[SR-Users] Substitution of Contact Header

[Daniel-Constantin Mierla]

Hello,

if you use more operations over the headers, they do not override each
other, they typically add to the content. Use msg_apply_changes()
between such operations, see:

  *
https://www.kamailio.org/wiki/tutorials/faq/main#why_changes_made_to_headers_or

Cheers,
Daniel

On 07.04.20 09:17, Mack Hendricks wrote:
> Hey Daniel,
>
> I hope all is well!
>
> I tried to make it super simple
>
> The regular expression is this:
>
> subst_hf("Contact", "/@.*>/@107.21.184.251>/", "a”);
>
> The Contact looks like this
>
> Contact: <sip:3135421245 at 10.0.0.140:53349;alias=98.209.240.245~53349~1>
>
> It ends up like this (it concatenates it)
>
> Contact:
> <sip:3135421245 at 10.0.0.140:53349;alias=98.209.240.245~53349~1 at 107.21.184.251>
>
> I really want this
>
> Contact: <sip:3135421245 at 107.21.184.251>
>
> I do call Nathelper functions in some cases.  I can comment those out.
>  What am I missing?
>
>
>> On Apr 7, 2020, at 2:54 AM, Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>>
>> Hello,
>>
>> what is the result? Do you use other functions that may change the
>> contact (like those from nathelper)?
>>
>> Cheers,
>> Daniel
>>
>> On 06.04.20 15:34, Mack Hendricks wrote:
>>> Hey All,
>>>
>>> I always have issues with substituting out header values.  I’ve
>>> tried subst and subst_hf.   
>>>
>>> Here is the value that I want to change out:
>>>
>>> Contact:
>>> <sip:52.41.52.34:5060;line=sr-h06Cy7RYRFkYacM0a7epa7sVa7sVRcNCW7IbaGZ9RGlC>
>>>
>>>  And this is what I want it to be
>>>
>>> Contact:
>>> <sip:1313717555 at jump.dsiprouter.net;line=sr-h06Cy7RYRFkYacM0a7epa7sVa7sVRcNCW7IbaGZ9RGlC>
>>>
>>> I’m using this 
>>>
>>> subst('/^Contact: <sip:(.*);(.*)>$/Contact:
>>> <sip:1313717555 at jump.dsiprouter.net;\2>\r/ig’);
>>>
>>> And it doesn’t work, but putting into a online regular expression
>>> tester it looks good as shown below.  Any ideas? 
>>>
>>>
>>>
>>> _______________________________________________
>>> Kamailio (SER) - Users Mailing List
>>> sr-users at lists.kamailio.org
>>> https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
>> -- 
>> Daniel-Constantin Mierla -- www.asipto.com
>> www.twitter.com/miconda -- www.linkedin.com/in/miconda
>
-- 
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda

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