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
|
package bsshchat
import (
"bufio"
"io"
"strings"
"github.com/42wim/matterbridge/bridge"
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/bridge/helper"
"github.com/shazow/ssh-chat/sshd"
)
type Bsshchat struct {
r *bufio.Scanner
w io.WriteCloser
*bridge.Config
}
func New(cfg *bridge.Config) bridge.Bridger {
return &Bsshchat{Config: cfg}
}
func (b *Bsshchat) Connect() error {
b.Log.Infof("Connecting %s", b.GetString("Server"))
// connHandler will be called by 'sshd.ConnectShell()' below
// once the connection is established in order to handle it.
connErr := make(chan error, 1) // Needs to be buffered.
connSignal := make(chan struct{})
connHandler := func(r io.Reader, w io.WriteCloser) error {
b.r = bufio.NewScanner(r)
b.r.Scan()
b.w = w
if _, err := b.w.Write([]byte("/theme mono\r\n/quiet\r\n")); err != nil {
return err
}
close(connSignal) // Connection is established so we can signal the success.
return b.handleSSHChat()
}
go func() {
// As a successful connection will result in this returning after the Connection
// method has already returned point we NEED to have a buffered channel to still
// be able to write.
connErr <- sshd.ConnectShell(b.GetString("Server"), b.GetString("Nick"), connHandler)
}()
select {
case err := <-connErr:
b.Log.Error("Connection failed")
return err
case <-connSignal:
}
b.Log.Info("Connection succeeded")
return nil
}
func (b *Bsshchat) Disconnect() error {
return nil
}
func (b *Bsshchat) JoinChannel(channel config.ChannelInfo) error {
return nil
}
func (b *Bsshchat) Send(msg config.Message) (string, error) {
// ignore delete messages
if msg.Event == config.EventMsgDelete {
return "", nil
}
b.Log.Debugf("=> Receiving %#v", msg)
if msg.Extra != nil {
for _, rmsg := range helper.HandleExtra(&msg, b.General) {
if _, err := b.w.Write([]byte(rmsg.Username + rmsg.Text + "\r\n")); err != nil {
b.Log.Errorf("Could not send extra message: %#v", err)
}
}
if len(msg.Extra["file"]) > 0 {
return b.handleUploadFile(&msg)
}
}
_, err := b.w.Write([]byte(msg.Username + msg.Text + "\r\n"))
return "", err
}
/*
func (b *Bsshchat) sshchatKeepAlive() chan bool {
done := make(chan bool)
go func() {
ticker := time.NewTicker(90 * time.Second)
defer ticker.Stop()
for {
select {
case <-ticker.C:
b.Log.Debugf("PING")
err := b.xc.PingC2S("", "")
if err != nil {
b.Log.Debugf("PING failed %#v", err)
}
case <-done:
return
}
}
}()
return done
}
*/
func stripPrompt(s string) string {
pos := strings.LastIndex(s, "\033[K")
if pos < 0 {
return s
}
return s[pos+3:]
}
func (b *Bsshchat) handleSSHChat() error {
/*
done := b.sshchatKeepAlive()
defer close(done)
*/
wait := true
for {
if b.r.Scan() {
// ignore messages from ourselves
if !strings.Contains(b.r.Text(), "\033[K") {
continue
}
if strings.Contains(b.r.Text(), "Rate limiting is in effect") {
continue
}
// skip our own messages
if !strings.HasPrefix(b.r.Text(), "["+b.GetString("Nick")+"] \x1b") {
continue
}
res := strings.Split(stripPrompt(b.r.Text()), ":")
if res[0] == "-> Set theme" {
wait = false
b.Log.Debugf("mono found, allowing")
continue
}
if !wait {
b.Log.Debugf("<= Message %#v", res)
rmsg := config.Message{Username: res[0], Text: strings.TrimSpace(strings.Join(res[1:], ":")), Channel: "sshchat", Account: b.Account, UserID: "nick"}
b.Remote <- rmsg
}
}
}
}
func (b *Bsshchat) handleUploadFile(msg *config.Message) (string, error) {
for _, f := range msg.Extra["file"] {
fi := f.(config.FileInfo)
if fi.Comment != "" {
msg.Text += fi.Comment + ": "
}
if fi.URL != "" {
msg.Text = fi.URL
if fi.Comment != "" {
msg.Text = fi.Comment + ": " + fi.URL
}
}
if _, err := b.w.Write([]byte(msg.Username + msg.Text + "\r\n")); err != nil {
b.Log.Errorf("Could not send file message: %#v", err)
}
}
return "", nil
}
|
