private Request PrepareCallRequest( CallRequest request, out Call call)
{
call = new Call(){AccountSid=request.AccountSid, CallTo=request.To, AnswerUrl = request.AnswerUrl, Direction="outbound-api", CallerId=request.From, Timeout=request.TimeLimit};
Queue<DialString> dialStrings = new Queue<DialString>();
System.Text.StringBuilder args_list = new System.Text.StringBuilder();
string sched_hangup_id = string.Empty;
// don't allow "|" and "," in 'to' (destination) to avoid call injection
request.To = request.To.Split(',', '|')[0];
//set hangup_on_ring
int hangup = 0;
if (!int.TryParse(request.HangupOnRing, out hangup))
hangup = -1;
if (hangup == 0)
args_list.Append("execute_on_ring='hangup ORIGINATOR_CANCEL',");
else if (hangup > 0)
args_list.Append(string.Format("execute_on_ring='sched_hangup +{0} ORIGINATOR_CANCEL',", hangup));
// set send_digits
if (!string.IsNullOrEmpty(request.SendDigits))
args_list.Append(string.Format("execute_on_answer='send_dtmf {0}',", request.SendDigits));
//set time_limit
int time = 0;
if (!int.TryParse(request.TimeLimit, out time))
time = -1;
if (time > 0)
{
//create sched_hangup_id
sched_hangup_id = System.Guid.NewGuid().ToString();
args_list.Append(string.Format("api_on_answer='sched_api {0} +{1} hupall ALLOTTED_TIMEOUT agbara_callSid {2}',", sched_hangup_id, request.TimeLimit, call.Sid));
args_list.Append(string.Format("agbara_sched_hangup_id={0}", sched_hangup_id));
}
if (!string.IsNullOrEmpty(request.StatusCallbackUrl))
{
args_list.Append(string.Format("agbara_statuscallback_url={0},", request.StatusCallbackUrl));
args_list.Append(string.Format("agbara_statuscallbackmethod={0},", request.StatusCallbackMethod));
}
if (!string.IsNullOrEmpty(request.FallbackUrl))
{
args_list.Append(string.Format("agbara_fallbackrul={0},", request.FallbackUrl));
args_list.Append(string.Format("agbara_fallbackmethod={0},", request.FallbackMethod));
}
if (!string.IsNullOrEmpty(request.ApplicationSid))
{
args_list.Append(string.Format("agbara_applicationsid={0},", request.ApplicationSid));
}
args_list.Append(string.Format("agbara_callsid={0},", call.Sid));
args_list.Append(string.Format("agbara_accountsid={0},", call.AccountSid));
args_list.Append(string.Format("agbara_answer_url={0},", request.AnswerUrl));
args_list.Append(string.Format("origination_caller_id_number={0},", request.From));
//session_heartbeat
args_list.Append(string.Format("enable_heartbeat_events={0},", 60));
//Set Direction
args_list.Append(string.Format("agbara_call_direction={0}", CallDirection.outboundapi));
foreach (Gateway gate in _fsService.GetGatewaysForNumber(call.CallTo,FS.Sid))
{
for (int i = 1; i < int.Parse(gate.GatewayRetry); i++)
{
DialString dialString = new DialString(call.Sid, request.To, gate.GatewayString, gate.GatewayCodec, gate.GatewayTimeout.ToString(), args_list.ToString());
dialStrings.Enqueue(dialString);
}
}
Request call_req = new Request(call.Sid, dialStrings, request.AnswerUrl, request.StatusCallbackUrl, request.StatusCallbackMethod);
return call_req;
}
public bool Originate(string CallSid)
{
Request CallReq;
bool ret = false;
string outbound_str = string.Empty;
DialString gw = new DialString(null, null, null, null, null, null);
try
{
CallReq = CallRequest[CallSid];
}
catch (Exception ex)
{
return false;
}
try
{
gw = CallReq.gateways.Dequeue();
}
catch (Exception ex)
{
CallRequest.Remove(CallSid);
return false;
}
StringBuilder _options = new StringBuilder();
//Set agbara app flag
_options.Append("agbara_app=true,");
if (!string.IsNullOrEmpty(gw.timeout))
{
_options.Append(string.Format("originate_timeout={0},", gw.timeout));
}
_options.Append("ignore_early_media=true,");
if (!string.IsNullOrEmpty(gw.codecs))
{
_options.Append(string.Format("absolute_codec_string={0}", gw.codecs));
}
if (!string.IsNullOrEmpty(FSOutboundAddress))
{
outbound_str = string.Format("'socket:{0} async full' inline", FSOutboundAddress);
}
else
{
outbound_str = "&park()";
}
string dial_str = string.Format("originate {0}{1},{2}{3}{4}/{5} {6}", "{", gw.extra_dial_string, _options, "}", gw.gw, gw.to, outbound_str);
BgApiResponse ApiResponse = (BgApiResponse)Task<Event>.Factory.StartNew(() => BgAPICommand(dial_str)).Result;
if (ApiResponse.IsSuccess())
{
string job_uuid = ApiResponse.GetJobUUID();
if (!string.IsNullOrEmpty(job_uuid))
{
BackgroundJobs[job_uuid] = CallSid;
ret = true;
}
else
{
ret = false;
}
}
return ret;
}
