mail_oauth.php

См. документацию.

<?php
 
use Bitrix\Mail;
use Bitrix\Mail\Helper\OAuth;
use Bitrix\Main\Loader;
 
define('NOT_CHECK_PERMISSIONS', true);
 
require_once($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/prolog_before.php');
 
if (Loader::includeModule('mail'))
{
 
    parse_str($_REQUEST['state'], $state);
 
    if ($helper = Mail\Helper\OAuth::getInstance($state['service']))
    {
        if (isset($_SESSION["MOBILE_OAUTH"]) && $_SESSION["MOBILE_OAUTH"])
        {
            $helper->handleResponse($state, OAuth::MOBILE_TYPE);
        }
        else
        {
            $helper->handleResponse($state);
        }
    }
}
 
require_once($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/epilog_after.php');