980 lines
48 KiB
C#
980 lines
48 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using Duplicati.Library.Main.Volumes;
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namespace Duplicati.Library.Main.Database
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{
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internal partial class LocalRestoreDatabase : LocalDatabase
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{
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protected string m_tempfiletable;
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protected string m_tempblocktable;
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protected long m_blocksize;
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protected DateTime m_restoreTime;
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public DateTime RestoreTime { get { return m_restoreTime; } }
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public LocalRestoreDatabase(string path, long blocksize)
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: this(new LocalDatabase(path, "Restore"), blocksize)
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{
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}
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public LocalRestoreDatabase(LocalDatabase dbparent, long blocksize)
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: base(dbparent)
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{
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//TODO: Should read this from DB?
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m_blocksize = blocksize;
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}
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public Tuple<long, long> PrepareRestoreFilelist(DateTime restoretime, long[] versions, Library.Utility.IFilter filter, ILogWriter log)
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{
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var guid = Library.Utility.Utility.ByteArrayAsHexString(Guid.NewGuid().ToByteArray());
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m_tempfiletable = "Fileset-" + guid;
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m_tempblocktable = "Blocks-" + guid;
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using(var cmd = m_connection.CreateCommand())
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{
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var filesetIds = GetFilesetIDs(NormalizeDateTime(restoretime), versions).ToList();
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while(filesetIds.Count > 0)
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{
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var filesetId = filesetIds[0];
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filesetIds.RemoveAt(0);
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m_restoreTime = ParseFromEpochSeconds(cmd.ExecuteScalarInt64(@"SELECT ""Timestamp"" FROM ""Fileset"" WHERE ""ID"" = ?", 0, filesetId));
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var ix = this.FilesetTimes.Select((value, index) => new { value.Key, index })
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.Where(n => n.Key == filesetId)
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.Select(pair => pair.index + 1)
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.FirstOrDefault() - 1;
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log.AddMessage(string.Format("Searching backup {0} ({1}) ...", ix, m_restoreTime));
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cmd.Parameters.Clear();
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cmd.ExecuteNonQuery(string.Format(@"DROP TABLE IF EXISTS ""{0}"" ", m_tempfiletable));
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cmd.ExecuteNonQuery(string.Format(@"DROP TABLE IF EXISTS ""{0}"" ", m_tempblocktable));
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cmd.ExecuteNonQuery(string.Format(@"CREATE TEMPORARY TABLE ""{0}"" (""ID"" INTEGER PRIMARY KEY, ""Path"" TEXT NOT NULL, ""BlocksetID"" INTEGER NOT NULL, ""MetadataID"" INTEGER NOT NULL, ""Targetpath"" TEXT NULL ) ", m_tempfiletable));
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cmd.ExecuteNonQuery(string.Format(@"CREATE TEMPORARY TABLE ""{0}"" (""ID"" INTEGER PRIMARY KEY, ""FileID"" INTEGER NOT NULL, ""Index"" INTEGER NOT NULL, ""Hash"" TEXT NOT NULL, ""Size"" INTEGER NOT NULL, ""Restored"" BOOLEAN NOT NULL, ""Metadata"" BOOLEAN NOT NULL)", m_tempblocktable));
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if (filter == null || filter.Empty)
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{
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// Simple case, restore everything
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cmd.CommandText = string.Format(@"INSERT INTO ""{0}"" (""Path"", ""BlocksetID"", ""MetadataID"") SELECT ""File"".""Path"", ""File"".""BlocksetID"", ""File"".""MetadataID"" FROM ""File"", ""FilesetEntry"" WHERE ""File"".""ID"" = ""FilesetEntry"".""FileID"" AND ""FilesetEntry"".""FilesetID"" = ? ", m_tempfiletable);
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cmd.AddParameter(filesetId);
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cmd.ExecuteNonQuery();
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}
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else if (filter is Library.Utility.FilterExpression && (filter as Library.Utility.FilterExpression).Type == Duplicati.Library.Utility.FilterType.Simple)
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{
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// If we get a list of filenames, the lookup table is faster
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using(var tr = m_connection.BeginTransaction())
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{
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var p = (filter as Library.Utility.FilterExpression).GetSimpleList();
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var m_filenamestable = "Filenames-" + guid;
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cmd.Transaction = tr;
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cmd.ExecuteNonQuery(string.Format(@"CREATE TEMPORARY TABLE ""{0}"" (""Path"" TEXT NOT NULL) ", m_filenamestable));
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cmd.CommandText = string.Format(@"INSERT INTO ""{0}"" (""Path"") VALUES (?)", m_filenamestable);
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cmd.AddParameter();
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foreach(var s in p)
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{
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cmd.SetParameterValue(0, s);
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cmd.ExecuteNonQuery();
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}
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//TODO: Handle case-insensitive filename lookup
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cmd.CommandText = string.Format(@"INSERT INTO ""{0}"" (""Path"", ""BlocksetID"", ""MetadataID"") SELECT ""File"".""Path"", ""File"".""BlocksetID"", ""File"".""MetadataID"" FROM ""File"", ""FilesetEntry"" WHERE ""File"".""ID"" = ""FilesetEntry"".""FileID"" AND ""FilesetEntry"".""FilesetID"" = ? AND ""Path"" IN (SELECT DISTINCT ""Path"" FROM ""{1}"") ", m_tempfiletable, m_filenamestable);
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cmd.SetParameterValue(0, filesetId);
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var c = cmd.ExecuteNonQuery();
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cmd.Parameters.Clear();
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if (c != p.Length && c != 0)
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{
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var sb = new StringBuilder();
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sb.AppendLine();
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using(var rd = cmd.ExecuteReader(string.Format(@"SELECT ""Path"" FROM ""{0}"" WHERE ""Path"" NOT IN (SELECT ""Path"" FROM ""{1}"")", m_filenamestable, m_tempfiletable)))
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while (rd.Read())
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sb.AppendLine(rd.GetValue(0).ToString());
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var actualrestoretime = ParseFromEpochSeconds(cmd.ExecuteScalarInt64(@"SELECT ""Timestamp"" FROM ""Fileset"" WHERE ""ID"" = ?", 0, filesetId));
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log.AddWarning(string.Format("{0} File(s) were not found in list of files for backup at {1}, will not be restored: {2}", p.Length - c, actualrestoretime.ToLocalTime(), sb), null);
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cmd.Parameters.Clear();
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}
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cmd.ExecuteNonQuery(string.Format(@"DROP TABLE IF EXISTS ""{0}"" ", m_filenamestable));
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using(new Logging.Timer("CommitPrepareFileset"))
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tr.Commit();
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}
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}
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else
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{
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// Restore but filter elements based on the filter expression
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// If this is too slow, we could add a special handler for wildcard searches too
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cmd.CommandText = string.Format(@"SELECT ""File"".""Path"", ""File"".""BlocksetID"", ""File"".""MetadataID"" FROM ""File"", ""FilesetEntry"" WHERE ""File"".""ID"" = ""FilesetEntry"".""FileID"" AND ""FilesetID"" = ?");
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cmd.AddParameter(filesetId);
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object[] values = new object[3];
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using(var cmd2 = m_connection.CreateCommand())
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{
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cmd2.CommandText = string.Format(@"INSERT INTO ""{0}"" (""Path"", ""BlocksetID"", ""MetadataID"") VALUES (?,?,?)", m_tempfiletable);
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cmd2.AddParameter();
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cmd2.AddParameter();
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cmd2.AddParameter();
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using(var rd = cmd.ExecuteReader())
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while (rd.Read())
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{
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rd.GetValues(values);
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if (values[0] != null && values[0] != DBNull.Value && Library.Utility.FilterExpression.Matches(filter, values[0].ToString()))
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{
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cmd2.SetParameterValue(0, values[0]);
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cmd2.SetParameterValue(1, values[1]);
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cmd2.SetParameterValue(2, values[2]);
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cmd2.ExecuteNonQuery();
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}
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}
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}
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}
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using(var rd = cmd.ExecuteReader(string.Format(@"SELECT COUNT(DISTINCT ""{0}"".""Path""), SUM(""Blockset"".""Length"") FROM ""{0}"", ""Blockset"" WHERE ""{0}"".""BlocksetID"" = ""Blockset"".""ID"" ", m_tempfiletable)))
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{
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var filecount = 0L;
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var filesize = 0L;
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if (rd.Read())
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{
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filecount = rd.ConvertValueToInt64(0, 0);
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filesize = rd.ConvertValueToInt64(1, 0);
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}
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if (filecount > 0)
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{
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log.AddVerboseMessage("Needs to restore {0} files ({1})", filecount, Library.Utility.Utility.FormatSizeString(filesize));
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return new Tuple<long, long>(filecount, filesize);
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}
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}
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}
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}
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return new Tuple<long, long>(0, 0);
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}
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public string GetLargestPrefix()
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{
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using (var cmd = m_connection.CreateCommand())
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{
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cmd.CommandText = string.Format(@"SELECT ""Path"" FROM ""{0}"" ORDER BY LENGTH(""Path"") DESC LIMIT 1", m_tempfiletable);
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var v0 = cmd.ExecuteScalar();
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string maxpath = "";
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if (v0 != null)
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maxpath = v0.ToString();
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cmd.CommandText = string.Format(@"SELECT COUNT(*) FROM ""{0}""", m_tempfiletable);
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var filecount = cmd.ExecuteScalarInt64(-1);
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long foundfiles = -1;
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//TODO: Handle FS case-sensitive?
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cmd.CommandText = string.Format(@"SELECT COUNT(*) FROM ""{0}"" WHERE SUBSTR(""Path"", 1, ?) = ?", m_tempfiletable);
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cmd.AddParameter();
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cmd.AddParameter();
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while (filecount != foundfiles && maxpath.Length > 0)
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{
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var mp = Library.Utility.Utility.AppendDirSeparator(maxpath);
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cmd.SetParameterValue(0, mp.Length);
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cmd.SetParameterValue(1, mp);
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foundfiles = cmd.ExecuteScalarInt64(-1);
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if (filecount != foundfiles)
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{
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var oldlen = maxpath.Length;
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maxpath = Duplicati.Library.Snapshots.SnapshotUtility.SystemIO.PathGetDirectoryName(maxpath);
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if (string.IsNullOrWhiteSpace(maxpath) || maxpath.Length == oldlen)
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maxpath = "";
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}
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}
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return maxpath == "" ? "" : Library.Utility.Utility.AppendDirSeparator(maxpath);
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}
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}
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public void SetTargetPaths(string largest_prefix, string destination)
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{
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using(var cmd = m_connection.CreateCommand())
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{
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if (string.IsNullOrEmpty(destination))
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{
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//The string fixing here is meant to provide some non-random
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// defaults when restoring cross OS, e.g. backup on Linux, restore on Windows
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//This is mostly meaningless, and the user really should use --restore-path
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if (Library.Utility.Utility.IsClientLinux)
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// For Win -> Linux, we remove the colon from the drive letter, and use the drive letter as root folder
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cmd.ExecuteNonQuery(string.Format(@"UPDATE ""{0}"" SET ""Targetpath"" = CASE WHEN SUBSTR(""Path"", 2, 1) == "":"" THEN ""/"" || SUBSTR(""Path"", 1, 1) || SUBSTR(""Path"", 3) ELSE ""Path"" END", m_tempfiletable));
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else
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// For Linux -> Win, we use the temporary folder's drive as the root path
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cmd.ExecuteNonQuery(string.Format(@"UPDATE ""{0}"" SET ""Targetpath"" = CASE WHEN SUBSTR(""Path"", 1, 1) == ""/"" THEN ? || SUBSTR(""Path"", 2) ELSE ""Path"" END", m_tempfiletable), Library.Utility.Utility.AppendDirSeparator(System.IO.Path.GetPathRoot(Library.Utility.TempFolder.SystemTempPath)));
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}
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else
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{
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if (string.IsNullOrEmpty(largest_prefix))
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{
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//Special case, restoring to new folder, but files are from different drives
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// So we use the format <restore path> / <drive letter> / <source path>
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// To avoid generating paths with a colon
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cmd.ExecuteNonQuery(string.Format(@"UPDATE ""{0}"" SET ""Targetpath"" = ? || CASE WHEN SUBSTR(""Path"", 2, 1) == "":"" THEN SUBSTR(""Path"", 1, 1) || SUBSTR(""Path"", 3) ELSE ""Path"" END", m_tempfiletable), destination);
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}
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else
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{
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largest_prefix = Library.Utility.Utility.AppendDirSeparator(largest_prefix);
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cmd.CommandText = string.Format(@"UPDATE ""{0}"" SET ""Targetpath"" = ? || SUBSTR(""Path"", ?)", m_tempfiletable);
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cmd.AddParameter(destination);
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cmd.AddParameter(largest_prefix.Length + 1);
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cmd.ExecuteNonQuery();
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}
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}
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}
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}
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public void FindMissingBlocks(ILogWriter log, bool skipMetadata)
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{
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using(var cmd = m_connection.CreateCommand())
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{
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cmd.CommandText = string.Format(@"INSERT INTO ""{0}"" (""FileID"", ""Index"", ""Hash"", ""Size"", ""Restored"", ""Metadata"") SELECT DISTINCT ""{1}"".""ID"", ""BlocksetEntry"".""Index"", ""Block"".""Hash"", ""Block"".""Size"", 0, 0 FROM ""{1}"", ""BlocksetEntry"", ""Block"" WHERE ""{1}"".""BlocksetID"" = ""BlocksetEntry"".""BlocksetID"" AND ""BlocksetEntry"".""BlockID"" = ""Block"".""ID"" ", m_tempblocktable, m_tempfiletable);
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var p1 = cmd.ExecuteNonQuery();
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int p2 = 0;
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if (!skipMetadata)
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{
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cmd.CommandText = string.Format(@"INSERT INTO ""{0}"" (""FileID"", ""Index"", ""Hash"", ""Size"", ""Restored"", ""Metadata"") SELECT DISTINCT ""{1}"".""ID"", ""BlocksetEntry"".""Index"", ""Block"".""Hash"", ""Block"".""Size"", 0, 1 FROM ""{1}"", ""BlocksetEntry"", ""Block"", ""Metadataset"" WHERE ""{1}"".""MetadataID"" = ""Metadataset"".""ID"" AND ""Metadataset"".""BlocksetID"" = ""BlocksetEntry"".""BlocksetID"" AND ""BlocksetEntry"".""BlockID"" = ""Block"".""ID"" ", m_tempblocktable, m_tempfiletable);
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p2 = cmd.ExecuteNonQuery();
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}
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if (log.VerboseOutput)
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{
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var size = cmd.ExecuteScalarInt64(string.Format(@"SELECT SUM(""Size"") FROM ""{0}"" ", m_tempblocktable), 0);
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log.AddVerboseMessage("Restore list contains {0} blocks with a total size of {1}", p1 + p2, Library.Utility.Utility.FormatSizeString(size));
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}
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}
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}
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public void UpdateTargetPath(long ID, string newname)
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{
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using (var cmd = m_connection.CreateCommand())
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cmd.ExecuteNonQuery(string.Format(@"UPDATE ""{0}"" SET ""TargetPath"" = ? WHERE ""ID"" = ?", m_tempfiletable), newname, ID);
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}
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public interface IExistingFileBlock
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{
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string Hash { get; }
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long Index { get; }
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long Size { get; }
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}
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public interface IExistingFile
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{
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string TargetPath { get; }
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string TargetHash { get; }
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long TargetFileID { get; }
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long Length { get; }
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IEnumerable<IExistingFileBlock> Blocks { get; }
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}
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public interface IBlockSource
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{
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string Path { get; }
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long Size { get; }
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long Offset { get; }
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bool IsMetadata { get; }
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}
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public interface IBlockDescriptor
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{
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string Hash { get; }
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long Size { get; }
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long Offset { get; }
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long Index { get; }
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bool IsMetadata { get; }
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IEnumerable<IBlockSource> Blocksources { get; }
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}
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public interface ILocalBlockSource
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{
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string TargetPath { get; }
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long TargetFileID { get; }
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IEnumerable<IBlockDescriptor> Blocks { get; }
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}
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public interface IFileToRestore
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{
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string Path { get; }
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string Hash { get; }
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long ID { get; }
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}
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public interface IPatchBlock
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{
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long Offset { get; }
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long Size { get; }
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string Key { get; }
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}
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public interface IVolumePatch
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{
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string Path { get; }
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long FileID { get; }
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IEnumerable<IPatchBlock> Blocks { get; }
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}
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private class ExistingFile : IExistingFile
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{
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private System.Data.IDataReader m_reader;
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public ExistingFile(System.Data.IDataReader rd) { m_reader = rd; HasMore = true; }
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public string TargetPath { get { return m_reader.ConvertValueToString(0); } }
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public string TargetHash { get { return m_reader.ConvertValueToString(1); } }
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public long TargetFileID { get { return m_reader.ConvertValueToInt64(2); } }
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public long Length { get { return m_reader.ConvertValueToInt64(3); } }
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public bool HasMore { get; private set; }
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private class ExistingFileBlock : IExistingFileBlock
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{
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private System.Data.IDataReader m_reader;
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public ExistingFileBlock(System.Data.IDataReader rd) { m_reader = rd; }
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public string Hash { get { return m_reader.ConvertValueToString(4); } }
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public long Index { get { return m_reader.ConvertValueToInt64(5); } }
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public long Size { get { return m_reader.ConvertValueToInt64(6); } }
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}
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public IEnumerable<IExistingFileBlock> Blocks
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{
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get
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{
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string p = this.TargetPath;
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while (HasMore && p == this.TargetPath)
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{
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yield return new ExistingFileBlock(m_reader);
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HasMore = m_reader.Read();
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}
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}
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}
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public static IEnumerable<IExistingFile> GetExistingFilesWithBlocks(System.Data.IDbConnection connection, string tablename)
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{
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using(var cmd = connection.CreateCommand())
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{
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cmd.CommandText = string.Format(@"SELECT ""{0}"".""TargetPath"", ""Blockset"".""FullHash"", ""{0}"".""ID"", ""Blockset"".""Length"", ""Block"".""Hash"", ""BlocksetEntry"".""Index"", ""Block"".""Size"" FROM ""{0}"", ""Blockset"", ""BlocksetEntry"", ""Block"" WHERE ""{0}"".""BlocksetID"" = ""Blockset"".""ID"" AND ""BlocksetEntry"".""BlocksetID"" = ""{0}"".""BlocksetID"" AND ""BlocksetEntry"".""BlockID"" = ""Block"".""ID"" ORDER BY ""{0}"".""TargetPath"", ""BlocksetEntry"".""Index""", tablename);
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using(var rd = cmd.ExecuteReader())
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if (rd.Read())
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{
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var more = true;
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while(more)
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{
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var f = new ExistingFile(rd);
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string current = f.TargetPath;
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yield return f;
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more = f.HasMore;
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while (more && current == f.TargetPath)
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more = rd.Read();
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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 IEnumerable<IExistingFile> GetExistingFilesWithBlocks()
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{
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return ExistingFile.GetExistingFilesWithBlocks(m_connection, m_tempfiletable);
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}
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private class LocalBlockSource : ILocalBlockSource
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{
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private class BlockDescriptor : IBlockDescriptor
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{
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private class BlockSource : IBlockSource
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{
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private System.Data.IDataReader m_reader;
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public BlockSource(System.Data.IDataReader rd) { m_reader = rd; }
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public string Path { get { return m_reader.ConvertValueToString(6); } }
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public long Offset { get { return m_reader.ConvertValueToInt64(7); } }
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public long Size { get { return m_reader.ConvertValueToInt64(8); } }
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public bool IsMetadata { get { return false; } }
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}
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private System.Data.IDataReader m_reader;
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public BlockDescriptor(System.Data.IDataReader rd) { m_reader = rd; HasMore = true; }
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private string TargetPath { get { return m_reader.ConvertValueToString(0); } }
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public string Hash { get { return m_reader.ConvertValueToString(2); } }
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public long Offset { get { return m_reader.ConvertValueToInt64(3); } }
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public long Index { get { return m_reader.ConvertValueToInt64(4); } }
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public long Size { get { return m_reader.ConvertValueToInt64(5); } }
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public bool IsMetadata { get { return !(m_reader.ConvertValueToInt64(9) == 0); } }
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public bool HasMore { get; private set; }
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public IEnumerable<IBlockSource> Blocksources
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{
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get
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{
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var p = this.TargetPath;
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var h = this.Hash;
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var s = this.Size;
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while (HasMore && p == this.TargetPath && h == this.Hash && s == this.Size)
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{
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yield return new BlockSource(m_reader);
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HasMore = m_reader.Read();
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}
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}
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}
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|
}
|
|
|
|
private System.Data.IDataReader m_reader;
|
|
public LocalBlockSource(System.Data.IDataReader rd) { m_reader = rd; HasMore = true; }
|
|
|
|
public string TargetPath { get { return m_reader.ConvertValueToString(0); } }
|
|
public long TargetFileID { get { return m_reader.ConvertValueToInt64(1); } }
|
|
|
|
public bool HasMore { get; private set; }
|
|
|
|
public IEnumerable<IBlockDescriptor> Blocks
|
|
{
|
|
get
|
|
{
|
|
var p = this.TargetPath;
|
|
while (HasMore && p == this.TargetPath)
|
|
{
|
|
var c = new BlockDescriptor(m_reader);
|
|
var h = c.Hash;
|
|
var s = c.Size;
|
|
|
|
yield return c;
|
|
|
|
HasMore = c.HasMore;
|
|
while (HasMore && c.Hash == h && c.Size == s && this.TargetPath == p)
|
|
HasMore = m_reader.Read();
|
|
}
|
|
}
|
|
}
|
|
|
|
public static IEnumerable<ILocalBlockSource> GetFilesAndSourceBlocks(System.Data.IDbConnection connection, string filetablename, string blocktablename, long blocksize, bool skipMetadata)
|
|
{
|
|
using(var cmd = connection.CreateCommand())
|
|
{
|
|
// TODO: Skip metadata as required
|
|
cmd.CommandText = string.Format(@"SELECT DISTINCT ""A"".""TargetPath"", ""A"".""ID"", ""B"".""Hash"", (""B"".""Index"" * {2}), ""B"".""Index"", ""B"".""Size"", ""C"".""Path"", (""D"".""Index"" * {2}), ""E"".""Size"", ""B"".""Metadata"" FROM ""{0}"" ""A"", ""{1}"" ""B"", ""File"" ""C"", ""BlocksetEntry"" ""D"", ""Block"" E WHERE ""A"".""ID"" = ""B"".""FileID"" AND ""C"".""BlocksetID"" = ""D"".""BlocksetID"" AND ""D"".""BlockID"" = ""E"".""ID"" AND ""B"".""Hash"" = ""E"".""Hash"" AND ""B"".""Size"" = ""E"".""Size"" AND ""B"".""Restored"" = 0", filetablename, blocktablename, blocksize);
|
|
using(var rd = cmd.ExecuteReader())
|
|
{
|
|
if (rd.Read())
|
|
{
|
|
var more = true;
|
|
while(more)
|
|
{
|
|
var f = new LocalBlockSource(rd);
|
|
string current = f.TargetPath;
|
|
yield return f;
|
|
|
|
more = f.HasMore;
|
|
while (more && current == f.TargetPath)
|
|
more = rd.Read();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public IEnumerable<ILocalBlockSource> GetFilesAndSourceBlocks(bool skipMetadata)
|
|
{
|
|
return LocalBlockSource.GetFilesAndSourceBlocks(m_connection, m_tempfiletable, m_tempblocktable, m_blocksize, skipMetadata);
|
|
}
|
|
|
|
public IEnumerable<IRemoteVolume> GetMissingVolumes()
|
|
{
|
|
using (var cmd = m_connection.CreateCommand())
|
|
{
|
|
cmd.CommandText = string.Format(@"SELECT DISTINCT ""RemoteVolume"".""Name"", ""RemoteVolume"".""Hash"", ""RemoteVolume"".""Size"" FROM ""RemoteVolume"" WHERE ""ID"" IN (SELECT DISTINCT ""Block"".""VolumeID"" FROM ""Block"" WHERE ""Block"".""Hash"" IN (SELECT DISTINCT ""{0}"".""Hash"" FROM ""{0}"" WHERE ""{0}"".""Restored"" = 0))", m_tempblocktable);
|
|
using (var rd = cmd.ExecuteReader())
|
|
{
|
|
object[] r = new object[3];
|
|
while (rd.Read())
|
|
{
|
|
rd.GetValues(r);
|
|
yield return new RemoteVolume(
|
|
rd.ConvertValueToString(0),
|
|
rd.ConvertValueToString(1),
|
|
rd.ConvertValueToInt64(2, -1)
|
|
);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public interface IFilesAndMetadata : IDisposable
|
|
{
|
|
IEnumerable<IVolumePatch> FilesWithMissingBlocks { get; }
|
|
IEnumerable<IVolumePatch> MetadataWithMissingBlocks { get; }
|
|
}
|
|
|
|
private class FilesAndMetadata : IFilesAndMetadata
|
|
{
|
|
private string m_tmptable;
|
|
private string m_filetablename;
|
|
private string m_blocktablename;
|
|
private long m_blocksize;
|
|
|
|
private System.Data.IDbConnection m_connection;
|
|
|
|
public FilesAndMetadata(System.Data.IDbConnection connection, string filetablename, string blocktablename, long blocksize, BlockVolumeReader curvolume)
|
|
{
|
|
m_filetablename = filetablename;
|
|
m_blocktablename = blocktablename;
|
|
m_blocksize = blocksize;
|
|
m_connection = connection;
|
|
|
|
using (var c = m_connection.CreateCommand())
|
|
{
|
|
m_tmptable = "VolumeFiles-" + Library.Utility.Utility.ByteArrayAsHexString(Guid.NewGuid().ToByteArray());
|
|
c.CommandText = string.Format(@"CREATE TEMPORARY TABLE ""{0}"" ( ""Hash"" TEXT NOT NULL, ""Size"" INTEGER NOT NULL )", m_tmptable);
|
|
c.ExecuteNonQuery();
|
|
|
|
c.CommandText = string.Format(@"INSERT INTO ""{0}"" (""Hash"", ""Size"") VALUES (?,?)", m_tmptable);
|
|
c.AddParameters(2);
|
|
foreach (var s in curvolume.Blocks)
|
|
{
|
|
c.SetParameterValue(0, s.Key);
|
|
c.SetParameterValue(1, s.Value);
|
|
c.ExecuteNonQuery();
|
|
}
|
|
}
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
if (m_tmptable != null)
|
|
using (var c = m_connection.CreateCommand())
|
|
{
|
|
c.CommandText = string.Format(@"DROP TABLE IF EXISTS ""{0}""", m_tmptable);
|
|
c.ExecuteNonQuery();
|
|
}
|
|
}
|
|
|
|
private class VolumePatch : IVolumePatch
|
|
{
|
|
private class PatchBlock : IPatchBlock
|
|
{
|
|
private System.Data.IDataReader m_reader;
|
|
public PatchBlock(System.Data.IDataReader rd) { m_reader = rd; }
|
|
|
|
public long Offset { get { return m_reader.ConvertValueToInt64(2); } }
|
|
public long Size { get { return m_reader.ConvertValueToInt64(3); } }
|
|
public string Key { get { return m_reader.ConvertValueToString(4); } }
|
|
}
|
|
|
|
private System.Data.IDataReader m_reader;
|
|
public VolumePatch(System.Data.IDataReader rd) { m_reader = rd; HasMore = true; }
|
|
|
|
public string Path { get { return m_reader.ConvertValueToString(0); } }
|
|
public long FileID { get { return m_reader.ConvertValueToInt64(1); } }
|
|
public bool HasMore { get; private set; }
|
|
|
|
public IEnumerable<IPatchBlock> Blocks
|
|
{
|
|
get
|
|
{
|
|
string p = this.Path;
|
|
while (HasMore && p == this.Path)
|
|
{
|
|
yield return new PatchBlock(m_reader);
|
|
HasMore = m_reader.Read();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public IEnumerable<IVolumePatch> FilesWithMissingBlocks
|
|
{
|
|
get
|
|
{
|
|
using(var cmd = m_connection.CreateCommand())
|
|
{
|
|
cmd.CommandText = string.Format(@"SELECT DISTINCT ""A"".""TargetPath"", ""B"".""FileID"", (""B"".""Index"" * {3}), ""B"".""Size"", ""C"".""Hash"" FROM ""{0}"" A, ""{1}"" B, ""{2}"" C WHERE ""A"".""ID"" = ""B"".""FileID"" AND ""B"".""Hash"" = ""C"".""Hash"" AND ""B"".""Size"" = ""C"".""Size"" AND ""B"".""Restored"" = 0 AND ""B"".""Metadata"" = 0 ORDER BY ""A"".""TargetPath"", ""B"".""Index""", m_filetablename, m_blocktablename, m_tmptable, m_blocksize);
|
|
using(var rd = cmd.ExecuteReader())
|
|
{
|
|
if (rd.Read())
|
|
{
|
|
var more = true;
|
|
while(more)
|
|
{
|
|
var f = new VolumePatch(rd);
|
|
string current = f.Path;
|
|
yield return f;
|
|
|
|
more = f.HasMore;
|
|
while (more && current == f.Path)
|
|
more = rd.Read();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public IEnumerable<IVolumePatch> MetadataWithMissingBlocks
|
|
{
|
|
get
|
|
{
|
|
using(var cmd = m_connection.CreateCommand())
|
|
{
|
|
cmd.CommandText = string.Format(@"SELECT DISTINCT ""A"".""TargetPath"", ""B"".""FileID"", (""B"".""Index"" * {3}), ""B"".""Size"", ""C"".""Hash"" FROM ""{0}"" A, ""{1}"" B, ""{2}"" C WHERE ""A"".""ID"" = ""B"".""FileID"" AND ""B"".""Hash"" = ""C"".""Hash"" AND ""B"".""Size"" = ""C"".""Size"" AND ""B"".""Restored"" = 0 AND ""B"".""Metadata"" = 1 ORDER BY ""A"".""TargetPath"", ""B"".""Index""", m_filetablename, m_blocktablename, m_tmptable, m_blocksize);
|
|
using(var rd = cmd.ExecuteReader())
|
|
{
|
|
if (rd.Read())
|
|
{
|
|
var more = true;
|
|
while (more)
|
|
{
|
|
var f = new VolumePatch(rd);
|
|
string current = f.Path;
|
|
yield return f;
|
|
|
|
more = f.HasMore;
|
|
while (more && current == f.Path)
|
|
more = rd.Read();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public string Tablename { get { return m_tmptable; } }
|
|
}
|
|
|
|
public IFilesAndMetadata GetMissingBlockData(BlockVolumeReader curvolume)
|
|
{
|
|
return new FilesAndMetadata(m_connection, m_tempfiletable, m_tempblocktable, m_blocksize, curvolume);
|
|
}
|
|
|
|
private class FileToRestore : IFileToRestore
|
|
{
|
|
public string Path { get; private set; }
|
|
public string Hash { get; private set; }
|
|
public long ID { get; private set; }
|
|
|
|
public FileToRestore(long id, string path, string hash)
|
|
{
|
|
this.ID = id;
|
|
this.Path = path;
|
|
this.Hash = hash;
|
|
}
|
|
}
|
|
|
|
public IEnumerable<IFileToRestore> GetFilesToRestore()
|
|
{
|
|
using(var cmd = m_connection.CreateCommand())
|
|
using(var rd = cmd.ExecuteReader(string.Format(@"SELECT ""{0}"".""ID"", ""{0}"".""TargetPath"", ""Blockset"".""FullHash"" FROM ""{0}"",""Blockset"" WHERE ""{0}"".""BlocksetID"" = ""Blockset"".""ID"" ", m_tempfiletable)))
|
|
while (rd.Read())
|
|
yield return new FileToRestore(rd.GetInt64(0), rd.GetString(1), rd.GetString(2));
|
|
}
|
|
|
|
public void DropRestoreTable()
|
|
{
|
|
using (var cmd = m_connection.CreateCommand())
|
|
{
|
|
if (m_tempfiletable != null)
|
|
try
|
|
{
|
|
cmd.CommandText = string.Format(@"DROP TABLE IF EXISTS ""{0}""", m_tempfiletable);
|
|
cmd.ExecuteNonQuery();
|
|
}
|
|
catch(Exception ex) { if (m_result != null) m_result.AddWarning(string.Format("Cleanup error: {0}", ex.Message), ex); }
|
|
finally { m_tempfiletable = null; }
|
|
|
|
if (m_tempblocktable != null)
|
|
try
|
|
{
|
|
cmd.CommandText = string.Format(@"DROP TABLE IF EXISTS ""{0}""", m_tempblocktable);
|
|
cmd.ExecuteNonQuery();
|
|
}
|
|
catch(Exception ex) { if (m_result != null) m_result.AddWarning(string.Format("Cleanup error: {0}", ex.Message), ex); }
|
|
finally { m_tempblocktable = null; }
|
|
}
|
|
}
|
|
|
|
public interface IBlockMarker : IDisposable
|
|
{
|
|
void SetBlockRestored(long targetfileid, long index, string hash, long blocksize, bool metadata);
|
|
void SetAllBlocksMissing(long targetfileid);
|
|
void SetAllBlocksRestored(long targetfileid);
|
|
void Commit(ILogWriter log);
|
|
void UpdateProcessed(IOperationProgressUpdater writer);
|
|
System.Data.IDbTransaction Transaction { get; }
|
|
}
|
|
|
|
private class BlockMarker : IBlockMarker
|
|
{
|
|
private System.Data.IDbCommand m_insertblockCommand;
|
|
private System.Data.IDbCommand m_resetfileCommand;
|
|
private System.Data.IDbCommand m_updateAsRestoredCommand;
|
|
private System.Data.IDbCommand m_statUpdateCommand;
|
|
private bool m_hasUpdates = false;
|
|
|
|
private string m_updateTable;
|
|
private string m_blocktablename;
|
|
|
|
public System.Data.IDbTransaction Transaction { get { return m_insertblockCommand.Transaction; } }
|
|
|
|
public BlockMarker(System.Data.IDbConnection connection, string blocktablename, string filetablename)
|
|
{
|
|
m_insertblockCommand = connection.CreateCommand();
|
|
m_resetfileCommand = connection.CreateCommand();
|
|
m_updateAsRestoredCommand = connection.CreateCommand();
|
|
m_statUpdateCommand = connection.CreateCommand();
|
|
|
|
m_insertblockCommand.Transaction = connection.BeginTransaction();
|
|
m_resetfileCommand.Transaction = m_insertblockCommand.Transaction;
|
|
m_updateAsRestoredCommand.Transaction = m_insertblockCommand.Transaction;
|
|
m_statUpdateCommand.Transaction = m_insertblockCommand.Transaction;
|
|
|
|
m_blocktablename = blocktablename;
|
|
m_updateTable = "UpdatedBlocks-" + Library.Utility.Utility.ByteArrayAsHexString(Guid.NewGuid().ToByteArray());
|
|
|
|
m_insertblockCommand.ExecuteNonQuery(string.Format(@"CREATE TEMPORARY TABLE ""{0}"" (""FileID"" INTEGER NOT NULL, ""Index"" INTEGER NOT NULL, ""Hash"" TEXT NOT NULL, ""Size"" INTEGER NOT NULL, ""Metadata"" BOOLEAN NOT NULL)", m_updateTable));
|
|
m_insertblockCommand.CommandText = string.Format(@"INSERT INTO ""{0}"" (""FileID"", ""Index"", ""Hash"", ""Size"", ""Metadata"") VALUES (?, ?, ?, ?, ?) ", m_updateTable);
|
|
m_insertblockCommand.AddParameters(5);
|
|
|
|
m_resetfileCommand.CommandText = string.Format(@"DELETE FROM ""{0}"" WHERE ""FileID"" = ?", m_updateTable);
|
|
m_resetfileCommand.AddParameters(1);
|
|
|
|
m_updateAsRestoredCommand.CommandText = string.Format(@"INSERT INTO ""{0}"" (""FileID"", ""Index"", ""Hash"", ""Size"") SELECT ""FileID"", ""Index"", ""Hash"", ""Size"" FROM ""{1}"" WHERE ""{1}"".""FileID"" = ?", m_updateTable, m_blocktablename);
|
|
m_updateAsRestoredCommand.AddParameters(1);
|
|
|
|
m_statUpdateCommand.CommandText = string.Format(@"SELECT COUNT(DISTINCT ""FileID""), SUM(""Size"") FROM ""{0}"" WHERE ""Restored"" = 1 OR ""ID"" IN (SELECT ""{0}"".""ID"" FROM ""{0}"", ""{1}"" WHERE ""{0}"".""FileID"" = ""{1}"".""FileID"" AND ""{0}"".""Index"" = ""{1}"".""Index"" AND ""{0}"".""Hash"" = ""{1}"".""Hash"" AND ""{0}"".""Size"" = ""{1}"".""Size"" )", m_blocktablename, m_updateTable);
|
|
}
|
|
|
|
public void UpdateProcessed(IOperationProgressUpdater updater)
|
|
{
|
|
if (!m_hasUpdates)
|
|
return;
|
|
|
|
m_hasUpdates = false;
|
|
using(var rd = m_statUpdateCommand.ExecuteReader())
|
|
{
|
|
var filesprocessed = 0L;
|
|
var processedsize = 0L;
|
|
|
|
if (rd.Read())
|
|
{
|
|
filesprocessed = rd.ConvertValueToInt64(0, 0);
|
|
processedsize = rd.ConvertValueToInt64(1, 0);
|
|
}
|
|
|
|
updater.UpdatefilesProcessed(filesprocessed, processedsize);
|
|
}
|
|
}
|
|
|
|
public void SetAllBlocksMissing(long targetfileid)
|
|
{
|
|
m_hasUpdates = true;
|
|
m_resetfileCommand.SetParameterValue(0, targetfileid);
|
|
var r = m_resetfileCommand.ExecuteNonQuery();
|
|
if (r <= 0)
|
|
throw new Exception("Unexpected reset result");
|
|
}
|
|
|
|
public void SetAllBlocksRestored(long targetfileid)
|
|
{
|
|
m_hasUpdates = true;
|
|
m_updateAsRestoredCommand.SetParameterValue(0, targetfileid);
|
|
var r = m_updateAsRestoredCommand.ExecuteNonQuery();
|
|
if (r <= 0)
|
|
throw new Exception("Unexpected reset result");
|
|
}
|
|
|
|
public void SetBlockRestored(long targetfileid, long index, string hash, long size, bool metadata)
|
|
{
|
|
m_hasUpdates = true;
|
|
m_insertblockCommand.SetParameterValue(0, targetfileid);
|
|
m_insertblockCommand.SetParameterValue(1, index);
|
|
m_insertblockCommand.SetParameterValue(2, hash);
|
|
m_insertblockCommand.SetParameterValue(3, size);
|
|
m_insertblockCommand.SetParameterValue(4, metadata);
|
|
var r = m_insertblockCommand.ExecuteNonQuery();
|
|
if (r != 1)
|
|
throw new Exception("Unexpected insert result");
|
|
}
|
|
|
|
public void Commit(ILogWriter log)
|
|
{
|
|
m_insertblockCommand.Parameters.Clear();
|
|
var rc = m_insertblockCommand.ExecuteNonQuery(string.Format(@"UPDATE ""{0}"" SET ""Restored"" = 1 WHERE ""ID"" IN (SELECT ""{0}"".""ID"" FROM ""{0}"", ""{1}"" WHERE ""{0}"".""FileID"" = ""{1}"".""FileID"" AND ""{0}"".""Index"" = ""{1}"".""Index"" AND ""{0}"".""Hash"" = ""{1}"".""Hash"" AND ""{0}"".""Size"" = ""{1}"".""Size"" AND ""{0}"".""Metadata"" = ""{1}"".""Metadata"" )", m_blocktablename, m_updateTable));
|
|
var nc = m_insertblockCommand.ExecuteScalarInt64(string.Format(@"SELECT COUNT(*) FROM ""{0}"" ", m_updateTable), 0);
|
|
|
|
if (rc != nc)
|
|
log.AddWarning(string.Format("Inconsistency while marking blocks as updated. Updated blocks: {0}, Registered blocks: {1}", rc, nc), null);
|
|
|
|
m_insertblockCommand.ExecuteNonQuery(string.Format(@"DROP TABLE IF EXISTS ""{0}"" ", m_updateTable));
|
|
m_updateTable = null;
|
|
|
|
var tr = m_insertblockCommand.Transaction;
|
|
m_insertblockCommand.Dispose();
|
|
m_insertblockCommand = null;
|
|
using(new Logging.Timer("CommitBlockMarker"))
|
|
tr.Commit();
|
|
tr.Dispose();
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
if (m_updateTable != null)
|
|
{
|
|
try
|
|
{
|
|
m_insertblockCommand.Parameters.Clear();
|
|
m_insertblockCommand.ExecuteNonQuery(string.Format(@"DROP TABLE IF EXISTS ""{0}"" ", m_updateTable));
|
|
}
|
|
catch { }
|
|
finally { m_updateTable = null; }
|
|
}
|
|
|
|
if (m_insertblockCommand != null)
|
|
try { m_insertblockCommand.Dispose(); }
|
|
catch { }
|
|
finally { m_insertblockCommand = null; }
|
|
|
|
if (m_resetfileCommand != null)
|
|
try { m_resetfileCommand.Dispose(); }
|
|
catch { }
|
|
finally { m_resetfileCommand = null; }
|
|
|
|
if (m_updateAsRestoredCommand != null)
|
|
try { m_updateAsRestoredCommand.Dispose(); }
|
|
catch { }
|
|
finally { m_updateAsRestoredCommand = null; }
|
|
|
|
if (m_statUpdateCommand != null)
|
|
try { m_statUpdateCommand.Dispose(); }
|
|
catch { }
|
|
finally { m_statUpdateCommand = null; }
|
|
|
|
}
|
|
}
|
|
|
|
public IBlockMarker CreateBlockMarker()
|
|
{
|
|
return new BlockMarker(m_connection, m_tempblocktable, m_tempfiletable);
|
|
}
|
|
|
|
public override void Dispose()
|
|
{
|
|
base.Dispose();
|
|
DropRestoreTable();
|
|
}
|
|
|
|
public IEnumerable<string> GetTargetFolders()
|
|
{
|
|
using (var cmd = m_connection.CreateCommand())
|
|
using (var rd = cmd.ExecuteReader(string.Format(@"SELECT ""TargetPath"" FROM ""{0}"" WHERE ""BlocksetID"" == ?", m_tempfiletable), FOLDER_BLOCKSET_ID))
|
|
while(rd.Read())
|
|
yield return rd.GetValue(0).ToString();
|
|
}
|
|
|
|
public interface IFastSource
|
|
{
|
|
string TargetPath { get; }
|
|
long TargetFileID { get; }
|
|
string SourcePath { get; }
|
|
IEnumerable<IBlockEntry> Blocks { get; }
|
|
}
|
|
|
|
public interface IBlockEntry
|
|
{
|
|
long Offset { get; }
|
|
long Size { get; }
|
|
long Index { get; }
|
|
string Hash { get; }
|
|
}
|
|
|
|
private class FastSource : IFastSource
|
|
{
|
|
private class BlockEntry : IBlockEntry
|
|
{
|
|
private System.Data.IDataReader m_rd;
|
|
private long m_blocksize;
|
|
public BlockEntry(System.Data.IDataReader rd, long blocksize) { m_rd = rd; m_blocksize = blocksize; }
|
|
public long Offset { get { return m_rd.GetInt64(3) * m_blocksize; } }
|
|
public long Index { get { return m_rd.GetInt64(3); } }
|
|
public long Size { get { return m_rd.GetInt64(5); } }
|
|
public string Hash { get { return m_rd.GetString(4); } }
|
|
}
|
|
|
|
private System.Data.IDataReader m_rd;
|
|
private long m_blocksize;
|
|
public FastSource(System.Data.IDataReader rd, long blocksize) { m_rd = rd; m_blocksize = blocksize; MoreData = true; }
|
|
public bool MoreData { get; private set; }
|
|
public string TargetPath { get { return m_rd.GetValue(0).ToString(); } }
|
|
public long TargetFileID { get { return m_rd.GetInt64(2); } }
|
|
public string SourcePath { get { return m_rd.GetValue(1).ToString(); } }
|
|
|
|
public IEnumerable<IBlockEntry> Blocks
|
|
{
|
|
get
|
|
{
|
|
var tid = this.TargetFileID;
|
|
|
|
do
|
|
{
|
|
yield return new BlockEntry(m_rd, m_blocksize);
|
|
} while((MoreData = m_rd.Read()) && tid == this.TargetFileID);
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
public IEnumerable<IFastSource> GetFilesAndSourceBlocksFast()
|
|
{
|
|
var whereclause = string.Format(@" ""{0}"".""ID"" = ""{1}"".""FileID"" AND ""{1}"".""Restored"" = 0 AND ""{1}"".""Metadata"" = 0 AND ""{0}"".""TargetPath"" != ""{0}"".""Path"" ", m_tempfiletable, m_tempblocktable);
|
|
var sourepaths = string.Format(@"SELECT DISTINCT ""{0}"".""Path"" FROM ""{0}"", ""{1}"" WHERE " + whereclause, m_tempfiletable, m_tempblocktable);
|
|
var latestBlocksetIds = @"SELECT ""File"".""Path"", ""File"".""BlocksetID"", MAX(""Fileset"".""Timestamp"") FROM ""Fileset"", ""FilesetEntry"", ""File"" WHERE ""FilesetEntry"".""FileID"" = ""File"".""ID"" AND ""FilesetEntry"".""FilesetID"" = ""Fileset"".""ID"" AND ""File"".""Path"" IN (" + sourepaths + @") GROUP BY ""File"".""Path"" ";
|
|
var sources = string.Format(@"SELECT DISTINCT ""{0}"".""TargetPath"", ""{0}"".""Path"", ""{0}"".""ID"", ""{1}"".""Index"", ""{1}"".""Hash"", ""{1}"".""Size"" FROM ""{0}"", ""{1}"", ""File"", (" + latestBlocksetIds + @") S, ""Block"", ""BlocksetEntry"" WHERE ""BlocksetEntry"".""BlocksetID"" = ""S"".""BlocksetID"" AND ""BlocksetEntry"".""BlocksetID"" = ""File"".""BlocksetID"" AND ""BlocksetEntry"".""BlockID"" = ""Block"".""ID"" AND ""{1}"".""Index"" = ""BlocksetEntry"".""Index"" AND ""{1}"".""Hash"" = ""Block"".""Hash"" AND ""{1}"".""Size"" = ""Block"".""Size"" AND ""S"".""Path"" = ""{0}"".""Path"" AND " + whereclause + @" ORDER BY ""{0}"".""ID"", ""{1}"".""Index"" ", m_tempfiletable, m_tempblocktable);
|
|
using(var cmd = m_connection.CreateCommand())
|
|
using(var rd = cmd.ExecuteReader(sources))
|
|
{
|
|
if (rd.Read())
|
|
{
|
|
var more = false;
|
|
do
|
|
{
|
|
var n = new FastSource(rd, m_blocksize);
|
|
var tid = n.TargetFileID;
|
|
yield return n;
|
|
|
|
more = n.MoreData;
|
|
while(more && n.TargetFileID == tid)
|
|
more = rd.Read();
|
|
|
|
} while (more);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
}
|