Hello, append_to_reply() adds the header to the replies generated by Kamailio. A request that is generated by UA after a 3xx does not have to preserve any header received in 3xx, it is a completely new request, the previous one failed. If you handle the 3xx in Kamailio, you can get the headers of the reply in failure route via T_rpl(...) and add them to the request.
Cheers, Daniel On 13.03.24 17:16, Calvin E. via sr-users wrote: > According to a packet capture, changing append_hf() to > append_to_reply() affected a 302 message that Kamailio is forwarding > to sending to itself, but the subsequent INVITE did not keep the > header. What am I missing? > > On Mon, Mar 11, 2024 at 7:28 AM Ben Kaufman via sr-users > <sr-users@lists.kamailio.org> wrote: >> There's also the question of when the header was appended as well, right? >> Calling append_hf() after creating a transaction will only apply that header >> to the current branch, not to subsequent branches. >> >> >> -----Original Message----- >> From: James Browne via sr-users <sr-users@lists.kamailio.org> >> Sent: Monday, March 11, 2024 7:03 AM >> To: Kamailio (SER) - Users Mailing List <sr-users@lists.kamailio.org> >> Cc: James Browne <ja...@frideo.com> >> Subject: [SR-Users] Re: append_hf not working >> >> CAUTION: This email originated from outside the organization. Do not click >> links or open attachments unless you recognize the sender and know the >> content is safe. >> >> >> One pitfall would be to think that this function would add this header field >> to any reply that kamailio would send. This append_hf() function should add >> a header field to a SIP request that it *relays*, but would not add it to a >> response that kamailio *generates* (for that, you would use the >> append_to_reply() function). >> >> James >> >> On Mon, 11 Mar 2024 at 11:26, Alex Balashov via sr-users >> <sr-users@lists.kamailio.org> wrote: >>> Indeed, it has become a bit of a cliché that msg_apply_changes() should be >>> called after append_hf(), uac_replace_from(), etc. >>> >>> This should be dispelled. In the vast majority of use-cases, it is not only >>> unnecessary, but highly undesirable. >>> >>> -- Alex >>> >>>> On 11 Mar 2024, at 06:45, Henning Westerholt via sr-users >>>> <sr-users@lists.kamailio.org> wrote: >>>> >>>> Hello, >>>> the usage of msg_apply_changes is not necessary (not even recommended) >>>> for append_hf (and other functions) to work. The OP was talking about a >>>> packet capture, so I assume that he got the capture after the proxy send >>>> out the message. >>>> Cheers, >>>> Henning >>>> -- Henning Westerholt - >>>> https://sk/ >>>> alatan.de%2Fblog%2F&data=05%7C02%7Cbkaufman%40bcmone.com%7Cb9eabef23 >>>> 1974f061db008dc41c47c6b%7Cafc1818e7b6848568913201b9396c4fc%7C1%7C0%7 >>>> C638457559371077852%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQ >>>> IjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=IUKBac >>>> HQspO1gtJ5B3ZULUOt6oAJKaTMBWM6R%2FDiq1Y%3D&reserved=0 >>>> Kamailio services - https://gilawa.com/ >>>> From: Unai Rodriguez via sr-users <sr-users@lists.kamailio.org> >>>> Sent: Montag, 11. März 2024 09:33 >>>> To: Calvin E. via sr-users <sr-users@lists.kamailio.org>; Kamailio >>>> (SER) - Users Mailing List <sr-users@lists.kamailio.org> >>>> Cc: Unai Rodriguez <u...@rodr.org> >>>> Subject: [SR-Users] Re: append_hf not working Using >>>> https://kamailio.org/docs/modules/stable/modules/textopsx.html#textopsx.f.msg_apply_changes >>>> might be relevant in your case... >>>> With best wishes, Unai Rodriguez >>>> On 11 Mar 2024 at 09:22 +0100, Benoit Panizzon via sr-users >>>> <sr-users@lists.kamailio.org>, wrote: >>>> >>>> Hi Calvin >>>> >>>> >>>> I'm trying to add something simple like the following: >>>> >>>> append_hf("X-testheader: True\r\n", "From"); >>>> >>>> However, I don't see my X-testheader in a packet capture. Are there >>>> any common pitfalls that would prevent append_hf from working as >>>> expected? >>>> >>>> Weird, I use this a lot and it always works. But I never attempted >>>> to specify the header after which it should be appended. Does it >>>> work if you don't specifiy "From"? >>>> >>>> Mit freundlichen Grüssen >>>> >>>> -Benoît Panizzon- >>>> -- >>>> I m p r o W a r e A G - Leiter Commerce Kunden >>>> ______________________________________________________ >>>> >>>> Zurlindenstrasse 29 Tel +41 61 826 93 00 >>>> CH-4133 Pratteln Fax +41 61 826 93 01 Schweiz Web >>>> http://www/ >>>> .imp.ch%2F&data=05%7C02%7Cbkaufman%40bcmone.com%7Cb9eabef231974f061d >>>> b008dc41c47c6b%7Cafc1818e7b6848568913201b9396c4fc%7C1%7C0%7C63845755 >>>> 9371097127%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luM >>>> zIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=fOFt%2BsXu%2FDg >>>> 3EeKqhoRlybWURiVXfz%2B0Di8aSYFWxvQ%3D&reserved=0 >>>> ______________________________________________________ >>>> __________________________________________________________ >>>> Kamailio - Users Mailing List - Non Commercial Discussions To >>>> unsubscribe send an email to sr-users-le...@lists.kamailio.org >>>> Important: keep the mailing list in the recipients, do not reply only to >>>> the sender! >>>> Edit mailing list options or unsubscribe: >>>> __________________________________________________________ >>>> Kamailio - Users Mailing List - Non Commercial Discussions To >>>> unsubscribe send an email to sr-users-le...@lists.kamailio.org >>>> Important: keep the mailing list in the recipients, do not reply only to >>>> the sender! >>>> Edit mailing list options or unsubscribe: >>> >>> -- >>> Alex Balashov >>> Principal Consultant >>> Evariste Systems LLC >>> Web: >>> https://evar/ >>> istesys.com%2F&data=05%7C02%7Cbkaufman%40bcmone.com%7Cb9eabef231974f06 >>> 1db008dc41c47c6b%7Cafc1818e7b6848568913201b9396c4fc%7C1%7C0%7C63845755 >>> 9371101627%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzI >>> iLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=YfdvEmQ5OWU4MOZ6dcj >>> rEP657%2FZ5A0ZA4lDz%2FeWSU2Q%3D&reserved=0 >>> Tel: +1-706-510-6800 >>> >>> __________________________________________________________ >>> Kamailio - Users Mailing List - Non Commercial Discussions To >>> unsubscribe send an email to sr-users-le...@lists.kamailio.org >>> Important: keep the mailing list in the recipients, do not reply only to >>> the sender! >>> Edit mailing list options or unsubscribe: >> __________________________________________________________ >> Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe >> send an email to sr-users-le...@lists.kamailio.org >> Important: keep the mailing list in the recipients, do not reply only to the >> sender! >> Edit mailing list options or unsubscribe: >> __________________________________________________________ >> Kamailio - Users Mailing List - Non Commercial Discussions >> To unsubscribe send an email to sr-users-le...@lists.kamailio.org >> Important: keep the mailing list in the recipients, do not reply only to the >> sender! >> Edit mailing list options or unsubscribe: > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > To unsubscribe send an email to sr-users-le...@lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply only to the > sender! > Edit mailing list options or unsubscribe: -- Daniel-Constantin Mierla (@ asipto.com) twitter.com/miconda -- linkedin.com/in/miconda Kamailio Consultancy, Training and Development Services -- asipto.com Kamailio World Conference, April 18-19, 2024, Berlin -- kamailioworld.com __________________________________________________________ Kamailio - Users Mailing List - Non Commercial Discussions To unsubscribe send an email to sr-users-le...@lists.kamailio.org Important: keep the mailing list in the recipients, do not reply only to the sender! 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