Add changenick API

api/actions/changenick.php

@@ -0,0 +1,17 @@
+<?php
+
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+$nick = htmlspecialchars(trim($VARS["nick"]));
+
+if ($database->has("players", ["AND" => ["nickname" => $nick, "accountid[!]" => getRequestUser()->getUID()]])) {
+    sendJsonResp($Strings->get("Chosen nickname already in use, try another.", false), "ERROR");
+}
+
+$database->update("players", ["nickname" => $nick], ["accountid" => getRequestUser()->getUID()]);
+
+sendJsonResp(["name" => $nick]);

api/apisettings.php

@@ -25,6 +25,12 @@ $APIS = [
             "id (optional)" => "/[0-9]+/"
         ]
     ],
+    "changenick" => [
+        "load" => "changenick.php",
+        "vars" => [
+            "nick" => "string"
+        ]
+    ],
     "getprofile" => [
         "load" => "getprofile.php",
         "vars" => [