/**
* Discover and cache OpenID services for a user's delegate OpenID.
*
* @param int $userid user ID
* @url string URL to discover. If not provided, user's current delegate will be used
* @return bool true if successful
*/
function openid_server_update_delegation_info($userid, $url = null)
{
if (empty($url)) {
$url = get_usermeta($userid, 'openid_delegate');
}
if (empty($url)) {
return false;
}
$fetcher = Auth_Yadis_Yadis::getHTTPFetcher();
$discoveryResult = Auth_Yadis_Yadis::discover($url, $fetcher);
$endpoints = Auth_OpenID_ServiceEndpoint::fromDiscoveryResult($discoveryResult);
$services = array();
if (!empty($endpoints)) {
foreach ($endpoints as $endpoint) {
$service = array('Type' => array(), 'URI' => $endpoint->server_url);
foreach ($endpoint->type_uris as $type) {
$service['Type'][] = array('content' => $type);
if ($type == Auth_OpenID_TYPE_2_0_IDP) {
$service['LocalID'] = Auth_OpenID_IDENTIFIER_SELECT;
} else {
if ($type == Auth_OpenID_TYPE_2_0) {
$service['LocalID'] = $endpoint->local_id;
} else {
if (in_array($type, array(Auth_OpenID_TYPE_1_0, Auth_OpenID_TYPE_1_1, Auth_OpenID_TYPE_1_2))) {
$service['openid:Delegate'] = $endpoint->local_id;
}
}
}
}
$services[] = $service;
}
}
if (empty($services)) {
// resort to checking for HTML links
$response = $fetcher->get($url);
$html_content = $response->body;
$p = new Auth_OpenID_Parse();
$link_attrs = $p->parseLinkAttrs($html_content);
// check HTML for OpenID2
$server_url = $p->findFirstHref($link_attrs, 'openid2.provider');
if ($server_url !== null) {
$openid_url = $p->findFirstHref($link_attrs, 'openid2.local_id');
if ($openid_url == null) {
$openid_url = $url;
}
$services[] = array('Type' => array(array('content' => Auth_OpenID_Type_1_1)), 'URI' => $server_url, 'LocalID' => $openid_url);
}
// check HTML for OpenID1
$server_url = $p->findFirstHref($link_attrs, 'openid.server');
if ($server_url !== null) {
$openid_url = $p->findFirstHref($link_attrs, 'openid.delegate');
if ($openid_url == null) {
$openid_url = $url;
}
$services[] = array('Type' => array(array('content' => Auth_OpenID_Type_2_0)), 'URI' => $server_url, 'openid:Delegate' => $openid_url);
}
}
if (empty($services)) {
return false;
}
update_usermeta($userid, 'openid_delegate', $url);
update_usermeta($userid, 'openid_delegate_services', $services);
return true;
}
function Auth_OpenID_legacy_discover($html_text, $server_rel, $delegate_rel)
{
$p = new Auth_OpenID_Parse();
$link_attrs = $p->parseLinkAttrs($html_text);
$server_url = $p->findFirstHref($link_attrs, $server_rel);
if ($server_url === null) {
return false;
} else {
$delegate_url = $p->findFirstHref($link_attrs, $delegate_rel);
return array($delegate_url, $server_url);
}
}
