Webhook 处理

Create custom webhook endpoints to receive events from external services and sync data with Ultimate Multisite.

自定义 Webhook 端点

// Register webhook endpoint
add_action('rest_api_init', function() {
    register_rest_route('my-addon/v1', '/webhook', [
        'methods' => 'POST',
        'callback' => 'handle_my_webhook',
        'permission_callback' => 'verify_webhook_signature'
    ]);
});

function handle_my_webhook($request) {
    $payload = $request->get_json_params();

    switch ($payload['event_type']) {
        case 'customer.updated':
            $customer = wu_get_customer($payload['customer_id']);
            if ($customer) {
                $customer->set_vip($payload['data']['is_vip']);
                $customer->save();
            }
            break;

        case 'subscription.cancelled':
            $membership = wu_get_membership_by_hash($payload['subscription_id']);
            if ($membership) {
                $membership->cancel();
            }
            break;
    }

    return ['status' => 'processed'];
}

function verify_webhook_signature($request) {
    $signature = $request->get_header('X-Webhook-Signature');
    $payload = $request->get_body();
    $secret = get_option('my_webhook_secret');

    return hash_hmac('sha256', $payload, $secret) === $signature;
}

安全注意事项

• 始终使用 HMAC 或共享密钥验证 webhook 签名
• 在 REST 路由上使用 permission_callback — 在生产环境中永远不要将其设置为 __return_true
• 在执行操作之前验证并清理所有传入的负载数据
• 返回适当的 HTTP 状态码（成功为 200，错误请求为 400）