public async Task <bool> VerifyLocation()
{
Loc loc = await GetLocationFromDevice();
// If MEX is reachable on your SIM card:
string aCarrierName = GetCarrierName();
string eCarrierName;
if (me.useOnlyWifi) // There's no host (PC, UnityEditor, etc.)...
{
eCarrierName = carrierName;
}
else
{
eCarrierName = aCarrierName;
}
VerifyLocationRequest req = me.CreateVerifyLocationRequest(eCarrierName, loc, cellID, tags);
VerifyLocationReply reply = await me.VerifyLocation(req);
// The return is not binary, but one can decide the particular app's policy
// on pass or failing the location check. Not being verified or the country
// not matching at all is on such policy decision:
// GPS and Tower Status:
switch (reply.gps_location_status)
{
case VerifyLocationReply.GPSLocationStatus.LOC_ROAMING_COUNTRY_MISMATCH:
case VerifyLocationReply.GPSLocationStatus.LOC_ERROR_UNAUTHORIZED:
case VerifyLocationReply.GPSLocationStatus.LOC_ERROR_OTHER:
case VerifyLocationReply.GPSLocationStatus.LOC_UNKNOWN:
return(false);
}
switch (reply.tower_status)
{
case VerifyLocationReply.TowerStatus.NOT_CONNECTED_TO_SPECIFIED_TOWER:
case VerifyLocationReply.TowerStatus.TOWER_UNKNOWN:
return(false);
}
// Distance? A negative value means no verification was done.
if (reply.gps_location_accuracy_km < 0f)
{
return(false);
}
// A per app policy decision might be 0.5 km, or 25km, or 100km:
if (reply.gps_location_accuracy_km < 100f)
{
return(true);
}
// Too far for this app.
return(false);
}
async Task <bool> DoFindCloudlet()
{
bool ok = false;
MatchingEngine dme = mexSample.dme;
VerifyLocationReply reply = null;
try
{
var deviceSourcedLocation = await LocationService.RetrieveLocation();
if (deviceSourcedLocation == null)
{
Debug.Log("VerifyLocation must have a device sourced location to send to DME.");
return(false);
}
Debug.Log("Device sourced location: Lat: " + deviceSourcedLocation.latitude + " Long: " + deviceSourcedLocation.longitude);
var verifyLocationRequest = dme.CreateVerifyLocationRequest(
mexSample.carrierName, // TODO: carrierName is the current carrier string, and must be provided by the app.
deviceSourcedLocation);
reply = await dme.VerifyLocation(mexSample.host, mexSample.port, verifyLocationRequest);
statusContainer.Post("VerifyLocation Reply mobile tower status: " + reply.tower_status.ToString());
if (reply.tower_status.Equals(FindCloudletReply.FindStatus.FIND_FOUND.ToString()))
{
ok = true;
}
}
catch (System.Net.WebException we)
{
Console.WriteLine(we.StackTrace);
statusContainer.Post(we.Source + ", WebException: " + we.Message);
statusContainer.Post(we.StackTrace);
}
finally
{
if (reply != null)
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(VerifyLocationReply));
MemoryStream ms = new MemoryStream();
serializer.WriteObject(ms, reply);
string jsonStr = Util.StreamToString(ms);
statusContainer.Post("VeryfyLocation Reply: " + jsonStr);
}
}
return(ok);
}