Backported GetTextureModule and IAssetService.GetCached()
John Hurliman
parent
18ed68cd31
commit
0f3314c04c
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@ -11228,12 +11228,15 @@ namespace OpenSim.Region.ClientStack.LindenUDP
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m_groupPowers.Clear();
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if (GroupMembership != null)
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{
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for (int i = 0; i < GroupMembership.Length; i++)
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{
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m_groupPowers[GroupMembership[i].GroupID] = GroupMembership[i].GroupPowers;
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}
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}
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}
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}
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public string Report()
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{
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@ -406,6 +406,11 @@ namespace Flotsam.RegionModules.AssetCache
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return asset;
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}
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public AssetBase GetCached(string id)
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{
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return Get(id);
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}
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public void Expire(string id)
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{
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if (m_LogLevel >= 2)
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@ -0,0 +1,220 @@
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/*
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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;
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using System.Collections.Specialized;
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using System.Reflection;
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using System.IO;
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using System.Web;
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using log4net;
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using Nini.Config;
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using OpenMetaverse;
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using OpenMetaverse.StructuredData;
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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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using OpenSim.Services.Interfaces;
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using Caps = OpenSim.Framework.Capabilities.Caps;
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namespace OpenSim.Region.CoreModules.Avatar.ObjectCaps
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{
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#region Stream Handler
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public delegate byte[] StreamHandlerCallback(string path, Stream request, OSHttpRequest httpRequest, OSHttpResponse httpResponse);
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public class StreamHandler : BaseStreamHandler
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{
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StreamHandlerCallback m_callback;
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public StreamHandler(string httpMethod, string path, StreamHandlerCallback callback)
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: base(httpMethod, path)
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{
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m_callback = callback;
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}
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public override byte[] Handle(string path, Stream request, OSHttpRequest httpRequest, OSHttpResponse httpResponse)
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{
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return m_callback(path, request, httpRequest, httpResponse);
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}
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}
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#endregion Stream Handler
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public class GetTextureModule : IRegionModule
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{
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private static readonly ILog m_log =
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LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private Scene m_scene;
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private IAssetService m_assetService;
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#region IRegionModule Members
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public void Initialise(Scene pScene, IConfigSource pSource)
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{
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m_scene = pScene;
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}
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public void PostInitialise()
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{
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m_assetService = m_scene.RequestModuleInterface<IAssetService>();
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m_scene.EventManager.OnRegisterCaps += RegisterCaps;
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}
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public void Close() { }
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public string Name { get { return "GetTextureModule"; } }
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public bool IsSharedModule { get { return false; } }
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public void RegisterCaps(UUID agentID, Caps caps)
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{
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UUID capID = UUID.Random();
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m_log.Info("[GETTEXTURE]: /CAPS/" + capID);
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caps.RegisterHandler("GetTexture", new StreamHandler("GET", "/CAPS/" + capID, ProcessGetTexture));
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}
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#endregion
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private byte[] ProcessGetTexture(string path, Stream request, OSHttpRequest httpRequest, OSHttpResponse httpResponse)
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{
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// TODO: Change this to a config option
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const string REDIRECT_URL = null;
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// Try to parse the texture ID from the request URL
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NameValueCollection query = HttpUtility.ParseQueryString(httpRequest.Url.Query);
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string textureStr = query.GetOne("texture_id");
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if (m_assetService == null)
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{
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m_log.Error("[GETTEXTURE]: Cannot fetch texture " + textureStr + " without an asset service");
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httpResponse.StatusCode = (int)System.Net.HttpStatusCode.NotFound;
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return null;
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}
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UUID textureID;
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if (!String.IsNullOrEmpty(textureStr) && UUID.TryParse(textureStr, out textureID))
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{
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AssetBase texture;
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if (!String.IsNullOrEmpty(REDIRECT_URL))
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{
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// Only try to fetch locally cached textures. Misses are redirected
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texture = m_assetService.GetCached(textureID.ToString());
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if (texture != null)
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{
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SendTexture(httpRequest, httpResponse, texture);
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}
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else
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{
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string textureUrl = REDIRECT_URL + textureID.ToString();
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m_log.Debug("[GETTEXTURE]: Redirecting texture request to " + textureUrl);
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httpResponse.RedirectLocation = textureUrl;
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}
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}
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else
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{
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// Fetch locally or remotely. Misses return a 404
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texture = m_assetService.Get(textureID.ToString());
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if (texture != null)
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{
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SendTexture(httpRequest, httpResponse, texture);
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}
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else
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{
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m_log.Warn("[GETTEXTURE]: Texture " + textureID + " not found");
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httpResponse.StatusCode = (int)System.Net.HttpStatusCode.NotFound;
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}
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}
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}
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else
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{
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m_log.Warn("[GETTEXTURE]: Failed to parse a texture_id from GetTexture request: " + httpRequest.Url);
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}
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httpResponse.Send();
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return null;
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}
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private void SendTexture(OSHttpRequest request, OSHttpResponse response, AssetBase texture)
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{
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string range = request.Headers.GetOne("Range");
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if (!String.IsNullOrEmpty(range))
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{
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// Range request
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int start, end;
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if (TryParseRange(range, out start, out end))
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{
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end = Utils.Clamp(end, 1, texture.Data.Length);
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start = Utils.Clamp(start, 0, end - 1);
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m_log.Debug("Serving " + start + " to " + end + " of " + texture.Data.Length + " bytes for texture " + texture.ID);
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if (end - start < texture.Data.Length)
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response.StatusCode = (int)System.Net.HttpStatusCode.PartialContent;
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response.ContentLength = end - start;
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response.ContentType = texture.Metadata.ContentType;
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response.Body.Write(texture.Data, start, end - start);
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}
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else
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{
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m_log.Warn("Malformed Range header: " + range);
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response.StatusCode = (int)System.Net.HttpStatusCode.BadRequest;
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}
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}
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else
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{
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// Full content request
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response.ContentLength = texture.Data.Length;
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response.ContentType = texture.Metadata.ContentType;
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response.Body.Write(texture.Data, 0, texture.Data.Length);
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}
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}
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private bool TryParseRange(string header, out int start, out int end)
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{
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if (header.StartsWith("bytes="))
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{
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string[] rangeValues = header.Substring(6).Split('-');
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if (rangeValues.Length == 2)
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{
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if (Int32.TryParse(rangeValues[0], out start) && Int32.TryParse(rangeValues[1], out end))
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return true;
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}
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}
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start = end = 0;
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return false;
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}
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}
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}
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@ -229,6 +229,14 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset
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return asset;
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}
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public AssetBase GetCached(string id)
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{
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if (m_Cache != null)
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return m_Cache.Get(id);
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return null;
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}
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public AssetMetadata GetMetadata(string id)
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{
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AssetBase asset = null;
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@ -165,6 +165,14 @@ namespace OpenSim.Region.CoreModules.ServiceConnectorsOut.Asset
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return asset;
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}
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public AssetBase GetCached(string id)
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{
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if (m_Cache != null)
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return m_Cache.Get(id);
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return null;
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}
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public AssetMetadata GetMetadata(string id)
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{
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AssetBase asset = null;
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@ -93,6 +93,11 @@ namespace OpenSim.Services.AssetService
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return m_Database.GetAsset(assetID);
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}
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public AssetBase GetCached(string id)
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{
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return Get(id);
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}
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public AssetMetadata GetMetadata(string id)
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{
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UUID assetID;
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@ -111,6 +111,14 @@ namespace OpenSim.Services.Connectors
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return asset;
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}
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public AssetBase GetCached(string id)
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{
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if (m_Cache != null)
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return m_Cache.Get(id);
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return null;
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}
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public AssetMetadata GetMetadata(string id)
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{
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if (m_Cache != null)
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@ -116,6 +116,20 @@ namespace OpenSim.Services.Connectors
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return null;
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}
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public AssetBase GetCached(string id)
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{
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string url = string.Empty;
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string assetID = string.Empty;
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if (StringToUrlAndAssetID(id, out url, out assetID))
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{
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IAssetService connector = GetConnector(url);
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return connector.GetCached(assetID);
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}
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return null;
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}
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public AssetMetadata GetMetadata(string id)
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{
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string url = string.Empty;
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@ -51,7 +51,15 @@ namespace OpenSim.Services.Interfaces
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byte[] GetData(string id);
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/// <summary>
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/// Get an asset asynchronously
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/// Synchronously fetches an asset from the local cache only
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/// </summary>
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/// <param name="id">Asset ID</param>
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/// <returns>The fetched asset, or null if it did not exist in the local cache</returns>
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AssetBase GetCached(string id);
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/// <summary>
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/// Get an asset synchronously or asynchronously (depending on whether
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/// it is locally cached) and fire a callback with the fetched asset
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/// </summary>
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/// <param name="id">The asset id</param>
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/// <param name="sender">Represents the requester. Passed back via the handler</param>
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@ -65,6 +65,11 @@ namespace OpenSim.Tests.Common.Mock
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return asset;
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}
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public AssetBase GetCached(string id)
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{
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return Get(id);
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}
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public AssetMetadata GetMetadata(string id)
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{
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throw new System.NotImplementedException();
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