private static void ShowUI()
{
var updateForm = new UpdateForm();
updateForm.ShowDialog();
}
private static void BackgroundWorkerDoWork(object sender, DoWorkEventArgs e)
{
Assembly mainAssembly = Assembly.GetEntryAssembly();
var companyAttribute =
(AssemblyCompanyAttribute)GetAttribute(mainAssembly, typeof(AssemblyCompanyAttribute));
var titleAttribute = (AssemblyTitleAttribute)GetAttribute(mainAssembly, typeof(AssemblyTitleAttribute));
AppTitle = titleAttribute != null ? titleAttribute.Title : mainAssembly.GetName().Name;
string appCompany = companyAttribute != null ? companyAttribute.Company : "";
RegistryLocation = !string.IsNullOrEmpty(appCompany)
? string.Format(@"Software\{0}\{1}\AutoUpdater", appCompany, AppTitle)
: string.Format(@"Software\{0}\AutoUpdater", AppTitle);
RegistryKey updateKey = Registry.CurrentUser.OpenSubKey(RegistryLocation);
if (updateKey != null)
{
object remindLaterTime = updateKey.GetValue("remindlater");
if (remindLaterTime != null)
{
DateTime remindLater = Convert.ToDateTime(remindLaterTime.ToString(),
CultureInfo.CreateSpecificCulture("en-US"));
int compareResult = DateTime.Compare(DateTime.Now, remindLater);
if (compareResult < 0)
{
var updateForm = new UpdateForm(true);
updateForm.SetTimer(remindLater);
return;
}
}
}
InstalledVersion = mainAssembly.GetName().Version;
WebRequest webRequest = WebRequest.Create(AppCastURL);
webRequest.CachePolicy = new HttpRequestCachePolicy(HttpRequestCacheLevel.NoCacheNoStore);
WebResponse webResponse;
try
{
webResponse = webRequest.GetResponse();
}
catch (Exception)
{
if (CheckForUpdateEvent != null)
{
CheckForUpdateEvent(null);
}
return;
}
Stream appCastStream = webResponse.GetResponseStream();
var receivedAppCastDocument = new XmlDocument();
if (appCastStream != null)
{
receivedAppCastDocument.Load(appCastStream);
}
else
{
if (CheckForUpdateEvent != null)
{
CheckForUpdateEvent(null);
}
return;
}
XmlNodeList appCastItems = receivedAppCastDocument.SelectNodes("item");
if (appCastItems != null)
{
foreach (XmlNode item in appCastItems)
{
XmlNode appCastVersion = item.SelectSingleNode("version");
if (appCastVersion != null)
{
String appVersion = appCastVersion.InnerText;
CurrentVersion = new Version(appVersion);
}
else
{
continue;
}
XmlNode appCastTitle = item.SelectSingleNode("title");
DialogTitle = appCastTitle != null ? appCastTitle.InnerText : "";
XmlNode appCastChangeLog = item.SelectSingleNode("changelog");
ChangeLogURL = GetURL(webResponse.ResponseUri, appCastChangeLog);
XmlNode appCastUrl = item.SelectSingleNode("url");
DownloadURL = GetURL(webResponse.ResponseUri, appCastUrl);
if (IntPtr.Size.Equals(8))
{
XmlNode appCastUrl64 = item.SelectSingleNode("url64");
var downloadURL64 = GetURL(webResponse.ResponseUri, appCastUrl64);
if (!string.IsNullOrEmpty(downloadURL64))
{
DownloadURL = downloadURL64;
}
}
}
}
if (updateKey != null)
{
object skip = updateKey.GetValue("skip");
object applicationVersion = updateKey.GetValue("version");
if (skip != null && applicationVersion != null)
{
string skipValue = skip.ToString();
var skipVersion = new Version(applicationVersion.ToString());
if (skipValue.Equals("1") && CurrentVersion <= skipVersion)
{
return;
}
if (CurrentVersion > skipVersion)
{
RegistryKey updateKeyWrite = Registry.CurrentUser.CreateSubKey(RegistryLocation);
if (updateKeyWrite != null)
{
updateKeyWrite.SetValue("version", CurrentVersion.ToString());
updateKeyWrite.SetValue("skip", 0);
}
}
}
updateKey.Close();
}
if (CurrentVersion == null)
{
return;
}
var args = new UpdateInfoEventArgs
{
DownloadURL = DownloadURL,
ChangelogURL = ChangeLogURL,
CurrentVersion = CurrentVersion,
InstalledVersion = InstalledVersion,
IsUpdateAvailable = false,
};
if (CurrentVersion > InstalledVersion)
{
args.IsUpdateAvailable = true;
if (CheckForUpdateEvent == null)
{
var thread = new Thread(ShowUI);
thread.CurrentCulture = thread.CurrentUICulture = CurrentCulture ?? Application.CurrentCulture;
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
}
}
if (CheckForUpdateEvent != null)
{
CheckForUpdateEvent(args);
}
}