1 files changed, 131 insertions, 0 deletions
diff --git a/mcs/class/System.Web/System.Web.Configuration/HttpHandlersSectionHandler.cs b/mcs/class/System.Web/System.Web.Configuration/HttpHandlersSectionHandler.cs
new file mode 100644
index 00000000000..85f573f47ee
--- /dev/null
+++ b/mcs/class/System.Web/System.Web.Configuration/HttpHandlersSectionHandler.cs
@@ -0,0 +1,131 @@
+//
+// System.Web.Configuration.HttpHandlersSectionHandler
+//
+// Authors:
+//	Gonzalo Paniagua Javier (gonzalo@ximian.com)
+//
+// (C) 2002 Ximian, Inc (http://www.ximian.com)
+//
+
+using System.Collections;
+using System.Configuration;
+using System.Xml;
+
+namespace System.Web.Configuration
+{
+	class HttpHandlersSectionHandler : IConfigurationSectionHandler
+	{
+		public virtual object Create (object parent, object configContext, XmlNode section)
+		{
+			HandlerFactoryConfiguration mapper;
+			
+			if (parent is HandlerFactoryConfiguration)
+				mapper = new HandlerFactoryConfiguration ((HandlerFactoryConfiguration) parent);
+			else
+				mapper = new HandlerFactoryConfiguration ();
+			
+			if (section.Attributes != null && section.Attributes.Count != 0)
+				HandlersUtil.ThrowException ("Unrecognized attribute", section);
+
+			XmlNodeList httpHandlers = section.ChildNodes;
+			foreach (XmlNode child in httpHandlers) {
+				XmlNodeType ntype = child.NodeType;
+				if (ntype == XmlNodeType.Whitespace || ntype == XmlNodeType.Comment)
+					continue;
+
+				if (ntype != XmlNodeType.Element)
+					HandlersUtil.ThrowException ("Only elements allowed", child);
+				
+				string name = child.Name;
+				if (name == "clear") {
+					if (child.Attributes != null && child.Attributes.Count != 0)
+						HandlersUtil.ThrowException ("Unrecognized attribute", child);
+
+					mapper.Clear ();
+					continue;
+				}
+					
+				string verb = HandlersUtil.ExtractAttributeValue ("verb", child);
+				string path = HandlersUtil.ExtractAttributeValue ("path", child);
+				string validateStr = HandlersUtil.ExtractAttributeValue ("validate", child, true);
+				bool validate;
+				if (validateStr == null) {
+					validate = true;
+				} else {
+					validate = validateStr == "true";
+					if (!validate && validateStr != "false")
+						HandlersUtil.ThrowException (
+								"Invalid value for validate attribute.", child);
+				}
+
+				if (name == "add") {
+					string type = HandlersUtil.ExtractAttributeValue ("type", child);
+					if (child.Attributes != null && child.Attributes.Count != 0)
+						HandlersUtil.ThrowException ("Unrecognized attribute", child);
+
+					HandlerItem item = new HandlerItem (verb, path, type, validate);
+					mapper.Add (item);
+					continue;
+				}
+
+				if (name == "remove") {
+					if (child.Attributes != null && child.Attributes.Count != 0)
+						HandlersUtil.ThrowException ("Unrecognized attribute", child);
+
+					if (validate && mapper.Remove (verb, path) == null)
+						HandlersUtil.ThrowException ("There's no mapping to remove", child);
+					
+					continue;
+				}
+				HandlersUtil.ThrowException ("Unexpected element", child);
+			}
+
+			return mapper;
+		}
+	}
+
+	internal class HandlersUtil
+	{
+		private HandlersUtil ()
+		{
+		}
+
+		static internal string ExtractAttributeValue (string attKey, XmlNode node)
+		{
+			return ExtractAttributeValue (attKey, node, false);
+		}
+			
+		static internal string ExtractAttributeValue (string attKey, XmlNode node, bool optional)
+		{
+			if (node.Attributes == null) {
+				if (optional)
+					return null;
+
+				ThrowException ("Required attribute not found: " + attKey, node);
+			}
+
+			XmlNode att = node.Attributes.RemoveNamedItem (attKey);
+			if (att == null) {
+				if (optional)
+					return null;
+				ThrowException ("Required attribute not found: " + attKey, node);
+			}
+
+			string value = att.Value;
+			if (value == String.Empty) {
+				string opt = optional ? "Optional" : "Required";
+				ThrowException (opt + " attribute is empty: " + attKey, node);
+			}
+
+			return value;
+		}
+
+		static internal void ThrowException (string msg, XmlNode node)
+		{
+			if (node != null && node.Name != String.Empty)
+				msg = msg + " (node name: " + node.Name + ") ";
+			throw new ConfigurationException (msg, node);
+		}
+	}
+}
+