private string DeliverQRV(string paramstr)
{
string json = "";
// set default values
string callstr = "";
string locstr = "";
string bandstr = "";
BAND band = Properties.Settings.Default.Band;
// get parameters
try
{
if (paramstr.Contains("?"))
{
// OK, we have parameters --> cut them out and make all uppercase
paramstr = paramstr.Substring(paramstr.IndexOf("?") + 1).ToUpper();
var pars = System.Web.HttpUtility.ParseQueryString(paramstr);
callstr = pars.Get("CALL");
locstr = pars.Get("LOC");
bandstr = pars.Get("BAND");
}
}
catch (Exception ex)
{
// return error
return("Error while parsing parameters!");
}
// check parameters
if (!Callsign.Check(callstr))
{
return("Error: " + callstr + " is not a valid callsign!");
}
if (!MaidenheadLocator.Check(locstr))
{
return("Error: " + locstr + " is not a valid Maidenhead locator!");
}
// set band to currently selected if empty
if (string.IsNullOrEmpty(bandstr))
{
band = Properties.Settings.Default.Band;
}
else
{
band = Bands.ParseStringValue(bandstr);
}
if (band == BAND.BNONE)
{
return("Error: " + bandstr + " is not a valid band value!");
}
// search call in station database, return empty string if not found
if (band != BAND.BALL)
{
QRVDesignator qrv = StationData.Database.QRVFind(callstr, locstr, band);
if (qrv == null)
{
return("Error: QRV info not found in database!");
}
json = qrv.ToJSON();
return(json);
}
List <QRVDesignator> qrvs = StationData.Database.QRVFind(callstr, locstr);
if ((qrvs == null) || (qrvs.Count() == 0))
{
return("Error: QRV info not found in database!");
}
JsonSerializerSettings settings = new JsonSerializerSettings();
settings.DateTimeZoneHandling = DateTimeZoneHandling.Utc;
settings.FloatFormatHandling = FloatFormatHandling.String;
settings.Formatting = Newtonsoft.Json.Formatting.Indented;
json = JsonConvert.SerializeObject(qrvs, settings);
return(json);
}
