First Local Commit - After Clean up.

Signed-off-by: Rick Hays <rhays@haysgang.com>

system/Filters/FilterInterface.php

@@ -0,0 +1,83 @@
+<?php
+
+/**
+ * CodeIgniter
+ *
+ * An open source application development framework for PHP
+ *
+ * This content is released under the MIT License (MIT)
+ *
+ * Copyright (c) 2014-2019 British Columbia Institute of Technology
+ * Copyright (c) 2019 CodeIgniter Foundation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @package    CodeIgniter
+ * @author     CodeIgniter Dev Team
+ * @copyright  2019 CodeIgniter Foundation
+ * @license    https://opensource.org/licenses/MIT	MIT License
+ * @link       https://codeigniter.com
+ * @since      Version 4.0.0
+ * @filesource
+ */
+
+namespace CodeIgniter\Filters;
+
+use CodeIgniter\HTTP\RequestInterface;
+use CodeIgniter\HTTP\ResponseInterface;
+
+/**
+ * Filter interface
+ */
+interface FilterInterface
+{
+
+	/**
+	 * Do whatever processing this filter needs to do.
+	 * By default it should not return anything during
+	 * normal execution. However, when an abnormal state
+	 * is found, it should return an instance of
+	 * CodeIgniter\HTTP\Response. If it does, script
+	 * execution will end and that Response will be
+	 * sent back to the client, allowing for error pages,
+	 * redirects, etc.
+	 *
+	 * @param \CodeIgniter\HTTP\RequestInterface $request
+	 *
+	 * @return mixed
+	 */
+	public function before(RequestInterface $request);
+
+	//--------------------------------------------------------------------
+
+	/**
+	 * Allows After filters to inspect and modify the response
+	 * object as needed. This method does not allow any way
+	 * to stop execution of other after filters, short of
+	 * throwing an Exception or Error.
+	 *
+	 * @param \CodeIgniter\HTTP\RequestInterface  $request
+	 * @param \CodeIgniter\HTTP\ResponseInterface $response
+	 *
+	 * @return mixed
+	 */
+	public function after(RequestInterface $request, ResponseInterface $response);
+
+	//--------------------------------------------------------------------
+}