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// GNU GENERAL PUBLIC LICENSE Version 3, 29 June 2007
// Copyright (c) 2023 WIT.COM, Inc.
// This is a control panel for DNS
package main
import (
"fmt"
// "runtime"
"time"
"embed"
"go.wit.com/log"
"go.wit.com/gui/gui"
"go.wit.com/gui/debugger"
"go.wit.com/gui/lib/linuxstatus"
"github.com/miekg/dns"
)
//go:embed plugins/*
var resToolkit embed.FS
func main() {
// parsedown()
// initialize the maps to track IP addresses and network interfaces
me.ipmap = make(map[string]*IPtype)
me.dnsmap = make(map[string]*IPtype)
me.ifmap = make(map[int]*IFtype)
me.nsmap = make(map[string]string)
// initialize maps for the returned DNS records
me.ipv4s = make(map[string]dns.RR)
me.ipv6s = make(map[string]dns.RR)
if args.TmpLog {
// send all log() output to a file in /tmp
log.SetTmp()
}
me.myGui = gui.New()
me.myGui.InitEmbed(resToolkit)
me.myGui.Default()
log.Sleep(me.artificialSleep)
setupControlPanelWindow()
me.digStatus = NewDigStatusWindow(me.myGui)
me.statusDNS = NewHostnameStatusWindow(me.myGui)
me.statusOS = linuxstatus.New()
me.statusOS.SetParent(me.myGui)
me.statusOS.InitWindow()
me.statusOS.Make()
me.statusOS.Draw()
me.statusOS.Draw2()
if debugger.ArgDebug() {
go func() {
log.Sleep(2)
debugger.DebugWindow(me.myGui)
}()
}
log.Sleep(me.artificialSleep)
// TCP & UDP port 53 lookups + DNS over HTTP lookups + os.Exec(dig)
go myTicker(60 * time.Second, "DNSloop", func() {
me.digStatus.Update()
if me.digStatus.Ready() {
current := me.statusIPv6.Get()
if me.digStatus.IPv6() {
if current != "WORKING" {
log.Log(CHANGE, "IPv6 resolution is WORKING")
me.statusIPv6.Set("WORKING")
}
} else {
if current != "Need VPN" {
log.Log(CHANGE, "IPv6 resolution seems to have broken")
me.statusIPv6.Set("Need VPN")
}
}
}
})
// checks if your DNS records are still broken
// if everything is working, then it just ignores
// things until the timeout happens
lastProvider := "unknown"
go myTicker(10 * time.Second, "DNSloop", func() {
log.Log(INFO, "me.statusDNS.Update() START")
me.statusDNS.Update()
provider := me.statusDNS.GetDNSapi()
if provider != lastProvider {
log.Log(CHANGE, "Your DNS API provider appears to have changed to", provider)
lastProvider = provider
me.apiButton.SetText(provider + " wit.com")
}
if provider == "cloudflare" {
me.DnsAPIstatus.Set("WORKING")
}
})
// probes the OS network settings
go myTicker(500 * time.Millisecond, "me.statusOS,Update()", func() {
duration := timeFunction( func() {
me.statusOS.Update()
if me.statusOS.ValidHostname() {
if me.hostnameStatus.GetText() != "WORKING" {
me.hostnameStatus.Set("WORKING")
me.changed = true
}
}
// re-check DNS API provider
if (me.statusOS.Changed()) {
// lookup the NS records for your domain
// if your host is test.wit.com, find the NS resource records for wit.com
lookupNS(me.statusOS.GetDomainName())
log.Log(CHANGE, "lookupNS() RUNNING NOW. this will determine your DNS API provider")
}
if me.statusDNS.GetDNSapi() == "unknown" {
lookupNS(me.statusOS.GetDomainName())
log.Log(CHANGE, "lookupNS() RUNNING NOW. this will determine your DNS API provider")
}
})
s := fmt.Sprint(duration)
me.statusOS.SetSpeedActual(s)
})
// check the four known things to see if they are all WORKING
myTicker(10 * time.Second, "MAIN LOOP", func() {
var working bool = true
if me.hostnameStatus.GetText() != "WORKING" {
log.Log(CHANGE, "The hostname is not WORKING yet", me.hostnameStatus.GetText())
working = false
}
if me.statusIPv6.Get() != "WORKING" {
log.Log(CHANGE, "IPv6 DNS lookup has not been confirmed yet", me.statusIPv6.Get())
working = false
}
if me.DnsStatus.GetText() != "WORKING" {
log.Log(CHANGE, "Your IPv6 DNS settings have not been confirmed yet", me.DnsStatus.GetText())
working = false
}
if me.DnsAPIstatus.GetText() != "WORKING" {
log.Log(CHANGE, "The DNS API provider is not yet working", me.DnsAPIstatus.GetText())
working = false
}
if working {
log.Log(CHANGE, "EVERYTHING IS WORKING. YOU HAVE IPv6 BLISS. TODO: don't check so often now")
} else {
log.Log(CHANGE, "EVERYTHING IS NOT WORKING. scanning errors:")
me.problems.Scan()
}
})
}
/*
// Example usage
duration := timeFunction(FunctionToTime)
log.Println("Execution Time: ", duration)
*/
// timeFunction takes a function as an argument and returns the execution time.
func timeFunction(f func()) time.Duration {
startTime := time.Now() // Record the start time
f() // Execute the function
return time.Since(startTime) // Calculate the elapsed time
}
func timeStamp() string {
stamp := time.Now().Format("2006/01/02 15:04:05")
log.Log(CHANGE, "Network things changed on", stamp)
return stamp
}
func myTicker(t time.Duration, name string, f func()) {
ticker := time.NewTicker(t)
defer ticker.Stop()
done := make(chan bool)
/*
go func() {
time.Sleep(10 * time.Second)
done <- true
}()
*/
for {
select {
case <-done:
fmt.Println("Done!")
return
case t := <-ticker.C:
log.Log(INFO, name, "Current time: ", t)
f()
}
}
}
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