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<?php
require_once "config.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()
{
$url = htmlspecialchars(dirname(buildURL()) . '/default.css', ENT_QUOTES);
return sprintf('<link rel="stylesheet" type="text/css" href="%s" />', $url);
}
/**
* Build a URL to a server action
*/
function buildURL($action=null, $escaped=true)
{
// from config.php
global $server_url;
$url = $server_url;
if ($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');
print $body;
}
/**
* Instantiate a new OpenID server object
*/
function getServer()
{
// from config.php
global $server_url;
static $server = null;
if (!isset($server)) {
$server = new Auth_OpenID_Server($server_url, getOpenIDStore());
}
return $server;
}
/**
* Return whether the trust root is currently trusted
*/
function isTrusted($identity_url, $trust_root)
{
// from config.php
global $trusted_sites;
if (in_array($trust_root, $trusted_sites)) {
return true;
}
$sites = getSessionSites();
return isset($sites[$trust_root]) && $sites[$trust_root];
}
/**
* Return a hashed form of the user's password
*/
function hashPassword($password)
{
return bin2hex(Auth_OpenID_SHA1($password));
}
/**
* Check the user's login information
*/
function checkLogin($openid_url, $password)
{
// from config.php
global $openid_users;
$hash = hashPassword($password);
return isset($openid_users[$openid_url])
&& $hash == $openid_users[$openid_url];
}
/**
* 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'] = $identity_url;
}
}
function setSessionSites($sites=null)
{
if (!isset($sites)) {
unset($_SESSION['session_sites']);
} else {
$_SESSION['session_sites'] = serialize($sites);
}
}
function getSessionSites()
{
return isset($_SESSION['session_sites'])
? unserialize($_SESSION['session_sites'])
: false;
}
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);
}
}
?>
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