/**
* Create a SharePoint Access Token (App-only Policy)
*
* @param SPSite $site SharePoint Site
* @param array $extra Extra payload values to map
* @throws SPBadMethodCallException|SPInvalidArgumentException
* @return SPAccessToken
*/
public static function createAppOnlyPolicy(SPSite $site, array $extra = [])
{
$config = $site->getConfig();
if (empty($config['secret'])) {
throw new SPBadMethodCallException('The Secret is empty/not set');
}
if (empty($config['acs'])) {
throw new SPBadMethodCallException('The Azure Access Control Service URL is empty/not set');
}
if (!filter_var($config['acs'], FILTER_VALIDATE_URL)) {
throw new SPInvalidArgumentException('The Azure Access Control Service URL is invalid');
}
if (empty($config['client_id'])) {
throw new SPBadMethodCallException('The Client ID is empty/not set');
}
if (empty($config['resource'])) {
throw new SPBadMethodCallException('The Resource is empty/not set');
}
$json = $site->request($config['acs'], ['headers' => ['Content-Type' => 'application/x-www-form-urlencoded'], 'body' => http_build_query(['grant_type' => 'client_credentials', 'client_id' => $config['client_id'], 'client_secret' => $config['secret'], 'resource' => $config['resource']])], 'POST');
return new static($json, $extra);
}
