/* * 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 OpenSimulator 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.Collections.Specialized; using System.IO; using System.Net; using System.Net.Sockets; using System.Security.Cryptography.X509Certificates; using System.Reflection; using System.Globalization; using System.Text; using System.Threading; using System.Xml; using HttpServer; using log4net; using Nwc.XmlRpc; using OpenMetaverse.StructuredData; using CoolHTTPListener = HttpServer.HttpListener; using HttpListener=System.Net.HttpListener; using LogPrio=HttpServer.LogPrio; using OpenSim.Framework.Monitoring; namespace OpenSim.Framework.Servers.HttpServer { public class BaseHttpServer : IHttpServer { private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); private HttpServerLogWriter httpserverlog = new HttpServerLogWriter(); public int DebugLevel { get; set; } private volatile int NotSocketErrors = 0; public volatile bool HTTPDRunning = false; // protected HttpListener m_httpListener; protected CoolHTTPListener m_httpListener2; protected Dictionary m_rpcHandlers = new Dictionary(); protected Dictionary m_rpcHandlersKeepAlive = new Dictionary(); protected DefaultLLSDMethod m_defaultLlsdHandler = null; // <-- Moving away from the monolithic.. and going to /registered/ protected Dictionary m_llsdHandlers = new Dictionary(); protected Dictionary m_streamHandlers = new Dictionary(); protected Dictionary m_HTTPHandlers = new Dictionary(); protected Dictionary m_agentHandlers = new Dictionary(); protected Dictionary m_pollHandlers = new Dictionary(); protected uint m_port; protected uint m_sslport; protected bool m_ssl; private X509Certificate2 m_cert; protected bool m_firstcaps = true; protected string m_SSLCommonName = ""; protected IPAddress m_listenIPAddress = IPAddress.Any; private PollServiceRequestManager m_PollServiceManager; public uint SSLPort { get { return m_sslport; } } public string SSLCommonName { get { return m_SSLCommonName; } } public uint Port { get { return m_port; } } public bool UseSSL { get { return m_ssl; } } public IPAddress ListenIPAddress { get { return m_listenIPAddress; } set { m_listenIPAddress = value; } } public BaseHttpServer(uint port) { m_port = port; } public BaseHttpServer(uint port, bool ssl) : this (port) { m_ssl = ssl; } public BaseHttpServer(uint port, bool ssl, uint sslport, string CN) : this (port, ssl) { if (m_ssl) { m_sslport = sslport; } } public BaseHttpServer(uint port, bool ssl, string CPath, string CPass) : this (port, ssl) { if (m_ssl) { m_cert = new X509Certificate2(CPath, CPass); } } /// /// Add a stream handler to the http server. If the handler already exists, then nothing happens. /// /// public void AddStreamHandler(IRequestHandler handler) { string httpMethod = handler.HttpMethod; string path = handler.Path; string handlerKey = GetHandlerKey(httpMethod, path); lock (m_streamHandlers) { if (!m_streamHandlers.ContainsKey(handlerKey)) { // m_log.DebugFormat("[BASE HTTP SERVER]: Adding handler key {0}", handlerKey); m_streamHandlers.Add(handlerKey, handler); } } } public List GetStreamHandlerKeys() { lock (m_streamHandlers) return new List(m_streamHandlers.Keys); } private static string GetHandlerKey(string httpMethod, string path) { return httpMethod + ":" + path; } public bool AddXmlRPCHandler(string method, XmlRpcMethod handler) { return AddXmlRPCHandler(method, handler, true); } public bool AddXmlRPCHandler(string method, XmlRpcMethod handler, bool keepAlive) { lock (m_rpcHandlers) { m_rpcHandlers[method] = handler; m_rpcHandlersKeepAlive[method] = keepAlive; // default } return true; } public XmlRpcMethod GetXmlRPCHandler(string method) { lock (m_rpcHandlers) { if (m_rpcHandlers.ContainsKey(method)) { return m_rpcHandlers[method]; } else { return null; } } } public List GetXmlRpcHandlerKeys() { lock (m_rpcHandlers) return new List(m_rpcHandlers.Keys); } public bool AddHTTPHandler(string methodName, GenericHTTPMethod handler) { //m_log.DebugFormat("[BASE HTTP SERVER]: Registering {0}", methodName); lock (m_HTTPHandlers) { if (!m_HTTPHandlers.ContainsKey(methodName)) { m_HTTPHandlers.Add(methodName, handler); return true; } } //must already have a handler for that path so return false return false; } public List GetHTTPHandlerKeys() { lock (m_HTTPHandlers) return new List(m_HTTPHandlers.Keys); } public bool AddPollServiceHTTPHandler(string methodName, PollServiceEventArgs args) { lock (m_pollHandlers) { if (!m_pollHandlers.ContainsKey(methodName)) { m_pollHandlers.Add(methodName, args); return true; } } return false; } public List GetPollServiceHandlerKeys() { lock (m_pollHandlers) return new List(m_pollHandlers.Keys); } // Note that the agent string is provided simply to differentiate // the handlers - it is NOT required to be an actual agent header // value. public bool AddAgentHandler(string agent, IHttpAgentHandler handler) { lock (m_agentHandlers) { if (!m_agentHandlers.ContainsKey(agent)) { m_agentHandlers.Add(agent, handler); return true; } } //must already have a handler for that path so return false return false; } public List GetAgentHandlerKeys() { lock (m_agentHandlers) return new List(m_agentHandlers.Keys); } public bool AddLLSDHandler(string path, LLSDMethod handler) { lock (m_llsdHandlers) { if (!m_llsdHandlers.ContainsKey(path)) { m_llsdHandlers.Add(path, handler); return true; } } return false; } public List GetLLSDHandlerKeys() { lock (m_llsdHandlers) return new List(m_llsdHandlers.Keys); } public bool SetDefaultLLSDHandler(DefaultLLSDMethod handler) { m_defaultLlsdHandler = handler; return true; } private void OnRequest(object source, RequestEventArgs args) { try { IHttpClientContext context = (IHttpClientContext)source; IHttpRequest request = args.Request; PollServiceEventArgs psEvArgs; if (TryGetPollServiceHTTPHandler(request.UriPath.ToString(), out psEvArgs)) { PollServiceHttpRequest psreq = new PollServiceHttpRequest(psEvArgs, context, request); if (psEvArgs.Request != null) { OSHttpRequest req = new OSHttpRequest(context, request); Stream requestStream = req.InputStream; Encoding encoding = Encoding.UTF8; StreamReader reader = new StreamReader(requestStream, encoding); string requestBody = reader.ReadToEnd(); Hashtable keysvals = new Hashtable(); Hashtable headervals = new Hashtable(); string[] querystringkeys = req.QueryString.AllKeys; string[] rHeaders = req.Headers.AllKeys; keysvals.Add("body", requestBody); keysvals.Add("uri", req.RawUrl); keysvals.Add("content-type", req.ContentType); keysvals.Add("http-method", req.HttpMethod); foreach (string queryname in querystringkeys) { keysvals.Add(queryname, req.QueryString[queryname]); } foreach (string headername in rHeaders) { headervals[headername] = req.Headers[headername]; } keysvals.Add("headers", headervals); keysvals.Add("querystringkeys", querystringkeys); psEvArgs.Request(psreq.RequestID, keysvals); } m_PollServiceManager.Enqueue(psreq); } else { OnHandleRequestIOThread(context, request); } } catch (Exception e) { m_log.Error(String.Format("[BASE HTTP SERVER]: OnRequest() failed: {0} ", e.Message), e); } } public void OnHandleRequestIOThread(IHttpClientContext context, IHttpRequest request) { OSHttpRequest req = new OSHttpRequest(context, request); OSHttpResponse resp = new OSHttpResponse(new HttpResponse(context, request),context); HandleRequest(req, resp); // !!!HACK ALERT!!! // There seems to be a bug in the underlying http code that makes subsequent requests // come up with trash in Accept headers. Until that gets fixed, we're cleaning them up here. if (request.AcceptTypes != null) for (int i = 0; i < request.AcceptTypes.Length; i++) request.AcceptTypes[i] = string.Empty; } // public void ConvertIHttpClientContextToOSHttp(object stateinfo) // { // HttpServerContextObj objstate = (HttpServerContextObj)stateinfo; // OSHttpRequest request = objstate.oreq; // OSHttpResponse resp = objstate.oresp; // HandleRequest(request,resp); // } /// /// This methods is the start of incoming HTTP request handling. /// /// /// public virtual void HandleRequest(OSHttpRequest request, OSHttpResponse response) { if (request.HttpMethod == String.Empty) // Can't handle empty requests, not wasting a thread { try { SendHTML500(response); } catch { } return; } string requestMethod = request.HttpMethod; string uriString = request.RawUrl; // string reqnum = "unknown"; int requestStartTick = Environment.TickCount; // Will be adjusted later on. int requestEndTick = requestStartTick; IRequestHandler requestHandler = null; try { // OpenSim.Framework.WebUtil.OSHeaderRequestID // if (request.Headers["opensim-request-id"] != null) // reqnum = String.Format("{0}:{1}",request.RemoteIPEndPoint,request.Headers["opensim-request-id"]); //m_log.DebugFormat("[BASE HTTP SERVER]: <{0}> handle request for {1}",reqnum,request.RawUrl); Thread.CurrentThread.CurrentCulture = new CultureInfo("en-US", true); // This is the REST agent interface. We require an agent to properly identify // itself. If the REST handler recognizes the prefix it will attempt to // satisfy the request. If it is not recognizable, and no damage has occurred // the request can be passed through to the other handlers. This is a low // probability event; if a request is matched it is normally expected to be // handled IHttpAgentHandler agentHandler; if (TryGetAgentHandler(request, response, out agentHandler)) { if (HandleAgentRequest(agentHandler, request, response)) { requestEndTick = Environment.TickCount; return; } } //response.KeepAlive = true; response.SendChunked = false; string path = request.RawUrl; string handlerKey = GetHandlerKey(request.HttpMethod, path); byte[] buffer = null; if (TryGetStreamHandler(handlerKey, out requestHandler)) { if (DebugLevel >= 3) LogIncomingToStreamHandler(request, requestHandler); response.ContentType = requestHandler.ContentType; // Lets do this defaulting before in case handler has varying content type. if (requestHandler is IStreamedRequestHandler) { IStreamedRequestHandler streamedRequestHandler = requestHandler as IStreamedRequestHandler; buffer = streamedRequestHandler.Handle(path, request.InputStream, request, response); } else if (requestHandler is IGenericHTTPHandler) { //m_log.Debug("[BASE HTTP SERVER]: Found Caps based HTTP Handler"); IGenericHTTPHandler HTTPRequestHandler = requestHandler as IGenericHTTPHandler; Stream requestStream = request.InputStream; Encoding encoding = Encoding.UTF8; StreamReader reader = new StreamReader(requestStream, encoding); string requestBody = reader.ReadToEnd(); reader.Close(); //requestStream.Close(); Hashtable keysvals = new Hashtable(); Hashtable headervals = new Hashtable(); //string host = String.Empty; string[] querystringkeys = request.QueryString.AllKeys; string[] rHeaders = request.Headers.AllKeys; foreach (string queryname in querystringkeys) { keysvals.Add(queryname, request.QueryString[queryname]); } foreach (string headername in rHeaders) { //m_log.Warn("[HEADER]: " + headername + "=" + request.Headers[headername]); headervals[headername] = request.Headers[headername]; } // if (headervals.Contains("Host")) // { // host = (string)headervals["Host"]; // } keysvals.Add("requestbody", requestBody); keysvals.Add("headers",headervals); if (keysvals.Contains("method")) { //m_log.Warn("[HTTP]: Contains Method"); //string method = (string)keysvals["method"]; //m_log.Warn("[HTTP]: " + requestBody); } buffer = DoHTTPGruntWork(HTTPRequestHandler.Handle(path, keysvals), response); } else { IStreamHandler streamHandler = (IStreamHandler)requestHandler; using (MemoryStream memoryStream = new MemoryStream()) { streamHandler.Handle(path, request.InputStream, memoryStream, request, response); memoryStream.Flush(); buffer = memoryStream.ToArray(); } } } else { switch (request.ContentType) { case null: case "text/html": if (DebugLevel >= 3) m_log.DebugFormat( "[BASE HTTP SERVER]: Found a {0} content type handler for {1} {2}", request.ContentType, request.HttpMethod, request.Url.PathAndQuery); buffer = HandleHTTPRequest(request, response); break; case "application/llsd+xml": case "application/xml+llsd": case "application/llsd+json": if (DebugLevel >= 3) m_log.DebugFormat( "[BASE HTTP SERVER]: Found a {0} content type handler for {1} {2}", request.ContentType, request.HttpMethod, request.Url.PathAndQuery); buffer = HandleLLSDRequests(request, response); break; case "text/xml": case "application/xml": case "application/json": default: //m_log.Info("[Debug BASE HTTP SERVER]: in default handler"); // Point of note.. the DoWeHaveA methods check for an EXACT path // if (request.RawUrl.Contains("/CAPS/EQG")) // { // int i = 1; // } //m_log.Info("[Debug BASE HTTP SERVER]: Checking for LLSD Handler"); if (DoWeHaveALLSDHandler(request.RawUrl)) { if (DebugLevel >= 3) LogIncomingToContentTypeHandler(request); buffer = HandleLLSDRequests(request, response); } // m_log.DebugFormat("[BASE HTTP SERVER]: Checking for HTTP Handler for request {0}", request.RawUrl); else if (DoWeHaveAHTTPHandler(request.RawUrl)) { if (DebugLevel >= 3) LogIncomingToContentTypeHandler(request); buffer = HandleHTTPRequest(request, response); } else { if (DebugLevel >= 3) LogIncomingToXmlRpcHandler(request); // generic login request. buffer = HandleXmlRpcRequests(request, response); } break; } } request.InputStream.Close(); if (buffer != null) { if (!response.SendChunked) response.ContentLength64 = buffer.LongLength; response.OutputStream.Write(buffer, 0, buffer.Length); } // Do not include the time taken to actually send the response to the caller in the measurement // time. This is to avoid logging when it's the client that is slow to process rather than the // server requestEndTick = Environment.TickCount; response.Send(); //response.OutputStream.Close(); //response.FreeContext(); } catch (SocketException e) { // At least on linux, it appears that if the client makes a request without requiring the response, // an unconnected socket exception is thrown when we close the response output stream. There's no // obvious way to tell if the client didn't require the response, so instead we'll catch and ignore // the exception instead. // // An alternative may be to turn off all response write exceptions on the HttpListener, but let's go // with the minimum first m_log.Warn(String.Format("[BASE HTTP SERVER]: HandleRequest threw {0}.\nNOTE: this may be spurious on Linux ", e.Message), e); } catch (IOException e) { m_log.Error(String.Format("[BASE HTTP SERVER]: HandleRequest() threw {0} ", e.Message), e); } catch (Exception e) { m_log.Error(String.Format("[BASE HTTP SERVER]: HandleRequest() threw {0} ", e.Message), e); SendHTML500(response); } finally { // Every month or so this will wrap and give bad numbers, not really a problem // since its just for reporting int tickdiff = requestEndTick - requestStartTick; if (tickdiff > 3000) { m_log.InfoFormat( "[BASE HTTP SERVER]: Slow handling of {0} {1} {2} {3} from {4} took {5}ms", requestMethod, uriString, requestHandler != null ? requestHandler.Name : "", requestHandler != null ? requestHandler.Description : "", request.RemoteIPEndPoint.ToString(), tickdiff); } } } private void LogIncomingToStreamHandler(OSHttpRequest request, IRequestHandler requestHandler) { m_log.DebugFormat( "[BASE HTTP SERVER]: Found stream handler for {0} {1} {2} {3}", request.HttpMethod, request.Url.PathAndQuery, requestHandler.Name, requestHandler.Description); if (DebugLevel >= 4) LogIncomingInDetail(request); } private void LogIncomingToContentTypeHandler(OSHttpRequest request) { m_log.DebugFormat( "[BASE HTTP SERVER]: Found a {0} content type handler for {1} {2}", request.ContentType, request.HttpMethod, request.Url.PathAndQuery); if (DebugLevel >= 4) LogIncomingInDetail(request); } private void LogIncomingToXmlRpcHandler(OSHttpRequest request) { m_log.DebugFormat( "[BASE HTTP SERVER]: Assuming a generic XMLRPC request for {0} {1}", request.HttpMethod, request.Url.PathAndQuery); if (DebugLevel >= 4) LogIncomingInDetail(request); } private void LogIncomingInDetail(OSHttpRequest request) { using (StreamReader reader = new StreamReader(Util.Copy(request.InputStream), Encoding.UTF8)) { string output; if (DebugLevel == 4) { const int sampleLength = 80; char[] sampleChars = new char[sampleLength]; reader.Read(sampleChars, 0, sampleLength); output = string.Format("[BASE HTTP SERVER]: {0}...", sampleChars); } else { output = string.Format("[BASE HTTP SERVER]: {0}", reader.ReadToEnd()); } m_log.Debug(output); } } private bool TryGetStreamHandler(string handlerKey, out IRequestHandler streamHandler) { string bestMatch = null; lock (m_streamHandlers) { 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 TryGetPollServiceHTTPHandler(string handlerKey, out PollServiceEventArgs oServiceEventArgs) { string bestMatch = null; lock (m_pollHandlers) { foreach (string pattern in m_pollHandlers.Keys) { if (handlerKey.StartsWith(pattern)) { if (String.IsNullOrEmpty(bestMatch) || pattern.Length > bestMatch.Length) { bestMatch = pattern; } } } if (String.IsNullOrEmpty(bestMatch)) { oServiceEventArgs = null; return false; } else { oServiceEventArgs = m_pollHandlers[bestMatch]; return true; } } } private bool TryGetHTTPHandler(string handlerKey, out GenericHTTPMethod HTTPHandler) { // m_log.DebugFormat("[BASE HTTP HANDLER]: Looking for HTTP handler for {0}", handlerKey); string bestMatch = null; lock (m_HTTPHandlers) { 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 bool TryGetAgentHandler(OSHttpRequest request, OSHttpResponse response, out IHttpAgentHandler agentHandler) { agentHandler = null; lock (m_agentHandlers) { foreach (IHttpAgentHandler handler in m_agentHandlers.Values) { if (handler.Match(request, response)) { agentHandler = handler; return true; } } } return false; } /// /// Try all the registered xmlrpc handlers when an xmlrpc request is received. /// Sends back an XMLRPC unknown request response if no handler is registered for the requested method. /// /// /// private byte[] HandleXmlRpcRequests(OSHttpRequest request, OSHttpResponse response) { Stream requestStream = request.InputStream; Encoding encoding = Encoding.UTF8; StreamReader reader = new StreamReader(requestStream, encoding); string requestBody = reader.ReadToEnd(); reader.Close(); requestStream.Close(); //m_log.Debug(requestBody); requestBody = requestBody.Replace("", ""); string responseString = String.Empty; XmlRpcRequest xmlRprcRequest = null; try { xmlRprcRequest = (XmlRpcRequest) (new XmlRpcRequestDeserializer()).Deserialize(requestBody); } catch (XmlException e) { if (DebugLevel >= 1) { if (DebugLevel >= 2) m_log.Warn( string.Format( "[BASE HTTP SERVER]: Got XMLRPC request with invalid XML from {0}. XML was '{1}'. Sending blank response. Exception ", request.RemoteIPEndPoint, requestBody), e); else { m_log.WarnFormat( "[BASE HTTP SERVER]: Got XMLRPC request with invalid XML from {0}, length {1}. Sending blank response.", request.RemoteIPEndPoint, requestBody.Length); } } } if (xmlRprcRequest != null) { string methodName = xmlRprcRequest.MethodName; if (methodName != null) { xmlRprcRequest.Params.Add(request.RemoteIPEndPoint); // Param[1] XmlRpcResponse xmlRpcResponse; XmlRpcMethod method; bool methodWasFound; bool keepAlive = false; lock (m_rpcHandlers) { methodWasFound = m_rpcHandlers.TryGetValue(methodName, out method); if (methodWasFound) keepAlive = m_rpcHandlersKeepAlive[methodName]; } if (methodWasFound) { xmlRprcRequest.Params.Add(request.Url); // Param[2] string xff = "X-Forwarded-For"; string xfflower = xff.ToLower(); foreach (string s in request.Headers.AllKeys) { if (s != null && s.Equals(xfflower)) { xff = xfflower; break; } } xmlRprcRequest.Params.Add(request.Headers.Get(xff)); // Param[3] try { xmlRpcResponse = method(xmlRprcRequest, request.RemoteIPEndPoint); } catch(Exception e) { string errorMessage = String.Format( "Requested method [{0}] from {1} threw exception: {2} {3}", methodName, request.RemoteIPEndPoint.Address, e.Message, e.StackTrace); m_log.ErrorFormat("[BASE HTTP SERVER]: {0}", errorMessage); // if the registered XmlRpc method threw an exception, we pass a fault-code along xmlRpcResponse = new XmlRpcResponse(); // Code probably set in accordance with http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php xmlRpcResponse.SetFault(-32603, errorMessage); } // if the method wasn't found, we can't determine KeepAlive state anyway, so lets do it only here response.KeepAlive = keepAlive; } else { xmlRpcResponse = new XmlRpcResponse(); // Code set in accordance with http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php xmlRpcResponse.SetFault( XmlRpcErrorCodes.SERVER_ERROR_METHOD, String.Format("Requested method [{0}] not found", methodName)); } response.ContentType = "text/xml"; responseString = XmlRpcResponseSerializer.Singleton.Serialize(xmlRpcResponse); } else { //HandleLLSDRequests(request, response); response.ContentType = "text/plain"; response.StatusCode = 404; response.StatusDescription = "Not Found"; response.ProtocolVersion = "HTTP/1.0"; responseString = "Not found"; response.KeepAlive = false; m_log.ErrorFormat( "[BASE HTTP SERVER]: Handler not found for http request {0} {1}", request.HttpMethod, request.Url.PathAndQuery); } } byte[] buffer = Encoding.UTF8.GetBytes(responseString); response.SendChunked = false; response.ContentLength64 = buffer.Length; response.ContentEncoding = Encoding.UTF8; return buffer; } private byte[] HandleLLSDRequests(OSHttpRequest request, OSHttpResponse response) { //m_log.Warn("[BASE HTTP SERVER]: We've figured out it's a LLSD Request"); Stream requestStream = request.InputStream; Encoding encoding = Encoding.UTF8; StreamReader reader = new StreamReader(requestStream, encoding); string requestBody = reader.ReadToEnd(); reader.Close(); requestStream.Close(); //m_log.DebugFormat("[OGP]: {0}:{1}", request.RawUrl, requestBody); response.KeepAlive = true; OSD llsdRequest = null; OSD llsdResponse = null; bool LegacyLLSDLoginLibOMV = (requestBody.Contains("passwd") && requestBody.Contains("mac") && requestBody.Contains("viewer_digest")); if (requestBody.Length == 0) // Get Request { requestBody = "requestget"; } try { llsdRequest = OSDParser.Deserialize(requestBody); } catch (Exception ex) { m_log.Warn("[BASE HTTP SERVER]: Error - " + ex.Message); } if (llsdRequest != null)// && m_defaultLlsdHandler != null) { LLSDMethod llsdhandler = null; if (TryGetLLSDHandler(request.RawUrl, out llsdhandler) && !LegacyLLSDLoginLibOMV) { // we found a registered llsd handler to service this request llsdResponse = llsdhandler(request.RawUrl, llsdRequest, request.RemoteIPEndPoint.ToString()); } else { // we didn't find a registered llsd handler to service this request // check if we have a default llsd handler if (m_defaultLlsdHandler != null) { // LibOMV path llsdResponse = m_defaultLlsdHandler(llsdRequest, request.RemoteIPEndPoint); } else { // Oops, no handler for this.. give em the failed message llsdResponse = GenerateNoLLSDHandlerResponse(); } } } else { llsdResponse = GenerateNoLLSDHandlerResponse(); } byte[] buffer = new byte[0]; if (llsdResponse.ToString() == "shutdown404!") { response.ContentType = "text/plain"; response.StatusCode = 404; response.StatusDescription = "Not Found"; response.ProtocolVersion = "HTTP/1.0"; buffer = Encoding.UTF8.GetBytes("Not found"); } else { // Select an appropriate response format buffer = BuildLLSDResponse(request, response, llsdResponse); } response.SendChunked = false; response.ContentLength64 = buffer.Length; response.ContentEncoding = Encoding.UTF8; response.KeepAlive = true; return buffer; } private byte[] BuildLLSDResponse(OSHttpRequest request, OSHttpResponse response, OSD llsdResponse) { if (request.AcceptTypes != null && request.AcceptTypes.Length > 0) { foreach (string strAccept in request.AcceptTypes) { switch (strAccept) { case "application/llsd+xml": case "application/xml": case "text/xml": response.ContentType = strAccept; return OSDParser.SerializeLLSDXmlBytes(llsdResponse); case "application/llsd+json": case "application/json": response.ContentType = strAccept; return Encoding.UTF8.GetBytes(OSDParser.SerializeJsonString(llsdResponse)); } } } if (!String.IsNullOrEmpty(request.ContentType)) { switch (request.ContentType) { case "application/llsd+xml": case "application/xml": case "text/xml": response.ContentType = request.ContentType; return OSDParser.SerializeLLSDXmlBytes(llsdResponse); case "application/llsd+json": case "application/json": response.ContentType = request.ContentType; return Encoding.UTF8.GetBytes(OSDParser.SerializeJsonString(llsdResponse)); } } // response.ContentType = "application/llsd+json"; // return Util.UTF8.GetBytes(OSDParser.SerializeJsonString(llsdResponse)); response.ContentType = "application/llsd+xml"; return OSDParser.SerializeLLSDXmlBytes(llsdResponse); } /// /// Checks if we have an Exact path in the LLSD handlers for the path provided /// /// URI of the request /// true if we have one, false if not private bool DoWeHaveALLSDHandler(string path) { string[] pathbase = path.Split('/'); string searchquery = "/"; if (pathbase.Length < 1) return false; for (int i = 1; i < pathbase.Length; i++) { searchquery += pathbase[i]; if (pathbase.Length - 1 != i) searchquery += "/"; } string bestMatch = null; lock (m_llsdHandlers) { foreach (string pattern in m_llsdHandlers.Keys) { if (searchquery.StartsWith(pattern) && searchquery.Length >= pattern.Length) bestMatch = pattern; } } // extra kicker to remove the default XMLRPC login case.. just in case.. if (path != "/" && bestMatch == "/" && searchquery != "/") return false; if (path == "/") return false; if (String.IsNullOrEmpty(bestMatch)) { return false; } else { return true; } } /// /// Checks if we have an Exact path in the HTTP handlers for the path provided /// /// URI of the request /// true if we have one, false if not private bool DoWeHaveAHTTPHandler(string path) { string[] pathbase = path.Split('/'); string searchquery = "/"; if (pathbase.Length < 1) return false; for (int i = 1; i < pathbase.Length; i++) { searchquery += pathbase[i]; if (pathbase.Length - 1 != i) searchquery += "/"; } string bestMatch = null; //m_log.DebugFormat("[BASE HTTP HANDLER]: Checking if we have an HTTP handler for {0}", searchquery); lock (m_HTTPHandlers) { foreach (string pattern in m_HTTPHandlers.Keys) { if (searchquery.StartsWith(pattern) && searchquery.Length >= pattern.Length) { bestMatch = pattern; } } // extra kicker to remove the default XMLRPC login case.. just in case.. if (path == "/") return false; if (String.IsNullOrEmpty(bestMatch)) { return false; } else { return true; } } } private bool TryGetLLSDHandler(string path, out LLSDMethod llsdHandler) { llsdHandler = null; // Pull out the first part of the path // splitting the path by '/' means we'll get the following return.. // {0}/{1}/{2} // where {0} isn't something we really control 100% string[] pathbase = path.Split('/'); string searchquery = "/"; if (pathbase.Length < 1) return false; for (int i=1; i bestMatch.Length) { // You have to specifically register for '/' and to get it, you must specificaly request it // if (pattern == "/" && searchquery == "/" || pattern != "/") bestMatch = pattern; } } } if (String.IsNullOrEmpty(bestMatch)) { llsdHandler = null; return false; } else { llsdHandler = m_llsdHandlers[bestMatch]; return true; } } } private OSDMap GenerateNoLLSDHandlerResponse() { OSDMap map = new OSDMap(); map["reason"] = OSD.FromString("LLSDRequest"); map["message"] = OSD.FromString("No handler registered for LLSD Requests"); map["login"] = OSD.FromString("false"); return map; } /// /// A specific agent handler was provided. Such a handler is expecetd to have an /// intimate, and highly specific relationship with the client. Consequently, /// nothing is done here. /// /// /// /// private bool HandleAgentRequest(IHttpAgentHandler handler, OSHttpRequest request, OSHttpResponse response) { // In the case of REST, then handler is responsible for ALL aspects of // the request/response handling. Nothing is done here, not even encoding. try { return handler.Handle(request, response); } catch (Exception e) { // If the handler did in fact close the stream, then this will blow // chunks. So that that doesn't disturb anybody we throw away any // and all exceptions raised. We've done our best to release the // client. try { m_log.Warn("[HTTP-AGENT]: Error - " + e.Message); response.SendChunked = false; response.KeepAlive = true; response.StatusCode = (int)OSHttpStatusCode.ServerErrorInternalError; //response.OutputStream.Close(); try { response.Send(); //response.FreeContext(); } catch (SocketException f) { // This has to be here to prevent a Linux/Mono crash m_log.Warn( String.Format("[BASE HTTP SERVER]: XmlRpcRequest issue {0}.\nNOTE: this may be spurious on Linux. ", f.Message), f); } } catch(Exception) { } } // Indicate that the request has been "handled" return true; } public byte[] HandleHTTPRequest(OSHttpRequest request, OSHttpResponse response) { // m_log.DebugFormat( // "[BASE HTTP SERVER]: HandleHTTPRequest for request to {0}, method {1}", // request.RawUrl, request.HttpMethod); switch (request.HttpMethod) { case "OPTIONS": response.StatusCode = (int)OSHttpStatusCode.SuccessOk; return null; default: return HandleContentVerbs(request, response); } } private byte[] HandleContentVerbs(OSHttpRequest request, OSHttpResponse response) { // m_log.DebugFormat("[BASE HTTP SERVER]: HandleContentVerbs for request to {0}", request.RawUrl); // 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. byte[] buffer; Stream requestStream = request.InputStream; Encoding encoding = Encoding.UTF8; StreamReader reader = new StreamReader(requestStream, encoding); string requestBody = reader.ReadToEnd(); // avoid warning for now reader.ReadToEnd(); reader.Close(); requestStream.Close(); Hashtable keysvals = new Hashtable(); Hashtable headervals = new Hashtable(); Hashtable requestVars = new Hashtable(); string host = String.Empty; string[] querystringkeys = request.QueryString.AllKeys; string[] rHeaders = request.Headers.AllKeys; keysvals.Add("body", requestBody); keysvals.Add("uri", request.RawUrl); keysvals.Add("content-type", request.ContentType); keysvals.Add("http-method", request.HttpMethod); foreach (string queryname in querystringkeys) { // m_log.DebugFormat( // "[BASE HTTP SERVER]: Got query paremeter {0}={1}", queryname, request.QueryString[queryname]); keysvals.Add(queryname, request.QueryString[queryname]); requestVars.Add(queryname, keysvals[queryname]); } foreach (string headername in rHeaders) { // m_log.Debug("[BASE HTTP SERVER]: " + headername + "=" + request.Headers[headername]); headervals[headername] = request.Headers[headername]; } if (headervals.Contains("Host")) { host = (string)headervals["Host"]; } keysvals.Add("headers", headervals); keysvals.Add("querystringkeys", querystringkeys); keysvals.Add("requestvars", requestVars); // keysvals.Add("form", request.Form); if (keysvals.Contains("method")) { // m_log.Debug("[BASE HTTP SERVER]: Contains Method"); string method = (string) keysvals["method"]; // m_log.Debug("[BASE HTTP SERVER]: " + requestBody); GenericHTTPMethod requestprocessor; bool foundHandler = TryGetHTTPHandler(method, out requestprocessor); if (foundHandler) { Hashtable responsedata1 = requestprocessor(keysvals); buffer = DoHTTPGruntWork(responsedata1,response); //SendHTML500(response); } else { // m_log.Warn("[BASE HTTP SERVER]: Handler Not Found"); buffer = SendHTML404(response, host); } } else { GenericHTTPMethod requestprocessor; bool foundHandler = TryGetHTTPHandlerPathBased(request.RawUrl, out requestprocessor); if (foundHandler) { Hashtable responsedata2 = requestprocessor(keysvals); buffer = DoHTTPGruntWork(responsedata2, response); //SendHTML500(response); } else { // m_log.Warn("[BASE HTTP SERVER]: Handler Not Found2"); buffer = SendHTML404(response, host); } } return buffer; } private bool TryGetHTTPHandlerPathBased(string path, out GenericHTTPMethod httpHandler) { httpHandler = null; // Pull out the first part of the path // splitting the path by '/' means we'll get the following return.. // {0}/{1}/{2} // where {0} isn't something we really control 100% string[] pathbase = path.Split('/'); string searchquery = "/"; if (pathbase.Length < 1) return false; for (int i = 1; i < pathbase.Length; i++) { searchquery += pathbase[i]; if (pathbase.Length - 1 != i) searchquery += "/"; } // while the matching algorithm below doesn't require it, we're expecting a query in the form // // [] = optional // /resource/UUID/action[/action] // // now try to get the closest match to the reigstered path // at least for OGP, registered path would probably only consist of the /resource/ string bestMatch = null; // m_log.DebugFormat( // "[BASE HTTP HANDLER]: TryGetHTTPHandlerPathBased() looking for HTTP handler to match {0}", searchquery); lock (m_HTTPHandlers) { foreach (string pattern in m_HTTPHandlers.Keys) { if (searchquery.ToLower().StartsWith(pattern.ToLower())) { if (String.IsNullOrEmpty(bestMatch) || searchquery.Length > bestMatch.Length) { // You have to specifically register for '/' and to get it, you must specifically request it if (pattern == "/" && searchquery == "/" || pattern != "/") bestMatch = pattern; } } } if (String.IsNullOrEmpty(bestMatch)) { httpHandler = null; return false; } else { if (bestMatch == "/" && searchquery != "/") return false; httpHandler = m_HTTPHandlers[bestMatch]; return true; } } } internal byte[] DoHTTPGruntWork(Hashtable responsedata, OSHttpResponse response) { //m_log.Info("[BASE HTTP SERVER]: Doing HTTP Grunt work with response"); int responsecode = (int)responsedata["int_response_code"]; string responseString = (string)responsedata["str_response_string"]; string contentType = (string)responsedata["content_type"]; if (responsedata.ContainsKey("error_status_text")) { response.StatusDescription = (string)responsedata["error_status_text"]; } if (responsedata.ContainsKey("http_protocol_version")) { response.ProtocolVersion = (string)responsedata["http_protocol_version"]; } if (responsedata.ContainsKey("keepalive")) { bool keepalive = (bool)responsedata["keepalive"]; response.KeepAlive = keepalive; } if (responsedata.ContainsKey("reusecontext")) response.ReuseContext = (bool) responsedata["reusecontext"]; // Cross-Origin Resource Sharing with simple requests if (responsedata.ContainsKey("access_control_allow_origin")) response.AddHeader("Access-Control-Allow-Origin", (string)responsedata["access_control_allow_origin"]); //Even though only one other part of the entire code uses HTTPHandlers, we shouldn't expect this //and should check for NullReferenceExceptions if (string.IsNullOrEmpty(contentType)) { contentType = "text/html"; } // The client ignores anything but 200 here for web login, so ensure that this is 200 for that response.StatusCode = responsecode; if (responsecode == (int)OSHttpStatusCode.RedirectMovedPermanently) { response.RedirectLocation = (string)responsedata["str_redirect_location"]; response.StatusCode = responsecode; } response.AddHeader("Content-Type", contentType); byte[] buffer; if (!(contentType.Contains("image") || contentType.Contains("x-shockwave-flash") || contentType.Contains("application/x-oar") || contentType.Contains("application/vnd.ll.mesh"))) { // Text buffer = Encoding.UTF8.GetBytes(responseString); } else { // Binary! buffer = Convert.FromBase64String(responseString); } response.SendChunked = false; response.ContentLength64 = buffer.Length; response.ContentEncoding = Encoding.UTF8; return buffer; } public byte[] SendHTML404(OSHttpResponse response, string host) { // I know this statuscode is dumb, but the client doesn't respond to 404s and 500s response.StatusCode = 404; response.AddHeader("Content-type", "text/html"); string responseString = GetHTTP404(host); byte[] buffer = Encoding.UTF8.GetBytes(responseString); response.SendChunked = false; response.ContentLength64 = buffer.Length; response.ContentEncoding = Encoding.UTF8; return buffer; } public byte[] SendHTML500(OSHttpResponse response) { // I know this statuscode is dumb, but the client doesn't respond to 404s and 500s response.StatusCode = (int)OSHttpStatusCode.SuccessOk; 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; return buffer; } public void Start() { StartHTTP(); } private void StartHTTP() { m_log.InfoFormat( "[BASE HTTP SERVER]: Starting {0} server on port {1}", UseSSL ? "HTTPS" : "HTTP", Port); try { //m_httpListener = new HttpListener(); NotSocketErrors = 0; if (!m_ssl) { //m_httpListener.Prefixes.Add("http://+:" + m_port + "/"); //m_httpListener.Prefixes.Add("http://10.1.1.5:" + m_port + "/"); m_httpListener2 = CoolHTTPListener.Create(m_listenIPAddress, (int)m_port); m_httpListener2.ExceptionThrown += httpServerException; m_httpListener2.LogWriter = httpserverlog; // Uncomment this line in addition to those in HttpServerLogWriter // if you want more detailed trace information from the HttpServer //m_httpListener2.UseTraceLogs = true; //m_httpListener2.DisconnectHandler = httpServerDisconnectMonitor; } else { //m_httpListener.Prefixes.Add("https://+:" + (m_sslport) + "/"); //m_httpListener.Prefixes.Add("http://+:" + m_port + "/"); m_httpListener2 = CoolHTTPListener.Create(IPAddress.Any, (int)m_port, m_cert); m_httpListener2.ExceptionThrown += httpServerException; m_httpListener2.LogWriter = httpserverlog; } m_httpListener2.RequestReceived += OnRequest; //m_httpListener.Start(); m_httpListener2.Start(64); // Long Poll Service Manager with 3 worker threads a 25 second timeout for no events m_PollServiceManager = new PollServiceRequestManager(this, 3, 25000); HTTPDRunning = true; //HttpListenerContext context; //while (true) //{ // context = m_httpListener.GetContext(); // ThreadPool.UnsafeQueueUserWorkItem(new WaitCallback(HandleRequest), context); // } } catch (Exception e) { m_log.Error("[BASE HTTP SERVER]: Error - " + e.Message); m_log.Error("[BASE HTTP SERVER]: Tip: Do you have permission to listen on port " + m_port + ", " + m_sslport + "?"); // We want this exception to halt the entire server since in current configurations we aren't too // useful without inbound HTTP. throw e; } } public void httpServerDisconnectMonitor(IHttpClientContext source, SocketError err) { switch (err) { case SocketError.NotSocket: NotSocketErrors++; break; } } public void httpServerException(object source, Exception exception) { m_log.Error(String.Format("[BASE HTTP SERVER]: {0} had an exception: {1} ", source.ToString(), exception.Message), exception); /* if (HTTPDRunning)// && NotSocketErrors > 5) { Stop(); Thread.Sleep(200); StartHTTP(); m_log.Warn("[HTTPSERVER]: Died. Trying to kick....."); } */ } public void Stop() { HTTPDRunning = false; try { m_httpListener2.ExceptionThrown -= httpServerException; //m_httpListener2.DisconnectHandler = null; m_httpListener2.LogWriter = null; m_httpListener2.RequestReceived -= OnRequest; m_httpListener2.Stop(); } catch (NullReferenceException) { m_log.Warn("[BASE HTTP SERVER]: Null Reference when stopping HttpServer."); } } public void RemoveStreamHandler(string httpMethod, string path) { string handlerKey = GetHandlerKey(httpMethod, path); //m_log.DebugFormat("[BASE HTTP SERVER]: Removing handler key {0}", handlerKey); lock (m_streamHandlers) m_streamHandlers.Remove(handlerKey); } public void RemoveHTTPHandler(string httpMethod, string path) { lock (m_HTTPHandlers) { if (httpMethod != null && httpMethod.Length == 0) { m_HTTPHandlers.Remove(path); return; } m_HTTPHandlers.Remove(GetHandlerKey(httpMethod, path)); } } public void RemovePollServiceHTTPHandler(string httpMethod, string path) { lock (m_pollHandlers) m_pollHandlers.Remove(path); } public bool RemoveAgentHandler(string agent, IHttpAgentHandler handler) { lock (m_agentHandlers) { IHttpAgentHandler foundHandler; if (m_agentHandlers.TryGetValue(agent, out foundHandler) && foundHandler == handler) { m_agentHandlers.Remove(agent); return true; } } return false; } public void RemoveXmlRPCHandler(string method) { lock (m_rpcHandlers) m_rpcHandlers.Remove(method); } public bool RemoveLLSDHandler(string path, LLSDMethod handler) { lock (m_llsdHandlers) { LLSDMethod foundHandler; if (m_llsdHandlers.TryGetValue(path, out foundHandler) && foundHandler == handler) { m_llsdHandlers.Remove(path); return true; } } return false; } public string GetHTTP404(string host) { string file = Path.Combine(".", "http_404.html"); if (!File.Exists(file)) return getDefaultHTTP404(host); StreamReader sr = File.OpenText(file); string result = sr.ReadToEnd(); sr.Close(); return result; } public string GetHTTP500() { string file = Path.Combine(".", "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 static string getDefaultHTTP404(string host) { return "404 Page not found

Ooops!

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

If you are trying to log-in, your link parameters should have: "-loginpage http://" + host + "/?method=login -loginuri http://" + host + "/" in your link

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

Ooops!

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

"; } } public class HttpServerContextObj { public IHttpClientContext context = null; public IHttpRequest req = null; public OSHttpRequest oreq = null; public OSHttpResponse oresp = null; public HttpServerContextObj(IHttpClientContext contxt, IHttpRequest reqs) { context = contxt; req = reqs; } public HttpServerContextObj(OSHttpRequest osreq, OSHttpResponse osresp) { oreq = osreq; oresp = osresp; } } /// /// Relays HttpServer log messages to our own logging mechanism. /// /// To use this you must uncomment the switch section /// /// You may also be able to get additional trace information from HttpServer if you uncomment the UseTraceLogs /// property in StartHttp() for the HttpListener public class HttpServerLogWriter : ILogWriter { // private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); public void Write(object source, LogPrio priority, string message) { /* switch (priority) { case LogPrio.Trace: m_log.DebugFormat("[{0}]: {1}", source, message); break; case LogPrio.Debug: m_log.DebugFormat("[{0}]: {1}", source, message); break; case LogPrio.Error: m_log.ErrorFormat("[{0}]: {1}", source, message); break; case LogPrio.Info: m_log.InfoFormat("[{0}]: {1}", source, message); break; case LogPrio.Warning: m_log.WarnFormat("[{0}]: {1}", source, message); break; case LogPrio.Fatal: m_log.ErrorFormat("[{0}]: FATAL! - {1}", source, message); break; default: break; } */ return; } } }