jellyfin/MediaBrowser.Controller/Updates/InstallationManager.cs
2013-02-20 20:33:05 -05:00

487 lines
19 KiB
C#

using System.Security.Cryptography;
using Ionic.Zip;
using MediaBrowser.Common.Events;
using MediaBrowser.Common.Kernel;
using MediaBrowser.Common.Net;
using MediaBrowser.Common.Plugins;
using MediaBrowser.Common.Progress;
using MediaBrowser.Common.Serialization;
using MediaBrowser.Model.Updates;
using System;
using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Controller.Updates
{
/// <summary>
/// Manages all install, uninstall and update operations (both plugins and system)
/// </summary>
public class InstallationManager : BaseManager<Kernel>
{
/// <summary>
/// The current installations
/// </summary>
public readonly List<Tuple<InstallationInfo, CancellationTokenSource>> CurrentInstallations =
new List<Tuple<InstallationInfo, CancellationTokenSource>>();
/// <summary>
/// The completed installations
/// </summary>
public readonly ConcurrentBag<InstallationInfo> CompletedInstallations = new ConcurrentBag<InstallationInfo>();
#region PluginUninstalled Event
/// <summary>
/// Occurs when [plugin uninstalled].
/// </summary>
public event EventHandler<GenericEventArgs<IPlugin>> PluginUninstalled;
/// <summary>
/// Called when [plugin uninstalled].
/// </summary>
/// <param name="plugin">The plugin.</param>
private void OnPluginUninstalled(IPlugin plugin)
{
EventHelper.QueueEventIfNotNull(PluginUninstalled, this, new GenericEventArgs<IPlugin> { Argument = plugin });
// Notify connected ui's
Kernel.TcpManager.SendWebSocketMessage("PluginUninstalled", plugin.GetPluginInfo());
}
#endregion
#region PluginUpdated Event
/// <summary>
/// Occurs when [plugin updated].
/// </summary>
public event EventHandler<GenericEventArgs<Tuple<IPlugin, PackageVersionInfo>>> PluginUpdated;
/// <summary>
/// Called when [plugin updated].
/// </summary>
/// <param name="plugin">The plugin.</param>
/// <param name="newVersion">The new version.</param>
public 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) });
Kernel.NotifyPendingRestart();
}
#endregion
#region PluginInstalled Event
/// <summary>
/// Occurs when [plugin updated].
/// </summary>
public event EventHandler<GenericEventArgs<PackageVersionInfo>> PluginInstalled;
/// <summary>
/// Called when [plugin installed].
/// </summary>
/// <param name="package">The package.</param>
public 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 });
Kernel.NotifyPendingRestart();
}
#endregion
/// <summary>
/// Initializes a new instance of the <see cref="InstallationManager" /> class.
/// </summary>
/// <param name="kernel">The kernel.</param>
public InstallationManager(Kernel kernel)
: base(kernel)
{
}
/// <summary>
/// Gets all available packages.
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="packageType">Type of the package.</param>
/// <param name="applicationVersion">The application version.</param>
/// <returns>Task{List{PackageInfo}}.</returns>
public async Task<IEnumerable<PackageInfo>> GetAvailablePackages(CancellationToken cancellationToken,
PackageType? packageType = null,
Version applicationVersion = null)
{
var data = new Dictionary<string, string> { { "key", Kernel.PluginSecurityManager.SupporterKey }, { "mac", NetUtils.GetMacAddress() } };
using (var json = await Kernel.HttpManager.Post(Controller.Kernel.MBAdminUrl + "service/package/retrieveall", data, Kernel.ResourcePools.Mb, cancellationToken).ConfigureAwait(false))
{
cancellationToken.ThrowIfCancellationRequested();
var packages = JsonSerializer.DeserializeFromStream<List<PackageInfo>>(json).ToList();
foreach (var package in packages)
{
package.versions = package.versions.Where(v => !string.IsNullOrWhiteSpace(v.sourceUrl))
.OrderByDescending(v => v.version).ToList();
}
if (packageType.HasValue)
{
packages = packages.Where(p => p.type == packageType.Value).ToList();
}
// If an app version was supplied, filter the versions for each package to only include supported versions
if (applicationVersion != null)
{
foreach (var package in packages)
{
package.versions = package.versions.Where(v => IsPackageVersionUpToDate(v, applicationVersion)).ToList();
}
}
// Remove packages with no versions
packages = packages.Where(p => p.versions.Any()).ToList();
return packages;
}
}
/// <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>
/// Gets the package.
/// </summary>
/// <param name="name">The name.</param>
/// <param name="classification">The classification.</param>
/// <param name="version">The version.</param>
/// <returns>Task{PackageVersionInfo}.</returns>
public async Task<PackageVersionInfo> GetPackage(string name, PackageVersionClass classification, Version version)
{
var packages = await GetAvailablePackages(CancellationToken.None).ConfigureAwait(false);
var package = packages.FirstOrDefault(p => p.name.Equals(name, StringComparison.OrdinalIgnoreCase));
if (package == null)
{
return null;
}
return package.versions.FirstOrDefault(v => v.version.Equals(version) && v.classification == classification);
}
/// <summary>
/// Gets the latest compatible version.
/// </summary>
/// <param name="name">The name.</param>
/// <param name="classification">The classification.</param>
/// <returns>Task{PackageVersionInfo}.</returns>
public async Task<PackageVersionInfo> GetLatestCompatibleVersion(string name, PackageVersionClass classification = PackageVersionClass.Release)
{
var packages = await GetAvailablePackages(CancellationToken.None).ConfigureAwait(false);
return GetLatestCompatibleVersion(packages, name, classification);
}
/// <summary>
/// Gets the latest compatible version.
/// </summary>
/// <param name="availablePackages">The available packages.</param>
/// <param name="name">The name.</param>
/// <param name="classification">The classification.</param>
/// <returns>PackageVersionInfo.</returns>
public PackageVersionInfo GetLatestCompatibleVersion(IEnumerable<PackageInfo> availablePackages, string name, PackageVersionClass classification = PackageVersionClass.Release)
{
var package = availablePackages.FirstOrDefault(p => p.name.Equals(name, StringComparison.OrdinalIgnoreCase));
if (package == null)
{
return null;
}
return package.versions
.OrderByDescending(v => v.version)
.FirstOrDefault(v => v.classification <= classification && IsPackageVersionUpToDate(v, Kernel.ApplicationVersion));
}
/// <summary>
/// Gets the available plugin updates.
/// </summary>
/// <param name="withAutoUpdateEnabled">if set to <c>true</c> [with auto update enabled].</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{IEnumerable{PackageVersionInfo}}.</returns>
public async Task<IEnumerable<PackageVersionInfo>> GetAvailablePluginUpdates(bool withAutoUpdateEnabled, CancellationToken cancellationToken)
{
var catalog = await Kernel.InstallationManager.GetAvailablePackages(cancellationToken).ConfigureAwait(false);
var plugins = Kernel.Plugins;
if (withAutoUpdateEnabled)
{
plugins = plugins.Where(p => p.Configuration.EnableAutoUpdate);
}
// Figure out what needs to be installed
return plugins.Select(p =>
{
var latestPluginInfo = Kernel.InstallationManager.GetLatestCompatibleVersion(catalog, p.Name, p.Configuration.UpdateClass);
return latestPluginInfo != null && latestPluginInfo.version > p.Version ? latestPluginInfo : null;
}).Where(p => !CompletedInstallations.Any(i => i.Name.Equals(p.name, StringComparison.OrdinalIgnoreCase)))
.Where(p => p != null && !string.IsNullOrWhiteSpace(p.sourceUrl));
}
/// <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;
Kernel.TcpManager.SendWebSocketMessage("PackageInstalling", installationInfo);
try
{
await InstallPackageInternal(package, innerProgress, linkedToken).ConfigureAwait(false);
lock (CurrentInstallations)
{
CurrentInstallations.Remove(tuple);
}
CompletedInstallations.Add(installationInfo);
Kernel.TcpManager.SendWebSocketMessage("PackageInstallationCompleted", installationInfo);
}
catch (OperationCanceledException)
{
lock (CurrentInstallations)
{
CurrentInstallations.Remove(tuple);
}
Logger.Info("Package installation cancelled: {0} {1}", package.name, package.versionStr);
Kernel.TcpManager.SendWebSocketMessage("PackageInstallationCancelled", installationInfo);
throw;
}
catch
{
lock (CurrentInstallations)
{
CurrentInstallations.Remove(tuple);
}
Kernel.TcpManager.SendWebSocketMessage("PackageInstallationFailed", installationInfo);
throw;
}
finally
{
// Dispose the progress object and remove the installation from the in-progress list
innerProgress.Dispose();
tuple.Item2.Dispose();
}
}
/// <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)
{
// 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.sourceUrl), ".zip", StringComparison.OrdinalIgnoreCase);
var target = isArchive ? Kernel.ApplicationPaths.ProgramDataPath : Path.Combine(Kernel.ApplicationPaths.PluginsPath, package.targetFilename);
// Download to temporary file so that, if interrupted, it won't destroy the existing installation
var tempFile = await Kernel.HttpManager.FetchToTempFile(package.sourceUrl, Kernel.ResourcePools.Mb, cancellationToken, 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 based on type
if (isArchive)
{
try
{
// Extract to target in full - overwriting
using (var zipFile = ZipFile.Read(tempFile))
{
zipFile.ExtractAll(target, ExtractExistingFileAction.OverwriteSilently);
}
}
catch (IOException e)
{
Logger.ErrorException("Error attempting to extract archive from {0} to {1}", e, tempFile, target);
throw;
}
}
else
{
try
{
File.Copy(tempFile, target, true);
File.Delete(tempFile);
}
catch (IOException e)
{
Logger.ErrorException("Error attempting to move file from {0} to {1}", e, tempFile, target);
throw;
}
}
// Set last update time if we were installed before
var plugin = Kernel.Plugins.FirstOrDefault(p => p.Name.Equals(package.name, StringComparison.OrdinalIgnoreCase));
if (plugin != null)
{
// Synchronize the UpdateClass value
if (plugin.Configuration.UpdateClass != package.classification)
{
plugin.Configuration.UpdateClass = package.classification;
plugin.SaveConfiguration();
}
OnPluginUpdated(plugin, package);
}
else
{
OnPluginInstalled(package);
}
}
/// <summary>
/// Uninstalls a plugin
/// </summary>
/// <param name="plugin">The plugin.</param>
/// <exception cref="System.ArgumentException"></exception>
public void UninstallPlugin(IPlugin plugin)
{
if (plugin.IsCorePlugin)
{
throw new ArgumentException(string.Format("{0} cannot be uninstalled because it is a core plugin.", plugin.Name));
}
plugin.OnUninstalling();
// Remove it the quick way for now
Kernel.RemovePlugin(plugin);
File.Delete(plugin.AssemblyFilePath);
OnPluginUninstalled(plugin);
Kernel.NotifyPendingRestart();
}
/// <summary>
/// Releases unmanaged and - optionally - managed resources.
/// </summary>
/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
protected override void Dispose(bool dispose)
{
if (dispose)
{
lock (CurrentInstallations)
{
foreach (var tuple in CurrentInstallations)
{
tuple.Item2.Dispose();
}
CurrentInstallations.Clear();
}
}
base.Dispose(dispose);
}
}
}