public async Task <IHttpActionResult> PostStop(string uuid)
{
//-- Stop recording.
var path = String.Format("webapi/uuid_record?{0} stop all", uuid);
var helper = new FreeSwitchHelper();
await helper.SendRpc(path, "+OK Success");
//-- Inform the sides.
path = String.Format("txtapi/uuid_broadcast?{0}%20ivr/ivr-recording_stopped.wav", uuid);
await helper.SendRpc(path, "+OK Message sent");
await Task.Delay(2000); // 1 sec + 1 sec extra
//-- Hang up the call from the Freeswitch side.
path = String.Format("webapi/uuid_kill?{0}", uuid);
await helper.SendRpc(path, "+OK");
return(StatusCode(HttpStatusCode.NoContent));
}
public async Task <IHttpActionResult> PutStart([FromBody] JObject values)
{
var learnerSkype = (string)values["learnerSkype"];
// Make sure the teacher's Skype Name is known. We use it to filter the ongoing calls.
var sqlTeacher = @"
select SkypeName from dbo.appGetUser(@UserId);
";
var skypeName = (await DapperHelper.QueryResilientlyAsync <string>(sqlTeacher, new { UserId = this.GetUserId(), }))
.SingleOrDefault();
if (String.IsNullOrEmpty(skypeName))
{
throw new Exception("Please enter your Skype name on the Profile page.");
}
// Make sure the learner's Skype Name is known
var sqlLearner = @"
select cast(coalesce(dbo.appGetUserIdBySkypeName(@SkypeName), 0) as bit);
";
var learnerFound = (await DapperHelper.QueryResilientlyAsync <bool>(sqlLearner, new { SkypeName = learnerSkype, }))
.SingleOrDefault();
if (!learnerFound)
{
throw new Exception("The Skype name was not found. Ask the learner to enter their Skype name on the Profile page.");
}
var helper = new FreeSwitchHelper();
//-- Find the Skype call. Get the Uuid of the Skype call assigned by Freeswitch.
var path = "txtapi/show?calls";
var response = await helper.SendRpc(path);
string uuid = null;
//DateTime? created = null;
var lines = response.Split(new[] { "\n" }, StringSplitOptions.RemoveEmptyEntries);
if (lines.Count() > 1)
{
var callValues = lines.ElementAt(1).Split(new[] { ',' });
uuid = callValues[0];
//var createdValue = DateTime.ParseExact(values[2], "yyyy-MM-dd HH:mm:ss", null);
// Freeswitch reports the server's local time and it does not report the timezone. We expect the VM's time is UTC (This is the case on Azure.)
//DateTime.SpecifyKind(createdValue, DateTimeKind.Utc);
//created = createdValue;
}
Guid guid; // uuid is a string which represents a Guid.
if (!Guid.TryParse(uuid, out guid))
{
throw new HttpException("Skype call not found.");
}
//-- Play announce
//path = String.Format("txtapi/uuid_broadcast?{0}%20misc/call_monitoring_blurb.wav", uuid);
//await helper.SendRpc(path, "+OK Message sent");
path = String.Format("txtapi/uuid_broadcast?{0}%20ivr/ivr-recording_started.wav", uuid);
await helper.SendRpc(path, "+OK Message sent");
// Freeswitch returns 200 OK immidiately, even if the sound will then play longer. Without a delay the announcement will be heard on the recording.
await Task.Delay(2000); // 3 sec + 1 sec + 1 sec extra
//-- Start recording
var sourceDir = ConfigurationManager.AppSettings["Freeswitch.MyRecordingsDir"];
// Freeswitch expects a path with forward slash separators. Windows tolerates them as well. We escape the '\' as '\\'.
sourceDir = sourceDir.Replace('\\', '/');
var limit = 900; // 15 minutes * 60 = 900 seconds. Limit the maximum recording time.
path = String.Format("webapi/uuid_record?{0} start '{1}/{0}.wav' {2}", uuid, sourceDir, limit);
await helper.SendRpc(path, "+OK Success");
//-- Inject the tone mark at the beginning of the recording. We might use it to correlate the remark spots relativaly to the start.
// tone_stream://L=1;v=0;%(200,0,1000)
path = String.Format("txtapi/uuid_broadcast?{0} tone_stream%3A%2F%2FL=1;v=0;%25(200,0,1000)", uuid);
await helper.SendRpc(path, "+OK Message sent");
return(Created(uuid, uuid));
}
