Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/symfony/browser-kit/Response.php

@@ -0,0 +1,139 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\BrowserKit;
+
+/**
+ * Response object.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @api
+ */
+class Response
+{
+    protected $content;
+    protected $status;
+    protected $headers;
+
+    /**
+     * Constructor.
+     *
+     * The headers array is a set of key/value pairs. If a header is present multiple times
+     * then the value is an array of all the values.
+     *
+     * @param string $content The content of the response
+     * @param int    $status  The response status code
+     * @param array  $headers An array of headers
+     *
+     * @api
+     */
+    public function __construct($content = '', $status = 200, array $headers = array())
+    {
+        $this->content = $content;
+        $this->status = $status;
+        $this->headers = $headers;
+    }
+
+    /**
+     * Converts the response object to string containing all headers and the response content.
+     *
+     * @return string The response with headers and content
+     */
+    public function __toString()
+    {
+        $headers = '';
+        foreach ($this->headers as $name => $value) {
+            if (is_string($value)) {
+                $headers .= $this->buildHeader($name, $value);
+            } else {
+                foreach ($value as $headerValue) {
+                    $headers .= $this->buildHeader($name, $headerValue);
+                }
+            }
+        }
+
+        return $headers."\n".$this->content;
+    }
+
+    /**
+     * Returns the build header line.
+     *
+     * @param string $name  The header name
+     * @param string $value The header value
+     *
+     * @return string The built header line
+     */
+    protected function buildHeader($name, $value)
+    {
+        return sprintf("%s: %s\n", $name, $value);
+    }
+
+    /**
+     * Gets the response content.
+     *
+     * @return string The response content
+     *
+     * @api
+     */
+    public function getContent()
+    {
+        return $this->content;
+    }
+
+    /**
+     * Gets the response status code.
+     *
+     * @return int The response status code
+     *
+     * @api
+     */
+    public function getStatus()
+    {
+        return $this->status;
+    }
+
+    /**
+     * Gets the response headers.
+     *
+     * @return array The response headers
+     *
+     * @api
+     */
+    public function getHeaders()
+    {
+        return $this->headers;
+    }
+
+    /**
+     * Gets a response header.
+     *
+     * @param string $header The header name
+     * @param bool   $first  Whether to return the first value or all header values
+     *
+     * @return string|array The first header value if $first is true, an array of values otherwise
+     */
+    public function getHeader($header, $first = true)
+    {
+        $normalizedHeader = str_replace('-', '_', strtolower($header));
+        foreach ($this->headers as $key => $value) {
+            if (str_replace('-', '_', strtolower($key)) === $normalizedHeader) {
+                if ($first) {
+                    return is_array($value) ? (count($value) ? $value[0] : '') : $value;
+                }
+
+                return is_array($value) ? $value : array($value);
+            }
+        }
+
+        return $first ? null : array();
+    }
+}