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Basic formatting applied. Unnecessary comments have been removed. Suspicious code is covered by TODO.

Hcs.Client/Microsoft/Xades/SPUserNotice.cs

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+// SPUserNotice.cs
+//
+// XAdES Starter Kit for Microsoft .NET 3.5 (and above)
+// 2010 Microsoft France
+// Published under the CECILL-B Free Software license agreement.
+// (http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.txt)
+// 
+// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, 
+// WHETHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED 
+// WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE. 
+// THE ENTIRE RISK OF USE OR RESULTS IN CONNECTION WITH THE USE OF THIS CODE 
+// AND INFORMATION REMAINS WITH THE USER.
+
+using System;
+using System.Security.Cryptography;
+using System.Xml;
+
+namespace Microsoft.Xades
+{
+    /// <summary>
+    /// SPUserNotice element is intended for being displayed whenever the
+    /// signature is validated. The class derives from SigPolicyQualifier.
+    /// </summary>
+    public class SPUserNotice : SigPolicyQualifier
+    {
+        #region Private variables
+        private NoticeRef noticeRef;
+        private string explicitText;
+        #endregion
+
+        #region Public properties
+        /// <summary>
+        /// The NoticeRef element names an organization and identifies by
+        /// numbers a group of textual statements prepared by that organization,
+        /// so that the application could get the explicit notices from a notices file
+        /// </summary>
+        public NoticeRef NoticeRef
+        {
+            get
+            {
+                return this.noticeRef;
+            }
+            set
+            {
+                this.noticeRef = value;
+            }
+        }
+
+        /// <summary>
+        /// The	ExplicitText element contains the text of the notice to be displayed
+        /// </summary>
+        public string ExplicitText
+        {
+            get
+            {
+                return this.explicitText;
+            }
+            set
+            {
+                this.explicitText = value;
+            }
+        }
+
+        /// <summary>
+        /// Inherited generic element, not used in the SPUserNotice class
+        /// </summary>
+        public override XmlElement AnyXmlElement
+        {
+            get
+            {
+                return null;
+            }
+            set
+            {
+                throw new CryptographicException("Setting AnyXmlElement on a SPUserNotice is not supported");
+            }
+        }
+        #endregion
+
+        #region Constructors
+        /// <summary>
+        /// Default constructor
+        /// </summary>
+        public SPUserNotice()
+        {
+            noticeRef = new NoticeRef();
+        }
+        #endregion
+
+        #region Public methods
+        /// <summary>
+        /// Check to see if something has changed in this instance and needs to be serialized
+        /// </summary>
+        /// <returns>Flag indicating if a member needs serialization</returns>
+        public override bool HasChanged()
+        {
+            bool retVal = false;
+
+            if (!String.IsNullOrEmpty(this.explicitText))
+            {
+                retVal = true;
+            }
+
+            if (this.noticeRef != null && this.noticeRef.HasChanged())
+            {
+                retVal = true;
+            }
+
+            return retVal;
+        }
+
+        /// <summary>
+        /// Load state from an XML element
+        /// </summary>
+        /// <param name="xmlElement">XML element containing new state</param>
+        public override void LoadXml(System.Xml.XmlElement xmlElement)
+        {
+            XmlNamespaceManager xmlNamespaceManager;
+            XmlNodeList xmlNodeList;
+
+            if (xmlElement == null)
+            {
+                throw new ArgumentNullException("xmlElement");
+            }
+
+            xmlNamespaceManager = new XmlNamespaceManager(xmlElement.OwnerDocument.NameTable);
+            xmlNamespaceManager.AddNamespace("xsd", XadesSignedXml.XadesNamespaceUri);
+
+            xmlNodeList = xmlElement.SelectNodes("xsd:SPUserNotice/xsd:NoticeRef", xmlNamespaceManager);
+            if (xmlNodeList.Count != 0)
+            {
+                this.noticeRef = new NoticeRef();
+                this.noticeRef.LoadXml((XmlElement)xmlNodeList.Item(0));
+            }
+
+            xmlNodeList = xmlElement.SelectNodes("xsd:SPUserNotice/xsd:ExplicitText", xmlNamespaceManager);
+            if (xmlNodeList.Count != 0)
+            {
+                this.explicitText = xmlNodeList.Item(0).InnerText;
+            }
+        }
+
+        /// <summary>
+        /// Returns the XML representation of the this object
+        /// </summary>
+        /// <returns>XML element containing the state of this object</returns>
+        public override XmlElement GetXml()
+        {
+            XmlDocument creationXmlDocument;
+            XmlElement bufferXmlElement;
+            XmlElement bufferXmlElement2;
+            XmlElement retVal;
+
+            creationXmlDocument = new XmlDocument();
+            retVal = creationXmlDocument.CreateElement("xades", "SigPolicyQualifier", XadesSignedXml.XadesNamespaceUri);
+
+            bufferXmlElement = creationXmlDocument.CreateElement("xades", "SPUserNotice", XadesSignedXml.XadesNamespaceUri);
+            if (this.noticeRef != null && this.noticeRef.HasChanged())
+            {
+                bufferXmlElement.AppendChild(creationXmlDocument.ImportNode(this.noticeRef.GetXml(), true));
+            }
+            if (!String.IsNullOrEmpty(this.explicitText))
+            {
+                bufferXmlElement2 = creationXmlDocument.CreateElement("xades", "ExplicitText", XadesSignedXml.XadesNamespaceUri);
+                bufferXmlElement2.InnerText = this.explicitText;
+                bufferXmlElement.AppendChild(bufferXmlElement2);
+            }
+
+            retVal.AppendChild(creationXmlDocument.ImportNode(bufferXmlElement, true));
+
+            return retVal;
+        }
+        #endregion
+    }
+}