Hi,
Another tricks:
1) you can read the pending destinations directly from AVPs, without
calling the "use_next_gw()" function. See:
http://www.opensips.org/html/docs/modules/1.6.x/drouting.html#id293166
2) as append_branch() does not accept variables as params, use the
"$branch" variable to write into:
http://www.opensips.org/Resources/DocsCoreVar16#toc15
like:
$branch = $var(x) ; #add a new SIP URI as extra branch
$(branch(q)[-1]) = 10 ; # set Q val for the last added brach
Regards,
Bogdan
Anca Vamanu wrote:
Hi thrillerbe,
I think that if you only want to build the list of selected
destinations, you can just call use_next_gw and add the uri in RURI to
a destination string ( because use_next_gw sets the RURI to the
destination-
http://www.opensips.org/html/docs/modules/devel/drouting.html#id251519).
It would be something like this:
if (do_routing("1","2"))
{
if ($avp(s:dr_rules_attrs) == "2")
{
xlog("L_INFO","After 1, ds is $ru\n");
$var(x) = 2;
$var(ds) = $ru;
while (use_next_gw())
{
$var(ds) = $var(ds) + "," + $ru;
xlog("L_INFO","After $var(x), ds is $var(ds)\n");
$var(x) = $var(x) + 1;
}
}
xlog("L_INFO","Destination set is $var(ds)\n");
}
Regards,
--
Anca Vamanu
OpenSIPS Developer
On 03/29/2011 01:00 AM, thrillerbee wrote:
I'm trying to get OpenSIPS to act as a REDIRECT server and have run
into a couple issues. I'm using the drouting module to do lookups.
Essentially, a dialed number could have potentially several routes, I
want to return a 300 with these routes in the Contact header. Please
tell me if this is foolish and/or there are better methods.
I'm running release version 1.6.4-2-notls.
With that, I've configured the following in my script:
if (do_routing("1","2"))
{
if ($avp(s:dr_rules_attrs) == "2")
{
xlog("L_INFO","After 1, ds is $ds\n");
$var(x) = 2;
while (use_next_gw())
{
append_branch();
xlog("L_INFO","After $var(x), ds is $ds\n");
$var(x) = $var(x) + 1;
}
}
xlog("L_INFO","Destination set is $ds\n");
}
My relevant debug output is:
After 1, ds is Contact: sip:15552345678@1.1.1.1
<mailto:sip%3A15552345678@1.1.1.1>
After 2, ds is Contact: *sip:2215552345678@2.2.2.2
<mailto:sip%3A2215552345678@2.2.2.2>, sip:2215552345678@2.2.2.2
<mailto:sip%3A2215552345678@2.2.2.2>*
After 3, ds is Contact: *sip:5552345678@3.3.3.3
<mailto:sip%3A5552345678@3.3.3.3>*, sip:2215552345678@2.2.2.2
<mailto:sip%3A2215552345678@2.2.2.2>, *sip:5552345678@3.3.3.3
<mailto:sip%3A5552345678@3.3.3.3>*
After 4, ds is Contact: *sip:15552345678@5.5.5.5
<mailto:sip%3A15552345678@5.5.5.5>*, sip:2215552345678@2.2.2.2
<mailto:sip%3A2215552345678@2.2.2.2>, sip:5552345678@3.3.3.3
<mailto:sip%3A5552345678@3.3.3.3>, *sip:15552345678@5.5.5.5
<mailto:sip%3A15552345678@5.5.5.5>*
After 5, ds is Contact: *sip:4415552345678@4.4.4.4
<mailto:sip%3A4415552345678@4.4.4.4>*, sip:2215552345678@2.2.2.2
<mailto:sip%3A2215552345678@2.2.2.2>, sip:5552345678@3.3.3.3
<mailto:sip%3A5552345678@3.3.3.3>, sip:15552345678@5.5.5.5
<mailto:sip%3A15552345678@5.5.5.5>, *sip:4415552345678@4.4.4.4
<mailto:sip%3A4415552345678@4.4.4.4>*
It seems that append_branch() deletes the first entry in the
destination set before adding the current RURI to the beginning and
end. Is there an easier or more predictable way to write to the
destination set?
Also, it seems the append_branch() function will not take variables
or avps as parameters. Is there a known way of setting different
q-values as a destination set is generated? The below obviously
doesn't work but should explain what I'm looking for:
var(q) = 90;
while (use_next_branch())
{
append_branch("$ru","$var(q)");
$var(q) = $var(q) - 10;
}
Thanks,
Ryan
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--
Bogdan-Andrei Iancu
OpenSIPS eBootcamp - 2nd of May 2011
OpenSIPS solutions and "know-how"
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