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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Duplicati.Library.Main.Operation
{
internal class ListFilesHandler
{
private string m_backendurl;
private Options m_options;
private ListResults m_result;
public ListFilesHandler(string backend, Options options, ListResults result)
{
m_backendurl = backend;
m_options = options;
m_result = result;
}
public void Run(IEnumerable<string> filterstrings = null, Library.Utility.IFilter compositefilter = null)
{
var parsedfilter = new Library.Utility.FilterExpression(filterstrings);
var simpleList = !(parsedfilter.Type == Library.Utility.FilterType.Simple || m_options.AllVersions);
var filter = Library.Utility.JoinedFilterExpression.Join(parsedfilter, compositefilter);
//Use a speedy local query
if (!m_options.NoLocalDb && System.IO.File.Exists(m_options.Dbpath))
using(var db = new Database.LocalListDatabase(m_options.Dbpath))
{
m_result.SetDatabase(db);
using(var filesets = db.SelectFileSets(m_options.Time, m_options.Version))
{
if (parsedfilter.Type != Library.Utility.FilterType.Empty)
{
if (simpleList || (m_options.ListFolderContents && !m_options.AllVersions))
filesets.TakeFirst();
}
IEnumerable<Database.LocalListDatabase.IFileversion> files;
if (m_options.ListFolderContents)
files = filesets.SelectFolderContents(filter);
else if (m_options.ListPrefixOnly)
files = filesets.GetLargestPrefix(filter);
else if (parsedfilter.Type == Duplicati.Library.Utility.FilterType.Empty)
files = null;
else
files = filesets.SelectFiles(filter);
if (m_options.ListSetsOnly)
m_result.SetResult(
filesets.QuickSets.Select(x => new ListResultFileset(x.Version, x.Time, x.FileCount, x.FileSizes)).ToArray(),
null
);
else
m_result.SetResult(
filesets.Sets.Select(x => new ListResultFileset(x.Version, x.Time, x.FileCount, x.FileSizes)).ToArray(),
files == null ? null :
(from n in files
select (Duplicati.Library.Interface.IListResultFile)(new ListResultFile(n.Path, n.Sizes.ToArray())))
.ToArray()
);
return;
}
}
m_result.AddMessage("No local database, accessing remote store");
//TODO: Add prefix and foldercontents
if (m_options.ListFolderContents)
throw new Exception("Listing folder contents is not supported without a local database, consider using the \"repair\" option to rebuild the database.");
else if (m_options.ListPrefixOnly)
throw new Exception("Listing prefixes is not supported without a local database, consider using the \"repair\" option to rebuild the database.");
// Otherwise, grab info from remote location
using (var tmpdb = new Library.Utility.TempFile())
using (var db = new Database.LocalDatabase(tmpdb, "List", true))
using (var backend = new BackendManager(m_backendurl, m_options, m_result.BackendWriter, db))
{
m_result.SetDatabase(db);
var filteredList = ParseAndFilterFilesets(backend.List(), m_options);
if (filteredList.Count == 0)
throw new Exception("No filesets found on remote target");
var numberSeq = CreateResultSequence(filteredList);
if (parsedfilter.Type == Library.Utility.FilterType.Empty)
{
m_result.SetResult(numberSeq, null);
m_result.EncryptedFiles = filteredList.Any(x => !string.IsNullOrWhiteSpace(x.Value.EncryptionModule));
return;
}
var firstEntry = filteredList[0].Value;
filteredList.RemoveAt(0);
Dictionary<string, List<long>> res;
if (m_result.TaskControlRendevouz() == TaskControlState.Stop)
return;
using (var tmpfile = backend.Get(firstEntry.File.Name, firstEntry.File.Size, null))
using (var rd = new Volumes.FilesetVolumeReader(RestoreHandler.GetCompressionModule(firstEntry.File.Name), tmpfile, m_options))
if (simpleList)
{
m_result.SetResult(
numberSeq.Take(1),
(from n in rd.Files
where Library.Utility.FilterExpression.Matches(filter, n.Path)
orderby n.Path
select new ListResultFile(n.Path, new long[] { n.Size }))
.ToArray()
);
return;
}
else
{
res = rd.Files
.Where(x => Library.Utility.FilterExpression.Matches(filter, x.Path))
.ToDictionary(
x => x.Path,
y =>
{
var lst = new List<long>();
lst.Add(y.Size);
return lst;
},
Library.Utility.Utility.ClientFilenameStringComparer
);
}
long flindex = 1;
foreach(var flentry in filteredList)
using(var tmpfile = backend.Get(flentry.Value.File.Name, flentry.Value.File == null ? -1 : flentry.Value.File.Size, null))
using (var rd = new Volumes.FilesetVolumeReader(flentry.Value.CompressionModule, tmpfile, m_options))
{
if (m_result.TaskControlRendevouz() == TaskControlState.Stop)
return;
foreach(var p in from n in rd.Files where Library.Utility.FilterExpression.Matches(filter, n.Path) select n)
{
List<long> lst;
if (!res.TryGetValue(p.Path, out lst))
{
lst = new List<long>();
res[p.Path] = lst;
for(var i = 0; i < flindex; i++)
lst.Add(-1);
}
lst.Add(p.Size);
}
foreach(var n in from i in res where i.Value.Count < flindex + 1 select i)
n.Value.Add(-1);
flindex++;
}
m_result.SetResult(
numberSeq,
from n in res
orderby n.Key
select (Duplicati.Library.Interface.IListResultFile)(new ListResultFile(n.Key, n.Value))
);
}
}
public static List<KeyValuePair<long, Volumes.IParsedVolume>> ParseAndFilterFilesets(IEnumerable<Duplicati.Library.Interface.IFileEntry> rawlist, Options options)
{
var parsedlist = (from n in rawlist
let p = Volumes.VolumeBase.ParseFilename(n)
where p != null && p.FileType == RemoteVolumeType.Files
orderby p.Time descending
select p).ToArray();
var filelistFilter = RestoreHandler.FilterNumberedFilelist(options.Time, options.Version);
return filelistFilter(parsedlist).ToList();
}
public static IEnumerable<Library.Interface.IListResultFileset> CreateResultSequence(IEnumerable<KeyValuePair<long, Volumes.IParsedVolume>> filteredList)
{
return (from n in filteredList select (Library.Interface.IListResultFileset)(new ListResultFileset(n.Key, n.Value.Time.ToLocalTime(), -1, -1))).ToArray();
}
}
}
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