private void CheckCryptoKey()
{
var appListUri = new Uri(_server.Uri, new Uri("app-list", UriKind.Relative));
using (var webClient = new WebClientTimeout
{
Credentials = _server.Credentials,
CachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore)
})
{
try
{
AppList.LoadXmlZip(new MemoryStream(webClient.DownloadData(appListUri)), _cryptoKey);
}
#region Error handling
catch (WebException ex)
when (ex.Status == WebExceptionStatus.ProtocolError && (ex.Response as HttpWebResponse)?.StatusCode == HttpStatusCode.Unauthorized)
{
// Wrap exception to add context information
throw new WebException(Resources.SyncCredentialsInvalid, ex, ex.Status, ex.Response);
}
catch (ZipException ex)
{
// Wrap exception to add context information
if (ex.Message == "Invalid password for AES") throw new InvalidDataException(Resources.SyncCryptoKeyInvalid);
else throw new InvalidDataException(Resources.SyncServerDataDamaged, ex);
}
#endregion
}
}
#endregion
