59 lines
1.1 KiB
Go
59 lines
1.1 KiB
Go
package shadowsocks
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import (
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"bytes"
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"errors"
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"net"
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"net/url"
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"github.com/Dreamacro/clash/common/pool"
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"github.com/Dreamacro/clash/transport/socks5"
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)
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type packet struct {
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pc net.PacketConn
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rAddr net.Addr
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payload []byte
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bufRef []byte
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}
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func (c *packet) Data() []byte {
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return c.payload
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}
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// WriteBack wirtes UDP packet with source(ip, port) = `addr`
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func (c *packet) WriteBack(b []byte, addr net.Addr) (n int, err error) {
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if addr == nil {
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err = errors.New("address is invalid")
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return
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}
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packet := bytes.Join([][]byte{socks5.ParseAddrToSocksAddr(addr), b}, []byte{})
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return c.pc.WriteTo(packet, c.rAddr)
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}
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// LocalAddr returns the source IP/Port of UDP Packet
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func (c *packet) LocalAddr() net.Addr {
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return c.rAddr
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}
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func (c *packet) Drop() {
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pool.Put(c.bufRef)
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}
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func (c *packet) InAddr() net.Addr {
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return c.pc.LocalAddr()
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}
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func parseSSURL(s string) (addr, cipher, password string, err error) {
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u, err := url.Parse(s)
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if err != nil {
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return
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}
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addr = u.Host
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if u.User != nil {
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cipher = u.User.Username()
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password, _ = u.User.Password()
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}
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return
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}
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