[SR-Users] Lua script calling rewriteuri

[Sharif Tanvir Rahman]

Hi Daniel,

I need to access custom database tables (i.e. not default with kamailio)
 from a lua script (extending kamailio.cfg).

Processing any incoming SIP request starts with a lua function and that in
turn call other functions - and each one needs database access for taking
routing decision. This seems to be a huge performance issue
(connecting/querying db in several functions for a sip invite).

Could you please suggest

   - Any global scope (loads only once during start-up, but valid for each
   routing) in kamailio, where the required tables could be cached.
   - Or any other way to address this.


Thanks in advance.




On Tue, Jun 21, 2011 at 2:21 PM, Daniel-Constantin Mierla <miconda at gmail.com
> wrote:

>  Hello,
>
> to rewrite the r-uri you can use the function for setting PV value:
>
> sr.pv.sets("$ru", "_here_is_new_uri_");
>
> To add contact headers to reply, you should use:
>
> sr.hdr.append_to_reply("Contact: <_here_is_your_uri_>\r\n");
>
> Cheers,
> Daniel
>
>
> On 6/20/11 3:23 PM, Sharif Tanvir Rahman wrote:
>
> Hello,
>
>  We plan to use Kamailio as redirect server. Corresponding contact list
> is to be fetched by a Lua script from DB.
>
>  The problem is about calling the required 'rewriteuri' function:
>
>    1. From lua script. both 'sr.rewriteuri()' and 'sr.modf("rewriteuri",
>    ...)" fails to write the 'contact' field.
>    2. I tried an alternative way; pushing the value from lua (e.g.
>    sr.pv.sets("contact", "sip:...")) and got the value in the
>    Kamailio.cfg ($var(contact)). But can't call the rewriteuri function with
>    this variable's value as argument. This seems to be a general problem of
>    calling a function from .cfg with a variable's value as parameter.
>
> Any help much appreciated.
>
>  --
> Sharif
>
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing listsr-users at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>
>
> --
> Daniel-Constantin Mierla -- http://www.asipto.comhttp://linkedin.com/in/miconda -- http://twitter.com/miconda
>
>


-- 
Sharif Tanvir
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