[LIB_REFACTOR] Moving files into separate semantic categories

lib/exceptions/nouploadedmediaexception.php

@@ -0,0 +1,31 @@
+<?php
+
+if (!defined('GNUSOCIAL')) { exit(1); }
+
+/**
+ * Parent class for an exception when a POST upload does not contain a file.
+ *
+ * @category Exception
+ * @package  GNUsocial
+ * @author   Mikael Nordfeldth <mmn@hethane.se>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
+ * @link     http://gnu.io/
+ */
+
+class NoUploadedMediaException extends ClientException
+{
+    public $fieldname = null;
+
+    public function __construct($fieldname, $msg=null)
+    {
+        $this->fieldname = $fieldname;
+
+        if ($msg === null) {
+            // TRANS: Exception text shown when no uploaded media was provided in POST
+            // TRANS: %s is the HTML input field name.
+            $msg = sprintf(_('There is no uploaded media for input field "%s".'), $this->fieldname);
+        }
+
+        parent::__construct($msg, 400);
+    }
+}