mirror of
https://github.com/xcp-ng/xenadmin.git
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7c0bc50b4a
Inc. Signed-off-by: Gabor Apati-Nagy<gabor.apati-nagy@citrix.com>
125 lines
5.5 KiB
C#
125 lines
5.5 KiB
C#
/* 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.Text;
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using System.Windows.Forms;
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using XenAdmin.Network;
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using XenAPI;
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using XenAdmin.Core;
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using XenAdmin.Dialogs;
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using System.Drawing;
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namespace XenAdmin.Commands
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{
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// The only difference between a CrossConnectionCommand and a Command is that
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// it first checks that the user can do the necessary operation on all the
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// connections, and if not, it throws a dialog and gives up.
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//
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// At the moment, this does a very basic check, which is good enough for folders and tags:
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// it just checks that the user has better than Read Only access on all affected objects.
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// This breaks the abstraction in the Role code, but to calculate exactly which operations
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// are required on which objects is quite complicated (although it will probably become
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// necessary when we have more granular RBAC).
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internal abstract class CrossConnectionCommand : Command
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{
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// All the constructors just pass their arguments through to the base constructor
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protected CrossConnectionCommand() : base() {}
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protected CrossConnectionCommand(IMainWindow mainWindow) : base(mainWindow) {}
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protected CrossConnectionCommand(IMainWindow mainWindow, IEnumerable<SelectedItem> selection) : base(mainWindow, selection) {}
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protected CrossConnectionCommand(IMainWindow mainWindow, IXenObject selection) : base(mainWindow, selection) {}
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protected override bool Confirm()
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{
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List<IXenConnection> failedConnections = FailedConnections();
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if (failedConnections.Count > 0)
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{
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if (!Program.RunInAutomatedTestMode)
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using (var dlg = new ThreeButtonDialog(
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new ThreeButtonDialog.Details(
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SystemIcons.Error,
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MessageBoxMessage(failedConnections),
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Messages.PERMISSION_DENIED)))
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{
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dlg.ShowDialog(Program.MainWindow);
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}
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return false; // returning false stops the command from proceeding
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}
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else
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return base.Confirm();
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}
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/// <returns>The list of connections that we didn't have permission on</returns>
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private List<IXenConnection> FailedConnections()
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{
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Dictionary<IXenConnection, bool> allConnections = new Dictionary<IXenConnection, bool>();
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foreach (IXenObject o in GetAffectedObjects())
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allConnections[o.Connection] = true;
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List<IXenConnection> failedConnections = new List<IXenConnection>();
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foreach (IXenConnection connection in allConnections.Keys)
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{
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if (IsReadOnly(connection))
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failedConnections.Add(connection);
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}
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return failedConnections;
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}
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/// <summary>
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/// Find the list of connections to operate on.
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/// </summary>
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protected abstract List<IXenObject> GetAffectedObjects();
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/// <summary>
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/// Is the user Read Only on this connection? This should not normally be used:
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/// use the code in Role.cs instead, which is more abstract.
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/// </summary>
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public static bool IsReadOnly(IXenConnection connection)
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{
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return connection.Session.Roles.Find(
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delegate(Role r) { return r.name_label.ToLowerInvariant() == Role.MR_ROLE_READ_ONLY; })
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!= null;
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}
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private string MessageBoxMessage(List<IXenConnection> connections)
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{
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if (connections.Count == 1)
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return string.Format(Messages.READ_ONLY_ON_SINGULAR, Helpers.GetName(connections[0]));
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else
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return string.Format(Messages.READ_ONLY_ON_PLURAL,
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Helpers.StringifyList(connections.ConvertAll<string>(delegate(IXenConnection c) { return Helpers.GetName(c); })));
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}
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}
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}
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