status: work in progress, non-functional

having OSHttpHandler as a delegate was not too hot, i'm
refactoring it into an interface.

OpenSim/Framework/Servers/OSHttpHandler.cs

@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSim Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Text.RegularExpressions;
+
+namespace OpenSim.Framework.Servers
+{
+    /// <sumary>
+    /// Any OSHttpHandler must return one of the following results:
+    /// <list type = "table">
+    ///   <listheader>
+    ///     <term>result code</term>
+    ///     <description>meaning</description>
+    ///   </listheader>
+    ///   <item>
+    ///     <term>Pass</term>
+    ///     <description>handler did not process the request</request>
+    ///   </item>
+    ///   <item>
+    ///     <term>Handled</term>
+    ///     <description>handler did process the request, OSHttpServer
+    ///       can clean up and close the request</request>
+    ///   </item>
+    ///   <item>
+    ///     <term>Detached</term>
+    ///     <description>handler handles the request, OSHttpServer
+    ///       can forget about the request and should not touch it as
+    ///       the handler has taken control</request>
+    ///   </item>
+    /// </list>
+    /// </summary>
+    public enum OSHttpHandlerResult
+    {
+        Pass,
+        Handled,
+        Detached,
+    }
+
+    public interface OSHttpHandler
+    {
+        /// <summary>
+        /// Regular expression used to match against path of incoming
+        /// HTTP request. If you want to match any string either use
+        /// '.*' or null. To match for the emtpy string use '^$'
+        /// </summary>
+        Regex Path 
+        {
+            get;
+        }
+
+        /// <summary>
+        /// Dictionary of (header name, regular expression) tuples,
+        /// allowing us to match on HTTP header fields.
+        /// </summary>
+        Dictionary<string, Regex> Headers
+        { 
+            get;
+        }
+
+        /// <summary>
+        /// Dictionary of (header name, regular expression) tuples,
+        /// allowing us to match on HTTP header fields.
+        /// </summary>
+        /// <remarks>
+        /// This feature is currently not implemented as it requires
+        /// (trivial) changes to HttpServer.HttpListener that have not
+        /// been implemented.
+        /// </remarks>
+        Regex IPEndPointWhitelist
+        {
+            get;
+        }
+
+        OSHttpHandlerResult Process(OSHttpRequest request);
+    }
+}