[SR-Users] Terminate dialog from another dialog

[Joel Serrano]

Update 2:

Unfortunately dlg_get() can't be used in event_route so I don't know how I
can use dlg_bye() on a different dialog (not the current one)  :(

This bit of code does the job, but I don't know if it's really messy:


...bcalls is the name of the htable, for each dialog I save the callid,
from_tag and to_tag (needed params for dialog termination)..


event_route[dialog:start] {
  if ($sht(bcalls=>$fU::callid) != $null) {
    jsonrpc_exec('{"jsonrpc": "2.0","method": "dlg.terminate_dlg","params":
["$sht(bcalls=>$fU::callid)", "$sht(bcalls=>$fU::from_tag)",
"$sht(bcalls=>$fU::to_tag)"],"id": 1}');   <<<<< This is what I think is
messy...
    xlog("L_NOTICE", "User check: Previous call terminated:
$jsonrpl(body)\n");
    $sht(bcalls=>$fU::callid) = $dlg(callid);
    $sht(bcalls=>$fU::from_tag) = $dlg(from_tag);
    $sht(bcalls=>$fU::to_tag) = $tt;
    xlog("L_NOTICE", "User check: Updated call-info for $fU in htable\n");
  } else {
    $sht(bcalls=>$fU::callid) = $dlg(callid);
    $sht(bcalls=>$fU::from_tag) = $dlg(from_tag);
    $sht(bcalls=>$fU::to_tag) = $tt;
    xlog("L_NOTICE", "User check: Added call-info for $fU to htable\n");
  }
}


Any comments???

On Tue, Mar 27, 2018 at 8:23 AM, Joel Serrano <joel at gogii.net> wrote:

> Update:
>
> I have been testing and I think the way to go is taking advantage of the
> events generated by the dialog module (start/end/failed)...
>
> I don't know if this is a bug, but shouldn't the $dlg(to_tag) be available
> in the event_route[dialog:start] ??
>
> I can access $dlg(callid), $dlg(from_tag) but not the $dlg(to_tag) and all
> 3 are needed to search and terminate an existing dialog. For now i'm using
> $tt, but I'm wondering if this is correct or not? Let me know if I should
> move this topic to github...
>
> Thanks!
> Joel.
>
>
>
>
>
>
> On Sun, Mar 25, 2018 at 4:57 PM, Joel Serrano <joel at gogii.net> wrote:
>
>> Hi guys,
>>
>> I'm trying to set kamailio to not allow simultaneous calls from the same
>> user, but if a second call comes in, the behavior desired is to process
>> that second call and terminate the previous (already active) one.
>>
>> Say you have call A that creates dialog A.
>>
>> Then you have call B come in, creates dialog B.
>>
>> Can I save some info from dialog (call) A in a htable for example, then
>> check that htable for the needed info from dialog (call) B and terminate
>> dialog (call) A if it exists?
>>
>> I think using dlg_get() and dlg_bye() would do the trick but not 100%
>> sure how they work..
>>
>>
>> The example in the docs seems exactly the case:
>>
>> dlg_get --> "Search and set current dialog based on Call-ID, From-Tag
>> and To-Tag parameters"
>>
>> if(dlg_get("abcdef", "123", "456"))
>> {
>> dlg_bye("all");
>> }
>>
>> After the dlg_get() and dlg_bye() what happens to call B? Does the route
>> continue running or does it end? Will it automatically switch back to the
>> current dialog or do you have to manually switch back running dlg_get()
>> again? (Sorry if I'm not explaining myself correctly, let me know if it
>> sounds confusing)
>>
>> Does anyone have experience with these two functions?
>>
>>
>> Thanks,
>> Joel.
>>
>>
>
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