[SR-Users] REGISTER with http_async_client ?

[Karsten Horsmann]

Hi Cyril,

This Kamailio module could imho do the same

https://www.kamailio.org/docs/modules/devel/modules/auth_ephemeral.html


Cyril Ramière <cyril.ramiere at gmail.com> schrieb am Do., 27. Jan. 2022,
08:04:

> Hi there,
>
> I have a weird issue with kamailio (latest docker
> image kamailio-ci:5.5.2-alpine) and http_async_client.
>
> Before posting a lot of logs, let me describe what I want to achieve.
>
> I have a Kamailio and a SIP Phone.
>
> The SIP phone sends a REGISTER to kamailio, then in my routing block, I
> check if I have an Authorization header.
>
> Since I don't have an Authorization (first message), I
> use "www_challenge()".
> This replies to the SIP phone, and then the SIP phone sends a new REGISTER
> with the correct Authorization header.
>
> So far so good.
>
> Now, when I get the REGISTER with Authorization header, I want to ask an
> HTTP endpoint if this user is allowed to connect and check the password
> using http_async_query().
>
> The problem is that when the transaction resumes, the tmx module is
> unhappy and throws this error :
>
> 30(36) CRITICAL: tmx [t_var.c:546]: pv_get_tm_reply_code(): no picked
> branch (-1) for a final response in MODE_ONFAILURE
>
> And a 500 error is sent back to the sip phone.
> The AUTH_REPLY route is still called and I can use the $http* values.
>
> Do you see something that I am doing wrong or missing in my logic?
> Is pausing/resuming to use the async http client is allowed if I'm
> handling a REGISTER transaction?
>
> Here's a simplified version of my routing block (not far from reality):
>
> ##### SNIP
>
> request_route{
>
> route(AUTH);
>
>
> route[AUTH]{
>
>     if (is_method("REGISTER"){
>
>         if(no_auth_header){
>
>             www_challenge("$td","1");
>
>             exit;
>
>         }
>
>         else{
>
>             t_newtran();
>
>             http_async_query("http://xxx.xxx.xxx.xxx:9000/auth?foo=bar", "AUTH_REPLY");
>
>         }
>
>     }
>
> }
>
>
> route[AUTH_REPLY]{
>
>     xlog("L_INFO", "route[HTTP_REPLY]: status $http_rs\n");
>
> }
>
>
> }
>
> ##### END SNIP
>
>
> Best regards!
> __________________________________________________________
> Kamailio - Users Mailing List - Non Commercial Discussions
>   * sr-users at lists.kamailio.org
> Important: keep the mailing list in the recipients, do not reply only to
> the sender!
> Edit mailing list options or unsubscribe:
>   * https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.kamailio.org/pipermail/sr-users/attachments/20220202/a9b8f144/attachment.htm>