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