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<?php
/**
* This is the PHP OpenID library by JanRain, Inc.
*
* This module contains core utility functionality used by the
* library. See Consumer.php and Server.php for the consumer and
* server implementations.
*
* PHP versions 4 and 5
*
* LICENSE: See the COPYING file included in this distribution.
*
* @package OpenID
* @author JanRain, Inc. <openid@janrain.com>
* @copyright 2005 Janrain, Inc.
* @license http://www.gnu.org/copyleft/lesser.html LGPL
*/
/**
* Require the fetcher code.
*/
require_once "Auth/OpenID/PlainHTTPFetcher.php";
require_once "Auth/OpenID/ParanoidHTTPFetcher.php";
/**
* Status code returned by the server when the only option is to show
* an error page, since we do not have enough information to redirect
* back to the consumer. The associated value is an error message that
* should be displayed on an HTML error page.
*
* @see Auth_OpenID_Server
*/
define('Auth_OpenID_LOCAL_ERROR', 'local_error');
/**
* Status code returned when there is an error to return in key-value
* form to the consumer. The caller should return a 400 Bad Request
* response with content-type text/plain and the value as the body.
*
* @see Auth_OpenID_Server
*/
define('Auth_OpenID_REMOTE_ERROR', 'remote_error');
/**
* Status code returned when there is a key-value form OK response to
* the consumer. The value associated with this code is the
* response. The caller should return a 200 OK response with
* content-type text/plain and the value as the body.
*
* @see Auth_OpenID_Server
*/
define('Auth_OpenID_REMOTE_OK', 'remote_ok');
/**
* Status code returned when there is a redirect back to the
* consumer. The value is the URL to redirect back to. The caller
* should return a 302 Found redirect with a Location: header
* containing the URL.
*
* @see Auth_OpenID_Server
*/
define('Auth_OpenID_REDIRECT', 'redirect');
/**
* Status code returned when the caller needs to authenticate the
* user. The associated value is a Auth_OpenID_ServerRequest
* object that can be used to complete the authentication. If the user
* has taken some authentication action, use the retry() method of the
* Auth_OpenID_ServerRequest object to complete the request.
*
* @see Auth_OpenID_Server
*/
define('Auth_OpenID_DO_AUTH', 'do_auth');
/**
* Status code returned when there were no OpenID arguments
* passed. This code indicates that the caller should return a 200 OK
* response and display an HTML page that says that this is an OpenID
* server endpoint.
*
* @see Auth_OpenID_Server
*/
define('Auth_OpenID_DO_ABOUT', 'do_about');
class Auth_OpenID {
/**
* Factory function that will return an instance of the
* appropriate HTTP fetcher
*/
function getHTTPFetcher()
{
if (defined('Auth_OpenID_CURL_PRESENT') &&
Auth_OpenID_CURL_PRESENT) {
$fetcher = new Auth_OpenID_ParanoidHTTPFetcher();
} else {
$fetcher = new Auth_OpenID_PlainHTTPFetcher();
}
return $fetcher;
}
/**
* Rename query arguments back to 'openid.' from 'openid_'
*
* @access private
* @param array $args An associative array of URL query arguments
*/
function fixArgs($args)
{
foreach (array_keys($args) as $key) {
$fixed = preg_replace('/^openid_/', 'openid.', $key);
if ($fixed != $key) {
$val = $args[$key];
unset($args[$key]);
$args[$fixed] = $val;
}
}
return $args;
}
/**
* Create dir_name as a directory if it does not exist. If it
* exists, make sure that it is, in fact, a directory. Returns
* true if the operation succeeded; false if not.
*
* @access private
*/
function ensureDir($dir_name)
{
if (is_dir($dir_name) || @mkdir($dir_name)) {
return true;
} else {
if (Auth_OpenID::ensureDir(dirname($dir_name))) {
return is_dir($dir_name) || @mkdir($dir_name);
} else {
return false;
}
}
}
}
?>
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