<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
</head>
<body>
<p>I looked in the code and indeed it first takes the values from
headers for Call-Id, To (tag), From (tag), failing if the headers
are not found, but then it updates the values from the flags
parameter. So the call-id can be anything in the headers if you
provide it as "call-id=xyz" parameter.</p>
<p>Maybe the code should be reworked a bit to parse first the flags
parameters and if values are not found for the sip attributes,
then try to get them from headers.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 29.04.21 15:39, Володимир Іванець
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOQgkjaSgc-SBRoprEpFNHKWEXc=Ho+8-y=Rujxuy2=9PBXo8Q@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">I run Kamailio with debug=3 and Rtpengine
with LOG_LEVEL=6.
<div><br>
</div>
<div>Rtpengine logs offers, answers and deletes but there is
nothing when I trigger <i>start_recording</i> with HTTP
request. Below is the full Kamailio log for the request. It
looks to be failing right on the <i>start_recording</i>
function and I don't see any other issues except empty Call-Id
here: "receive_msg(): --- received sip message - request -
call-id: [] - cseq: []".</div>
<div><br>
</div>
<div>I tried to add Call-Id header to my HTTP request and found
out that now rtpengine module will complain about missing To
header. With tries and errors, I specified all required
headers and Rtpengine started call recording:</div>
<blockquote style="margin:0 0 0 40px;border:none;padding:0px">
<div><i>/usr/bin/curl -H "Content-Type: text" "<a
href="http://localhost:8088/CALL_RECORD_START/38687ab466a031d20d852706710d2b4f@127.0.0.1:5080.1"
moz-do-not-send="true">http://localhost:8088/CALL_RECORD_START/38687ab466a031d20d852706710d2b4f@127.0.0.1:5080.1</a>"
-H "Call-Id:
<a class="moz-txt-link-abbreviated" href="mailto:38687ab466a031d20d852706710d2b4f@127.0.0.1:5080.1">38687ab466a031d20d852706710d2b4f@127.0.0.1:5080.1</a>" -H "To:
<a href="http://sip:200-test@127.0.0.1:5060"
moz-do-not-send="true">sip:200-test@127.0.0.1:5060</a>"
-H "From: <<a
href="http://sip:2564286000@127.0.0.1:5080"
moz-do-not-send="true">sip:2564286000@127.0.0.1:5080</a>>;tag=as7a92114c"</i></div>
</blockquote>
<div><br>
</div>
<div>It also looks like rtpengine module does not care about
actual header values. Function <i>start_recording</i> called
with Call-Id value is enough to start call recording even if
all headers contain random invalid values:</div>
<blockquote style="margin:0 0 0 40px;border:none;padding:0px">
<div><i> /usr/bin/curl -H "Content-Type: text" "<a
href="http://localhost:8088/CALL_RECORD_START/6559572e21e08e0a41503ba5779c6604@127.0.0.1:5080.0"
moz-do-not-send="true">http://localhost:8088/CALL_RECORD_START/6559572e21e08e0a41503ba5779c6604@127.0.0.1:5080.0</a>"
-H "Call-Id: does_mot_matter" -H "To: <a
href="http://sip:456@127.0.0.1:5060"
moz-do-not-send="true">sip:456@127.0.0.1:5060</a>" -H
"From: <<a href="http://sip:123@127.0.0.1:5080"
moz-do-not-send="true">sip:123@127.0.0.1:5080</a>>;tag=1"</i></div>
</blockquote>
<div><br>
</div>
<div><b>Thank you very much for your help!</b></div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
<blockquote style="margin:0 0 0 40px;border:none;padding:0px">
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24120]: DEBUG:
<core> [core/ip_addr.c:229]: print_ip():
tcpconn_new: new tcp connection: 127.0.0.1</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24120]: DEBUG:
<core> [core/tcp_main.c:1175]: tcpconn_new(): on
port 42782, type 2, socket 64</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24120]: DEBUG:
<core> [core/tcp_main.c:1498]: tcpconn_add():
hashes: 1710:1616:2551, 1</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24120]: DEBUG:
<core> [core/io_wait.h:375]: io_watch_add(): DBG:
io_watch_add(0xae63a0, 64, 2, 0x7f943ba04ac0), fd_no=50</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24120]: DEBUG:
<core> [core/io_wait.h:600]: io_watch_del(): DBG:
io_watch_del (0xae63a0, 64, -1, 0x0) fd_no=51 called</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24120]: DEBUG:
<core> [core/tcp_main.c:4457]: handle_tcpconn_ev():
sending to child, events 1</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24120]: DEBUG:
<core> [core/tcp_main.c:4130]: send2child():
selected tcp worker idx:0 proc:35 pid:24116 for activity
on [tcp:<a href="http://127.0.0.1:8088"
moz-do-not-send="true">127.0.0.1:8088</a>],
0x7f943ba04ac0</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/tcp_read.c:1749]: handle_io(): received
n=8 con=0x7f943ba04ac0, fd=13</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:610]: parse_msg():
SIP Request:</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:612]: parse_msg():
method: <GET></i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:614]: parse_msg():
uri:
<a class="moz-txt-link-rfc2396E" href="mailto:/CALL_RECORD_START/7a444c165953cf0a196e10e50d0b611e@127.0.0.1:5080.0"></CALL_RECORD_START/7a444c165953cf0a196e10e50d0b611e@127.0.0.1:5080.0></a></i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:616]: parse_msg():
version: <HTTP/1.1></i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:89]:
get_hdr_field(): found end of header</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/receive.c:324]: receive_msg(): ---
received sip message - request - call-id: [] - cseq: []</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
xhttp [xhttp_mod.c:382]: xhttp_handler(): new fake msg
created (286 bytes):</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:610]: parse_msg():
SIP Request:</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:612]: parse_msg():
method: <GET></i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:614]: parse_msg():
uri:
<a class="moz-txt-link-rfc2396E" href="mailto:/CALL_RECORD_START/7a444c165953cf0a196e10e50d0b611e@127.0.0.1:5080.0"></CALL_RECORD_START/7a444c165953cf0a196e10e50d0b611e@127.0.0.1:5080.0></a></i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:616]: parse_msg():
version: <HTTP/1.1></i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/parse_via.c:2639]: parse_via():
end of header reached, state=5</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:498]:
parse_headers(): Via found, flags=2</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:500]:
parse_headers(): this is the first via</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<script>: == TRACE. xhttp:request</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<script>: == TRACE. xhttp:request. HTTP Request
Received</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<script>: == TRACE. xhttp:request. hu is:
/CALL_RECORD_START/7a444c165953cf0a196e10e50d0b611e@127.0.0.1:5080.0</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<script>:
<a class="moz-txt-link-abbreviated" href="mailto:call-id=7a444c165953cf0a196e10e50d0b611e@127.0.0.1:5080.0">call-id=7a444c165953cf0a196e10e50d0b611e@127.0.0.1:5080.0</a></i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/parser/msg_parser.c:89]:
get_hdr_field(): found end of header</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: ERROR:
rtpengine [rtpengine_funcs.c:294]: get_callid(): call-id
not found</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: ERROR:
rtpengine [rtpengine.c:2383]: rtpp_function_call(): can't
get Call-Id field</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
xhttp [xhttp_mod.c:441]: xhttp_send_reply(): sending out
response: 200 OK</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/msg_translator.c:161]:
check_via_address(): (127.0.0.1, 127.0.0.1, 0)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/tcp_main.c:1590]: _tcpconn_find():
found connection by id: 1</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/tcp_main.c:2472]: tcpconn_send_put():
send from reader (24116 (35)), reusing fd</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/tcp_main.c:2706]: tcpconn_do_send():
sending...</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/tcp_main.c:2739]: tcpconn_do_send():
after real write: c= 0x7f943ba04ac0 n=113 fd=13</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/tcp_main.c:2740]: tcpconn_do_send():
buf=</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/usr_avp.c:636]: destroy_avp_list():
destroying list (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/usr_avp.c:636]: destroy_avp_list():
destroying list (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/usr_avp.c:636]: destroy_avp_list():
destroying list (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/usr_avp.c:636]: destroy_avp_list():
destroying list (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/usr_avp.c:636]: destroy_avp_list():
destroying list (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/usr_avp.c:636]: destroy_avp_list():
destroying list (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/xavp.c:539]: xavp_destroy_list():
destroying xavp list (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/xavp.c:539]: xavp_destroy_list():
destroying xavp list (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/xavp.c:539]: xavp_destroy_list():
destroying xavp list (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/receive.c:528]: receive_msg(): cleaning
up</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/io_wait.h:375]: io_watch_add(): DBG:
io_watch_add(0xb2a640, 13, 2, 0x7f943ba04ac0), fd_no=1</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24120]: DEBUG:
<core> [core/tcp_main.c:3793]: handle_ser_child():
read response= 7f943ba04ac0, -1, fd -1 from 35 (24116)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/io_wait.h:600]: io_watch_del(): DBG:
io_watch_del (0xb2a640, 13, -1, 0x10) fd_no=2 called</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/tcp_read.c:1890]: handle_io(): removing
from list 0x7f943ba04ac0 id 1 fd 13, state -1, flags 4028,
main fd -1, refcnt 1 ([127.0.0.1]:42782 ->
[127.0.0.1]:8088)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/tcp_read.c:1671]: release_tcpconn():
releasing con 0x7f943ba04ac0, state -2, fd=13, id=1
([127.0.0.1]:42782 -> [127.0.0.1]:8088)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24116]: DEBUG:
<core> [core/tcp_read.c:1672]: release_tcpconn():
extra_data (nil)</i></div>
<div><i>Apr 29 16:01:47 test /usr/sbin/kamailio[24120]: DEBUG:
<core> [core/tcp_main.c:3560]: handle_tcp_child():
reader response= 7f943ba04ac0, -2 from 0</i></div>
</blockquote>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">чт, 29 квіт. 2021 о 13:17
Daniel-Constantin Mierla <<a
href="mailto:miconda@gmail.com" moz-do-not-send="true">miconda@gmail.com</a>>
пише:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Ohhh, blindly missed the assignment before. You should
run both kamailio and rtpengine with higher debug level
and see if you get any hints from the log messages.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div>On 29.04.21 11:51, Володимир Іванець wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hello Daniel,
<div><br>
</div>
<div>That is correct. My <i>$var(call_id)</i> variable
contains concatenation of the "call-id=" string and a
Call-Id value.</div>
<blockquote style="margin:0px 0px 0px
40px;border:none;padding:0px">
<div><i>Apr 27 18:25:00 test /usr/sbin/kamailio[5347]:
DEBUG: <script>: <a
href="mailto:call-id=3de74068278ede4417086eb82bdf5a06@127.0.0.1:5080.0"
target="_blank" moz-do-not-send="true">call-id=3de74068278ede4417086eb82bdf5a06@127.0.0.1:5080.0</a></i></div>
</blockquote>
<div><br>
</div>
<div>Thank you!</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">чт, 29 квіт. 2021 о
09:58 Daniel-Constantin Mierla <<a
href="mailto:miconda@gmail.com" target="_blank"
moz-do-not-send="true">miconda@gmail.com</a>>
пише:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px
0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div>
<p>Hello,</p>
<p>related to the initial config snippet example,
the call-id is expected to be provide as a named
flag, like:</p>
<p>start_recording("call-id=$var(call_id)");<br>
</p>
<p>See the readme of the rtpengine module for more
details.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div>On 29.04.21 08:23, Володимир Іванець wrote:<br>
</div>
<blockquote type="cite">
<div dir="auto">Hello Richard,
<div dir="auto"><br>
</div>
<div dir="auto">Thank you very much for the
suggestion! I will give it a try.</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">ср, 28 квіт.
2021, 20:00 користувач Richard Fuchs <<a
href="mailto:rfuchs@sipwise.com"
target="_blank" moz-do-not-send="true">rfuchs@sipwise.com</a>>
пише:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px
0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">
<div>
<div>On 28/04/2021 10.53, [ EXT ] Володимир
Іванець wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hello!
<div><br>
</div>
<div>I'm testing call recording with
Rtpengine. It works fine when the
"record-call=on" flag is added to the <i>rtpengine_offer</i>
or <i>start_recording</i> is used in
the <b>request_route</b>.</div>
<div><br>
</div>
<div>But I was wondering if the call
recording can be managed by a separate
application. So I add the following
lines to the <b>event_route[xhttp:request]</b>
and triggered it with an HTTP request
after the call was established. The
call-id value was taken from the
Rtpengine log and sent with the
request.</div>
<blockquote style="margin:0px 0px 0px
40px;border:none;padding:0px">
<div><i> if ($hu =~
"^/CALL_RECORD_START/") {</i></div>
<div><i> $var(call_id) = </i>"call-id="
+ <i>$(hu{s.select,2,/});</i></div>
<div> xlog("L_DBG",
"$var(call_id)");<br>
</div>
<div><i>
start_recording($var(call_id));</i></div>
<div><i> </i>exit;</div>
<div><i> }</i></div>
</blockquote>
</div>
</blockquote>
<p>If you have to reason to go through
Kamailio for this, you can simply trigger
the command from any other external
application. There's a sample script
included in the repo that can be used for
this purpose directly (making use of the
Perl module that is also included): <a
href="https://github.com/sipwise/rtpengine/blob/master/utils/rtpengine-ng-client"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://github.com/sipwise/rtpengine/blob/master/utils/rtpengine-ng-client</a></p>
<p>There's also a nodejs client that I'm
aware of: <a
href="https://github.com/davehorton/rtpengine-client"
rel="noreferrer" target="_blank"
moz-do-not-send="true">https://github.com/davehorton/rtpengine-client</a></p>
<p>Or you can hand-roll the request and talk
to rtpengine via HTTP or Websocket for
example.</p>
<p>Cheers<br>
</p>
</div>
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<br>
<fieldset></fieldset>
<pre>__________________________________________________________
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</pre>
</blockquote>
<pre cols="72">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" moz-do-not-send="true">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank" moz-do-not-send="true">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank" moz-do-not-send="true">www.linkedin.com/in/miconda</a>
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May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone)
* <a href="https://www.asipto.com/sw/kamailio-advanced-training-online/" target="_blank" moz-do-not-send="true">https://www.asipto.com/sw/kamailio-advanced-training-online/</a></pre>
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<pre cols="72">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank" moz-do-not-send="true">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank" moz-do-not-send="true">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank" moz-do-not-send="true">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - Online
May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone)
* <a href="https://www.asipto.com/sw/kamailio-advanced-training-online/" target="_blank" moz-do-not-send="true">https://www.asipto.com/sw/kamailio-advanced-training-online/</a></pre>
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<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Kamailio Advanced Training - Online
May 17-20, 2021 (Europe Timezone) - June 7-10, 2021 (America Timezone)
* <a class="moz-txt-link-freetext" href="https://www.asipto.com/sw/kamailio-advanced-training-online/">https://www.asipto.com/sw/kamailio-advanced-training-online/</a></pre>
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