[Feature Request] <title>希望支持sniproxy功能

[gptq]

Greetings

希望可以配置为白名单模式，即只允许配置文件allow_sni里的域名或IP可以通过，其它的全拒了。

Feature Request

sniproxy

Use Cases

sniproxy

Potential Benefits

网关功能

[dae-prow]

Thanks for opening this issue!