Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/Configuration/ProtocolsConfiguration.cs

@@ -0,0 +1,95 @@
+//------------------------------------------------------------------------------
+// <copyright file="ProtocolsConfiguration.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Web.Configuration {
+
+    using System.IO;
+    using System.Runtime.Serialization.Formatters;
+    using System.Threading;
+    using System.Runtime.InteropServices;
+    using System.ComponentModel;
+    using System.Collections;
+    using System.Configuration;
+    using System.Reflection;
+    using System.Globalization;
+    using System.Web.Hosting;
+    using System.Web.Security;
+    using System.Web.Util;
+    using System.Xml;
+
+    internal class ProtocolsConfiguration {
+
+        private Hashtable _protocolEntries = new Hashtable();
+
+        internal ProtocolsConfiguration(XmlNode section) {
+
+            // process XML section in order and apply the directives
+
+            HandlerBase.CheckForUnrecognizedAttributes(section);
+
+            foreach (XmlNode child in section.ChildNodes) {
+
+                // skip whitespace and comments
+                if (IsIgnorableAlsoCheckForNonElement(child))
+                    continue;
+
+                // process <add> elements
+
+                if (child.Name == "add") {
+                    String id = HandlerBase.RemoveRequiredAttribute(child, "id");
+                    String phType = HandlerBase.RemoveRequiredAttribute(child, "processHandlerType");
+                    String ahType = HandlerBase.RemoveRequiredAttribute(child, "appDomainHandlerType");
+
+                    bool validate = true;
+                    HandlerBase.GetAndRemoveBooleanAttribute(child, "validate", ref validate);
+
+                    HandlerBase.CheckForUnrecognizedAttributes(child);
+                    HandlerBase.CheckForNonCommentChildNodes(child);
+
+                    // check duplicate Id
+                    /* TEMPORARY allow duplicates for easy Indigo machine.config update
+                    if (_protocolEntries[id] != null) {
+                        throw new ConfigurationErrorsException(
+                                        SR.GetString(SR.Dup_protocol_id, id), 
+                                        child);
+                    }
+                    */
+
+                    // add entry
+                    /* TEMPORARY hide errors and ignore bad <add> tags
+                       to let breaking changes through */
+                    try {
+                        _protocolEntries[id] = new ProtocolsConfigurationEntry(
+                            id, phType, ahType, validate, 
+                            ConfigurationErrorsException.GetFilename(child),
+                            ConfigurationErrorsException.GetLineNumber(child));
+                    }
+                    catch {
+                    }
+                }
+                else {
+                    HandlerBase.ThrowUnrecognizedElement(child);
+                }
+            }
+        }
+
+        private bool IsIgnorableAlsoCheckForNonElement(XmlNode node) {
+            if (node.NodeType == XmlNodeType.Comment || node.NodeType == XmlNodeType.Whitespace) {
+                return true;
+            }
+
+            if (node.NodeType != XmlNodeType.Element)
+            {
+                throw new ConfigurationErrorsException(
+                                SR.GetString(SR.Config_base_elements_only),
+                                node);
+            }
+
+            return false;
+        }
+
+    }
+}