Embedded NATS Broker (#1110)

* if the address is produced by a default route don't hash it

* embedded nats

* fix url parsing

* don't override help

* add ready flag

util/addr/addr.go

@@ -27,6 +27,29 @@ func isPrivateIP(ipAddr string) bool {
 	return false
 }
 
+// IsLocal tells us whether an ip is local
+func IsLocal(addr string) bool {
+	// extract the host
+	host, _, err := net.SplitHostPort(addr)
+	if err == nil {
+		addr = host
+	}
+
+	// check if its localhost
+	if addr == "localhost" {
+		return true
+	}
+
+	// check against all local ips
+	for _, ip := range IPs() {
+		if addr == ip {
+			return true
+		}
+	}
+
+	return false
+}
+
 // Extract returns a real ip
 func Extract(addr string) (string, error) {
 	// if addr specified then its returned

util/addr/addr_test.go

@@ -5,6 +5,26 @@ import (
 	"testing"
 )
 
+func TestIsLocal(t *testing.T) {
+	testData := []struct {
+		addr   string
+		expect bool
+	}{
+		{"localhost", true},
+		{"localhost:8080", true},
+		{"127.0.0.1", true},
+		{"127.0.0.1:1001", true},
+		{"80.1.1.1", false},
+	}
+
+	for _, d := range testData {
+		res := IsLocal(d.addr)
+		if res != d.expect {
+			t.Fatalf("expected %t got %t", d.expect, res)
+		}
+	}
+}
+
 func TestExtractor(t *testing.T) {
 	testData := []struct {
 		addr   string