From 8b3cb93b49b21b7729adc56a9c06658fb94b1e8f Mon Sep 17 00:00:00 2001
From: lbsa71 <lbsa71@hotmail.com>
Date: Wed, 4 Jul 2007 04:29:23 +0000
Subject: [PATCH] * Started work on converting BaseHttpServer to a stream
 dispatcher

---
 OpenSim/Framework/Servers/BaseHttpServer.cs   | 174 +++++++++++-------
 OpenSim/Framework/Servers/IStreamHandler.cs   |  12 ++
 .../Servers/OpenSim.Framework.Servers.csproj  |  40 ++--
 .../Framework/Servers/RestStreamHandler.cs    |  15 ++
 4 files changed, 160 insertions(+), 81 deletions(-)
 create mode 100644 OpenSim/Framework/Servers/IStreamHandler.cs
 create mode 100644 OpenSim/Framework/Servers/RestStreamHandler.cs

diff --git a/OpenSim/Framework/Servers/BaseHttpServer.cs b/OpenSim/Framework/Servers/BaseHttpServer.cs
index 713793cf6c..81028b05d4 100644
--- a/OpenSim/Framework/Servers/BaseHttpServer.cs
+++ b/OpenSim/Framework/Servers/BaseHttpServer.cs
@@ -65,6 +65,7 @@ namespace OpenSim.Framework.Servers
         protected HttpListener m_httpListener;
         protected Dictionary<string, RestMethodEntry> m_restHandlers = new Dictionary<string, RestMethodEntry>();
         protected Dictionary<string, XmlRpcMethod> m_rpcHandlers = new Dictionary<string, XmlRpcMethod>();
+        protected Dictionary<string, IStreamHandler> m_streamHandlers = new Dictionary<string, IStreamHandler>();
         protected int m_port;
         protected bool firstcaps = true;
 
@@ -73,9 +74,14 @@ namespace OpenSim.Framework.Servers
             m_port = port;
         }
 
+        private void AddStreamHandler(string path, IStreamHandler handler)
+        {
+            m_streamHandlers.Add(path, handler);
+        }
+
         public bool AddRestHandler(string method, string path, RestMethod handler)
         {
-           //Console.WriteLine("adding new REST handler for path " + path);
+            //Console.WriteLine("adding new REST handler for path " + path);
             string methodKey = String.Format("{0}: {1}", method, path);
 
             if (!this.m_restHandlers.ContainsKey(methodKey))
@@ -190,73 +196,113 @@ namespace OpenSim.Framework.Servers
 
         public virtual void HandleRequest(Object stateinfo)
         {
-            try
+            HttpListenerContext context = (HttpListenerContext)stateinfo;
+
+            HttpListenerRequest request = context.Request;
+            HttpListenerResponse response = context.Response;
+
+            response.KeepAlive = false;
+            response.SendChunked = false;
+
+            string path = request.RawUrl;
+
+            IStreamHandler streamHandler;
+
+            if(TryGetStreamHandler(path, out streamHandler))
             {
-                HttpListenerContext context = (HttpListenerContext)stateinfo;
-
-                HttpListenerRequest request = context.Request;
-                HttpListenerResponse response = context.Response;
-
-                response.KeepAlive = false;
-                response.SendChunked = false;
-
-                Stream body = request.InputStream;
-                Encoding encoding = Encoding.UTF8;
-                StreamReader reader = new StreamReader(body, encoding);
-
-                string requestBody = reader.ReadToEnd();
-                body.Close();
-                reader.Close();
-
-                //Console.WriteLine(request.HttpMethod + " " + request.RawUrl + " Http/" + request.ProtocolVersion.ToString() + " content type: " + request.ContentType);
-                //Console.WriteLine(requestBody);
-
-                string responseString = "";
-               // Console.WriteLine("new request " + request.ContentType +" at "+ request.RawUrl);
-                switch (request.ContentType)
-                {
-                    case "text/xml":
-                        // must be XML-RPC, so pass to the XML-RPC parser
-
-                        responseString = ParseXMLRPC(requestBody);
-                        responseString = Regex.Replace(responseString, "utf-16", "utf-8");
-
-                        response.AddHeader("Content-type", "text/xml");
-                        break;
-
-                    case "application/xml":
-                    case "application/octet-stream":
-                        // probably LLSD we hope, otherwise it should be ignored by the parser
-                       // responseString = ParseLLSDXML(requestBody);
-                        responseString = ParseREST(requestBody, request.RawUrl, request.HttpMethod);
-                        response.AddHeader("Content-type", "application/xml");
-                        break;
-
-                    case "application/x-www-form-urlencoded":
-                        // a form data POST so send to the REST parser
-                        responseString = ParseREST(requestBody, request.RawUrl, request.HttpMethod);
-                        response.AddHeader("Content-type", "text/html");
-                        break;
-
-                    case null:
-                        // must be REST or invalid crap, so pass to the REST parser
-                        responseString = ParseREST(requestBody, request.RawUrl, request.HttpMethod);
-                        response.AddHeader("Content-type", "text/html");
-                        break;
+                streamHandler.Handle(path, request.InputStream, response.OutputStream );
+            }
+            else
+            {
+                HandleLegacyRequests(request, response);
+            }
+        }
 
+        private bool TryGetStreamHandler(string path, out IStreamHandler streamHandler )
+        {
+            string bestMatch = null;
+            
+            foreach (string pattern in m_streamHandlers.Keys)
+            {
+                if (path.StartsWith(pattern))
+                {                    
+                    if (String.IsNullOrEmpty( bestMatch ) || pattern.Length > bestMatch.Length)
+                    {
+                        bestMatch = pattern;
+                    }
                 }
+            }
 
-                byte[] buffer = Encoding.UTF8.GetBytes(responseString);
-                Stream output = response.OutputStream;
-                response.SendChunked = false;
-                response.ContentLength64 = buffer.Length;
-                output.Write(buffer, 0, buffer.Length);
-                output.Close();
-            }
-            catch (Exception e)
+            if( String.IsNullOrEmpty( bestMatch ) )
             {
-                //Console.WriteLine(e.ToString());
+                streamHandler = null;
+                return false;
             }
+            else
+            {
+                streamHandler = m_streamHandlers[bestMatch];
+                return true;
+            }
+        }
+
+        private void HandleLegacyRequests(HttpListenerRequest request, HttpListenerResponse response)
+        {
+            Stream body = request.InputStream;
+
+            Encoding encoding = Encoding.UTF8;
+            StreamReader reader = new StreamReader(body, encoding);
+
+            string requestBody = reader.ReadToEnd();
+            body.Close();
+            reader.Close();
+
+            //Console.WriteLine(request.HttpMethod + " " + request.RawUrl + " Http/" + request.ProtocolVersion.ToString() + " content type: " + request.ContentType);
+            //Console.WriteLine(requestBody);
+
+            string responseString = "";
+            // Console.WriteLine("new request " + request.ContentType +" at "+ request.RawUrl);
+            switch (request.ContentType)
+            {
+                case "text/xml":
+                    // must be XML-RPC, so pass to the XML-RPC parser
+
+                    responseString = ParseXMLRPC(requestBody);
+                    responseString = Regex.Replace(responseString, "utf-16", "utf-8");
+
+                    response.AddHeader("Content-type", "text/xml");
+                    break;
+
+                case "application/xml":
+                case "application/octet-stream":
+                    // probably LLSD we hope, otherwise it should be ignored by the parser
+                    // responseString = ParseLLSDXML(requestBody);
+                    responseString = ParseREST(requestBody, request.RawUrl, request.HttpMethod);
+                    response.AddHeader("Content-type", "application/xml");
+                    break;
+
+                case "application/x-www-form-urlencoded":
+                    // a form data POST so send to the REST parser
+                    responseString = ParseREST(requestBody, request.RawUrl, request.HttpMethod);
+                    response.AddHeader("Content-type", "text/html");
+                    break;
+
+                case null:
+                    // must be REST or invalid crap, so pass to the REST parser
+                    responseString = ParseREST(requestBody, request.RawUrl, request.HttpMethod);
+                    response.AddHeader("Content-type", "text/html");
+                    break;
+
+            }
+
+            byte[] buffer = Encoding.UTF8.GetBytes(responseString);
+            Stream output = response.OutputStream;
+            response.SendChunked = false;
+            response.ContentLength64 = buffer.Length;
+
+
+
+            output.Write(buffer, 0, buffer.Length);
+            output.Close();
         }
 
         public void Start()
@@ -291,9 +337,5 @@ namespace OpenSim.Framework.Servers
             }
         }
 
-        public void AddLlsdMethod<TResponse, TRequest>(string path, LlsdMethod<TResponse, TRequest> handler )
-        {
-            throw new Exception("The method or operation is not implemented.");
-        }
     }
 }
diff --git a/OpenSim/Framework/Servers/IStreamHandler.cs b/OpenSim/Framework/Servers/IStreamHandler.cs
new file mode 100644
index 0000000000..88ae641dbb
--- /dev/null
+++ b/OpenSim/Framework/Servers/IStreamHandler.cs
@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+
+namespace OpenSim.Framework.Servers
+{
+    public interface IStreamHandler
+    {
+        void Handle(string path, Stream request, Stream response);
+    }
+}
diff --git a/OpenSim/Framework/Servers/OpenSim.Framework.Servers.csproj b/OpenSim/Framework/Servers/OpenSim.Framework.Servers.csproj
index 909bd622b6..956a9bc7a6 100644
--- a/OpenSim/Framework/Servers/OpenSim.Framework.Servers.csproj
+++ b/OpenSim/Framework/Servers/OpenSim.Framework.Servers.csproj
@@ -1,4 +1,4 @@
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <ProjectType>Local</ProjectType>
     <ProductVersion>8.0.50727</ProductVersion>
@@ -6,7 +6,8 @@
     <ProjectGuid>{2CC71860-0000-0000-0000-000000000000}</ProjectGuid>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ApplicationIcon></ApplicationIcon>
+    <ApplicationIcon>
+    </ApplicationIcon>
     <AssemblyKeyContainerName>
     </AssemblyKeyContainerName>
     <AssemblyName>OpenSim.Framework.Servers</AssemblyName>
@@ -15,9 +16,11 @@
     <DefaultTargetSchema>IE50</DefaultTargetSchema>
     <DelaySign>false</DelaySign>
     <OutputType>Library</OutputType>
-    <AppDesignerFolder></AppDesignerFolder>
+    <AppDesignerFolder>
+    </AppDesignerFolder>
     <RootNamespace>OpenSim.Framework.Servers</RootNamespace>
-    <StartupObject></StartupObject>
+    <StartupObject>
+    </StartupObject>
     <FileUpgradeFlags>
     </FileUpgradeFlags>
   </PropertyGroup>
@@ -28,7 +31,8 @@
     <ConfigurationOverrideFile>
     </ConfigurationOverrideFile>
     <DefineConstants>TRACE;DEBUG</DefineConstants>
-    <DocumentationFile></DocumentationFile>
+    <DocumentationFile>
+    </DocumentationFile>
     <DebugSymbols>True</DebugSymbols>
     <FileAlignment>4096</FileAlignment>
     <Optimize>False</Optimize>
@@ -37,7 +41,8 @@
     <RemoveIntegerChecks>False</RemoveIntegerChecks>
     <TreatWarningsAsErrors>False</TreatWarningsAsErrors>
     <WarningLevel>4</WarningLevel>
-    <NoWarn></NoWarn>
+    <NoWarn>
+    </NoWarn>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
     <AllowUnsafeBlocks>False</AllowUnsafeBlocks>
@@ -46,7 +51,8 @@
     <ConfigurationOverrideFile>
     </ConfigurationOverrideFile>
     <DefineConstants>TRACE</DefineConstants>
-    <DocumentationFile></DocumentationFile>
+    <DocumentationFile>
+    </DocumentationFile>
     <DebugSymbols>False</DebugSymbols>
     <FileAlignment>4096</FileAlignment>
     <Optimize>True</Optimize>
@@ -55,22 +61,24 @@
     <RemoveIntegerChecks>False</RemoveIntegerChecks>
     <TreatWarningsAsErrors>False</TreatWarningsAsErrors>
     <WarningLevel>4</WarningLevel>
-    <NoWarn></NoWarn>
+    <NoWarn>
+    </NoWarn>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="libsecondlife.dll" >
+    <Reference Include="libsecondlife.dll">
       <HintPath>..\..\..\bin\libsecondlife.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="System" >
+    <Reference Include="System">
       <HintPath>System.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="System.Xml" >
+    <Reference Include="System.Data" />
+    <Reference Include="System.Xml">
       <HintPath>System.Xml.dll</HintPath>
       <Private>False</Private>
     </Reference>
-    <Reference Include="XMLRPC.dll" >
+    <Reference Include="XMLRPC.dll">
       <HintPath>..\..\..\bin\XMLRPC.dll</HintPath>
       <Private>False</Private>
     </Reference>
@@ -80,13 +88,13 @@
       <Name>OpenSim.Framework</Name>
       <Project>{8ACA2445-0000-0000-0000-000000000000}</Project>
       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>
-			<Private>False</Private>
+      <Private>False</Private>
     </ProjectReference>
     <ProjectReference Include="..\Console\OpenSim.Framework.Console.csproj">
       <Name>OpenSim.Framework.Console</Name>
       <Project>{A7CD0630-0000-0000-0000-000000000000}</Project>
       <Package>{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</Package>
-			<Private>False</Private>
+      <Private>False</Private>
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
@@ -99,12 +107,14 @@
     <Compile Include="ILlsdMethodHandler.cs">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="IStreamHandler.cs" />
     <Compile Include="LlsdMethod.cs">
       <SubType>Code</SubType>
     </Compile>
     <Compile Include="RestMethod.cs">
       <SubType>Code</SubType>
     </Compile>
+    <Compile Include="RestStreamHandler.cs" />
     <Compile Include="UDPServerBase.cs">
       <SubType>Code</SubType>
     </Compile>
@@ -119,4 +129,4 @@
     <PostBuildEvent>
     </PostBuildEvent>
   </PropertyGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/OpenSim/Framework/Servers/RestStreamHandler.cs b/OpenSim/Framework/Servers/RestStreamHandler.cs
new file mode 100644
index 0000000000..145a184e4a
--- /dev/null
+++ b/OpenSim/Framework/Servers/RestStreamHandler.cs
@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.IO;
+
+namespace OpenSim.Framework.Servers
+{
+    public class RestStreamHandler : IStreamHandler
+    {
+        public void Handle( string path, Stream request, Stream response )
+        {
+            
+        }
+    }
+}