Files
duplicati/Duplicati/Library/Backend/FTP/FTPUI.cs
T
kenneth.skovhede@gmail.com 8b7d8c0270 Update issue #500
Status: Fixed
The user is no longer asked to verify the password for the connection

git-svn-id: https://duplicati.googlecode.com/svn/trunk@973 59da171f-624f-0410-aa54-27559c288bec
2011-11-05 14:52:18 +00:00

495 lines
21 KiB
C#

#region Disclaimer / License
// Copyright (C) 2011, Kenneth Skovhede
// http://www.hexad.dk, opensource@hexad.dk
//
// 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
#endregion
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
namespace Duplicati.Library.Backend
{
public partial class FTPUI : UserControl
{
private const string USERNAME = "Username";
private const string PASSWORD = "Password";
private const string HOST = "Host";
private const string FOLDER = "Folder";
private const string PASWORDLESS = "Passwordless";
private const string PORT = "Port";
private const string PASSIVE = "Passive";
private const string USE_SSL = "Use SSL";
private const string ACCEPT_ANY_CERTIFICATE = "Accept Any Server Certificate";
private const string ACCEPT_SPECIFIC_CERTIFICATE = "Accept Specific Server Certificate";
private const string HASTESTED = "UI: HasTested";
private const string HASWARNEDPATH = "UI: HasWarnedPath";
private const string HASWARNEDUSERNAME = "UI: HasWarnedUsername";
private const string HASWARNEDPASSWORD = "UI: HasWarnedPassword";
private const string INITIALPASSWORD = "UI: Temp password";
private bool m_warnedPassword = false;
private bool m_warnedUsername = false;
private bool m_hasTested;
private bool m_warnedPath;
private const string DUPLICATI_ACTION_MARKER = "*duplicati-action*";
private string m_uiAction = null;
private IDictionary<string, string> m_options;
private static System.Text.RegularExpressions.Regex HashRegEx = new System.Text.RegularExpressions.Regex("[^0-9a-fA-F]");
private FTPUI()
{
InitializeComponent();
}
public FTPUI(IDictionary<string, string> options)
: this()
{
m_options = options;
}
internal bool Save(bool validate)
{
SaveSettings();
if (!validate)
return true;
if (!ValidateForm())
return false;
if (!m_hasTested)
switch (MessageBox.Show(this, Interface.CommonStrings.ConfirmTestConnectionQuestion, Application.ProductName, MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question))
{
case DialogResult.Yes:
TestConnection_Click(null, null);
if (!m_hasTested)
return false ;
break;
case DialogResult.No:
break;
default: //Cancel
return false;
}
SaveSettings();
m_options.Remove(INITIALPASSWORD);
return true;
}
void FTPUI_Load(object sender, EventArgs args)
{
LoadSettings();
}
private bool ValidateForm()
{
if (Servername.Text.Trim().Length <= 0)
{
MessageBox.Show(this, Interface.CommonStrings.EmptyServernameError, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Information);
try { Servername.Focus(); }
catch { }
return false;
}
if (!Library.Utility.Utility.IsValidHostname(Servername.Text))
{
MessageBox.Show(this, string.Format(Library.Interface.CommonStrings.InvalidServernameError, Servername.Text), Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Information);
try { Servername.Focus(); }
catch { }
return false;
}
if (Username.Text.Trim().Length <= 0 && !m_warnedUsername)
{
if (MessageBox.Show(this, Interface.CommonStrings.EmptyUsernameWarning, Application.ProductName, MessageBoxButtons.YesNoCancel, MessageBoxIcon.Information) != DialogResult.Yes)
{
try { Username.Focus(); }
catch { }
return false;
}
m_warnedUsername = true;
}
if (Password.Text.Trim().Length <= 0 && !m_warnedPassword)
{
if (MessageBox.Show(this, Interface.CommonStrings.EmptyPasswordWarning, Application.ProductName, MessageBoxButtons.YesNoCancel, MessageBoxIcon.Information) != DialogResult.Yes)
{
try { Password.Focus(); }
catch { }
return false;
}
m_warnedPassword = true;
}
if (UseSSL.Checked && AcceptSpecifiedHash.Checked)
{
if (SpecifiedHash.Text.Trim().Length == 0)
{
MessageBox.Show(this, Strings.FTPUI.EmptyHashError, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Information);
try { SpecifiedHash.Focus(); }
catch { }
return false;
}
if (SpecifiedHash.Text.Length % 2 > 0 || HashRegEx.Match(SpecifiedHash.Text).Success)
{
MessageBox.Show(this, Strings.FTPUI.InvalidHashError, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Information);
try { SpecifiedHash.Focus(); }
catch { }
return false;
}
}
return true;
}
private void SaveSettings()
{
string initialPwd;
bool hasInitial = m_options.TryGetValue(INITIALPASSWORD, out initialPwd);
m_options.Clear();
m_options[HASTESTED] = m_hasTested.ToString();
m_options[HASWARNEDPATH] = m_warnedPath.ToString();
m_options[HASWARNEDUSERNAME] = m_warnedUsername.ToString();
m_options[HASWARNEDPASSWORD] = m_warnedPassword.ToString();
m_options[HOST] = Servername.Text;
m_options[FOLDER] = Path.Text;
m_options[USERNAME] = Username.Text;
m_options[PASSWORD] = Password.Text;
m_options[PORT] = ((int)Port.Value).ToString();
m_options[PASSIVE] = PassiveConnection.Checked.ToString();
m_options[USE_SSL] = UseSSL.Checked.ToString();
m_options[ACCEPT_ANY_CERTIFICATE] = AcceptAnyHash.Checked.ToString();
if (AcceptSpecifiedHash.Checked)
m_options[ACCEPT_SPECIFIC_CERTIFICATE] = SpecifiedHash.Text;
if (hasInitial)
m_options[INITIALPASSWORD] = initialPwd;
if (!string.IsNullOrEmpty(m_uiAction))
m_options.Add(DUPLICATI_ACTION_MARKER, m_uiAction);
}
private void LoadSettings()
{
if (m_options.ContainsKey(HOST))
Servername.Text = m_options[HOST];
if (m_options.ContainsKey(FOLDER))
Path.Text = m_options[FOLDER];
if (m_options.ContainsKey(USERNAME))
Username.Text = m_options[USERNAME];
if (m_options.ContainsKey(PASSWORD))
Password.Text = m_options[PASSWORD];
if (!m_options.ContainsKey(INITIALPASSWORD))
m_options[INITIALPASSWORD] = m_options.ContainsKey(PASSWORD) ? m_options[PASSWORD] : "";
Password.AskToEnterNewPassword = !string.IsNullOrEmpty(m_options[INITIALPASSWORD]);
Password.InitialPassword = m_options[INITIALPASSWORD];
bool b;
if (!m_options.ContainsKey(PASSIVE) || !bool.TryParse(m_options[PASSIVE], out b))
b = false;
PassiveConnection.Checked = b;
int i; ;
if (!m_options.ContainsKey(PORT) || !int.TryParse(m_options[PORT], out i))
i = 21;
Port.Value = i;
bool useSSL;
if (!m_options.ContainsKey(USE_SSL) || !bool.TryParse(m_options[USE_SSL], out useSSL))
useSSL = false;
bool acceptAnyCertificate;
if (!m_options.ContainsKey(ACCEPT_ANY_CERTIFICATE) || !bool.TryParse(m_options[ACCEPT_ANY_CERTIFICATE], out acceptAnyCertificate))
acceptAnyCertificate = false;
UseSSL.Checked = useSSL;
AcceptAnyHash.Checked = acceptAnyCertificate;
if (m_options.ContainsKey(ACCEPT_SPECIFIC_CERTIFICATE))
SpecifiedHash.Text = m_options[ACCEPT_SPECIFIC_CERTIFICATE];
AcceptSpecifiedHash.Checked = !string.IsNullOrEmpty(SpecifiedHash.Text);
//Set internal testing flags
if (!m_options.ContainsKey(HASTESTED) || !bool.TryParse(m_options[HASTESTED], out m_hasTested))
m_hasTested = false;
if (!m_options.ContainsKey(HASWARNEDPATH) || !bool.TryParse(m_options[HASWARNEDPATH], out m_warnedPath))
m_warnedPath = false;
if (!m_options.ContainsKey(HASWARNEDUSERNAME) || !bool.TryParse(m_options[HASWARNEDUSERNAME], out m_warnedUsername))
m_warnedUsername = false;
if (!m_options.ContainsKey(HASWARNEDPASSWORD) || !bool.TryParse(m_options[HASWARNEDPASSWORD], out m_warnedPassword))
m_warnedPassword = false;
m_options.TryGetValue(DUPLICATI_ACTION_MARKER, out m_uiAction);
}
private void TestConnection_Click(object sender, EventArgs e)
{
if (ValidateForm())
{
bool retry = true;
while (retry)
{
retry = false;
Cursor c = this.Cursor;
try
{
this.Cursor = Cursors.WaitCursor;
SaveSettings();
bool existingBackup = false;
Dictionary<string, string> options = new Dictionary<string, string>();
string hostname = GetConfiguration(m_options, options);
using (Duplicati.Library.Modules.Builtin.HttpOptions httpconf = new Duplicati.Library.Modules.Builtin.HttpOptions())
{
httpconf.Configure(options);
using(FTP f = new FTP(hostname, options))
foreach (Interface.IFileEntry n in f.List())
if (n.Name.StartsWith("duplicati-"))
{
existingBackup = true;
break;
}
}
bool isUiAdd = string.IsNullOrEmpty(m_uiAction) || string.Equals(m_uiAction, "add", StringComparison.InvariantCultureIgnoreCase);
if (existingBackup && isUiAdd)
{
if (MessageBox.Show(this, string.Format(Interface.CommonStrings.ExistingBackupDetectedQuestion), Application.ProductName, MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button3) != DialogResult.Yes)
return;
}
else
{
MessageBox.Show(this, Interface.CommonStrings.ConnectionSuccess, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Information);
}
m_hasTested = true;
}
catch (Interface.FolderMissingException)
{
switch (MessageBox.Show(this, Strings.FTPUI.CreateMissingFolderQuestion, Application.ProductName, MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question))
{
case DialogResult.Yes:
CreateFolderButton.PerformClick();
TestConnection.PerformClick();
return;
default:
return;
}
}
catch (Utility.SslCertificateValidator.InvalidCertificateException cex)
{
if (string.IsNullOrEmpty(cex.Certificate))
MessageBox.Show(this, string.Format(Interface.CommonStrings.ConnectionFailure, cex.Message), Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
else
{
if (MessageBox.Show(this, string.Format(Strings.FTPUI.ApproveCertificateHashQuestion, cex.SslError), Application.ProductName, MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1) == DialogResult.Yes)
{
retry = true;
AcceptSpecifiedHash.Checked = true;
SpecifiedHash.Text = cex.Certificate;
}
}
}
catch (Exception ex)
{
MessageBox.Show(this, string.Format(Interface.CommonStrings.ConnectionFailure, ex.Message), Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
this.Cursor = c;
}
}
}
}
private void Port_ValueChanged(object sender, EventArgs e)
{
m_hasTested = false;
}
private void Password_TextChanged(object sender, EventArgs e)
{
m_hasTested = false;
m_warnedPassword = false;
}
private void Username_TextChanged(object sender, EventArgs e)
{
m_hasTested = false;
m_warnedUsername = false;
}
private void Path_TextChanged(object sender, EventArgs e)
{
m_hasTested = false;
m_warnedPath = false;
}
private void Servername_TextChanged(object sender, EventArgs e)
{
m_hasTested = false;
}
private void PassiveConnection_CheckedChanged(object sender, EventArgs e)
{
m_hasTested = false;
}
private void CreateFolderButton_Click(object sender, EventArgs e)
{
if (ValidateForm())
{
bool retry = true;
while (retry)
{
retry = false;
Cursor c = this.Cursor;
try
{
this.Cursor = Cursors.WaitCursor;
SaveSettings();
Dictionary<string, string> options = new Dictionary<string, string>();
string hostname = GetConfiguration(m_options, options);
using (Duplicati.Library.Modules.Builtin.HttpOptions httpconf = new Duplicati.Library.Modules.Builtin.HttpOptions())
{
httpconf.Configure(options);
FTP f = new FTP(hostname, options);
f.CreateFolder();
}
MessageBox.Show(this, Interface.CommonStrings.FolderCreated, Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (Utility.SslCertificateValidator.InvalidCertificateException cex)
{
if (string.IsNullOrEmpty(cex.Certificate))
MessageBox.Show(this, string.Format(Interface.CommonStrings.ConnectionFailure, cex.Message), Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
else
{
if (MessageBox.Show(this, string.Format(Strings.FTPUI.ApproveCertificateHashQuestion, cex.SslError), Application.ProductName, MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1) == DialogResult.Yes)
{
retry = true;
AcceptSpecifiedHash.Checked = true;
SpecifiedHash.Text = cex.Certificate;
}
}
}
catch (Exception ex)
{
MessageBox.Show(this, string.Format(Interface.CommonStrings.ConnectionFailure, ex.Message), Application.ProductName, MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
this.Cursor = c;
}
}
}
}
public static string GetConfiguration(IDictionary<string, string> guiOptions, IDictionary<string, string> commandlineOptions)
{
if (guiOptions.ContainsKey(USERNAME) && !string.IsNullOrEmpty(guiOptions[USERNAME]))
commandlineOptions["ftp-username"] = guiOptions[USERNAME];
if (guiOptions.ContainsKey(PASSWORD) && !string.IsNullOrEmpty(guiOptions[PASSWORD]))
commandlineOptions["ftp-password"] = guiOptions[PASSWORD];
bool passive;
if (!guiOptions.ContainsKey(PASSIVE) || !bool.TryParse(guiOptions[PASSIVE], out passive))
passive = false;
if (passive)
commandlineOptions["ftp-passive"] = "";
else
commandlineOptions["ftp-regular"] = "";
int port;
if (!guiOptions.ContainsKey(PORT) || !int.TryParse(guiOptions[PORT], out port) || port < 0)
port = 21;
bool useSSL;
if (!guiOptions.ContainsKey(USE_SSL) || !bool.TryParse(guiOptions[USE_SSL], out useSSL))
useSSL = false;
bool acceptAnyCertificate;
if (!guiOptions.ContainsKey(ACCEPT_ANY_CERTIFICATE) || !bool.TryParse(guiOptions[ACCEPT_ANY_CERTIFICATE], out acceptAnyCertificate))
acceptAnyCertificate = false;
if (useSSL)
commandlineOptions["use-ssl"] = "";
if (acceptAnyCertificate)
commandlineOptions["accept-any-ssl-certificate"] = "";
if (guiOptions.ContainsKey(ACCEPT_SPECIFIC_CERTIFICATE))
commandlineOptions["accept-specified-ssl-hash"] = guiOptions[ACCEPT_SPECIFIC_CERTIFICATE];
if (!guiOptions.ContainsKey(HOST))
throw new Exception(string.Format(Interface.CommonStrings.ConfigurationIsMissingItemError, FOLDER));
return "ftp://" + guiOptions[HOST] + ":" + port.ToString() + "/" + (guiOptions.ContainsKey(FOLDER) ? guiOptions[FOLDER] : "");
}
public static string PageTitle
{
get { return Strings.FTPUI.PageTitle; }
}
public static string PageDescription
{
get { return Strings.FTPUI.PageDescription; }
}
private void UseSSL_CheckedChanged(object sender, EventArgs e)
{
SSLGroup.Enabled = UseSSL.Checked;
m_hasTested = false;
}
private void AcceptSpecifiedHash_CheckedChanged(object sender, EventArgs e)
{
SpecifiedHash.Enabled = AcceptSpecifiedHash.Checked;
m_hasTested = false;
}
private void AcceptAnyHash_CheckedChanged(object sender, EventArgs e)
{
m_hasTested = false;
}
}
}