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// Copyright (C) 2017, The Duplicati Team
// http://www.duplicati.com, info@duplicati.com
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using Duplicati.Library.Interface;
namespace Duplicati.Library.Main.Operation
{
internal class ListBrokenFilesHandler
{
protected string m_backendurl;
protected Options m_options;
protected ListBrokenFilesResults m_result;
public ListBrokenFilesHandler(string backend, Options options, ListBrokenFilesResults result)
{
m_backendurl = backend;
m_options = options;
m_result = result;
}
public void Run(Library.Utility.IFilter filter, Func<long, DateTime, long, string, long, bool> callbackhandler = null)
{
if (!System.IO.File.Exists(m_options.Dbpath))
throw new UserInformationException(string.Format("Database file does not exist: {0}", m_options.Dbpath));
using (var db = new Database.LocalListBrokenFilesDatabase(m_options.Dbpath))
using (var tr = db.BeginTransaction())
DoRun(db, tr, filter, callbackhandler);
}
public static Tuple<DateTime, long, long>[] GetBrokenFilesetsFromRemote(string backendurl, BasicResults result, Database.LocalListBrokenFilesDatabase db, System.Data.IDbTransaction transaction, Options options, out List<Database.RemoteVolumeEntry> missing)
{
missing = null;
var brokensets = db.GetBrokenFilesets(options.Time, options.Version, transaction).ToArray();
if (brokensets.Length == 0)
{
if (db.RepairInProgress)
throw new UserInformationException("Cannot continue because the database is marked as being under repair, but does not have broken files.");
result.AddMessage("No broken filesets found in database, checking for missing remote files");
using (var backend = new BackendManager(backendurl, options, result.BackendWriter, db))
{
var remotestate = FilelistProcessor.RemoteListAnalysis(backend, options, db, result.BackendWriter, null);
if (!remotestate.ParsedVolumes.Any())
throw new UserInformationException("No remote volumes were found, refusing purge");
missing = remotestate.MissingVolumes.ToList();
if (missing.Count == 0)
{
result.AddMessage("Skipping operation because no files were found to be missing, and no filesets were recorded as broken.");
return null;
}
// Mark all volumes as disposable
foreach (var f in missing)
db.UpdateRemoteVolume(f.Name, RemoteVolumeState.Deleting, f.Size, f.Hash, transaction);
result.AddMessage(string.Format("Marked {0} remote files for deletion", missing.Count));
// Drop all content from tables
db.RemoveMissingBlocks(missing.Select(x => x.Name), transaction);
}
brokensets = db.GetBrokenFilesets(options.Time, options.Version, transaction).ToArray();
}
return brokensets;
}
private void DoRun(Database.LocalListBrokenFilesDatabase db, System.Data.IDbTransaction transaction, Library.Utility.IFilter filter, Func<long, DateTime, long, string, long, bool> callbackhandler)
{
if (filter != null && !filter.Empty)
throw new UserInformationException("Filters are not supported for this operation");
if (db.PartiallyRecreated)
throw new UserInformationException("The command does not work on partially recreated databases");
List<Database.RemoteVolumeEntry> missing;
var brokensets = GetBrokenFilesetsFromRemote(m_backendurl, m_result, db, transaction, m_options, out missing);
if (brokensets == null)
return;
if (brokensets.Length == 0)
{
m_result.BrokenFiles = new Tuple<long, DateTime, IEnumerable<Tuple<string, long>>>[0];
m_result.AddMessage("No broken filesets found");
return;
}
var fstimes = db.FilesetTimes.ToList();
var brokenfilesets =
brokensets.Select(x => new
{
Version = fstimes.FindIndex(y => y.Key == x.Item2),
Timestamp = x.Item1,
FilesetID = x.Item2,
BrokenCount = x.Item3
}
)
.ToArray();
m_result.BrokenFiles =
brokenfilesets.Select(
x => new Tuple<long, DateTime, IEnumerable<Tuple<string, long>>>(
x.Version,
x.Timestamp,
callbackhandler == null && !m_options.ListSetsOnly
? db.GetBrokenFilenames(x.FilesetID, transaction).ToArray().AsEnumerable()
: new MockList<Tuple<string, long>>((int)x.BrokenCount)
))
.ToArray();
if (callbackhandler != null)
foreach (var bs in brokenfilesets)
foreach (var fe in db.GetBrokenFilenames(bs.FilesetID, transaction))
if (!callbackhandler(bs.Version, bs.Timestamp, bs.BrokenCount, fe.Item1, fe.Item2))
break;
}
private class MockList<T> : IList<T>
{
public MockList(int count)
{
Count = count;
}
public T this[int index]
{
get { throw new NotImplementedException(); }
set { throw new NotImplementedException(); }
}
public int Count { get; private set; }
public bool IsReadOnly { get { return true; }}
public void Add(T item)
{
throw new NotImplementedException();
}
public void Clear()
{
throw new NotImplementedException();
}
public bool Contains(T item)
{
throw new NotImplementedException();
}
public void CopyTo(T[] array, int arrayIndex)
{
throw new NotImplementedException();
}
public IEnumerator<T> GetEnumerator()
{
throw new NotImplementedException();
}
public int IndexOf(T item)
{
throw new NotImplementedException();
}
public void Insert(int index, T item)
{
throw new NotImplementedException();
}
public bool Remove(T item)
{
throw new NotImplementedException();
}
public void RemoveAt(int index)
{
throw new NotImplementedException();
}
IEnumerator IEnumerable.GetEnumerator()
{
throw new NotImplementedException();
}
}
}
}
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