[SR-Users] Changing METHOD

[Andreas Granig]

Hi Olle,

On 12/19/2012 02:43 PM, Olle E. Johansson wrote:
> Yeah, I already have Kamailio sending all kinds of crazy stuff while
> testing a new platform,
> using the UAC module. But I wanted to be lazy and change on the fly...
>
> Evil stuff happening here. Kamailio is a good test-tool.
>
> Now I fail to change Contact: headers. The docs for textops say that
> remove_hf can remove
> contact and Remove_hf(Contact) returns true - but the old contact is
> still there!

You could try using msg_apply_changes() from 
http://kamailio.org/docs/modules/stable/modules/textopsx.html#textopsx.msg_apply_changes 
after remove_hf and before actually building your new request with 
$uac_req, but this is really dangerous.

One thing I know for sure is that you better not call record_route() 
anywhere before msg_apply_changes(), as record_route() only adds a hint 
to the message and the value is filled in once the sending socket is 
known (manually setting $fs doesn't seem to help). If you call 
msg_apply_changes() after record_route(), you'll get errors and will end 
up with a broken Record-Route header.

Hope this helps,
Andreas