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- /*
- * Copyright (c) Contributors, http://www.openmetaverse.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;
- using System.Collections.Generic;
- using System.IO;
- using System.Net;
- using System.Text;
- using System.Text.RegularExpressions;
- using System.Threading;
- using Nwc.XmlRpc;
- using OpenSim.Framework.Console;
- namespace OpenSim.Framework.Servers
- {
- public class BaseHttpServer
- {
- protected Thread m_workerThread;
- protected HttpListener m_httpListener;
- 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 m_firstcaps = true;
- public BaseHttpServer(int port)
- {
- m_port = port;
- }
- public void AddStreamHandler( IStreamHandler handler)
- {
- string httpMethod = handler.HttpMethod;
- string path = handler.Path;
-
- string handlerKey = GetHandlerKey(httpMethod, path);
- m_streamHandlers.Add(handlerKey, handler);
- }
- private static string GetHandlerKey(string httpMethod, string path)
- {
- return httpMethod + ":" + path;
- }
- public bool AddXmlRPCHandler(string method, XmlRpcMethod handler)
- {
- if (!this.m_rpcHandlers.ContainsKey(method))
- {
- this.m_rpcHandlers.Add(method, handler);
- return true;
- }
- //must already have a handler for that path so return false
- return false;
- }
- public virtual void HandleRequest(Object stateinfo)
- {
- HttpListenerContext context = (HttpListenerContext)stateinfo;
- HttpListenerRequest request = context.Request;
- HttpListenerResponse response = context.Response;
- response.KeepAlive = false;
- response.SendChunked = false;
- string path = request.RawUrl;
- string handlerKey = GetHandlerKey( request.HttpMethod, path );
- IStreamHandler streamHandler;
- if (TryGetStreamHandler( handlerKey, out streamHandler))
- {
- byte[] buffer = streamHandler.Handle(path, request.InputStream);
- request.InputStream.Close();
- response.ContentType = streamHandler.ContentType;
- response.ContentLength64 = buffer.LongLength;
- response.OutputStream.Write(buffer, 0, buffer.Length);
- response.OutputStream.Close();
- }
- else
- {
- HandleXmlRpcRequests(request, response);
- }
- }
- private bool TryGetStreamHandler(string handlerKey, out IStreamHandler streamHandler)
- {
- string bestMatch = null;
- foreach (string pattern in m_streamHandlers.Keys)
- {
- if (handlerKey.StartsWith(pattern))
- {
- if (String.IsNullOrEmpty(bestMatch) || pattern.Length > bestMatch.Length)
- {
- bestMatch = pattern;
- }
- }
- }
- if (String.IsNullOrEmpty(bestMatch))
- {
- streamHandler = null;
- return false;
- }
- else
- {
- streamHandler = m_streamHandlers[bestMatch];
- return true;
- }
- }
- private void HandleXmlRpcRequests(HttpListenerRequest request, HttpListenerResponse response)
- {
- Stream requestStream = request.InputStream;
- Encoding encoding = Encoding.UTF8;
- StreamReader reader = new StreamReader(requestStream, encoding);
- string requestBody = reader.ReadToEnd();
- reader.Close();
- requestStream.Close();
- XmlRpcRequest xmlRprcRequest = (XmlRpcRequest)(new XmlRpcRequestDeserializer()).Deserialize(requestBody);
- string methodName = xmlRprcRequest.MethodName;
- XmlRpcResponse xmlRpcResponse;
- XmlRpcMethod method;
- if (this.m_rpcHandlers.TryGetValue(methodName, out method))
- {
- xmlRpcResponse = method(xmlRprcRequest);
- }
- else
- {
- xmlRpcResponse = new XmlRpcResponse();
- Hashtable unknownMethodError = new Hashtable();
- unknownMethodError["reason"] = "XmlRequest"; ;
- unknownMethodError["message"] = "Unknown Rpc Request ["+methodName+"]";
- unknownMethodError["login"] = "false";
- xmlRpcResponse.Value = unknownMethodError;
- }
- response.AddHeader("Content-type", "text/xml");
- string responseString = XmlRpcResponseSerializer.Singleton.Serialize(xmlRpcResponse);
-
- byte[] buffer = Encoding.UTF8.GetBytes(responseString);
- response.SendChunked = false;
- response.ContentLength64 = buffer.Length;
- response.ContentEncoding = Encoding.UTF8;
- response.OutputStream.Write(buffer, 0, buffer.Length);
- response.OutputStream.Close();
- }
- public void Start()
- {
- MainLog.Instance.WriteLine(LogPriority.LOW, "BaseHttpServer.cs: Starting up HTTP Server");
- m_workerThread = new Thread(new ThreadStart(StartHTTP));
- m_workerThread.IsBackground = true;
- m_workerThread.Start();
- }
- private void StartHTTP()
- {
- try
- {
- MainLog.Instance.WriteLine(LogPriority.LOW, "BaseHttpServer.cs: StartHTTP() - Spawned main thread OK");
- m_httpListener = new HttpListener();
- m_httpListener.Prefixes.Add("http://+:" + m_port + "/");
- m_httpListener.Start();
- HttpListenerContext context;
- while (true)
- {
- context = m_httpListener.GetContext();
- ThreadPool.QueueUserWorkItem(new WaitCallback(HandleRequest), context);
- }
- }
- catch (Exception e)
- {
- MainLog.Instance.WriteLine(LogPriority.MEDIUM, e.Message);
- }
- }
- public void RemoveStreamHandler(string httpMethod, string path)
- {
- m_streamHandlers.Remove(GetHandlerKey(httpMethod, path));
- }
- }
- }
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