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<p class="MsoNormal">David,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">There is a difference between sequential branches and parallel branches. Just because you only have one branch at a time, does not mean that you aren’t creating multiple branches, as you’ve seen from your working script.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This solution is almost the best way to do it, except that removing the header in the second branch route is not necessary. Message changes made in branch route only exist in that branch, see the note here [1]. So after the 302 reply the
header will already be gone from the next branch.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">[1] - <a href="https://opensips.org/docs/modules/3.2.x/sipmsgops.html#func_append_hf">
https://opensips.org/docs/modules/3.2.x/sipmsgops.html#func_append_hf</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:black">Ben Newlin </span><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt"><b><span style="font-size:12.0pt;color:black">From:
</span></b><span style="font-size:12.0pt;color:black">Users <users-bounces@lists.opensips.org> on behalf of David Villasmil <david.villasmil.work@gmail.com><br>
<b>Date: </b>Monday, June 14, 2021 at 7:43 PM<br>
<b>To: </b>OpenSIPS users mailling list <users@lists.opensips.org><br>
<b>Subject: </b>Re: [OpenSIPS-Users] Remove previously added header<o:p></o:p></span></p>
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<p class="MsoNormal">Ok i stumbled on to your email from back 2009 asking just about the same thing (<a href="https://users.opensips.narkive.com/W78SWsO9/opensips-users-remove-hf-doesn-t-always-work">https://users.opensips.narkive.com/W78SWsO9/opensips-users-remove-hf-doesn-t-always-work</a>)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I ended up doing <o:p></o:p></p>
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<p class="MsoNormal">t_on_branch("1")<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"># Add the header before sending it out the parameter server<o:p></o:p></p>
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<p class="MsoNormal">branch_route[1] {<br>
append_hf("X-MyHeader: 1\r\n");<br>
}<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">then when actually sending it out to the termination provider:<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">t_on_branch("2");<br>
<br>
# Remove the header before seding it out to the termination<br>
branch_route[2] {<br>
remove_hf("X-MyHeader");<br>
}<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">That's working perfectly!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Is this right or is there a more efficient/easier way to do it?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">David Villasmil<o:p></o:p></p>
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<p class="MsoNormal">email: <a href="mailto:david.villasmil.work@gmail.com" target="_blank">
david.villasmil.work@gmail.com</a><o:p></o:p></p>
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<p class="MsoNormal">phone: +34669448337<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Tue, Jun 15, 2021 at 12:10 AM David Villasmil <<a href="mailto:david.villasmil.work@gmail.com">david.villasmil.work@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Thanks Jeff,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">That's not going to work for me, I don't want to add new branches. <o:p></o:p></p>
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<p class="MsoNormal">What I'm doing is forwarding the call to a sip server that replies with a 302 and some extra headers. <o:p></o:p></p>
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<p class="MsoNormal">I then need to get these headers and continue routing normally, one single branch.<o:p></o:p></p>
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<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">David Villasmil<o:p></o:p></p>
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<p class="MsoNormal">email: <a href="mailto:david.villasmil.work@gmail.com" target="_blank">
david.villasmil.work@gmail.com</a><o:p></o:p></p>
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<p class="MsoNormal">phone: +34669448337<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, Jun 14, 2021 at 11:12 PM Jeff Pyle <<a href="mailto:jeff@ugnd.org" target="_blank">jeff@ugnd.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Add it in a branch_route. That way if you have to route advance, it'll already be gone because you'll be on a new branch.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">- Jeff<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Mon, Jun 14, 2021 at 5:52 PM David Villasmil <<a href="mailto:david.villasmil.work@gmail.com" target="_blank">david.villasmil.work@gmail.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal">Hello guys,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">So, I'm appending a header (append_hf("header")) to a forward.<o:p></o:p></p>
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<p class="MsoNormal">That forward fails and I'm trying to remove it with remove_hf("header"), but it's not getting removed for some reason, what am I doing wrong?<o:p></o:p></p>
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<p class="MsoNormal"><br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal">Thanks everyone!<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">David Villasmil<o:p></o:p></p>
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<p class="MsoNormal">email: <a href="mailto:david.villasmil.work@gmail.com" target="_blank">
david.villasmil.work@gmail.com</a><o:p></o:p></p>
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<p class="MsoNormal">phone: +34669448337<o:p></o:p></p>
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<p class="MsoNormal">_______________________________________________<br>
Users mailing list<br>
<a href="mailto:Users@lists.opensips.org" target="_blank">Users@lists.opensips.org</a><br>
<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><o:p></o:p></p>
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<p class="MsoNormal">_______________________________________________<br>
Users mailing list<br>
<a href="mailto:Users@lists.opensips.org" target="_blank">Users@lists.opensips.org</a><br>
<a href="http://lists.opensips.org/cgi-bin/mailman/listinfo/users" target="_blank">http://lists.opensips.org/cgi-bin/mailman/listinfo/users</a><o:p></o:p></p>
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