diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-includes/Requests/Cookie/Jar.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/Requests/Cookie/Jar.php	Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,175 @@
+<?php
+/**
+ * Cookie holder object
+ *
+ * @package Requests
+ * @subpackage Cookies
+ */
+
+/**
+ * Cookie holder object
+ *
+ * @package Requests
+ * @subpackage Cookies
+ */
+class Requests_Cookie_Jar implements ArrayAccess, IteratorAggregate {
+	/**
+	 * Actual item data
+	 *
+	 * @var array
+	 */
+	protected $cookies = array();
+
+	/**
+	 * Create a new jar
+	 *
+	 * @param array $cookies Existing cookie values
+	 */
+	public function __construct($cookies = array()) {
+		$this->cookies = $cookies;
+	}
+
+	/**
+	 * Normalise cookie data into a Requests_Cookie
+	 *
+	 * @param string|Requests_Cookie $cookie
+	 * @return Requests_Cookie
+	 */
+	public function normalize_cookie($cookie, $key = null) {
+		if ($cookie instanceof Requests_Cookie) {
+			return $cookie;
+		}
+
+		return Requests_Cookie::parse($cookie, $key);
+	}
+
+	/**
+	 * Normalise cookie data into a Requests_Cookie
+	 *
+	 * @codeCoverageIgnore
+	 * @deprecated Use {@see Requests_Cookie_Jar::normalize_cookie}
+	 * @return Requests_Cookie
+	 */
+	public function normalizeCookie($cookie, $key = null) {
+		return $this->normalize_cookie($cookie, $key);
+	}
+
+	/**
+	 * Check if the given item exists
+	 *
+	 * @param string $key Item key
+	 * @return boolean Does the item exist?
+	 */
+	public function offsetExists($key) {
+		return isset($this->cookies[$key]);
+	}
+
+	/**
+	 * Get the value for the item
+	 *
+	 * @param string $key Item key
+	 * @return string Item value
+	 */
+	public function offsetGet($key) {
+		if (!isset($this->cookies[$key])) {
+			return null;
+		}
+
+		return $this->cookies[$key];
+	}
+
+	/**
+	 * Set the given item
+	 *
+	 * @throws Requests_Exception On attempting to use dictionary as list (`invalidset`)
+	 *
+	 * @param string $key Item name
+	 * @param string $value Item value
+	 */
+	public function offsetSet($key, $value) {
+		if ($key === null) {
+			throw new Requests_Exception('Object is a dictionary, not a list', 'invalidset');
+		}
+
+		$this->cookies[$key] = $value;
+	}
+
+	/**
+	 * Unset the given header
+	 *
+	 * @param string $key
+	 */
+	public function offsetUnset($key) {
+		unset($this->cookies[$key]);
+	}
+
+	/**
+	 * Get an iterator for the data
+	 *
+	 * @return ArrayIterator
+	 */
+	public function getIterator() {
+		return new ArrayIterator($this->cookies);
+	}
+
+	/**
+	 * Register the cookie handler with the request's hooking system
+	 *
+	 * @param Requests_Hooker $hooks Hooking system
+	 */
+	public function register(Requests_Hooker $hooks) {
+		$hooks->register('requests.before_request', array($this, 'before_request'));
+		$hooks->register('requests.before_redirect_check', array($this, 'before_redirect_check'));
+	}
+
+	/**
+	 * Add Cookie header to a request if we have any
+	 *
+	 * As per RFC 6265, cookies are separated by '; '
+	 *
+	 * @param string $url
+	 * @param array $headers
+	 * @param array $data
+	 * @param string $type
+	 * @param array $options
+	 */
+	public function before_request($url, &$headers, &$data, &$type, &$options) {
+		if (!$url instanceof Requests_IRI) {
+			$url = new Requests_IRI($url);
+		}
+
+		if (!empty($this->cookies)) {
+			$cookies = array();
+			foreach ($this->cookies as $key => $cookie) {
+				$cookie = $this->normalize_cookie($cookie, $key);
+
+				// Skip expired cookies
+				if ($cookie->is_expired()) {
+					continue;
+				}
+
+				if ($cookie->domain_matches($url->host)) {
+					$cookies[] = $cookie->format_for_header();
+				}
+			}
+
+			$headers['Cookie'] = implode('; ', $cookies);
+		}
+	}
+
+	/**
+	 * Parse all cookies from a response and attach them to the response
+	 *
+	 * @var Requests_Response $response
+	 */
+	public function before_redirect_check(Requests_Response &$return) {
+		$url = $return->url;
+		if (!$url instanceof Requests_IRI) {
+			$url = new Requests_IRI($url);
+		}
+
+		$cookies = Requests_Cookie::parse_from_headers($return->headers, $url);
+		$this->cookies = array_merge($this->cookies, $cookies);
+		$return->cookies = $this;
+	}
+}
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