From miconda@gmail.com Wed Oct  3 12:40:26 2012
From: Daniel-Constantin Mierla <miconda@gmail.com>
To: sr-users@lists.kamailio.org
Subject: Re: [SR-Users] kamailio and app_python
Date: Wed, 03 Oct 2012 12:40:16 +0200
Message-ID: <506C1610.6030309@gmail.com>
In-Reply-To:
 <CAAgy_Vk=nBOckZR3Xnoh++BT7MMF4Mn2KtaboBKU6Tjwe7rsTA@mail.gmail.com>
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="===============0540831266=="

--===============0540831266==
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable

Hello,

the best would be to enhance the module to be able to get/set=20
pseudo-variables. I am not a python guy at all, so I cannot help much,=20
however I can assist with the C side in kamailio if someone starts=20
development and has questions about PVs.

Calling config functions with parameters from embedded interpreters=20
exposes the risk of memory leaks, so it is better to avoid it. Anyhow,=20
added headers are not visible immediately (even when done form config=20
file), unless you call msg_apply_changes().

As a workaround for now, I suggest you put your token somehow in request=20
uri (e.g., a parameter).

Cheers,
Daniel

On 10/1/12 9:53 AM, Victor Seva wrote:
> Hi,
>
> is there any way to return values from a call to python_exec function
> orther than the default returned integer?
>
> Following code generates this error:
> Oct  1 09:08:23 zskio /usr/sbin/kamailio[21789]: ERROR: app_python
> [python_support.c:38]: python_exec2: Unhandled exception in the Python
> code:
> Oct  1 09:08:23 zskio /usr/sbin/kamailio[21789]: ERROR: app_python
> [python_support.c:78]: #011RuntimeError: no such function
>
>                  if (!python_exec("get_provider",
> $(var(clean_uri){s.prefixes}))) {
>                          xlog("L_ERR","Can not choose a provider for $rU\n"=
);
>                          sl_send_reply("503","Can not choose a provider
> for $rU");
>                          exit;
>                  }
>
>
> def get_provider(self, msg, param):
>          # snipped code...
>          result =3D self.util.get_provider(prefixes, position, mode)
>          if result is not None:
>              LM_ERR("mode: %s position: %d result: %s" % (mode,
> position, result))
>              # this raises error
>              msg.call_function('rewritehost', result['provider']['ip'])
>              return 1
>          return -1
>
> I tried to use headers as transport but this simple code does not work:
>
> Oct  1 09:45:31 zskio /usr/sbin/kamailio[22303]: ERROR: <script>: No header
>
>                  if (!is_present_hf("X-Test-header")) {
>                          xlog("L_ERROR", "No header\n");
>                  }
>                  else {
>                          xlog("L_INFO", "Header added\n");
>                  }
>
>      def test_set_header(self, msg):
>          msg.call_function('append_hf', 'X-Test-header: test\r\n')
>          return 1
>
> Thanks in advance.
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
> sr-users(a)lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

--=20
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u=
/katu



--===============0540831266==--