xenadmin/XenAdmin/Dialogs/AddServerDialog.cs

361 lines
14 KiB
C#
Raw Normal View History

/* Copyright (c) Citrix Systems Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the
* following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Text.RegularExpressions;
using System.Windows.Forms;
using XenAdmin.Core;
using XenAdmin.Network;
using XenAdmin.TestResources;
namespace XenAdmin.Dialogs
{
public partial class AddServerDialog : XenDialogBase
{
protected readonly bool _changedPass;
public event EventHandler<CachePopulatedEventArgs> CachePopulated;
/// <summary>
/// Dialog with defaults taken from an existing IXenConnection
/// </summary>
/// <param name="connection">The IXenConnection from which the values will be taken. May be null, in which case an appropriate new
/// connection will be created when the dialog is completed.</param>
public AddServerDialog(IXenConnection connection, bool changedPass)
: base(connection)
{
_changedPass = changedPass;
InitializeComponent();
PopulateXenServerHosts();
if (connection != null)
{
ServerNameComboBox.Text = connection.HostnameWithPort;
UsernameTextBox.Text = connection.Username;
PasswordTextBox.Text = connection.Password ?? "";
}
// we have an inner table layout panel due to the group box. Align the columns by examining lables sizes
Label[] labels = { UsernameLabel, PasswordLabel, ServerNameLabel };
int biggest = 0;
foreach (Label l in labels)
{
if (l.Width > biggest)
biggest = l.Width;
}
// set the minimum size of one label from each table which will make sure the columns line up
UsernameLabel.MinimumSize = new Size(biggest, UsernameLabel.Height);
ServerNameLabel.MinimumSize = new Size(biggest, ServerNameLabel.Height);
}
protected void PopulateXenServerHosts()
{
AutoCompleteStringCollection history = Settings.GetServerHistory();
string[] historyArray = new string[history.Count];
history.CopyTo(historyArray, 0);
Array.Sort(historyArray, StringUtility.NaturalCompare);
foreach (string serverName in historyArray)
{
if (serverName != null)
ServerNameComboBox.Items.Add(serverName);
}
// Use a clone as the auto-complete source because of CA-38715
AutoCompleteStringCollection historyClone = new AutoCompleteStringCollection();
historyClone.AddRange(historyArray);
ServerNameComboBox.AutoCompleteCustomSource = historyClone;
}
protected virtual void OnCachePopulated(CachePopulatedEventArgs e)
{
EventHandler<CachePopulatedEventArgs> handler = CachePopulated;
if (handler != null)
{
handler(this, e);
}
}
protected void AddServerDialog_Load(object sender, EventArgs e)
{
UpdateText();
CenterToParent();
}
private void AddServerDialog_Shown(object sender, EventArgs e)
{
//Set focus to the password field if there's a connection and a username.
//CA-68596: Focus has to be set when the dialog is shown rather than loaded
//(which happens before it's shown), so a warning can pop up if CapsLock is on
if (!ServerNameComboBox.Enabled && connection != null && !string.IsNullOrEmpty(connection.Username))
{
Win32.SetFocus(PasswordTextBox.Handle);
}
}
protected void UpdateText()
{
if (connection == null)
{
Text = Messages.ADD_NEW_CONNECT_TO;
labelInstructions.Text = Messages.ADD_NEW_ENTER_CREDENTIALS;
labelError.Text = "";
ServerNameComboBox.Enabled = true;
AddButton.Text = Messages.ADD;
}
if (_changedPass && connection.Password == null)
{
Text = Messages.CONNECT_TO_SERVER;
labelInstructions.Text = Messages.CONNECT_TO_SERVER_BLURB;
labelError.Text = "";
ServerNameComboBox.Enabled = false;
AddButton.Text = Messages.CONNECT;
}
else if (_changedPass && connection.ExpectPasswordIsCorrect)
{
// This situation should be rare, it normally comes from logging in a new session after an existing one has been made
// We now use duplicate sessions instead most of the time which don't log in again.
Text = Messages.CONNECT_TO_SERVER;
labelInstructions.Text = Messages.ADDSERVER_PASS_NEW;
labelError.Text = "";
ServerNameComboBox.Enabled = false;
AddButton.Text = Messages.OK;
}
else if (_changedPass) // the password probably hasnt actually changed but we do know the user has typed it in wrong
{
Text = Messages.CONNECT_TO_SERVER;
labelInstructions.Text = Messages.ERROR_CONNECTING_BLURB;
labelError.Text = Messages.ADD_NEW_INCORRECT;
ServerNameComboBox.Enabled = false;
AddButton.Text = Messages.CONNECT;
}
}
public virtual void AddButton_Click(object sender, EventArgs e)
{
string hostnameAndPort = ServerNameComboBox.Text.Trim();
string username = UsernameTextBox.Text.Trim();
string password = PasswordTextBox.Text;
string[] multipleHosts;
if (TryGetMultipleHosts(hostnameAndPort, out multipleHosts))
{
foreach (string h in multipleHosts)
{
ConnectToServer(null, h, ConnectionsManager.DEFAULT_XEN_PORT, username, password, comboBoxClouds.SelectedItem != null ? comboBoxClouds.SelectedItem.ToString() : string.Empty);
}
}
else
{
string hostname;
int port;
if (!StringUtility.TryParseHostname(hostnameAndPort, ConnectionsManager.DEFAULT_XEN_PORT, out hostname, out port))
{
hostname = hostnameAndPort;
port = ConnectionsManager.DEFAULT_XEN_PORT;
}
ConnectToServer(connection, hostname, port, username, password, comboBoxClouds.SelectedItem != null ? comboBoxClouds.SelectedItem.ToString() : string.Empty);
}
Close();
}
/// <param name="connection">May be null, in which case a new connection will be created</param>
protected void ConnectToServer(IXenConnection conn, string hostname, int port, string username, string password, string version)
{
if (conn == null)
{
XenConnection connection = new XenConnection();
connection.CachePopulated += conn_CachePopulated;
connection.fromDialog = true;
conn = connection;
}
else if (!_changedPass)
{
conn.EndConnect(); // in case we're already connected
}
conn.Hostname = hostname;
conn.Port = port;
conn.Username = username;
conn.Password = password;
conn.ExpectPasswordIsCorrect = false;
conn.Version = version;
if (!_changedPass)
XenConnectionUI.BeginConnect(conn, true, Owner, false);
}
private void conn_CachePopulated(object sender, EventArgs e)
{
IXenConnection connection = (IXenConnection)sender;
connection.CachePopulated -= conn_CachePopulated;
OnCachePopulated(new CachePopulatedEventArgs(connection));
}
private void CancelButton2_Click(object sender, EventArgs e)
{
Close();
}
private void TextFields_TextChanged(object sender, EventArgs e)
{
UpdateButtons();
}
protected void UpdateButtons()
{
AddButton.Enabled = OKButtonEnabled();
}
protected virtual bool OKButtonEnabled()
{
return ServerNameComboBox.Text.Trim().Length > 0 && UsernameTextBox.Text.Trim().Length > 0;
}
private void CancelButton2_KeyDown(object sender, KeyEventArgs e)
{
if (e.Control || e.Alt)
{
switch (e.KeyCode)
{
case Keys.D1:
Launch(TestResource.Resource.InterestingProduction);
break;
case Keys.D2:
Launch(TestResource.Resource.InterestingDevelopment);
break;
case Keys.D3:
Launch(TestResource.Resource.InterestingXenApp);
break;
case Keys.D4:
Launch(TestResource.Resource.Credits);
break;
default:
break;
}
}
}
private void Launch(TestResource.Resource r)
{
ServerNameComboBox.Text = TestResource.Location(r);
AddButton_Click(this, null);
}
/// <summary>
/// Used for testing. Parses text for a semi-colon separated list of files that are loaded by DbProxy.
/// </summary>
/// <param name="text">The text to be parsed</param>
/// <param name="hosts">The parse results</param>
/// <returns>A value indicating whether the operation succeeded.</returns>
private static bool TryGetMultipleHosts(string text, out string[] hosts)
{
hosts = new string[0];
string[] splitStr = text.Split(new char[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
if (splitStr.Length > 0)
{
List<string> hostList = new List<string>();
foreach (string element in splitStr)
{
string host = element.Trim();
if (string.IsNullOrEmpty(host))
// ignore "empty" entry
continue;
if (Regex.IsMatch(host, @"^[A-Za-z]\:\\") && File.Exists(host))
{
// is a file
hostList.Add(host);
continue;
}
if (Regex.IsMatch(host, @"^http\:|^[A-Za-z]\:"))
{
Uri uri;
if (Uri.TryCreate(host, UriKind.Absolute, out uri))
{
hostList.Add(host);
continue;
}
}
else
{
// some sort of ip address or hostname, just add
hostList.Add(host);
}
}
if (hostList.Count < 2)
{
return false;
}
hosts = hostList.ToArray();
return true;
}
return false;
}
private void labelError_TextChanged(object sender, EventArgs e)
{
pictureBoxError.Visible = labelError.Visible = (labelError.Text != "");
}
}
public class CachePopulatedEventArgs : EventArgs
{
private readonly IXenConnection _connection;
public CachePopulatedEventArgs(IXenConnection connection)
{
Util.ThrowIfParameterNull(connection, "connection");
_connection = connection;
}
public IXenConnection Connection
{
get
{
return _connection;
}
}
}
}