Wordpress 4.6

[autoinstalls/wordpress.git] / wp-includes / Requests / Proxy / HTTP.php

diff --git a/wp-includes/Requests/Proxy/HTTP.php b/wp-includes/Requests/Proxy/HTTP.php
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+++ b/wp-includes/Requests/Proxy/HTTP.php
@@ -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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