ngrok - Introspected tunnels to localhost (homepage)

"I want to securely expose a web server to the internet and capture all traffic for detailed inspection and replay"

对原版的改进

1. 增加授权(auth_token)的检查
2. 强制子域名绑定
3. 将统计数据存储
4. 支持转发到监听端口的请求(例如监听9080,然后nginx将80端口的请求转发过来)

均依赖本地的redis实例

TODO

1. HTTP API
2. CNAME 支持

Redis数据定义

hset ngrok $auth_token $subdomain

zset ngrok:report $now $report