private void UpdateCheckerCallback(UpdateChecker uc, UpdateCheckerResult result)
{
try
{
if (!result.Success)
{
return;
}
if (CheckCompleted != null)
{
CheckCompleted(this, new UpdateCheckCompletedEventArgs()
{
HasUpdates = result.Updates.Count > 0
});
}
if (result.Updates.Count > 0)
{
var answer = MessageBox.Show("Обнаружены новые версии. Обновить программу?", "Обновление", MessageBoxButton.YesNo, MessageBoxImage.Question);
if (answer == MessageBoxResult.Yes)
{
var UpdWnd = new UpdatesWnd();
UpdWnd.Updates = result.Updates;
UpdWnd.Show();
}
}
}
catch
{
#if DEBUG
throw;
#endif
}
}
void DownloadFileCompleted(IAsyncResult asynchronousResult)
{
RequestState state = (RequestState)asynchronousResult.AsyncState;
UpdateCheckerResult CheckResult = new UpdateCheckerResult();
try
{
HttpWebRequest myHttpWebRequest = (HttpWebRequest)state.request;
state.response = (HttpWebResponse)myHttpWebRequest.EndGetResponse(asynchronousResult);
if (state.response.ContentType == "application/xml")
{
CheckResult.Updates = LoadResult(state.response);
CheckResult.Success = true;
}
else
{
CheckUpdateOnQueueAsync(state.ResultHandler, state);
return;
}
}
catch (Exception exc)
{
try
{
state.LastError = exc.ToString();
CheckUpdateOnQueueAsync(state.ResultHandler, state);
return;
}
catch (Exception innerExc)
{
CheckResult.Exception = innerExc;
CheckResult.Success = false;
}
}
finally
{
if (state.response != null)
{
state.response.Close();
}
}
state.ResultHandler(this, CheckResult);
}
private void CheckUpdateOnQueueAsync(UpdateCheckerResultHandler ResultHandler, RequestState state)
{
var reqState = (RequestState)state;
string url;
try
{
url = reqState.Urls.Dequeue();
}
catch (InvalidOperationException)
{
var result = new UpdateCheckerResult();
result.Success = false;
if (reqState.LastError != null)
{
throw new UpdaterException(reqState.LastError);
}
else
{
throw new UpdaterException("Ни один из адресов автообновления не вернул корректный ответ");
}
}
HttpWebRequest client = (HttpWebRequest)HttpWebRequest.Create(url);
client.Accept = "application/xml";
client.UserAgent = "DBManager Autoupdate " + System.Reflection.Assembly.GetExecutingAssembly().GetName().Version.ToString();
client.AllowAutoRedirect = true;
client.Proxy = WebRequest.DefaultWebProxy;
client.Proxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
state.request = client;
state.ResultHandler = ResultHandler;
client.BeginGetResponse(GUIContextCallback(DownloadFileCompleted), reqState);
}