misc: small fix or general refactoring i did not bother commenting

modules/zerogod/zerogod_show.go

@@ -0,0 +1,76 @@
+package zerogod
+
+import (
+	"fmt"
+	"sort"
+
+	"github.com/evilsocket/islazy/str"
+	"github.com/evilsocket/islazy/tui"
+	"github.com/grandcat/zeroconf"
+)
+
+type entry struct {
+	ip       string
+	services map[string]*zeroconf.ServiceEntry
+}
+
+func (mod *ZeroGod) show(filter string, withData bool) error {
+	fmt.Fprintf(mod.Session.Events.Stdout, "\n")
+
+	// convert to list for sorting
+	entries := make([]entry, 0)
+	for ip, services := range mod.mapping {
+		if filter == "" || ip == filter {
+			entries = append(entries, entry{ip, services})
+		}
+	}
+
+	sort.Slice(entries, func(i, j int) bool {
+		return entries[i].ip < entries[j].ip
+	})
+
+	for _, entry := range entries {
+		if endpoint := mod.Session.Lan.GetByIp(entry.ip); endpoint != nil {
+			fmt.Fprintf(mod.Session.Events.Stdout, "* %s (%s)\n", tui.Bold(endpoint.IpAddress), tui.Dim(endpoint.Vendor))
+		} else {
+			fmt.Fprintf(mod.Session.Events.Stdout, "* %s\n", tui.Bold(entry.ip))
+		}
+
+		for name, svc := range entry.services {
+			fmt.Fprintf(mod.Session.Events.Stdout, "  %s (%s) [%v / %v]:%s\n",
+				tui.Green(name),
+				tui.Dim(svc.HostName),
+				svc.AddrIPv4,
+				svc.AddrIPv6,
+				tui.Red(fmt.Sprintf("%d", svc.Port)),
+			)
+
+			numFields := len(svc.Text)
+			if withData {
+				if numFields > 0 {
+					for _, field := range svc.Text {
+						if field = str.Trim(field); len(field) > 0 {
+							fmt.Fprintf(mod.Session.Events.Stdout, "    %s\n", field)
+						}
+					}
+				} else {
+					fmt.Fprintf(mod.Session.Events.Stdout, "    %s\n", tui.Dim("no data"))
+				}
+			} else {
+				if numFields > 0 {
+					fmt.Fprintf(mod.Session.Events.Stdout, "    <%d records>\n", numFields)
+				} else {
+					fmt.Fprintf(mod.Session.Events.Stdout, "    %s\n", tui.Dim("<no records>"))
+				}
+			}
+		}
+
+		fmt.Fprintf(mod.Session.Events.Stdout, "\n")
+	}
+
+	if len(entries) > 0 {
+		mod.Session.Refresh()
+	}
+
+	return nil
+}