From c7a8afbb8da40e09252d58d95c89b8a99a684157 Mon Sep 17 00:00:00 2001
From: Diva Canto
Date: Sat, 24 Aug 2013 03:41:56 -0700
Subject: Make HG logins fall back to fallback regions if the desired region
 fails.

---
 .../Services/HypergridService/GatekeeperService.cs | 27 +++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

(limited to 'OpenSim/Services/HypergridService')

diff --git a/OpenSim/Services/HypergridService/GatekeeperService.cs b/OpenSim/Services/HypergridService/GatekeeperService.cs
index e10c4cb..4a6b079 100644
--- a/OpenSim/Services/HypergridService/GatekeeperService.cs
+++ b/OpenSim/Services/HypergridService/GatekeeperService.cs
@@ -72,11 +72,14 @@ namespace OpenSim.Services.HypergridService
         private static Uri m_Uri;
         private static GridRegion m_DefaultGatewayRegion;
 
+        private static Random m_Random;
+
         public GatekeeperService(IConfigSource config, ISimulationService simService)
         {
             if (!m_Initialized)
             {
                 m_Initialized = true;
+                m_Random = new Random();
 
                 IConfig serverConfig = config.Configs["GatekeeperService"];
                 if (serverConfig == null)
@@ -220,6 +223,8 @@ namespace OpenSim.Services.HypergridService
         public bool LoginAgent(AgentCircuitData aCircuit, GridRegion destination, out string reason)
         {
             reason = string.Empty;
+            List<GridRegion> defaultRegions;
+            List<GridRegion> fallbackRegions;
 
             string authURL = string.Empty;
             if (aCircuit.ServiceURLs.ContainsKey("HomeURI"))
@@ -374,8 +379,14 @@ namespace OpenSim.Services.HypergridService
             destination = m_GridService.GetRegionByUUID(m_ScopeID, destination.RegionID);
             if (destination == null)
             {
-                reason = "Destination region not found";
-                return false;
+                defaultRegions = m_GridService.GetDefaultRegions(UUID.Zero);
+                if (defaultRegions == null || (defaultRegions != null && defaultRegions.Count == 0))
+                {
+                    reason = "Destination region not found";
+                    return false;
+                }
+                int index = m_Random.Next(0, defaultRegions.Count - 1);
+                destination = defaultRegions[index];
             }
 
             m_log.DebugFormat(
@@ -415,7 +426,17 @@ namespace OpenSim.Services.HypergridService
 
             m_log.DebugFormat("[GATEKEEPER SERVICE]: Launching {0} {1}", aCircuit.Name, loginFlag);
 
-            return m_SimulationService.CreateAgent(destination, aCircuit, (uint)loginFlag, out reason);
+            // try login to the desired region
+            if (m_SimulationService.CreateAgent(destination, aCircuit, (uint)loginFlag, out reason))
+                return true;
+
+            // if that failed, try the fallbacks
+            fallbackRegions = m_GridService.GetFallbackRegions(UUID.Zero, destination.RegionLocX, destination.RegionLocY);
+            foreach (GridRegion r in fallbackRegions)
+                if (m_SimulationService.CreateAgent(r, aCircuit, (uint)loginFlag, out reason))
+                    return true;
+
+            return false;
         }
 
         protected bool Authenticate(AgentCircuitData aCircuit)
-- 
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