387e9f7a7f
* Shrinks the largest in-memory object, the LLRAW.HeightmapLookupValue struct (only used for exporting to LLRAW terrain files), to the minimum possible size. This seems to have the odd side effect of cutting the size of the two double[256,256] terrain objects in half. Possibly an alignment optimization?
441 lines
14 KiB
C#
441 lines
14 KiB
C#
/*
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* Copyright (c) Contributors, http://opensimulator.org/
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* See CONTRIBUTORS.TXT for a full list of copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the OpenSimulator Project nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Net;
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using System.Text;
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using System.Threading;
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using Nini.Config;
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using OpenMetaverse;
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using OpenSim.Framework;
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using OpenSim.Framework.Servers;
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using OpenSim.Framework.Servers.HttpServer;
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using OpenSim.Region.Framework.Interfaces;
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using OpenSim.Region.Framework.Scenes;
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/*****************************************************
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*
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* ScriptsHttpRequests
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*
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* Implements the llHttpRequest and http_response
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* callback.
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*
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* Some stuff was already in LSLLongCmdHandler, and then
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* there was this file with a stub class in it. So,
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* I am moving some of the objects and functions out of
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* LSLLongCmdHandler, such as the HttpRequestClass, the
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* start and stop methods, and setting up pending and
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* completed queues. These are processed in the
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* LSLLongCmdHandler polling loop. Similiar to the
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* XMLRPCModule, since that seems to work.
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*
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* //TODO
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*
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* This probably needs some throttling mechanism but
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* it's wide open right now. This applies to both
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* number of requests and data volume.
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*
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* Linden puts all kinds of header fields in the requests.
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* Not doing any of that:
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* User-Agent
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* X-SecondLife-Shard
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* X-SecondLife-Object-Name
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* X-SecondLife-Object-Key
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* X-SecondLife-Region
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* X-SecondLife-Local-Position
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* X-SecondLife-Local-Velocity
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* X-SecondLife-Local-Rotation
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* X-SecondLife-Owner-Name
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* X-SecondLife-Owner-Key
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*
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* HTTPS support
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*
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* Configurable timeout?
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* Configurable max response size?
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* Configurable
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*
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* **************************************************/
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namespace OpenSim.Region.CoreModules.Scripting.HttpRequest
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{
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public class HttpRequestModule : IRegionModule, IHttpRequestModule
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{
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private object HttpListLock = new object();
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private int httpTimeout = 30000;
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private string m_name = "HttpScriptRequests";
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private string m_proxyurl = "";
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private string m_proxyexcepts = "";
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// <request id, HttpRequestClass>
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private Dictionary<UUID, HttpRequestClass> m_pendingRequests;
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private Scene m_scene;
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// private Queue<HttpRequestClass> rpcQueue = new Queue<HttpRequestClass>();
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public HttpRequestModule()
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{
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}
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#region IHttpRequestModule Members
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public UUID MakeHttpRequest(string url, string parameters, string body)
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{
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return UUID.Zero;
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}
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public UUID StartHttpRequest(uint localID, UUID itemID, string url, List<string> parameters, Dictionary<string, string> headers, string body)
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{
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UUID reqID = UUID.Random();
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HttpRequestClass htc = new HttpRequestClass();
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// Partial implementation: support for parameter flags needed
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// see http://wiki.secondlife.com/wiki/LlHTTPRequest
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//
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// Parameters are expected in {key, value, ... , key, value}
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if (parameters != null)
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{
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string[] parms = parameters.ToArray();
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for (int i = 0; i < parms.Length; i += 2)
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{
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switch (Int32.Parse(parms[i]))
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{
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case (int)HttpRequestConstants.HTTP_METHOD:
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htc.HttpMethod = parms[i + 1];
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break;
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case (int)HttpRequestConstants.HTTP_MIMETYPE:
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htc.HttpMIMEType = parms[i + 1];
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break;
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case (int)HttpRequestConstants.HTTP_BODY_MAXLENGTH:
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// TODO implement me
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break;
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case (int)HttpRequestConstants.HTTP_VERIFY_CERT:
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// TODO implement me
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break;
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}
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}
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}
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htc.LocalID = localID;
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htc.ItemID = itemID;
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htc.Url = url;
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htc.ReqID = reqID;
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htc.HttpTimeout = httpTimeout;
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htc.OutboundBody = body;
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htc.ResponseHeaders = headers;
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htc.proxyurl = m_proxyurl;
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htc.proxyexcepts = m_proxyexcepts;
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lock (HttpListLock)
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{
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m_pendingRequests.Add(reqID, htc);
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}
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htc.Process();
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return reqID;
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}
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public void StopHttpRequest(uint m_localID, UUID m_itemID)
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{
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if (m_pendingRequests != null)
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{
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lock (HttpListLock)
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{
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HttpRequestClass tmpReq;
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if (m_pendingRequests.TryGetValue(m_itemID, out tmpReq))
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{
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tmpReq.Stop();
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m_pendingRequests.Remove(m_itemID);
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}
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}
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}
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}
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/*
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* TODO
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* Not sure how important ordering is is here - the next first
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* one completed in the list is returned, based soley on its list
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* position, not the order in which the request was started or
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* finsihed. I thought about setting up a queue for this, but
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* it will need some refactoring and this works 'enough' right now
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*/
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public IServiceRequest GetNextCompletedRequest()
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{
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lock (HttpListLock)
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{
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foreach (UUID luid in m_pendingRequests.Keys)
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{
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HttpRequestClass tmpReq;
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if (m_pendingRequests.TryGetValue(luid, out tmpReq))
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{
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if (tmpReq.Finished)
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{
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return tmpReq;
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}
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}
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}
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}
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return null;
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}
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public void RemoveCompletedRequest(UUID id)
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{
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lock (HttpListLock)
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{
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HttpRequestClass tmpReq;
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if (m_pendingRequests.TryGetValue(id, out tmpReq))
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{
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tmpReq.Stop();
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tmpReq = null;
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m_pendingRequests.Remove(id);
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}
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}
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}
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#endregion
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#region IRegionModule Members
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public void Initialise(Scene scene, IConfigSource config)
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{
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m_scene = scene;
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m_scene.RegisterModuleInterface<IHttpRequestModule>(this);
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m_proxyurl = config.Configs["Startup"].GetString("HttpProxy");
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m_proxyexcepts = config.Configs["Startup"].GetString("HttpProxyExceptions");
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m_pendingRequests = new Dictionary<UUID, HttpRequestClass>();
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}
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public void PostInitialise()
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{
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}
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public void Close()
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{
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}
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public string Name
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{
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get { return m_name; }
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}
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public bool IsSharedModule
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{
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get { return true; }
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}
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#endregion
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}
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public class HttpRequestClass: IServiceRequest
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{
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// Constants for parameters
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// public const int HTTP_BODY_MAXLENGTH = 2;
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// public const int HTTP_METHOD = 0;
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// public const int HTTP_MIMETYPE = 1;
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// public const int HTTP_VERIFY_CERT = 3;
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private bool _finished;
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public bool Finished
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{
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get { return _finished; }
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}
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// public int HttpBodyMaxLen = 2048; // not implemented
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// Parameter members and default values
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public string HttpMethod = "GET";
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public string HttpMIMEType = "text/plain;charset=utf-8";
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public int HttpTimeout;
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// public bool HttpVerifyCert = true; // not implemented
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private Thread httpThread;
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// Request info
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private UUID _itemID;
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public UUID ItemID
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{
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get { return _itemID; }
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set { _itemID = value; }
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}
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private uint _localID;
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public uint LocalID
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{
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get { return _localID; }
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set { _localID = value; }
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}
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public DateTime Next;
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public string proxyurl;
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public string proxyexcepts;
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public string OutboundBody;
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private UUID _reqID;
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public UUID ReqID
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{
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get { return _reqID; }
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set { _reqID = value; }
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}
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public HttpWebRequest Request;
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public string ResponseBody;
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public List<string> ResponseMetadata;
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public Dictionary<string, string> ResponseHeaders;
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public int Status;
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public string Url;
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public void Process()
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{
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httpThread = new Thread(SendRequest);
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httpThread.Name = "HttpRequestThread";
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httpThread.Priority = ThreadPriority.BelowNormal;
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httpThread.IsBackground = true;
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_finished = false;
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httpThread.Start();
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ThreadTracker.Add(httpThread);
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}
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/*
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* TODO: More work on the response codes. Right now
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* returning 200 for success or 499 for exception
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*/
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public void SendRequest()
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{
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HttpWebResponse response = null;
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StringBuilder sb = new StringBuilder();
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byte[] buf = new byte[8192];
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string tempString = null;
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int count = 0;
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try
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{
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Request = (HttpWebRequest) WebRequest.Create(Url);
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Request.Method = HttpMethod;
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Request.ContentType = HttpMIMEType;
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if (proxyurl != null && proxyurl.Length > 0)
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{
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if (proxyexcepts != null && proxyexcepts.Length > 0)
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{
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string[] elist = proxyexcepts.Split(';');
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Request.Proxy = new WebProxy(proxyurl, true, elist);
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}
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else
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{
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Request.Proxy = new WebProxy(proxyurl, true);
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}
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}
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foreach (KeyValuePair<string, string> entry in ResponseHeaders)
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if (entry.Key.ToLower().Equals("user-agent"))
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Request.UserAgent = entry.Value;
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else
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Request.Headers[entry.Key] = entry.Value;
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// Encode outbound data
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if (OutboundBody.Length > 0)
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{
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byte[] data = Util.UTF8.GetBytes(OutboundBody);
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Request.ContentLength = data.Length;
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Stream bstream = Request.GetRequestStream();
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bstream.Write(data, 0, data.Length);
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bstream.Close();
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}
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Request.Timeout = HttpTimeout;
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// execute the request
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response = (HttpWebResponse) Request.GetResponse();
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Stream resStream = response.GetResponseStream();
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do
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{
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// fill the buffer with data
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count = resStream.Read(buf, 0, buf.Length);
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// make sure we read some data
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if (count != 0)
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{
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// translate from bytes to ASCII text
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tempString = Util.UTF8.GetString(buf, 0, count);
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// continue building the string
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sb.Append(tempString);
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}
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} while (count > 0); // any more data to read?
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ResponseBody = sb.ToString();
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}
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catch (Exception e)
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{
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if (e is WebException && ((WebException)e).Status == WebExceptionStatus.ProtocolError)
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{
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HttpWebResponse webRsp = (HttpWebResponse)((WebException)e).Response;
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Status = (int)webRsp.StatusCode;
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ResponseBody = webRsp.StatusDescription;
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}
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else
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{
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Status = (int)OSHttpStatusCode.ClientErrorJoker;
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ResponseBody = e.Message;
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}
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_finished = true;
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return;
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}
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finally
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{
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if (response != null)
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response.Close();
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}
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Status = (int)OSHttpStatusCode.SuccessOk;
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_finished = true;
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}
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public void Stop()
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{
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try
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{
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httpThread.Abort();
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}
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catch (Exception)
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{
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}
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}
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}
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}
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