jellyfin-server/Emby.Server.Implementations/Updates/InstallationManager.cs

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C#
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using System;
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using System.Collections.Concurrent;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using MediaBrowser.Common;
using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.Net;
using MediaBrowser.Common.Plugins;
using MediaBrowser.Common.Progress;
using MediaBrowser.Common.Updates;
using MediaBrowser.Controller.Configuration;
using MediaBrowser.Model.Cryptography;
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using MediaBrowser.Model.Events;
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using MediaBrowser.Model.IO;
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using MediaBrowser.Model.Serialization;
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using MediaBrowser.Model.Updates;
using Microsoft.Extensions.Logging;
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namespace Emby.Server.Implementations.Updates
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{
/// <summary>
/// Manages all install, uninstall and update operations (both plugins and system)
/// </summary>
public class InstallationManager : IInstallationManager
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{
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public event EventHandler<InstallationEventArgs> PackageInstalling;
public event EventHandler<InstallationEventArgs> PackageInstallationCompleted;
public event EventHandler<InstallationFailedEventArgs> PackageInstallationFailed;
public event EventHandler<InstallationEventArgs> PackageInstallationCancelled;
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/// <summary>
/// The current installations
/// </summary>
public List<Tuple<InstallationInfo, CancellationTokenSource>> CurrentInstallations { get; set; }
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/// <summary>
/// The completed installations
/// </summary>
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private ConcurrentBag<InstallationInfo> CompletedInstallationsInternal { get; set; }
public IEnumerable<InstallationInfo> CompletedInstallations => CompletedInstallationsInternal;
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#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)
{
PluginUninstalled?.Invoke(this, new GenericEventArgs<IPlugin> { Argument = plugin });
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}
#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>
private void OnPluginUpdated(IPlugin plugin, PackageVersionInfo newVersion)
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{
_logger.LogInformation("Plugin updated: {0} {1} {2}", newVersion.name, newVersion.versionStr ?? string.Empty, newVersion.classification);
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PluginUpdated?.Invoke(this, new GenericEventArgs<Tuple<IPlugin, PackageVersionInfo>> { Argument = new Tuple<IPlugin, PackageVersionInfo>(plugin, newVersion) });
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_applicationHost.NotifyPendingRestart();
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}
#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>
private void OnPluginInstalled(PackageVersionInfo package)
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{
_logger.LogInformation("New plugin installed: {0} {1} {2}", package.name, package.versionStr ?? string.Empty, package.classification);
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PluginInstalled?.Invoke(this, new GenericEventArgs<PackageVersionInfo> { Argument = package });
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_applicationHost.NotifyPendingRestart();
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}
#endregion
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/// <summary>
/// The _logger
/// </summary>
private readonly ILogger _logger;
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private readonly IApplicationPaths _appPaths;
private readonly IHttpClient _httpClient;
private readonly IJsonSerializer _jsonSerializer;
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private readonly IServerConfigurationManager _config;
private readonly IFileSystem _fileSystem;
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/// <summary>
/// Gets the application host.
/// </summary>
/// <value>The application host.</value>
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private readonly IApplicationHost _applicationHost;
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private readonly ICryptoProvider _cryptographyProvider;
private readonly IZipClient _zipClient;
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// netframework or netcore
private readonly string _packageRuntime;
public InstallationManager(
ILoggerFactory loggerFactory,
IApplicationHost appHost,
IApplicationPaths appPaths,
IHttpClient httpClient,
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IJsonSerializer jsonSerializer,
IServerConfigurationManager config,
IFileSystem fileSystem,
ICryptoProvider cryptographyProvider,
IZipClient zipClient,
string packageRuntime)
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{
if (loggerFactory == null)
{
throw new ArgumentNullException(nameof(loggerFactory));
}
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CurrentInstallations = new List<Tuple<InstallationInfo, CancellationTokenSource>>();
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CompletedInstallationsInternal = new ConcurrentBag<InstallationInfo>();
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_applicationHost = appHost;
_appPaths = appPaths;
_httpClient = httpClient;
_jsonSerializer = jsonSerializer;
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_config = config;
_fileSystem = fileSystem;
_cryptographyProvider = cryptographyProvider;
_zipClient = zipClient;
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_packageRuntime = packageRuntime;
_logger = loggerFactory.CreateLogger(nameof(InstallationManager));
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}
private static Version GetPackageVersion(PackageVersionInfo version)
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{
return new Version(ValueOrDefault(version.versionStr, "0.0.0.1"));
}
private static string ValueOrDefault(string str, string def)
{
return string.IsNullOrEmpty(str) ? def : str;
}
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/// <summary>
/// Gets all available packages.
/// </summary>
/// <returns>Task{List{PackageInfo}}.</returns>
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public async Task<List<PackageInfo>> GetAvailablePackages(CancellationToken cancellationToken,
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bool withRegistration = true,
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string packageType = null,
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Version applicationVersion = null)
{
var packages = await GetAvailablePackagesWithoutRegistrationInfo(cancellationToken).ConfigureAwait(false);
return FilterPackages(packages, packageType, applicationVersion);
}
/// <summary>
/// Gets all available packages.
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task{List{PackageInfo}}.</returns>
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public async Task<List<PackageInfo>> GetAvailablePackagesWithoutRegistrationInfo(CancellationToken cancellationToken)
{
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using (var response = await _httpClient.SendAsync(new HttpRequestOptions
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{
Url = "https://repo.jellyfin.org/releases/plugin/manifest.json",
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CancellationToken = cancellationToken,
Progress = new SimpleProgress<double>(),
CacheLength = GetCacheLength()
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}, "GET").ConfigureAwait(false))
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{
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using (var stream = response.Content)
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{
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return FilterPackages(await _jsonSerializer.DeserializeFromStreamAsync<PackageInfo[]>(stream).ConfigureAwait(false));
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}
}
}
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private PackageVersionClass GetSystemUpdateLevel()
{
return _applicationHost.SystemUpdateLevel;
}
private static TimeSpan GetCacheLength()
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{
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return TimeSpan.FromMinutes(3);
}
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protected List<PackageInfo> FilterPackages(IEnumerable<PackageInfo> packages)
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{
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var list = new List<PackageInfo>();
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foreach (var package in packages)
{
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var versions = new List<PackageVersionInfo>();
foreach (var version in package.versions)
{
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if (string.IsNullOrEmpty(version.sourceUrl))
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{
continue;
}
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if (string.IsNullOrEmpty(version.runtimes) || version.runtimes.IndexOf(_packageRuntime, StringComparison.OrdinalIgnoreCase) == -1)
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{
continue;
}
versions.Add(version);
}
package.versions = versions
.OrderByDescending(GetPackageVersion)
.ToArray();
if (package.versions.Length == 0)
{
continue;
}
list.Add(package);
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}
// Remove packages with no versions
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return list;
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}
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protected List<PackageInfo> FilterPackages(IEnumerable<PackageInfo> packages, string packageType, Version applicationVersion)
{
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var packagesList = FilterPackages(packages);
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var returnList = new List<PackageInfo>();
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var filterOnPackageType = !string.IsNullOrEmpty(packageType);
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foreach (var p in packagesList)
{
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if (filterOnPackageType && !string.Equals(p.type, packageType, StringComparison.OrdinalIgnoreCase))
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{
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continue;
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}
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// If an app version was supplied, filter the versions for each package to only include supported versions
if (applicationVersion != null)
{
p.versions = p.versions.Where(v => IsPackageVersionUpToDate(v, applicationVersion)).ToArray();
}
if (p.versions.Length == 0)
{
continue;
}
returnList.Add(p);
}
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return returnList;
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}
/// <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="currentServerVersion">The current server version.</param>
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/// <returns><c>true</c> if [is package version up to date] [the specified package version info]; otherwise, <c>false</c>.</returns>
private static bool IsPackageVersionUpToDate(PackageVersionInfo packageVersionInfo, Version currentServerVersion)
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{
if (string.IsNullOrEmpty(packageVersionInfo.requiredVersionStr))
{
return true;
}
return Version.TryParse(packageVersionInfo.requiredVersionStr, out var requiredVersion) && currentServerVersion >= requiredVersion;
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}
/// <summary>
/// Gets the package.
/// </summary>
/// <param name="name">The name.</param>
/// <param name="guid">The assembly guid</param>
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/// <param name="classification">The classification.</param>
/// <param name="version">The version.</param>
/// <returns>Task{PackageVersionInfo}.</returns>
public async Task<PackageVersionInfo> GetPackage(string name, string guid, PackageVersionClass classification, Version version)
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{
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var packages = await GetAvailablePackages(CancellationToken.None, false).ConfigureAwait(false);
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var package = packages.FirstOrDefault(p => string.Equals(p.guid, guid ?? "none", StringComparison.OrdinalIgnoreCase))
?? packages.FirstOrDefault(p => p.name.Equals(name, StringComparison.OrdinalIgnoreCase));
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if (package == null)
{
return null;
}
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return package.versions.FirstOrDefault(v => GetPackageVersion(v).Equals(version) && v.classification == classification);
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}
/// <summary>
/// Gets the latest compatible version.
/// </summary>
/// <param name="name">The name.</param>
/// <param name="guid">The assembly guid if this is a plug-in</param>
/// <param name="currentServerVersion">The current server version.</param>
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/// <param name="classification">The classification.</param>
/// <returns>Task{PackageVersionInfo}.</returns>
public async Task<PackageVersionInfo> GetLatestCompatibleVersion(string name, string guid, Version currentServerVersion, PackageVersionClass classification = PackageVersionClass.Release)
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{
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var packages = await GetAvailablePackages(CancellationToken.None, false).ConfigureAwait(false);
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return GetLatestCompatibleVersion(packages, name, guid, currentServerVersion, classification);
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}
/// <summary>
/// Gets the latest compatible version.
/// </summary>
/// <param name="availablePackages">The available packages.</param>
/// <param name="name">The name.</param>
/// <param name="currentServerVersion">The current server version.</param>
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/// <param name="classification">The classification.</param>
/// <returns>PackageVersionInfo.</returns>
public PackageVersionInfo GetLatestCompatibleVersion(IEnumerable<PackageInfo> availablePackages, string name, string guid, Version currentServerVersion, PackageVersionClass classification = PackageVersionClass.Release)
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{
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var package = availablePackages.FirstOrDefault(p => string.Equals(p.guid, guid ?? "none", StringComparison.OrdinalIgnoreCase))
?? availablePackages.FirstOrDefault(p => p.name.Equals(name, StringComparison.OrdinalIgnoreCase));
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if (package == null)
{
return null;
}
return package.versions
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.OrderByDescending(GetPackageVersion)
.FirstOrDefault(v => v.classification <= classification && IsPackageVersionUpToDate(v, currentServerVersion));
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}
/// <summary>
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/// Gets the available plugin updates.
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/// </summary>
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/// <param name="applicationVersion">The current server version.</param>
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/// <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>
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public async Task<IEnumerable<PackageVersionInfo>> GetAvailablePluginUpdates(Version applicationVersion, bool withAutoUpdateEnabled, CancellationToken cancellationToken)
{
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var catalog = await GetAvailablePackagesWithoutRegistrationInfo(cancellationToken).ConfigureAwait(false);
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var systemUpdateLevel = GetSystemUpdateLevel();
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// Figure out what needs to be installed
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return _applicationHost.Plugins.Select(p =>
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{
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var latestPluginInfo = GetLatestCompatibleVersion(catalog, p.Name, p.Id.ToString(), applicationVersion, systemUpdateLevel);
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return latestPluginInfo != null && GetPackageVersion(latestPluginInfo) > p.Version ? latestPluginInfo : null;
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}).Where(i => i != null)
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.Where(p => !string.IsNullOrEmpty(p.sourceUrl) && !CompletedInstallations.Any(i => string.Equals(i.AssemblyGuid, p.guid, StringComparison.OrdinalIgnoreCase)));
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}
/// <summary>
/// Installs the package.
/// </summary>
/// <param name="package">The package.</param>
/// <param name="isPlugin">if set to <c>true</c> [is plugin].</param>
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/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
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/// <exception cref="ArgumentNullException">package</exception>
public async Task InstallPackage(PackageVersionInfo package, bool isPlugin, IProgress<double> progress, CancellationToken cancellationToken)
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{
if (package == null)
{
throw new ArgumentNullException(nameof(package));
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}
if (progress == null)
{
throw new ArgumentNullException(nameof(progress));
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}
var installationInfo = new InstallationInfo
{
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Id = Guid.NewGuid(),
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Name = package.name,
AssemblyGuid = package.guid,
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UpdateClass = package.classification,
Version = package.versionStr
};
var innerCancellationTokenSource = new CancellationTokenSource();
var tuple = new Tuple<InstallationInfo, CancellationTokenSource>(installationInfo, innerCancellationTokenSource);
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// Add it to the in-progress list
lock (CurrentInstallations)
{
CurrentInstallations.Add(tuple);
}
var innerProgress = new ActionableProgress<double>();
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// 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;
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var installationEventArgs = new InstallationEventArgs
{
InstallationInfo = installationInfo,
PackageVersionInfo = package
};
PackageInstalling?.Invoke(this, installationEventArgs);
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try
{
await InstallPackageInternal(package, isPlugin, innerProgress, linkedToken).ConfigureAwait(false);
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lock (CurrentInstallations)
{
CurrentInstallations.Remove(tuple);
}
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CompletedInstallationsInternal.Add(installationInfo);
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PackageInstallationCompleted?.Invoke(this, installationEventArgs);
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}
catch (OperationCanceledException)
{
lock (CurrentInstallations)
{
CurrentInstallations.Remove(tuple);
}
_logger.LogInformation("Package installation cancelled: {0} {1}", package.name, package.versionStr);
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PackageInstallationCancelled?.Invoke(this, installationEventArgs);
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throw;
}
catch (Exception ex)
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{
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_logger.LogError(ex, "Package installation failed");
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lock (CurrentInstallations)
{
CurrentInstallations.Remove(tuple);
}
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PackageInstallationFailed?.Invoke(this, new InstallationFailedEventArgs
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{
InstallationInfo = installationInfo,
Exception = ex
});
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throw;
}
finally
{
// Dispose the progress object and remove the installation from the in-progress list
tuple.Item2.Dispose();
}
}
/// <summary>
/// Installs the package internal.
/// </summary>
/// <param name="package">The package.</param>
/// <param name="isPlugin">if set to <c>true</c> [is plugin].</param>
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/// <param name="progress">The progress.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
private async Task InstallPackageInternal(PackageVersionInfo package, bool isPlugin, IProgress<double> progress, CancellationToken cancellationToken)
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{
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IPlugin plugin = null;
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if (isPlugin)
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{
// Set last update time if we were installed before
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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));
}
string targetPath = plugin == null ? null : plugin.AssemblyFilePath;
// Do the install
await PerformPackageInstallation(progress, targetPath, package, cancellationToken).ConfigureAwait(false);
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// Do plugin-specific processing
if (isPlugin)
{
if (plugin == null)
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{
OnPluginInstalled(package);
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}
else
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{
OnPluginUpdated(plugin, package);
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}
}
}
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private async Task PerformPackageInstallation(IProgress<double> progress, string target, PackageVersionInfo package, CancellationToken cancellationToken)
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{
var extension = Path.GetExtension(package.targetFilename);
var isArchive = string.Equals(extension, ".zip", StringComparison.OrdinalIgnoreCase);
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if (!isArchive)
{
_logger.LogError("Only zip packages are supported. {Filename} is not a zip archive.", package.targetFilename);
return;
}
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if (target == null)
{
target = Path.Combine(_appPaths.PluginsPath, Path.GetFileNameWithoutExtension(package.targetFilename));
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}
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// 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();
// TODO: Validate with a checksum, *properly*
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// Success - move it to the real target
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try
{
using (var stream = File.OpenRead(tempFile))
{
_zipClient.ExtractAllFromZip(stream, target, true);
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}
}
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catch (IOException ex)
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{
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_logger.LogError(ex, "Error attempting to extract {TempFile} to {TargetFile}", tempFile, target);
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throw;
}
try
{
_fileSystem.DeleteFile(tempFile);
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}
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catch (IOException ex)
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{
// Don't fail because of this
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_logger.LogError(ex, "Error deleting temp file {TempFile}", tempFile);
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}
}
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/// <summary>
/// Uninstalls a plugin
/// </summary>
/// <param name="plugin">The plugin.</param>
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/// <exception cref="ArgumentException"></exception>
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public void UninstallPlugin(IPlugin plugin)
{
plugin.OnUninstalling();
// Remove it the quick way for now
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_applicationHost.RemovePlugin(plugin);
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var path = plugin.AssemblyFilePath;
_logger.LogInformation("Deleting plugin file {0}", path);
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// Make this case-insensitive to account for possible incorrect assembly naming
var file = _fileSystem.GetFilePaths(Path.GetDirectoryName(path))
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.FirstOrDefault(i => string.Equals(i, path, StringComparison.OrdinalIgnoreCase));
if (!string.IsNullOrWhiteSpace(file))
{
path = file;
}
_fileSystem.DeleteFile(path);
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var list = _config.Configuration.UninstalledPlugins.ToList();
var filename = Path.GetFileName(path);
if (!list.Contains(filename, StringComparer.OrdinalIgnoreCase))
{
list.Add(filename);
_config.Configuration.UninstalledPlugins = list.ToArray();
_config.SaveConfiguration();
}
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OnPluginUninstalled(plugin);
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_applicationHost.NotifyPendingRestart();
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}
/// <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 virtual void Dispose(bool dispose)
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{
if (dispose)
{
lock (CurrentInstallations)
{
foreach (var tuple in CurrentInstallations)
{
tuple.Item2.Dispose();
}
CurrentInstallations.Clear();
}
}
}
public void Dispose()
{
Dispose(true);
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}
}
}