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

Hcs.Client/Microsoft/Xades/SPUri.cs

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+// SPUri.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>
+    /// SPUri represents the URL where the copy of the Signature Policy may be
+    /// obtained. The class derives from SigPolicyQualifier.
+    /// </summary>
+    public class SPUri : SigPolicyQualifier
+    {
+        #region Private variables
+        private string uri;
+        #endregion
+
+        #region Public properties
+        /// <summary>
+        /// Uri for the sig policy qualifier
+        /// </summary>
+        public string Uri
+        {
+            get
+            {
+                return this.uri;
+            }
+            set
+            {
+                this.uri = value;
+            }
+        }
+
+        /// <summary>
+        /// Inherited generic element, not used in the SPUri class
+        /// </summary>
+        public override XmlElement AnyXmlElement
+        {
+            get
+            {
+                return null;
+            }
+            set
+            {
+                throw new CryptographicException("Setting AnyXmlElement on a SPUri is not supported");
+            }
+        }
+        #endregion
+
+        #region Constructors
+        /// <summary>
+        /// Default constructor
+        /// </summary>
+        public SPUri()
+        {
+        }
+        #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 (this.uri != null && this.uri != "")
+            {
+                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:SPURI", xmlNamespaceManager);
+
+            this.uri = ((XmlElement)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 retVal;
+
+            creationXmlDocument = new XmlDocument();
+            retVal = creationXmlDocument.CreateElement("xades", "SigPolicyQualifier", XadesSignedXml.XadesNamespaceUri);
+
+            bufferXmlElement = creationXmlDocument.CreateElement("xades", "SPURI", XadesSignedXml.XadesNamespaceUri);
+            bufferXmlElement.InnerText = this.uri;
+            retVal.AppendChild(creationXmlDocument.ImportNode(bufferXmlElement, true));
+
+            return retVal;
+        }
+        #endregion
+    }
+}