477 lines
17 KiB
C#
477 lines
17 KiB
C#
using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Net.Http;
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using System.Security.Cryptography;
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using System.Threading;
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using System.Threading.Tasks;
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using MediaBrowser.Common;
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using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.Net;
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using MediaBrowser.Common.Plugins;
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using MediaBrowser.Common.Updates;
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using MediaBrowser.Controller.Configuration;
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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;
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using Microsoft.Extensions.Logging;
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namespace Emby.Server.Implementations.Updates
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{
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/// <summary>
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/// Manages all install, uninstall and update operations (both plugins and system).
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/// </summary>
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public class InstallationManager : IInstallationManager
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{
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/// <summary>
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/// The _logger.
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/// </summary>
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private readonly ILogger _logger;
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private readonly IApplicationPaths _appPaths;
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private readonly IHttpClient _httpClient;
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private readonly IJsonSerializer _jsonSerializer;
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private readonly IServerConfigurationManager _config;
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private readonly IFileSystem _fileSystem;
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/// <summary>
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/// Gets the application host.
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/// </summary>
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/// <value>The application host.</value>
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private readonly IApplicationHost _applicationHost;
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private readonly IZipClient _zipClient;
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private readonly object _currentInstallationsLock = new object();
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/// <summary>
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/// The current installations.
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/// </summary>
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private readonly List<(InstallationInfo info, CancellationTokenSource token)> _currentInstallations;
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/// <summary>
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/// The completed installations.
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/// </summary>
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private readonly ConcurrentBag<InstallationInfo> _completedInstallationsInternal;
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public InstallationManager(
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ILogger<InstallationManager> logger,
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IApplicationHost appHost,
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IApplicationPaths appPaths,
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IHttpClient httpClient,
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IJsonSerializer jsonSerializer,
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IServerConfigurationManager config,
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IFileSystem fileSystem,
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IZipClient zipClient)
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{
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if (logger == null)
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{
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throw new ArgumentNullException(nameof(logger));
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}
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_currentInstallations = new List<(InstallationInfo, CancellationTokenSource)>();
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_completedInstallationsInternal = new ConcurrentBag<InstallationInfo>();
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_logger = logger;
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_applicationHost = appHost;
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_appPaths = appPaths;
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_httpClient = httpClient;
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_jsonSerializer = jsonSerializer;
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_config = config;
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_fileSystem = fileSystem;
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_zipClient = zipClient;
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}
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/// <inheritdoc />
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public event EventHandler<InstallationEventArgs> PackageInstalling;
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/// <inheritdoc />
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public event EventHandler<InstallationEventArgs> PackageInstallationCompleted;
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/// <inheritdoc />
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public event EventHandler<InstallationFailedEventArgs> PackageInstallationFailed;
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/// <inheritdoc />
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public event EventHandler<InstallationEventArgs> PackageInstallationCancelled;
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/// <inheritdoc />
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public event EventHandler<GenericEventArgs<IPlugin>> PluginUninstalled;
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/// <inheritdoc />
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public event EventHandler<GenericEventArgs<(IPlugin, PackageVersionInfo)>> PluginUpdated;
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/// <inheritdoc />
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public event EventHandler<GenericEventArgs<PackageVersionInfo>> PluginInstalled;
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/// <inheritdoc />
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public IEnumerable<InstallationInfo> CompletedInstallations => _completedInstallationsInternal;
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/// <inheritdoc />
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public async Task<IReadOnlyList<PackageInfo>> GetAvailablePackages(CancellationToken cancellationToken = default)
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{
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using (var response = await _httpClient.SendAsync(
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new HttpRequestOptions
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{
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Url = "https://repo.jellyfin.org/releases/plugin/manifest.json",
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CancellationToken = cancellationToken,
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CacheMode = CacheMode.Unconditional,
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CacheLength = TimeSpan.FromMinutes(3)
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},
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HttpMethod.Get).ConfigureAwait(false))
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using (Stream stream = response.Content)
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{
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return await _jsonSerializer.DeserializeFromStreamAsync<IReadOnlyList<PackageInfo>>(
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stream).ConfigureAwait(false);
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}
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}
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/// <inheritdoc />
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public IEnumerable<PackageInfo> FilterPackages(
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IEnumerable<PackageInfo> availablePackages,
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string name = null,
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Guid guid = default)
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{
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if (name != null)
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{
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availablePackages = availablePackages.Where(x => x.name.Equals(name, StringComparison.OrdinalIgnoreCase));
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}
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if (guid != Guid.Empty)
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{
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var strGuid = guid.ToString("N", CultureInfo.InvariantCulture);
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availablePackages = availablePackages.Where(x => x.guid.Equals(strGuid, StringComparison.OrdinalIgnoreCase));
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}
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return availablePackages;
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}
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/// <inheritdoc />
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public IEnumerable<PackageVersionInfo> GetCompatibleVersions(
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IEnumerable<PackageVersionInfo> availableVersions,
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Version minVersion = null,
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PackageVersionClass classification = PackageVersionClass.Release)
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{
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var appVer = _applicationHost.ApplicationVersion;
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availableVersions = availableVersions
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.Where(x => x.classification == classification
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&& Version.Parse(x.requiredVersionStr) <= appVer);
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if (minVersion != null)
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{
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availableVersions = availableVersions.Where(x => x.Version >= minVersion);
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}
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return availableVersions.OrderByDescending(x => x.Version);
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}
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/// <inheritdoc />
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public IEnumerable<PackageVersionInfo> GetCompatibleVersions(
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IEnumerable<PackageInfo> availablePackages,
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string name = null,
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Guid guid = default,
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Version minVersion = null,
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PackageVersionClass classification = PackageVersionClass.Release)
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{
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var package = FilterPackages(availablePackages, name, guid).FirstOrDefault();
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// Package not found.
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if (package == null)
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{
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return null;
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}
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return GetCompatibleVersions(
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package.versions,
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minVersion,
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classification);
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}
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/// <inheritdoc />
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public async Task<IEnumerable<PackageVersionInfo>> GetAvailablePluginUpdates(CancellationToken cancellationToken = default)
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{
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var catalog = await GetAvailablePackages(cancellationToken).ConfigureAwait(false);
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var systemUpdateLevel = _applicationHost.SystemUpdateLevel;
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// Figure out what needs to be installed
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return _applicationHost.Plugins.Select(x =>
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{
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var compatibleversions = GetCompatibleVersions(catalog, x.Name, x.Id, x.Version, systemUpdateLevel);
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return compatibleversions.FirstOrDefault(y => y.Version > x.Version);
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}).Where(x => x != null)
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.Where(x => !CompletedInstallations.Any(y => string.Equals(y.AssemblyGuid, x.guid, StringComparison.OrdinalIgnoreCase)));
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}
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/// <inheritdoc />
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public async Task InstallPackage(PackageVersionInfo package, CancellationToken cancellationToken)
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{
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if (package == null)
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{
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throw new ArgumentNullException(nameof(package));
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}
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var installationInfo = new InstallationInfo
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{
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Id = Guid.NewGuid(),
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Name = package.name,
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AssemblyGuid = package.guid,
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UpdateClass = package.classification,
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Version = package.versionStr
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};
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var innerCancellationTokenSource = new CancellationTokenSource();
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var tuple = (installationInfo, innerCancellationTokenSource);
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// Add it to the in-progress list
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lock (_currentInstallationsLock)
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{
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_currentInstallations.Add(tuple);
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}
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var linkedToken = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, innerCancellationTokenSource.Token).Token;
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var installationEventArgs = new InstallationEventArgs
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{
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InstallationInfo = installationInfo,
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PackageVersionInfo = package
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};
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PackageInstalling?.Invoke(this, installationEventArgs);
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try
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{
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await InstallPackageInternal(package, linkedToken).ConfigureAwait(false);
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lock (_currentInstallationsLock)
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{
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_currentInstallations.Remove(tuple);
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}
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_completedInstallationsInternal.Add(installationInfo);
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PackageInstallationCompleted?.Invoke(this, installationEventArgs);
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}
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catch (OperationCanceledException)
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{
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lock (_currentInstallationsLock)
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{
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_currentInstallations.Remove(tuple);
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}
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_logger.LogInformation("Package installation cancelled: {0} {1}", package.name, package.versionStr);
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PackageInstallationCancelled?.Invoke(this, installationEventArgs);
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throw;
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Package installation failed");
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lock (_currentInstallationsLock)
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{
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_currentInstallations.Remove(tuple);
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}
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PackageInstallationFailed?.Invoke(this, new InstallationFailedEventArgs
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{
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InstallationInfo = installationInfo,
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Exception = ex
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});
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throw;
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}
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finally
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{
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// Dispose the progress object and remove the installation from the in-progress list
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tuple.innerCancellationTokenSource.Dispose();
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}
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}
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/// <summary>
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/// Installs the package internal.
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/// </summary>
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/// <param name="package">The package.</param>
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/// <param name="cancellationToken">The cancellation token.</param>
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/// <returns><see cref="Task" />.</returns>
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private async Task InstallPackageInternal(PackageVersionInfo package, CancellationToken cancellationToken)
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{
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// Set last update time if we were installed before
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IPlugin plugin = _applicationHost.Plugins.FirstOrDefault(p => string.Equals(p.Id.ToString(), package.guid, StringComparison.OrdinalIgnoreCase))
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?? _applicationHost.Plugins.FirstOrDefault(p => p.Name.Equals(package.name, StringComparison.OrdinalIgnoreCase));
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// Do the install
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await PerformPackageInstallation(package, cancellationToken).ConfigureAwait(false);
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// Do plugin-specific processing
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if (plugin == null)
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{
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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>(package));
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}
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else
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{
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_logger.LogInformation("Plugin updated: {0} {1} {2}", package.name, package.versionStr ?? string.Empty, package.classification);
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PluginUpdated?.Invoke(this, new GenericEventArgs<(IPlugin, PackageVersionInfo)>((plugin, package)));
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}
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_applicationHost.NotifyPendingRestart();
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}
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private async Task PerformPackageInstallation(PackageVersionInfo package, CancellationToken cancellationToken)
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{
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var extension = Path.GetExtension(package.targetFilename);
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if (!string.Equals(extension, ".zip", StringComparison.OrdinalIgnoreCase))
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{
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_logger.LogError("Only zip packages are supported. {Filename} is not a zip archive.", package.targetFilename);
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return;
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}
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// Always override the passed-in target (which is a file) and figure it out again
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string targetDir = Path.Combine(_appPaths.PluginsPath, package.name);
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// CA5351: Do Not Use Broken Cryptographic Algorithms
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#pragma warning disable CA5351
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using (var res = await _httpClient.SendAsync(
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new HttpRequestOptions
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{
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Url = package.sourceUrl,
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CancellationToken = cancellationToken,
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// We need it to be buffered for setting the position
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BufferContent = true
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},
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HttpMethod.Get).ConfigureAwait(false))
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using (var stream = res.Content)
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using (var md5 = MD5.Create())
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{
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cancellationToken.ThrowIfCancellationRequested();
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var hash = Hex.Encode(md5.ComputeHash(stream));
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if (!string.Equals(package.checksum, hash, StringComparison.OrdinalIgnoreCase))
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{
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_logger.LogError(
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"The checksums didn't match while installing {Package}, expected: {Expected}, got: {Received}",
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package.name,
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package.checksum,
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hash);
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throw new InvalidDataException("The checksum of the received data doesn't match.");
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}
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if (Directory.Exists(targetDir))
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{
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Directory.Delete(targetDir, true);
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}
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stream.Position = 0;
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_zipClient.ExtractAllFromZip(stream, targetDir, true);
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}
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#pragma warning restore CA5351
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}
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/// <summary>
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/// Uninstalls a plugin
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/// </summary>
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/// <param name="plugin">The plugin.</param>
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public void UninstallPlugin(IPlugin plugin)
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{
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plugin.OnUninstalling();
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// Remove it the quick way for now
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_applicationHost.RemovePlugin(plugin);
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var path = plugin.AssemblyFilePath;
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bool isDirectory = false;
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// Check if we have a plugin directory we should remove too
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if (Path.GetDirectoryName(plugin.AssemblyFilePath) != _appPaths.PluginsPath)
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{
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path = Path.GetDirectoryName(plugin.AssemblyFilePath);
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isDirectory = true;
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}
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// Make this case-insensitive to account for possible incorrect assembly naming
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var file = _fileSystem.GetFilePaths(Path.GetDirectoryName(path))
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.FirstOrDefault(i => string.Equals(i, path, StringComparison.OrdinalIgnoreCase));
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if (!string.IsNullOrWhiteSpace(file))
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{
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path = file;
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}
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if (isDirectory)
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{
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_logger.LogInformation("Deleting plugin directory {0}", path);
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Directory.Delete(path, true);
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}
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else
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{
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_logger.LogInformation("Deleting plugin file {0}", path);
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_fileSystem.DeleteFile(path);
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}
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var list = _config.Configuration.UninstalledPlugins.ToList();
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var filename = Path.GetFileName(path);
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if (!list.Contains(filename, StringComparer.OrdinalIgnoreCase))
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{
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list.Add(filename);
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_config.Configuration.UninstalledPlugins = list.ToArray();
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_config.SaveConfiguration();
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}
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PluginUninstalled?.Invoke(this, new GenericEventArgs<IPlugin> { Argument = plugin });
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_applicationHost.NotifyPendingRestart();
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}
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/// <inheritdoc/>
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public bool CancelInstallation(Guid id)
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{
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lock (_currentInstallationsLock)
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{
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var install = _currentInstallations.Find(x => x.info.Id == id);
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if (install == default((InstallationInfo, CancellationTokenSource)))
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{
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return false;
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}
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install.token.Cancel();
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_currentInstallations.Remove(install);
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return true;
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}
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}
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/// <inheritdoc />
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public void Dispose()
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{
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Dispose(true);
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GC.SuppressFinalize(this);
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}
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/// <summary>
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/// Releases unmanaged and - optionally - managed resources.
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/// </summary>
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/// <param name="dispose"><c>true</c> to release both managed and unmanaged resources; <c>false</c> to release only unmanaged resources.</param>
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protected virtual void Dispose(bool dispose)
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{
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if (dispose)
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{
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lock (_currentInstallationsLock)
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{
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foreach (var tuple in _currentInstallations)
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{
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tuple.token.Dispose();
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}
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_currentInstallations.Clear();
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}
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}
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}
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}
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}
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