private void CheckForUpdateAsync(object state)
{
try
{
if (!_manualCheck & (_updateCheckedAt.AddMilliseconds(_updateCheckInterval) > DateTime.UtcNow))
{
return;
}
using (WebClientEx wC = new WebClientEx())
{
wC.Proxy = _proxy;
wC.Timeout = 30000;
byte[] response = wC.DownloadData(_updateCheckUri);
using (BinaryReader bR = new BinaryReader(new MemoryStream(response, false)))
{
if (Encoding.ASCII.GetString(bR.ReadBytes(2)) != "MU") //format
{
throw new InvalidDataException("Mesh update info format is invalid.");
}
switch (bR.ReadByte()) //version
{
case 1:
_updateVersion = bR.ReadShortString();
_displayText = bR.ReadShortString();
_downloadLink = bR.ReadShortString();
break;
default:
throw new InvalidDataException("Mesh update info version not supported.");
}
if (IsUpdateAvailable(_currentVersion, _updateVersion))
{
_syncCxt.Send(delegate(object state2)
{
UpdateAvailable?.Invoke(this, EventArgs.Empty);
}, null);
}
else if (_manualCheck)
{
_syncCxt.Send(delegate(object state2)
{
NoUpdateAvailable?.Invoke(this, EventArgs.Empty);
}, null);
}
}
}
}
catch (Exception ex)
{
if (_manualCheck)
{
_syncCxt.Send(delegate(object state2)
{
UpdateCheckFailed?.Invoke(this, ex);
}, null);
}
}
finally
{
_manualCheck = false;
_updateCheckedAt = DateTime.UtcNow;
}
}
protected virtual void OnNoUpdateAvailable()
{
NoUpdateAvailable?.Invoke(this, EventArgs.Empty);
}
protected virtual void OnRaiseNoUpdateAvailable(NoUpdateAvailableEventArgs e)
{
NoUpdateAvailable?.Invoke(this, e);
}