opensim – Rev 1
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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the 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;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Net;
using System.Reflection;
using OpenSim.Framework;
using OpenSim.Services.Interfaces;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;
using OpenMetaverse;
using OpenMetaverse.Imaging;
using OpenMetaverse.StructuredData;
using Nwc.XmlRpc;
using log4net;
using OpenSim.Services.Connectors.Simulation;
namespace OpenSim.Services.Connectors.Hypergrid
{
public class GatekeeperServiceConnector : SimulationServiceConnector
{
private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private static UUID m_HGMapImage = new UUID("00000000-0000-1111-9999-000000000013");
private IAssetService m_AssetService;
public GatekeeperServiceConnector()
: base()
{
}
public GatekeeperServiceConnector(IAssetService assService)
{
m_AssetService = assService;
}
protected override string AgentPath()
{
return "foreignagent/";
}
protected override string ObjectPath()
{
return "foreignobject/";
}
public bool LinkRegion(GridRegion info, out UUID regionID, out ulong realHandle, out string externalName, out string imageURL, out string reason)
{
regionID = UUID.Zero;
imageURL = string.Empty;
realHandle = 0;
externalName = string.Empty;
reason = string.Empty;
Hashtable hash = new Hashtable();
hash["region_name"] = info.RegionName;
IList paramList = new ArrayList();
paramList.Add(hash);
XmlRpcRequest request = new XmlRpcRequest("link_region", paramList);
m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: Linking to " + info.ServerURI);
XmlRpcResponse response = null;
try
{
response = request.Send(info.ServerURI, 10000);
}
catch (Exception e)
{
m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: Exception " + e.Message);
reason = "Error contacting remote server";
return false;
}
if (response.IsFault)
{
reason = response.FaultString;
m_log.ErrorFormat("[GATEKEEPER SERVICE CONNECTOR]: remote call returned an error: {0}", response.FaultString);
return false;
}
hash = (Hashtable)response.Value;
//foreach (Object o in hash)
// m_log.Debug(">> " + ((DictionaryEntry)o).Key + ":" + ((DictionaryEntry)o).Value);
try
{
bool success = false;
Boolean.TryParse((string)hash["result"], out success);
if (success)
{
UUID.TryParse((string)hash["uuid"], out regionID);
//m_log.Debug(">> HERE, uuid: " + regionID);
if ((string)hash["handle"] != null)
{
realHandle = Convert.ToUInt64((string)hash["handle"]);
//m_log.Debug(">> HERE, realHandle: " + realHandle);
}
if (hash["region_image"] != null)
{
imageURL = (string)hash["region_image"];
//m_log.Debug(">> HERE, imageURL: " + imageURL);
}
if (hash["external_name"] != null)
{
externalName = (string)hash["external_name"];
//m_log.Debug(">> HERE, externalName: " + externalName);
}
}
}
catch (Exception e)
{
reason = "Error parsing return arguments";
m_log.Error("[GATEKEEPER SERVICE CONNECTOR]: Got exception while parsing hyperlink response " + e.StackTrace);
return false;
}
return true;
}
public UUID GetMapImage(UUID regionID, string imageURL, string storagePath)
{
if (m_AssetService == null)
{
m_log.DebugFormat("[GATEKEEPER SERVICE CONNECTOR]: No AssetService defined. Map tile not retrieved.");
return m_HGMapImage;
}
UUID mapTile = m_HGMapImage;
string filename = string.Empty;
try
{
WebClient c = new WebClient();
string name = regionID.ToString();
filename = Path.Combine(storagePath, name + ".jpg");
m_log.DebugFormat("[GATEKEEPER SERVICE CONNECTOR]: Map image at {0}, cached at {1}", imageURL, filename);
if (!File.Exists(filename))
{
m_log.DebugFormat("[GATEKEEPER SERVICE CONNECTOR]: downloading...");
c.DownloadFile(imageURL, filename);
}
else
{
m_log.DebugFormat("[GATEKEEPER SERVICE CONNECTOR]: using cached image");
}
byte[] imageData = null;
using (Bitmap bitmap = new Bitmap(filename))
{
//m_log.Debug("Size: " + m.PhysicalDimension.Height + "-" + m.PhysicalDimension.Width);
imageData = OpenJPEG.EncodeFromImage(bitmap, true);
}
AssetBase ass = new AssetBase(UUID.Random(), "region " + name, (sbyte)AssetType.Texture, regionID.ToString());
// !!! for now
//info.RegionSettings.TerrainImageID = ass.FullID;
ass.Data = imageData;
mapTile = ass.FullID;
// finally
m_AssetService.Store(ass);
}
catch // LEGIT: Catching problems caused by OpenJPEG p/invoke
{
m_log.Info("[GATEKEEPER SERVICE CONNECTOR]: Failed getting/storing map image, because it is probably already in the cache");
}
return mapTile;
}
public GridRegion GetHyperlinkRegion(GridRegion gatekeeper, UUID regionID)
{
Hashtable hash = new Hashtable();
hash["region_uuid"] = regionID.ToString();
IList paramList = new ArrayList();
paramList.Add(hash);
XmlRpcRequest request = new XmlRpcRequest("get_region", paramList);
m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: contacting " + gatekeeper.ServerURI);
XmlRpcResponse response = null;
try
{
response = request.Send(gatekeeper.ServerURI, 10000);
}
catch (Exception e)
{
m_log.Debug("[GATEKEEPER SERVICE CONNECTOR]: Exception " + e.Message);
return null;
}
if (response.IsFault)
{
m_log.ErrorFormat("[GATEKEEPER SERVICE CONNECTOR]: remote call returned an error: {0}", response.FaultString);
return null;
}
hash = (Hashtable)response.Value;
//foreach (Object o in hash)
// m_log.Debug(">> " + ((DictionaryEntry)o).Key + ":" + ((DictionaryEntry)o).Value);
try
{
bool success = false;
Boolean.TryParse((string)hash["result"], out success);
if (success)
{
GridRegion region = new GridRegion();
UUID.TryParse((string)hash["uuid"], out region.RegionID);
//m_log.Debug(">> HERE, uuid: " + region.RegionID);
int n = 0;
if (hash["x"] != null)
{
Int32.TryParse((string)hash["x"], out n);
region.RegionLocX = n;
//m_log.Debug(">> HERE, x: " + region.RegionLocX);
}
if (hash["y"] != null)
{
Int32.TryParse((string)hash["y"], out n);
region.RegionLocY = n;
//m_log.Debug(">> HERE, y: " + region.RegionLocY);
}
if (hash["size_x"] != null)
{
Int32.TryParse((string)hash["size_x"], out n);
region.RegionSizeX = n;
//m_log.Debug(">> HERE, x: " + region.RegionLocX);
}
if (hash["size_y"] != null)
{
Int32.TryParse((string)hash["size_y"], out n);
region.RegionSizeY = n;
//m_log.Debug(">> HERE, y: " + region.RegionLocY);
}
if (hash["region_name"] != null)
{
region.RegionName = (string)hash["region_name"];
//m_log.Debug(">> HERE, region_name: " + region.RegionName);
}
if (hash["hostname"] != null)
{
region.ExternalHostName = (string)hash["hostname"];
//m_log.Debug(">> HERE, hostname: " + region.ExternalHostName);
}
if (hash["http_port"] != null)
{
uint p = 0;
UInt32.TryParse((string)hash["http_port"], out p);
region.HttpPort = p;
//m_log.Debug(">> HERE, http_port: " + region.HttpPort);
}
if (hash["internal_port"] != null)
{
int p = 0;
Int32.TryParse((string)hash["internal_port"], out p);
region.InternalEndPoint = new IPEndPoint(IPAddress.Parse("0.0.0.0"), p);
//m_log.Debug(">> HERE, internal_port: " + region.InternalEndPoint);
}
if (hash["server_uri"] != null)
{
region.ServerURI = (string)hash["server_uri"];
//m_log.Debug(">> HERE, server_uri: " + region.ServerURI);
}
// Successful return
return region;
}
}
catch (Exception e)
{
m_log.Error("[GATEKEEPER SERVICE CONNECTOR]: Got exception while parsing hyperlink response " + e.StackTrace);
return null;
}
return null;
}
}
}