diff options
Diffstat (limited to 'Emby.Server.Implementations/Plugins/PluginManager.cs')
| -rw-r--r-- | Emby.Server.Implementations/Plugins/PluginManager.cs | 119 |
1 files changed, 87 insertions, 32 deletions
diff --git a/Emby.Server.Implementations/Plugins/PluginManager.cs b/Emby.Server.Implementations/Plugins/PluginManager.cs index f699c99d85..f7ad9b9498 100644 --- a/Emby.Server.Implementations/Plugins/PluginManager.cs +++ b/Emby.Server.Implementations/Plugins/PluginManager.cs @@ -255,6 +255,14 @@ namespace Emby.Server.Implementations.Plugins } _plugins.Add(plugin); + + // Updating a disabled plugin must not enable it again. + if (plugin.Manifest.Status == PluginStatus.Disabled) + { + ProcessAlternative(plugin); + return; + } + EnablePlugin(plugin); } @@ -387,29 +395,11 @@ namespace Emby.Server.Implementations.Plugins var url = new Uri(packageInfo.ImageUrl); imagePath = Path.Join(path, url.Segments[^1]); - var fileStream = AsyncFile.OpenWrite(imagePath); - Stream? downloadStream = null; - try - { - downloadStream = await HttpClientFactory - .CreateClient(NamedClient.Default) - .GetStreamAsync(url) - .ConfigureAwait(false); - - await downloadStream.CopyToAsync(fileStream).ConfigureAwait(false); - } - catch (HttpRequestException ex) + // The catalog is refreshed on every dashboard visit and rewrites the manifest of + // every installed plugin, so only fetch an image that is actually missing. + if (!ImageExists(imagePath)) { - _logger.LogError(ex, "Failed to download image to path {Path} on disk.", imagePath); - imagePath = string.Empty; - } - finally - { - await fileStream.DisposeAsync().ConfigureAwait(false); - if (downloadStream is not null) - { - await downloadStream.DisposeAsync().ConfigureAwait(false); - } + imagePath = await DownloadImage(url, imagePath).ConfigureAwait(false); } } @@ -448,6 +438,67 @@ namespace Emby.Server.Implementations.Plugins } } + private static bool ImageExists(string imagePath) + { + var image = new FileInfo(imagePath); + + // A previous download may have been interrupted, leaving an empty file behind. + return image.Exists && image.Length > 0; + } + + private async Task<string> DownloadImage(Uri url, string imagePath) + { + // Download to a temporary file and move it into place, so that neither a failed download + // nor a concurrent one can be observed as a partially written image. + var tempPath = imagePath + "." + Path.GetRandomFileName(); + + try + { + var fileStream = AsyncFile.Create(tempPath); + Stream? downloadStream = null; + try + { + downloadStream = await HttpClientFactory + .CreateClient(NamedClient.Default) + .GetStreamAsync(url) + .ConfigureAwait(false); + + await downloadStream.CopyToAsync(fileStream).ConfigureAwait(false); + } + finally + { + await fileStream.DisposeAsync().ConfigureAwait(false); + if (downloadStream is not null) + { + await downloadStream.DisposeAsync().ConfigureAwait(false); + } + } + + File.Move(tempPath, imagePath, true); + + return imagePath; + } + catch (Exception ex) when (ex is HttpRequestException or IOException or UnauthorizedAccessException) + { + _logger.LogError(ex, "Failed to download image to path {Path} on disk.", imagePath); + TryDeleteFile(tempPath); + + return string.Empty; + } + } + + private void TryDeleteFile(string path) + { + try + { + File.Delete(path); + } + catch (Exception ex) when (ex is IOException or UnauthorizedAccessException) + { + _logger.LogWarning(ex, "Unable to delete {Path}.", path); + } + } + /// <summary> /// Reconciles the manifest against any properties that exist locally in a pre-packaged meta.json found at the path. /// If no file is found, no reconciliation occurs. @@ -632,9 +683,10 @@ namespace Emby.Server.Implementations.Plugins return; } - var predecessor = _plugins.OrderByDescending(p => p.Version) - .FirstOrDefault(p => p.Id.Equals(plugin.Id) && p.IsEnabledAndSupported && p.Version != plugin.Version); - if (predecessor is not null) + var successor = _plugins.FirstOrDefault(p => p.Id.Equals(plugin.Id) + && p.Version > plugin.Version + && (p.IsEnabledAndSupported || p.Manifest.Status == PluginStatus.Disabled)); + if (successor is not null) { return; } @@ -763,6 +815,8 @@ namespace Emby.Server.Implementations.Plugins var entry = versions[x]; if (!string.Equals(lastName, entry.Name, StringComparison.OrdinalIgnoreCase)) { + lastName = string.Empty; + if (!TryGetPluginDlls(entry, out var allowedDlls)) { _logger.LogError("One or more assembly paths was invalid. Marking plugin {Plugin} as \"Malfunctioned\".", entry.Name); @@ -772,15 +826,18 @@ namespace Emby.Server.Implementations.Plugins entry.DllFiles = allowedDlls; + // Only clean up older versions when this version will actually be loaded. if (entry.IsEnabledAndSupported) { lastName = entry.Name; - continue; } + + continue; } if (string.IsNullOrEmpty(lastName)) { + // Unnamed plugin, so there is nothing to match older versions against. continue; } @@ -891,9 +948,9 @@ namespace Emby.Server.Implementations.Plugins if (previousVersion is null) { - // This value is memory only - so that the web will show restart required. - plugin.Manifest.Status = PluginStatus.Restart; - plugin.Manifest.AutoUpdate = false; + // Memory only, so that the web will show restart required. The manifest must keep + // holding the persisted state, or a later save would write the wrong state to disk. + plugin.RestartRequired = true; return; } @@ -906,9 +963,7 @@ namespace Emby.Server.Implementations.Plugins _logger.LogError("Unable to supercede version {Version} of {Name}", previousVersion.Version, previousVersion.Name); } - // This value is memory only - so that the web will show restart required. - plugin.Manifest.Status = PluginStatus.Restart; - plugin.Manifest.AutoUpdate = false; + plugin.RestartRequired = true; } } } |