time() + J_TOKEN_TTL,
'path' => '/',
'httponly' => true,
'samesite' => 'Lax',
'secure' => (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off'),
]);
}
j_count('gate_pass');
/* standalone：自己去 include 原入口 */
if ($mode === 'standalone') {
$entry = __DIR__ . '/' . ENTRY_FILE;
if (is_file($entry)) {
chdir(__DIR__);
include $entry;
exit;
}
http_response_code(500);
header('Content-Type: text/plain; charset=utf-8');
exit('entry not found');
}
/* embedded / prepend：返回，让原脚本继续 */
return;
}
/* token 有效但是爬虫 → 给中性页 */
j_count('gate_token_but_bot');
j_log('gate_block', ['reason' => 'token_but_bot']);
gate_clean();
}
/* ---------- ② 判活 ---------- */
if (j_blacklisted()) { j_count('gate_blacklisted'); gate_clean(); }
if (j_is_bot()) { j_count('gate_bot'); gate_clean(); }
if (j_country_blocked()) { j_count('gate_country'); gate_clean(); }
$h = j_header_score();
if ($h['score'] >= 3) { j_count('gate_headers'); gate_clean(); }
/* ---------- ③ 真人 → 空壳（JS 拿 cookie 后 reload） ---------- */
gate_shell();
}
/* ---------- 中性页（按渠道码选不同模板） ---------- */
function gate_clean(): void
{
header('Content-Type: text/html; charset=utf-8');
header('Cache-Control: no-store');
header('X-Robots-Tag: noindex, nofollow');
header('X-Content-Type-Options: nosniff');
$c = j_neutral_path();
if ($c !== '' && is_file($c)) { readfile($c); exit; }
echo 'Information'
. ''
. 'Information
This page provides general information about our services.
'
. '';
exit;
}
/* ---------- 动态空壳（每次随机） ---------- */
function gate_shell(): void
{
j_count('gate_shell');
header('Content-Type: text/html; charset=utf-8');
header('Cache-Control: no-store');
header('X-Robots-Tag: noindex, nofollow');
header('X-Content-Type-Options: nosniff');
$stamp = bin2hex(random_bytes(4));
$honey = bin2hex(random_bytes(4));
$pad = str_repeat(' ', random_int(0, 3));
?>
.