Klaus Darilion wrote:
Ardjan Zwartjes wrote:
Probably now the answer you want to hear, but: Why not adding the
header in the branch route instead of changing?
Because in fact I'm developing several related modules with 1 core
module. 1. The core module initializes the header with some information.
2. Optionally one of the extra modules adds some extra information in
the branch route.
So even when nothing happens in the branch route the header should
exist.
Maybe you can work around by using AVPs to signal values from core to
related modules and let the header be added by the related module.
this is a possibility - make sure that the branch route is used on all
the case and add the header only there.
Another workaround would be to process the lumps and then re-parse the
message (as it would be needed for SIP Identity)
I think this is a too complicate approach for this purpose. Plus there
are no means to do it and it does pay the effort (in this case)
regards,
bogdan
regards
klaus
Ardjan Zwartjes wrote:
I'm currently working on a OpenSER module for which I need the
following
functionality:
1. In the "route" block in the configuration an initialize
function is
called which adds a header using something similar to
append_hf from
the textops module, for example say it adds the header
"X-Test: test".
2. The scripts performs some functions and branches the call. 3. In
the branch_route I want to change the "X-Test" header to
another value
based om some data gathered by my module.
I hoped this would be a simple task, but so far I haven't
been able to
implement this. This is the problem:
- append_hf uses insert_new_lump_before() to add the new
header to the
msg->add_rm or msg->body_lumps lump lists, so a subsequent textops
msg->calls
like remove_hf call won't find the header.
- I have circumvented this problem by creating a function that also
looks through the msg->add_rm and msg->body_lumps lists and if
necessary changes the lump->u.value to a new string so a different
header will be added. This works as long as I do this in the route
block.
- If I call this function in the branch_route however the
lump that adds
the header cannot be found but the header also isn't
accessible through
the msg->headers list (even when it's fully parsed).
So my question is: Does anybody knows what I need to do to change a
header that was added in the route block to a new value in the
branch_route? Thanks in advance!
Kind regards,
Ardjan Zwartjes.
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