internal static MyWebClient GetWebClient(Uri uri, IAuthentication basicAuthentication)
{
MyWebClient webClient = new MyWebClient
{
CachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore)
};
if (Proxy != null)
{
webClient.Proxy = Proxy;
}
if (uri.Scheme.Equals(Uri.UriSchemeFtp))
{
webClient.Credentials = FtpCredentials;
}
else
{
basicAuthentication?.Apply(ref webClient);
webClient.Headers[HttpRequestHeader.UserAgent] = HttpUserAgent;
}
return(webClient);
}
private static void BackgroundWorkerDoWork(object sender, DoWorkEventArgs e)
{
e.Cancel = true;
Assembly mainAssembly = e.Argument as Assembly;
var companyAttribute =
(AssemblyCompanyAttribute)GetAttribute(mainAssembly, typeof(AssemblyCompanyAttribute));
if (string.IsNullOrEmpty(AppTitle))
{
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)
? $@"Software\{appCompany}\{AppTitle}\AutoUpdater"
: $@"Software\{AppTitle}\AutoUpdater";
InstalledVersion = mainAssembly.GetName().Version;
WebRequest webRequest = WebRequest.Create(AppCastURL);
webRequest.CachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore);
if (Proxy != null)
{
webRequest.Proxy = Proxy;
}
var uri = new Uri(AppCastURL);
WebResponse webResponse;
try
{
if (uri.Scheme.Equals(Uri.UriSchemeFtp))
{
var ftpWebRequest = (FtpWebRequest)webRequest;
ftpWebRequest.Credentials = FtpCredentials;
ftpWebRequest.UseBinary = true;
ftpWebRequest.UsePassive = true;
ftpWebRequest.KeepAlive = true;
ftpWebRequest.Method = WebRequestMethods.Ftp.DownloadFile;
webResponse = ftpWebRequest.GetResponse();
}
else if (uri.Scheme.Equals(Uri.UriSchemeHttp) || uri.Scheme.Equals(Uri.UriSchemeHttps))
{
HttpWebRequest httpWebRequest = (HttpWebRequest)webRequest;
httpWebRequest.UserAgent = GetUserAgent();
if (BasicAuthXML != null)
{
// Apply Authentication
BasicAuthXML.Apply(httpWebRequest.RequestUri, httpWebRequest.Headers);
}
webResponse = httpWebRequest.GetResponse();
}
else
{
webResponse = webRequest.GetResponse();
}
}
catch (Exception exception)
{
Debug.WriteLine(exception);
e.Cancel = false;
return;
}
UpdateInfoEventArgs args;
using (Stream appCastStream = webResponse.GetResponseStream())
{
if (appCastStream != null)
{
if (ParseUpdateInfoEvent != null)
{
using (StreamReader streamReader = new StreamReader(appCastStream))
{
string data = streamReader.ReadToEnd();
ParseUpdateInfoEventArgs parseArgs = new ParseUpdateInfoEventArgs(data);
ParseUpdateInfoEvent(parseArgs);
args = parseArgs.UpdateInfo;
}
}
else
{
XmlDocument receivedAppCastDocument = new XmlDocument();
try
{
receivedAppCastDocument.Load(appCastStream);
XmlNodeList appCastItems = receivedAppCastDocument.SelectNodes("item");
args = new UpdateInfoEventArgs();
if (appCastItems != null)
{
foreach (XmlNode item in appCastItems)
{
XmlNode appCastVersion = item.SelectSingleNode("version");
try
{
CurrentVersion = new Version(appCastVersion?.InnerText);
}
catch (Exception)
{
CurrentVersion = null;
}
args.CurrentVersion = CurrentVersion;
XmlNode appCastChangeLog = item.SelectSingleNode("changelog");
args.ChangelogURL = appCastChangeLog?.InnerText;
XmlNode appCastUrl = item.SelectSingleNode("url");
args.DownloadURL = appCastUrl?.InnerText;
if (Mandatory.Equals(false))
{
XmlNode mandatory = item.SelectSingleNode("mandatory");
Boolean.TryParse(mandatory?.InnerText, out Mandatory);
string mode = mandatory?.Attributes["mode"]?.InnerText;
if (!string.IsNullOrEmpty(mode))
{
UpdateMode = (Mode)Enum.Parse(typeof(Mode), mode);
if (ReportErrors && !Enum.IsDefined(typeof(Mode), UpdateMode))
{
throw new InvalidDataException(
$"{UpdateMode} is not an underlying value of the Mode enumeration.");
}
}
}
args.Mandatory = Mandatory;
args.UpdateMode = UpdateMode;
XmlNode appArgs = item.SelectSingleNode("args");
args.InstallerArgs = appArgs?.InnerText;
XmlNode checksum = item.SelectSingleNode("checksum");
args.HashingAlgorithm = checksum?.Attributes["algorithm"]?.InnerText;
args.Checksum = checksum?.InnerText;
}
}
}
catch (Exception)
{
e.Cancel = false;
webResponse.Close();
return;
}
}
}
else
{
e.Cancel = false;
webResponse.Close();
return;
}
}
if (args.CurrentVersion == null || string.IsNullOrEmpty(args.DownloadURL))
{
webResponse.Close();
if (ReportErrors)
{
throw new InvalidDataException();
}
return;
}
CurrentVersion = args.CurrentVersion;
ChangelogURL = args.ChangelogURL = GetURL(webResponse.ResponseUri, args.ChangelogURL);
DownloadURL = args.DownloadURL = GetURL(webResponse.ResponseUri, args.DownloadURL);
InstallerArgs = args.InstallerArgs ?? String.Empty;
HashingAlgorithm = args.HashingAlgorithm ?? "MD5";
Checksum = args.Checksum ?? String.Empty;
webResponse.Close();
if (Mandatory)
{
ShowRemindLaterButton = false;
ShowSkipButton = false;
}
else
{
using (RegistryKey updateKey = Registry.CurrentUser.OpenSubKey(RegistryLocation))
{
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)
{
using (RegistryKey updateKeyWrite = Registry.CurrentUser.CreateSubKey(RegistryLocation))
{
if (updateKeyWrite != null)
{
updateKeyWrite.SetValue("version", CurrentVersion.ToString());
updateKeyWrite.SetValue("skip", 0);
}
}
}
}
object remindLaterTime = updateKey.GetValue("remindlater");
if (remindLaterTime != null)
{
DateTime remindLater = Convert.ToDateTime(remindLaterTime.ToString(),
CultureInfo.CreateSpecificCulture("en-US").DateTimeFormat);
int compareResult = DateTime.Compare(DateTime.Now, remindLater);
if (compareResult < 0)
{
e.Cancel = false;
e.Result = remindLater;
return;
}
}
}
}
}
args.IsUpdateAvailable = CurrentVersion > InstalledVersion;
args.InstalledVersion = InstalledVersion;
e.Cancel = false;
e.Result = args;
}
