Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web.Services/System/Web/Services/Protocols/RuntimeUtils.cs

@@ -0,0 +1,98 @@
+//------------------------------------------------------------------------------
+// <copyright file="WsRuntime.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.Services.Protocols {
+    using System.Web.Services;
+    using System.Xml;
+    using System.Xml.Schema;
+    using System.Xml.Serialization;
+    using System;
+    using System.Text;
+    using System.IO;
+    using System.ComponentModel;
+    using System.Globalization;
+    using System.Web.Services.Diagnostics;
+
+    internal class RuntimeUtils {
+        private RuntimeUtils() { }
+
+        internal static XmlDeserializationEvents GetDeserializationEvents() {
+            XmlDeserializationEvents events = new XmlDeserializationEvents();
+            events.OnUnknownElement = new XmlElementEventHandler(OnUnknownElement);
+            events.OnUnknownAttribute = new XmlAttributeEventHandler(OnUnknownAttribute);
+            return events;
+        }
+
+        static void OnUnknownAttribute(object sender, XmlAttributeEventArgs e) {
+            if (e.Attr == null)
+                return;
+            // ignore attributes from known namepsaces
+            if (IsKnownNamespace(e.Attr.NamespaceURI))
+                return;
+            Tracing.OnUnknownAttribute(sender, e);
+            if (e.ExpectedAttributes == null)
+                throw new InvalidOperationException(Res.GetString(Res.WebUnknownAttribute, e.Attr.Name, e.Attr.Value));
+            else if (e.ExpectedAttributes.Length == 0)
+                throw new InvalidOperationException(Res.GetString(Res.WebUnknownAttribute2, e.Attr.Name, e.Attr.Value));
+            else
+                throw new InvalidOperationException(Res.GetString(Res.WebUnknownAttribute3, e.Attr.Name, e.Attr.Value, e.ExpectedAttributes));
+        }
+
+        internal static string ElementString(XmlElement element) {
+            StringWriter xml = new StringWriter(CultureInfo.InvariantCulture);
+            xml.Write("<");
+            xml.Write(element.Name);
+            if (element.NamespaceURI != null && element.NamespaceURI.Length > 0) {
+                xml.Write(" xmlns");
+                if (element.Prefix != null && element.Prefix.Length > 0) {
+                    xml.Write(":");
+                    xml.Write(element.Prefix);
+                }
+                xml.Write("='");
+                xml.Write(element.NamespaceURI);
+                xml.Write("'");
+            }
+            xml.Write(">..</");
+            xml.Write(element.Name);
+            xml.Write(">");
+
+            return xml.ToString();
+        }
+
+        internal static void OnUnknownElement(object sender, XmlElementEventArgs e) {
+            if (e.Element == null)
+                return;
+            string xml = RuntimeUtils.ElementString(e.Element);
+            Tracing.OnUnknownElement(sender, e);
+            if (e.ExpectedElements == null)
+                throw new InvalidOperationException(Res.GetString(Res.WebUnknownElement, xml));
+            else if (e.ExpectedElements.Length == 0)
+                throw new InvalidOperationException(Res.GetString(Res.WebUnknownElement1, xml));
+            else
+                throw new InvalidOperationException(Res.GetString(Res.WebUnknownElement2, xml, e.ExpectedElements));
+        }
+
+        internal static bool IsKnownNamespace(string ns) {
+            if (ns == XmlSchema.InstanceNamespace)
+                return true;
+            if (ns == Soap.XmlNamespace)
+                return true;
+            if (ns == Soap.Encoding || ns == Soap.Namespace)
+                return true;
+            if (ns == Soap12.Namespace || ns == Soap12.Encoding || ns == Soap12.RpcNamespace)
+                return true;
+            return false;
+        }
+
+        internal static string EscapeUri(Uri uri) {
+            if (null == uri) {
+                throw new ArgumentNullException("uri");
+            }
+
+            return uri.GetComponents(UriComponents.SerializationInfoString, UriFormat.UriEscaped).Replace("#", "%23");
+        }
+    }
+}