/* * Copyright (c) Contributors, http://opensimulator.org/ * See CONTRIBUTORS.TXT for a full list of copyright holders. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * Neither the name of the OpenSimulator Project nor the * names of its contributors may be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ using System; using System.Collections.Generic; using System.IO; using System.Net; using System.Reflection; using System.Text; using System.Collections; using OpenSim.Framework; using OpenSim.Services.Interfaces; using GridRegion = OpenSim.Services.Interfaces.GridRegion; using OpenMetaverse; using OpenMetaverse.StructuredData; using log4net; using Nini.Config; namespace OpenSim.Services.Connectors.Simulation { public class SimulationServiceConnector : ISimulationService { private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType); // we use this dictionary to track the pending updateagent requests, maps URI --> position update private Dictionary m_updateAgentQueue = new Dictionary(); //private GridRegion m_Region; public SimulationServiceConnector() { } public SimulationServiceConnector(IConfigSource config) { //m_Region = region; } public IScene GetScene(UUID regionId) { return null; } public ISimulationService GetInnerService() { return null; } #region Agents protected virtual string AgentPath() { return "agent/"; } public bool CreateAgent(GridRegion destination, AgentCircuitData aCircuit, uint flags, out string reason) { // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: CreateAgent start"); reason = String.Empty; if (destination == null) { m_log.Debug("[REMOTE SIMULATION CONNECTOR]: Given destination is null"); return false; } string uri = destination.ServerURI + AgentPath() + aCircuit.AgentID + "/"; try { OSDMap args = aCircuit.PackAgentCircuitData(); args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString()); args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString()); args["destination_name"] = OSD.FromString(destination.RegionName); args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString()); args["teleport_flags"] = OSD.FromString(flags.ToString()); OSDMap result = WebUtil.PostToServiceCompressed(uri, args, 30000); bool success = result["success"].AsBoolean(); if (success && result.ContainsKey("_Result")) { OSDMap data = (OSDMap)result["_Result"]; reason = data["reason"].AsString(); success = data["success"].AsBoolean(); return success; } // Try the old version, uncompressed result = WebUtil.PostToService(uri, args, 30000); if (result["Success"].AsBoolean()) { if (result.ContainsKey("_Result")) { OSDMap data = (OSDMap)result["_Result"]; reason = data["reason"].AsString(); success = data["success"].AsBoolean(); m_log.WarnFormat( "[REMOTE SIMULATION CONNECTOR]: Remote simulator {0} did not accept compressed transfer, suggest updating it.", destination.RegionName); return success; } } m_log.WarnFormat( "[REMOTE SIMULATION CONNECTOR]: Failed to create agent {0} {1} at remote simulator {2}", aCircuit.firstname, aCircuit.lastname, destination.RegionName); reason = result["Message"] != null ? result["Message"].AsString() : "error"; return false; } catch (Exception e) { m_log.Warn("[REMOTE SIMULATION CONNECTOR]: CreateAgent failed with exception: " + e.ToString()); reason = e.Message; } return false; } /// /// Send complete data about an agent in this region to a neighbor /// public bool UpdateAgent(GridRegion destination, AgentData data) { return UpdateAgent(destination, (IAgentData)data, 200000); // yes, 200 seconds } private ExpiringCache _failedSims = new ExpiringCache(); /// /// Send updated position information about an agent in this region to a neighbor /// This operation may be called very frequently if an avatar is moving about in /// the region. /// public bool UpdateAgent(GridRegion destination, AgentPosition data) { bool v = true; if (_failedSims.TryGetValue(destination.ServerURI, out v)) return false; // The basic idea of this code is that the first thread that needs to // send an update for a specific avatar becomes the worker for any subsequent // requests until there are no more outstanding requests. Further, only send the most // recent update; this *should* never be needed but some requests get // slowed down and once that happens the problem with service end point // limits kicks in and nothing proceeds string uri = destination.ServerURI + AgentPath() + data.AgentID + "/"; lock (m_updateAgentQueue) { if (m_updateAgentQueue.ContainsKey(uri)) { // Another thread is already handling // updates for this simulator, just update // the position and return, overwrites are // not a problem since we only care about the // last update anyway m_updateAgentQueue[uri] = data; return true; } // Otherwise update the reference and start processing m_updateAgentQueue[uri] = data; } AgentPosition pos = null; bool success = true; while (success) { lock (m_updateAgentQueue) { // save the position AgentPosition lastpos = pos; pos = m_updateAgentQueue[uri]; // this is true if no one put a new // update in the map since the last // one we processed, if thats the // case then we are done if (pos == lastpos) { m_updateAgentQueue.Remove(uri); return true; } } success = UpdateAgent(destination, (IAgentData)pos, 10000); } // we get here iff success == false // blacklist sim for 2 minutes lock (m_updateAgentQueue) { _failedSims.AddOrUpdate(destination.ServerURI, true, 120); m_updateAgentQueue.Remove(uri); } return false; } /// /// This is the worker function to send AgentData to a neighbor region /// private bool UpdateAgent(GridRegion destination, IAgentData cAgentData, int timeout) { // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: UpdateAgent start"); // Eventually, we want to use a caps url instead of the agentID string uri = destination.ServerURI + AgentPath() + cAgentData.AgentID + "/"; try { OSDMap args = cAgentData.Pack(); args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString()); args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString()); args["destination_name"] = OSD.FromString(destination.RegionName); args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString()); OSDMap result = WebUtil.PutToServiceCompressed(uri, args, timeout); if (result["Success"].AsBoolean()) return true; result = WebUtil.PutToService(uri, args, timeout); return result["Success"].AsBoolean(); } catch (Exception e) { m_log.Warn("[REMOTE SIMULATION CONNECTOR]: UpdateAgent failed with exception: " + e.ToString()); } return false; } /// /// Not sure what sequence causes this function to be invoked. The only calling /// path is through the GET method /// public bool RetrieveAgent(GridRegion destination, UUID id, out IAgentData agent) { // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: RetrieveAgent start"); agent = null; // Eventually, we want to use a caps url instead of the agentID string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/"; try { OSDMap result = WebUtil.GetFromService(uri, 10000); if (result["Success"].AsBoolean()) { // OSDMap args = Util.GetOSDMap(result["_RawResult"].AsString()); OSDMap args = (OSDMap)result["_Result"]; if (args != null) { agent = new CompleteAgentData(); agent.Unpack(args, null); return true; } } } catch (Exception e) { m_log.Warn("[REMOTE SIMULATION CONNECTOR]: UpdateAgent failed with exception: " + e.ToString()); } return false; } /// /// public bool QueryAccess(GridRegion destination, UUID id, Vector3 position, out string version, out string reason) { reason = "Failed to contact destination"; version = "Unknown"; // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: QueryAccess start, position={0}", position); IPEndPoint ext = destination.ExternalEndPoint; if (ext == null) return false; // Eventually, we want to use a caps url instead of the agentID string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/"; OSDMap request = new OSDMap(); request.Add("position", OSD.FromString(position.ToString())); try { OSDMap result = WebUtil.ServiceOSDRequest(uri, request, "QUERYACCESS", 10000, false); bool success = result["success"].AsBoolean(); if (result.ContainsKey("_Result")) { OSDMap data = (OSDMap)result["_Result"]; // FIXME: If there is a _Result map then it's the success key here that indicates the true success // or failure, not the sibling result node. success = data["success"]; reason = data["reason"].AsString(); if (data["version"] != null && data["version"].AsString() != string.Empty) version = data["version"].AsString(); m_log.DebugFormat( "[REMOTE SIMULATION CONNECTOR]: QueryAccess to {0} returned {1}, reason {2}, version {3} ({4})", uri, success, reason, version, data["version"].AsString()); } if (!success) { // If we don't check this then OpenSimulator 0.7.3.1 and some period before will never see the // actual failure message if (!result.ContainsKey("_Result")) { if (result.ContainsKey("Message")) { string message = result["Message"].AsString(); if (message == "Service request failed: [MethodNotAllowed] MethodNotAllowed") // Old style region { m_log.Info("[REMOTE SIMULATION CONNECTOR]: The above web util error was caused by a TP to a sim that doesn't support QUERYACCESS and can be ignored"); return true; } reason = result["Message"]; } else { reason = "Communications failure"; } } return false; } OSDMap resp = (OSDMap)result["_Result"]; success = resp["success"].AsBoolean(); reason = resp["reason"].AsString(); return success; } catch (Exception e) { m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] QueryAcesss failed with exception; {0}",e.ToString()); } return false; } /// /// public bool ReleaseAgent(UUID origin, UUID id, string uri) { // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: ReleaseAgent start"); try { WebUtil.ServiceOSDRequest(uri, null, "DELETE", 10000, false); } catch (Exception e) { m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] ReleaseAgent failed with exception; {0}",e.ToString()); } return true; } private bool CloseAgent(GridRegion destination, UUID id, bool ChildOnly) { // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: CloseAgent start"); string uri = destination.ServerURI + AgentPath() + id + "/" + destination.RegionID.ToString() + "/"; try { WebUtil.ServiceOSDRequest(uri, null, "DELETE", 10000, false); } catch (Exception e) { m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] CloseAgent failed with exception; {0}",e.ToString()); } return true; } public bool CloseChildAgent(GridRegion destination, UUID id) { return CloseAgent(destination, id, true); } public bool CloseAgent(GridRegion destination, UUID id) { return CloseAgent(destination, id, false); } #endregion Agents #region Objects protected virtual string ObjectPath() { return "object/"; } /// /// /// public bool CreateObject(GridRegion destination, Vector3 newPosition, ISceneObject sog, bool isLocalCall) { // m_log.DebugFormat("[REMOTE SIMULATION CONNECTOR]: CreateObject start"); string uri = destination.ServerURI + ObjectPath() + sog.UUID + "/"; try { OSDMap args = new OSDMap(2); args["sog"] = OSD.FromString(sog.ToXml2()); args["extra"] = OSD.FromString(sog.ExtraToXmlString()); args["modified"] = OSD.FromBoolean(sog.HasGroupChanged); args["new_position"] = newPosition.ToString(); string state = sog.GetStateSnapshot(); if (state.Length > 0) args["state"] = OSD.FromString(state); // Add the input general arguments args["destination_x"] = OSD.FromString(destination.RegionLocX.ToString()); args["destination_y"] = OSD.FromString(destination.RegionLocY.ToString()); args["destination_name"] = OSD.FromString(destination.RegionName); args["destination_uuid"] = OSD.FromString(destination.RegionID.ToString()); OSDMap response = WebUtil.PostToService(uri, args, 40000); if (response["Success"] == "False") return false; } catch (Exception e) { m_log.WarnFormat("[REMOTE SIMULATION CONNECTOR] CreateObject failed with exception; {0}",e.ToString()); return false; } return true; } /// /// /// public bool CreateObject(GridRegion destination, UUID userID, UUID itemID) { // TODO, not that urgent return false; } #endregion Objects } }