435 lines
17 KiB
C#
435 lines
17 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;
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using System.IO;
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using System.Reflection;
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using System.Net;
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using System.Text;
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using OpenSim.Server.Base;
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using OpenSim.Server.Handlers.Base;
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using OpenSim.Services.Interfaces;
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using GridRegion = OpenSim.Services.Interfaces.GridRegion;
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using OpenSim.Framework;
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using OpenSim.Framework.Servers.HttpServer;
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using OpenMetaverse;
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using OpenMetaverse.StructuredData;
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using Nini.Config;
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using log4net;
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namespace OpenSim.Server.Handlers.Simulation
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{
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public class AgentHandler
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private ISimulationService m_SimulationService;
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protected bool m_Proxy = false;
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public AgentHandler() { }
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public AgentHandler(ISimulationService sim)
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{
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m_SimulationService = sim;
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}
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public Hashtable Handler(Hashtable request)
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{
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// m_log.Debug("[CONNECTION DEBUGGING]: AgentHandler Called");
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//
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// m_log.Debug("---------------------------");
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// m_log.Debug(" >> uri=" + request["uri"]);
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// m_log.Debug(" >> content-type=" + request["content-type"]);
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// m_log.Debug(" >> http-method=" + request["http-method"]);
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// m_log.Debug("---------------------------\n");
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Hashtable responsedata = new Hashtable();
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responsedata["content_type"] = "text/html";
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responsedata["keepalive"] = false;
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UUID agentID;
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UUID regionID;
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string action;
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if (!Utils.GetParams((string)request["uri"], out agentID, out regionID, out action))
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{
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m_log.InfoFormat("[AGENT HANDLER]: Invalid parameters for agent message {0}", request["uri"]);
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responsedata["int_response_code"] = 404;
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responsedata["str_response_string"] = "false";
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return responsedata;
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}
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// Next, let's parse the verb
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string method = (string)request["http-method"];
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if (method.Equals("PUT"))
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{
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DoAgentPut(request, responsedata);
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return responsedata;
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}
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else if (method.Equals("POST"))
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{
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DoAgentPost(request, responsedata, agentID);
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return responsedata;
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}
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else if (method.Equals("GET"))
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{
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DoAgentGet(request, responsedata, agentID, regionID);
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return responsedata;
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}
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else if (method.Equals("DELETE"))
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{
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DoAgentDelete(request, responsedata, agentID, action, regionID);
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return responsedata;
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}
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else if (method.Equals("QUERYACCESS"))
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{
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DoQueryAccess(request, responsedata, agentID, regionID);
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return responsedata;
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}
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else
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{
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m_log.InfoFormat("[AGENT HANDLER]: method {0} not supported in agent message", method);
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responsedata["int_response_code"] = HttpStatusCode.MethodNotAllowed;
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responsedata["str_response_string"] = "Method not allowed";
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return responsedata;
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}
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}
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protected void DoAgentPost(Hashtable request, Hashtable responsedata, UUID id)
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{
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OSDMap args = Utils.GetOSDMap((string)request["body"]);
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if (args == null)
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{
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responsedata["int_response_code"] = HttpStatusCode.BadRequest;
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responsedata["str_response_string"] = "Bad request";
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return;
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}
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// retrieve the input arguments
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int x = 0, y = 0;
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UUID uuid = UUID.Zero;
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string regionname = string.Empty;
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uint teleportFlags = 0;
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if (args.ContainsKey("destination_x") && args["destination_x"] != null)
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Int32.TryParse(args["destination_x"].AsString(), out x);
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else
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m_log.WarnFormat(" -- request didn't have destination_x");
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if (args.ContainsKey("destination_y") && args["destination_y"] != null)
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Int32.TryParse(args["destination_y"].AsString(), out y);
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else
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m_log.WarnFormat(" -- request didn't have destination_y");
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if (args.ContainsKey("destination_uuid") && args["destination_uuid"] != null)
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UUID.TryParse(args["destination_uuid"].AsString(), out uuid);
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if (args.ContainsKey("destination_name") && args["destination_name"] != null)
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regionname = args["destination_name"].ToString();
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if (args.ContainsKey("teleport_flags") && args["teleport_flags"] != null)
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teleportFlags = args["teleport_flags"].AsUInteger();
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GridRegion destination = new GridRegion();
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destination.RegionID = uuid;
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destination.RegionLocX = x;
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destination.RegionLocY = y;
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destination.RegionName = regionname;
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AgentCircuitData aCircuit = new AgentCircuitData();
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try
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{
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aCircuit.UnpackAgentCircuitData(args);
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}
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catch (Exception ex)
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{
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m_log.InfoFormat("[AGENT HANDLER]: exception on unpacking ChildCreate message {0}", ex.Message);
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responsedata["int_response_code"] = HttpStatusCode.BadRequest;
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responsedata["str_response_string"] = "Bad request";
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return;
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}
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OSDMap resp = new OSDMap(2);
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string reason = String.Empty;
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// This is the meaning of POST agent
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//m_regionClient.AdjustUserInformation(aCircuit);
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//bool result = m_SimulationService.CreateAgent(destination, aCircuit, teleportFlags, out reason);
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bool result = CreateAgent(destination, aCircuit, teleportFlags, out reason);
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resp["reason"] = OSD.FromString(reason);
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resp["success"] = OSD.FromBoolean(result);
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// Let's also send out the IP address of the caller back to the caller (HG 1.5)
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resp["your_ip"] = OSD.FromString(GetCallerIP(request));
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// TODO: add reason if not String.Empty?
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responsedata["int_response_code"] = HttpStatusCode.OK;
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responsedata["str_response_string"] = OSDParser.SerializeJsonString(resp);
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}
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private string GetCallerIP(Hashtable request)
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{
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if (!m_Proxy)
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return Util.GetCallerIP(request);
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// We're behind a proxy
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Hashtable headers = (Hashtable)request["headers"];
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//// DEBUG
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//foreach (object o in headers.Keys)
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// m_log.DebugFormat("XXX {0} = {1}", o.ToString(), (headers[o] == null? "null" : headers[o].ToString()));
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string xff = "X-Forwarded-For";
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if (headers.ContainsKey(xff.ToLower()))
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xff = xff.ToLower();
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if (!headers.ContainsKey(xff) || headers[xff] == null)
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{
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m_log.WarnFormat("[AGENT HANDLER]: No XFF header");
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return Util.GetCallerIP(request);
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}
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m_log.DebugFormat("[AGENT HANDLER]: XFF is {0}", headers[xff]);
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IPEndPoint ep = Util.GetClientIPFromXFF((string)headers[xff]);
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if (ep != null)
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return ep.Address.ToString();
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// Oops
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return Util.GetCallerIP(request);
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}
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// subclasses can override this
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protected virtual bool CreateAgent(GridRegion destination, AgentCircuitData aCircuit, uint teleportFlags, out string reason)
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{
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return m_SimulationService.CreateAgent(destination, aCircuit, teleportFlags, out reason);
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}
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protected void DoAgentPut(Hashtable request, Hashtable responsedata)
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{
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OSDMap args = Utils.GetOSDMap((string)request["body"]);
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if (args == null)
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{
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responsedata["int_response_code"] = HttpStatusCode.BadRequest;
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responsedata["str_response_string"] = "Bad request";
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return;
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}
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// retrieve the input arguments
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int x = 0, y = 0;
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UUID uuid = UUID.Zero;
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string regionname = string.Empty;
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if (args.ContainsKey("destination_x") && args["destination_x"] != null)
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Int32.TryParse(args["destination_x"].AsString(), out x);
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if (args.ContainsKey("destination_y") && args["destination_y"] != null)
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Int32.TryParse(args["destination_y"].AsString(), out y);
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if (args.ContainsKey("destination_uuid") && args["destination_uuid"] != null)
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UUID.TryParse(args["destination_uuid"].AsString(), out uuid);
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if (args.ContainsKey("destination_name") && args["destination_name"] != null)
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regionname = args["destination_name"].ToString();
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GridRegion destination = new GridRegion();
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destination.RegionID = uuid;
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destination.RegionLocX = x;
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destination.RegionLocY = y;
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destination.RegionName = regionname;
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string messageType;
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if (args["message_type"] != null)
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messageType = args["message_type"].AsString();
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else
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{
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m_log.Warn("[AGENT HANDLER]: Agent Put Message Type not found. ");
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messageType = "AgentData";
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}
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bool result = true;
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if ("AgentData".Equals(messageType))
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{
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AgentData agent = new AgentData();
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try
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{
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agent.Unpack(args);
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}
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catch (Exception ex)
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{
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m_log.InfoFormat("[AGENT HANDLER]: exception on unpacking ChildAgentUpdate message {0}", ex.Message);
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responsedata["int_response_code"] = HttpStatusCode.BadRequest;
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responsedata["str_response_string"] = "Bad request";
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return;
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}
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//agent.Dump();
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// This is one of the meanings of PUT agent
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result = UpdateAgent(destination, agent);
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}
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else if ("AgentPosition".Equals(messageType))
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{
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AgentPosition agent = new AgentPosition();
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try
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{
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agent.Unpack(args);
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}
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catch (Exception ex)
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{
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m_log.InfoFormat("[AGENT HANDLER]: exception on unpacking ChildAgentUpdate message {0}", ex.Message);
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return;
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}
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//agent.Dump();
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// This is one of the meanings of PUT agent
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result = m_SimulationService.UpdateAgent(destination, agent);
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}
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responsedata["int_response_code"] = HttpStatusCode.OK;
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responsedata["str_response_string"] = result.ToString();
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//responsedata["str_response_string"] = OSDParser.SerializeJsonString(resp); ??? instead
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}
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// subclasses can override this
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protected virtual bool UpdateAgent(GridRegion destination, AgentData agent)
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{
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return m_SimulationService.UpdateAgent(destination, agent);
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}
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protected virtual void DoQueryAccess(Hashtable request, Hashtable responsedata, UUID id, UUID regionID)
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{
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if (m_SimulationService == null)
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{
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m_log.Debug("[AGENT HANDLER]: Agent QUERY called. Harmless but useless.");
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responsedata["content_type"] = "application/json";
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responsedata["int_response_code"] = HttpStatusCode.NotImplemented;
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responsedata["str_response_string"] = string.Empty;
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return;
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}
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// m_log.DebugFormat("[AGENT HANDLER]: Received QUERYACCESS with {0}", (string)request["body"]);
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OSDMap args = Utils.GetOSDMap((string)request["body"]);
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Vector3 position = Vector3.Zero;
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if (args.ContainsKey("position"))
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position = Vector3.Parse(args["position"].AsString());
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GridRegion destination = new GridRegion();
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destination.RegionID = regionID;
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string reason;
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bool result = m_SimulationService.QueryAccess(destination, id, position, out reason);
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responsedata["int_response_code"] = HttpStatusCode.OK;
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OSDMap resp = new OSDMap(2);
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resp["success"] = OSD.FromBoolean(result);
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resp["reason"] = OSD.FromString(reason);
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responsedata["str_response_string"] = OSDParser.SerializeJsonString(resp);
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}
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protected virtual void DoAgentGet(Hashtable request, Hashtable responsedata, UUID id, UUID regionID)
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{
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if (m_SimulationService == null)
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{
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m_log.Debug("[AGENT HANDLER]: Agent GET called. Harmless but useless.");
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responsedata["content_type"] = "application/json";
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responsedata["int_response_code"] = HttpStatusCode.NotImplemented;
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responsedata["str_response_string"] = string.Empty;
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return;
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}
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GridRegion destination = new GridRegion();
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destination.RegionID = regionID;
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IAgentData agent = null;
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bool result = m_SimulationService.RetrieveAgent(destination, id, out agent);
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OSDMap map = null;
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if (result)
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{
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if (agent != null) // just to make sure
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{
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map = agent.Pack();
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string strBuffer = "";
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try
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{
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strBuffer = OSDParser.SerializeJsonString(map);
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}
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catch (Exception e)
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{
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m_log.WarnFormat("[AGENT HANDLER]: Exception thrown on serialization of DoAgentGet: {0}", e.Message);
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responsedata["int_response_code"] = HttpStatusCode.InternalServerError;
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// ignore. buffer will be empty, caller should check.
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}
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responsedata["content_type"] = "application/json";
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responsedata["int_response_code"] = HttpStatusCode.OK;
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responsedata["str_response_string"] = strBuffer;
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}
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else
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{
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responsedata["int_response_code"] = HttpStatusCode.InternalServerError;
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responsedata["str_response_string"] = "Internal error";
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}
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}
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else
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{
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responsedata["int_response_code"] = HttpStatusCode.NotFound;
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responsedata["str_response_string"] = "Not Found";
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}
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}
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protected void DoAgentDelete(Hashtable request, Hashtable responsedata, UUID id, string action, UUID regionID)
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{
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m_log.Debug(" >>> DoDelete action:" + action + "; RegionID:" + regionID);
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GridRegion destination = new GridRegion();
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destination.RegionID = regionID;
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if (action.Equals("release"))
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ReleaseAgent(regionID, id);
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else
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m_SimulationService.CloseAgent(destination, id);
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responsedata["int_response_code"] = HttpStatusCode.OK;
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responsedata["str_response_string"] = "OpenSim agent " + id.ToString();
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m_log.Debug("[AGENT HANDLER]: Agent Released/Deleted.");
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}
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protected virtual void ReleaseAgent(UUID regionID, UUID id)
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{
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m_SimulationService.ReleaseAgent(regionID, id, "");
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}
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}
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}
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