/
server.go
177 lines (147 loc) · 3.49 KB
/
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
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
// Copyright 2020 Canonical Ltd.
// Licensed under the AGPLv3, see LICENCE file for details.
package muxhttpserver
import (
"crypto/tls"
"fmt"
"net"
"net/http"
"strings"
"github.com/juju/errors"
"github.com/juju/worker/v3/catacomb"
"github.com/juju/juju/apiserver/apiserverhttp"
"github.com/juju/juju/pki"
pkitls "github.com/juju/juju/pki/tls"
)
type Config struct {
Address string
Port string
}
type Logger interface {
Debugf(string, ...interface{})
Errorf(string, ...interface{})
Infof(string, ...interface{})
}
// Server is the http server running inside this worker handling requests to
// the http mux
type Server struct {
catacomb catacomb.Catacomb
info ServerInfo
listener net.Listener
logger Logger
Mux *apiserverhttp.Mux
server *http.Server
}
// ServerInfo represents a small interface for informining interested party's
// through manifolds outputs the listening information of the server
type ServerInfo interface {
Port() string
PortInt() (int, error)
}
type serverInfo struct {
port string
}
var (
defaultPort = "17071"
)
func catacombInvoke(server *Server) (*Server, error) {
if err := catacomb.Invoke(catacomb.Plan{
Site: &server.catacomb,
Work: server.loop,
}); err != nil {
return server, errors.Trace(err)
}
return server, nil
}
func NewServerWithOutTLS(logger Logger, conf Config) (*Server, error) {
mux := apiserverhttp.NewMux()
listener, err := net.Listen("tcp", fmt.Sprintf("%s:%s", conf.Address, conf.Port))
if err != nil {
return nil, errors.Annotate(err, "creating mux http server listener")
}
httpServ := &http.Server{
Handler: mux,
}
server := &Server{
info: &serverInfo{conf.Port},
listener: listener,
logger: logger,
Mux: mux,
server: httpServ,
}
return catacombInvoke(server)
}
func NewServer(authority pki.Authority, logger Logger, conf Config) (*Server, error) {
mux := apiserverhttp.NewMux()
tlsConfig := &tls.Config{
GetCertificate: pkitls.AuthoritySNITLSGetter(authority, logger),
}
listener, err := net.Listen("tcp", fmt.Sprintf("%s:%s", conf.Address, conf.Port))
if err != nil {
return nil, errors.Annotate(err, "creating mux http server listener")
}
httpServ := &http.Server{
Handler: mux,
TLSConfig: tlsConfig,
}
server := &Server{
info: &serverInfo{conf.Port},
listener: listener,
logger: logger,
Mux: mux,
server: httpServ,
}
return catacombInvoke(server)
}
func DefaultConfig() Config {
return Config{
Port: defaultPort,
}
}
// Kill implements the worker interface
func (s *Server) Kill() {
s.catacomb.Kill(nil)
}
func (s *serverInfo) Port() string {
return s.port
}
func (s *serverInfo) PortInt() (int, error) {
return net.LookupPort("tcp", s.port)
}
func (s *Server) Port() string {
splits := strings.Split(s.listener.Addr().String(), ":")
if len(splits) == 0 {
return ""
}
return splits[len(splits)-1]
}
// Wait implements the worker interface
func (s *Server) Wait() error {
return s.catacomb.Wait()
}
func (s *Server) Info() ServerInfo {
return s.info
}
func (s *Server) loop() error {
httpCh := make(chan error)
go func() {
s.logger.Infof("starting http server on %s", s.listener.Addr())
if s.server.TLSConfig == nil {
httpCh <- s.server.Serve(s.listener)
} else {
httpCh <- s.server.ServeTLS(s.listener, "", "")
}
close(httpCh)
}()
for {
select {
case <-s.catacomb.Dying():
s.server.Close()
case err := <-httpCh:
if err != nil && err != http.ErrServerClosed {
return err
}
return s.catacomb.ErrDying()
}
}
}