/**
* Appends an OpenID url to a user's account
*
* @param object $user
* @param string $openid_url
* @return boolean
*/
function openid_append_url($user, $openid_url)
{
$config = get_config('auth/openid');
$allow_append = $config->auth_openid_allow_muliple == 'true';
$user = get_complete_user_data('id', $user->id);
if (empty($user)) {
logout_tmpuser_error(get_string('auth_openid_not_logged_in', 'auth_openid'));
return false;
}
if (count_records('openid_urls', 'userid', $user->id) > 0 && !$allow_append) {
logout_tmpuser_error(get_string('auth_openid_no_multiple', 'auth_openid'));
return false;
}
if (openid_already_exists($openid_url)) {
logout_tmpuser_error(get_string('auth_openid_url_exists', 'auth_openid', $openid_url));
return false;
}
if ($user->auth == 'openid') {
$record = new object();
$record->userid = $user->id;
$record->url = $openid_url;
if (insert_record('openid_urls', $record) !== false) {
return true;
}
}
return false;
}
/**
* Checks if openid url already exists, outputs error;
* Attempts to change user account to openid, outputs error on failure.
* If global $openid_tmp_login is set logs out current temporary user.
* Called from actions.php
*
* @param user object $user - the [potential] user to change to OpenID
* @param string $url - the unique OpenID URL
*/
function openid_if_unique_change_account($user, $url)
{
global $openid_tmp_login;
if (openid_already_exists($url)) {
logout_tmpuser_error(get_string('auth_openid_url_exists', 'auth_openid', $url));
} else {
if (!openid_change_user_account($user, $url, $openid_tmp_login)) {
logout_tmpuser_error(get_string('auth_openid_login_error', 'auth_openid'));
}
}
}
$resp = $authplugin->process_response($_GET, true);
if ($resp !== false) {
$url = $resp->identity_url;
$file = 'confirm_append.html';
}
} elseif ($confirm) {
if (!confirm_sesskey()) {
logout_tmpuser_error(get_string('auth_openid_bad_session_key', 'auth_openid'), true);
} else {
openid_append_url($USER, $url);
}
} elseif ($cancel) {
logout_tmpuser_error(get_string('action_cancelled', 'auth_openid'));
} elseif ($url != null) {
if (openid_already_exists($url)) {
logout_tmpuser_error(get_string('auth_openid_url_exists', 'auth_openid', $url));
} else {
$params['openid_action'] = 'append';
$authplugin->do_request($reqinfo, $CFG->wwwroot . '/auth/openid/actions.php', $params);
}
}
break;
// Delete OpenIDs from an account
// Delete OpenIDs from an account
case 'delete':
// Check if any urls selected for delete
if (sizeof($delete_urls) < 1) {
print_error('no_urls_selected', 'auth_openid');
}
// Prevent users from deleting all their OpenIDs!
if (sizeof($delete_urls) >= count_records('openid_urls', 'userid', $USER->id)) {
