Ok. solved

I moved record_route for subscribe to other part of the config file and for now if msg_apply_changes() works
so if someone intrested in solution:

For me it works like this

 if(is_method("SUBSCRIBE")) {
  
     if ( $pr == "wss" ) {
        xlog("L_INFO", "$rm from WSS proto. contact : $ct ");
        remove_hf("Contact");
        append_hf("Contact:<sip:$fU@$si:$sp;transport=ws>\r\n");
        msg_apply_changes();
        xlog("L_INFO", "New contact : $ct ");
        $fs = "tls:"+INTERNALIP+":7443";
      }

      handle_subscribe();
      t_release();
    
This code saves valid contact at the active_watchers table for this SUBSCRIBE request and generates NOTIFY  via correct transport.


2017-10-11 22:00 GMT+03:00 Yuriy Gorlichenko <ovoshlook@gmail.com>:
Continue talking with myself... ))

Found when presence building NOTIFY request it uses entry from active_watchers table for sending NOTIFY
When SUBSCRIBE from webPhone receives by kamailio it stors it like this

presentity_uri                                                | watcher_username     | watcher_domain                       | to_user              | to_domain                            | event    | event_id | to_tag                                | from_tag         | callid                           | local_cseq | remote_cseq | contact                                                                                    | record_route | expires    | status | reason | version | socket_info            | local_contact          | from_user            | from_domain                          | updated | updated_winfo | flags | user_agent                  |
sip:8dc08f881f2105dD3d75@d0c20d13-e5b4-4649-821e-9ab8ec94b141  | 94e51c30Bdf28de52519 | d0c20d13-e5b4-4649-821e-9ab8ec94b141 | 8dc08f881f2105dD3d75 | d0c20d13-e5b4-4649-821e-9ab8ec94b141 | presence |          | 65b96bb6fd203a89fdddc27e45e37497-709f | vbr8o327n1       | 6qgtaasruts2tqsib3rk             |          1 |        9634 | sip:94e51c30bdf28de52519@95.29.8.36:55404;gr=urn:uuid:305d99ab-ddf2-46b0-9ec0-74a1eef86595 |              | 1507746863 |      1 |        |       2 | tls:172.31.13.191:7443 | sip:1.2.3.4:5060       | 94e51c30Bdf28de52519 | d0c20d13-e5b4-4649-821e-9ab8ec94b141 |      -1 |            -1 |     0 | SIP.js/0.7.3                |

so it says nothing about that watcher at the websockets


Then i see it builds NOTIFY request using these params:

   DEBUG: presence [notify.c:1479]: send_notify_request(): dialog info:
   DEBUG: presence [notify.c:122]: printf_subs(): pres_uri: sip:8dc08f881f2105dD3d75@d0c20d13-e5b4-4649-821e-9ab8ec94b141
   DEBUG: presence [notify.c:123]: printf_subs(): watcher_user@watcher_domain: 94e51c30Bdf28de52519@d0c20d13-e5b4-4649-821e-9ab8ec94b141
   DEBUG: presence [notify.c:124]: printf_subs(): to_user@to_domain: 8dc08f881f2105dD3d75@d0c20d13-e5b4-4649-821e-9ab8ec94b141
   DEBUG: presence [notify.c:125]: printf_subs(): from_user@from_domain: 94e51c30Bdf28de52519@d0c20d13-e5b4-4649-821e-9ab8ec94b141
   DEBUG: presence [notify.c:126]: printf_subs(): callid/from_tag/to_tag: 11ml332armq1sdjjhr4i/adkeanjkns/65b96bb6fd203a89fdddc27e45e37497-92c7
   DEBUG: presence [notify.c:127]: printf_subs(): local_cseq/remote_cseq: 1/9417
   DEBUG: presence [notify.c:128]: printf_subs(): local_contact/contact: sip:1.2.3.4:5060/sip:94e51c30bdf28de52519@95.29.8.36:63502;gr=urn:uuid:ad169d10-dc89-48e3-9a83-28635a77f216
   DEBUG: presence [notify.c:129]: printf_subs(): record_route:
   DEBUG: presence [notify.c:130]: printf_subs(): sockinfo_str: tls:172.31.13.191:7443
   DEBUG: presence [notify.c:132]: printf_subs(): event: presence
   DEBUG: presence [notify.c:133]: printf_subs(): status: active
   DEBUG: presence [notify.c:134]: printf_subs(): reason:
   DEBUG: presence [notify.c:135]: printf_subs(): version: 2
   DEBUG: presence [notify.c:136]: printf_subs(): expires: 599


So i suppose it sending to UPD because at the contact field at the database stores  nothing about transport (like postfix ;transport=ws)
And does not matter how I handle contact at NAT (by fix_nated_contact() or add_contact_alias()) because it stores just a source IPaddress and port.  

fix_nated_register() will not help to fix this issue because it is just updates location and uses avp(RECEIVED) for storing real address and real transport which never have any entry to the "active_watchers" table.

So the only way i found to say where to send notify is to change $ct variable with adding postfix ";transport=ws"
Because based on it module wil build NOTIFY

but here are 2 troubles
1) $ct variable is readonly (remove and append contact header has no any effect for this. msg_apply_changes says:
          "cannot apply msg changes after adding record-route header - it breaks conditional 2nd header")
2) as i said i can not change anything at the tm:local-request for notify as i wrote at the prevoius messages here. IT changes needed variables but it has no effect on message

So main question - how to save real transport at the contct field at the active_watchers table.

Will be happy to any suggession.




2017-10-11 13:13 GMT+03:00 Yuriy Gorlichenko <ovoshlook@gmail.com>:
Hi. Got debug 3 information and found next (here is pastebin link with dump
https://pastebin.com/ALHQkM9E)

After NOTIFY was created i trying to handle it by tm:local-request route
and found there one thing afnter changed $fs and $ru with $du

DEBUG: tm [uac.c:329]: t_run_local_req(): apply new updates without Via to sip msg

as i understood it applies changes but not uses it for redirect request throught needed socket.
Shoud i use msg_apply_changes() or something ike that?





2017-10-04 16:13 GMT+03:00 Yuriy Gorlichenko <ovoshlook@gmail.com>:
May be debug=3 level says more? I will try to collect it. I don't think it is a bug. I think somethig wrong at  my side, but can not find anything

2017-10-04 14:58 GMT+03:00 Yuriy Gorlichenko <ovoshlook@gmail.com>:
I mean i tried to change $du and print it. It was changed but notify was set to original ruri. I know that it worked for register requests and invite. I built services using it.

I found this trouble only with NOTIFY

On Oct 4, 2017 14:35, "Daniel-Constantin Mierla" <miconda@gmail.com> wrote:

Can you print $du there and see if it set? looks like it is not routed by r-uri, but dst uri.

Cheers,
Daniel


On 03.10.17 22:58, Yuriy Gorlichenko wrote:
Found that at the tm:local-request $ru modifies but anyway - request sent to old RURI.
 INFO: NOTIFY to WS, update RURI

-- here is making
$ru = $ru+";transport=ws";
---


--- for now $ru is updated

-- but here also same result:



2017-10-03 21:31 GMT+03:00 Yuriy Gorlichenko <ovoshlook@gmail.com>:
Can not find any entry of this device at the active watchers.
Suppose after module found sockets mistmatch and didnt got NOTIFY response it removes entry from active watchers...

I added handling at the event route as you sugested and tried to do next

Firs i tried fix $ru here but it does not work
Also tried to force socket but same


I see at the logs that first kamailio says about proto mistmatch and only then calling  event_route[tm:local-request]...

This is my log with most important variables for understanding

  INFO: <script>: ---------------------------------------
  INFO: <script>: #012SUBSCRIBE | source: 93.81.99.68:57031,
  INFO: <script>: #012SUBSCRIBE | proto: wss,
  INFO: <script>: #012SUBSCRIBE | RURI: sip:8dc08f881f2105dD3d75@d0c20d13-e5b4-4649-821e-9ab8ec94b141,
  INFO: <script>: #012SUBSCRIBE | contact: <sip:94e51c30bdf28de52519@d0c20d13-e5b4-4649-821e-9ab8ec94b141;gr=urn:uuid:14f23c6c-166f-4649-9b7e-71a66b20450f>
  INFO: <script>: #012SUBSCRIBE | from : 94e51c30Bdf28de52519
  INFO: <script>: #012SUBSCRIBE | to : 8dc08f881f2105dD3d75
  INFO: <script>: ---------------------------------------
  INFO: <script>: SUBSCRIBE : fixing nated contact
  INFO: <script>: SUBSCRIBE from WSS proto

----- Here is handle_subscribe happens

  WARNING: <core> [core/forward.c:231]: get_send_socket2(): protocol/port mismatch (forced tls:172.31.13.191:7443, to udp:93.81.99.68:57031)

----  event_route[tm:local-request]

  INFO: <script>: ---------------------------------------
  INFO: <script>: #012NOTIFY | source: 172.31.13.191:5060,
  INFO: <script>: #012NOTIFY | proto: udp,
  INFO: <script>: #012NOTIFY | RURI: sip:94e51c30bdf28de52519@93.81.99.68:57031;gr=urn:uuid:14f23c6c-166f-4649-9b7e-71a66b20450f,
  INFO: <script>: #012NOTIFY | contact: <sip:34.192.121.47:5060;transport=tls>
  INFO: <script>: #012NOTIFY | from : 8dc08f881f2105dD3d75
  INFO: <script>: #012NOTIFY | to : 94e51c30Bdf28de52519
  INFO: <script>: ---------------------------------------
  INFO: <script>: NOTIFY to WS, forsing socket to TLS

---- here is i trying to fix $ru and $fs

  INFO: presence [notify.c:1619]: send_notify_request(): NOTIFY sip:94e51c30Bdf28de52519@d0c20d13-e5b4-4649-821e-9ab8ec94b141 via sip:94e51c30bdf28de52519@93.81.99.68:57031;gr=urn:uuid:14f23c6c-166f-4649-9b7e-71a66b20450f on behalf of sip:8dc08f881f2105dD3d75@d0c20d13-e5b4-4649-821e-9ab8ec94b141 for event presence : 8n0erm4mtff6pn9ljgdq




2017-10-03 18:43 GMT+03:00 Daniel-Constantin Mierla <miconda@gmail.com>:

Hello,

you should use set_contact_alias() for subscribe instead of fixed_nated_contact(), is a better option.

Back to the reported topic, can you paste here the db record from active_watchers table?

Then, you should be able to update some parts of the local generated requests by having an event_route[tm:local-request] block in your kamailio.cfg.

Cheers,
Daniel


On 03.10.17 10:44, Yuriy Gorlichenko wrote:
Also found at the lists some solutions like "accept fix_nated_register() and fix_nated_contact() for REGISTER and SUBSCRIBE"

Done it. But still protos mistmatch...

kamailio founds tls:myip:myport and forces t to udp...

2017-10-03 10:49 GMT+03:00 Yuriy Gorlichenko <ovoshlook@gmail.com>:
Hi. I have presence server and it works fine for UDP/TCP/TLS endpoints.
For now i have new one type of endpoints that runs via WebSockets

It sends SUBSCRIBE request to the and then after handle_subscribe() NOTIFY not comes to the subscriber because of 
[core/forward.c:231]: get_send_socket2(): protocol/port mismatch 

I already had some issues regarding this for ACK for example but i resolved it cimply doing

$ru = $ru+";transport=wss"

but NOTIFY sending is internal process and can't be controlled by config file. So i can not change $ru for NOTIFY directly. 

Any ideas how to fix this?



_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users


-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - www.asipto.com
Kamailio World Conference - www.kamailioworld.com



-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - www.asipto.com
Kamailio World Conference - www.kamailioworld.com