OpenSimMirror/OpenSim/Framework/Servers/BaseHttpServer.cs

1595 lines
58 KiB
C#

/*
* 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.Net.Sockets;
using System.Reflection;
using System.Text;
using System.Threading;
using System.Xml;
using OpenMetaverse.StructuredData;
using log4net;
using Nwc.XmlRpc;
using CoolHTTPListener = HttpServer.HttpListener;
using IHttpClientContext = HttpServer.IHttpClientContext;
using IHttpRequest = HttpServer.IHttpRequest;
namespace OpenSim.Framework.Servers
{
public class BaseHttpServer
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private HttpServerLogWriter httpserverlog = new HttpServerLogWriter();
private volatile int NotSocketErrors = 0;
private volatile bool HTTPDRunning = false;
protected Thread m_workerThread;
protected HttpListener m_httpListener;
protected CoolHTTPListener m_httpListener2;
protected Dictionary<string, XmlRpcMethod> m_rpcHandlers = new Dictionary<string, XmlRpcMethod>();
protected Dictionary<string, bool> m_rpcHandlersKeepAlive = new Dictionary<string, bool>();
protected DefaultLLSDMethod m_defaultLlsdHandler = null; // <-- Moving away from the monolithic.. and going to /registered/
protected Dictionary<string, LLSDMethod> m_llsdHandlers = new Dictionary<string, LLSDMethod>();
protected Dictionary<string, IRequestHandler> m_streamHandlers = new Dictionary<string, IRequestHandler>();
protected Dictionary<string, GenericHTTPMethod> m_HTTPHandlers = new Dictionary<string, GenericHTTPMethod>();
protected Dictionary<string, IHttpAgentHandler> m_agentHandlers = new Dictionary<string, IHttpAgentHandler>();
protected uint m_port;
protected uint m_sslport;
protected bool m_ssl;
protected bool m_firstcaps = true;
protected string m_SSLCommonName = "";
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 BaseHttpServer(uint port)
{
m_port = port;
}
public BaseHttpServer(uint port, bool ssl)
{
m_ssl = ssl;
m_port = port;
}
public BaseHttpServer(uint port, bool ssl, uint sslport, string CN)
{
m_ssl = ssl;
m_port = port;
if (m_ssl)
{
m_sslport = sslport;
}
}
/// <summary>
/// Add a stream handler to the http server. If the handler already exists, then nothing happens.
/// </summary>
/// <param name="handler"></param>
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);
}
}
}
private static string GetHandlerKey(string httpMethod, string path)
{
return httpMethod + ":" + path;
}
public bool AddXmlRPCHandler(string method, XmlRpcMethod handler)
{
lock (m_rpcHandlers)
{
m_rpcHandlers[method] = handler;
m_rpcHandlersKeepAlive[method] = true; // default
return 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 bool AddHTTPHandler(string method, GenericHTTPMethod handler)
{
lock (m_HTTPHandlers)
{
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;
}
// 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;
}
/// <summary>
/// Adds a LLSD handler, yay.
/// </summary>
/// <param name="path">/resource/ path</param>
/// <param name="handler">handle the LLSD response</param>
/// <returns></returns>
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 bool SetDefaultLLSDHandler(DefaultLLSDMethod handler)
{
m_defaultLlsdHandler = handler;
return true;
}
public void OnHandleRequestIOThread(IHttpClientContext context, IHttpRequest request)
{
OSHttpRequest req = new OSHttpRequest(context, request);
OSHttpResponse resp = new OSHttpResponse(new HttpServer.HttpResponse(context, request));
//resp.KeepAlive = req.KeepAlive;
//m_log.Info("[Debug BASE HTTP SERVER]: Got Request");
//HttpServerContextObj objstate= new HttpServerContextObj(req,resp);
//ThreadPool.QueueUserWorkItem(new WaitCallback(ConvertIHttpClientContextToOSHttp), (object)objstate);
HandleRequest(req, resp);
}
public void ConvertIHttpClientContextToOSHttp(object stateinfo)
{
HttpServerContextObj objstate = (HttpServerContextObj)stateinfo;
//OSHttpRequest request = new OSHttpRequest(objstate.context,objstate.req);
//OSHttpResponse resp = new OSHttpResponse(new HttpServer.HttpResponse(objstate.context, objstate.req));
OSHttpRequest request = objstate.oreq;
OSHttpResponse resp = objstate.oresp;
//OSHttpResponse resp = new OSHttpResponse(new HttpServer.HttpResponse(objstate.context, objstate.req));
/*
request.AcceptTypes = objstate.req.AcceptTypes;
request.ContentLength = (long)objstate.req.ContentLength;
request.Headers = objstate.req.Headers;
request.HttpMethod = objstate.req.Method;
request.InputStream = objstate.req.Body;
foreach (string str in request.Headers)
{
if (str.ToLower().Contains("content-type: "))
{
request.ContentType = str.Substring(13, str.Length - 13);
break;
}
}
//request.KeepAlive = objstate.req.
foreach (HttpServer.HttpInput httpinput in objstate.req.QueryString)
{
request.QueryString.Add(httpinput.Name, httpinput[httpinput.Name]);
}
//request.Query = objstate.req.//objstate.req.QueryString;
//foreach (
//request.QueryString = objstate.req.QueryString;
*/
HandleRequest(request,resp);
}
public virtual void HandleRequest(OSHttpRequest request, OSHttpResponse response)
{
try
{
Culture.SetCurrentCulture();
// 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
//m_log.Info("[Debug BASE HTTP SERVER]: Handling Request" + request.RawUrl);
IHttpAgentHandler agentHandler;
if (TryGetAgentHandler(request, response, out agentHandler))
{
if (HandleAgentRequest(agentHandler, request, response))
{
return;
}
}
IRequestHandler requestHandler;
//response.KeepAlive = true;
response.SendChunked = false;
string path = request.RawUrl;
string handlerKey = GetHandlerKey(request.HttpMethod, path);
//m_log.DebugFormat("[BASE HTTP SERVER]: Handling {0} request for {1}", request.HttpMethod, path);
if (TryGetStreamHandler(handlerKey, out requestHandler))
{
//m_log.Info("[Debug BASE HTTP SERVER]: Found Stream Handler");
// 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, request, response);
}
else if (requestHandler is IGenericHTTPHandler)
{
//m_log.Info("[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);
if (keysvals.Contains("method"))
{
//m_log.Warn("[HTTP]: Contains Method");
//string method = (string)keysvals["method"];
//m_log.Warn("[HTTP]: " + requestBody);
}
DoHTTPGruntWork(HTTPRequestHandler.Handle(path, keysvals), response);
return;
}
else
{
IStreamHandler streamHandler = (IStreamHandler)requestHandler;
using (MemoryStream memoryStream = new MemoryStream())
{
streamHandler.Handle(path, request.InputStream, memoryStream, request, response);
memoryStream.Flush();
buffer = memoryStream.ToArray();
}
}
request.InputStream.Close();
if (!response.IsContentTypeSet) response.ContentType = requestHandler.ContentType;
if (!response.SendChunked)
response.ContentLength64 = buffer.LongLength;
try
{
response.OutputStream.Write(buffer, 0, buffer.Length);
//response.OutputStream.Close();
}
catch (HttpListenerException)
{
m_log.WarnFormat("[BASE HTTP SERVER]: HTTP request abnormally terminated.");
}
//response.OutputStream.Close();
try
{
response.Send();
}
catch (SocketException e)
{
// This has to be here to prevent a Linux/Mono crash
m_log.WarnFormat("[BASE HTTP SERVER] XmlRpcRequest issue {0}.\nNOTE: this may be spurious on Linux.", e);
}
return;
}
if (request.AcceptTypes != null && request.AcceptTypes.Length > 0)
{
foreach (string strAccept in request.AcceptTypes)
{
if (strAccept.Contains("application/llsd+xml"))
{
//m_log.Info("[Debug BASE HTTP SERVER]: Found an application/llsd+xml accept header");
HandleLLSDRequests(request, response);
return;
}
}
}
switch (request.ContentType)
{
case null:
case "text/html":
//m_log.Info("[Debug BASE HTTP SERVER]: found a text/html content type");
HandleHTTPRequest(request, response);
return;
case "application/llsd+xml":
case "application/xml+llsd":
//m_log.Info("[Debug BASE HTTP SERVER]: found a application/llsd+xml content type");
HandleLLSDRequests(request, response);
return;
case "text/xml":
case "application/xml":
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))
{
//m_log.Info("[Debug BASE HTTP SERVER]: Found LLSD Handler");
HandleLLSDRequests(request, response);
return;
}
//m_log.Info("[Debug BASE HTTP SERVER]: Checking for HTTP Handler");
if (DoWeHaveAHTTPHandler(request.RawUrl))
{
//m_log.Info("[Debug BASE HTTP SERVER]: found HTTP Handler");
HandleHTTPRequest(request, response);
return;
}
//m_log.Info("[Debug BASE HTTP SERVER]: Generic XMLRPC");
// generic login request.
HandleXmlRpcRequests(request, response);
return;
}
}
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.WarnFormat("[BASE HTTP SERVER]: HandleRequest threw {0}.\nNOTE: this may be spurious on Linux", e);
}
catch (EndOfStreamException e)
{
m_log.ErrorFormat("[BASE HTTP SERVER]: HandleRequest() threw {0}", e);
}
catch (InvalidOperationException e)
{
m_log.ErrorFormat("[BASE HTTP SERVER]: HandleRequest() threw {0}", e);
SendHTML500(response);
}
}
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 bool TryGetAgentHandler(OSHttpRequest request, OSHttpResponse response, out IHttpAgentHandler agentHandler)
{
agentHandler = null;
try
{
foreach (IHttpAgentHandler handler in m_agentHandlers.Values)
{
if (handler.Match(request, response))
{
agentHandler = handler;
return true;
}
}
}
catch(KeyNotFoundException)
{
}
return false;
}
/// <summary>
/// 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.
/// </summary>
/// <param name="request"></param>
/// <param name="response"></param>
private void 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();
string responseString = String.Empty;
XmlRpcRequest xmlRprcRequest = null;
try
{
xmlRprcRequest = (XmlRpcRequest) (new XmlRpcRequestDeserializer()).Deserialize(requestBody);
}
catch (XmlException)
{
}
if (xmlRprcRequest != null)
{
string methodName = xmlRprcRequest.MethodName;
if (methodName != null)
{
xmlRprcRequest.Params.Add(request.RemoteIPEndPoint); // Param[1]
XmlRpcResponse xmlRpcResponse;
XmlRpcMethod method;
if (m_rpcHandlers.TryGetValue(methodName, out method))
{
xmlRprcRequest.Params.Add(request.Url); // Param[2]
try
{
xmlRpcResponse = method(xmlRprcRequest);
}
catch(Exception e)
{
// 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, String.Format("Requested method [{0}] threw exception: {1}",
methodName, e.Message));
}
// if the method wasn't found, we can't determine KeepAlive state anyway, so lets do it only here
response.KeepAlive = m_rpcHandlersKeepAlive[methodName];
}
else
{
xmlRpcResponse = new XmlRpcResponse();
// Code set in accordance with http://xmlrpc-epi.sourceforge.net/specs/rfc.fault_codes.php
xmlRpcResponse.SetFault(-32601, String.Format("Requested method [{0}] not found", methodName));
}
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";
byte[] buf = Encoding.UTF8.GetBytes("Not found");
response.KeepAlive = false;
m_log.ErrorFormat("[BASE HTTP SERVER] Handler not found for http request {0}", request.RawUrl);
response.SendChunked = false;
response.ContentLength64 = buf.Length;
response.ContentEncoding = Encoding.UTF8;
try
{
response.OutputStream.Write(buf, 0, buf.Length);
}
catch (Exception ex)
{
m_log.Warn("[HTTPD]: Error - " + ex.Message);
}
finally
{
try
{
response.Send();
}
catch (SocketException e)
{
// This has to be here to prevent a Linux/Mono crash
m_log.WarnFormat("[BASE HTTP SERVER] XmlRpcRequest issue {0}.\nNOTE: this may be spurious on Linux.", e);
}
}
return;
//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)
{
m_log.Warn("[HTTPD]: Error - " + ex.Message);
}
finally
{
try
{
response.Send();
}
catch (SocketException e)
{
// This has to be here to prevent a Linux/Mono crash
m_log.WarnFormat("[BASE HTTP SERVER] XmlRpcRequest issue {0}.\nNOTE: this may be spurious on Linux.", e);
}
}
}
private void 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 = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><llsd><map><key>request</key><string>get</string></map></llsd>";
}
try
{
llsdRequest = OSDParser.DeserializeLLSDXml(requestBody);
}
catch (Exception ex)
{
m_log.Warn("[HTTPD]: 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);
}
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
{
response.ContentType = "application/llsd+xml";
//m_log.Info("[Debug BASE HTTP SERVER]: Response: " + llsdResponse.ToString());
buffer = OSDParser.SerializeLLSDXmlBytes(llsdResponse);
}
response.SendChunked = false;
response.ContentLength64 = buffer.Length;
response.ContentEncoding = Encoding.UTF8;
response.KeepAlive = true;
try
{
response.OutputStream.Write(buffer, 0, buffer.Length);
}
catch (Exception ex)
{
m_log.Warn("[HTTPD]: Error - " + ex.Message);
}
finally
{
//response.OutputStream.Close();
try
{
response.Send();
response.OutputStream.Flush();
response.OutputStream.Close();
}
catch (IOException e)
{
m_log.DebugFormat("[BASE HTTP SERVER] LLSD IOException {0}.", e);
}
catch (SocketException e)
{
// This has to be here to prevent a Linux/Mono crash
m_log.WarnFormat("[BASE HTTP SERVER] LLSD issue {0}.\nNOTE: this may be spurious on Linux.", e);
}
}
}
/// <summary>
/// Checks if we have an Exact path in the LLSD handlers for the path provided
/// </summary>
/// <param name="path">URI of the request</param>
/// <returns>true if we have one, false if not</returns>
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;
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;
}
}
/// <summary>
/// Checks if we have an Exact path in the HTTP handlers for the path provided
/// </summary>
/// <param name="path">URI of the request</param>
/// <returns>true if we have one, false if not</returns>
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;
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<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;
foreach (string pattern in m_llsdHandlers.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 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;
}
/// <summary>
/// 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.
/// </summary>
/// <param name="handler"></param>
/// <param name="request"></param>
/// <param name="response"></param>
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();
}
catch (SocketException f)
{
// This has to be here to prevent a Linux/Mono crash
m_log.WarnFormat("[BASE HTTP SERVER] XmlRpcRequest issue {0}.\nNOTE: this may be spurious on Linux.", f);
}
}
catch(Exception)
{
}
}
// Indicate that the request has been "handled"
return true;
}
public void HandleHTTPRequest(OSHttpRequest request, OSHttpResponse response)
{
switch (request.HttpMethod)
{
case "OPTIONS":
response.StatusCode = (int)OSHttpStatusCode.SuccessOk;
return;
default:
HandleContentVerbs(request, response);
return;
}
}
private void HandleContentVerbs(OSHttpRequest request, OSHttpResponse 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();
// avoid warning for now
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;
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)
{
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("headers",headervals);
if (keysvals.Contains("method"))
{
//m_log.Warn("[HTTP]: Contains Method");
string method = (string) keysvals["method"];
//m_log.Warn("[HTTP]: " + requestBody);
GenericHTTPMethod requestprocessor;
bool foundHandler = TryGetHTTPHandler(method, out requestprocessor);
if (foundHandler)
{
Hashtable responsedata1 = requestprocessor(keysvals);
DoHTTPGruntWork(responsedata1,response);
//SendHTML500(response);
}
else
{
//m_log.Warn("[HTTP]: Handler Not Found");
SendHTML404(response, host);
}
}
else
{
GenericHTTPMethod requestprocessor;
bool foundHandler = TryGetHTTPHandlerPathBased(request.RawUrl, out requestprocessor);
if (foundHandler)
{
Hashtable responsedata2 = requestprocessor(keysvals);
DoHTTPGruntWork(responsedata2, response);
//SendHTML500(response);
}
else
{
//m_log.Warn("[HTTP]: Handler Not Found");
SendHTML404(response, host);
}
}
}
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;
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 specificaly 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;
}
}
private static void 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;
}
//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")))
{
buffer = Encoding.UTF8.GetBytes(responseString);
}
else
{
buffer = Convert.FromBase64String(responseString);
}
response.SendChunked = false;
response.ContentLength64 = buffer.Length;
response.ContentEncoding = Encoding.UTF8;
try
{
response.OutputStream.Write(buffer, 0, buffer.Length);
}
catch (Exception ex)
{
m_log.Warn("[HTTPD]: Error - " + ex.Message);
}
finally
{
//response.OutputStream.Close();
try
{
response.Send();
}
catch (SocketException e)
{
// This has to be here to prevent a Linux/Mono crash
m_log.WarnFormat("[BASE HTTP SERVER] XmlRpcRequest issue {0}.\nNOTE: this may be spurious on Linux.", e);
}
}
}
public void 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;
try
{
response.OutputStream.Write(buffer, 0, buffer.Length);
}
catch (Exception ex)
{
m_log.Warn("[HTTPD]: Error - " + ex.Message);
}
finally
{
//response.OutputStream.Close();
try
{
response.Send();
}
catch (SocketException e)
{
// This has to be here to prevent a Linux/Mono crash
m_log.WarnFormat("[BASE HTTP SERVER] XmlRpcRequest issue {0}.\nNOTE: this may be spurious on Linux.", e);
}
}
}
public void 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;
try
{
response.OutputStream.Write(buffer, 0, buffer.Length);
}
catch (Exception ex)
{
m_log.Warn("[HTTPD]: Error - " + ex.Message);
}
finally
{
//response.OutputStream.Close();
try
{
response.Send();
}
catch (SocketException e)
{
// This has to be here to prevent a Linux/Mono crash
m_log.WarnFormat("[BASE HTTP SERVER] XmlRpcRequest issue {0}.\nNOTE: this may be spurious on Linux.", e);
}
}
}
public void Start()
{
m_log.Info("[HTTPD]: Starting up HTTP Server");
//m_workerThread = new Thread(new ThreadStart(StartHTTP));
//m_workerThread.Name = "HttpThread";
//m_workerThread.IsBackground = true;
//m_workerThread.Start();
//ThreadTracker.Add(m_workerThread);
StartHTTP();
}
private void StartHTTP()
{
try
{
m_log.Info("[HTTPD]: Spawned main thread OK");
//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 = new HttpServer.HttpListener(IPAddress.Any, (int)m_port);
m_httpListener2.ExceptionThrown += httpServerException;
m_httpListener2.LogWriter = httpserverlog;
m_httpListener2.DisconnectHandler = httpServerDisconnectMonitor;
}
else
{
//m_httpListener.Prefixes.Add("https://+:" + (m_sslport) + "/");
//m_httpListener.Prefixes.Add("http://+:" + m_port + "/");
}
m_httpListener2.RequestHandler += OnHandleRequestIOThread;
//m_httpListener.Start();
m_httpListener2.Start(64);
HTTPDRunning = true;
//HttpListenerContext context;
//while (true)
//{
// context = m_httpListener.GetContext();
// ThreadPool.QueueUserWorkItem(new WaitCallback(HandleRequest), context);
// }
}
catch (Exception e)
{
m_log.Warn("[HTTPD]: Error - " + e.Message);
m_log.Warn("Tip: Do you have permission to listen on port " + m_port + "," + m_sslport + "?");
}
}
public void httpServerDisconnectMonitor(HttpServer.IHttpClientContext source, SocketError err)
{
switch (err)
{
case SocketError.NotSocket:
NotSocketErrors++;
break;
}
}
public void httpServerException(object source, Exception exception)
{
m_log.ErrorFormat("[HTTPSERVER]: {0} had an exception {1}", source.ToString(), exception.ToString());
/*
if (HTTPDRunning)// && NotSocketErrors > 5)
{
Stop();
Thread.Sleep(200);
StartHTTP();
m_log.Warn("[HTTPSERVER]: Died. Trying to kick.....");
}
*/
}
public void Stop()
{
HTTPDRunning = false;
m_httpListener2.ExceptionThrown -= httpServerException;
m_httpListener2.DisconnectHandler = null;
m_httpListener2.LogWriter = null;
m_httpListener2.RequestHandler -= OnHandleRequestIOThread;
m_httpListener2.Stop();
}
public void RemoveStreamHandler(string httpMethod, string path)
{
string handlerKey = GetHandlerKey(httpMethod, path);
//m_log.DebugFormat("[BASE HTTP SERVER]: Removing handler key {0}", handlerKey);
m_streamHandlers.Remove(handlerKey);
}
public void RemoveHTTPHandler(string httpMethod, string path)
{
if (httpMethod != null && httpMethod.Length == 0)
{
m_HTTPHandlers.Remove(path);
return;
}
m_HTTPHandlers.Remove(GetHandlerKey(httpMethod, path));
}
// Remove the agent IF it is registered. Intercept the possible
// exception.
public bool RemoveAgentHandler(string agent, IHttpAgentHandler handler)
{
try
{
if (handler == m_agentHandlers[agent])
{
m_agentHandlers.Remove(agent);
return true;
}
}
catch(KeyNotFoundException)
{
}
return false;
}
public bool RemoveLLSDHandler(string path, LLSDMethod handler)
{
try
{
if (handler == m_llsdHandlers[path])
{
m_llsdHandlers.Remove(path);
return true;
}
}
catch (KeyNotFoundException)
{
// This is an exception to prevent crashing because of invalid code
}
return false;
}
public string GetHTTP404(string host)
{
string file = Path.Combine(Util.configDir(), "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(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 static string getDefaultHTTP404(string host)
{
return "<HTML><HEAD><TITLE>404 Page not found</TITLE><BODY><BR /><H1>Ooops!</H1><P>The page you requested has been obsconded with by knomes. Find hippos quick!</P><P>If you are trying to log-in, your link parameters should have: &quot;-loginpage http://" + host + "/?method=login -loginuri http://" + host + "/&quot; in your link </P></BODY></HTML>";
}
private static string getDefaultHTTP500()
{
return "<HTML><HEAD><TITLE>500 Internal Server Error</TITLE><BODY><BR /><H1>Ooops!</H1><P>The server you requested is overun by knomes! Find hippos quick!</P></BODY></HTML>";
}
}
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;
}
}
public class HttpServerLogWriter : HttpServer.ILogWriter
{
//private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public HttpServerLogWriter()
{
}
public void Write(object source, HttpServer.LogPrio priority, string message)
{
return;
/*
switch (priority)
{
case HttpServer.LogPrio.Debug:
m_log.DebugFormat("[{0}]: {1}", source.ToString(), message);
break;
case HttpServer.LogPrio.Error:
m_log.ErrorFormat("[{0}]: {1}", source.ToString(), message);
break;
case HttpServer.LogPrio.Info:
m_log.InfoFormat("[{0}]: {1}", source.ToString(), message);
break;
case HttpServer.LogPrio.Warning:
m_log.WarnFormat("[{0}]: {1}", source.ToString(), message);
break;
case HttpServer.LogPrio.Fatal:
m_log.ErrorFormat("[{0}]: FATAL! - {1}", source.ToString(), message);
break;
default:
break;
}
*/
}
}
}