<html><head></head><body><div class="ydp73616616yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><div></div>
        <div>Hi Bogdan,</div><div><br></div><div>I tried scrip_trace function and it also indicate same behavior, I can see the value of $tu but it still gives the error. Interesting thing is, it evaluates to true and invokes the remove() function as well.<br></div><div><br></div><div><span>Nov 16 16:06:46  /usr/sbin/opensips[16582]: [Script Trace][/etc/opensips/opensips.cfg:814][reg-debug][core if] -> (REGISTER from Y.Y.Y.Y F=sip:XXX@x.x.x.x, T=sip:XXX@x.x.x.x ID=cd7921be-54514c80@v.v.v.v#012)<br>Nov 16 16:06:46  /usr/sbin/opensips[16582]: ERROR:core:comp_scriptvar: cannot get left var value<br>Nov 16 16:06:46  /usr/sbin/opensips[16582]: WARNING:core:do_action: error in expression at /etc/opensips/opensips.cfg:814<br><span>Nov 16 16:06:52  /usr/sbin/opensips[16582]: [Script Trace][/etc/opensips/opensips.cfg:815][reg-debug][module remove] -> (REGISTER from Y.Y.Y.Y F=sip:XXX@x.x.x.x, T=sip:XXX@x.x.x.x ID=4afba829-fef90105@v.v.v.v#012)<br><br></span><span><span> /etc/opensips/opensips.cfg:814</span></span><br><span>    if ( $tu != NULL ) {<br>        remove("location","$tu");<br>    }<br><br></span><br></span> <br></div><div><br></div>
        
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                    On Thursday, 15 November 2018, 5:25:54 PM GMT+5:30, Bogdan-Andrei Iancu <bogdan@opensips.org> wrote:
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    <tt>Hi Pasan,<br clear="none">
      <br clear="none">
      Indeed, the logs show that the TO hdr is successfully parsed - are
      you 100% sure about the reported line ? maybe it is not the $tu
      related ? try to activate the script_trace()
      [<a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-freetext" target="_blank" href="http://www.opensips.org/Documentation/Script-CoreFunctions-2-4#toc42">http://www.opensips.org/Documentation/Script-CoreFunctions-2-4#toc42</a>]
      function to see when exactly the error is generated. Maybe you can
      actually print $tu before, to see what you get.<br clear="none">
      <br clear="none">
      Regards,<br clear="none">
    </tt>
    <pre class="yiv6826873149moz-signature">Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  <a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-freetext" target="_blank" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>
OpenSIPS Bootcamp 2018
  <a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-freetext" target="_blank" href="http://opensips.org/training/OpenSIPS_Bootcamp_2018/">http://opensips.org/training/OpenSIPS_Bootcamp_2018/</a>
</pre>
    <div class="yiv6826873149yqt2782136675" id="yiv6826873149yqt55121"><div class="yiv6826873149moz-cite-prefix">On 11/15/2018 10:04 AM, Pasan Meemaduma
      wrote:<br clear="none">
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        <div>Hi Bogdan,</div>
        <div><br clear="none">
        </div>
        <div>I'm not seeing any other related error msg prior to this.
          I'm calling this test in request route for a REGISTER request.
          Before the error pops up I could see the received msg
          successfully parse by opensips and can see value of To uri</div>
        <div><br clear="none">
        </div>
        <span>Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_msg: SIP Request:<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_msg:  method:  <REGISTER><br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_msg:  uri:     <a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-rfc2396E"><sip:xx.xx.xx.xx></a><br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_msg:  version: <SIP/2.0><br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_headers: flags=2<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_via_param: found param type 232, <branch>
          = <z9hG4bK-24790813>; state=16<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_via: end of header reached, state=5<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_headers: via found, flags=2<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_headers: this is the first via<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:receive_msg: After parse_msg...<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:receive_msg: preparing to run routing scripts...<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_headers: flags=100<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:_parse_to: end of header reached, state=10<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:_parse_to: display={XXXXXXXXXX},
          ruri={<a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-freetext">sip:XXXXXXXXXX@xx.xx.xx.x</a>}<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:get_hdr_field: <To> [48];
          uri=[<a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-freetext">sip:XXXXXXXXXX@x.x.x.x</a>]<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:get_hdr_field: to body [XXXXXXXXXX
          <a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-rfc2396E"><sip:XXXXXXXXXX@x.x.x.x></a>#015#012]<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:get_hdr_field: cseq <CSeq>: <79474>
          <REGISTER><br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:maxfwd:is_maxfwd_present: value = 70<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_to_param: tag=46474fbe5728f700o0<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:_parse_to: end of header reached, state=29<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:_parse_to: display={XXXXXXXXXX},
          ruri={<a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-freetext">sip:XXXXXXXXXX@x.x.x.x</a>}<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:parse_headers: flags=200<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:get_hdr_field: content_length=0<br clear="none">
          Nov 15 18:19:19  /usr/sbin/opensips[21608]:
          DBG:core:get_hdr_field: found end of header<br clear="none">
          <br clear="none">
        </span>
        <div>and following are the line that I get before the error If I
          set log level to 6</div>
        <div><br clear="none">
        </div>
        <div><span>Nov 15 18:19:19  /usr/sbin/opensips[21608]:
            DBG:core:parse_headers: flags=ffffffffffffffff<br clear="none">
            Nov 15 18:19:19  /usr/sbin/opensips[21608]:
            DBG:core:parse_headers: flags=ffffffffffffffff<br clear="none">
            Nov 15 18:19:19  /usr/sbin/opensips[21608]:
            DBG:core:parse_headers: flags=ffffffffffffffff<br clear="none">
            Nov 15 18:19:19  /usr/sbin/opensips[21608]:
            ERROR:core:comp_scriptvar: cannot get left var value<br clear="none">
            Nov 15 18:19:19  /usr/sbin/opensips[21608]:
            WARNING:core:do_action: error in expression at
            /etc/opensips/opensips.cfg:807<br clear="none">
            <br clear="none">
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          <span></span></div>
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        <div> <br clear="none">
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          <div> On Wednesday, 14 November 2018, 7:19:44 PM GMT+5:30,
            Bogdan-Andrei Iancu <a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-rfc2396E" ymailto="mailto:bogdan@opensips.org" target="_blank" href="mailto:bogdan@opensips.org"><bogdan@opensips.org></a> wrote: </div>
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            <div id="yiv6826873149">
              <div> <tt>Hi Pasan,<br clear="none">
                  <br clear="none">
                  It should be fine if $tu would translate to NULL. The
                  script handles this case. But I'm afraid you have
                  something else there, like another deeper error that
                  prevents the $tu variable to be evaluated.<br clear="none">
                  <br clear="none">
                  Do you see any other errors before the mentioned ones
                  ? what is the type of route where you do the test ?<br clear="none">
                  <br clear="none">
                  Regards,<br clear="none">
                </tt>
                <pre class="yiv6826873149moz-signature">Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  <a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-freetext" target="_blank" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a>
OpenSIPS Bootcamp 2018
  <a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-freetext" target="_blank" href="http://opensips.org/training/OpenSIPS_Bootcamp_2018/">http://opensips.org/training/OpenSIPS_Bootcamp_2018/</a>
</pre>
                <div class="yiv6826873149yqt7013559868" id="yiv6826873149yqtfd58933">
                  <div class="yiv6826873149moz-cite-prefix">On
                    11/13/2018 10:56 AM, Pasan Meemaduma via Users
                    wrote:<br clear="none">
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                      <div>Hey,</div>
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                      <div>Anyone have a suggestion for this?<br clear="none">
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                      <div style="font-family:'Helvetica Neue', Helvetica, Arial, sans-serif;font-size:13px;color:#26282a;">
                        <div> On Thursday, 8 November 2018, 8:09:50 AM
                          GMT+5:30, Pasan Meemaduma <a rel="nofollow" shape="rect" class="yiv6826873149moz-txt-link-rfc2396E" ymailto="mailto:pasandev@ymail.com" target="_blank" href="mailto:pasandev@ymail.com"><pasandev@ymail.com></a>
                          wrote: </div>
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                              <div class="yiv6826873149ydp12152f82yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">Hi Guys,</div>
                              <div class="yiv6826873149ydp12152f82yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><br clear="none">
                              </div>
                              <div class="yiv6826873149ydp12152f82yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;">I have a
                                check for NULL for $tu var in the
                                script, But when the value is missing
                                I'm getting the following error.</div>
                              <div class="yiv6826873149ydp12152f82yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><br clear="none">
                              </div>
                              <div class="yiv6826873149ydp12152f82yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:16px;"><span>ERROR:core:comp_scriptvar:
                                  cannot get left var value<br clear="none">
                                  <br clear="none">
                                </span>
                                <div><span>WARNING:core:do_action: error
                                    in expression at
                                    /etc/opensips/opensips.cfg:806</span></div>
                                <div><span><br clear="none">
                                  </span></div>
                                <div><span>and line 806 contains
                                    following.</span></div>
                                <div><span><br clear="none">
                                  </span></div>
                                <div><span><span>    if ( $tu != NULL )
                                      {<br clear="none">
                                              remove("location","$tu");<br clear="none">
                                          }<br clear="none">
                                      <br clear="none">
                                    </span></span>
                                  <div><span>any suggestion on how to
                                      test for NULL values without
                                      getting above error. I'm using
                                      opensips 2.3.5</span></div>
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                    <pre>_______________________________________________
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</pre>
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