71 lines
1.5 KiB
Go
71 lines
1.5 KiB
Go
package relay
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import (
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"context"
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"fmt"
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"net"
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"time"
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"github.com/go-gost/gost/pkg/chain"
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util_relay "github.com/go-gost/gost/pkg/common/util/relay"
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"github.com/go-gost/gost/pkg/handler"
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"github.com/go-gost/relay"
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)
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func (h *relayHandler) handleConnect(ctx context.Context, conn net.Conn, network, address string) {
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h.logger = h.logger.WithFields(map[string]interface{}{
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"dst": fmt.Sprintf("%s/%s", address, network),
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"cmd": "connect",
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})
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h.logger.Infof("%s >> %s", conn.RemoteAddr(), address)
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resp := relay.Response{
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Version: relay.Version1,
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Status: relay.StatusOK,
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}
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if address == "" {
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resp.Status = relay.StatusBadRequest
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resp.WriteTo(conn)
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h.logger.Error("target not specified")
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return
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}
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if h.bypass != nil && h.bypass.Contains(address) {
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h.logger.Info("bypass: ", address)
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resp.Status = relay.StatusForbidden
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resp.WriteTo(conn)
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return
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}
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r := (&chain.Router{}).
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WithChain(h.chain).
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WithRetry(h.md.retryCount).
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WithLogger(h.logger)
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cc, err := r.Dial(ctx, network, address)
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if err != nil {
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resp.Status = relay.StatusNetworkUnreachable
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resp.WriteTo(conn)
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return
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}
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defer cc.Close()
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if _, err := resp.WriteTo(conn); err != nil {
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h.logger.Error(err)
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}
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if network == "udp" {
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conn = util_relay.UDPTunConn(conn)
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}
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t := time.Now()
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h.logger.Infof("%s <-> %s", conn.RemoteAddr(), address)
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handler.Transport(conn, cc)
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h.logger.
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WithFields(map[string]interface{}{
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"duration": time.Since(t),
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}).
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Infof("%s >-< %s", conn.RemoteAddr(), address)
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}
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