mirror of https://github.com/portainer/portainer
60 lines
1.1 KiB
Go
60 lines
1.1 KiB
Go
package websocket
|
|
|
|
import (
|
|
"bufio"
|
|
"github.com/gorilla/websocket"
|
|
"net"
|
|
"unicode/utf8"
|
|
)
|
|
|
|
func streamFromWebsocketConnToTCPConn(websocketConn *websocket.Conn, tcpConn net.Conn, errorChan chan error) {
|
|
for {
|
|
_, in, err := websocketConn.ReadMessage()
|
|
if err != nil {
|
|
errorChan <- err
|
|
break
|
|
}
|
|
|
|
_, err = tcpConn.Write(in)
|
|
if err != nil {
|
|
errorChan <- err
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
func streamFromTCPConnToWebsocketConn(websocketConn *websocket.Conn, br *bufio.Reader, errorChan chan error) {
|
|
for {
|
|
out := make([]byte, 2048)
|
|
_, err := br.Read(out)
|
|
if err != nil {
|
|
errorChan <- err
|
|
break
|
|
}
|
|
|
|
processedOutput := validString(string(out[:]))
|
|
err = websocketConn.WriteMessage(websocket.TextMessage, []byte(processedOutput))
|
|
if err != nil {
|
|
errorChan <- err
|
|
break
|
|
}
|
|
}
|
|
}
|
|
|
|
func validString(s string) string {
|
|
if !utf8.ValidString(s) {
|
|
v := make([]rune, 0, len(s))
|
|
for i, r := range s {
|
|
if r == utf8.RuneError {
|
|
_, size := utf8.DecodeRuneInString(s[i:])
|
|
if size == 1 {
|
|
continue
|
|
}
|
|
}
|
|
v = append(v, r)
|
|
}
|
|
s = string(v)
|
|
}
|
|
return s
|
|
}
|