HostProtectionAttribute.cs :  » 2.6.4-mono-.net-core » System.Security » System » Security » Permissions » C# / CSharp Open Source

//
// System.Security.Permissions.HostProtectionAttribute class
//
// Author:
//  Sebastien Pouliot  <sebastien@ximian.com>
//
// Copyright (C) 2004-2005 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
// 
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//

using System.Runtime.InteropServices;

namespace System.Security.Permissions{

  [AttributeUsage (AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Struct |
    AttributeTargets.Constructor | AttributeTargets.Method | AttributeTargets.Delegate, 
    AllowMultiple = true, Inherited = false)]
  [ComVisible (true)]
  [Serializable]
  public sealed class HostProtectionAttribute : CodeAccessSecurityAttribute {

    private HostProtectionResource _resources;

    public HostProtectionAttribute ()
      : base (SecurityAction.LinkDemand) 
    {
    }

    public HostProtectionAttribute (SecurityAction action)
      : base (action) 
    {
      if (action != SecurityAction.LinkDemand) {
        string msg = String.Format (Locale.GetText ("Only {0} is accepted."), SecurityAction.LinkDemand);
        throw new ArgumentException (msg, "action");
      }
    }


    public bool ExternalProcessMgmt {
      get { return ((_resources & HostProtectionResource.ExternalProcessMgmt) != 0); }
      set {
        if (value) {
          _resources |= HostProtectionResource.ExternalProcessMgmt;
        }
        else {
          _resources &= ~HostProtectionResource.ExternalProcessMgmt;
        }
      }
    }

    public bool ExternalThreading {
      get { return ((_resources & HostProtectionResource.ExternalThreading) != 0); }
      set {
        if (value) {
          _resources |= HostProtectionResource.ExternalThreading;
        }
        else {
          _resources &= ~HostProtectionResource.ExternalThreading;
        }
      }
    }

    public bool MayLeakOnAbort {
      get { return ((_resources & HostProtectionResource.MayLeakOnAbort) != 0); }
      set {
        if (value) {
          _resources |= HostProtectionResource.MayLeakOnAbort;
        }
        else {
          _resources &= ~HostProtectionResource.MayLeakOnAbort;
        }
      }
    }

    [ComVisible (true)]
    public bool SecurityInfrastructure {
      get { return ((_resources & HostProtectionResource.SecurityInfrastructure) != 0); }
      set {
        if (value) {
          _resources |= HostProtectionResource.SecurityInfrastructure;
        }
        else {
          _resources &= ~HostProtectionResource.SecurityInfrastructure;
        }
      }
    }

    public bool SelfAffectingProcessMgmt {
      get { return ((_resources & HostProtectionResource.SelfAffectingProcessMgmt) != 0); }
      set {
        if (value) {
          _resources |= HostProtectionResource.SelfAffectingProcessMgmt;
        }
        else {
          _resources &= ~HostProtectionResource.SelfAffectingProcessMgmt;
        }
      }
    }

    public bool SelfAffectingThreading {
      get { return ((_resources & HostProtectionResource.SelfAffectingThreading) != 0); }
      set {
        if (value) {
          _resources |= HostProtectionResource.SelfAffectingThreading;
        }
        else {
          _resources &= ~HostProtectionResource.SelfAffectingThreading;
        }
      }
    }

    public bool SharedState {
      get { return ((_resources & HostProtectionResource.SharedState) != 0); }
      set {
        if (value) {
          _resources |= HostProtectionResource.SharedState;
        }
        else {
          _resources &= ~HostProtectionResource.SharedState;
        }
      }
    }

    public bool Synchronization {
      get { return ((_resources & HostProtectionResource.Synchronization) != 0); }
      set {
        if (value) {
          _resources |= HostProtectionResource.Synchronization;
        }
        else {
          _resources &= ~HostProtectionResource.Synchronization;
        }
      }
    }

    public bool UI {
      get { return ((_resources & HostProtectionResource.UI) != 0); }
      set {
        if (value) {
          _resources |= HostProtectionResource.UI;
        }
        else {
          _resources &= ~HostProtectionResource.UI;
        }
      }
    }

    public HostProtectionResource Resources {
      get { return _resources; }
      set { _resources = value; }
    }


    public override IPermission CreatePermission ()
    {
#if NET_2_1
      return null;
#else
      // looks like permission is internal
      return new HostProtectionPermission (_resources);
#endif
    }
  }
}