1d4f1f6bf6
Added some of the standard directories darcs-hash:20080506151729-84dde-563da8505e06a7302041c93ab157ced31165876c.gz
147 lines
3.7 KiB
PHP
147 lines
3.7 KiB
PHP
<?php
|
|
|
|
/**
|
|
* This module contains the HTTP fetcher interface
|
|
*
|
|
* PHP versions 4 and 5
|
|
*
|
|
* LICENSE: See the COPYING file included in this distribution.
|
|
*
|
|
* @package OpenID
|
|
* @author JanRain, Inc. <openid@janrain.com>
|
|
* @copyright 2005-2008 Janrain, Inc.
|
|
* @license http://www.apache.org/licenses/LICENSE-2.0 Apache
|
|
*/
|
|
|
|
/**
|
|
* Require logging functionality
|
|
*/
|
|
require_once "Auth/OpenID.php";
|
|
|
|
define('Auth_OpenID_FETCHER_MAX_RESPONSE_KB', 1024);
|
|
define('Auth_OpenID_USER_AGENT',
|
|
'php-openid/'.Auth_OpenID_VERSION.' (php/'.phpversion().')');
|
|
|
|
class Auth_Yadis_HTTPResponse {
|
|
function Auth_Yadis_HTTPResponse($final_url = null, $status = null,
|
|
$headers = null, $body = null)
|
|
{
|
|
$this->final_url = $final_url;
|
|
$this->status = $status;
|
|
$this->headers = $headers;
|
|
$this->body = $body;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* This class is the interface for HTTP fetchers the Yadis library
|
|
* uses. This interface is only important if you need to write a new
|
|
* fetcher for some reason.
|
|
*
|
|
* @access private
|
|
* @package OpenID
|
|
*/
|
|
class Auth_Yadis_HTTPFetcher {
|
|
|
|
var $timeout = 20; // timeout in seconds.
|
|
|
|
/**
|
|
* Return whether a URL can be fetched. Returns false if the URL
|
|
* scheme is not allowed or is not supported by this fetcher
|
|
* implementation; returns true otherwise.
|
|
*
|
|
* @return bool
|
|
*/
|
|
function canFetchURL($url)
|
|
{
|
|
if ($this->isHTTPS($url) && !$this->supportsSSL()) {
|
|
Auth_OpenID::log("HTTPS URL unsupported fetching %s",
|
|
$url);
|
|
return false;
|
|
}
|
|
|
|
if (!$this->allowedURL($url)) {
|
|
Auth_OpenID::log("URL fetching not allowed for '%s'",
|
|
$url);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Return whether a URL should be allowed. Override this method to
|
|
* conform to your local policy.
|
|
*
|
|
* By default, will attempt to fetch any http or https URL.
|
|
*/
|
|
function allowedURL($url)
|
|
{
|
|
return $this->URLHasAllowedScheme($url);
|
|
}
|
|
|
|
/**
|
|
* Does this fetcher implementation (and runtime) support fetching
|
|
* HTTPS URLs? May inspect the runtime environment.
|
|
*
|
|
* @return bool $support True if this fetcher supports HTTPS
|
|
* fetching; false if not.
|
|
*/
|
|
function supportsSSL()
|
|
{
|
|
trigger_error("not implemented", E_USER_ERROR);
|
|
}
|
|
|
|
/**
|
|
* Is this an https URL?
|
|
*
|
|
* @access private
|
|
*/
|
|
function isHTTPS($url)
|
|
{
|
|
return (bool)preg_match('/^https:\/\//i', $url);
|
|
}
|
|
|
|
/**
|
|
* Is this an http or https URL?
|
|
*
|
|
* @access private
|
|
*/
|
|
function URLHasAllowedScheme($url)
|
|
{
|
|
return (bool)preg_match('/^https?:\/\//i', $url);
|
|
}
|
|
|
|
/**
|
|
* @access private
|
|
*/
|
|
function _findRedirect($headers)
|
|
{
|
|
foreach ($headers as $line) {
|
|
if (strpos(strtolower($line), "location: ") === 0) {
|
|
$parts = explode(" ", $line, 2);
|
|
return $parts[1];
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
/**
|
|
* Fetches the specified URL using optional extra headers and
|
|
* returns the server's response.
|
|
*
|
|
* @param string $url The URL to be fetched.
|
|
* @param array $extra_headers An array of header strings
|
|
* (e.g. "Accept: text/html").
|
|
* @return mixed $result An array of ($code, $url, $headers,
|
|
* $body) if the URL could be fetched; null if the URL does not
|
|
* pass the URLHasAllowedScheme check or if the server's response
|
|
* is malformed.
|
|
*/
|
|
function get($url, $headers)
|
|
{
|
|
trigger_error("not implemented", E_USER_ERROR);
|
|
}
|
|
}
|
|
|
|
?>
|