[OpenSIPS-Users] dialplan module - ensuring a substring exists in URI

[Bogdan-Andrei Iancu]

Hi Kingsley,

You could try with a single rule, like optional matching the param (like 
"(;user=phone)?") and in subst + repl part do not include the param 
inside the \1 parenthesis, having it added all the time in the repl part.

Still you need a more complex matching if you have multiple params, not 
only the "user" one.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS Bootcamp 2021 online
   https://opensips.org/training/OpenSIPS_eBootcamp_2021/

On 4/20/21 8:16 PM, Kingsley Tart wrote:
> Hi,
>
> I want a DP ruleset to ensure that ";user=phone" is in the SIP URI, ie
> if it is not there, add it, but if it is already there, do nothing.
>
> I've managed to do this with two lines, but is there a more efficient
> way?
>
> This is what I have in the dialplan table in this ruleset?
>
> +----+----------+-------------+-------------+-----------+---------------+
> | pr | match_op | match_exp   | match_flags | subst_exp | repl_exp      |
> +----+----------+-------------+-------------+-----------+---------------+
> |  1 |        1 | ;user=phone |           1 | (.+)      | \1            |
> |  2 |        1 | .           |           1 | (.+)      | \1;user=phone |
> +----+----------+-------------+-------------+-----------+---------------+
>