[OpenSIPS-Users] check VIA Header / regexp + variables?

[Bogdan-Andrei Iancu]

Hi Max,

What you can do is:

 1) get the via body:
    $avp(i:1) = $(hdr(via)[0]) ;

 2) make subst over the body to get the IP
    avp_subst("$avp(i:1)/$avp(i:2)" , "/.*UDP 
([0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}).*/\1/");

 3) make the test
    if ($avp(i:2)==$si) {}

Regards,
Bogdan

PS: I haven't tested the subst regexp, so doublecheck it ;)

Max Mühlbronner wrote:
> Hello,
>
>
> i want to perform a check on the VIA Headers, basically to compare if 
> the source ip ($si) is included in one of the VIA Headers. Already 
> tried several things, but it seems like there is no way to check for a 
> variable in a regexpression, maybe someone got a solution or tried 
> something similar before?
>
>
> for example:
>
> if (search ("Via:.*$si.")) {
> ...
> }
>
> or
>
> $var(viacheck) = $si;
> if (search ("Via:.*$var(viacheck).")) {
> ...
> }
>
>
> or different approach:
>
> $var(viacheck) = $si;
> if($(hdr(Via)[*])=~ ".*$var(viacheck).") {
>  ...
> }
>
>
> But nothing seems to work, is there any way to check for a variable / 
> non static values in a regexp? Or does anyone know a way to check if 
> the source ip is contained in VIA Header?
>
>
>
> Best Regards
>
> Max M.
>
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>


-- 
Bogdan-Andrei Iancu
OpenSIPS eBootcamp - 28th February 2011
OpenSIPS solutions and "know-how"