Kenneth Skovhede
4d569c51e4
This PR adds a flag to the test method so we can choose to test for read-only access (needed for restore) or read-write (needed for backups). Additionally, this PR fixes a logic bug in that the BackendSourceProvider would not actually test the connection, but just check the placeholder element returned (which is always returned). With this PR the backend's ListAsync command is tested fully. Also renamed the methods on ISourceProvider to have the `...Async` prefix. This replaces #6939
107 lines
3.9 KiB
C#
107 lines
3.9 KiB
C#
// Copyright (C) 2026, The Duplicati Team
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// https://duplicati.com, hello@duplicati.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using Duplicati.Library.Interface;
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namespace Duplicati.Library.SourceProvider;
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/// <summary>
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/// A source provider that wraps a backend
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/// </summary>
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/// <param name="backend">The backend to wrap</param>
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/// <param name="mountedPath">The path to mount the backend</param>
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public class BackendSourceProvider(IFolderEnabledBackend backend, string mountedPath) : ISourceProvider, ISourceProviderModule
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{
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/// <summary>
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/// The wrapped backend
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/// </summary>
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public IFolderEnabledBackend WrappedBackend => backend;
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/// <summary>
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/// The path where the provider is logically mounted
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/// </summary>
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public string MountedPath => mountedPath;
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/// <inheritdoc/>
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public string Key => backend.ProtocolKey;
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/// <inheritdoc/>
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public string DisplayName => backend.DisplayName;
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/// <inheritdoc/>
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public string Description => backend.Description;
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/// <inheritdoc/>
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public IList<ICommandLineArgument> SupportedCommands => backend.SupportedCommands;
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/// <summary>
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/// The prepared root entry, if any
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/// </summary>
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private BackendSourceFileEntry? preparedRoot;
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/// <summary>
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/// Flags if the provider has been initialized
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/// </summary>
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private int isInitialized = 0;
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/// <summary>
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/// Creates a root entry
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/// </summary>
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/// <returns>The root entry</returns>
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private BackendSourceFileEntry CreateRoot()
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=> new BackendSourceFileEntry(this, "", true, true, new DateTime(0), new DateTime(0), 0);
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/// <inheritdoc/>
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public async Task InitializeAsync(CancellationToken cancellationToken)
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{
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// Only allow a single intiiialization call
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if (Interlocked.Exchange(ref isInitialized, 1) != 0)
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return;
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// Prepare the root entry
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var root = CreateRoot();
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await root.PrepareEnumerator(cancellationToken).ConfigureAwait(false);
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preparedRoot = root;
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}
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/// <inheritdoc/>
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public Task TestAsync(CancellationToken cancellationToken)
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=> backend.TestAsync(false, cancellationToken);
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/// <inheritdoc/>
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public IAsyncEnumerable<ISourceProviderEntry> EnumerateAsync(CancellationToken cancellationToken)
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=> new[] { Interlocked.Exchange(ref preparedRoot, null) ?? CreateRoot() }.ToAsyncEnumerable();
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/// <inheritdoc/>
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public async Task<ISourceProviderEntry?> GetEntryAsync(string path, bool isFolder, CancellationToken cancellationToken)
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{
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var entry = await backend.GetEntryAsync(BackendSourceFileEntry.NormalizePathTo(path, '/'), cancellationToken).ConfigureAwait(false);
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return entry == null ? null : BackendSourceFileEntry.FromFileEntry(this, path, entry);
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}
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/// <inheritdoc/>
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public void Dispose()
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{
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WrappedBackend.Dispose();
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GC.SuppressFinalize(this);
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}
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}
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