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<?php
require_once 'Auth/OpenID/SReg.php';
add_filter('openid_server_xrds_types', 'openid_server_sreg_xrds_types');
add_action('openid_server_post_auth', 'openid_server_sreg_post_auth');
function openid_server_sreg_xrds_types($types) {
$types[] = 'http://openid.net/extensions/sreg/1.1';
$types[] = 'http://openid.net/sreg/1.0';
return $types;
}
/**
* See if the OpenID authentication request includes SReg and add additional hooks if so.
*/
function openid_server_sreg_post_auth($request) {
$sreg_request = Auth_OpenID_SRegRequest::fromOpenIDRequest($request);
if ($sreg_request) {
$GLOBALS['openid_server_sreg_request'] = $sreg_request;
add_action('openid_server_trust_form', 'openid_server_attributes_trust_form');
add_filter('openid_server_trust_form_attributes', 'openid_server_sreg_trust_form');
add_action('openid_server_trust_submit', 'openid_server_sreg_trust_submit', 10, 2);
add_filter('openid_server_store_trusted_site', 'openid_server_sreg_store_trusted_site');
add_action('openid_server_auth_response', 'openid_server_sreg_auth_response' );
}
}
/**
* Add SReg input fields to the OpenID Trust Form
*/
function openid_server_sreg_trust_form( $attributes ) {
$sreg_request = $GLOBALS['openid_server_sreg_request'];
$sreg_fields = $sreg_request->allRequestedFields();
if (!empty($sreg_fields)) {
foreach ($sreg_fields as $field) {
$value = openid_server_sreg_from_profile($field);
if (!empty($value)) {
$attributes[] = strtolower($GLOBALS['Auth_OpenID_sreg_data_fields'][$field]);
}
}
}
return $attributes;
}
/**
* Add attribute input fields to the OpenID Trust Form
*/
function openid_server_attributes_trust_form() {
$attributes = apply_filters('openid_server_trust_form_attributes', array());
if (!empty($attributes)) {
$attr_string = openid_server_attributes_string($attributes);
echo '
<p class="trust_form_add" style="padding: 0">
<input type="checkbox" id="include_sreg" name="include_sreg" checked="checked" style="display: block; float: left; margin: 0.8em;" />
<label for="include_sreg" style="display: block; padding: 0.5em 2em;">'.sprintf(__('Also grant access to see my %s.', 'openid'), $attr_string) . '</label>
</p>';
}
}
/**
* Convert list of attribute names to human readable string.
*/
function openid_server_attributes_string($fields, $string = '') {
if (empty($fields)) return $string;
if (empty($string)) {
if (sizeof($fields) == 2)
return join(' and ', $fields);
$string = array_shift($fields);
} else if (sizeof($fields) == 1) {
$string .= ', and ' . array_shift($fields);
} else if (sizeof($fields) > 1) {
$string .= ', ' . array_shift($fields);
}
return openid_server_attributes_string($fields, $string);
}
/**
* Based on input from the OpenID trust form, prep data to be included in the authentication response
*/
function openid_server_sreg_trust_submit($trust, $request) {
if ($trust && $_REQUEST['include_sreg'] == 'on') {
$GLOBALS['openid_server_sreg_trust'] = true;
} else {
$GLOBALS['openid_server_sreg_trust'] = false;
}
}
/**
* Store user's decision on whether to release attributes to the site.
*/
function openid_server_sreg_store_trusted_site($site) {
$site['release_attributes'] = $GLOBALS['openid_server_sreg_trust'];
return $site;
}
/**
* Attach SReg response to authentication response.
*/
function openid_server_sreg_auth_response($response) {
$user = wp_get_current_user();
// should we include SREG in the response?
$include_sreg = false;
if (isset($GLOBALS['openid_server_sreg_trust'])) {
$include_sreg = $GLOBALS['openid_server_sreg_trust'];
} else {
$trusted_sites = get_user_meta($user->ID, 'openid_trusted_sites', true);
$request = $response->request;
$site_hash = md5($request->trust_root);
if (is_array($trusted_sites) && array_key_exists($site_hash, $trusted_sites)) {
$include_sreg = $trusted_sites[$site_hash]['release_attributes'];
}
}
if ($include_sreg) {
$sreg_data = array();
foreach ($GLOBALS['Auth_OpenID_sreg_data_fields'] as $field => $name) {
$value = openid_server_sreg_from_profile($field);
if (!empty($value)) {
$sreg_data[$field] = $value;
}
}
$sreg_response = Auth_OpenID_SRegResponse::extractResponse($GLOBALS['openid_server_sreg_request'], $sreg_data);
if (!empty($sreg_response)) $response->addExtension($sreg_response);
}
return $response;
}
/**
* Try to pre-populate SReg data from user's profile. The following fields
* are not handled by the plugin: dob, gender, postcode, country, and language.
* Other plugins may provide this data by implementing the filter
* openid_server_sreg_${fieldname}.
*
* @uses apply_filters() Calls 'openid_server_sreg_*' before returning sreg values,
* where '*' is the name of the sreg attribute.
*/
function openid_server_sreg_from_profile($field) {
$user = wp_get_current_user();
$value = '';
switch($field) {
case 'nickname':
$value = get_user_meta($user->ID, 'nickname', true);
break;
case 'email':
$value = $user->user_email;
break;
case 'fullname':
$value = get_user_meta($user->ID, 'display_name', true);
break;
}
$value = apply_filters('openid_server_sreg_' . $field, $value, $user->ID);
return $value;
}
?>
|
GitWeb