13 Mar
2024
13 Mar
'24
7:44 p.m.
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(a)lists.kamailio.org> wrote:
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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(a)lists.kamailio.org>
Sent: Monday, March 11, 2024 7:03 AM
To: Kamailio (SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Cc: James Browne <james(a)frideo.com>
Subject: [SR-Users] Re: append_hf not working
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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(a)lists.kamailio.org> wrote:
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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
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On 11 Mar 2024, at 06:45, Henning Westerholt via
sr-users <sr-users(a)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
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From: Unai Rodriguez via sr-users <sr-users(a)lists.kamailio.org>
Sent: Montag, 11. März 2024 09:33
To: Calvin E. via sr-users <sr-users(a)lists.kamailio.org>rg>; Kamailio
(SER) - Users Mailing List <sr-users(a)lists.kamailio.org>
Cc: Unai Rodriguez <unai(a)rodr.org>
Subject: [SR-Users] Re: append_hf not working Using
https://kamailio.org/docs/modules/stable/modules/textopsx.html#textopsx.f.m…
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(a)lists.kamailio.org>rg>, 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-
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