1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
//
// System.Security.Permissions.KeyContainerPermission.cs
//
// 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.Globalization;
using System.Runtime.InteropServices;
namespace System.Security.Permissions {
[Serializable]
[ComVisible (true)]
public sealed class KeyContainerPermission : CodeAccessPermission, IUnrestrictedPermission, IBuiltInPermission {
private KeyContainerPermissionAccessEntryCollection _accessEntries;
private KeyContainerPermissionFlags _flags;
private const int version = 1;
// Constructors
public KeyContainerPermission (PermissionState state)
{
if (CheckPermissionState (state, true) == PermissionState.Unrestricted) {
_flags = KeyContainerPermissionFlags.AllFlags;
}
}
public KeyContainerPermission (KeyContainerPermissionFlags flags)
{
SetFlags (flags);
}
public KeyContainerPermission (KeyContainerPermissionFlags flags, KeyContainerPermissionAccessEntry[] accessList)
{
SetFlags (flags);
if (accessList != null) {
_accessEntries = new KeyContainerPermissionAccessEntryCollection ();
foreach (KeyContainerPermissionAccessEntry kcpae in accessList) {
_accessEntries.Add (kcpae);
}
}
}
// Properties
public KeyContainerPermissionAccessEntryCollection AccessEntries {
get { return _accessEntries; }
}
public KeyContainerPermissionFlags Flags {
get { return _flags; }
}
// Methods
public override IPermission Copy ()
{
if (_accessEntries.Count == 0)
return new KeyContainerPermission (_flags);
KeyContainerPermissionAccessEntry[] list = new KeyContainerPermissionAccessEntry [_accessEntries.Count];
_accessEntries.CopyTo (list, 0);
return new KeyContainerPermission (_flags, list);
}
[MonoTODO ("(2.0) missing support for AccessEntries")]
public override void FromXml (SecurityElement securityElement)
{
// General validation in CodeAccessPermission
CheckSecurityElement (securityElement, "securityElement", version, version);
// Note: we do not (yet) care about the return value
// as we only accept version 1 (min/max values)
if (IsUnrestricted (securityElement)) {
_flags = KeyContainerPermissionFlags.AllFlags;
}
else {
// ???
_flags = (KeyContainerPermissionFlags) Enum.Parse (
typeof (KeyContainerPermissionFlags), securityElement.Attribute ("Flags"));
}
}
[MonoTODO ("(2.0)")]
public override IPermission Intersect (IPermission target)
{
return null;
}
[MonoTODO ("(2.0)")]
public override bool IsSubsetOf (IPermission target)
{
return false;
}
public bool IsUnrestricted ()
{
return (_flags == KeyContainerPermissionFlags.AllFlags);
}
[MonoTODO ("(2.0) missing support for AccessEntries")]
public override SecurityElement ToXml ()
{
SecurityElement e = Element (version);
if (IsUnrestricted ()) {
e.AddAttribute ("Unrestricted", "true");
} else {
// ...
}
return e;
}
public override IPermission Union (IPermission target)
{
KeyContainerPermission kcp = Cast (target);
if (kcp == null)
return Copy ();
KeyContainerPermissionAccessEntryCollection kcpaec = new KeyContainerPermissionAccessEntryCollection ();
// copy first group
foreach (KeyContainerPermissionAccessEntry kcpae in _accessEntries) {
kcpaec.Add (kcpae);
}
// copy second group...
foreach (KeyContainerPermissionAccessEntry kcpae in kcp._accessEntries) {
// ... but only if not present in first group
if (_accessEntries.IndexOf (kcpae) == -1)
kcpaec.Add (kcpae);
}
if (kcpaec.Count == 0)
return new KeyContainerPermission ((_flags | kcp._flags));
KeyContainerPermissionAccessEntry[] list = new KeyContainerPermissionAccessEntry [kcpaec.Count];
kcpaec.CopyTo (list, 0);
return new KeyContainerPermission ((_flags | kcp._flags), list);
}
// IBuiltInPermission
int IBuiltInPermission.GetTokenIndex ()
{
return (int) BuiltInToken.KeyContainer;
}
// helpers
private void SetFlags (KeyContainerPermissionFlags flags)
{
if ((flags & KeyContainerPermissionFlags.AllFlags) == 0) {
string msg = String.Format (Locale.GetText ("Invalid enum {0}"), flags);
throw new ArgumentException (msg, "KeyContainerPermissionFlags");
}
_flags = flags;
}
private KeyContainerPermission Cast (IPermission target)
{
if (target == null)
return null;
KeyContainerPermission kcp = (target as KeyContainerPermission);
if (kcp == null) {
ThrowInvalidPermission (target, typeof (KeyContainerPermission));
}
return kcp;
}
}
}
|
