special handling for IPv6 from URL

common/net/address.go

@@ -73,6 +73,12 @@ type Address interface {
 // ParseAddress parses a string into an Address. The return value will be an IPAddress when
 // the string is in the form of IPv4 or IPv6 address, or a DomainAddress otherwise.
 func ParseAddress(addr string) Address {
+	// Handle IPv6 address in form as "[2001:4860:0:2001::68]"
+	lenAddr := len(addr)
+	if lenAddr > 0 && addr[0] == '[' && addr[lenAddr-1] == ']' {
+		addr = addr[1 : lenAddr-1]
+	}
+
 	ip := net.ParseIP(addr)
 	if ip != nil {
 		return IPAddress(ip)

common/net/address_test.go

@@ -73,3 +73,15 @@ func TestNetIPv4Address(t *testing.T) {
 	assert(addr, IsIPv4)
 	assert(addr.String(), Equals, "1.2.3.4")
 }
+
+func TestParseIPv6Address(t *testing.T) {
+	assert := With(t)
+
+	ip := ParseAddress("[2001:4860:0:2001::68]")
+	assert(ip, IsIPv6)
+	assert(ip.String(), Equals, "[2001:4860:0:2001::68]")
+
+	ip = ParseAddress("[::ffff:123.151.71.143]")
+	assert(ip, IsIPv4)
+	assert(ip.String(), Equals, "123.151.71.143")
+}