button to investigate port 53 daemon

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

gui.go

@@ -107,19 +107,19 @@ func debugTab(title string) {
 	g2 = tab.NewGroup("debugging options")
 
 	// DEBUG flags
-	dbOn := g2.NewCheckbox("turn on debugging (will override all flags below)")
+	me.dbOn = g2.NewCheckbox("turn on debugging (will override all flags below)")
-	dbOn.Custom = func() {
+	me.dbOn.Custom = func() {
-		DEBUGON = dbOn.B
+		DEBUGON = me.dbOn.B
 	}
 
-	dbNet := g2.NewCheckbox("turn on network debugging)")
+	me.dbNet = g2.NewCheckbox("turn on network debugging)")
-	dbNet.Custom = func() {
+	me.dbNet.Custom = func() {
-		DEBUGNET = dbNet.B
+		DEBUGNET = me.dbNet.B
 	}
 
-	dbProc := g2.NewCheckbox("turn on /proc debugging)")
+	me.dbProc = g2.NewCheckbox("turn on /proc debugging)")
-	dbProc.Custom = func() {
+	me.dbProc.Custom = func() {
-		DEBUGPROC = dbProc.B
+		DEBUGPROC = me.dbProc.B
 	}
 
 	// various timeout settings
@@ -151,9 +151,9 @@ func myDefaultExit(n *gui.Node) {
 func dnsTab(title string) {
 	tab := me.window.NewTab(title)
 
-	g := tab.NewGroup("dns update")
+	me.mainStatus = tab.NewGroup("dns update")
 
-	grid := g.NewGrid("gridnuts", 2, 2)
+	grid := me.mainStatus.NewGrid("gridnuts", 2, 2)
 
 	grid.SetNext(1,1)
 	grid.NewLabel("hostname =")
@@ -183,7 +183,7 @@ func dnsTab(title string) {
 	me.DnsStatus = grid.NewLabel("unknown")
 	*/
 
-	me.fix = g.NewButton("Fix", func () {
+	me.fix = me.mainStatus.NewButton("Fix", func () {
 		if (goodHostname(me.hostname)) {
 			log.Println("hostname is good:", me.hostname)
 		} else {
@@ -191,6 +191,7 @@ func dnsTab(title string) {
 			return
 		}
 		nsupdate()
+		me.fixProc.Disable()
 	})
 	me.fix.Disable()
 
@@ -300,3 +301,22 @@ func updateDNS() {
 	}
 	log.Println("updateDNS() END")
 }
+
+func suggestProcDebugging() {
+	if (me.fixProc != nil) {
+		// me.fixProc.Disable()
+		return
+	}
+
+	me.fixProc = me.mainStatus.NewButton("Try debugging Slow DNS lookups", func () {
+		debug("You're DNS lookups are very slow")
+		me.dbOn.Set(true)
+		me.dbProc.Set(true)
+
+		DEBUGON = true
+		DEBUGPROC = true
+		processName := getProcessNameByPort(53)
+		log.Println("Process with port 53:", processName)
+	})
+	// me.fixProc.Disable()
+}

main.go

@@ -58,28 +58,39 @@ func checkNetworkChanges() {
 		ttl -= 1
 		if (ttl < 0) {
 			if (runtime.GOOS == "linux") {
+				linuxLoop()
+			} else {
+				// TODO: make windows and macos diagnostics
+				log.Println("Windows and MacOS don't work yet")
+			}
+			ttl = me.dnsTTL
+		}
+	}
+}
+
+// run this on each timeout
+func linuxLoop() {
 	duration := timeFunction(dnsTTL)
 	log.Println("dnsTTL() execution Time: ", duration)
 	var s string
 	if (duration > 5000 * time.Millisecond ) {
 		s = fmt.Sprint("VERY BAD\n", duration)
+		suggestProcDebugging()
 	} else if (duration > 2000 * time.Millisecond ) {
 		s = fmt.Sprint("BAD\n", duration)
+		suggestProcDebugging()
 	} else if (duration > 500 * time.Millisecond ) {
 		s = fmt.Sprint("SLOW\n", duration)
 	} else if (duration > 100 * time.Millisecond ) {
 		s = fmt.Sprint("OK\n", duration)
 	} else {
 		s = fmt.Sprint("FAST\n", duration)
+		if (me.fixProc != nil) {
+			me.fixProc.Disable()
+		}
 	}
 	log.Println(true, "getHostname()", s)
 	me.DnsSpeed.SetText(s)
-			} else {
-				log.Println("Windows and MacOS don't work yet")
-			}
-			ttl = me.dnsTTL
-		}
-	}
 }
 
 // This checks for changes to the network settings
@@ -111,9 +122,10 @@ func dnsTTL() {
 		updateDNS()
 	}
 
+	/*
 	processName := getProcessNameByPort(53)
 	fmt.Println("Process with port 53:", processName)
-	/*
+
 	commPath := filepath.Join("/proc", proc.Name(), "comm")
 	comm, err := ioutil.ReadFile(commPath)
 	if err != nil {

structs.go

@@ -38,7 +38,15 @@ type Host struct {
 	DnsA		*gui.Node		// the actual DNS A results (ignore for status since mostly never happens?)
 	DnsStatus	*gui.Node		// the current state of DNS
 	DnsSpeed	*gui.Node		// the current state of DNS
+
 	fix		*gui.Node		// button for the user to click
+	fixProc		*gui.Node		// button for the user to click
+
+	mainStatus	*gui.Node		// group for the main display of stuff
+
+	dbOn		*gui.Node		// button for setting debugging on
+	dbNet		*gui.Node		// button for setting network debugging on
+	dbProc		*gui.Node		// button for setting proc debugging on
 }
 
 type IPtype struct {