Complete request infomation

Can provide a feature to render a complete request information?
I would like to check the complete request information, includes `URL`, `URL params`, `Method` and `Request Header`.
As follow:
```
GET /index.html?code=1 HTTP/1.1

Accept:text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
Accept-Encoding:gzip, deflate, sdch
Accept-Language:en-US,en;q=0.8,zh-CN;q=0.6,zh;q=0.4
Cache-Control:max-age=0
Connection:keep-alive
DNT:1
Host:xxxx
Upgrade-Insecure-Requests:1
User-Agent:Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36
```

The issue names no files, tests, or entry points. Start by locating the CLI's existing HTTP request inspection and rendering path, then verify how URL parameters, methods, and headers are currently represented; done means the interface displays the complete request information shown in the example.

Written by the indexing model from the issue text.