tasplanning_report/public/oauth_callback.php

<?php
require __DIR__ . '/vendor/autoload.php';

use Google\Client;

$client = new Client();
$client->setAuthConfig('/var/www/secure/oauth-client.json');
$client->setRedirectUri('https://llm.modulos.com.au/oauth_callback.php');
$client->setScopes([
  Google\Service\Drive::DRIVE,
  Google\Service\Docs::DOCUMENTS
]);

if (!isset($_GET['code'])) {
  http_response_code(400);
  echo 'Missing ?code';
  exit;
}

$token = $client->fetchAccessTokenWithAuthCode($_GET['code']);
if (isset($token['error'])) {
  http_response_code(500);
  echo 'OAuth error: ' . htmlspecialchars(json_encode($token));
  exit;
}

file_put_contents(__DIR__ . '/cache/gdocs_token.json', json_encode($token, JSON_PRETTY_PRINT));
echo '<h3>Connected ✅</h3><p>You can close this tab and try “Create Google Doc” again.</p>';