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/*
* 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.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Xml;
using log4net;
using Nwc.XmlRpc;
namespace OpenSim.Framework.Servers.HttpServer
{
public delegate XmlRpcResponse OSHttpHttpProcessor(XmlRpcRequest request);
public class OSHttpHttpHandler: OSHttpHandler
{
private static readonly ILog _log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
// contains handler for processing HTTP Request
private GenericHTTPMethod _handler;
/// <summary>
/// Instantiate an HTTP handler.
/// </summary>
/// <param name="handler">a GenericHTTPMethod</param>
/// <param name="method">null or HTTP method regex</param>
/// <param name="path">null or path regex</param>
/// <param name="query">null or dictionary with query regexs</param>
/// <param name="headers">null or dictionary with header
/// regexs</param>
/// <param name="whitelist">null or IP address whitelist</param>
public OSHttpHttpHandler(GenericHTTPMethod handler, Regex method, Regex path,
Dictionary<string, Regex> query,
Dictionary<string, Regex> headers, Regex whitelist)
: base(method, path, query, headers, new Regex(@"^text/html", RegexOptions.IgnoreCase | RegexOptions.Compiled),
whitelist)
{
_handler = handler;
}
/// <summary>
/// Instantiate an HTTP handler.
/// </summary>
/// <param name="handler">a GenericHTTPMethod</param>
public OSHttpHttpHandler(GenericHTTPMethod handler)
: this(handler, new Regex(@"^GET$", RegexOptions.IgnoreCase | RegexOptions.Compiled), null, null, null, null)
{
}
/// <summary>
/// Invoked by OSHttpRequestPump.
/// </summary>
public override OSHttpHandlerResult Process(OSHttpRequest request)
{
// call handler method
Hashtable responseData = _handler(request.Query);
int responseCode = (int)responseData["int_response_code"];
string responseString = (string)responseData["str_response_string"];
string contentType = (string)responseData["content_type"];
//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";
}
OSHttpResponse response = new OSHttpResponse(request);
// We're forgoing the usual error status codes here because the client
// ignores anything but 200 and 301
response.StatusCode = (int)OSHttpStatusCode.SuccessOk;
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"))
{
buffer = Encoding.UTF8.GetBytes(responseString);
}
else
{
buffer = Convert.FromBase64String(responseString);
}
response.SendChunked = false;
response.ContentLength64 = buffer.Length;
response.ContentEncoding = Encoding.UTF8;
try
{
response.Body.Write(buffer, 0, buffer.Length);
}
catch (Exception ex)
{
_log.ErrorFormat("[OSHttpHttpHandler]: Error: {0}", ex.Message);
}
finally
{
response.Send();
}
return OSHttpHandlerResult.Done;
}
}
}
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