1 files changed, 87 insertions, 0 deletions
diff --git a/src/DotNetOpenAuth.OpenId/Xrds/XrdsDocument.cs b/src/DotNetOpenAuth.OpenId/Xrds/XrdsDocument.cs
new file mode 100644
index 0000000..040c994
--- /dev/null
+++ b/src/DotNetOpenAuth.OpenId/Xrds/XrdsDocument.cs
@@ -0,0 +1,87 @@
+//-----------------------------------------------------------------------
+// <copyright file="XrdsDocument.cs" company="Andrew Arnott">
+//     Copyright (c) Andrew Arnott. All rights reserved.
+// </copyright>
+//-----------------------------------------------------------------------
+
+namespace DotNetOpenAuth.Xrds {
+	using System.Collections.Generic;
+	using System.Diagnostics.CodeAnalysis;
+	using System.IO;
+	using System.Linq;
+	using System.Xml;
+	using System.Xml.XPath;
+	using DotNetOpenAuth.Messaging;
+	using DotNetOpenAuth.OpenId;
+
+	/// <summary>
+	/// An XRDS document.
+	/// </summary>
+	internal class XrdsDocument : XrdsNode {
+		/// <summary>
+		/// The namespace used by XML digital signatures.
+		/// </summary>
+		private const string XmlDSigNamespace = "http://www.w3.org/2000/09/xmldsig#";
+
+		/// <summary>
+		/// The namespace used by Google Apps for Domains for OpenID URI templates.
+		/// </summary>
+		private const string GoogleOpenIdNamespace = "http://namespace.google.com/openid/xmlns";
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="XrdsDocument"/> class.
+		/// </summary>
+		/// <param name="xrdsNavigator">The root node of the XRDS document.</param>
+		public XrdsDocument(XPathNavigator xrdsNavigator)
+			: base(xrdsNavigator) {
+			XmlNamespaceResolver.AddNamespace("xrd", XrdsNode.XrdNamespace);
+			XmlNamespaceResolver.AddNamespace("xrds", XrdsNode.XrdsNamespace);
+			XmlNamespaceResolver.AddNamespace("openid10", Protocol.V10.XmlNamespace);
+			XmlNamespaceResolver.AddNamespace("ds", XmlDSigNamespace);
+			XmlNamespaceResolver.AddNamespace("google", GoogleOpenIdNamespace);
+		}
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="XrdsDocument"/> class.
+		/// </summary>
+		/// <param name="reader">The Xml reader positioned at the root node of the XRDS document.</param>
+		public XrdsDocument(XmlReader reader)
+			: this(new XPathDocument(reader).CreateNavigator()) { }
+
+		/// <summary>
+		/// Initializes a new instance of the <see cref="XrdsDocument"/> class.
+		/// </summary>
+		/// <param name="xml">The text that is the XRDS document.</param>
+		[SuppressMessage("Microsoft.Reliability", "CA2000:Dispose objects before losing scope", Justification = "Fixing would decrease readability, and not likely avoid any finalizer on a StringReader anyway.")]
+		public XrdsDocument(string xml)
+			: this(new XPathDocument(new StringReader(xml)).CreateNavigator()) { }
+
+		/// <summary>
+		/// Gets the XRD child elements of the document.
+		/// </summary>
+		public IEnumerable<XrdElement> XrdElements {
+			get {
+				// We may be looking at a full XRDS document (in the case of YADIS discovery)
+				// or we may be looking at just an individual XRD element from a larger document
+				// if we asked xri.net for just one.
+				if (Node.SelectSingleNode("/xrds:XRDS", XmlNamespaceResolver) != null) {
+					foreach (XPathNavigator node in Node.Select("/xrds:XRDS/xrd:XRD", XmlNamespaceResolver)) {
+						yield return new XrdElement(node, this);
+					}
+				} else {
+					XPathNavigator node = Node.SelectSingleNode("/xrd:XRD", XmlNamespaceResolver);
+					if (node != null) {
+						yield return new XrdElement(node, this);
+					}
+				}
+			}
+		}
+
+		/// <summary>
+		/// Gets a value indicating whether all child XRD elements were resolved successfully.
+		/// </summary>
+		internal bool IsXrdResolutionSuccessful {
+			get { return this.XrdElements.All(xrd => xrd.IsXriResolutionSuccessful); }
+		}
+	}
+}