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			580 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			580 lines
		
	
	
		
			23 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.IO;
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using System.IO.Compression;
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using System.Linq;
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using System.Net.Http;
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using System.Net.Http.Json;
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using System.Security.Cryptography;
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using System.Text.Json;
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using System.Threading;
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using System.Threading.Tasks;
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using Jellyfin.Data.Events;
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using Jellyfin.Extensions.Json;
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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;
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using MediaBrowser.Controller.Configuration;
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using MediaBrowser.Controller.Events;
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using MediaBrowser.Controller.Events.Updates;
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using MediaBrowser.Model.Plugins;
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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 for the system and individual plugins.
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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<InstallationManager> _logger;
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        private readonly IApplicationPaths _appPaths;
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        private readonly IEventManager _eventManager;
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        private readonly IHttpClientFactory _httpClientFactory;
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        private readonly IServerConfigurationManager _config;
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        private readonly JsonSerializerOptions _jsonSerializerOptions;
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        private readonly IPluginManager _pluginManager;
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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 IServerApplicationHost _applicationHost;
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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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        /// <summary>
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        /// Initializes a new instance of the <see cref="InstallationManager"/> class.
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        /// </summary>
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        /// <param name="logger">The <see cref="ILogger{InstallationManager}"/>.</param>
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        /// <param name="appHost">The <see cref="IServerApplicationHost"/>.</param>
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        /// <param name="appPaths">The <see cref="IApplicationPaths"/>.</param>
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        /// <param name="eventManager">The <see cref="IEventManager"/>.</param>
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        /// <param name="httpClientFactory">The <see cref="IHttpClientFactory"/>.</param>
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        /// <param name="config">The <see cref="IServerConfigurationManager"/>.</param>
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        /// <param name="pluginManager">The <see cref="IPluginManager"/>.</param>
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        public InstallationManager(
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            ILogger<InstallationManager> logger,
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            IServerApplicationHost appHost,
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            IApplicationPaths appPaths,
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            IEventManager eventManager,
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            IHttpClientFactory httpClientFactory,
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            IServerConfigurationManager config,
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            IPluginManager pluginManager)
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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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            _eventManager = eventManager;
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            _httpClientFactory = httpClientFactory;
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            _config = config;
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            _jsonSerializerOptions = JsonDefaults.Options;
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            _pluginManager = pluginManager;
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        }
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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<PackageInfo[]> GetPackages(string manifestName, string manifest, bool filterIncompatible, CancellationToken cancellationToken = default)
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        {
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            try
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            {
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                PackageInfo[]? packages = await _httpClientFactory.CreateClient(NamedClient.Default)
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                        .GetFromJsonAsync<PackageInfo[]>(new Uri(manifest), _jsonSerializerOptions, cancellationToken).ConfigureAwait(false);
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                if (packages is null)
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                {
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                    return Array.Empty<PackageInfo>();
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                }
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                var minimumVersion = new Version(0, 0, 0, 1);
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                // Store the repository and repository url with each version, as they may be spread apart.
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                foreach (var entry in packages)
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                {
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                    for (int a = entry.Versions.Count - 1; a >= 0; a--)
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                    {
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                        var ver = entry.Versions[a];
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                        ver.RepositoryName = manifestName;
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                        ver.RepositoryUrl = manifest;
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                        if (!filterIncompatible)
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                        {
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                            continue;
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                        }
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                        if (!Version.TryParse(ver.TargetAbi, out var targetAbi))
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                        {
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                            targetAbi = minimumVersion;
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                        }
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                        // Only show plugins that are greater than or equal to targetAbi.
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                        if (_applicationHost.ApplicationVersion >= targetAbi)
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                        {
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                            continue;
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                        }
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                        // Not compatible with this version so remove it.
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                        entry.Versions.Remove(ver);
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                    }
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                }
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                return packages;
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            }
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            catch (IOException ex)
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            {
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                _logger.LogError(ex, "Cannot locate the plugin manifest {Manifest}", manifest);
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                return Array.Empty<PackageInfo>();
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            }
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            catch (JsonException ex)
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            {
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                _logger.LogError(ex, "Failed to deserialize the plugin manifest retrieved from {Manifest}", manifest);
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                return Array.Empty<PackageInfo>();
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            }
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            catch (UriFormatException ex)
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            {
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                _logger.LogError(ex, "The URL configured for the plugin repository manifest URL is not valid: {Manifest}", manifest);
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                return Array.Empty<PackageInfo>();
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            }
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            catch (HttpRequestException ex)
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            {
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                _logger.LogError(ex, "An error occurred while accessing the plugin manifest: {Manifest}", manifest);
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                return Array.Empty<PackageInfo>();
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            }
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        }
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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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            var result = new List<PackageInfo>();
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            foreach (RepositoryInfo repository in _config.Configuration.PluginRepositories)
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            {
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                if (repository.Enabled && repository.Url is not null)
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                {
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                    // Where repositories have the same content, the details from the first is taken.
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                    foreach (var package in await GetPackages(repository.Name ?? "Unnamed Repo", repository.Url, true, cancellationToken).ConfigureAwait(true))
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                    {
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                        var existing = FilterPackages(result, package.Name, package.Id).FirstOrDefault();
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                        // Remove invalid versions from the valid package.
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                        for (var i = package.Versions.Count - 1; i >= 0; i--)
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                        {
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                            var version = package.Versions[i];
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                            var plugin = _pluginManager.GetPlugin(package.Id, version.VersionNumber);
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                            if (plugin is not null)
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                            {
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                                await _pluginManager.PopulateManifest(package, version.VersionNumber, plugin.Path, plugin.Manifest.Status).ConfigureAwait(false);
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                            }
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                            // Remove versions with a target ABI greater then the current application version.
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                            if (Version.TryParse(version.TargetAbi, out var targetAbi) && _applicationHost.ApplicationVersion < targetAbi)
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                            {
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                                package.Versions.RemoveAt(i);
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                            }
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                        }
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                        // Don't add a package that doesn't have any compatible versions.
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                        if (package.Versions.Count == 0)
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                        {
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                            continue;
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                        }
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                        if (existing is not null)
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                        {
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                            // Assumption is both lists are ordered, so slot these into the correct place.
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                            MergeSortedList(existing.Versions, package.Versions);
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                        }
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                        else
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                        {
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                            result.Add(package);
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                        }
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                    }
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                }
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            }
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            return result;
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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 id = default,
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            Version? specificVersion = null)
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        {
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            if (name is not 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 (!id.Equals(default))
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            {
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                availablePackages = availablePackages.Where(x => x.Id.Equals(id));
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            }
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            if (specificVersion is not null)
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            {
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                availablePackages = availablePackages.Where(x => x.Versions.Any(y => y.VersionNumber.Equals(specificVersion)));
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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<InstallationInfo> GetCompatibleVersions(
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            IEnumerable<PackageInfo> availablePackages,
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            string? name = null,
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            Guid id = default,
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            Version? minVersion = null,
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            Version? specificVersion = null)
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        {
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            var package = FilterPackages(availablePackages, name, id, specificVersion).FirstOrDefault();
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            // Package not found in repository
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            if (package is null)
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            {
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                yield break;
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            }
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            var appVer = _applicationHost.ApplicationVersion;
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            var availableVersions = package.Versions
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                .Where(x => string.IsNullOrEmpty(x.TargetAbi) || Version.Parse(x.TargetAbi) <= appVer);
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            if (specificVersion is not null)
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            {
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                availableVersions = availableVersions.Where(x => x.VersionNumber.Equals(specificVersion));
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            }
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            else if (minVersion is not null)
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            {
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                availableVersions = availableVersions.Where(x => x.VersionNumber >= minVersion);
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            }
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            foreach (var v in availableVersions.OrderByDescending(x => x.VersionNumber))
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            {
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                yield return new InstallationInfo
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                {
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                    Changelog = v.Changelog,
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                    Id = package.Id,
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                    Name = package.Name,
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                    Version = v.VersionNumber,
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                    SourceUrl = v.SourceUrl,
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                    Checksum = v.Checksum,
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                    PackageInfo = package
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                };
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            }
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        }
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        /// <inheritdoc />
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        public async Task<IEnumerable<InstallationInfo>> GetAvailablePluginUpdates(CancellationToken cancellationToken = default)
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        {
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            var catalog = await GetAvailablePackages(cancellationToken).ConfigureAwait(false);
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            return GetAvailablePluginUpdates(catalog);
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        }
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        /// <inheritdoc />
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        public async Task InstallPackage(InstallationInfo package, CancellationToken cancellationToken)
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        {
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            ArgumentNullException.ThrowIfNull(package);
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            var innerCancellationTokenSource = new CancellationTokenSource();
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            var tuple = (package, 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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            using var linkedTokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken, innerCancellationTokenSource.Token);
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            var linkedToken = linkedTokenSource.Token;
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            await _eventManager.PublishAsync(new PluginInstallingEventArgs(package)).ConfigureAwait(false);
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            try
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            {
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                var isUpdate = 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(package);
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                if (isUpdate)
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                {
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                    await _eventManager.PublishAsync(new PluginUpdatedEventArgs(package)).ConfigureAwait(false);
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                }
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                else
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                {
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                    await _eventManager.PublishAsync(new PluginInstalledEventArgs(package)).ConfigureAwait(false);
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                }
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                _applicationHost.NotifyPendingRestart();
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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.Version);
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                await _eventManager.PublishAsync(new PluginInstallationCancelledEventArgs(package)).ConfigureAwait(false);
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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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                await _eventManager.PublishAsync(new InstallationFailedEventArgs
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                {
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                    InstallationInfo = package,
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                    Exception = ex
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                }).ConfigureAwait(false);
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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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        /// Uninstalls a plugin.
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        /// </summary>
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        /// <param name="plugin">The <see cref="LocalPlugin"/> to uninstall.</param>
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        public void UninstallPlugin(LocalPlugin plugin)
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        {
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            if (plugin is null)
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            {
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                return;
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            }
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            if (plugin.Instance?.CanUninstall == false)
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            {
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                _logger.LogWarning("Attempt to delete non removable plugin {PluginName}, ignoring request", plugin.Name);
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                return;
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            }
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            plugin.Instance?.OnUninstalling();
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            // Remove it the quick way for now
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            _pluginManager.RemovePlugin(plugin);
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            _eventManager.Publish(new PluginUninstalledEventArgs(plugin.GetPluginInfo()));
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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.Equals(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 or <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 (info, token) in _currentInstallations)
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                    {
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                        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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        /// <summary>
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        /// Merges two sorted lists.
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        /// </summary>
 | 
						|
        /// <param name="source">The source <see cref="IList{VersionInfo}"/> instance to merge.</param>
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						|
        /// <param name="dest">The destination <see cref="IList{VersionInfo}"/> instance to merge with.</param>
 | 
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        private static void MergeSortedList(IList<VersionInfo> source, IList<VersionInfo> dest)
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        {
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            int sLength = source.Count - 1;
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            int dLength = dest.Count;
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            int s = 0, d = 0;
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            var sourceVersion = source[0].VersionNumber;
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            var destVersion = dest[0].VersionNumber;
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						|
            while (d < dLength)
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						|
            {
 | 
						|
                if (sourceVersion.CompareTo(destVersion) >= 0)
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						|
                {
 | 
						|
                    if (s < sLength)
 | 
						|
                    {
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                        sourceVersion = source[++s].VersionNumber;
 | 
						|
                    }
 | 
						|
                    else
 | 
						|
                    {
 | 
						|
                        // Append all of destination to the end of source.
 | 
						|
                        while (d < dLength)
 | 
						|
                        {
 | 
						|
                            source.Add(dest[d++]);
 | 
						|
                        }
 | 
						|
 | 
						|
                        break;
 | 
						|
                    }
 | 
						|
                }
 | 
						|
                else
 | 
						|
                {
 | 
						|
                    source.Insert(s++, dest[d++]);
 | 
						|
                    if (d >= dLength)
 | 
						|
                    {
 | 
						|
                        break;
 | 
						|
                    }
 | 
						|
 | 
						|
                    sLength++;
 | 
						|
                    destVersion = dest[d].VersionNumber;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        private IEnumerable<InstallationInfo> GetAvailablePluginUpdates(IReadOnlyList<PackageInfo> pluginCatalog)
 | 
						|
        {
 | 
						|
            var plugins = _pluginManager.Plugins;
 | 
						|
            foreach (var plugin in plugins)
 | 
						|
            {
 | 
						|
                // Don't auto update when plugin marked not to, or when it's disabled.
 | 
						|
                if (plugin.Manifest?.AutoUpdate == false || plugin.Manifest?.Status == PluginStatus.Disabled)
 | 
						|
                {
 | 
						|
                    continue;
 | 
						|
                }
 | 
						|
 | 
						|
                var compatibleVersions = GetCompatibleVersions(pluginCatalog, plugin.Name, plugin.Id, minVersion: plugin.Version);
 | 
						|
                var version = compatibleVersions.FirstOrDefault(y => y.Version > plugin.Version);
 | 
						|
 | 
						|
                if (version is not null && CompletedInstallations.All(x => !x.Id.Equals(version.Id)))
 | 
						|
                {
 | 
						|
                    yield return version;
 | 
						|
                }
 | 
						|
            }
 | 
						|
        }
 | 
						|
 | 
						|
        private async Task PerformPackageInstallation(InstallationInfo package, PluginStatus status, CancellationToken cancellationToken)
 | 
						|
        {
 | 
						|
            if (!Path.GetExtension(package.SourceUrl.AsSpan()).Equals(".zip", StringComparison.OrdinalIgnoreCase))
 | 
						|
            {
 | 
						|
                _logger.LogError("Only zip packages are supported. {SourceUrl} is not a zip archive.", package.SourceUrl);
 | 
						|
                return;
 | 
						|
            }
 | 
						|
 | 
						|
            // Always override the passed-in target (which is a file) and figure it out again
 | 
						|
            string targetDir = Path.Combine(_appPaths.PluginsPath, package.Name);
 | 
						|
 | 
						|
            using var response = await _httpClientFactory.CreateClient(NamedClient.Default)
 | 
						|
                .GetAsync(new Uri(package.SourceUrl), cancellationToken).ConfigureAwait(false);
 | 
						|
            response.EnsureSuccessStatusCode();
 | 
						|
            await using var stream = await response.Content.ReadAsStreamAsync(cancellationToken).ConfigureAwait(false);
 | 
						|
 | 
						|
            // CA5351: Do Not Use Broken Cryptographic Algorithms
 | 
						|
#pragma warning disable CA5351
 | 
						|
            cancellationToken.ThrowIfCancellationRequested();
 | 
						|
 | 
						|
            var hash = Convert.ToHexString(await MD5.HashDataAsync(stream, cancellationToken).ConfigureAwait(false));
 | 
						|
            if (!string.Equals(package.Checksum, hash, StringComparison.OrdinalIgnoreCase))
 | 
						|
            {
 | 
						|
                _logger.LogError(
 | 
						|
                    "The checksums didn't match while installing {Package}, expected: {Expected}, got: {Received}",
 | 
						|
                    package.Name,
 | 
						|
                    package.Checksum,
 | 
						|
                    hash);
 | 
						|
                throw new InvalidDataException("The checksum of the received data doesn't match.");
 | 
						|
            }
 | 
						|
 | 
						|
            // Version folder as they cannot be overwritten in Windows.
 | 
						|
            targetDir += "_" + package.Version;
 | 
						|
 | 
						|
            if (Directory.Exists(targetDir))
 | 
						|
            {
 | 
						|
                try
 | 
						|
                {
 | 
						|
                    Directory.Delete(targetDir, true);
 | 
						|
                }
 | 
						|
#pragma warning disable CA1031 // Do not catch general exception types
 | 
						|
                catch
 | 
						|
#pragma warning restore CA1031 // Do not catch general exception types
 | 
						|
                {
 | 
						|
                    // Ignore any exceptions.
 | 
						|
                }
 | 
						|
            }
 | 
						|
 | 
						|
            stream.Position = 0;
 | 
						|
            ZipFile.ExtractToDirectory(stream, targetDir, true);
 | 
						|
 | 
						|
            // Ensure we create one or populate existing ones with missing data.
 | 
						|
            await _pluginManager.PopulateManifest(package.PackageInfo, package.Version, targetDir, status).ConfigureAwait(false);
 | 
						|
 | 
						|
            _pluginManager.ImportPluginFrom(targetDir);
 | 
						|
        }
 | 
						|
 | 
						|
        private async Task<bool> InstallPackageInternal(InstallationInfo package, CancellationToken cancellationToken)
 | 
						|
        {
 | 
						|
            LocalPlugin? plugin = _pluginManager.Plugins.FirstOrDefault(p => p.Id.Equals(package.Id) && p.Version.Equals(package.Version))
 | 
						|
                  ?? _pluginManager.Plugins.FirstOrDefault(p => p.Name.Equals(package.Name, StringComparison.OrdinalIgnoreCase) && p.Version.Equals(package.Version));
 | 
						|
 | 
						|
            await PerformPackageInstallation(package, plugin?.Manifest.Status ?? PluginStatus.Active, cancellationToken).ConfigureAwait(false);
 | 
						|
            _logger.LogInformation("Plugin {Action}: {PluginName} {PluginVersion}", plugin is null ? "installed" : "updated", package.Name, package.Version);
 | 
						|
 | 
						|
            return plugin is not null;
 | 
						|
        }
 | 
						|
    }
 | 
						|
}
 |