forked from ipfs/kubo
-
Notifications
You must be signed in to change notification settings - Fork 1
/
ping.go
216 lines (188 loc) · 4.89 KB
/
ping.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
package commands
import (
"bytes"
"fmt"
"io"
"reflect"
"strings"
"time"
cmds "github.com/ipfs/go-ipfs/commands"
core "github.com/ipfs/go-ipfs/core"
pstore "gx/ipfs/QmPgDWmTmuzvP7QE5zwo1TmjbJme9pmZHNujB2453jkCTr/go-libp2p-peerstore"
u "gx/ipfs/QmSU6eubNdhXjFBJBSksTp8kv8YRub8mGAPv8tVJHmL2EU/go-ipfs-util"
peer "gx/ipfs/QmXYjuNuxVzXKJCfWasQk1RqkhVLDM9jtUKhqc2WPQmFSB/go-libp2p-peer"
context "context"
ma "gx/ipfs/QmXY77cVe7rVRQXZZQRioukUM7aRW3BTcAgJe12MCtb3Ji/go-multiaddr"
)
const kPingTimeout = 10 * time.Second
type PingResult struct {
Success bool
Time time.Duration
Text string
}
var PingCmd = &cmds.Command{
Helptext: cmds.HelpText{
Tagline: "Send echo request packets to IPFS hosts.",
ShortDescription: `
'ipfs ping' is a tool to test sending data to other nodes. It finds nodes
via the routing system, sends pings, waits for pongs, and prints out round-
trip latency information.
`,
},
Arguments: []cmds.Argument{
cmds.StringArg("peer ID", true, true, "ID of peer to be pinged.").EnableStdin(),
},
Options: []cmds.Option{
cmds.IntOption("count", "n", "Number of ping messages to send.").Default(10),
},
Marshalers: cmds.MarshalerMap{
cmds.Text: func(res cmds.Response) (io.Reader, error) {
outChan, ok := res.Output().(<-chan interface{})
if !ok {
fmt.Println(reflect.TypeOf(res.Output()))
return nil, u.ErrCast()
}
marshal := func(v interface{}) (io.Reader, error) {
obj, ok := v.(*PingResult)
if !ok {
return nil, u.ErrCast()
}
buf := new(bytes.Buffer)
if len(obj.Text) > 0 {
buf = bytes.NewBufferString(obj.Text + "\n")
} else if obj.Success {
fmt.Fprintf(buf, "Pong received: time=%.2f ms\n", obj.Time.Seconds()*1000)
} else {
fmt.Fprintf(buf, "Pong failed\n")
}
return buf, nil
}
return &cmds.ChannelMarshaler{
Channel: outChan,
Marshaler: marshal,
Res: res,
}, nil
},
},
Run: func(req cmds.Request, res cmds.Response) {
ctx := req.Context()
n, err := req.InvocContext().GetNode()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
// Must be online!
if !n.OnlineMode() {
res.SetError(errNotOnline, cmds.ErrClient)
return
}
addr, peerID, err := ParsePeerParam(req.Arguments()[0])
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
if addr != nil {
n.Peerstore.AddAddr(peerID, addr, pstore.TempAddrTTL) // temporary
}
numPings, _, err := req.Option("count").Int()
if err != nil {
res.SetError(err, cmds.ErrNormal)
return
}
outChan := pingPeer(ctx, n, peerID, numPings)
res.SetOutput(outChan)
},
Type: PingResult{},
}
func pingPeer(ctx context.Context, n *core.IpfsNode, pid peer.ID, numPings int) <-chan interface{} {
outChan := make(chan interface{})
go func() {
defer close(outChan)
if len(n.Peerstore.Addrs(pid)) == 0 {
// Make sure we can find the node in question
outChan <- &PingResult{
Text: fmt.Sprintf("Looking up peer %s", pid.Pretty()),
Success: true,
}
ctx, cancel := context.WithTimeout(ctx, kPingTimeout)
defer cancel()
p, err := n.Routing.FindPeer(ctx, pid)
if err != nil {
outChan <- &PingResult{Text: fmt.Sprintf("Peer lookup error: %s", err)}
return
}
n.Peerstore.AddAddrs(p.ID, p.Addrs, pstore.TempAddrTTL)
}
outChan <- &PingResult{
Text: fmt.Sprintf("PING %s.", pid.Pretty()),
Success: true,
}
ctx, cancel := context.WithTimeout(ctx, kPingTimeout*time.Duration(numPings))
defer cancel()
pings, err := n.Ping.Ping(ctx, pid)
if err != nil {
log.Debugf("Ping error: %s", err)
outChan <- &PingResult{
Success: false,
Text: fmt.Sprintf("Ping error: %s", err),
}
return
}
var done bool
var total time.Duration
for i := 0; i < numPings && !done; i++ {
select {
case <-ctx.Done():
done = true
break
case t, ok := <-pings:
if !ok {
done = true
break
}
outChan <- &PingResult{
Success: true,
Time: t,
}
total += t
time.Sleep(time.Second)
}
}
averagems := total.Seconds() * 1000 / float64(numPings)
outChan <- &PingResult{
Success: true,
Text: fmt.Sprintf("Average latency: %.2fms", averagems),
}
}()
return outChan
}
func ParsePeerParam(text string) (ma.Multiaddr, peer.ID, error) {
// to be replaced with just multiaddr parsing, once ptp is a multiaddr protocol
idx := strings.LastIndex(text, "/")
if idx == -1 {
pid, err := peer.IDB58Decode(text)
if err != nil {
return nil, "", err
}
return nil, pid, nil
}
addrS := text[:idx]
peeridS := text[idx+1:]
var maddr ma.Multiaddr
var pid peer.ID
// make sure addrS parses as a multiaddr.
if len(addrS) > 0 {
var err error
maddr, err = ma.NewMultiaddr(addrS)
if err != nil {
return nil, "", err
}
}
// make sure idS parses as a peer.ID
var err error
pid, err = peer.IDB58Decode(peeridS)
if err != nil {
return nil, "", err
}
return maddr, pid, nil
}