#2572: Add additional APIs regarding server restriction

api/src/main/java/net/md_5/bungee/api/config/ServerInfo.java

@@ -43,6 +43,22 @@ public interface ServerInfo
      */
     String getMotd();
 
+    /**
+     * Whether this server is restricted and therefore only players with the
+     * given permission can access it.
+     *
+     * @return if restricted
+     */
+    boolean isRestricted();
+
+    /**
+     * Get the permission required to access this server. Only enforced when the
+     * server is restricted.
+     *
+     * @return access permission
+     */
+    String getPermission();
+
     /**
      * Whether the player can access this server. It will only return false when
      * the player has no permission and this server is restricted.

api/src/test/java/net/md_5/bungee/api/ServerConnectRequestTest.java

@@ -38,11 +38,23 @@ public class ServerConnectRequestTest
         }
 
         @Override
-        public boolean canAccess(CommandSender sender)
+        public boolean isRestricted()
         {
             return false;
         }
 
+        @Override
+        public String getPermission()
+        {
+            return null;
+        }
+
+        @Override
+        public boolean canAccess(CommandSender sender)
+        {
+            return true;
+        }
+
         @Override
         public void sendData(String channel, byte[] data)
         {

proxy/src/main/java/net/md_5/bungee/BungeeServerInfo.java

@@ -69,11 +69,17 @@ public class BungeeServerInfo implements ServerInfo
         return Collections.unmodifiableCollection( new HashSet<>( players ) );
     }
 
+    @Override
+    public String getPermission()
+    {
+        return "bungeecord.server." + name;
+    }
+
     @Override
     public boolean canAccess(CommandSender player)
     {
         Preconditions.checkNotNull( player, "player" );
-        return !restricted || player.hasPermission( "bungeecord.server." + name );
+        return !restricted || player.hasPermission( getPermission() );
     }
 
     @Override