-
Notifications
You must be signed in to change notification settings - Fork 2
/
connect_test.go
228 lines (205 loc) · 4.46 KB
/
connect_test.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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
package main
import (
"bytes"
"crypto/rand"
"crypto/tls"
"fmt"
"net"
"testing"
"time"
"github.com/UlisseMini/ngo/internal/tlsconfig"
log "github.com/sirupsen/logrus"
)
// initalize the tests by disabling logging from the main program.
func init() {
// disable the logging levels
log.SetLevel(0)
}
// getpkt returns a byte array of random bytes
func getpkt(size int) []byte {
buf := make([]byte, size)
_, err := rand.Read(buf)
if err != nil {
panic(err)
}
return buf
}
type testcase struct {
// the config to pass to connect
conf config
// should our side listen?
listen bool
packetSize int
packet []byte
}
// Test the connect function. creates a listener in a new goroutine
// then connects using the `connect` function from `main.go`
func Test_connect(t *testing.T) {
const packetSize = 16 // size of the packet in bytes
tt := []testcase{
// test connect connecting to us (plain)
testcase{
conf: config{
proto: "tcp",
addr: "127.0.0.1:31893",
timeout: 1 * time.Second,
listen: false,
},
listen: true,
packetSize: packetSize,
packet: getpkt(packetSize),
},
// test connect listening (plain)
testcase{
conf: config{
proto: "tcp",
addr: "127.0.0.1:40913",
timeout: 1 * time.Second,
listen: true,
},
listen: false,
packetSize: packetSize,
packet: getpkt(packetSize),
},
// test ssl listening \w connect
testcase{
conf: config{
proto: "tcp",
addr: "127.0.0.1:38103",
timeout: 1 * time.Second,
listen: true,
ssl: true,
},
listen: false,
packetSize: packetSize,
packet: getpkt(packetSize),
},
// test ssl connecting \w connect
testcase{
conf: config{
proto: "tcp",
addr: "127.0.0.1:38103",
timeout: 1 * time.Second,
listen: false,
ssl: true,
},
listen: true,
packetSize: packetSize,
packet: getpkt(packetSize),
},
}
for _, tc := range tt {
// generate the packet
packet := make([]byte, packetSize)
n, err := rand.Read(packet)
if err != nil {
// this should never error, but just in case
t.Error(err)
continue
} else if n < packetSize {
t.Errorf("n (%d) is less then packetSize (%d)", n, packetSize)
continue
}
errChan := make(chan error, 1)
if tc.listen {
// listen for the client
go listen(tc, errChan)
time.Sleep(100 * time.Millisecond)
} else {
// connect to the client (that is listening)
go func() {
time.Sleep(100 * time.Millisecond)
connectClient(tc, errChan)
}()
}
select {
case err := <-errChan:
t.Fatalf("errChan: %v", err)
default:
t.Logf("Testing connect with: %#v", tc.conf)
conn, err := connect(tc.conf)
if err != nil {
t.Fatalf("connect: %v", err)
}
defer conn.Close()
// now we have the connection send the packet
n, err := conn.Write(packet)
if err != nil {
t.Fatalf("failed to send packet: %v", err)
}
if n < packetSize {
t.Fatalf("send: n (%d) < packetSize (%d)", n, packetSize)
}
}
}
}
func listen(tc testcase, errChan chan error) {
var (
l net.Listener
err error
)
if tc.conf.ssl {
// listen using ssl / tls
config, err := tlsconfig.Get(hostname)
if err != nil {
errChan <- err
return
}
l, err = tls.Listen(tc.conf.proto, tc.conf.addr, config)
} else {
l, err = net.Listen(tc.conf.proto, tc.conf.addr)
}
if err != nil {
errChan <- err
return
}
defer l.Close()
conn, err := l.Accept()
if err != nil {
errChan <- err
return
}
defer conn.Close()
err = readPacket(conn, tc)
if err != nil {
errChan <- err
}
}
// connect to the client listening (connect function)
func connectClient(tc testcase, errChan chan error) {
var (
conn net.Conn
err error
)
if tc.conf.ssl {
conn, err = tls.Dial(tc.conf.proto, tc.conf.addr,
&tls.Config{InsecureSkipVerify: true})
} else {
conn, err = net.DialTimeout(tc.conf.proto, tc.conf.addr, 100*time.Millisecond)
}
if err != nil {
errChan <- err
return
}
defer conn.Close()
err = readPacket(conn, tc)
if err != nil {
errChan <- err
}
}
func readPacket(conn net.Conn, tc testcase) error {
buf := make([]byte, tc.packetSize)
n, err := conn.Read(buf)
if err != nil {
return err
}
if n < tc.packetSize {
return fmt.Errorf("readPacket: n (%d) is less then packetSize (%d)",
n, tc.packetSize)
}
// now make sure its valid
if bytes.Equal(buf, tc.packet) {
return fmt.Errorf("readPacket: buf (%X) != packet (%X)", buf, tc.packet)
}
return nil
}