public IHttpActionResult GetPairingCode(string uuid)
{
PairingOperation existing = PairingOperationForUUID(uuid);
if (existing != null)
{
// return the previously generated pairing key
return(Ok(existing.ID));
}
// generate a new pairing key
PairingOperation pairingOperation = new PairingOperation();
pairingOperation.DeviceUUID = uuid;
pairingOperation.ID = GetRandomPairingCode();
while (PairingOperationExists(pairingOperation.ID))
{
// make sure it is unique
pairingOperation.ID = GetRandomPairingCode();
}
db.PairingOperations.Add(pairingOperation);
db.SaveChanges();
return(Ok(pairingOperation.ID));
}
public IHttpActionResult GetPairingStatus(string id, string uuid)
{
PairingOperation pairingOperation = db.PairingOperations.Find(id);
if (pairingOperation == null)
{
return(NotFound());
}
if (pairingOperation.DeviceUUID == uuid)
{
// only allow the status to be polled if the UUID is known
return(Ok(pairingOperation));
}
else
{
return(BadRequest());
}
}
public IHttpActionResult GetFinishPairing(string id, string uuid)
{
PairingOperation pairingOperation = db.PairingOperations.Find(id);
if (pairingOperation == null)
{
return(NotFound());
}
if (pairingOperation.DeviceUUID == uuid)
{
// only allow the pairing session to be closed by the original device
db.Entry(pairingOperation).State = EntityState.Deleted;
db.SaveChanges();
return(Ok());
}
else
{
return(BadRequest());
}
}