Xray-core/common/protocol/bittorrent/bittorrent.go
2020-12-04 09:36:16 +08:00

33 lines
522 B
Go

package bittorrent
import (
"errors"
"github.com/xtls/xray-core/common"
)
type SniffHeader struct {
}
func (h *SniffHeader) Protocol() string {
return "bittorrent"
}
func (h *SniffHeader) Domain() string {
return ""
}
var errNotBittorrent = errors.New("not bittorrent header")
func SniffBittorrent(b []byte) (*SniffHeader, error) {
if len(b) < 20 {
return nil, common.ErrNoClue
}
if b[0] == 19 && string(b[1:20]) == "BitTorrent protocol" {
return &SniffHeader{}, nil
}
return nil, errNotBittorrent
}