Initial EV files

system/Filters/Honeypot.php

@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * This file is part of the CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Filters;
+
+use CodeIgniter\Honeypot\Exceptions\HoneypotException;
+use CodeIgniter\HTTP\RequestInterface;
+use CodeIgniter\HTTP\ResponseInterface;
+use Config\Services;
+
+/**
+ * Honeypot filter
+ */
+class Honeypot implements FilterInterface
+{
+	/**
+	 * Checks if Honeypot field is empty; if not
+	 * then the requester is a bot
+	 *
+	 * @param RequestInterface $request
+	 * @param array|null       $arguments
+	 *
+	 * @return void
+	 */
+	public function before(RequestInterface $request, $arguments = null)
+	{
+		$honeypot = Services::honeypot(new \Config\Honeypot());
+		if ($honeypot->hasContent($request))
+		{
+			throw HoneypotException::isBot();
+		}
+	}
+
+	/**
+	 * Attach a honeypot to the current response.
+	 *
+	 * @param RequestInterface  $request
+	 * @param ResponseInterface $response
+	 * @param array|null        $arguments
+	 *
+	 * @return void
+	 */
+	public function after(RequestInterface $request, ResponseInterface $response, $arguments = null)
+	{
+		$honeypot = Services::honeypot(new \Config\Honeypot());
+		$honeypot->attachHoneypot($response);
+	}
+}