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@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
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