forked from buger/goreplay
/
input_raw.go
85 lines (65 loc) · 1.64 KB
/
input_raw.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
package main
import (
raw "github.com/buger/gor/raw_socket_listener"
"log"
"net"
"strings"
"time"
)
// RAWInput used for intercepting traffic for given address
type RAWInput struct {
data chan *raw.TCPMessage
address string
expire time.Duration
quit chan bool
listener *raw.Listener
}
// NewRAWInput constructor for RAWInput. Accepts address with port as argument.
func NewRAWInput(address string, expire time.Duration) (i *RAWInput) {
i = new(RAWInput)
i.data = make(chan *raw.TCPMessage)
i.address = address
i.expire = expire
i.quit = make(chan bool)
go i.listen(address)
return
}
func (i *RAWInput) Read(data []byte) (int, error) {
msg := <-i.data
buf := msg.Bytes()
var header []byte
if msg.IsIncoming {
header = payloadHeader(RequestPayload, msg.UUID(), msg.Start.UnixNano())
} else {
header = payloadHeader(ResponsePayload, msg.UUID(), msg.End.UnixNano()-msg.RequestStart.UnixNano())
}
copy(data[0:len(header)], header)
copy(data[len(header):], buf)
return len(buf) + len(header), nil
}
func (i *RAWInput) listen(address string) {
address = strings.Replace(address, "[::]", "127.0.0.1", -1)
Debug("Listening for traffic on: " + address)
host, port, err := net.SplitHostPort(address)
if err != nil {
log.Fatal("input-raw: error while parsing address", err)
}
i.listener = raw.NewListener(host, port, i.expire, true)
for {
select {
case <-i.quit:
return
default:
}
// Receiving TCPMessage object
m := i.listener.Receive()
i.data <- m
}
}
func (i *RAWInput) String() string {
return "RAW Socket input: " + i.address
}
func (i *RAWInput) Close() {
i.listener.Close()
close(i.quit)
}