Add upstream plugins

Signed-off-by: Adrian Nöthlich <git@promasu.tech>

wp-content/plugins/all-in-one-event-calendar/lib/validator/abstract.php

@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * The abstract class for validators.
+ *
+ * @author     Time.ly Network Inc.
+ * @since      2.0
+ *
+ * @package    AI1EC
+ * @subpackage AI1EC.Validator
+ */
+abstract class Ai1ec_Validator extends Ai1ec_Base {
+
+    /**
+     * @var mixed The value to validate.
+     */
+    protected $_value;
+
+    /**
+     * @var mixed Additional info needed for complex validation
+     */
+    protected $_context;
+
+    /**
+     * Constructor function
+     *
+     * @param Ai1ec_Registry_Object $registry
+     * @param string $value
+     * @param mixed $context
+     */
+    public function __construct( Ai1ec_Registry_Object $registry, $value, $context = array() ) {
+        parent::__construct( $registry );
+        $this->_value   = $value;
+        $this->_context = $context;
+    }
+
+    /**
+     * Validates the value.
+     *
+     * @throws Ai1ec_Value_Not_Valid_Exception if the velue is not valid.
+     *
+     * @return mixed the validated value (allows to set it to default)
+     */
+    abstract public function validate();
+
+}