao2n3eruklhm9ri5c2s7xt.chte.ch'

And callback is not executed.  Does preprod-l725nnlsoaao2n3eruklhm9ri5c2s7xt.chte.ch needs to IP address rather than domain? 

[Richard Fuchs]

It does need to be an address, yes, even though now that you mention it, there really isn't a good reason for that requirement, since lookup would be handled by cURL anyway. Should be an easy change.

Cheers

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