2 // System.Security.Permissions.UrlIdentityPermission.cs
5 // Sebastien Pouliot <sebastien@ximian.com>
7 // Copyright (C) 2003 Motus Technologies. http://www.motus.com
8 // Copyright (C) 2004 Novell, Inc (http://www.novell.com)
10 // Permission is hereby granted, free of charge, to any person obtaining
11 // a copy of this software and associated documentation files (the
12 // "Software"), to deal in the Software without restriction, including
13 // without limitation the rights to use, copy, modify, merge, publish,
14 // distribute, sublicense, and/or sell copies of the Software, and to
15 // permit persons to whom the Software is furnished to do so, subject to
16 // the following conditions:
18 // The above copyright notice and this permission notice shall be
19 // included in all copies or substantial portions of the Software.
21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30 using System.Globalization;
32 namespace System.Security.Permissions {
35 public sealed class UrlIdentityPermission : CodeAccessPermission, IBuiltInPermission {
37 private const int version = 1;
41 public UrlIdentityPermission (PermissionState state) : base ()
43 // false == do not allow Unrestricted for Identity Permissions
44 CheckPermissionState (state, false);
47 public UrlIdentityPermission (string site) : base ()
50 throw new ArgumentNullException ("site");
57 throw new NullReferenceException ("Url");
63 public override IPermission Copy ()
65 return new UrlIdentityPermission (url);
68 public override void FromXml (SecurityElement esd)
70 // General validation in CodeAccessPermission
71 CheckSecurityElement (esd, "esd", 1, 1);
72 // Note: we do not (yet) care about the return value
73 // as we only accept version 1 (min/max values)
75 url = esd.Attribute ("Url");
79 public override IPermission Intersect (IPermission target)
81 // if one permission is null (object or url) then there's no intersection
82 // if both are null then intersection is null
83 UrlIdentityPermission uip = Cast (target);
84 if ((uip == null) || (url == null))
95 public override bool IsSubsetOf (IPermission target)
100 public override SecurityElement ToXml ()
102 SecurityElement se = Element (version);
103 se.AddAttribute ("Url", url);
108 public override IPermission Union (IPermission target)
113 // IBuiltInPermission
114 int IBuiltInPermission.GetTokenIndex ()
116 return (int) BuiltInToken.UrlIdentity;
121 private UrlIdentityPermission Cast (IPermission target)
126 UrlIdentityPermission uip = (target as UrlIdentityPermission);
128 ThrowInvalidPermission (target, typeof (UrlIdentityPermission));