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