// Project: DNS Lookup 
// Created: 2021-07-16
// By: Virtual Nomad
// show all errors
SetErrorMode(2)

// set window properties
SetWindowTitle( "DNS Lookup" )
SetWindowSize( 1280,720, 0 )
SetWindowAllowResize( 1 )

// set display properties
SetVirtualResolution( 1280,720)
SetOrientationAllowed( 1, 1, 1, 1 )
SetSyncRate( 30, 0 ) 
SetScissor( 0,0,0,0 )
UseNewDefaultFonts( 1 ) 

Type VAR
	Label as String
	Value as String
EndType

GLOBAL IP as String []
GLOBAL Status as Integer

URL$ = "appgamekit.com"
Lookup(URL$)

do

    If GetRawKeyState(27) then End
    If Status = 0
		Print(URL$)   
		For x = 0 to IP.Length
			Print(IP[x])
		Next x
	Else
		Print(URL$ + " UnResolved")
	Endif

    Sync()
loop

Function Lookup(URL$)
	http = CreateHTTPConnection()
	SetHTTPHost( http, "dns.google", 1 )
	SendHTTPRequestASync( http, "/resolve?name="+URL$+"&type=A")

	while GetHTTPResponseReady(http) = 0
		Print( "Connecting..." )
		Sync()
	endwhile
	
	Strip(GetHTTPResponse(http))
	
	CloseHTTPConnection(http)
	DeleteHTTPConnection(http)
	
EndFunction

Function Strip(This$)
	Vars$ as VAR []
	Delims$ = "[]{}" + CHR(34)
	New$ = StripString(This$,Delims$)
	total = CountStringTokens(New$, ",")
	
	If total > 0
		for x = 1 to total
			This$ = GetStringToken(New$,",",x)
				That as VAR
				That.Label = GetStringToken(This$,":",1)
				That.Value = GetStringToken(This$,":",2)
			Vars$.Insert(That)
		next x
	Endif
	
	Vars$.Sort()
	Status = Vars$.Find("Status")

	Status = VAL( Vars$[Status].Value )
	If Status = 0
		for x = 0 to Vars$.Length
			If Vars$[x].Label = "data" then IP.Insert(Vars$[x].Value)
		Next x
	Endif
		
EndFunction