oops

svn path=/trunk/xsp/; revision=47246

src/ModMonoRequest.cs

@@ -0,0 +1,333 @@
+//
+// ModMonoRequest.cs
+//
+// Authors:
+//	Daniel Lopez Ridruejo
+// 	Gonzalo Paniagua Javier
+//
+// Copyright (c) 2002 Daniel Lopez Ridruejo.
+//           (c) 2002,2003 Ximian, Inc.
+//           All rights reserved.
+// (C) Copyright 2004 Novell, Inc. (http://www.novell.com)
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
+using System;
+using System.Collections;
+using System.Diagnostics;
+using System.IO;
+using System.Net.Sockets;
+using System.Runtime.InteropServices;
+using System.Text;
+
+namespace Mono.WebServer
+{
+	enum Cmd
+	{
+		FIRST_COMMAND,
+		SEND_FROM_MEMORY = 0,
+		GET_SERVER_VARIABLE,
+		SET_RESPONSE_HEADER,
+		GET_LOCAL_PORT,
+		FLUSH,
+		CLOSE,
+		SHOULD_CLIENT_BLOCK,
+		SETUP_CLIENT_BLOCK,
+		GET_CLIENT_BLOCK,
+		SET_STATUS,
+		DECLINE_REQUEST,
+		NOT_FOUND,
+		IS_CONNECTED,
+		LAST_COMMAND
+	}
+
+	public class ModMonoRequest : MarshalByRefObject
+	{
+		const int MAX_STRING_SIZE = 1024 * 10;
+		BinaryReader reader;
+		BinaryWriter writer;
+		Hashtable serverVariables = new Hashtable (CaseInsensitiveHashCodeProvider.DefaultInvariant,
+							   CaseInsensitiveComparer.DefaultInvariant);
+		string verb;
+		string queryString;
+		string protocol;
+		string uri;
+		string localAddress;
+		string remoteAddress;
+		string remoteName;
+		int localPort;
+		int remotePort;
+		int serverPort;
+		bool setupClientBlockCalled;
+		Hashtable headers;
+		int clientBlock;
+		bool shutdown;
+
+		public ModMonoRequest (NetworkStream ns)
+		{
+			reader = new BinaryReader (ns);
+			writer = new BinaryWriter (ns);
+			GetInitialData ();
+		}
+
+		public bool ShuttingDown {
+			get { return shutdown; }
+		}
+
+		void GetInitialData ()
+		{
+			byte cmd = reader.ReadByte ();
+			shutdown = (cmd == 0);
+			if (shutdown)
+				return;
+
+			if (cmd != 2) {
+				string msg = "mod_mono and xsp have different versions.";
+				Console.WriteLine (msg);
+				Console.Error.WriteLine (msg);
+				throw new InvalidOperationException (msg);
+			}
+
+			verb = ReadString ();
+			uri = ReadString ();
+			queryString = ReadString ();
+			protocol = ReadString ();
+			int nheaders = reader.ReadInt32 ();
+			headers = new Hashtable (CaseInsensitiveHashCodeProvider.DefaultInvariant,
+						 CaseInsensitiveComparer.DefaultInvariant);
+			for (int i = 0; i < nheaders; i++) {
+				string key = ReadString ();
+				headers [key] = ReadString ();
+			}
+
+			localAddress = ReadString ();
+			serverPort = reader.ReadInt32 ();
+			remoteAddress = ReadString ();
+			remotePort = reader.ReadInt32 ();
+			remoteName = ReadString ();
+		}
+
+		void SendSimpleCommand (Cmd cmd)
+		{
+			int b = (int) cmd;
+			writer.Write (b);
+		}
+
+		string ReadString ()
+		{
+			int size = reader.ReadInt32 ();
+			if (size < 0 || size > MAX_STRING_SIZE)
+				throw new ArgumentOutOfRangeException ("size", "Abnormal string size.");
+
+			byte [] buf = new byte [size];
+			string s;
+			if (size != 0) {
+				reader.Read (buf, 0, size);
+				//FIXME: encoding!
+				s = Encoding.Default.GetString (buf);
+			} else {
+				s = "";
+			}
+			return s;
+		}
+
+		void WriteString (string s)
+		{
+			writer.Write (Encoding.Default.GetByteCount (s));
+			writer.Write (Encoding.Default.GetBytes (s));
+		}
+
+		public void Decline ()
+		{
+			SendSimpleCommand (Cmd.DECLINE_REQUEST);
+		}
+
+		public void NotFound ()
+		{
+			SendSimpleCommand (Cmd.NOT_FOUND);
+		}
+
+		public string GetProtocol ()
+		{
+			return protocol;
+		}
+
+		public string GetHttpVerbName ()
+		{
+			return verb;
+		}
+
+		public void SendResponseFromMemory (byte [] data, int position, int length)
+		{
+			SendSimpleCommand (Cmd.SEND_FROM_MEMORY);
+			writer.Write (length);
+			writer.Write (data, position, length);
+		}
+
+		public void SetResponseHeader (string name, string value)
+		{
+			SendSimpleCommand (Cmd.SET_RESPONSE_HEADER);
+			WriteString (name);
+			WriteString (value);
+		}
+
+		public string [] GetAllHeaders ()
+		{
+			ICollection k = headers.Keys;
+			string [] keys = new string [k.Count];
+			k.CopyTo (keys, 0);
+			return keys;
+		}
+
+		public string [] GetAllHeaderValues ()
+		{
+			ICollection v = headers.Values;
+			string [] values = new string [v.Count];
+			v.CopyTo (values, 0);
+			return values;
+		}
+
+		public string GetRequestHeader (string name)
+		{
+			return headers [name] as string;
+		}
+
+		public string GetServerVariable (string name)
+		{
+			object o = serverVariables [name];
+			if (o != null)
+				return (string) o;
+
+			SendSimpleCommand (Cmd.GET_SERVER_VARIABLE);
+			WriteString (name);
+			o = ReadString ();
+			serverVariables [name] = o;
+
+			return (string) o;
+		}
+
+		public string GetUri ()
+		{
+			return uri;
+		}
+
+		public string GetQueryString ()
+		{
+			return queryString;
+		}
+
+		// May be different from Connection.GetLocalPort depending on Apache configuration,
+		// for things like self referential URLs, etc.
+		public int GetServerPort ()
+		{
+			return serverPort;
+		}
+
+		public string GetRemoteAddress ()
+		{
+			return remoteAddress;
+		}
+
+		public string GetRemoteName ()
+		{
+			return remoteName;
+		}
+
+		public string GetLocalAddress ()
+		{
+			return localAddress;
+		}
+
+		public int GetLocalPort ()
+		{
+			if (localPort != 0)
+				return localPort;
+
+			SendSimpleCommand (Cmd.GET_LOCAL_PORT);
+			localPort = reader.ReadInt32 ();
+			return localPort;
+		}
+
+		public int GetRemotePort ()
+		{
+			return remotePort;
+		}
+
+		public void Flush ()
+		{
+			// No-op in mod_mono. Not needed.
+			// SendSimpleCommand (Cmd.FLUSH);
+		}
+
+		public void Close ()
+		{
+			SendSimpleCommand (Cmd.CLOSE);
+		}
+
+		public int SetupClientBlock ()
+		{
+			if (setupClientBlockCalled)
+				return clientBlock;
+
+			setupClientBlockCalled = true;
+			SendSimpleCommand (Cmd.SETUP_CLIENT_BLOCK);
+			int i = reader.ReadInt32 ();
+			clientBlock = i;
+			return i;
+		} 
+
+		public bool IsConnected ()
+		{
+			SendSimpleCommand (Cmd.IS_CONNECTED);
+			int i = reader.ReadInt32 ();
+			return (i != 0);
+		}
+
+		public bool ShouldClientBlock () 
+		{
+			SendSimpleCommand (Cmd.SHOULD_CLIENT_BLOCK);
+			int i = reader.ReadInt32 ();
+			return (i == 0);
+		} 
+
+		public int GetClientBlock ([Out] byte [] bytes, int position, int size) 
+		{
+			if (!ShouldClientBlock ()) return 0;
+			if (SetupClientBlock () != 0) return 0;
+
+			SendSimpleCommand (Cmd.GET_CLIENT_BLOCK);
+			writer.Write (size);
+			int i = reader.ReadInt32 ();
+			if (i > size)
+				throw new Exception ("Houston...");
+
+			return reader.Read (bytes, position, i);
+		} 
+
+		public void SetStatusCodeLine (int code, string status)
+		{
+			SendSimpleCommand (Cmd.SET_STATUS);
+			writer.Write (code);
+			WriteString (status);
+		}
+	}
+}
+