public async Task InstallPackage(IProgress<double> progress, PackageVersionInfo package, CancellationToken cancellationToken)
{
// Target based on if it is an archive or single assembly
// zip archives are assumed to contain directory structures relative to our ProgramDataPath
var isArchive = string.Equals(Path.GetExtension(package.targetFilename), ".zip", StringComparison.OrdinalIgnoreCase);
var target = Path.Combine(isArchive ? _appPaths.TempUpdatePath : _appPaths.PluginsPath, package.targetFilename);
// Download to temporary file so that, if interrupted, it won't destroy the existing installation
var tempFile = await _httpClient.GetTempFile(new HttpRequestOptions
{
Url = package.sourceUrl,
CancellationToken = cancellationToken,
Progress = progress
}).ConfigureAwait(false);
cancellationToken.ThrowIfCancellationRequested();
// Validate with a checksum
if (package.checksum != Guid.Empty) // support for legacy uploads for now
{
using (var crypto = new MD5CryptoServiceProvider())
using (var stream = new BufferedStream(File.OpenRead(tempFile), 100000))
{
var check = Guid.Parse(BitConverter.ToString(crypto.ComputeHash(stream)).Replace("-", String.Empty));
if (check != package.checksum)
{
throw new ApplicationException(string.Format("Download validation failed for {0}. Probably corrupted during transfer.", package.name));
}
}
}
cancellationToken.ThrowIfCancellationRequested();
// Success - move it to the real target
try
{
File.Copy(tempFile, target, true);
//If it is an archive - write out a version file so we know what it is
if (isArchive)
{
File.WriteAllText(target+".ver", package.versionStr);
}
}
catch (IOException e)
{
_logger.ErrorException("Error attempting to move file from {0} to {1}", e, tempFile, target);
throw;
}
try
{
File.Delete(tempFile);
}
catch (IOException e)
{
// Don't fail because of this
_logger.ErrorException("Error deleting temp file {0]", e, tempFile);
}
}
/// <summary>
/// Called when [plugin installed].
/// </summary>
/// <param name="package">The package.</param>
private void OnPluginInstalled(PackageVersionInfo package)
{
_logger.Info("New plugin installed: {0} {1} {2}", package.name, package.version, package.classification);
EventHelper.QueueEventIfNotNull(PluginInstalled, this, new GenericEventArgs<PackageVersionInfo> { Argument = package }, _logger);
ApplicationHost.NotifyPendingRestart();
}
/// <summary>
/// Called when [plugin updated].
/// </summary>
/// <param name="plugin">The plugin.</param>
/// <param name="newVersion">The new version.</param>
private void OnPluginUpdated(IPlugin plugin, PackageVersionInfo newVersion)
{
_logger.Info("Plugin updated: {0} {1} {2}", newVersion.name, newVersion.version, newVersion.classification);
EventHelper.QueueEventIfNotNull(PluginUpdated, this, new GenericEventArgs<Tuple<IPlugin, PackageVersionInfo>> { Argument = new Tuple<IPlugin, PackageVersionInfo>(plugin, newVersion) }, _logger);
ApplicationHost.NotifyPendingRestart();
}
public async void Install(PackageVersionInfo version)
{
_installationManager.InstallPackage(version, new Progress<double>(), CancellationToken.None);
await _nav.NavigateToSettingsPage();
_nav.RemovePagesFromHistory(3);
}
/// <summary>
/// Installs the package internal.
/// </summary>
/// <param name="package">The package.</param>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task InstallPackageInternal(PackageVersionInfo package, IProgress<double> progress, CancellationToken cancellationToken)
{
// Do the install
await _packageManager.InstallPackage(progress, package, cancellationToken).ConfigureAwait(false);
// Do plugin-specific processing
if (!(Path.GetExtension(package.targetFilename) ?? "").Equals(".zip", StringComparison.OrdinalIgnoreCase))
{
// Set last update time if we were installed before
var plugin = ApplicationHost.Plugins.FirstOrDefault(p => p.Name.Equals(package.name, StringComparison.OrdinalIgnoreCase));
if (plugin != null)
{
OnPluginUpdated(plugin, package);
}
else
{
OnPluginInstalled(package);
}
}
}
/// <summary>
/// Installs the package.
/// </summary>
/// <param name="package">The package.</param>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentNullException">package</exception>
public async Task InstallPackage(PackageVersionInfo package, IProgress<double> progress, CancellationToken cancellationToken)
{
if (package == null)
{
throw new ArgumentNullException("package");
}
if (progress == null)
{
throw new ArgumentNullException("progress");
}
if (cancellationToken == null)
{
throw new ArgumentNullException("cancellationToken");
}
var installationInfo = new InstallationInfo
{
Id = Guid.NewGuid(),
Name = package.name,
UpdateClass = package.classification,
Version = package.versionStr
};
var innerCancellationTokenSource = new CancellationTokenSource();
var tuple = new Tuple<InstallationInfo, CancellationTokenSource>(installationInfo, innerCancellationTokenSource);
// Add it to the in-progress list
lock (CurrentInstallations)
{
CurrentInstallations.Add(tuple);
}
var innerProgress = new ActionableProgress<double>();
// Whenever the progress updates, update the outer progress object and InstallationInfo
innerProgress.RegisterAction(percent =>
{
progress.Report(percent);
installationInfo.PercentComplete = percent;
});
var linkedToken = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, innerCancellationTokenSource.Token).Token;
var installationEventArgs = new InstallationEventArgs
{
InstallationInfo = installationInfo,
PackageVersionInfo = package
};
EventHelper.QueueEventIfNotNull(PackageInstalling, this, installationEventArgs, _logger);
try
{
await InstallPackageInternal(package, innerProgress, linkedToken).ConfigureAwait(false);
lock (CurrentInstallations)
{
CurrentInstallations.Remove(tuple);
}
CompletedInstallations.Add(installationInfo);
EventHelper.QueueEventIfNotNull(PackageInstallationCompleted, this, installationEventArgs, _logger);
}
catch (OperationCanceledException)
{
lock (CurrentInstallations)
{
CurrentInstallations.Remove(tuple);
}
_logger.Info("Package installation cancelled: {0} {1}", package.name, package.versionStr);
EventHelper.QueueEventIfNotNull(PackageInstallationCancelled, this, installationEventArgs, _logger);
throw;
}
catch (Exception ex)
{
_logger.ErrorException("Package installation failed", ex);
lock (CurrentInstallations)
{
CurrentInstallations.Remove(tuple);
}
EventHelper.QueueEventIfNotNull(PackageInstallationFailed, this, new InstallationFailedEventArgs
{
InstallationInfo = installationInfo,
Exception = ex
}, _logger);
throw;
}
finally
{
// Dispose the progress object and remove the installation from the in-progress list
innerProgress.Dispose();
tuple.Item2.Dispose();
}
}
/// <summary>
/// Determines whether [is package version up to date] [the specified package version info].
/// </summary>
/// <param name="packageVersionInfo">The package version info.</param>
/// <param name="applicationVersion">The application version.</param>
/// <returns><c>true</c> if [is package version up to date] [the specified package version info]; otherwise, <c>false</c>.</returns>
private bool IsPackageVersionUpToDate(PackageVersionInfo packageVersionInfo, Version applicationVersion)
{
if (string.IsNullOrEmpty(packageVersionInfo.requiredVersionStr))
{
return true;
}
Version requiredVersion;
return Version.TryParse(packageVersionInfo.requiredVersionStr, out requiredVersion) && applicationVersion >= requiredVersion;
}
/// <summary>
/// Installs the package internal.
/// </summary>
/// <param name="package">The package.</param>
/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task InstallPackageInternal(PackageVersionInfo package, IProgress<double> progress, CancellationToken cancellationToken)
{
// Do the install
await PerformPackageInstallation(progress, package, cancellationToken).ConfigureAwait(false);
var extension = Path.GetExtension(package.targetFilename) ?? "";
// Do plugin-specific processing
if (!string.Equals(extension, ".zip", StringComparison.OrdinalIgnoreCase) && !string.Equals(extension, ".rar", StringComparison.OrdinalIgnoreCase) && !string.Equals(extension, ".7z", StringComparison.OrdinalIgnoreCase))
{
// Set last update time if we were installed before
var plugin = _applicationHost.Plugins.FirstOrDefault(p => string.Equals(p.Id.ToString(), package.guid, StringComparison.OrdinalIgnoreCase))
?? _applicationHost.Plugins.FirstOrDefault(p => p.Name.Equals(package.name, StringComparison.OrdinalIgnoreCase));
if (plugin != null)
{
OnPluginUpdated(plugin, package);
}
else
{
OnPluginInstalled(package);
}
}
}
private Version GetPackageVersion(PackageVersionInfo version)
{
return new Version(ValueOrDefault(version.versionStr, "0.0.0.1"));
}
/// <summary>
/// Initializes a new instance of the <see cref="PackageInfo"/> class.
/// </summary>
public PackageInfo()
{
versions = new PackageVersionInfo[] { };
}