<?php
require_once "config.php";
require_once "lib/render.php";
require_once "Auth/OpenID/Server.php";
/**
* Set up the session
*/
function init()
{
session_name('openid_server');
session_start();
}
/**
* Get the style markup
*/
function getStyle()
{
$parent = rtrim(dirname(getServerURL()), '/');
$url = htmlspecialchars($parent . '/openid-server.css', ENT_QUOTES);
return sprintf('<link rel="stylesheet" type="text/css" href="%s" />', $url);
}
/**
* Get the URL of the current script
*/
function getServerURL()
{
$path = $_SERVER['SCRIPT_NAME'];
$host = $_SERVER['HTTP_HOST'];
$port = $_SERVER['SERVER_PORT'];
$s = isset($_SERVER['HTTPS']) && $_SERVER['HTTPS'] ? 's' : '';
if (($s && $port == "443") || (!$s && $port == "80")) {
$p = '';
} else {
$p = ':' . $port;
}
return "http$s://$host$p$path";
}
/**
* Build a URL to a server action
*/
function buildURL($action=null, $escaped=true)
{
$url = getServerURL();
if ($action) {
$url .= '/' . $action;
}
return $escaped ? htmlspecialchars($url, ENT_QUOTES) : $url;
}
/**
* Extract the current action from the request
*/
function getAction()
{
$path_info = @$_SERVER['PATH_INFO'];
$action = ($path_info) ? substr($path_info, 1) : '';
$function_name = 'action_' . $action;
return $function_name;
}
/**
* Write the response to the request
*/
function writeResponse($resp)
{
list ($headers, $body) = $resp;
array_walk($headers, 'header');
header(header_connection_close);
print $body;
}
/**
* Instantiate a new OpenID server object
*/
function getServer()
{
static $server = null;
if (!isset($server)) {
$server = new Auth_OpenID_Server(getOpenIDStore(),
buildURL());
}
return $server;
}
/**
* Return a hashed form of the user's password
*/
function hashPassword($password)
{
return bin2hex(Auth_OpenID_SHA1($password));
}
/**
* Get the openid_url out of the cookie
*
* @return mixed $openid_url The URL that was stored in the cookie or
* false if there is none present or if the cookie is bad.
*/
function getLoggedInUser()
{
return isset($_SESSION['openid_url'])
? $_SESSION['openid_url']
: false;
}
/**
* Set the openid_url in the cookie
*
* @param mixed $identity_url The URL to set. If set to null, the
* value will be unset.
*/
function setLoggedInUser($identity_url=null)
{
if (!isset($identity_url)) {
unset($_SESSION['openid_url']);
} else {
$_SESSION['openid_url'] = $identity_url;
}
}
function getRequestInfo()
{
return isset($_SESSION['request'])
? unserialize($_SESSION['request'])
: false;
}
function setRequestInfo($info=null)
{
if (!isset($info)) {
unset($_SESSION['request']);
} else {
$_SESSION['request'] = serialize($info);
}
}
function getSreg($identity)
{
// from config.php
global $openid_sreg;
if (!is_array($openid_sreg)) {
return null;
}
return $openid_sreg[$identity];
}
function idURL($identity)
{
return buildURL('idpage') . "?user=" . $identity;
}
function idFromURL($url)
{
if (strpos($url, 'idpage') === false) {
return null;
}
$parsed = parse_url($url);
$q = $parsed['query'];
$parts = array();
parse_str($q, $parts);
return @$parts['user'];
}
?>
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