/* * 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; using System.Collections.Generic; using System.IO; using System.Net; using System.Text; using System.Threading; using System.Xml; using Nwc.XmlRpc; using libsecondlife.StructuredData; using OpenSim.Framework.Console; namespace OpenSim.Framework.Servers { public class BaseHttpServer { protected Thread m_workerThread; protected HttpListener m_httpListener; protected Dictionary m_rpcHandlers = new Dictionary(); protected LLSDMethod m_llsdHandler = null; protected Dictionary m_streamHandlers = new Dictionary(); protected Dictionary m_HTTPHandlers = new Dictionary(); protected uint m_port; protected bool m_ssl = false; protected bool m_firstcaps = true; public uint Port { get { return m_port; } } public BaseHttpServer(uint port) { m_port = port; } public BaseHttpServer(uint port, bool ssl) { m_ssl = ssl; m_port = port; } public void AddStreamHandler(IRequestHandler 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 (!m_rpcHandlers.ContainsKey(method)) { m_rpcHandlers.Add(method, handler); return true; } //must already have a handler for that path so return false return false; } public bool AddHTTPHandler(string method, GenericHTTPMethod handler) { if (!m_HTTPHandlers.ContainsKey(method)) { m_HTTPHandlers.Add(method, handler); return true; } //must already have a handler for that path so return false return false; } public bool SetLLSDHandler(LLSDMethod handler) { m_llsdHandler = handler; return true; } 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); IRequestHandler requestHandler; if (TryGetStreamHandler(handlerKey, out requestHandler)) { // Okay, so this is bad, but should be considered temporary until everything is IStreamHandler. byte[] buffer; if (requestHandler is IStreamedRequestHandler) { IStreamedRequestHandler streamedRequestHandler = requestHandler as IStreamedRequestHandler; buffer = streamedRequestHandler.Handle(path, request.InputStream); } else { IStreamHandler streamHandler = (IStreamHandler) requestHandler; using (MemoryStream memoryStream = new MemoryStream()) { streamHandler.Handle(path, request.InputStream, memoryStream); memoryStream.Flush(); buffer = memoryStream.ToArray(); } } request.InputStream.Close(); response.ContentType = requestHandler.ContentType; response.ContentLength64 = buffer.LongLength; response.OutputStream.Write(buffer, 0, buffer.Length); response.OutputStream.Close(); } else { switch (request.ContentType) { case null: case "text/html": HandleHTTPRequest(request, response); break; case "application/xml+llsd": HandleLLSDRequests(request, response); break; case "text/xml": case "application/xml": default: HandleXmlRpcRequests(request, response); break; } } } private bool TryGetStreamHandler(string handlerKey, out IRequestHandler 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 bool TryGetHTTPHandler(string handlerKey, out GenericHTTPMethod HTTPHandler) { string bestMatch = null; foreach (string pattern in m_HTTPHandlers.Keys) { if (handlerKey.StartsWith(pattern)) { if (String.IsNullOrEmpty(bestMatch) || pattern.Length > bestMatch.Length) { bestMatch = pattern; } } } if (String.IsNullOrEmpty(bestMatch)) { HTTPHandler = null; return false; } else { HTTPHandler = m_HTTPHandlers[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(); string responseString = String.Empty; XmlRpcRequest xmlRprcRequest = null; try { xmlRprcRequest = (XmlRpcRequest) (new XmlRpcRequestDeserializer()).Deserialize(requestBody); } catch (XmlException e) { } if (xmlRprcRequest != null) { string methodName = xmlRprcRequest.MethodName; if (methodName != null) { XmlRpcResponse xmlRpcResponse; XmlRpcMethod method; if (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; } responseString = XmlRpcResponseSerializer.Singleton.Serialize(xmlRpcResponse); } else { System.Console.WriteLine("Handler not found for http request " + request.RawUrl); responseString = "Error"; } } response.ContentType = "text/xml"; byte[] buffer = Encoding.UTF8.GetBytes(responseString); response.SendChunked = false; response.ContentLength64 = buffer.Length; response.ContentEncoding = Encoding.UTF8; try { response.OutputStream.Write(buffer, 0, buffer.Length); } catch (Exception ex) { MainLog.Instance.Warn("HTTPD", "Error - " + ex.Message); } finally { response.OutputStream.Close(); } } private void HandleLLSDRequests(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(); LLSD llsdRequest = null; LLSD llsdResponse = null; try { llsdRequest = LLSDParser.DeserializeXml(requestBody); } catch (Exception ex) { MainLog.Instance.Warn("HTTPD", "Error - " + ex.Message); } if (llsdRequest != null && m_llsdHandler != null) { llsdResponse = m_llsdHandler(llsdRequest); } else { LLSDMap map = new LLSDMap(); map["reason"] = LLSD.FromString("LLSDRequest"); map["message"] = LLSD.FromString("No handler registered for LLSD Requests"); map["login"] = LLSD.FromString("false"); llsdResponse = map; } response.ContentType = "application/xml+llsd"; byte[] buffer = LLSDParser.SerializeXmlBytes(llsdResponse); response.SendChunked = false; response.ContentLength64 = buffer.Length; response.ContentEncoding = Encoding.UTF8; try { response.OutputStream.Write(buffer, 0, buffer.Length); } catch (Exception ex) { MainLog.Instance.Warn("HTTPD", "Error - " + ex.Message); } finally { response.OutputStream.Close(); } } public void HandleHTTPRequest(HttpListenerRequest request, HttpListenerResponse response) { // This is a test. There's a workable alternative.. as this way sucks. // We'd like to put this into a text file parhaps that's easily editable. // // For this test to work, I used the following secondlife.exe parameters // "C:\Program Files\SecondLifeWindLight\SecondLifeWindLight.exe" -settings settings_windlight.xml -channel "Second Life WindLight" -set SystemLanguage en-us -loginpage http://10.1.1.2:8002/?show_login_form=TRUE -loginuri http://10.1.1.2:8002 -user 10.1.1.2 // // Even after all that, there's still an error, but it's a start. // // I depend on show_login_form being in the secondlife.exe parameters to figure out // to display the form, or process it. // a better way would be nifty. Stream requestStream = request.InputStream; Encoding encoding = Encoding.UTF8; StreamReader reader = new StreamReader(requestStream, encoding); string requestBody = reader.ReadToEnd(); reader.Close(); requestStream.Close(); string responseString = String.Empty; Hashtable keysvals = new Hashtable(); string[] querystringkeys = request.QueryString.AllKeys; string[] rHeaders = request.Headers.AllKeys; foreach (string queryname in querystringkeys) { keysvals.Add(queryname, request.QueryString[queryname]); } if (keysvals.Contains("method")) { MainLog.Instance.Warn("HTTP", "Contains Method"); string method = (string) keysvals["method"]; MainLog.Instance.Warn("HTTP", requestBody); GenericHTTPMethod requestprocessor; bool foundHandler = TryGetHTTPHandler(method, out requestprocessor); if (foundHandler) { Hashtable responsedata = requestprocessor(keysvals); DoHTTPGruntWork(responsedata,response); //SendHTML500(response); } else { MainLog.Instance.Warn("HTTP", "Handler Not Found"); SendHTML404(response); } } else { MainLog.Instance.Warn("HTTP", "No Method specified"); SendHTML404(response); } } private void DoHTTPGruntWork(Hashtable responsedata, HttpListenerResponse response) { int responsecode = (int)responsedata["int_response_code"]; string responseString = (string)responsedata["str_response_string"]; // We're forgoing the usual error status codes here because the client // ignores anything but 200 and 301 response.StatusCode = 200; if (responsecode == 301) { response.RedirectLocation = (string)responsedata["str_redirect_location"]; response.StatusCode = responsecode; } response.AddHeader("Content-type", "text/html"); byte[] buffer = Encoding.UTF8.GetBytes(responseString); response.SendChunked = false; response.ContentLength64 = buffer.Length; response.ContentEncoding = Encoding.UTF8; try { response.OutputStream.Write(buffer, 0, buffer.Length); } catch (Exception ex) { MainLog.Instance.Warn("HTTPD", "Error - " + ex.Message); } finally { response.OutputStream.Close(); } } public void SendHTML404(HttpListenerResponse response) { // I know this statuscode is dumb, but the client doesn't respond to 404s and 500s response.StatusCode = 200; response.AddHeader("Content-type", "text/html"); string responseString = GetHTTP404(); byte[] buffer = Encoding.UTF8.GetBytes(responseString); response.SendChunked = false; response.ContentLength64 = buffer.Length; response.ContentEncoding = Encoding.UTF8; try { response.OutputStream.Write(buffer, 0, buffer.Length); } catch (Exception ex) { MainLog.Instance.Warn("HTTPD", "Error - " + ex.Message); } finally { response.OutputStream.Close(); } } public void SendHTML500(HttpListenerResponse response) { // I know this statuscode is dumb, but the client doesn't respond to 404s and 500s response.StatusCode = 200; response.AddHeader("Content-type", "text/html"); string responseString = GetHTTP500(); byte[] buffer = Encoding.UTF8.GetBytes(responseString); response.SendChunked = false; response.ContentLength64 = buffer.Length; response.ContentEncoding = Encoding.UTF8; try { response.OutputStream.Write(buffer, 0, buffer.Length); } catch (Exception ex) { MainLog.Instance.Warn("HTTPD", "Error - " + ex.Message); } finally { response.OutputStream.Close(); } } public void Start() { MainLog.Instance.Verbose("HTTPD", "Starting up HTTP Server"); m_workerThread = new Thread(new ThreadStart(StartHTTP)); m_workerThread.IsBackground = true; m_workerThread.Start(); } private void StartHTTP() { try { MainLog.Instance.Verbose("HTTPD", "Spawned main thread OK"); m_httpListener = new HttpListener(); if (!m_ssl) { m_httpListener.Prefixes.Add("http://+:" + m_port + "/"); } else { m_httpListener.Prefixes.Add("https://+:" + m_port + "/"); } m_httpListener.Start(); HttpListenerContext context; while (true) { context = m_httpListener.GetContext(); ThreadPool.QueueUserWorkItem(new WaitCallback(HandleRequest), context); } } catch (Exception e) { MainLog.Instance.Warn("HTTPD", "Error - " + e.Message); } } public void RemoveStreamHandler(string httpMethod, string path) { m_streamHandlers.Remove(GetHandlerKey(httpMethod, path)); } public void RemoveHTTPHandler(string httpMethod, string path) { m_HTTPHandlers.Remove(GetHandlerKey(httpMethod, path)); } public string GetHTTP404() { string file = Path.Combine(Util.configDir(), "http_404.html"); if (!File.Exists(file)) return getDefaultHTTP404(); StreamReader sr = File.OpenText(file); string result = sr.ReadToEnd(); sr.Close(); return result; } public string GetHTTP500() { string file = Path.Combine(Util.configDir(), "http_500.html"); if (!File.Exists(file)) return getDefaultHTTP500(); StreamReader sr = File.OpenText(file); string result = sr.ReadToEnd(); sr.Close(); return result; } // Fallback HTTP responses in case the HTTP error response files don't exist private string getDefaultHTTP404() { return "404 Page not found

Ooops!

The page you requested has been obsconded with by knomes. Find hippos quick!

"; } private string getDefaultHTTP500() { return "500 Internal Server Error

Ooops!

The server you requested is overun by knomes! Find hippos quick!

"; } } }