/
quic_server.go
132 lines (117 loc) · 2.61 KB
/
quic_server.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
package server
import (
"context"
"crypto/tls"
"net"
"sync"
"sync/atomic"
"github.com/josexy/mini-ss/connection"
"github.com/josexy/mini-ss/transport"
"github.com/josexy/mini-ss/util"
"github.com/quic-go/quic-go"
)
type QuicServer struct {
quic.EarlyListener
Opts *transport.QuicOptions
Addr string
Handler QuicHandler
mu sync.Mutex
closed uint32
doneChan chan struct{}
err chan error
}
func NewQuicServer(addr string, handler QuicHandler, opts transport.Options) *QuicServer {
return &QuicServer{
Addr: addr,
Handler: handler,
doneChan: make(chan struct{}),
err: make(chan error, 1),
Opts: opts.(*transport.QuicOptions),
closed: 1,
}
}
func (s *QuicServer) Error() chan error { return s.err }
func (s *QuicServer) Build() Server { return s }
func (s *QuicServer) LocalAddr() string { return s.Addr }
func (s *QuicServer) Type() ServerType { return Quic }
func (s *QuicServer) Start() {
quicConfig := &quic.Config{
HandshakeIdleTimeout: s.Opts.HandshakeIdleTimeout,
KeepAlivePeriod: s.Opts.KeepAlivePeriod,
MaxIdleTimeout: s.Opts.MaxIdleTimeout,
Versions: []quic.VersionNumber{
quic.Version1,
quic.VersionDraft29,
},
}
var tlsConfig *tls.Config
if tlsConfig == nil {
cert, err := util.GenCertificate()
if err != nil {
s.err <- err
return
}
tlsConfig = &tls.Config{
Certificates: []tls.Certificate{cert},
}
}
conn, err := net.ListenPacket("udp", s.Addr)
if err != nil {
s.err <- err
return
}
ln, err := quic.ListenEarly(conn, transport.TlsConfigQuicALPN(tlsConfig), quicConfig)
if err != nil {
s.err <- err
return
}
s.EarlyListener = ln
defer s.Close()
s.err <- nil
atomic.StoreUint32(&s.closed, 0)
for {
conn, err := ln.Accept(context.Background())
if err != nil {
select {
case <-s.getDoneChan():
return
default:
}
continue
}
go s.serve(conn)
}
}
func (s *QuicServer) Serve(c *Conn) {
if s.Handler != nil {
s.Handler.ServeQUIC(c.conn)
}
}
func (s *QuicServer) serve(c quic.Connection) {
for {
stream, err := c.AcceptStream(context.Background())
if err != nil {
return
}
conn := newConn(connection.NewQuicConn(stream, c.LocalAddr(), c.RemoteAddr()), s)
go conn.serve()
}
}
func (s *QuicServer) Close() error {
if atomic.LoadUint32(&s.closed) != 0 {
return ErrServerClosed
}
s.mu.Lock()
defer s.mu.Unlock()
atomic.StoreUint32(&s.closed, 1)
close(s.doneChan)
return s.EarlyListener.Close()
}
func (s *QuicServer) getDoneChan() <-chan struct{} {
s.mu.Lock()
defer s.mu.Unlock()
if s.doneChan == nil {
s.doneChan = make(chan struct{})
}
return s.doneChan
}