/// <summary>
/// Compare check sum of the downloaded update file with the algorithm and check sum given
/// </summary>
/// <param name="fileName">The downloaded file name</param>
/// <param name="checksum">The check sum value</param>
/// <returns>Returns true if it matches otherwise false</returns>
private bool CompareChecksum(string fileName, string checksum)
{
using (var hashAlgorithm = HashAlgorithm.Create(this._eazyUpdate.UpdaterInformation.HashingAlgorithm))
{
using (var stream = File.OpenRead(fileName))
{
if (hashAlgorithm != null)
{
var hash = hashAlgorithm.ComputeHash(stream);
var fileChecksum = BitConverter.ToString(hash).Replace("-", string.Empty).ToLowerInvariant();
if (fileChecksum == checksum.ToLower())
{
return(true);
}
ActionInvokeEnabler.InvokeIfNecessary(() =>
MessageBox.Show(ResourceEnabler.GetResourceText("FileIntegrityCheckFailedMessage"),
ResourceEnabler.GetResourceText("FileIntegrityCheckFailedCaption"),
MessageBoxButton.OK, MessageBoxImage.Error));
}
else
{
if (this._eazyUpdate.UpdaterOptions.ReportErrors)
{
ActionInvokeEnabler.InvokeIfNecessary(() =>
MessageBox.Show(ResourceEnabler.GetResourceText("UnsupportedHashAlgorithmMessage"),
ResourceEnabler.GetResourceText("UnsupportedHashAlgorithmCaption"),
MessageBoxButton.OK, MessageBoxImage.Error));
}
}
return(false);
}
}
}
/// <summary>
/// Run application update with current update information
/// </summary>
/// <returns>Empty Task object that can be awaited</returns>
private Task RunApplicationUpdate()
{
if (this.UpdaterInformation.CurrentVersion == null ||
string.IsNullOrEmpty(this.UpdaterInformation.DownloadURL))
{
this.IsUpdaterRunning = false;
throw new InvalidDataException();
}
if (!this.UpdaterInformation.IsMandatoryUpdate)
{
var registryValues = this.EazyUpdateReadWriter.GetRegistryValues(this.RegistryLocation,
new Collection <string> {
RegistryKeys.Skip, RegistryKeys.Version, RegistryKeys.RemindLater
});
if (registryValues?.Any() == true)
{
if (registryValues[RegistryKeys.Skip] != null && registryValues[RegistryKeys.Version] != null)
{
string skipValue = registryValues[RegistryKeys.Skip].ToString();
var skipVersion = new Version(registryValues[RegistryKeys.Version].ToString());
if (skipValue.Equals("1") && this.UpdaterInformation.CurrentVersion <= skipVersion)
{
return(null);
}
if (this.UpdaterInformation.CurrentVersion > skipVersion)
{
var newRegistryValue = new Dictionary <string, object>
{
{ RegistryKeys.Version, this.UpdaterInformation.CurrentVersion.ToString() },
{ RegistryKeys.Skip, 0 }
};
this.EazyUpdateReadWriter.UpdateRegistry(this.RegistryLocation, newRegistryValue);
}
}
var remindLaterTime = registryValues?[RegistryKeys.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)
{
this.SetTimer(remindLater);
return(null);
}
}
}
}
if (this.CustomNotification != null)
{
this.CustomNotification?.Invoke(this, new NotificationEventArgs(this.UpdaterInformation));
}
else
{
if (this.UpdaterInformation != null)
{
if (this.UpdaterInformation.IsUpdateAvailable)
{
if (!this.IsWinFormsApplication)
{
System.Windows.Forms.Application.EnableVisualStyles();
}
if (this.UpdaterInformation.IsMandatoryUpdate &&
this.UpdaterInformation.UpdateMode == EazyUpdateMode.ForcedDownload)
{
this.DownloadUpdate();
this.Exit();
}
else
{
if (Thread.CurrentThread.GetApartmentState().Equals(ApartmentState.STA))
{
this.ShowUpdateForm();
}
else
{
Thread thread = new Thread(this.ShowUpdateForm);
thread.CurrentCulture = thread.CurrentUICulture = CultureInfo.CurrentCulture;
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
thread.Join();
}
}
return(null);
}
else
{
if (this.UpdaterOptions.ReportErrors)
{
ActionInvokeEnabler.InvokeIfNecessary(() =>
System.Windows.MessageBox.Show(ResourceEnabler.GetResourceText("UpdateUnavailableMessage"),
ResourceEnabler.GetResourceText("UpdateUnavailableCaption"),
MessageBoxButton.OK, MessageBoxImage.Information));
}
}
}
else
{
if (this.UpdaterOptions.ReportErrors)
{
ActionInvokeEnabler.InvokeIfNecessary(() =>
System.Windows.MessageBox.Show(ResourceEnabler.GetResourceText("UpdateCheckFailedMessage"),
ResourceEnabler.GetResourceText("UpdateCheckFailedCaption"),
MessageBoxButton.OK, MessageBoxImage.Information));
}
}
}
this.IsUpdaterRunning = false;
return(null);
}