DocSpace-client/common/ASC.Data.Backup.Core/Core/FileBackupProvider.cs
2022-05-26 12:01:54 +03:00

246 lines
8.8 KiB
C#

// (c) Copyright Ascensio System SIA 2010-2022
//
// This program is a free software product.
// You can redistribute it and/or modify it under the terms
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
// any third-party rights.
//
// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
//
// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
//
// The interactive user interfaces in modified source and object code versions of the Program must
// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
//
// Pursuant to Section 7(b) of the License you must retain the original Product logo when
// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
// trademark law for use of our trademarks.
//
// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
namespace ASC.Data.Backup;
[Scope]
public class FileBackupProvider : IBackupProvider
{
public string Name => "Files";
private readonly IEnumerable<string> _allowedModules;
private readonly ILogger<FileBackupProvider> _logger;
private readonly StorageFactory _storageFactory;
private readonly StorageFactoryConfig _storageFactoryConfig;
public FileBackupProvider(ILogger<FileBackupProvider> logger, StorageFactory storageFactory, StorageFactoryConfig storageFactoryConfig)
{
_storageFactory = storageFactory;
_storageFactoryConfig = storageFactoryConfig;
_logger = logger;
}
public FileBackupProvider()
{
_allowedModules = new List<string>() { "forum", "photo", "bookmarking", "wiki", "files", "crm", "projects", "logo", "fckuploaders", "talk" };
}
public event EventHandler<ProgressChangedEventArgs> ProgressChanged;
public IEnumerable<XElement> GetElements(int tenant, string[] configs, IDataWriteOperator writer)
{
InvokeProgressChanged("Saving files...", 0);
var config = GetWebConfig(configs);
var files = ComposeFiles(tenant, config);
var elements = new List<XElement>();
var backupKeys = new List<string>();
var counter = 0;
var totalCount = (double)files.Count();
foreach (var file in files)
{
var backupPath = GetBackupPath(file);
if (!backupKeys.Contains(backupPath))
{
var storage = _storageFactory.GetStorage(config, tenant.ToString(), file.Module);
var errors = 0;
while (true)
{
try
{
using var stream = storage.GetReadStreamAsync(file.Domain, file.Path).Result;
writer.WriteEntry(backupPath, stream);
break;
}
catch (Exception error)
{
errors++;
if (20 < errors)
{
_logger.ErrorCanNotBackupFile(file.Path, error);
break;
}
}
}
elements.Add(file.ToXElement());
backupKeys.Add(backupPath);
_logger.DebugBackupFile(file.Path);
}
InvokeProgressChanged("Saving file " + file.Path, counter++ / totalCount * 100);
}
return elements;
}
public void LoadFrom(IEnumerable<XElement> elements, int tenant, string[] configs, IDataReadOperator dataOperator)
{
InvokeProgressChanged("Restoring files...", 0);
var config = GetWebConfig(configs);
var files = elements.Where(e => e.Name == "file");
double current = 0;
foreach (var file in files)
{
var backupInfo = new FileBackupInfo(file);
if (_allowedModules.Contains(backupInfo.Module))
{
using (var entry = dataOperator.GetEntry(GetBackupPath(backupInfo)))
{
var storage = _storageFactory.GetStorage(config, tenant.ToString(), backupInfo.Module, null);
try
{
storage.SaveAsync(backupInfo.Domain, backupInfo.Path, entry).Wait();
}
catch (Exception error)
{
_logger.ErrorCanNotRestoreFile(file, error);
}
}
InvokeProgressChanged("Restoring file " + backupInfo.Path, current++ / files.Count() * 100);
}
}
}
private IEnumerable<FileBackupInfo> ComposeFiles(int tenant, string config)
{
var files = new List<FileBackupInfo>();
foreach (var module in _storageFactoryConfig.GetModuleList(config))
{
if (_allowedModules.Contains(module))
{
var store = _storageFactory.GetStorage(config, tenant.ToString(), module);
var domainList = _storageFactoryConfig.GetDomainList(config, module);
foreach (var domain in domainList)
{
files.AddRange(store
.ListFilesRelativeAsync(domain, "\\", "*.*", true).ToArrayAsync().Result
.Select(x => new FileBackupInfo(domain, module, x)));
}
files.AddRange(store
.ListFilesRelativeAsync(string.Empty, "\\", "*.*", true).ToArrayAsync().Result
.Where(x => domainList.All(domain => x.IndexOf($"{domain}/") == -1))
.Select(x => new FileBackupInfo(string.Empty, module, x)));
}
}
return files.Distinct();
}
private string GetBackupPath(FileBackupInfo backupInfo)
{
return CrossPlatform.PathCombine(backupInfo.Module, CrossPlatform.PathCombine(backupInfo.Domain, backupInfo.Path.Replace('/', '\\')));
}
private string GetWebConfig(string[] configs)
{
return configs.Where(c => "Web.config".Equals(Path.GetFileName(c), StringComparison.InvariantCultureIgnoreCase)).SingleOrDefault();
}
private void InvokeProgressChanged(string status, double currentProgress)
{
try
{
ProgressChanged?.Invoke(this, new ProgressChangedEventArgs(status, (int)currentProgress));
}
catch (Exception error)
{
_logger.ErrorInvokeProgressChanged(error);
}
}
private class FileBackupInfo
{
public string Module { get; set; }
public string Domain { get; set; }
public string Path { get; set; }
public int Errors { get; set; }
public FileBackupInfo(string domain, string module, string path)
{
Domain = domain;
Module = module;
Path = path;
}
public FileBackupInfo(XElement element)
{
Domain = element.Attribute("domain").Value;
Module = element.Attribute("module").Value;
Path = element.Attribute("path").Value;
}
public XElement ToXElement()
{
return new XElement("file",
new XAttribute("module", Module),
new XAttribute("domain", Domain),
new XAttribute("path", Path)
);
}
public override bool Equals(object obj)
{
if (obj is null)
{
return false;
}
if (ReferenceEquals(this, obj))
{
return true;
}
if (obj.GetType() != typeof(FileBackupInfo))
{
return false;
}
return Equals((FileBackupInfo)obj);
}
public bool Equals(FileBackupInfo other)
{
if (other is null)
{
return false;
}
if (ReferenceEquals(this, other))
{
return true;
}
return Equals(other.Module, Module) && Equals(other.Domain, Domain) && Equals(other.Path, Path);
}
public override int GetHashCode()
{
return HashCode.Combine(Module, Domain, Path);
}
}
}