This repository has been archived by the owner on Dec 7, 2019. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 7
/
transport.go
262 lines (225 loc) · 4.62 KB
/
transport.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
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
package utils
import (
"bytes"
"context"
"fmt"
"io"
"io/ioutil"
"sync"
"testing"
peer "github.com/libp2p/go-libp2p-peer"
tpt "github.com/libp2p/go-libp2p-transport"
smux "github.com/libp2p/go-stream-muxer"
ma "github.com/multiformats/go-multiaddr"
)
var testData = []byte("this is some test data")
type streamAndConn struct {
stream smux.Stream
conn tpt.Conn
}
func SubtestProtocols(t *testing.T, ta, tb tpt.Transport, maddr ma.Multiaddr, peerA peer.ID) {
rawIPAddr, _ := ma.NewMultiaddr("/ip4/1.2.3.4")
if ta.CanDial(rawIPAddr) || tb.CanDial(rawIPAddr) {
t.Error("nothing should be able to dial raw IP")
}
tprotos := make(map[int]bool)
for _, p := range ta.Protocols() {
tprotos[p] = true
}
if !ta.Proxy() {
protos := maddr.Protocols()
proto := protos[len(protos)-1]
if !tprotos[proto.Code] {
t.Errorf("transport should have reported that it supports protocol '%s' (%d)", proto.Name, proto.Code)
}
} else {
found := false
for _, proto := range maddr.Protocols() {
if tprotos[proto.Code] {
found = true
break
}
}
if !found {
t.Errorf("didn't find any matching proxy protocols in maddr: %s", maddr)
}
}
}
func SubtestBasic(t *testing.T, ta, tb tpt.Transport, maddr ma.Multiaddr, peerA peer.ID) {
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
list, err := ta.Listen(maddr)
if err != nil {
t.Fatal(err)
}
defer list.Close()
done := make(chan struct{})
go func() {
defer close(done)
c, err := list.Accept()
if err != nil {
t.Fatal(err)
return
}
s, err := c.AcceptStream()
if err != nil {
c.Close()
t.Fatal(err)
return
}
buf := make([]byte, len(testData))
_, err = io.ReadFull(s, buf)
if err != nil {
t.Fatal(err)
return
}
n, err := s.Write(testData)
if err != nil {
t.Fatal(err)
return
}
s.Close()
if n != len(testData) {
t.Fatal(err)
return
}
}()
if !tb.CanDial(list.Multiaddr()) {
t.Error("CanDial should have returned true")
}
c, err := tb.Dial(ctx, list.Multiaddr(), peerA)
if err != nil {
t.Fatal(err)
}
defer c.Close()
s, err := c.OpenStream()
if err != nil {
t.Fatal(err)
}
n, err := s.Write(testData)
if err != nil {
t.Fatal(err)
return
}
if n != len(testData) {
t.Fatalf("failed to write enough data (a->b)")
return
}
buf := make([]byte, len(testData))
_, err = io.ReadFull(s, buf)
if err != nil {
t.Fatal(err)
return
}
}
func SubtestPingPong(t *testing.T, ta, tb tpt.Transport, maddr ma.Multiaddr, peerA peer.ID) {
streams := 100
ctx, cancel := context.WithCancel(context.Background())
defer cancel()
list, err := ta.Listen(maddr)
if err != nil {
t.Fatal(err)
}
defer list.Close()
var wg sync.WaitGroup
wg.Add(1)
go func() {
defer wg.Done()
c, err := list.Accept()
if err != nil {
t.Error(err)
return
}
defer c.Close()
var sWg sync.WaitGroup
for i := 0; i < streams; i++ {
s, err := c.AcceptStream()
if err != nil {
t.Error(err)
return
}
sWg.Add(1)
go func() {
defer sWg.Done()
data, err := ioutil.ReadAll(s)
if err != nil {
s.Reset()
t.Error(err)
return
}
if !bytes.HasPrefix(data, testData) {
t.Errorf("expected %q to have prefix %q", string(data), string(testData))
}
n, err := s.Write(data)
if err != nil {
s.Reset()
t.Error(err)
return
}
if n != len(data) {
s.Reset()
t.Error(err)
return
}
s.Close()
}()
}
sWg.Wait()
}()
if !tb.CanDial(list.Multiaddr()) {
t.Error("CanDial should have returned true")
}
c, err := tb.Dial(ctx, list.Multiaddr(), peerA)
if err != nil {
t.Fatal(err)
}
defer c.Close()
for i := 0; i < streams; i++ {
s, err := c.OpenStream()
if err != nil {
t.Error(err)
continue
}
wg.Add(1)
go func(i int) {
defer wg.Done()
data := []byte(fmt.Sprintf("%s - %d", testData, i))
n, err := s.Write(data)
if err != nil {
s.Reset()
t.Error(err)
return
}
if n != len(data) {
s.Reset()
t.Error("failed to write enough data (a->b)")
return
}
s.Close()
ret, err := ioutil.ReadAll(s)
if err != nil {
s.Reset()
t.Error(err)
return
}
if !bytes.Equal(data, ret) {
t.Errorf("expected %q, got %q", string(data), string(ret))
}
}(i)
}
wg.Wait()
}
func SubtestCancel(t *testing.T, ta, tb tpt.Transport, maddr ma.Multiaddr, peerA peer.ID) {
list, err := ta.Listen(maddr)
if err != nil {
t.Fatal(err)
}
defer list.Close()
ctx, cancel := context.WithCancel(context.Background())
cancel()
c, err := tb.Dial(ctx, list.Multiaddr(), peerA)
if err == nil {
c.Close()
t.Fatal("dial should have failed")
}
}