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https://github.com/opensim/opensim.git
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add a class to store and process some grid information. For now just gatekeeper url
This commit is contained in:
UbitUmarov
247
OpenSim/Framework/GridInfo.cs
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247
OpenSim/Framework/GridInfo.cs
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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.Generic;
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using System.Net;
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using System.Reflection;
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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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namespace OpenSim.Framework
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{
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public struct OSHostURL:IComparable<OSHostURL>, IEquatable<OSHostURL>
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{
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public string Host;
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public int Port;
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public string URL;
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public UriHostNameType URLType;
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public bool SecureHTTP;
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public IPAddress IP;
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public OSHostURL(string url, bool withDNSResolve = false)
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{
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Host = string.Empty;
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Port = 80;
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URL = string.Empty;
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URLType = UriHostNameType.Unknown;
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IP = null;
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SecureHTTP = false;
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if (String.IsNullOrEmpty(url))
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return;
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url = url.ToLowerInvariant();
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try
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{
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int urllen = url.Length;
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if (url[urllen - 1] == '/')
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--urllen;
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int start;
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if(url.StartsWith("http"))
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{
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if(url[4] == 's')
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{
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start = 8;
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SecureHTTP = true;
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}
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else
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start = 7;
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}
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else
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start = 0;
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string host;
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UriHostNameType type;
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int indx = url.IndexOf(':', start, urllen - start);
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if (indx > 0)
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{
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host = url.Substring(start, indx - start);
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type = Uri.CheckHostName(host);
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if (type == UriHostNameType.Unknown || type == UriHostNameType.Basic)
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return;
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++indx;
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string sport = url.Substring(indx, urllen - indx);
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int tmp;
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if (!int.TryParse(sport, out tmp) || tmp < 0 || tmp > 65535)
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return;
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URLType = type;
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Host = host;
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Port = tmp;
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URL = (SecureHTTP ? "https://" : "http://") + Host + ":" + Port.ToString() + "/";
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}
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else
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{
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host = url.Substring(start, urllen - start);
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type = Uri.CheckHostName(host);
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if (type == UriHostNameType.Unknown || type == UriHostNameType.Basic)
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return;
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URLType = type;
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Host = host;
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if (SecureHTTP)
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URL = "https://" + Host + ":443/";
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else
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URL = "http://" + Host + ":80/";
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}
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if (withDNSResolve && URLType == UriHostNameType.Dns)
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{
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IPAddress ip = Util.GetHostFromDNS(host);
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if (ip != null)
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IP = ip;
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}
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}
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catch
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{
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URLType = UriHostNameType.Unknown;
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IP = null;
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}
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}
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public bool ResolveDNS()
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{
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if (URLType == UriHostNameType.Unknown || String.IsNullOrWhiteSpace(Host))
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return false;
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IPAddress ip = Util.GetHostFromDNS(Host);
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if (ip == null)
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return false;
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return true;
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}
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public bool IsValidHost()
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{
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return URLType != UriHostNameType.Unknown;
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}
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public bool IsResolvedHost()
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{
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return (URLType != UriHostNameType.Unknown) && (IP != null);
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}
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public int CompareTo(OSHostURL other)
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{
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if (Port == other.Port && other.URLType != UriHostNameType.Unknown)
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{
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if (URLType == other.URLType)
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return Host.CompareTo(other.Host);
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}
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return -1;
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}
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public bool Equals(OSHostURL other)
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{
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if (Port == other.Port && other.URLType != UriHostNameType.Unknown)
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{
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if (URLType == other.URLType)
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return Host.Equals(other.Host);
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}
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return false;
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}
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public override int GetHashCode()
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{
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return URL.GetHashCode();
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}
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}
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public class GridInfo
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{
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private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
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private OSHostURL m_gateKeeperURL;
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private HashSet<OSHostURL> m_gateKeeperAlias;
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//private OSHostURL m_homeURL;
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//private HashSet<OSHostURL> m_homeURLAlias;
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public GridInfo (IConfigSource config, string defaultHost = "")
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{
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string[] sections = new string[] { "Startup", "Hypergrid", "UserAgentService" };
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string gatekeeper = Util.GetConfigVarFromSections<string>(config, "GatekeeperURI", sections, String.Empty);
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if (string.IsNullOrEmpty(gatekeeper))
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{
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IConfig serverConfig = config.Configs["GatekeeperService"];
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if (serverConfig != null)
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gatekeeper = serverConfig.GetString("ExternalName", string.Empty);
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}
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if (string.IsNullOrEmpty(gatekeeper))
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{
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if(!string.IsNullOrEmpty(defaultHost))
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m_gateKeeperURL = new OSHostURL(defaultHost, true);
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}
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else
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m_gateKeeperURL = new OSHostURL(gatekeeper, true);
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if(m_gateKeeperURL.URLType == UriHostNameType.Unknown)
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throw new Exception(String.Format("could not find gatekeeper URL"));
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if (m_gateKeeperURL.IP == null)
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throw new Exception(String.Format("could not resolve gatekeeper hostname"));
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string gatekeeperURIAlias = Util.GetConfigVarFromSections<string>(config, "GatekeeperURIAlias", sections, String.Empty);
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if (!string.IsNullOrWhiteSpace(gatekeeperURIAlias))
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{
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string[] alias = gatekeeperURIAlias.Split(',');
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for (int i = 0; i < alias.Length; ++i)
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{
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OSHostURL tmp = new OSHostURL(alias[i].Trim(), false);
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if(m_gateKeeperAlias == null)
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m_gateKeeperAlias = new HashSet<OSHostURL>();
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if (tmp.URLType != UriHostNameType.Unknown)
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m_gateKeeperAlias.Add(tmp);
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}
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}
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}
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public string GateKeeperURL
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{
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get
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{
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if(m_gateKeeperURL.URLType != UriHostNameType.Unknown)
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return m_gateKeeperURL.URL;
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return null;
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}
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}
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public int IsLocalGrid(string gatekeeper)
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{
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OSHostURL tmp = new OSHostURL(gatekeeper, false);
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if(tmp.URLType == UriHostNameType.Unknown)
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return -1;
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if (tmp.Equals(m_gateKeeperURL))
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return 1;
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if (m_gateKeeperAlias != null && m_gateKeeperAlias.Contains(tmp))
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return 1;
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return 0;
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}
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}
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}
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