diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-includes/Requests/Proxy/HTTP.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/Requests/Proxy/HTTP.php	Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,151 @@
+<?php
+/**
+ * HTTP Proxy connection interface
+ *
+ * @package Requests
+ * @subpackage Proxy
+ * @since 1.6
+ */
+
+/**
+ * HTTP Proxy connection interface
+ *
+ * Provides a handler for connection via an HTTP proxy
+ *
+ * @package Requests
+ * @subpackage Proxy
+ * @since 1.6
+ */
+class Requests_Proxy_HTTP implements Requests_Proxy {
+	/**
+	 * Proxy host and port
+	 *
+	 * Notation: "host:port" (eg 127.0.0.1:8080 or someproxy.com:3128)
+	 *
+	 * @var string
+	 */
+	public $proxy;
+
+	/**
+	 * Username
+	 *
+	 * @var string
+	 */
+	public $user;
+
+	/**
+	 * Password
+	 *
+	 * @var string
+	 */
+	public $pass;
+
+	/**
+	 * Do we need to authenticate? (ie username & password have been provided)
+	 *
+	 * @var boolean
+	 */
+	public $use_authentication;
+
+	/**
+	 * Constructor
+	 *
+	 * @since 1.6
+	 * @throws Requests_Exception On incorrect number of arguments (`authbasicbadargs`)
+	 * @param array|null $args Array of user and password. Must have exactly two elements
+	 */
+	public function __construct($args = null) {
+		if (is_string($args)) {
+			$this->proxy = $args;
+		}
+		elseif (is_array($args)) {
+			if (count($args) == 1) {
+				list($this->proxy) = $args;
+			}
+			elseif (count($args) == 3) {
+				list($this->proxy, $this->user, $this->pass) = $args;
+				$this->use_authentication = true;
+			}
+			else {
+				throw new Requests_Exception('Invalid number of arguments', 'proxyhttpbadargs');
+			}
+		}
+	}
+
+	/**
+	 * Register the necessary callbacks
+	 *
+	 * @since 1.6
+	 * @see curl_before_send
+	 * @see fsockopen_remote_socket
+	 * @see fsockopen_remote_host_path
+	 * @see fsockopen_header
+	 * @param Requests_Hooks $hooks Hook system
+	 */
+	public function register(Requests_Hooks &$hooks) {
+		$hooks->register('curl.before_send', array(&$this, 'curl_before_send'));
+
+		$hooks->register('fsockopen.remote_socket', array(&$this, 'fsockopen_remote_socket'));
+		$hooks->register('fsockopen.remote_host_path', array(&$this, 'fsockopen_remote_host_path'));
+		if ($this->use_authentication) {
+			$hooks->register('fsockopen.after_headers', array(&$this, 'fsockopen_header'));
+		}
+	}
+
+	/**
+	 * Set cURL parameters before the data is sent
+	 *
+	 * @since 1.6
+	 * @param resource $handle cURL resource
+	 */
+	public function curl_before_send(&$handle) {
+		curl_setopt($handle, CURLOPT_PROXYTYPE, CURLPROXY_HTTP);
+		curl_setopt($handle, CURLOPT_PROXY, $this->proxy);
+
+		if ($this->use_authentication) {
+			curl_setopt($handle, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
+			curl_setopt($handle, CURLOPT_PROXYUSERPWD, $this->get_auth_string());
+		}
+	}
+
+	/**
+	 * Alter remote socket information before opening socket connection
+	 *
+	 * @since 1.6
+	 * @param string $remote_socket Socket connection string
+	 */
+	public function fsockopen_remote_socket(&$remote_socket) {
+		$remote_socket = $this->proxy;
+	}
+
+	/**
+	 * Alter remote path before getting stream data
+	 *
+	 * @since 1.6
+	 * @param string $path Path to send in HTTP request string ("GET ...")
+	 * @param string $url Full URL we're requesting
+	 */
+	public function fsockopen_remote_host_path(&$path, $url) {
+		$path = $url;
+	}
+
+	/**
+	 * Add extra headers to the request before sending
+	 *
+	 * @since 1.6
+	 * @param string $out HTTP header string
+	 */
+	public function fsockopen_header(&$out) {
+		$out .= sprintf("Proxy-Authorization: Basic %s\r\n", base64_encode($this->get_auth_string()));
+	}
+
+	/**
+	 * Get the authentication string (user:pass)
+	 *
+	 * @since 1.6
+	 * @return string
+	 */
+	public function get_auth_string() {
+		return $this->user . ':' . $this->pass;
+	}
+}
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