public Task <UpdateResult> UpdateAsync()
{
return(Task.Run <UpdateResult>(() =>
{
try
{
WaitForInitializationToComplete();
var ext = Path.GetExtension(_installerLocation);
var tempFile = Path.ChangeExtension(Path.GetTempFileName(), ext);
if (!CopyFile(_installerLocation, tempFile))
{
return UpdateResult.DownloadFailed;
}
using (var trustVerifier = new TrustVerifier(tempFile))
{
if (!trustVerifier.IsVerified)
{
return UpdateResult.VerificationFailed;
}
UpdateMethods.BeginMSIInstall(tempFile);
}
return UpdateResult.Success;
}
catch (Exception e)
{
e.ReportException();
return UpdateResult.Unknown;
}
}));
}
private AutoUpdateOption Initialize()
{
// Do NOT use anything that calls WaitForInitializationToComplete in this
// method, or you may create a deadlock condition
try
{
OverridableConfig config = new OverridableConfig(ConfigFile);
_releaseLocation = UpdateMethods.GetReleaseLocation(config);
_metaMSISettings = UpdateMethods.ExtractMSIInfo(_releaseLocation);
if (_metaMSISettings == null)
{
// silently ignore
System.Diagnostics.Trace.WriteLine($"Unable to get update info from meta file at {_releaseLocation}");
return(AutoUpdateOption.Unknown);
}
_installerLocation = _metaMSISettings.GetMSIPathSafely(_releaseLocation);
#pragma warning disable CA1806 // Do not ignore method results
Version.TryParse(_metaMSISettings.Version, out _latestVersion);
Version.TryParse(_metaMSISettings.MinimumVersion, out _minimumVersion);
Version.TryParse(UpdateMethods.GetInstalledProductVersion(), out _installedVersion);
#pragma warning restore CA1806 // Do not ignore method results
if (_installedVersion != null && _latestVersion != null && _minimumVersion != null)
{
if (_latestVersion < _minimumVersion)
{
return(AutoUpdateOption.Unknown);
}
if (_installedVersion < _minimumVersion)
{
return(AutoUpdateOption.RequiredUpgrade);
}
else if (_installedVersion < _latestVersion)
{
return(AutoUpdateOption.OptionalUpgrade);
}
return(AutoUpdateOption.Current);
}
}
catch (Exception e)
{
e.ReportException();
}
return(AutoUpdateOption.Unknown); // Our fallback value if we can't prove a better option
}
