mirror of
https://github.com/cmz0228/hysteria-dev.git
synced 2025-06-09 13:59:54 +00:00
123 lines
2.8 KiB
Go
123 lines
2.8 KiB
Go
package transport
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import (
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"crypto/tls"
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"fmt"
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"github.com/lucas-clemente/quic-go"
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"github.com/tobyxdd/hysteria/pkg/conns/faketcp"
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"github.com/tobyxdd/hysteria/pkg/conns/udp"
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"github.com/tobyxdd/hysteria/pkg/conns/wechat"
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"github.com/tobyxdd/hysteria/pkg/obfs"
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"net"
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"time"
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)
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type ServerTransport struct {
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Dialer *net.Dialer
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SOCKS5Client *SOCKS5Client
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PrefEnabled bool
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PrefIPv6 bool
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PrefExclusive bool
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}
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type PUDPConn interface {
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ReadFromUDP([]byte) (int, *net.UDPAddr, error)
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WriteToUDP([]byte, *net.UDPAddr) (int, error)
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Close() error
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}
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var DefaultServerTransport = &ServerTransport{
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Dialer: &net.Dialer{
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Timeout: 8 * time.Second,
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},
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PrefEnabled: false,
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}
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func (st *ServerTransport) quicPacketConn(proto string, laddr string, obfs obfs.Obfuscator) (net.PacketConn, error) {
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if len(proto) == 0 || proto == "udp" {
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laddrU, err := net.ResolveUDPAddr("udp", laddr)
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if err != nil {
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return nil, err
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}
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conn, err := net.ListenUDP("udp", laddrU)
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if err != nil {
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return nil, err
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}
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if obfs != nil {
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oc := udp.NewObfsUDPConn(conn, obfs)
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return oc, nil
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} else {
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return conn, nil
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}
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} else if proto == "wechat-video" {
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laddrU, err := net.ResolveUDPAddr("udp", laddr)
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if err != nil {
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return nil, err
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}
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conn, err := net.ListenUDP("udp", laddrU)
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if err != nil {
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return nil, err
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}
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if obfs != nil {
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oc := wechat.NewObfsWeChatUDPConn(conn, obfs)
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return oc, nil
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} else {
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return conn, nil
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}
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} else if proto == "faketcp" {
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conn, err := faketcp.Listen("tcp", laddr)
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if err != nil {
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return nil, err
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}
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if obfs != nil {
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oc := faketcp.NewObfsFakeTCPConn(conn, obfs)
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return oc, nil
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} else {
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return conn, nil
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}
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} else {
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return nil, fmt.Errorf("unsupported protocol: %s", proto)
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}
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}
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func (ct *ServerTransport) QUICListen(proto string, listen string, tlsConfig *tls.Config, quicConfig *quic.Config, obfs obfs.Obfuscator) (quic.Listener, error) {
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pktConn, err := ct.quicPacketConn(proto, listen, obfs)
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if err != nil {
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return nil, err
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}
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l, err := quic.Listen(pktConn, tlsConfig, quicConfig)
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if err != nil {
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_ = pktConn.Close()
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return nil, err
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}
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return l, nil
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}
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func (ct *ServerTransport) ResolveIPAddr(address string) (*net.IPAddr, error) {
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if ct.PrefEnabled {
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return resolveIPAddrWithPreference(address, ct.PrefIPv6, ct.PrefExclusive)
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} else {
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return net.ResolveIPAddr("ip", address)
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}
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}
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func (ct *ServerTransport) DialTCP(raddr *net.TCPAddr) (*net.TCPConn, error) {
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if ct.SOCKS5Client != nil {
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return ct.SOCKS5Client.DialTCP(raddr)
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} else {
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conn, err := ct.Dialer.Dial("tcp", raddr.String())
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if err != nil {
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return nil, err
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}
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return conn.(*net.TCPConn), nil
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}
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}
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func (ct *ServerTransport) ListenUDP() (PUDPConn, error) {
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if ct.SOCKS5Client != nil {
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return ct.SOCKS5Client.ListenUDP()
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} else {
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return net.ListenUDP("udp", nil)
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}
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}
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