From 1f4d3d35822c5ad3dbdd5f363014f1bf9afebdc6 Mon Sep 17 00:00:00 2001
From: Snoopy Pfeffer
Date: Wed, 11 Apr 2012 18:52:07 +0200
Subject: HGFriendsModule: Added optional user level based restriction to send
 friendship invitations to foreign users.

---
 .../CoreModules/Avatar/Friends/HGFriendsModule.cs  | 24 ++++++++++++++++++----
 bin/config-include/GridCommon.ini.example          |  4 ++++
 bin/config-include/StandaloneCommon.ini.example    |  4 ++++
 3 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/OpenSim/Region/CoreModules/Avatar/Friends/HGFriendsModule.cs b/OpenSim/Region/CoreModules/Avatar/Friends/HGFriendsModule.cs
index ddb6a71..f8fbbbb 100644
--- a/OpenSim/Region/CoreModules/Avatar/Friends/HGFriendsModule.cs
+++ b/OpenSim/Region/CoreModules/Avatar/Friends/HGFriendsModule.cs
@@ -50,6 +50,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
     {
         private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
 
+        private int m_levelHGFriends = 0;
+
         IUserManagement m_uMan;
         public IUserManagement UserManagementModule
         {
@@ -95,6 +97,8 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
             IConfig friendsConfig = config.Configs["HGFriendsModule"];
             if (friendsConfig != null)
             {
+                m_levelHGFriends = friendsConfig.GetInt("LevelHGFriends", 0);
+
                 // TODO: read in all config variables pertaining to
                 // HG friendship permissions
             }
@@ -126,10 +130,22 @@ namespace OpenSim.Region.CoreModules.Avatar.Friends
                 UUID principalID = new UUID(im.fromAgentID);
                 UUID friendID = new UUID(im.toAgentID);
 
-                // TODO: CHECK IF friendID is foreigner and if principalID has the permission
-                // to request these kinds of friendships. If not, return immediately.
-                // Maybe you want to let the client know too with
-                // client.SendAlertMessage
+                // Check if friendID is foreigner and if principalID has the permission
+                // to request friendships with foreigners. If not, return immediately.
+                if (!UserManagementModule.IsLocalGridUser(friendID))
+                {
+                    ScenePresence avatar = null;
+                    client.Scene.TryGetScenePresence(principalID, out avatar);
+
+                    if (avatar == null)
+                        return;
+
+                    if (avatar.UserLevel < m_levelHGFriends)
+                    {
+                        client.SendAgentAlertMessage("Unable to send friendship invitation to foreigner. Insufficient permissions.", false);
+                        return;
+                    }
+                }
             }
 
             base.OnInstantMessage(client, im);
diff --git a/bin/config-include/GridCommon.ini.example b/bin/config-include/GridCommon.ini.example
index fa6f525..8d7f6fc 100644
--- a/bin/config-include/GridCommon.ini.example
+++ b/bin/config-include/GridCommon.ini.example
@@ -137,6 +137,10 @@
     ;; uncomment the next line. You may want to do this on sims that have licensed content.
     ; OutboundPermission = False
 
+[HGFriendsModule]
+    ; User level required to be able to send friendship invitations to foreign users
+    ;LevelHGFriends = 0;
+
 [UserAgentService]
     ;
     ; === HG ONLY ===
diff --git a/bin/config-include/StandaloneCommon.ini.example b/bin/config-include/StandaloneCommon.ini.example
index 8fe64df..e4bc548 100644
--- a/bin/config-include/StandaloneCommon.ini.example
+++ b/bin/config-include/StandaloneCommon.ini.example
@@ -61,6 +61,10 @@
     ;; uncomment the next line. You may want to do this on sims that have licensed content.
     ; OutboundPermission = False
 
+[HGFriendsModule]
+    ; User level required to be able to send friendship invitations to foreign users
+    ;LevelHGFriends = 0;
+
 [GridService]
     ;; For in-memory region storage (default)
     StorageProvider = "OpenSim.Data.Null.dll:NullRegionData"
-- 
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