function getAppSecurityToken($siteid = null, $ip = null)
{
$body = WindowsLiveLogin::fetch(WindowsLiveLogin::getAppLoginUrl($siteid, $ip));
if (!$body) {
WindowsLiveLogin::debug("Error: getAppSecurityToken: Could not fetch the application security token.");
return;
}
preg_match('/\\{"token":"(.*)"\\}/', $body, $matches);
if (count($matches) == 2) {
return $matches[1];
} else {
WindowsLiveLogin::debug("Error: getAppSecurityToken: Failed to extract token: {$body}");
return;
}
}