if ($_SERVER['REQUEST_METHOD'] != 'GET' && $_SERVER['REQUEST_METHOD'] != 'POST') { echo 'Invalid request method.'; exit; } elseif (isset($_REQUEST['oauth_version']) && $_REQUEST['oauth_version'] != '1.0') { echo 'Invalid OAuth version.'; exit; } if (isset($_REQUEST['oauth_consumer_key'], $_REQUEST['oauth_nonce'], $_REQUEST['oauth_signature_method'], $_REQUEST['oauth_signature'], $_REQUEST['oauth_timestamp']) && $_REQUEST['oauth_signature_method'] != '') { require_once $C->INCPATH . 'classes/class_oauth.php'; $oauth_client = new OAuth($_REQUEST['oauth_consumer_key'], $_REQUEST['oauth_nonce'], $_REQUEST['oauth_signature'], $_REQUEST['oauth_timestamp']); if (isset($_REQUEST['oauth_version'])) { $oauth_client->set_variable('version', '1.0'); } if ($oauth_client->is_valid_consumer_key() && $oauth_client->is_valid_nonce() && $oauth_client->is_valid_timestamp() && strtolower(urldecode($_REQUEST['oauth_signature_method'])) == 'hmac-sha1' && $oauth_client->decrypt_hmac_sha1() && $oauth_client->is_valid_application()) { $oauth_client->set_variable('token_secret', $oauth_client->generate_random_value()); $oauth_client->set_variable('request_token', $oauth_client->generate_request_token()); if ($oauth_client->set_request_table()) { echo 'oauth_token_secret=' . $oauth_client->get_variable('token_secret'); echo '&oauth_token=' . $oauth_client->get_variable('request_token') . '&oauth_callback_confirmed=true'; } else { echo $oauth_client->get_variable('error_msg'); exit; } } else { echo $oauth_client->there_is_error() ? $oauth_client->get_variable('error_msg') : 'Invalid signature method'; exit; } } else { echo 'Missing OAuth parameter(s).'; exit; }