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- <?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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