micro/transport/quic/quic.go
2019-06-03 19:30:43 +01:00

183 lines
3.0 KiB
Go

// Package quic provides a QUIC based transport
package quic
import (
"crypto/tls"
"encoding/gob"
"github.com/lucas-clemente/quic-go"
"github.com/micro/go-micro/transport"
utls "github.com/micro/go-micro/util/tls"
)
type quicSocket struct {
s quic.Session
st quic.Stream
enc *gob.Encoder
dec *gob.Decoder
}
type quicTransport struct {
opts transport.Options
}
type quicClient struct {
*quicSocket
t *quicTransport
opts transport.DialOptions
}
type quicListener struct {
l quic.Listener
t *quicTransport
opts transport.ListenOptions
}
func (q *quicClient) Close() error {
return q.quicSocket.st.Close()
}
func (q *quicSocket) Recv(m *transport.Message) error {
return q.dec.Decode(&m)
}
func (q *quicSocket) Send(m *transport.Message) error {
return q.enc.Encode(m)
}
func (q *quicSocket) Close() error {
return q.s.Close()
}
func (q *quicSocket) Local() string {
return q.s.LocalAddr().String()
}
func (q *quicSocket) Remote() string {
return q.s.RemoteAddr().String()
}
func (q *quicListener) Addr() string {
return q.l.Addr().String()
}
func (q *quicListener) Close() error {
return q.l.Close()
}
func (q *quicListener) Accept(fn func(transport.Socket)) error {
for {
s, err := q.l.Accept()
if err != nil {
return err
}
stream, err := s.AcceptStream()
if err != nil {
continue
}
go func() {
fn(&quicSocket{
s: s,
st: stream,
enc: gob.NewEncoder(stream),
dec: gob.NewDecoder(stream),
})
}()
}
}
func (q *quicTransport) Init(opts ...transport.Option) error {
for _, o := range opts {
o(&q.opts)
}
return nil
}
func (q *quicTransport) Options() transport.Options {
return q.opts
}
func (q *quicTransport) Dial(addr string, opts ...transport.DialOption) (transport.Client, error) {
var options transport.DialOptions
for _, o := range opts {
o(&options)
}
config := q.opts.TLSConfig
if config == nil {
config = &tls.Config{
InsecureSkipVerify: true,
}
}
s, err := quic.DialAddr(addr, config, nil)
if err != nil {
return nil, err
}
st, err := s.OpenStreamSync()
if err != nil {
return nil, err
}
enc := gob.NewEncoder(st)
dec := gob.NewDecoder(st)
return &quicClient{
&quicSocket{
s: s,
st: st,
enc: enc,
dec: dec,
},
q,
options,
}, nil
}
func (q *quicTransport) Listen(addr string, opts ...transport.ListenOption) (transport.Listener, error) {
var options transport.ListenOptions
for _, o := range opts {
o(&options)
}
config := q.opts.TLSConfig
if config == nil {
cfg, err := utls.Certificate(addr)
if err != nil {
return nil, err
}
config = &tls.Config{
Certificates: []tls.Certificate{cfg},
}
}
l, err := quic.ListenAddr(addr, config, nil)
if err != nil {
return nil, err
}
return &quicListener{
l: l,
t: q,
opts: options,
}, nil
}
func (q *quicTransport) String() string {
return "quic"
}
func NewTransport(opts ...transport.Option) transport.Transport {
options := transport.Options{}
for _, o := range opts {
o(&options)
}
return &quicTransport{
opts: options,
}
}