Add ability to check permissions by player name

src/main/java/fr/xephi/authme/permission/PermissionsManager.java

@@ -216,6 +216,15 @@ public class PermissionsManager {
         }
     }
 
+    /**
+     * Get the current permissions system handler.
+     *
+     * @return The permissions system handler.
+     */
+    public PermissionHandler getHandler() {
+        return handler;
+    }
+
     /**
      * Check if the command sender has permission for the given permissions node. If no permissions system is used or
      * if the sender is not a player (e.g. console user), the player has to be OP in order to have the permission.
@@ -240,6 +249,28 @@ public class PermissionsManager {
         return handler.hasPermission(player, permissionNode);
     }
 
+    /**
+     * Check if a player has permission for the given permission node. This is for offline player checks. If no permissions
+     * system is used, then the player will not have permission.
+     *
+     * @param name           The name of the player.
+     * @param permissionNode The permission node to verify.
+     *
+     * @return
+     */
+    public boolean hasPermission(String name, PermissionNode permissionNode) {
+        // Check if the permission node is null
+        if (permissionNode == null) {
+            return true;
+        }
+
+        if (!isEnabled()) {
+            return false;
+        }
+
+        return handler.hasPermission(name, permissionNode);
+    }
+
     /**
      * Check whether the current permissions system has group support.
      * If no permissions system is hooked, false will be returned.