mihomo/constant/metadata.go
2020-01-31 14:43:54 +08:00

97 lines
1.6 KiB
Go

package constant
import (
"encoding/json"
"net"
"strconv"
)
// Socks addr type
const (
AtypIPv4 = 1
AtypDomainName = 3
AtypIPv6 = 4
TCP NetWork = iota
UDP
HTTP Type = iota
HTTPCONNECT
SOCKS
REDIR
)
type NetWork int
func (n *NetWork) String() string {
if *n == TCP {
return "tcp"
}
return "udp"
}
func (n NetWork) MarshalJSON() ([]byte, error) {
return json.Marshal(n.String())
}
type Type int
func (t Type) String() string {
switch t {
case HTTP:
return "HTTP"
case HTTPCONNECT:
return "HTTP Connect"
case SOCKS:
return "Socks5"
case REDIR:
return "Redir"
default:
return "Unknown"
}
}
func (t Type) MarshalJSON() ([]byte, error) {
return json.Marshal(t.String())
}
// Metadata is used to store connection address
type Metadata struct {
NetWork NetWork `json:"network"`
Type Type `json:"type"`
SrcIP net.IP `json:"sourceIP"`
DstIP net.IP `json:"destinationIP"`
SrcPort string `json:"sourcePort"`
DstPort string `json:"destinationPort"`
AddrType int `json:"-"`
Host string `json:"host"`
}
func (m *Metadata) RemoteAddress() string {
return net.JoinHostPort(m.String(), m.DstPort)
}
func (m *Metadata) UDPAddr() *net.UDPAddr {
if m.NetWork != UDP || m.DstIP == nil {
return nil
}
port, _ := strconv.Atoi(m.DstPort)
return &net.UDPAddr{
IP: m.DstIP,
Port: port,
}
}
func (m *Metadata) String() string {
if m.Host != "" {
return m.Host
} else if m.DstIP != nil {
return m.DstIP.String()
} else {
return "<nil>"
}
}
func (m *Metadata) Valid() bool {
return m.Host != "" || m.DstIP != nil
}