Implemented concept peer association manager

src/FederationLib/Enums/Standard/ErrorCodes.php

@@ -1,4 +1,4 @@
-<?php
+<?php // TODO: Fix the error-codes once it's been decided what they should be.
 
     namespace FederationLib\Enums\Standard;
 
@@ -14,11 +14,6 @@
          */
         public const ACCESS_DENIED = -1001;
 
-        /**
-         * The requested method is disabled.
-         */
-        public const METHOD_DISABLED = -1002;
-
 
 
         /**
@@ -56,6 +51,8 @@
 
         public const INVALID_FEDERATED_ADDRESS = 2002;
 
+        public const INVALID_PEER_ASSOCIATION_TYPE = 2003;
+
 
         public const ALL = [
             self::INTERNAL_SERVER_ERROR,
@@ -69,6 +66,7 @@
 
             self::INVALID_PEER_METADATA,
             self::PEER_METADATA_NOT_FOUND,
-            self::INVALID_FEDERATED_ADDRESS
+            self::INVALID_FEDERATED_ADDRESS,
+            self::INVALID_PEER_ASSOCIATION_TYPE
         ];
     }