624 lines
27 KiB
C#
624 lines
27 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;
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using System.Collections.Generic;
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using System.Threading.Tasks;
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using Duplicati.Library.Utility;
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using Microsoft.Data.Sqlite;
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namespace Duplicati.Library.Main.Database
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{
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internal class LocalListChangesDatabase : LocalDatabase
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{
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public static async Task<LocalListChangesDatabase> CreateAsync(string path, long pagecachesize)
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{
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var db = new LocalListChangesDatabase();
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db = (LocalListChangesDatabase)await CreateLocalDatabaseAsync(db, path, "ListChanges", false, pagecachesize);
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db.ShouldCloseConnection = true;
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return db;
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}
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public interface IStorageHelper : IDisposable
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{
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Task AddElement(string path, string filehash, string metahash, long size, Interface.ListChangesElementType type, bool asNew);
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Task AddFromDb(long filesetId, bool asNew, IFilter filter);
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Task<IChangeCountReport> CreateChangeCountReport();
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Task<IChangeSizeReport> CreateChangeSizeReport();
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IAsyncEnumerable<Tuple<Interface.ListChangesChangeType, Interface.ListChangesElementType, string>> CreateChangedFileReport();
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}
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public interface IChangeCountReport
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{
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long AddedFolders { get; }
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long AddedSymlinks { get; }
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long AddedFiles { get; }
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long DeletedFolders { get; }
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long DeletedSymlinks { get; }
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long DeletedFiles { get; }
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long ModifiedFolders { get; }
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long ModifiedSymlinks { get; }
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long ModifiedFiles { get; }
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}
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public interface IChangeSizeReport
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{
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long AddedSize { get; }
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long DeletedSize { get; }
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long PreviousSize { get; }
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long CurrentSize { get; }
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}
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internal class ChangeCountReport : IChangeCountReport
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{
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public long AddedFolders { get; internal set; }
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public long AddedSymlinks { get; internal set; }
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public long AddedFiles { get; internal set; }
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public long DeletedFolders { get; internal set; }
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public long DeletedSymlinks { get; internal set; }
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public long DeletedFiles { get; internal set; }
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public long ModifiedFolders { get; internal set; }
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public long ModifiedSymlinks { get; internal set; }
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public long ModifiedFiles { get; internal set; }
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}
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internal class ChangeSizeReport : IChangeSizeReport
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{
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public long AddedSize { get; internal set; }
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public long DeletedSize { get; internal set; }
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public long PreviousSize { get; internal set; }
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public long CurrentSize { get; internal set; }
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}
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private class StorageHelper : IStorageHelper
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{
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private LocalDatabase m_db = null!;
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private SqliteCommand m_insertPreviousElementCommand = null!;
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private SqliteCommand m_insertCurrentElementCommand = null!;
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private string m_previousTable = null!;
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private string m_currentTable = null!;
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[Obsolete("Calling this constructor will throw an exception. Use CreateAsync instead.")]
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public StorageHelper(SqliteConnection con)
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{
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}
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private StorageHelper() { }
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public static async Task<StorageHelper> CreateAsync(LocalDatabase db)
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{
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var sh = new StorageHelper
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{
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m_db = db,
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m_previousTable = "Previous-" + Library.Utility.Utility.ByteArrayAsHexString(Guid.NewGuid().ToByteArray()),
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m_currentTable = "Current-" + Library.Utility.Utility.ByteArrayAsHexString(Guid.NewGuid().ToByteArray())
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};
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using (var cmd = sh.m_db.Connection.CreateCommand(db.Transaction))
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{
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await cmd.ExecuteNonQueryAsync($@"
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CREATE TEMPORARY TABLE ""{sh.m_previousTable}"" (
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""Path"" TEXT NOT NULL,
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""FileHash"" TEXT NULL,
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""MetaHash"" TEXT NOT NULL,
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""Size"" INTEGER NOT NULL,
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""Type"" INTEGER NOT NULL
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)
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");
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await cmd.ExecuteNonQueryAsync($@"
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CREATE TEMPORARY TABLE ""{sh.m_currentTable}"" (
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""Path"" TEXT NOT NULL,
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""FileHash"" TEXT NULL,
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""MetaHash"" TEXT NOT NULL,
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""Size"" INTEGER NOT NULL,
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""Type"" INTEGER NOT NULL
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)
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");
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}
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sh.m_insertPreviousElementCommand = await sh.m_db.Connection.CreateCommandAsync($@"
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INSERT INTO ""{sh.m_previousTable}"" (
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""Path"",
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""FileHash"",
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""MetaHash"",
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""Size"",
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""Type""
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)
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VALUES (
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@Path,
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@FileHash,
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@MetaHash,
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@Size,
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@Type
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)
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");
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sh.m_insertCurrentElementCommand = await sh.m_db.Connection.CreateCommandAsync($@"
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INSERT INTO ""{sh.m_currentTable}"" (
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""Path"",
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""FileHash"",
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""MetaHash"",
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""Size"",
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""Type""
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)
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VALUES (
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@Path,
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@FileHash,
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@MetaHash,
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@Size,
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@Type
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)
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");
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return sh;
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}
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public async Task AddFromDb(long filesetId, bool asNew, IFilter filter)
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{
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var tablename = asNew ? m_currentTable : m_previousTable;
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var folders = $@"
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SELECT
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""File"".""Path"" AS ""Path"",
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NULL AS ""FileHash"",
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""Blockset"".""Fullhash"" AS ""MetaHash"",
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-1 AS ""Size"",
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{(int)Interface.ListChangesElementType.Folder} AS ""Type"",
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""FilesetEntry"".""FilesetID"" AS ""FilesetID""
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FROM
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""File"",
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""FilesetEntry"",
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""Metadataset"",
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""Blockset""
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WHERE
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""File"".""ID"" = ""FilesetEntry"".""FileID""
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AND ""File"".""BlocksetID"" = -100
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AND ""Metadataset"".""ID""=""File"".""MetadataID""
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AND ""Metadataset"".""BlocksetID"" = ""Blockset"".""ID""
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";
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var symlinks = $@"
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SELECT
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""File"".""Path"" AS ""Path"",
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NULL AS ""FileHash"",
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""Blockset"".""Fullhash"" AS ""MetaHash"",
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-1 AS ""Size"",
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{(int)Interface.ListChangesElementType.Symlink} AS ""Type"",
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""FilesetEntry"".""FilesetID"" AS ""FilesetID""
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FROM
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""File"",
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""FilesetEntry"",
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""Metadataset"",
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""Blockset""
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WHERE
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""File"".""ID"" = ""FilesetEntry"".""FileID""
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AND ""File"".""BlocksetID"" = -200
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AND ""Metadataset"".""ID""=""File"".""MetadataID""
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AND ""Metadataset"".""BlocksetID"" = ""Blockset"".""ID""
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";
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var files = $@"
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SELECT
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""File"".""Path"" AS ""Path"",
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""FB"".""FullHash"" AS ""FileHash"",
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""MB"".""Fullhash"" AS ""MetaHash"",
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""FB"".""Length"" AS ""Size"",
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{(int)Interface.ListChangesElementType.File} AS ""Type"",
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""FilesetEntry"".""FilesetID"" AS ""FilesetID""
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FROM
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""File"",
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""FilesetEntry"",
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""Metadataset"",
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""Blockset"" MB,
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""Blockset"" FB
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WHERE
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""File"".""ID"" = ""FilesetEntry"".""FileID""
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AND ""File"".""BlocksetID"" >= 0
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AND ""Metadataset"".""ID""=""File"".""MetadataID""
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AND ""Metadataset"".""BlocksetID"" = ""MB"".""ID""
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AND ""File"".""BlocksetID"" = ""FB"".""ID"" ";
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var combined = $"({folders} UNION {symlinks} UNION {files})";
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using (var cmd = m_db.Connection.CreateCommand(m_db.Transaction))
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{
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if (filter == null || filter.Empty)
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{
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// Simple case, select everything
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await cmd.SetCommandAndParameters($@"
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INSERT INTO ""{tablename}"" (
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""Path"",
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""FileHash"",
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""MetaHash"",
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""Size"",
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""Type""
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)
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SELECT
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""Path"",
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""FileHash"",
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""MetaHash"",
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""Size"",
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""Type""
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FROM {combined} A
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WHERE ""A"".""FilesetID"" = @FilesetId
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")
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.SetParameterValue("@FilesetId", filesetId)
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.ExecuteNonQueryAsync();
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}
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else if (Library.Utility.Utility.IsFSCaseSensitive && filter is FilterExpression expression && expression.Type == Duplicati.Library.Utility.FilterType.Simple)
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{
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// File list based
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// unfortunately we cannot do this if the filesystem is case sensitive as
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// SQLite only supports ASCII compares
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var p = expression.GetSimpleList();
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var filenamestable = "Filenames-" + Library.Utility.Utility.ByteArrayAsHexString(Guid.NewGuid().ToByteArray());
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await cmd.ExecuteNonQueryAsync($@"
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CREATE TEMPORARY TABLE ""{filenamestable}"" (
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""Path"" TEXT NOT NULL
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)
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");
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await cmd.SetCommandAndParameters($@"
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INSERT INTO ""{filenamestable}"" (""Path"")
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VALUES (@Path)
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")
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.PrepareAsync();
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foreach (var s in p)
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await cmd.SetParameterValue("@Path", s)
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.ExecuteNonQueryAsync();
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string whereClause;
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if (expression.Result)
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{
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// Include filter
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whereClause = $@"
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""A"".""FilesetID"" = @FilesetId
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AND ""A"".""Path"" IN (
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SELECT DISTINCT ""Path""
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FROM ""{filenamestable}""
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)
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";
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}
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else
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{
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// Exclude filter
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whereClause = $@"
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""A"".""FilesetID"" = @FilesetId
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AND ""A"".""Path"" NOT IN (
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SELECT DISTINCT ""Path""
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FROM ""{filenamestable}""
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)
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";
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}
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await cmd.SetCommandAndParameters($@"
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INSERT INTO ""{tablename}"" (
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""Path"",
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""FileHash"",
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""MetaHash"",
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""Size"",
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""Type""
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)
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SELECT
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""Path"",
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""FileHash"",
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""MetaHash"",
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""Size"",
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""Type""
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FROM {combined} A
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WHERE {whereClause}
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")
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.SetParameterValue("@FilesetId", filesetId)
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.ExecuteNonQueryAsync();
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await cmd.ExecuteNonQueryAsync($@"DROP TABLE IF EXISTS ""{filenamestable}"" ");
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}
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else
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{
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// Do row-wise iteration
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var values = new object[5];
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await cmd.SetCommandAndParameters($@"
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SELECT
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""A"".""Path"",
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""A"".""FileHash"",
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""A"".""MetaHash"",
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""A"".""Size"",
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""A"".""Type""
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FROM {combined} A
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WHERE ""A"".""FilesetID"" = @FilesetId
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")
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.SetParameterValue("@FilesetId", filesetId)
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.PrepareAsync();
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using var cmd2 = m_db.Connection.CreateCommand(m_db.Transaction)
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.SetCommandAndParameters($@"
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INSERT INTO ""{tablename}"" (
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""Path"",
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""FileHash"",
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""MetaHash"",
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""Size"",
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""Type""
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)
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VALUES (
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@Path,
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@FileHash,
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@MetaHash,
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@Size,
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@Type
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)
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");
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await cmd2.PrepareAsync();
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using var rd = await cmd.ExecuteReaderAsync();
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while (await rd.ReadAsync())
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{
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rd.GetValues(values);
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if (values[0] != null && values[0] != DBNull.Value && FilterExpression.Matches(filter, values[0].ToString()))
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{
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await cmd2
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.SetParameterValue("@Path", values[0])
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.SetParameterValue("@FileHash", values[1])
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.SetParameterValue("@MetaHash", values[2])
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.SetParameterValue("@Size", values[3])
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.SetParameterValue("@Type", values[4])
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.ExecuteNonQueryAsync();
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}
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}
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}
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}
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}
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public async Task AddElement(string path, string filehash, string metahash, long size, Interface.ListChangesElementType type, bool asNew)
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{
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var cmd = asNew ? m_insertCurrentElementCommand : m_insertPreviousElementCommand;
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await cmd
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.SetParameterValue("@Path", path)
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.SetParameterValue("@FileHash", filehash)
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.SetParameterValue("@MetaHash", metahash)
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.SetParameterValue("@Size", size)
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.SetParameterValue("@Type", (int)type)
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.ExecuteNonQueryAsync();
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}
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private static async IAsyncEnumerable<string?> ReaderToStringList(SqliteDataReader rd)
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{
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using (rd)
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while (await rd.ReadAsync())
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{
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var v = rd.GetValue(0);
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if (v == null || v == DBNull.Value)
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yield return null;
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else
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yield return v.ToString();
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}
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}
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private (string Added, string Deleted, string Modified) GetSqls(bool allTypes)
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{
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return (
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$@"
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SELECT ""Path""
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FROM ""{m_currentTable}""
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WHERE
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{(allTypes ? "" : @$" ""{m_currentTable}"".""Type"" = @Type AND ")}
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""{m_currentTable}"".""Path"" NOT IN (
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SELECT ""Path""
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FROM ""{m_previousTable}""
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)
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",
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$@"
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SELECT ""Path""
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FROM ""{m_previousTable}""
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WHERE
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{(allTypes ? "" : @$" ""{m_previousTable}"".""Type"" = @Type AND ")}
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""{m_previousTable}"".""Path"" NOT IN (
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SELECT ""Path""
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FROM ""{m_currentTable}""
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)
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",
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$@"
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SELECT ""{m_currentTable}"".""Path""
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FROM ""{m_currentTable}"",""{m_previousTable}""
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WHERE
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{(allTypes ? "" : $@" ""{m_currentTable}"".""Type"" = @Type AND ")}
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""{m_currentTable}"".""Path"" = ""{m_previousTable}"".""Path""
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AND (
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""{m_currentTable}"".""FileHash"" != ""{m_previousTable}"".""FileHash""
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OR ""{m_currentTable}"".""MetaHash"" != ""{m_previousTable}"".""MetaHash""
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OR ""{m_currentTable}"".""Type"" != ""{m_previousTable}"".""Type""
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)
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"
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);
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}
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public async Task<IChangeSizeReport> CreateChangeSizeReport()
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{
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var (Added, Deleted, Modified) = GetSqls(true);
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using (var cmd = m_db.Connection.CreateCommand(m_db.Transaction))
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{
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var result = new ChangeSizeReport
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{
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PreviousSize = await cmd.ExecuteScalarInt64Async($@"
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SELECT SUM(""Size"")
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FROM ""{m_previousTable}""
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", 0),
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CurrentSize = await cmd.ExecuteScalarInt64Async($@"
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SELECT SUM(""Size"")
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FROM ""{m_currentTable}""
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", 0),
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AddedSize = await cmd.ExecuteScalarInt64Async($@"
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SELECT SUM(""Size"")
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FROM ""{m_currentTable}""
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WHERE ""{m_currentTable}"".""Path"" IN ({Added})
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", 0),
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DeletedSize = await cmd.ExecuteScalarInt64Async($@"
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SELECT SUM(""Size"")
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FROM ""{m_previousTable}""
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WHERE ""{m_previousTable}"".""Path"" IN ({Deleted})
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", 0)
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};
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return result;
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}
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}
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public async Task<IChangeCountReport> CreateChangeCountReport()
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{
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var (Added, Deleted, Modified) = GetSqls(false);
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var added = @$"
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SELECT COUNT(*)
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FROM ({Added})
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";
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var deleted = @$"
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SELECT COUNT(*)
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FROM ({Deleted})
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";
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var modified = @$"
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SELECT COUNT(*)
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FROM ({Modified})
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";
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using var cmd = m_db.Connection.CreateCommand(m_db.Transaction);
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var result = new ChangeCountReport
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{
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AddedFolders = await cmd.SetCommandAndParameters(added)
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.SetParameterValue("@Type", (int)Interface.ListChangesElementType.Folder)
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.ExecuteScalarInt64Async(0),
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AddedSymlinks = await cmd.SetCommandAndParameters(added)
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.SetParameterValue("@Type", (int)Interface.ListChangesElementType.Symlink)
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.ExecuteScalarInt64Async(0),
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AddedFiles = await cmd.SetCommandAndParameters(added)
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.SetParameterValue("@Type", (int)Interface.ListChangesElementType.File)
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.ExecuteScalarInt64Async(0),
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DeletedFolders = await cmd.SetCommandAndParameters(deleted)
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.SetParameterValue("@Type", (int)Interface.ListChangesElementType.Folder)
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.ExecuteScalarInt64Async(0),
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DeletedSymlinks = await cmd.SetCommandAndParameters(deleted)
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.SetParameterValue("@Type", (int)Interface.ListChangesElementType.Symlink)
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.ExecuteScalarInt64Async(0),
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DeletedFiles = await cmd.SetCommandAndParameters(deleted)
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.SetParameterValue("@Type", (int)Interface.ListChangesElementType.File)
|
|
.ExecuteScalarInt64Async(0),
|
|
|
|
ModifiedFolders = await cmd.SetCommandAndParameters(modified)
|
|
.SetParameterValue("@Type", (int)Interface.ListChangesElementType.Folder)
|
|
.ExecuteScalarInt64Async(0),
|
|
ModifiedSymlinks = await cmd.SetCommandAndParameters(modified)
|
|
.SetParameterValue("@Type", (int)Interface.ListChangesElementType.Symlink)
|
|
.ExecuteScalarInt64Async(0),
|
|
ModifiedFiles = await cmd.SetCommandAndParameters(modified)
|
|
.SetParameterValue("@Type", (int)Interface.ListChangesElementType.File)
|
|
.ExecuteScalarInt64Async(0)
|
|
};
|
|
|
|
return result;
|
|
}
|
|
|
|
public async IAsyncEnumerable<Tuple<Interface.ListChangesChangeType, Interface.ListChangesElementType, string>> CreateChangedFileReport()
|
|
{
|
|
var (Added, Deleted, Modified) = GetSqls(false);
|
|
|
|
using (var cmd = m_db.Connection.CreateCommand(m_db.Transaction))
|
|
{
|
|
var elTypes = new[] {
|
|
Interface.ListChangesElementType.Folder,
|
|
Interface.ListChangesElementType.Symlink,
|
|
Interface.ListChangesElementType.File
|
|
};
|
|
|
|
async IAsyncEnumerable<Tuple<Interface.ListChangesChangeType, Interface.ListChangesElementType, string>> BuildResult(SqliteCommand cmd, string sql, Interface.ListChangesChangeType changeType)
|
|
{
|
|
cmd.SetCommandAndParameters(sql);
|
|
foreach (var type in elTypes)
|
|
await foreach (var s in ReaderToStringList(await cmd.SetParameterValue("@Type", (int)type).ExecuteReaderAsync()))
|
|
yield return new Tuple<Interface.ListChangesChangeType, Interface.ListChangesElementType, string>(changeType, type, s ?? "");
|
|
}
|
|
|
|
await foreach (var r in BuildResult(cmd, Added, Interface.ListChangesChangeType.Added))
|
|
yield return r;
|
|
await foreach (var r in BuildResult(cmd, Deleted, Interface.ListChangesChangeType.Deleted))
|
|
yield return r;
|
|
await foreach (var r in BuildResult(cmd, Modified, Interface.ListChangesChangeType.Modified))
|
|
yield return r;
|
|
}
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
DisposeAsync().Await();
|
|
}
|
|
|
|
public async Task DisposeAsync()
|
|
{
|
|
if (m_insertPreviousElementCommand != null)
|
|
{
|
|
try { await m_insertPreviousElementCommand.DisposeAsync(); }
|
|
catch { }
|
|
finally { m_insertPreviousElementCommand = null!; }
|
|
}
|
|
|
|
if (m_insertCurrentElementCommand != null)
|
|
{
|
|
try { await m_insertCurrentElementCommand.DisposeAsync(); }
|
|
catch { }
|
|
finally { m_insertCurrentElementCommand = null!; }
|
|
}
|
|
|
|
try { await m_db.Transaction.RollBackAsync(); }
|
|
catch { }
|
|
finally
|
|
{
|
|
m_previousTable = null!;
|
|
m_currentTable = null!;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|