263 lines
10 KiB
C#
263 lines
10 KiB
C#
/*
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*
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* (c) Copyright Ascensio System Limited 2010-2020
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*
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* This program is freeware. You can redistribute it and/or modify it under the terms of the GNU
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* General Public License (GPL) version 3 as published by the Free Software Foundation (https://www.gnu.org/copyleft/gpl.html).
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* In accordance with Section 7(a) of the GNU GPL its Section 15 shall be amended to the effect that
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* Ascensio System SIA expressly excludes the warranty of non-infringement of any third-party rights.
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*
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* THIS PROGRAM IS DISTRIBUTED WITHOUT ANY WARRANTY; WITHOUT EVEN THE IMPLIED WARRANTY OF MERCHANTABILITY OR
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* FITNESS FOR A PARTICULAR PURPOSE. For more details, see GNU GPL at https://www.gnu.org/copyleft/gpl.html
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*
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* You can contact Ascensio System SIA by email at sales@onlyoffice.com
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*
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* The interactive user interfaces in modified source and object code versions of ONLYOFFICE must display
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* Appropriate Legal Notices, as required under Section 5 of the GNU GPL version 3.
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*
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* Pursuant to Section 7 § 3(b) of the GNU GPL you must retain the original ONLYOFFICE logo which contains
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* relevant author attributions when distributing the software. If the display of the logo in its graphic
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* form is not reasonably feasible for technical reasons, you must include the words "Powered by ONLYOFFICE"
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* in every copy of the program you distribute.
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* Pursuant to Section 7 § 3(e) we decline to grant you any rights under trademark law for use of our trademarks.
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*
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Xml.Linq;
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using ASC.Common.Logging;
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using ASC.Data.Storage;
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using Microsoft.Extensions.Options;
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namespace ASC.Data.Backup
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{
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public class FileBackupProvider : IBackupProvider
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{
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private readonly IEnumerable<string> allowedModules;
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private readonly ILog log;
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private readonly StorageFactory storageFactory;
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private readonly StorageFactoryConfig storageFactoryConfig;
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public FileBackupProvider(IOptionsMonitor<ILog> options, StorageFactory storageFactory, StorageFactoryConfig storageFactoryConfig)
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{
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this.storageFactory = storageFactory;
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this.storageFactoryConfig = storageFactoryConfig;
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log = options.CurrentValue;
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}
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public string Name
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{
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get { return "Files"; }
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}
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public FileBackupProvider()
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{
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allowedModules = new List<string>() { "forum", "photo", "bookmarking", "wiki", "files", "crm", "projects", "logo", "fckuploaders", "talk" };
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}
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public IEnumerable<XElement> GetElements(int tenant, string[] configs, IDataWriteOperator writer)
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{
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InvokeProgressChanged("Saving files...", 0);
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var config = GetWebConfig(configs);
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var files = ComposeFiles(tenant, config);
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var elements = new List<XElement>();
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var backupKeys = new List<string>();
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var counter = 0;
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var totalCount = (double)files.Count();
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foreach (var file in files)
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{
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var backupPath = GetBackupPath(file);
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if (!backupKeys.Contains(backupPath))
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{
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var storage = storageFactory.GetStorage(config, tenant.ToString(), file.Module);
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var errors = 0;
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while (true)
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{
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try
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{
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using (var stream = storage.GetReadStream(file.Domain, file.Path))
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{
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var tmpPath = Path.GetTempFileName();
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using (var tmpFile = File.OpenWrite(tmpPath))
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{
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stream.CopyTo(tmpFile);
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}
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writer.WriteEntry(backupPath, tmpPath);
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File.Delete(tmpPath);
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}
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break;
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}
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catch (Exception error)
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{
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errors++;
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if (20 < errors)
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{
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log.ErrorFormat("Can not backup file {0}: {1}", file.Path, error);
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break;
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}
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}
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}
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elements.Add(file.ToXElement());
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backupKeys.Add(backupPath);
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log.DebugFormat("Backup file {0}", file.Path);
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}
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InvokeProgressChanged("Saving file " + file.Path, counter++ / totalCount * 100);
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}
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return elements;
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}
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private IEnumerable<FileBackupInfo> ComposeFiles(int tenant, string config)
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{
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var files = new List<FileBackupInfo>();
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foreach (var module in storageFactoryConfig.GetModuleList(config))
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{
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if (allowedModules.Contains(module))
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{
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var store = storageFactory.GetStorage(config, tenant.ToString(), module);
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var domainList = storageFactoryConfig.GetDomainList(config, module);
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foreach (var domain in domainList)
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{
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files.AddRange(store
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.ListFilesRelative(domain, "\\", "*.*", true)
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.Select(x => new FileBackupInfo(domain, module, x)));
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}
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files.AddRange(store
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.ListFilesRelative(string.Empty, "\\", "*.*", true)
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.Where(x => domainList.All(domain => x.IndexOf(string.Format("{0}/", domain)) == -1))
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.Select(x => new FileBackupInfo(string.Empty, module, x)));
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}
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}
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return files.Distinct();
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}
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private string GetBackupPath(FileBackupInfo backupInfo)
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{
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return Path.Combine(backupInfo.Module, Path.Combine(backupInfo.Domain, backupInfo.Path.Replace('/', '\\')));
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}
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public void LoadFrom(IEnumerable<XElement> elements, int tenant, string[] configs, IDataReadOperator dataOperator)
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{
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InvokeProgressChanged("Restoring files...", 0);
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var config = GetWebConfig(configs);
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var files = elements.Where(e => e.Name == "file");
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double current = 0;
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foreach (var file in files)
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{
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var backupInfo = new FileBackupInfo(file);
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if (allowedModules.Contains(backupInfo.Module))
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{
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using (var entry = dataOperator.GetEntry(GetBackupPath(backupInfo)))
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{
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var storage = storageFactory.GetStorage(config, tenant.ToString(), backupInfo.Module, null);
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try
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{
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storage.Save(backupInfo.Domain, backupInfo.Path, entry);
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}
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catch (Exception error)
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{
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log.ErrorFormat("Can not restore file {0}: {1}", file, error);
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}
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}
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InvokeProgressChanged("Restoring file " + backupInfo.Path, current++ / files.Count() * 100);
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}
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}
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}
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private string GetWebConfig(string[] configs)
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{
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return configs.Where(c => "Web.config".Equals(Path.GetFileName(c), StringComparison.InvariantCultureIgnoreCase)).SingleOrDefault();
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}
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public event EventHandler<ProgressChangedEventArgs> ProgressChanged;
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private void InvokeProgressChanged(string status, double currentProgress)
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{
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try
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{
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var @delegate = ProgressChanged;
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if (@delegate != null) @delegate(this, new ProgressChangedEventArgs(status, (int)currentProgress));
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}
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catch (Exception error)
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{
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log.Error("InvokeProgressChanged", error);
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}
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}
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private class FileBackupInfo
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{
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public string Module { get; set; }
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public string Domain { get; set; }
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public string Path { get; set; }
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public int Errors { get; set; }
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public FileBackupInfo(string domain, string module, string path)
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{
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Domain = domain;
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Module = module;
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Path = path;
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}
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public FileBackupInfo(XElement element)
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{
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Domain = element.Attribute("domain").Value;
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Module = element.Attribute("module").Value;
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Path = element.Attribute("path").Value;
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}
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public XElement ToXElement()
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{
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return new XElement("file",
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new XAttribute("module", Module),
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new XAttribute("domain", Domain),
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new XAttribute("path", Path)
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);
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}
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public override bool Equals(object obj)
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{
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if (ReferenceEquals(null, obj)) return false;
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if (ReferenceEquals(this, obj)) return true;
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if (obj.GetType() != typeof(FileBackupInfo)) return false;
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return Equals((FileBackupInfo)obj);
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}
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public bool Equals(FileBackupInfo other)
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{
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if (ReferenceEquals(null, other)) return false;
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if (ReferenceEquals(this, other)) return true;
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return Equals(other.Module, Module) && Equals(other.Domain, Domain) && Equals(other.Path, Path);
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}
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public override int GetHashCode()
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{
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unchecked
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{
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int result = (Module != null ? Module.GetHashCode() : 0);
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result = (result * 397) ^ (Domain != null ? Domain.GetHashCode() : 0);
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result = (result * 397) ^ (Path != null ? Path.GetHashCode() : 0);
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return result;
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}
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}
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}
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}
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} |