69 lines
3.3 KiB
C#
69 lines
3.3 KiB
C#
// Copyright (C) 2025, 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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#nullable enable
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using System.Linq;
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using System.Threading.Tasks;
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using Duplicati.Library.Interface;
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namespace Duplicati.Library.Main.Operation;
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/// <summary>
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/// Handler for listing folder contents
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/// </summary>
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internal static class ListFolderHandler
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{
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/// <summary>
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/// Lists the contents of a folder in a backup fileset
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/// </summary>
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/// <param name="options">The options to use</param>
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/// <param name="result">The result class</param>
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/// <param name="folders">The folders to list</param>
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/// <param name="offset">The offset to start listing from</param>
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/// <param name="limit">The maximum number of entries to list</param>
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/// <returns>A task representing the asynchronous operation</returns>
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public static Task RunAsync(Options options, ListFolderResults result, string[] folders, long offset, long limit)
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{
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if (!System.IO.File.Exists(options.Dbpath) || options.NoLocalDb)
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throw new UserInformationException("No local database found, this operation requires a local database", "NoLocalDatabase");
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using var db = new Database.LocalListDatabase(options.Dbpath, options.SqlitePageCache);
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var filesetIds = db.GetFilesetIDs(options.Time, options.Version, singleTimeMatch: true).ToArray();
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if (filesetIds.Length == 0)
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throw new UserInformationException("No filesets found", "NoFilesetsFound");
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if (filesetIds.Length > 1)
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throw new UserInformationException("Multiple filesets found, please specify a single version or time", "MultipleFilesetsFound");
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if (folders == null || folders.Length == 0 || folders[0] == "")
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{
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if (folders != null && folders.Length > 1)
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throw new UserInformationException("When no folder is specified, only one folder can be listed", "MultipleFoldersFound");
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result.Entries = db.ListFilesetEntries(db.GetRootPrefixes(filesetIds[0]), filesetIds[0], offset, limit);
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}
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else
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{
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result.Entries = db.ListFolder(db.GetPrefixIds(folders), filesetIds[0], offset, limit);
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}
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return Task.CompletedTask;
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}
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}
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