First Local Commit - After Clean up.

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

system/HTTP/RedirectResponse.php

@@ -0,0 +1,172 @@
+<?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\HTTP;
+
+use CodeIgniter\HTTP\Exceptions\HTTPException;
+use Config\Services;
+
+/**
+ * Handle a redirect response
+ */
+class RedirectResponse extends Response
+{
+	/**
+	 * Sets the URI to redirect to and, optionally, the HTTP status code to use.
+	 * If no code is provided it will be automatically determined.
+	 *
+	 * @param string       $uri    The URI to redirect to
+	 * @param integer|null $code   HTTP status code
+	 * @param string       $method
+	 *
+	 * @return $this
+	 */
+	public function to(string $uri, int $code = null, string $method = 'auto')
+	{
+		// If it appears to be a relative URL, then convert to full URL
+		// for better security.
+		if (strpos($uri, 'http') !== 0)
+		{
+			$url = current_url(true)->resolveRelativeURI($uri);
+			$uri = (string)$url;
+		}
+
+		return $this->redirect($uri, $method, $code);
+	}
+
+	/**
+	 * Sets the URI to redirect to but as a reverse-routed or named route
+	 * instead of a raw URI.
+	 *
+	 * @param string       $route
+	 * @param array        $params
+	 * @param integer|null $code
+	 * @param string       $method
+	 *
+	 * @return $this
+	 */
+	public function route(string $route, array $params = [], int $code = 302, string $method = 'auto')
+	{
+		$routes = Services::routes(true);
+
+		$route = $routes->reverseRoute($route, ...$params);
+
+		if (! $route)
+		{
+			throw HTTPException::forInvalidRedirectRoute($route);
+		}
+
+		return $this->redirect(base_url($route), $method, $code);
+	}
+
+	/**
+	 * Helper function to return to previous page.
+	 *
+	 * Example:
+	 *  return redirect()->back();
+	 *
+	 * @param integer|null $code
+	 * @param string       $method
+	 *
+	 * @return $this
+	 */
+	public function back(int $code = null, string $method = 'auto')
+	{
+		$this->ensureSession();
+
+		return $this->redirect(previous_url(), $method, $code);
+	}
+
+	/**
+	 * Specifies that the current $_GET and $_POST arrays should be
+	 * packaged up with the response. It will then be available via
+	 * the 'old()' helper function.
+	 *
+	 * @return $this
+	 */
+	public function withInput()
+	{
+		$session = $this->ensureSession();
+
+		$input = [
+			'get'  => $_GET ?? [],
+			'post' => $_POST ?? [],
+		];
+
+		$session->setFlashdata('_ci_old_input', $input);
+
+		// If the validator has any errors, transmit those back
+		// so they can be displayed when the validation is
+		// handled within a method different than displaying the form.
+		$validator = Services::validation();
+		if (! empty($validator->getErrors()))
+		{
+			$session->setFlashdata('_ci_validation_errors', serialize($validator->getErrors()));
+		}
+
+		return $this;
+	}
+
+	/**
+	 * Adds a key and message to the session as Flashdata.
+	 *
+	 * @param string       $key
+	 * @param string|array $message
+	 *
+	 * @return $this
+	 */
+	public function with(string $key, $message)
+	{
+		$session = $this->ensureSession();
+
+		$session->setFlashdata($key, $message);
+
+		return $this;
+	}
+
+	/**
+	 * Ensures the session is loaded and started.
+	 *
+	 * @return \CodeIgniter\Session\Session
+	 */
+	protected function ensureSession()
+	{
+		return Services::session();
+	}
+}