How to get full http URL?

[JinhaSong]

I want to create an application that filters the http url requested by another browser application using your application.
But i was only able to get a partial url via DNS log.
Ex) org.fly.android.localvpn I/System.out: DNS: -- 223.5.5.5:53:25224 play.google.com-A

How can I get the full URL requested by another browser application?

[fly-studio]

It's ask a domain with DNS, not HTTP request, This capture can sniff all HTTP/1.1 request/response.
BUT, no HTTPs
No One can sniff the HTTPs URL/Body， google used HTTPs and HTTP/2
Of course, you can use a man-in-the-middle attack:

• create a CA and trusted in your device
• build a https server in android, and it can self-sign any domain cert with the CA
• redirect the https from VPN request body to your https server
• request a https request to real remote server, eg: okhttp
• answer VPN with the okhttp's response

[mrbluecoat]

Does the https server need to be in Android or can you point to a dedicated proxy server on the network to mitm?