logic for comparing OS and DNS IPv6 addresses

Signed-off-by: Jeff Carr <jcarr@wit.com>

hostnameStatus.go

@@ -22,6 +22,7 @@ import (
 type hostnameStatus struct {
 	ready		bool
 	hidden		bool
+	changed		bool
 
 	lastname	string // used to watch for changes in the hostname
 
@@ -268,36 +269,29 @@ func (hs *hostnameStatus) updateStatus() {
 	}
 	hs.domainname.Set(me.statusOS.GetDomainName())
 
-	tmp := me.statusOS.GetIPv4()
+	var tmp []string
+	tmp = me.statusOS.GetIPv4()
 	sort.Strings(tmp)
-	hs.currentIPv4.Set(strings.Join(tmp, "\n"))
+	s = strings.Join(tmp, "\n")
+	if s != hs.currentIPv4.Get() {
+		log.Log(CHANGE, "DNS IPv4 Addresses changed", tmp)
+		hs.currentIPv4.Set(s)
+		hs.changed = true
+	}
 
 	tmp = me.statusOS.GetIPv6()
 	sort.Strings(tmp)
-	hs.currentIPv6.Set(strings.Join(tmp, "\n"))
+	s = strings.Join(tmp, "\n")
+	if s != hs.currentIPv6.Get() {
+		log.Log(CHANGE, "DNS IPv6 Addresses changed", tmp)
+		hs.currentIPv6.Set(s)
+		hs.changed = true
+	}
 
 	if me.statusOS.ValidHostname() {
 		vals = lookupDoH(me.statusOS.GetHostname(), "AAAA")
 
 		log.Log(STATUS, "DNS IPv6 Addresses for ", me.statusOS.GetHostname(), "=", vals)
-		if len(vals) == 0 {
-			s = "(none)"
-		} else {
-			hs.setIPv6("Check for real IPv6 addresses here")
-			/*
-			if hs.missingAAAA() {
-				hs.setIPv6("Add the missing IPv6 address")
-			}
-			*/
-			for _, addr := range vals {
-				log.Log(STATUS, addr)
-				s += addr + " (DELETE)" + "\n"
-				hs.setIPv6("NEEDS DELETE")
-				// hs.dnsValue.SetText(addr)
-				// hs.dnsAction.SetText("DELETE")
-			}
-		}
-		sort.Strings(vals)
 		hs.dnsAAAA.Set(strings.Join(vals, "\n"))
 
 		vals = lookupDoH(me.statusOS.GetHostname(), "A")
@@ -315,6 +309,11 @@ func (hs *hostnameStatus) updateStatus() {
 			hs.set(hs.dnsA, "CNAME " + s)
 			hs.setIPv4("GOOD")
 		}
+		if hs.changed {
+			log.Log(CHANGE, "stuff changed. trying fixIPv6dns()")
+			fixIPv6dns()
+			hs.changed = false
+		}
 	}
 
 	if hs.IPv4() && hs.IPv6() {
@@ -323,9 +322,54 @@ func (hs *hostnameStatus) updateStatus() {
 		hs.status.Set("BROKEN")
 	}
 	
-	// lookup the DNS provider
-	// hs.dnsAPI.Set(me.DnsAPI.S)
-	lookupNSprovider("wit.com")
+	if hs.verifyIPv6() {
+		hs.statusIPv6.Set("WORKING")
+	} else {
+		hs.statusIPv6.Set("BROKEN")
+	}
+}
+
+func (hs *hostnameStatus) verifyIPv6() bool {
+	var working bool = true
+	osAAAA := make(map[string]string)
+	dnsAAAA := make(map[string]string)
+
+	log.Log(INFO, "What are the AAAA resource records in the OS?")
+	tmp := me.statusOS.GetIPv6()
+	if len(tmp) == 0 {
+		// you don't have any IPv6 addresses in your OS right now
+		return false
+	}
+	for _, aaaa := range me.statusOS.GetIPv6() {
+		log.Log(INFO, "FOUND OS  AAAA ip", aaaa)
+		osAAAA[aaaa] = "os"
+	}
+
+	log.Log(INFO, "What are the AAAA resource records in DNS?")
+	for _, aaaa := range me.statusDNS.GetIPv6() {
+		log.Log(INFO, "FOUND DNS AAAA ip", aaaa)
+		dnsAAAA[aaaa] = "dns"
+	}
+
+	for aaaa, _ := range dnsAAAA {
+		if osAAAA[aaaa] == "os" {
+			log.Log(INFO, "DNS AAAA is in     OS", aaaa)
+		} else {
+			working = false
+			log.Log(INFO, "DNS AAAA is not in OS", aaaa)
+		}
+	}
+
+	for aaaa, _ := range osAAAA {
+		if dnsAAAA[aaaa] == "dns" {
+			log.Log(INFO, "OS  AAAA is in     DNS", aaaa)
+		} else {
+			working = false
+			log.Log(INFO, "OS  AAAA is not in DNS", aaaa)
+		}
+	}
+
+	return working
 }
 
 func (hs *hostnameStatus) Show() {

main.go

@@ -88,7 +88,7 @@ func main() {
 
 	lastProvider := "unknown"
 	go myTicker(10 * time.Second, "DNSloop", func() {
-		log.Log(CHANGE, "me.statusDNS.Update() START")
+		log.Log(INFO, "me.statusDNS.Update() START")
 		me.statusDNS.Update()
 
 		provider := me.statusDNS.GetDNSapi()
@@ -127,7 +127,7 @@ func main() {
 	})
 
 	// check the four known things to see if they are all WORKING
-	myTicker(3 * time.Second, "MAIN LOOP", func() {
+	myTicker(10 * time.Second, "MAIN LOOP", func() {
 		if me.hostnameStatus.GetText() != "WORKING" {
 			log.Log(CHANGE, "The hostname is not WORKING yet", me.hostnameStatus.GetText())
 			return
@@ -144,7 +144,7 @@ func main() {
 			log.Log(CHANGE, "The DNS API provider is not yet working", me.DnsAPIstatus.GetText())
 			return
 		}
-		log.Log(CHANGE, "EVERYTHING IS WORKING. YOU HAVE IPv6 BLISS")
+		log.Log(CHANGE, "EVERYTHING IS WORKING. YOU HAVE IPv6 BLISS. TODO: don't check so often now")
 	})
 }