1014 lines
54 KiB
C#
1014 lines
54 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 System.IO;
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using Duplicati.Library.Main.Database;
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using Duplicati.Library.Main.Volumes;
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using Duplicati.Library.Interface;
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namespace Duplicati.Library.Main.Operation
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{
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internal class BackupHandler : IDisposable
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{
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private readonly Options m_options;
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private BackendManager m_backend;
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private string m_backendurl;
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private readonly byte[] m_blockbuffer;
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private readonly byte[] m_blocklistbuffer;
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private readonly System.Security.Cryptography.HashAlgorithm m_blockhasher;
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private readonly System.Security.Cryptography.HashAlgorithm m_filehasher;
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private LocalBackupDatabase m_database;
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private System.Data.IDbTransaction m_transaction;
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private BlockVolumeWriter m_blockvolume;
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private IndexVolumeWriter m_indexvolume;
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private FilesetVolumeWriter m_filesetvolume;
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private Snapshots.ISnapshotService m_snapshot;
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private readonly IMetahash EMPTY_METADATA;
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private Library.Utility.IFilter m_filter;
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private BackupResults m_result;
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//To better record what happens with the backend, we flush the log messages regularly
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// We cannot flush immediately, because that would mess up the transaction, as the uploader
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// is on another thread
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private readonly TimeSpan FLUSH_TIMESPAN = TimeSpan.FromSeconds(10);
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private DateTime m_backendLogFlushTimer;
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// Speed up things by caching these
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private readonly FileAttributes m_attributeFilter;
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private readonly Options.SymlinkStrategy m_symlinkPolicy;
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private readonly int m_blocksize;
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public BackupHandler(string backendurl, Options options, BackupResults results)
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{
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EMPTY_METADATA = Utility.WrapMetadata(new Dictionary<string, string>(), options);
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m_options = options;
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m_result = results;
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m_backendurl = backendurl;
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m_attributeFilter = m_options.FileAttributeFilter;
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m_symlinkPolicy = m_options.SymlinkPolicy;
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m_blocksize = m_options.Blocksize;
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m_blockbuffer = new byte[m_options.Blocksize * Math.Max(1, m_options.FileReadBufferSize / m_options.Blocksize)];
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m_blocklistbuffer = new byte[m_options.Blocksize];
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m_blockhasher = System.Security.Cryptography.HashAlgorithm.Create(m_options.BlockHashAlgorithm);
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m_filehasher = System.Security.Cryptography.HashAlgorithm.Create(m_options.FileHashAlgorithm);
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if (m_blockhasher == null)
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throw new Exception(string.Format(Strings.Foresthash.InvalidHashAlgorithm, m_options.BlockHashAlgorithm));
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if (m_filehasher == null)
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throw new Exception(string.Format(Strings.Foresthash.InvalidHashAlgorithm, m_options.FileHashAlgorithm));
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if (!m_blockhasher.CanReuseTransform)
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throw new Exception(string.Format(Strings.Foresthash.InvalidCryptoSystem, m_options.BlockHashAlgorithm));
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if (!m_filehasher.CanReuseTransform)
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throw new Exception(string.Format(Strings.Foresthash.InvalidCryptoSystem, m_options.FileHashAlgorithm));
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if (options.AllowPassphraseChange)
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throw new Exception(Strings.Foresthash.PassphraseChangeUnsupported);
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}
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public class FilterHandler
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{
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private Snapshots.ISnapshotService m_snapshot;
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private FileAttributes m_attributeFilter;
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private Duplicati.Library.Utility.IFilter m_filter;
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private Options.SymlinkStrategy m_symlinkPolicy;
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private ILogWriter m_logWriter;
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public FilterHandler(Snapshots.ISnapshotService snapshot,FileAttributes attributeFilter, Duplicati.Library.Utility.IFilter filter, Options.SymlinkStrategy symlinkPolicy, ILogWriter logWriter)
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{
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m_snapshot = snapshot;
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m_attributeFilter = attributeFilter;
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m_filter = filter;
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m_symlinkPolicy = symlinkPolicy;
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m_logWriter = logWriter;
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}
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public bool AttributeFilter(string rootpath, string path, FileAttributes attributes)
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{
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try
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{
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if (m_snapshot.IsBlockDevice(path))
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{
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if (m_logWriter != null)
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m_logWriter.AddVerboseMessage("Excluding block device: {0}", path);
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return false;
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}
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}
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catch (Exception ex)
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{
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if (m_logWriter != null)
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m_logWriter.AddWarning(string.Format("Failed to process path: ", path), ex);
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return false;
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}
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if ((m_attributeFilter & attributes) != 0)
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{
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if (m_logWriter != null)
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m_logWriter.AddVerboseMessage("Excluding path due to attribute filter: {0}", path);
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return false;
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}
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Library.Utility.IFilter match;
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if (!Library.Utility.FilterExpression.Matches(m_filter, path, out match))
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{
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if (m_logWriter != null)
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m_logWriter.AddVerboseMessage("Excluding path due to filter: {0} => {1}", path, match == null ? "null" : match.ToString());
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return false;
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}
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else if (match != null)
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{
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if (m_logWriter != null)
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m_logWriter.AddVerboseMessage("Including path due to filter: {0} => {1}", path, match.ToString());
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}
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if (m_symlinkPolicy != Options.SymlinkStrategy.Follow && (attributes & FileAttributes.ReparsePoint) == FileAttributes.ReparsePoint)
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{
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if (m_logWriter != null)
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m_logWriter.AddVerboseMessage("Excluding symlink: {0}", path);
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return false;
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}
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return true;
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}
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}
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public static Snapshots.ISnapshotService GetSnapshot(string[] sources, Options options, ILogWriter log)
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{
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try
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{
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if (options.SnapShotStrategy != Options.OptimizationStrategy.Off)
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return Duplicati.Library.Snapshots.SnapshotUtility.CreateSnapshot(sources, options.RawOptions);
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}
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catch (Exception ex)
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{
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if (options.SnapShotStrategy == Options.OptimizationStrategy.Required)
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throw;
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else if (options.SnapShotStrategy == Options.OptimizationStrategy.On)
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{
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log.AddWarning(string.Format(Strings.RSyncDir.SnapshotFailedError, ex.ToString()), ex);
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}
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}
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return Library.Utility.Utility.IsClientLinux ?
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(Library.Snapshots.ISnapshotService)new Duplicati.Library.Snapshots.NoSnapshotLinux(sources, options.RawOptions)
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:
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(Library.Snapshots.ISnapshotService)new Duplicati.Library.Snapshots.NoSnapshotWindows(sources, options.RawOptions);
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}
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private void CountFilesThread()
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{
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var updater = m_result.OperationProgressUpdater;
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var count = 0L;
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var size = 0L;
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var followSymlinks = m_options.SymlinkPolicy != Duplicati.Library.Main.Options.SymlinkStrategy.Follow;
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foreach(var path in m_snapshot.EnumerateFilesAndFolders(new FilterHandler(m_snapshot, m_attributeFilter, m_filter, m_symlinkPolicy, null).AttributeFilter))
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{
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var fa = FileAttributes.Normal;
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try { fa = m_snapshot.GetAttributes(path); }
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catch { }
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if (followSymlinks && ((fa & FileAttributes.ReparsePoint) == FileAttributes.ReparsePoint))
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continue;
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else if ((fa & FileAttributes.Directory) == FileAttributes.Directory)
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continue;
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count++;
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try { size += m_snapshot.GetFileSize(path); }
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catch { }
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m_result.OperationProgressUpdater.UpdatefileCount(count, size, false);
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}
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m_result.OperationProgressUpdater.UpdatefileCount(count, size, true);
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}
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public void Run(string[] sources, Library.Utility.IFilter filter)
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{
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m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_Begin);
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using(m_database = new LocalBackupDatabase(m_options.Dbpath, m_options))
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{
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m_result.SetDatabase(m_database);
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m_result.Dryrun = m_options.Dryrun;
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Utility.VerifyParameters(m_database, m_options);
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m_database.VerifyConsistency(null);
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// If there is no filter, we set an empty filter to simplify the code
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// If there is a filter, we make sure that fall-through includes the entry
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m_filter = filter ?? new Library.Utility.FilterExpression();
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var lastVolumeSize = -1L;
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m_backendLogFlushTimer = DateTime.Now.Add(FLUSH_TIMESPAN);
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System.Threading.Thread parallelScanner = null;
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try
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{
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m_snapshot = GetSnapshot(sources, m_options, m_result);
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// Start parallel scan
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if (m_options.ChangedFilelist == null || m_options.ChangedFilelist.Length < 1)
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{
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parallelScanner = new System.Threading.Thread(CountFilesThread) {
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Name = "Read ahead file counter",
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IsBackground = true
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};
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parallelScanner.Start();
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}
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using(m_backend = new BackendManager(m_backendurl, m_options, m_result.BackendWriter, m_database))
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using(m_filesetvolume = new FilesetVolumeWriter(m_options, m_database.OperationTimestamp))
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{
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var incompleteFilesets = m_database.GetIncompleteFilesets(null).OrderBy(x => x.Value).ToArray();
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if (incompleteFilesets.Length != 0)
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{
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m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_PreviousBackupFinalize);
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m_result.AddMessage(string.Format("Uploading filelist from previous interrupted backup"));
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using(var trn = m_database.BeginTransaction())
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{
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var incompleteSet = incompleteFilesets.Last();
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var badIds = from n in incompleteFilesets select n.Key;
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var prevs = (from n in m_database.FilesetTimes
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where
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n.Key < incompleteSet.Key
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&&
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!badIds.Contains(n.Key)
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orderby n.Key
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select n.Key).ToArray();
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var prevId = prevs.Length == 0 ? -1 : prevs.Last();
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FilesetVolumeWriter fsw = null;
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try
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{
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var s = 1;
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var fileTime = incompleteSet.Value + TimeSpan.FromSeconds(s);
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var oldFilesetID = incompleteSet.Key;
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// Probe for an unused filename
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while (s < 60)
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{
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var id = m_database.GetRemoteVolumeID(VolumeBase.GenerateFilename(RemoteVolumeType.Files, m_options, null, fileTime));
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if (id < 0)
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break;
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fileTime = incompleteSet.Value + TimeSpan.FromSeconds(++s);
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}
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fsw = new FilesetVolumeWriter(m_options, fileTime);
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fsw.VolumeID = m_database.RegisterRemoteVolume(fsw.RemoteFilename, RemoteVolumeType.Files, RemoteVolumeState.Temporary, m_transaction);
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var newFilesetID = m_database.CreateFileset(fsw.VolumeID, fileTime, trn);
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m_database.LinkFilesetToVolume(newFilesetID, fsw.VolumeID, trn);
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m_database.AppendFilesFromPreviousSet(trn, null, newFilesetID, prevId, fileTime);
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m_database.WriteFileset(fsw, trn, newFilesetID);
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if (m_options.Dryrun)
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{
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m_result.AddDryrunMessage(string.Format("Would upload fileset: {0}, size: {1}", fsw.RemoteFilename, Library.Utility.Utility.FormatSizeString(new FileInfo(fsw.LocalFilename).Length)));
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}
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else
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{
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m_database.UpdateRemoteVolume(fsw.RemoteFilename, RemoteVolumeState.Uploading, -1, null, trn);
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using(new Logging.Timer("CommitUpdateFilelistVolume"))
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trn.Commit();
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m_backend.Put(fsw);
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fsw = null;
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}
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}
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finally
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{
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if (fsw != null)
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try { fsw.Dispose(); }
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catch { fsw = null; }
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}
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}
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}
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if (!m_options.NoBackendverification)
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{
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m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_PreBackupVerify);
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using(new Logging.Timer("PreBackupVerify"))
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{
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try
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{
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FilelistProcessor.VerifyRemoteList(m_backend, m_options, m_database, m_result.BackendWriter);
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}
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catch (Exception ex)
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{
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if (m_options.AutoCleanup)
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{
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m_result.AddWarning("Backend verification failed, attempting automatic cleanup", ex);
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m_result.RepairResults = new RepairResults(m_result);
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new RepairHandler(m_backend.BackendUrl, m_options, (RepairResults)m_result.RepairResults).Run();
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m_result.AddMessage("Backend cleanup finished, retrying verification");
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FilelistProcessor.VerifyRemoteList(m_backend, m_options, m_database, m_result.BackendWriter);
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}
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else
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throw;
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}
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}
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}
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m_database.BuildLookupTable(m_options);
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m_transaction = m_database.BeginTransaction();
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m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_ProcessingFiles);
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var filesetvolumeid = m_database.RegisterRemoteVolume(m_filesetvolume.RemoteFilename, RemoteVolumeType.Files, RemoteVolumeState.Temporary, m_transaction);
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m_database.CreateFileset(filesetvolumeid, VolumeBase.ParseFilename(m_filesetvolume.RemoteFilename).Time, m_transaction);
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m_blockvolume = new BlockVolumeWriter(m_options);
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m_blockvolume.VolumeID = m_database.RegisterRemoteVolume(m_blockvolume.RemoteFilename, RemoteVolumeType.Blocks, RemoteVolumeState.Temporary, m_transaction);
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if (m_options.IndexfilePolicy != Options.IndexFileStrategy.None)
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{
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m_indexvolume = new IndexVolumeWriter(m_options);
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m_indexvolume.VolumeID = m_database.RegisterRemoteVolume(m_indexvolume.RemoteFilename, RemoteVolumeType.Index, RemoteVolumeState.Temporary, m_transaction);
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}
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var filterhandler = new FilterHandler(m_snapshot, m_attributeFilter, m_filter, m_symlinkPolicy, null);
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using(new Logging.Timer("BackupMainOperation"))
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{
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if (m_options.ChangedFilelist != null && m_options.ChangedFilelist.Length >= 1)
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{
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m_result.AddVerboseMessage("Processing supplied change list instead of enumerating filesystem");
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m_result.OperationProgressUpdater.UpdatefileCount(m_options.ChangedFilelist.Length, 0, true);
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foreach(var p in m_options.ChangedFilelist)
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{
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FileAttributes fa = new FileAttributes();
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try
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{
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fa = m_snapshot.GetAttributes(p);
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}
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catch (Exception ex)
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{
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m_result.AddWarning(string.Format("Failed to read attributes: {0}, message: {1}", p, ex.Message), ex);
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}
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if (filterhandler.AttributeFilter(null, p, fa))
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{
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try
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{
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this.HandleFilesystemEntry(p, fa);
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}
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catch (Exception ex)
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{
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m_result.AddWarning(string.Format("Failed to process element: {0}, message: {1}", p, ex.Message), ex);
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}
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}
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}
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m_database.AppendFilesFromPreviousSet(m_transaction, m_options.DeletedFilelist);
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}
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else
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{
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foreach(var path in m_snapshot.EnumerateFilesAndFolders(filterhandler.AttributeFilter))
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this.HandleFilesystemEntry(path, m_snapshot.GetAttributes(path));
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}
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//If the scanner is still running for some reason, make sure we kill it now
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if (parallelScanner != null && parallelScanner.IsAlive)
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parallelScanner.Abort();
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// We no longer need to snapshot active
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try { m_snapshot.Dispose(); }
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finally { m_snapshot = null; }
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m_result.OperationProgressUpdater.UpdatefileCount(m_result.ExaminedFiles, m_result.SizeOfExaminedFiles, true);
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}
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m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_Finalize);
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using(new Logging.Timer("FinalizeRemoteVolumes"))
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{
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if (m_blockvolume.SourceSize > 0)
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{
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lastVolumeSize = m_blockvolume.SourceSize;
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if (m_options.Dryrun)
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{
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m_result.AddDryrunMessage(string.Format("Would upload block volume: {0}, size: {1}", m_blockvolume.RemoteFilename, Library.Utility.Utility.FormatSizeString(new FileInfo(m_blockvolume.LocalFilename).Length)));
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if (m_indexvolume != null)
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{
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m_blockvolume.Close();
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UpdateIndexVolume();
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m_indexvolume.FinishVolume(Library.Utility.Utility.CalculateHash(m_blockvolume.LocalFilename), new FileInfo(m_blockvolume.LocalFilename).Length);
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m_result.AddDryrunMessage(string.Format("Would upload index volume: {0}, size: {1}", m_indexvolume.RemoteFilename, Library.Utility.Utility.FormatSizeString(new FileInfo(m_indexvolume.LocalFilename).Length)));
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}
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m_blockvolume.Dispose();
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m_blockvolume = null;
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m_indexvolume.Dispose();
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m_indexvolume = null;
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}
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else
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{
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m_database.UpdateRemoteVolume(m_blockvolume.RemoteFilename, RemoteVolumeState.Uploading, -1, null, m_transaction);
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m_blockvolume.Close();
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UpdateIndexVolume();
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using(new Logging.Timer("CommitUpdateRemoteVolume"))
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m_transaction.Commit();
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m_transaction = m_database.BeginTransaction();
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m_backend.Put(m_blockvolume, m_indexvolume);
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m_blockvolume = null;
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m_indexvolume = null;
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}
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}
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else
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{
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m_database.RemoveRemoteVolume(m_blockvolume.RemoteFilename, m_transaction);
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if (m_indexvolume != null)
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m_database.RemoveRemoteVolume(m_indexvolume.RemoteFilename, m_transaction);
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}
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}
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using(new Logging.Timer("UpdateChangeStatistics"))
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m_database.UpdateChangeStatistics(m_result);
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using(new Logging.Timer("VerifyConsistency"))
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m_database.VerifyConsistency(m_transaction);
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var changeCount =
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m_result.AddedFiles + m_result.ModifiedFiles + m_result.DeletedFiles +
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m_result.AddedFolders + m_result.ModifiedFolders + m_result.DeletedFolders +
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m_result.AddedSymlinks + m_result.ModifiedSymlinks + m_result.DeletedSymlinks;
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//Changes in the filelist triggers a filelist upload
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if (m_options.UploadUnchangedBackups || changeCount > 0)
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{
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using(new Logging.Timer("Uploading a new fileset"))
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{
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if (!string.IsNullOrEmpty(m_options.ControlFiles))
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foreach(var p in m_options.ControlFiles.Split(new char[] { System.IO.Path.PathSeparator }, StringSplitOptions.RemoveEmptyEntries))
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m_filesetvolume.AddControlFile(p, m_options.GetCompressionHintFromFilename(p));
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m_database.WriteFileset(m_filesetvolume, m_transaction);
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m_filesetvolume.Close();
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if (m_options.Dryrun)
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m_result.AddDryrunMessage(string.Format("Would upload fileset volume: {0}, size: {1}", m_filesetvolume.RemoteFilename, Library.Utility.Utility.FormatSizeString(new FileInfo(m_filesetvolume.LocalFilename).Length)));
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else
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{
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m_database.UpdateRemoteVolume(m_filesetvolume.RemoteFilename, RemoteVolumeState.Uploading, -1, null, m_transaction);
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using(new Logging.Timer("CommitUpdateRemoteVolume"))
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m_transaction.Commit();
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|
m_transaction = m_database.BeginTransaction();
|
|
|
|
m_backend.Put(m_filesetvolume);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
m_result.AddVerboseMessage("removing temp files, as no data needs to be uploaded");
|
|
m_database.RemoveRemoteVolume(m_filesetvolume.RemoteFilename, m_transaction);
|
|
}
|
|
|
|
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_WaitForUpload);
|
|
using(new Logging.Timer("Async backend wait"))
|
|
m_backend.WaitForComplete(m_database, m_transaction);
|
|
|
|
if (m_options.KeepTime.Ticks > 0 || m_options.KeepVersions != 0)
|
|
{
|
|
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_Delete);
|
|
m_result.DeleteResults = new DeleteResults(m_result);
|
|
using(var db = new LocalDeleteDatabase(m_database))
|
|
new DeleteHandler(m_backend.BackendUrl, m_options, (DeleteResults)m_result.DeleteResults).DoRun(db, m_transaction, true, lastVolumeSize <= m_options.SmallFileSize);
|
|
|
|
}
|
|
else if (lastVolumeSize <= m_options.SmallFileSize && !m_options.NoAutoCompact)
|
|
{
|
|
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_Compact);
|
|
m_result.CompactResults = new CompactResults(m_result);
|
|
using(var db = new LocalDeleteDatabase(m_database))
|
|
new CompactHandler(m_backend.BackendUrl, m_options, (CompactResults)m_result.CompactResults).DoCompact(db, true, m_transaction);
|
|
}
|
|
|
|
if (m_options.UploadVerificationFile)
|
|
{
|
|
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_VerificationUpload);
|
|
FilelistProcessor.UploadVerificationFile(m_backend.BackendUrl, m_options, m_result.BackendWriter, m_database, m_transaction);
|
|
}
|
|
|
|
if (m_options.Dryrun)
|
|
{
|
|
m_transaction.Rollback();
|
|
m_transaction = null;
|
|
}
|
|
else
|
|
{
|
|
using(new Logging.Timer("CommitFinalizingBackup"))
|
|
m_transaction.Commit();
|
|
|
|
m_transaction = null;
|
|
m_database.Vacuum();
|
|
|
|
if (!m_options.NoBackendverification)
|
|
{
|
|
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_PostBackupVerify);
|
|
using(var backend = new BackendManager(m_backendurl, m_options, m_result.BackendWriter, m_database))
|
|
{
|
|
using(new Logging.Timer("AfterBackupVerify"))
|
|
FilelistProcessor.VerifyRemoteList(backend, m_options, m_database, m_result.BackendWriter);
|
|
backend.WaitForComplete(m_database, null);
|
|
}
|
|
|
|
if (m_options.BackupTestSampleCount > 0 && m_database.GetRemoteVolumes().Count() > 0)
|
|
{
|
|
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_PostBackupTest);
|
|
m_result.TestResults = new TestResults(m_result);
|
|
|
|
using(var testdb = new LocalTestDatabase(m_database))
|
|
using(var backend = new BackendManager(m_backendurl, m_options, m_result.BackendWriter, testdb))
|
|
new TestHandler(m_backendurl, m_options, new TestResults(m_result))
|
|
.DoRun(m_options.BackupTestSampleCount, testdb, backend);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
m_result.OperationProgressUpdater.UpdatePhase(OperationPhase.Backup_Complete);
|
|
return;
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
m_result.AddError("Fatal error", ex);
|
|
throw;
|
|
}
|
|
finally
|
|
{
|
|
if (parallelScanner != null && parallelScanner.IsAlive)
|
|
{
|
|
parallelScanner.Abort();
|
|
parallelScanner.Join(500);
|
|
if (parallelScanner.IsAlive)
|
|
m_result.AddWarning("Failed to terminate filecounter thread", null);
|
|
}
|
|
|
|
if (m_snapshot != null)
|
|
try { m_snapshot.Dispose(); }
|
|
catch (Exception ex) { m_result.AddError(string.Format("Failed to dispose snapshot"), ex); }
|
|
finally { m_snapshot = null; }
|
|
|
|
if (m_transaction != null)
|
|
try { m_transaction.Rollback(); }
|
|
catch (Exception ex) { m_result.AddError(string.Format("Rollback error: {0}", ex.Message), ex); }
|
|
}
|
|
}
|
|
}
|
|
|
|
private bool HandleFilesystemEntry(string path, System.IO.FileAttributes attributes)
|
|
{
|
|
try
|
|
{
|
|
m_result.OperationProgressUpdater.StartFile(path, -1);
|
|
|
|
if (m_backendLogFlushTimer < DateTime.Now)
|
|
{
|
|
m_backendLogFlushTimer = DateTime.Now.Add(FLUSH_TIMESPAN);
|
|
m_backend.FlushDbMessages(m_database, null);
|
|
}
|
|
|
|
if ((attributes & FileAttributes.ReparsePoint) == FileAttributes.ReparsePoint)
|
|
{
|
|
if (m_options.SymlinkPolicy == Options.SymlinkStrategy.Ignore)
|
|
{
|
|
m_result.AddVerboseMessage("Ignoring symlink {0}", path);
|
|
return false;
|
|
}
|
|
|
|
if (m_options.SymlinkPolicy == Options.SymlinkStrategy.Store)
|
|
{
|
|
Dictionary<string, string> metadata;
|
|
|
|
if (m_options.StoreMetadata)
|
|
{
|
|
metadata = m_snapshot.GetMetadata(path);
|
|
if (metadata == null)
|
|
metadata = new Dictionary<string, string>();
|
|
|
|
if (!metadata.ContainsKey("CoreAttributes"))
|
|
metadata["CoreAttributes"] = attributes.ToString();
|
|
if (!metadata.ContainsKey("CoreLastWritetime"))
|
|
metadata["CoreLastWritetime"] = m_snapshot.GetLastWriteTimeUtc(path).Ticks.ToString();
|
|
}
|
|
else
|
|
{
|
|
metadata = new Dictionary<string, string>();
|
|
}
|
|
|
|
if (!metadata.ContainsKey("CoreSymlinkTarget"))
|
|
metadata["CoreSymlinkTarget"] = m_snapshot.GetSymlinkTarget(path);
|
|
|
|
var metahash = Utility.WrapMetadata(metadata, m_options);
|
|
AddSymlinkToOutput(path, DateTime.UtcNow, metahash);
|
|
|
|
m_result.AddVerboseMessage("Stored symlink {0}", path);
|
|
//Do not recurse symlinks
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if ((attributes & FileAttributes.Directory) == FileAttributes.Directory)
|
|
{
|
|
IMetahash metahash;
|
|
|
|
if (m_options.StoreMetadata)
|
|
{
|
|
Dictionary<string, string> metadata = m_snapshot.GetMetadata(path);
|
|
if (metadata == null)
|
|
metadata = new Dictionary<string, string>();
|
|
|
|
if (!metadata.ContainsKey("CoreAttributes"))
|
|
metadata["CoreAttributes"] = attributes.ToString();
|
|
if (!metadata.ContainsKey("CoreLastWritetime"))
|
|
metadata["CoreLastWritetime"] = m_snapshot.GetLastWriteTimeUtc(path).Ticks.ToString();
|
|
metahash = Utility.WrapMetadata(metadata, m_options);
|
|
}
|
|
else
|
|
{
|
|
metahash = EMPTY_METADATA;
|
|
}
|
|
|
|
m_result.AddVerboseMessage("Adding directory {0}", path);
|
|
AddFolderToOutput(path, DateTime.UtcNow, metahash);
|
|
return true;
|
|
}
|
|
|
|
m_result.OperationProgressUpdater.UpdatefilesProcessed(++m_result.ExaminedFiles, m_result.SizeOfExaminedFiles);
|
|
|
|
bool changed = false;
|
|
|
|
// The time we scan
|
|
DateTime scantime = DateTime.UtcNow;
|
|
// Last scan time
|
|
DateTime oldScanned;
|
|
// Last file modification
|
|
DateTime lastModified = m_snapshot.GetLastWriteTimeUtc(path);
|
|
var oldId = m_database.GetFileEntry(path, out oldScanned);
|
|
|
|
long filestatsize = m_snapshot.GetFileSize(path);
|
|
if ((oldId < 0 || m_options.DisableFiletimeCheck || LocalDatabase.NormalizeDateTime(lastModified) >= oldScanned) && (m_options.SkipFilesLargerThan == long.MaxValue || m_options.SkipFilesLargerThan == 0 || filestatsize < m_options.SkipFilesLargerThan))
|
|
{
|
|
m_result.AddVerboseMessage("Checking file for changes {0}", path);
|
|
m_result.OpenedFiles++;
|
|
|
|
long filesize = 0;
|
|
IMetahash metahashandsize;
|
|
if (m_options.StoreMetadata)
|
|
{
|
|
Dictionary<string, string> metadata = m_snapshot.GetMetadata(path);
|
|
if (metadata == null)
|
|
metadata = new Dictionary<string, string>();
|
|
|
|
if (!metadata.ContainsKey("CoreAttributes"))
|
|
metadata["CoreAttributes"] = attributes.ToString();
|
|
if (!metadata.ContainsKey("CoreLastWritetime"))
|
|
metadata["CoreLastWritetime"] = lastModified.Ticks.ToString();
|
|
|
|
metahashandsize = Utility.WrapMetadata(metadata, m_options);
|
|
}
|
|
else
|
|
{
|
|
metahashandsize = EMPTY_METADATA;
|
|
}
|
|
|
|
var hint = m_options.GetCompressionHintFromFilename(path);
|
|
var oldHash = oldId < 0 ? null : m_database.GetFileHash(oldId);
|
|
|
|
using (var blocklisthashes = new Library.Utility.FileBackedStringList())
|
|
using (var hashcollector = new Library.Utility.FileBackedStringList())
|
|
{
|
|
using (var fs = new Blockprocessor(m_snapshot.OpenRead(path), m_blockbuffer))
|
|
{
|
|
try { m_result.OperationProgressUpdater.StartFile(path, fs.Length); }
|
|
catch (Exception ex) { m_result.AddWarning(string.Format("Failed to read file length for file {0}", path), ex); }
|
|
|
|
int blocklistoffset = 0;
|
|
|
|
m_filehasher.Initialize();
|
|
|
|
|
|
var offset = 0;
|
|
var remaining = fs.Readblock();
|
|
|
|
do
|
|
{
|
|
var size = Math.Min(m_blocksize, remaining);
|
|
|
|
m_filehasher.TransformBlock(m_blockbuffer, offset, size, m_blockbuffer, offset);
|
|
var blockkey = m_blockhasher.ComputeHash(m_blockbuffer, offset, size);
|
|
if (m_blocklistbuffer.Length - blocklistoffset < blockkey.Length)
|
|
{
|
|
var blkey = Convert.ToBase64String(m_blockhasher.ComputeHash(m_blocklistbuffer, 0, blocklistoffset));
|
|
blocklisthashes.Add(blkey);
|
|
AddBlockToOutput(blkey, m_blocklistbuffer, 0, blocklistoffset, CompressionHint.Noncompressible, true);
|
|
blocklistoffset = 0;
|
|
}
|
|
|
|
Array.Copy(blockkey, 0, m_blocklistbuffer, blocklistoffset, blockkey.Length);
|
|
blocklistoffset += blockkey.Length;
|
|
|
|
var key = Convert.ToBase64String(blockkey);
|
|
AddBlockToOutput(key, m_blockbuffer, offset, size, hint, false);
|
|
hashcollector.Add(key);
|
|
filesize += size;
|
|
|
|
m_result.OperationProgressUpdater.UpdateFileProgress(filesize);
|
|
remaining -= size;
|
|
offset += size;
|
|
|
|
if (remaining == 0)
|
|
{
|
|
offset = 0;
|
|
remaining = fs.Readblock();
|
|
}
|
|
|
|
} while (remaining > 0);
|
|
|
|
//If all fits in a single block, don't bother with blocklists
|
|
if (hashcollector.Count > 1)
|
|
{
|
|
var blkeyfinal = Convert.ToBase64String(m_blockhasher.ComputeHash(m_blocklistbuffer, 0, blocklistoffset));
|
|
blocklisthashes.Add(blkeyfinal);
|
|
AddBlockToOutput(blkeyfinal, m_blocklistbuffer, 0, blocklistoffset, CompressionHint.Noncompressible, true);
|
|
}
|
|
}
|
|
|
|
m_result.SizeOfOpenedFiles += filesize;
|
|
m_filehasher.TransformFinalBlock(m_blockbuffer, 0, 0);
|
|
|
|
var filekey = Convert.ToBase64String(m_filehasher.Hash);
|
|
if (oldHash != filekey)
|
|
{
|
|
if (oldHash == null)
|
|
m_result.AddVerboseMessage("New file {0}", path);
|
|
else
|
|
m_result.AddVerboseMessage("File has changed {0}", path);
|
|
if (oldId < 0)
|
|
{
|
|
m_result.AddedFiles++;
|
|
m_result.SizeOfAddedFiles += filesize;
|
|
|
|
if (m_options.Dryrun)
|
|
m_result.AddDryrunMessage(string.Format("Would add new file {0}, size {1}", path, Library.Utility.Utility.FormatSizeString(filesize)));
|
|
}
|
|
else
|
|
{
|
|
m_result.ModifiedFiles++;
|
|
m_result.SizeOfModifiedFiles += filesize;
|
|
|
|
if (m_options.Dryrun)
|
|
m_result.AddDryrunMessage(string.Format("Would add changed file {0}, size {1}", path, Library.Utility.Utility.FormatSizeString(filesize)));
|
|
}
|
|
|
|
AddFileToOutput(path, filesize, scantime, metahashandsize, hashcollector, filekey, blocklisthashes);
|
|
changed = true;
|
|
}
|
|
else
|
|
{
|
|
// When we write the file to output, update the scan time
|
|
oldScanned = scantime;
|
|
m_result.AddVerboseMessage("File has not changed {0}", path);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (m_options.SkipFilesLargerThan == long.MaxValue || m_options.SkipFilesLargerThan == 0 || m_snapshot.GetFileSize(path) < m_options.SkipFilesLargerThan)
|
|
m_result.AddVerboseMessage("Skipped checking file, because timestamp was not updated {0}", path);
|
|
else
|
|
m_result.AddVerboseMessage("Skipped checking file, because the size exceeds limit {0}", path);
|
|
}
|
|
|
|
if (!changed)
|
|
AddUnmodifiedFile(oldId, oldScanned);
|
|
|
|
m_result.SizeOfExaminedFiles += filestatsize;
|
|
if (filestatsize != 0)
|
|
m_result.OperationProgressUpdater.UpdatefilesProcessed(m_result.ExaminedFiles, m_result.SizeOfExaminedFiles);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
m_result.AddWarning(string.Format("Failed to process path: {0}", path), ex);
|
|
m_result.FilesWithError++;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Adds the found file data to the output unless the block already exists
|
|
/// </summary>
|
|
/// <param name="key">The block hash</param>
|
|
/// <param name="data">The data matching the hash</param>
|
|
/// <param name="len">The size of the data</param>
|
|
/// <param name="offset">The offset into the data</param>
|
|
/// <param name="hint">Hint for compression module</param>
|
|
/// <param name="isBlocklistData">Indicates if the block is list data</param>
|
|
private bool AddBlockToOutput(string key, byte[] data, int offset, int len, CompressionHint hint, bool isBlocklistData)
|
|
{
|
|
if (m_database.AddBlock(key, len, m_blockvolume.VolumeID, m_transaction))
|
|
{
|
|
m_blockvolume.AddBlock(key, data, offset, len, hint);
|
|
|
|
//TODO: In theory a normal data block and blocklist block could be equal.
|
|
// this would cause the index file to not contain all data,
|
|
// if the data file is added before the blocklist data
|
|
// ... highly theoretical ...
|
|
if (m_options.IndexfilePolicy == Options.IndexFileStrategy.Full && isBlocklistData)
|
|
m_indexvolume.WriteBlocklist(key, data, offset, len);
|
|
|
|
if (m_blockvolume.Filesize > m_options.VolumeSize - m_options.Blocksize)
|
|
{
|
|
if (m_options.Dryrun)
|
|
{
|
|
m_blockvolume.Close();
|
|
m_result.AddDryrunMessage(string.Format("Would upload block volume: {0}, size: {1}", m_blockvolume.RemoteFilename, Library.Utility.Utility.FormatSizeString(new FileInfo(m_blockvolume.LocalFilename).Length)));
|
|
|
|
if (m_indexvolume != null)
|
|
{
|
|
UpdateIndexVolume();
|
|
m_indexvolume.FinishVolume(Library.Utility.Utility.CalculateHash(m_blockvolume.LocalFilename), new FileInfo(m_blockvolume.LocalFilename).Length);
|
|
m_result.AddDryrunMessage(string.Format("Would upload index volume: {0}, size: {1}", m_indexvolume.RemoteFilename, Library.Utility.Utility.FormatSizeString(new FileInfo(m_indexvolume.LocalFilename).Length)));
|
|
m_indexvolume.Dispose();
|
|
m_indexvolume = null;
|
|
}
|
|
|
|
m_blockvolume.Dispose();
|
|
m_blockvolume = null;
|
|
m_indexvolume.Dispose();
|
|
m_indexvolume = null;
|
|
}
|
|
else
|
|
{
|
|
//When uploading a new volume, we register the volumes and then flush the transaction
|
|
// this ensures that the local database and remote storage are as closely related as possible
|
|
m_database.UpdateRemoteVolume(m_blockvolume.RemoteFilename, RemoteVolumeState.Uploading, -1, null, m_transaction);
|
|
m_blockvolume.Close();
|
|
UpdateIndexVolume();
|
|
|
|
m_backend.FlushDbMessages(m_database, m_transaction);
|
|
m_backendLogFlushTimer = DateTime.Now.Add(FLUSH_TIMESPAN);
|
|
|
|
using(new Logging.Timer("CommitAddBlockToOutputFlush"))
|
|
m_transaction.Commit();
|
|
m_transaction = m_database.BeginTransaction();
|
|
|
|
m_backend.Put(m_blockvolume, m_indexvolume);
|
|
m_blockvolume = null;
|
|
m_indexvolume = null;
|
|
}
|
|
|
|
m_blockvolume = new BlockVolumeWriter(m_options);
|
|
m_blockvolume.VolumeID = m_database.RegisterRemoteVolume(m_blockvolume.RemoteFilename, RemoteVolumeType.Blocks, RemoteVolumeState.Temporary, m_transaction);
|
|
|
|
if (m_options.IndexfilePolicy != Options.IndexFileStrategy.None)
|
|
{
|
|
m_indexvolume = new IndexVolumeWriter(m_options);
|
|
m_indexvolume.VolumeID = m_database.RegisterRemoteVolume(m_indexvolume.RemoteFilename, RemoteVolumeType.Index, RemoteVolumeState.Temporary, m_transaction);
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
private void AddUnmodifiedFile(long oldId, DateTime scantime)
|
|
{
|
|
m_database.AddUnmodifiedFile(oldId, scantime, m_transaction);
|
|
}
|
|
|
|
|
|
/// <summary>
|
|
/// Adds a file to the output,
|
|
/// </summary>
|
|
/// <param name="filename">The name of the file to record</param>
|
|
/// <param name="lastModified">The value of the lastModified timestamp</param>
|
|
/// <param name="hashlist">The list of hashes that make up the file</param>
|
|
/// <param name="size">The size of the file</param>
|
|
/// <param name="fragmentoffset">The offset into a fragment block where the last few bytes are stored</param>
|
|
/// <param name="metadata">A lookup table with various metadata values describing the file</param>
|
|
private bool AddFolderToOutput(string filename, DateTime scantime, IMetahash meta)
|
|
{
|
|
long metadataid;
|
|
bool r = false;
|
|
|
|
//TODO: If meta.Size > blocksize...
|
|
r |= AddBlockToOutput(meta.Hash, meta.Blob, 0, (int)meta.Size, CompressionHint.Default, false);
|
|
r |= m_database.AddMetadataset(meta.Hash, meta.Size, out metadataid, m_transaction);
|
|
|
|
m_database.AddDirectoryEntry(filename, metadataid, scantime, m_transaction);
|
|
return r;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Adds a file to the output,
|
|
/// </summary>
|
|
/// <param name="filename">The name of the file to record</param>
|
|
/// <param name="lastModified">The value of the lastModified timestamp</param>
|
|
/// <param name="hashlist">The list of hashes that make up the file</param>
|
|
/// <param name="size">The size of the file</param>
|
|
/// <param name="fragmentoffset">The offset into a fragment block where the last few bytes are stored</param>
|
|
/// <param name="metadata">A lookup table with various metadata values describing the file</param>
|
|
private bool AddSymlinkToOutput(string filename, DateTime scantime, IMetahash meta)
|
|
{
|
|
long metadataid;
|
|
bool r = false;
|
|
|
|
//TODO: If meta.Size > blocksize...
|
|
r |= AddBlockToOutput(meta.Hash, meta.Blob, 0, (int)meta.Size, CompressionHint.Default, false);
|
|
r |= m_database.AddMetadataset(meta.Hash, meta.Size, out metadataid, m_transaction);
|
|
|
|
m_database.AddSymlinkEntry(filename, metadataid, scantime, m_transaction);
|
|
return r;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Adds a file to the output,
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/// </summary>
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/// <param name="filename">The name of the file to record</param>
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/// <param name="lastModified">The value of the lastModified timestamp</param>
|
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/// <param name="hashlist">The list of hashes that make up the file</param>
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|
/// <param name="size">The size of the file</param>
|
|
/// <param name="fragmentoffset">The offset into a fragment block where the last few bytes are stored</param>
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|
/// <param name="metadata">A lookup table with various metadata values describing the file</param>
|
|
private void AddFileToOutput(string filename, long size, DateTime scantime, IMetahash metadata, IEnumerable<string> hashlist, string filehash, IEnumerable<string> blocklisthashes)
|
|
{
|
|
long metadataid;
|
|
long blocksetid;
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|
|
|
//TODO: If metadata.Size > blocksize...
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AddBlockToOutput(metadata.Hash, metadata.Blob, 0, (int)metadata.Size, CompressionHint.Default, false);
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|
m_database.AddMetadataset(metadata.Hash, metadata.Size, out metadataid, m_transaction);
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|
|
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m_database.AddBlockset(filehash, size, m_blocksize, hashlist, blocklisthashes, out blocksetid, m_transaction);
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|
|
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//m_filesetvolume.AddFile(filename, filehash, size, scantime, metadata.Hash, metadata.Size, blocklisthashes);
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|
m_database.AddFile(filename, scantime, blocksetid, metadataid, m_transaction);
|
|
}
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|
|
|
|
|
private void UpdateIndexVolume()
|
|
{
|
|
if (m_indexvolume != null)
|
|
{
|
|
m_database.AddIndexBlockLink(m_indexvolume.VolumeID, m_blockvolume.VolumeID, m_transaction);
|
|
m_indexvolume.StartVolume(m_blockvolume.RemoteFilename);
|
|
|
|
foreach(var b in m_database.GetBlocks(m_blockvolume.VolumeID))
|
|
m_indexvolume.AddBlock(b.Hash, b.Size);
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|
|
|
m_database.UpdateRemoteVolume(m_indexvolume.RemoteFilename, RemoteVolumeState.Uploading, -1, null, m_transaction);
|
|
}
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
if (m_blockvolume != null)
|
|
{
|
|
try { m_blockvolume.Dispose(); }
|
|
catch (Exception ex) { m_result.AddError("Failed disposing block volume", ex); }
|
|
finally { m_blockvolume = null; }
|
|
}
|
|
|
|
if (m_indexvolume != null)
|
|
{
|
|
try { m_indexvolume.Dispose(); }
|
|
catch (Exception ex) { m_result.AddError("Failed disposing index volume", ex); }
|
|
finally { m_indexvolume = null; }
|
|
}
|
|
|
|
m_result.EndTime = DateTime.Now;
|
|
}
|
|
}
|
|
}
|