Files
opensim/OpenSim/Server/Handlers/Grid/GridInfoHandlers.cs

368 lines
14 KiB
C#

/*
* 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.Net;
using System.Reflection;
using System.Security;
using log4net;
using Nini.Config;
using Nwc.XmlRpc;
using OpenSim.Framework;
using OpenSim.Framework.Servers.HttpServer;
using OpenSim.Services.Interfaces;
using OpenSim.Services.Base;
using OpenSim.Server.Base;
using OpenMetaverse;
using OpenMetaverse.StructuredData;
using OpenSim.Data;
using GridRegion = OpenSim.Services.Interfaces.GridRegion;
namespace OpenSim.Server.Handlers.Grid
{
public class GridInfoHandlers
{
private static readonly ILog _log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
private IConfigSource m_Config;
private Dictionary<string, string> _info = [];
private Dictionary<string, string> _stats = [];
private byte[] cachedJsonAnswer = null;
private byte[] cachedRestAnswer = null;
private byte[] cachedStatAnswer = null;
private bool stats_available = false;
private int _lastrun;
protected IGridService m_GridService = null;
protected IGridUserData m_Database_griduser = null;
/// <summary>
/// Instantiate a GridInfoService object.
/// </summary>
/// <param name="configPath">path to config path containing
/// grid information</param>
/// <remarks>
/// GridInfoService uses the [GridInfo] section of the
/// standard OpenSim.ini file --- which is not optimal, but
/// anything else requires a general redesign of the config
/// system.
/// </remarks>
public GridInfoHandlers(IConfigSource configSource)
{
m_Config = configSource;
loadGridInfo(configSource);
}
private void loadGridInfo(IConfigSource configSource)
{
IConfig gridCfg = configSource.Configs["GridInfoService"];
stats_available = !gridCfg.GetBoolean("DisableStatsEndpoint", false);
_lastrun = 0;
if (stats_available)
{
stats_available = false;
string gridService = gridCfg.GetString("GridService", string.Empty);
if (!string.IsNullOrWhiteSpace(gridService))
{
object[] args = new object[] { configSource };
m_GridService = ServerUtils.LoadPlugin<IGridService>(gridService, args);
if (m_GridService != null)
{
IConfig dbConfig = configSource.Configs["DatabaseService"];
if (dbConfig is not null)
{
ServiceBase serviceBase = new(configSource);
string dllName = dbConfig.GetString("StorageProvider", String.Empty);
string connString = dbConfig.GetString("ConnectionString", String.Empty);
if (dllName.Length != 0 && connString.Length != 0)
{
m_Database_griduser = serviceBase.LoadPlugin<IGridUserData>(dllName, [connString, "GridUser"]);
if (m_Database_griduser != null)
{
stats_available = true;
_log.Debug("[GRID INFO SERVICE]: Grid Stats enabled");
}
}
}
}
}
if (!stats_available)
{
_log.Warn("[GRID INFO SERVICE]: Could not initialize. Grid stats will be unavailable!");
}
}
_info["platform"] = "OpenSim";
try
{
if (gridCfg != null)
{
foreach (string k in gridCfg.GetKeys())
_info[k] = gridCfg.GetString(k);
}
else
{
IConfig netCfg = configSource.Configs["Network"];
if (netCfg != null)
{
_info["login"] = string.Format("http://127.0.0.1:{0}/",
netCfg.GetString("http_listener_port", ConfigSettings.DefaultRegionHttpPort.ToString()));
}
else
{
_info["login"] = "http://127.0.0.1:9000/";
}
IssueWarning();
}
_info.TryGetValue("home", out string tmp);
tmp = Util.GetConfigVarFromSections<string>(m_Config, "HomeURI", ["Startup", "Hypergrid"], tmp);
if (string.IsNullOrEmpty(tmp))
{
IConfig logincfg = m_Config.Configs["LoginService"];
if (logincfg != null)
tmp = logincfg.GetString("SRV_HomeURI", tmp);
}
if (!string.IsNullOrEmpty(tmp))
_info["home"] = OSD.FromString(tmp);
tmp = Util.GetConfigVarFromSections<string>(m_Config, "HomeURIAlias", ["Startup", "Hypergrid"], string.Empty);
if (!string.IsNullOrEmpty(tmp))
_info["homealias"] = OSD.FromString(tmp);
_info.TryGetValue("gatekeeper", out tmp);
tmp = Util.GetConfigVarFromSections<string>(m_Config, "GatekeeperURI", ["Startup", "Hypergrid"], tmp);
if (!string.IsNullOrEmpty(tmp))
_info["gatekeeper"] = OSD.FromString(tmp);
tmp = Util.GetConfigVarFromSections<string>(m_Config, "GatekeeperURIAlias", ["Startup", "Hypergrid"], string.Empty);
if (!string.IsNullOrEmpty(tmp))
_info["gatekeeperalias"] = OSD.FromString(tmp);
}
catch (Exception)
{
_log.Warn("[GRID INFO SERVICE]: Cannot get grid info from config source, using minimal defaults");
}
_log.DebugFormat("[GRID INFO SERVICE]: Grid info service initialized with {0} keys", _info.Count);
}
private void IssueWarning()
{
_log.Warn("[GRID INFO SERVICE]: found no [GridInfoService] section in your configuration files");
_log.Warn("[GRID INFO SERVICE]: trying to guess sensible defaults, you might want to provide better ones:");
foreach (KeyValuePair<string, string> k in _info)
{
_log.Warn($"[GRID INFO SERVICE]: {k.Key}: {k.Value}");
}
}
public XmlRpcResponse XmlRpcGridInfoMethod(XmlRpcRequest request, IPEndPoint remoteClient)
{
XmlRpcResponse response = new XmlRpcResponse();
Hashtable responseData = [];
_log.Debug("[GRID INFO SERVICE]: Request for grid info");
foreach (KeyValuePair<string, string> k in _info)
{
responseData[k.Key] = k.Value;
}
response.Value = responseData;
return response;
}
public void RestGetGridInfoMethod(IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
{
httpResponse.KeepAlive = false;
if (httpRequest.HttpMethod != "GET")
{
httpResponse.StatusCode = (int)HttpStatusCode.MethodNotAllowed;
return;
}
if(cachedRestAnswer == null)
{
osUTF8 osb = OSUTF8Cached.Acquire();
osb.AppendASCII("<gridinfo>");
foreach (KeyValuePair<string, string> k in _info)
{
osb.AppendASCII('<');
osb.AppendASCII(k.Key);
osb.AppendASCII('>');
osb.AppendASCII(SecurityElement.Escape(k.Value.ToString()));
osb.AppendASCII("</");
osb.AppendASCII(k.Key);
osb.AppendASCII('>');
}
osb.AppendASCII("</gridinfo>");
cachedRestAnswer = OSUTF8Cached.GetArrayAndRelease(osb);
}
httpResponse.ContentType = "application/xml";
httpResponse.RawBuffer = cachedRestAnswer;
}
/// <summary>
/// Get GridInfo in json format: Used by the OSSL osGetGrid*
/// Adding the SRV_HomeURI to the kvp returned for use in scripts
/// </summary>
/// <returns>
/// json string
/// </returns>
/// </param>
/// <param name='httpRequest'>
/// Http request.
/// </param>
/// <param name='httpResponse'>
/// Http response.
/// </param>
public void JsonGetGridInfoMethod(IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
{
httpResponse.KeepAlive = false;
if (httpRequest.HttpMethod != "GET")
{
httpResponse.StatusCode = (int)HttpStatusCode.MethodNotAllowed;
return;
}
if (cachedJsonAnswer == null)
{
OSDMap map = new OSDMap();
foreach (KeyValuePair<string, string> k in _info)
{
map[k.Key] = OSD.FromString(k.Value.ToString());
}
cachedJsonAnswer = OSDParser.SerializeJsonToBytes(map);
}
httpResponse.ContentType = "application/json";
httpResponse.RawBuffer = cachedJsonAnswer;
}
public void GetGridStats(int now)
{
int region_count = 0;
int active_users = 0;
int residents = 0;
try
{
// Fetch region data
if (m_GridService is not null)
{
List<GridRegion> regions = m_GridService.GetOnlineRegions(UUID.Zero, 0, 0, int.MaxValue);
foreach (GridRegion region in regions)
{
// Count individual region equivalent
region_count += (region.RegionSizeX * region.RegionSizeY) >> 16;
}
regions = null;
}
// Fetch all grid users, can't do a simple query unfortunately
GridUserData[] gridusers = m_Database_griduser.GetAll(string.Empty);
// Count if last login was within the last 30 days
int oldestTime = now - 2592000;
// Go through grid user data
foreach (GridUserData griduser in gridusers)
{
// Don't count if uui
if (!griduser.UserID.Contains(';'))
residents++;
if(griduser.Data.TryGetValue("Login", out string login) &&
int.TryParse(login, out int last_login))
{
if (last_login == 0)
continue;
if (last_login > oldestTime)
active_users++;
}
}
}
catch (Exception ex)
{
_log.Error($"[GRID INFO SERVICE]: Could not fetch grid stats: {ex.Message}");
}
_stats["residents"] = residents.ToString();
_stats["active_users"] = active_users.ToString();
_stats["region_count"] = region_count.ToString();
_lastrun = now;
}
public void RestGridStatsHandler(IOSHttpRequest httpRequest, IOSHttpResponse httpResponse)
{
httpResponse.KeepAlive = false;
if (httpRequest.HttpMethod != "GET" || !stats_available)
{
httpResponse.StatusCode = (int)HttpStatusCode.MethodNotAllowed;
return;
}
// Only fetch new stats if the last run is 15 minutes old since this is heavy db stuff
int now = Util.UnixTimeSinceEpoch();
if (cachedStatAnswer == null || (now - 900) > _lastrun)
{
GetGridStats(now);
osUTF8 osb = OSUTF8Cached.Acquire();
osb.AppendASCII("<gridstats>");
foreach (KeyValuePair<string, string> k in _stats)
{
osb.AppendASCII('<');
osb.AppendASCII(k.Key);
osb.AppendASCII('>');
osb.AppendASCII(SecurityElement.Escape(k.Value.ToString()));
osb.AppendASCII("</");
osb.AppendASCII(k.Key);
osb.AppendASCII('>');
}
osb.AppendASCII("</gridstats>");
cachedStatAnswer = OSUTF8Cached.GetArrayAndRelease(osb);
}
httpResponse.ContentType = "application/xml";
httpResponse.RawBuffer = cachedStatAnswer;
}
}
}