25 Mar
2022
25 Mar
'22
6:08 p.m.
Hello,
I'm inserting some headers after getting value from http_async_query. If a
call is relayed, I see them. But If I t_suspend and t_continue call (before
time out), I do not see added headers. Here is flow:
route(START)
t_newtran();
#.. prep for query
http_async_query("url","HTTP");
route(HTTP)
#.. collect and using data from query
insert_hf("$var(key): $var(value)\r\n");
t_store();
if (registered("location") {
route(RELAY);
} else {
t_suspend();
exit;
}
route(AWAKE)
t_continue();
I see that the branch index ($T_branch_idx) is 0 at start. 1 after http
query, +1 if there is forking or location. +1 after t_suspend. It looks
like t_continue uses a branch with index after t_suspend. I tried with
t_save_lumps() to carry over changes.
Any idea how to do this?
27 Mar
27 Mar
11:51 p.m.
Hello,
if you are not seeing them in the configuration later on directly, this is expected:
https://www.kamailio.org/wiki/tutorials/faq/main#why_changes_made_to_header…
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com<https://gilawa.com/>
From: sr-users <sr-users-bounces(a)lists.kamailio.org> On Behalf Of Fuad Trle
Sent: Friday, March 25, 2022 4:08 PM
To: sr-users(a)lists.kamailio.org
Subject: [SR-Users] t_suspend / t_continue & insert_hf
Hello,
I'm inserting some headers after getting value from http_async_query. If a call is
relayed, I see them. But If I t_suspend and t_continue call (before time out), I do not
see added headers. Here is flow:
route(START)
t_newtran();
#.. prep for query
http_async_query("url","HTTP");
route(HTTP)
#.. collect and using data from query
insert_hf("$var(key): $var(value)\r\n");
t_store();
if (registered("location") {
route(RELAY);
} else {
t_suspend();
exit;
}
route(AWAKE)
t_continue();
I see that the branch index ($T_branch_idx) is 0 at start. 1 after http query, +1 if there
is forking or location. +1 after t_suspend. It looks like t_continue uses a branch with
index after t_suspend. I tried with t_save_lumps() to carry over changes.
Any idea how to do this?
28 Mar
28 Mar
2:17 p.m.
Hi Henning,
I have tried this, but without success. *This function can be used from
REQUEST_ROUTE or core REPLY_ROUTE.* t_newtrans & http_async_query force me
to enter a new routing block and call fail with "500 I'm terribly sorry,
server error occurred (1/TM)". There is no explicit exit at the end of
route(HTTP) but for some reason execution stopped and did not continue in
request_route.
I don't think I can fulfil those requirements (call function in request
route and before record_route). Suspend is the last option (after location
lookup and parallel forking).
On Sun, Mar 27, 2022 at 10:51 PM Henning Westerholt <hw(a)gilawa.com> wrote:
Hello,
if you are not seeing them in the configuration later on directly, this is
expected:
https://www.kamailio.org/wiki/tutorials/faq/main#why_changes_made_to_header…
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com
*From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Fuad
Trle
*Sent:* Friday, March 25, 2022 4:08 PM
*To:* sr-users(a)lists.kamailio.org
*Subject:* [SR-Users] t_suspend / t_continue & insert_hf
Hello,
I'm inserting some headers after getting value from http_async_query. If a
call is relayed, I see them. But If I t_suspend and t_continue call (before
time out), I do not see added headers. Here is flow:
route(START)
t_newtran();
#.. prep for query
http_async_query("url","HTTP");
route(HTTP)
#.. collect and using data from query
insert_hf("$var(key): $var(value)\r\n");
t_store();
if (registered("location") {
route(RELAY);
} else {
t_suspend();
exit;
}
route(AWAKE)
t_continue();
I see that the branch index ($T_branch_idx) is 0 at start. 1 after http
query, +1 if there is forking or location. +1 after t_suspend. It looks
like t_continue uses a branch with index after t_suspend. I tried with
t_save_lumps() to carry over changes.
Any idea how to do this?
2:30 p.m.
Hi Fuad,
without going too far in kamailio's internals, a resume route is equivalent
to a failure route and, as such, it operates on a "fake" fresh message.
One solution is to use msg_apply_changes() but my general advice is that
all headers and sdp mangling (aka rtpengine invocations) should be done in
branch routes, especially if your routing logic includes
async routes/failure routes.
Federico
On Mon, Mar 28, 2022 at 1:20 PM Fuad Trle <trle.fuad(a)gmail.com> wrote:
Hi Henning,
I have tried this, but without success. *This function can be used from
REQUEST_ROUTE or core REPLY_ROUTE.* t_newtrans & http_async_query force
me to enter a new routing block and call fail with "500 I'm terribly sorry,
server error occurred (1/TM)". There is no explicit exit at the end of
route(HTTP) but for some reason execution stopped and did not continue in
request_route.
I don't think I can fulfil those requirements (call function in request
route and before record_route). Suspend is the last option (after location
lookup and parallel forking).
On Sun, Mar 27, 2022 at 10:51 PM Henning Westerholt <hw(a)gilawa.com> wrote:
Hello,
if you are not seeing them in the configuration later on directly, this
is expected:
https://www.kamailio.org/wiki/tutorials/faq/main#why_changes_made_to_header…
Cheers,
Henning
--
Henning Westerholt – https://skalatan.de/blog/
Kamailio services – https://gilawa.com
*From:* sr-users <sr-users-bounces(a)lists.kamailio.org> *On Behalf Of *Fuad
Trle
*Sent:* Friday, March 25, 2022 4:08 PM
*To:* sr-users(a)lists.kamailio.org
*Subject:* [SR-Users] t_suspend / t_continue & insert_hf
Hello,
I'm inserting some headers after getting value from http_async_query. If
a call is relayed, I see them. But If I t_suspend and t_continue call
(before time out), I do not see added headers. Here is flow:
route(START)
t_newtran();
#.. prep for query
http_async_query("url","HTTP");
route(HTTP)
#.. collect and using data from query
insert_hf("$var(key): $var(value)\r\n");
t_store();
if (registered("location") {
route(RELAY);
} else {
t_suspend();
exit;
}
route(AWAKE)
t_continue();
I see that the branch index ($T_branch_idx) is 0 at start. 1 after http
query, +1 if there is forking or location. +1 after t_suspend. It looks
like t_continue uses a branch with index after t_suspend. I tried with
t_save_lumps() to carry over changes.
Any idea how to do this?
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959
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3 comments
3 participants
participants (3)
-
Federico Cabiddu -
Fuad Trle -
Henning Westerholt