kenneth.skovhede@gmail.com
a40f6acf37
This was based on the idea that the interfaces should remain static. I hope this change is enough to ensure stable interfaces until release 1.2. Overview of changes: Moved all interfaces into the same dll. Encryption and compression is now plugable modules, just as the backends. Encryption/compression can now register an UI. Encryption now uses AESCrypt as a default. GPG does not default to using the --armor option. Added support for generic modules, but none are written yet. Added support for plugable settings pages in the "Options" dialog. Fixed issue #148. Duplicati now uses AESCrypt as the default encryption format. Fixed issue #199. GPG now supports custom commandline options. Fixed issue #207. Encryption modules are now plugable. Fixed issue #118. S3 credentials are now stored. Fixed issue #151. Backends can now register system wide options. git-svn-id: https://duplicati.googlecode.com/svn/trunk@427 59da171f-624f-0410-aa54-27559c288bec
400 lines
16 KiB
C#
400 lines
16 KiB
C#
#region Disclaimer / License
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// Copyright (C) 2010, Kenneth Skovhede
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// http://www.hexad.dk, opensource@hexad.dk
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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#endregion
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Text.RegularExpressions;
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using Duplicati.Library.Interface;
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namespace Duplicati.Library.Backend
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{
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public class FTP : IStreamingBackend, IBackendGUI
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{
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private System.Net.NetworkCredential m_userInfo;
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private string m_url;
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Dictionary<string, string> m_options;
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private bool m_acceptAllCertificates = false;
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private string m_acceptCertificateHash = null;
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private bool m_useSSL = false;
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public FTP()
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{
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}
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public FTP(string url, Dictionary<string, string> options)
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{
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Uri u = new Uri(url);
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if (!string.IsNullOrEmpty(u.UserInfo))
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{
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m_userInfo = new System.Net.NetworkCredential();
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if (u.UserInfo.IndexOf(":") >= 0)
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{
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m_userInfo.UserName = u.UserInfo.Substring(0, u.UserInfo.IndexOf(":"));
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m_userInfo.Password = u.UserInfo.Substring(u.UserInfo.IndexOf(":") + 1);
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}
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else
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{
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m_userInfo.UserName = u.UserInfo;
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if (options.ContainsKey("ftp-password"))
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m_userInfo.Password = options["ftp-password"];
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}
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}
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else
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{
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if (options.ContainsKey("ftp-username"))
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{
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m_userInfo = new System.Net.NetworkCredential();
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m_userInfo.UserName = options["ftp-username"];
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if (options.ContainsKey("ftp-password"))
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m_userInfo.Password = options["ftp-password"];
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}
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}
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m_useSSL = options.ContainsKey("use-ssl");
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m_acceptAllCertificates = options.ContainsKey("accept-any-ssl-certificate");
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if (options.ContainsKey("accept-specified-ssl-hash"))
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m_acceptCertificateHash = options["accept-specified-ssl-hash"];
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m_options = options;
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m_url = url;
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if (!m_url.EndsWith("/"))
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m_url += "/";
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}
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#region Regular expression to parse list lines
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//Regexps found here: http://www.dotnetfunda.com/articles/article125.aspx
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//Modified to allow hyphens in username and groupname
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internal readonly static Regex[] PARSEFORMATS =
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{
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new Regex(@"(?<dir>[\-d])(?<permission>([\-r][\-w][\-xs]){3})\s+\d+\s+(?<groupname>\S+)\s+(?<username>\S+)\s+(?<size>\d+)\s+(?<timestamp>\w+\s+\d+\s+\d{4})\s+(?<name>.+)"),
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new Regex(@"(?<dir>[\-d])(?<permission>([\-r][\-w][\-xs]){3})\s+(?<groupname>\d+)\s+(?<username>\d+)\s+(?<size>\d+)\s+(?<timestamp>\w+\s+\d+\s+\d{4})\s+(?<name>.+)"),
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new Regex(@"(?<dir>[\-d])(?<permission>([\-r][\-w][\-xs]){3})\s+(?<groupname>\d+)\s+(?<username>\d+)\s+(?<size>\d+)\s+(?<timestamp>\w+\s+\d+\s+\d{1,2}:\d{2})\s+(?<name>.+)"),
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new Regex(@"(?<dir>[\-d])(?<permission>([\-r][\-w][\-xs]){3})\s+\d+\s+(?<groupname>\S+)\s+(?<username>\S+)\s+(?<size>\d+)\s+(?<timestamp>\w+\s+\d+\s+\d{1,2}:\d{2})\s+(?<name>.+)"),
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new Regex(@"(?<dir>[\-d])(?<permission>([\-r][\-w][\-xs]){3})(\s+)(?<size>(\d+))(\s+)(?<ctbit>(\w+\s\w+))(\s+)(?<size2>(\d+))\s+(?<timestamp>\w+\s+\d+\s+\d{2}:\d{2})\s+(?<name>.+)"),
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new Regex(@"(?<timestamp>\d{2}\-\d{2}\-\d{2}\s+\d{2}:\d{2}[Aa|Pp][mM])\s+(?<dir>\<\w+\>){0,1}(?<size>\d+){0,1}\s+(?<name>.+)"),
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new Regex(@"([<timestamp>]*\d{2}\-\d{2}\-\d{2}\s+\d{2}:\d{2}[Aa|Pp][mM])\s+([<dir>]*\<\w+\>){0,1}([<size>]*\d+){0,1}\s+([<name>]*.+)")
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};
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#endregion
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private static Match MatchLine(string line)
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{
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Match m = null;
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foreach (Regex s in PARSEFORMATS)
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if ((m = s.Match(line)).Success)
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return m;
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return null;
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}
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public static FileEntry ParseLine(string line)
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{
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Match m = MatchLine(line);
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if (m == null)
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return null;
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FileEntry f = new FileEntry(m.Groups["name"].Value);
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string time = m.Groups["timestamp"].Value;
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string dir = m.Groups["dir"].Value;
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//Unused
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//string permission = m.Groups["permission"].Value;
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if (dir != "" && dir != "-")
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f.IsFolder = true;
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else
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f.Size = long.Parse(m.Groups["size"].Value);
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DateTime t;
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if (DateTime.TryParse(time, out t))
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f.LastAccess = f.LastModification = t;
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return f;
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}
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#region IBackendInterface Members
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public string DisplayName
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{
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get { return Strings.FTPBackend.DisplayName; }
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}
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public string ProtocolKey
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{
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get { return "ftp"; }
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}
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public bool SupportsStreaming
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{
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get { return true; }
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}
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public List<IFileEntry> List()
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{
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using (ActivateCertificateValidator())
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{
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System.Net.FtpWebRequest req = CreateRequest("");
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req.Method = System.Net.WebRequestMethods.Ftp.ListDirectoryDetails;
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req.UseBinary = false;
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try
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{
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List<IFileEntry> lst = new List<IFileEntry>();
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using(System.Net.WebResponse resp = req.GetResponse())
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using(System.IO.Stream rs = resp.GetResponseStream())
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using(System.IO.StreamReader sr = new System.IO.StreamReader(new StreamReadHelper(rs)))
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{
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string line;
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while ((line = sr.ReadLine()) != null)
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{
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FileEntry f = ParseLine(line);
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if (f != null)
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lst.Add(f);
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}
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}
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return lst;
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}
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catch (System.Net.WebException wex)
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{
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if (wex.Response as System.Net.FtpWebResponse != null && (wex.Response as System.Net.FtpWebResponse).StatusCode == System.Net.FtpStatusCode.ActionNotTakenFileUnavailable)
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throw new Interface.FolderMissingException(string.Format(Strings.FTPBackend.MissingFolderError, req.RequestUri.PathAndQuery, wex.Message), wex);
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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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public void Put(string remotename, System.IO.Stream input)
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{
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using (ActivateCertificateValidator())
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{
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System.Net.FtpWebRequest req = CreateRequest(remotename);
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req.Method = System.Net.WebRequestMethods.Ftp.UploadFile;
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req.UseBinary = true;
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//We only depend on the ReadWriteTimeout
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req.Timeout = System.Threading.Timeout.Infinite;
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using (System.IO.Stream rs = req.GetRequestStream())
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Core.Utility.CopyStream(input, rs, true);
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}
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}
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public void Put(string remotename, string localname)
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{
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using (System.IO.FileStream fs = System.IO.File.Open(localname, System.IO.FileMode.Open, System.IO.FileAccess.Read, System.IO.FileShare.Read))
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Put(remotename, fs);
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}
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public void Get(string remotename, System.IO.Stream output)
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{
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using (ActivateCertificateValidator())
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{
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System.Net.FtpWebRequest req = CreateRequest(remotename);
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req.Method = System.Net.WebRequestMethods.Ftp.DownloadFile;
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req.UseBinary = true;
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//We only depend on the ReadWriteTimeout
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req.Timeout = System.Threading.Timeout.Infinite;
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using (System.Net.WebResponse resp = req.GetResponse())
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using (System.IO.Stream rs = resp.GetResponseStream())
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Core.Utility.CopyStream(rs, output, false);
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}
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}
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public void Get(string remotename, string localname)
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{
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using (System.IO.FileStream fs = System.IO.File.Open(localname, System.IO.FileMode.Create, System.IO.FileAccess.Write, System.IO.FileShare.None))
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Get(remotename, fs);
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}
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public void Delete(string remotename)
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{
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using (ActivateCertificateValidator())
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{
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System.Net.FtpWebRequest req = CreateRequest(remotename);
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req.Method = System.Net.WebRequestMethods.Ftp.DeleteFile;
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using (req.GetResponse())
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{ }
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}
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}
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public IList<ICommandLineArgument> SupportedCommands
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{
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get
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{
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return new List<ICommandLineArgument>(new ICommandLineArgument[] {
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new CommandLineArgument("ftp-passive", CommandLineArgument.ArgumentType.Boolean, Strings.FTPBackend.DescriptionFTPPassiveShort, Strings.FTPBackend.DescriptionFTPPassiveLong, "false"),
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new CommandLineArgument("ftp-regular", CommandLineArgument.ArgumentType.Boolean, Strings.FTPBackend.DescriptionFTPActiveShort, Strings.FTPBackend.DescriptionFTPActiveLong, "true"),
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new CommandLineArgument("ftp-password", CommandLineArgument.ArgumentType.String, Strings.FTPBackend.DescriptionFTPPasswordShort, Strings.FTPBackend.DescriptionFTPPasswordLong),
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new CommandLineArgument("ftp-username", CommandLineArgument.ArgumentType.String, Strings.FTPBackend.DescriptionFTPUsernameShort, Strings.FTPBackend.DescriptionFTPUsernameLong),
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new CommandLineArgument("integrated-authentication", CommandLineArgument.ArgumentType.Boolean, Strings.FTPBackend.DescriptionIntegratedAuthenticationShort, Strings.FTPBackend.DescriptionIntegratedAuthenticationLong),
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new CommandLineArgument("use-ssl", CommandLineArgument.ArgumentType.Boolean, Strings.FTPBackend.DescriptionUseSSLShort, Strings.FTPBackend.DescriptionUseSSLLong),
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new CommandLineArgument("accept-specified-ssl-hash", CommandLineArgument.ArgumentType.String, Strings.FTPBackend.DescriptionAcceptHashShort, Strings.FTPBackend.DescriptionAcceptHashLong),
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new CommandLineArgument("accept-any-ssl-certificate", CommandLineArgument.ArgumentType.Boolean, Strings.FTPBackend.DescriptionAcceptAnyCertificateShort, Strings.FTPBackend.DescriptionAcceptAnyCertificateLong),
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});
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}
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}
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public string Description
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{
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get
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{
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return Strings.FTPBackend.Description;
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}
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}
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#endregion
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#region IDisposable Members
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public void Dispose()
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{
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if (m_userInfo != null)
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m_userInfo = null;
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if (m_options != null)
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m_options = null;
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}
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#endregion
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private IDisposable ActivateCertificateValidator()
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{
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return m_useSSL ?
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new Core.SslCertificateValidator(m_acceptAllCertificates, m_acceptCertificateHash) :
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null;
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}
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private System.Net.FtpWebRequest CreateRequest(string remotename)
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{
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System.Net.FtpWebRequest req = (System.Net.FtpWebRequest)System.Net.FtpWebRequest.Create(m_url + remotename);
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if (m_userInfo != null)
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req.Credentials = m_userInfo;
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req.KeepAlive = false;
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if (m_options.ContainsKey("ftp-passive"))
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req.UsePassive = true;
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if (m_options.ContainsKey("ftp-regular"))
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req.UsePassive = false;
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if (m_useSSL)
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req.EnableSsl = m_useSSL;
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return req;
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}
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public void CreateFolder()
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{
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using (ActivateCertificateValidator())
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{
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System.Net.FtpWebRequest req = CreateRequest("");
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req.Method = System.Net.WebRequestMethods.Ftp.MakeDirectory;
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req.KeepAlive = false;
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using (req.GetResponse())
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{ }
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}
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}
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#region IBackendGUI Members
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public string PageTitle
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{
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get { return FTPUI.PageTitle; }
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}
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public string PageDescription
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{
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get { return FTPUI.PageDescription; }
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}
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public System.Windows.Forms.Control GetControl(IDictionary<string, string> applicationSettings, IDictionary<string, string> options)
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{
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return new FTPUI(options);
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}
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public void Leave(System.Windows.Forms.Control control)
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{
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((FTPUI)control).Save(false);
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}
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public bool Validate(System.Windows.Forms.Control control)
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{
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return ((FTPUI)control).Save(true);
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}
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public string GetConfiguration(IDictionary<string, string> applicationSettings, IDictionary<string, string> guiOptions, IDictionary<string, string> commandlineOptions)
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{
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return FTPUI.GetConfiguration(guiOptions, commandlineOptions);
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}
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#endregion
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/// <summary>
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/// Private helper class to fix a bug with the StreamReader
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/// </summary>
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private class StreamReadHelper : Core.OverrideableStream
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{
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/// <summary>
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/// Once the stream has returned 0 as the read count it is disposed
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/// in the FtpRequest, and subsequent read requests will throw an ObjectDisposedException
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/// </summary>
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private bool m_empty = false;
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/// <summary>
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/// Basic initialization, just pass the stream to the super class
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/// </summary>
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/// <param name="stream"></param>
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public StreamReadHelper(System.IO.Stream stream)
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: base(stream)
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{
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}
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/// <summary>
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/// Override the read function to make sure that we only return less than the requested amount of data if the stream is exhausted
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/// </summary>
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/// <param name="buffer">The buffer to place data in</param>
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/// <param name="offset">The offset into the buffer to start at</param>
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/// <param name="count">The number of bytes to read</param>
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/// <returns>The number of bytes read</returns>
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public override int Read(byte[] buffer, int offset, int count)
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{
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int readCount = 0;
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int a;
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while(!m_empty && count > 0)
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{
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a = base.Read(buffer, offset, count);
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readCount += a;
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count -= a;
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offset += a;
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m_empty = a == 0;
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}
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return readCount;
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}
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}
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}
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}
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