87 lines
3.2 KiB
C#
87 lines
3.2 KiB
C#
//
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// System.Security.Policy.MembershipConditionHelper.cs
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//
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// Authors:
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// Ajay kumar Dwivedi (adwiv@yahoo.com)
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// Jackson Harper (jackson@ximian.com)
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// Sebastien Pouliot <sebastien@ximian.com>
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//
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// (C) 2002 Jackson Harper, All rights reserved
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// Copyright (C) 2004 Novell, Inc (http://www.novell.com)
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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namespace System.Security.Policy {
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internal sealed class MembershipConditionHelper {
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private static readonly string XmlTag = "IMembershipCondition";
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internal static int CheckSecurityElement (SecurityElement se, string parameterName, int minimumVersion, int maximumVersion)
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{
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if (se == null)
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throw new ArgumentNullException (parameterName);
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// Tag is case-sensitive
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if (se.Tag != XmlTag) {
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string msg = String.Format (Locale.GetText ("Invalid tag {0}, expected {1}."), se.Tag, XmlTag);
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throw new ArgumentException (msg, parameterName);
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}
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// Note: we do not care about the class attribute at
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// this stage (in fact we don't even if the class
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// attribute is present or not). Anyway the object has
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// already be created, with success, if we're loading it
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// we assume minimum version if no version number is supplied
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int version = minimumVersion;
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string v = se.Attribute ("version");
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if (v != null) {
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try {
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version = Int32.Parse (v);
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}
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catch (Exception e) {
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string msg = Locale.GetText ("Couldn't parse version from '{0}'.");
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msg = String.Format (msg, v);
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throw new ArgumentException (msg, parameterName, e);
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}
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}
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/* if ((version < minimumVersion) || (version > maximumVersion)) {
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string msg = Locale.GetText ("Unknown version '{0}', expected versions between ['{1}','{2}'].");
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msg = String.Format (msg, version, minimumVersion, maximumVersion);
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throw new ArgumentException (msg, parameterName);
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}*/
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return version;
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}
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// snippet moved from FileIOPermission (nickd) to be reused in all derived classes
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internal static SecurityElement Element (Type type, int version)
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{
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SecurityElement se = new SecurityElement (XmlTag);
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se.AddAttribute ("class", type.FullName + ", " + type.Assembly.ToString ().Replace ('\"', '\''));
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se.AddAttribute ("version", version.ToString ());
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return se;
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}
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}
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}
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