Perhaps someone knows the rationale behind behavior of forward() that I find
odd.
For example:
ds_select_domain();
forward();
subst('/(To: .*)/To: bla\n/g');
forward();
subst('/(To: .*)/To: bla\n/g');
forward();
subst('/(To: .*)/To: bla\n/g');
This should result in just a substitution of the To-header. In stead, each time
a to-header is added, resulting in the final forwarded sip-messages containing
many to-headers.
Is this a bug? Or am I missing something that forward is supposed to do? It
seems as if it keeps track of a separate sip-message, and adds modifications
there, in stead of replacing them.
In any case, it's this behaviour that is causing troubles implementing the case
as described before.
> Sent: Monday, April 24, 2017 at 3:35 PM
> From: "hdssdsdsdsfsdf hdssdsdsdsfsdf" <[email protected]>
> To: [email protected]
> Subject: [SR-Users] forwarding multiple times
>
> Hi all,
>
> I'm trying to transmit a CANCEL sip message from one server to multiple other
> servers (using ds_select_domain and ds_next_domain). Ideally, I would simply
> use forward() multiple times. The problem is however, that this would apply
> the changes of forward() multiple times too, for example adding multiple
> via-headers. I tried to use forward() for the first transmission and then
> send() for the next ones, but it turns out send() uses the original message
> to send, and not the message as crafted by forward.
>
> As such, it seems I need exactly what's in the middle of these: Either a
> forward that operates on the original message, or a send that operates on the
> message as crafter by previous forward. Does anyone know how to achieve this?
>
> The only other solution I see is to manually write some forwarding routing,
> but it seems tedious to craft the via-headers and fix the domain to be
> forwarded to.
>
> Thanks and cheers,
>
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>
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