79 lines
2.0 KiB
Go
79 lines
2.0 KiB
Go
package v5
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"net"
|
|
"time"
|
|
|
|
"github.com/go-gost/core/limiter/traffic"
|
|
"github.com/go-gost/core/logger"
|
|
"github.com/go-gost/core/observer/stats"
|
|
"github.com/go-gost/gosocks5"
|
|
ctxvalue "github.com/go-gost/x/ctx"
|
|
netpkg "github.com/go-gost/x/internal/net"
|
|
"github.com/go-gost/x/limiter/traffic/wrapper"
|
|
stats_wrapper "github.com/go-gost/x/observer/stats/wrapper"
|
|
)
|
|
|
|
func (h *socks5Handler) handleConnect(ctx context.Context, conn net.Conn, network, address string, log logger.Logger) error {
|
|
log = log.WithFields(map[string]any{
|
|
"dst": fmt.Sprintf("%s/%s", address, network),
|
|
"cmd": "connect",
|
|
})
|
|
log.Debugf("%s >> %s", conn.RemoteAddr(), address)
|
|
|
|
if h.options.Bypass != nil && h.options.Bypass.Contains(ctx, network, address) {
|
|
resp := gosocks5.NewReply(gosocks5.NotAllowed, nil)
|
|
log.Trace(resp)
|
|
log.Debug("bypass: ", address)
|
|
return resp.Write(conn)
|
|
}
|
|
|
|
switch h.md.hash {
|
|
case "host":
|
|
ctx = ctxvalue.ContextWithHash(ctx, &ctxvalue.Hash{Source: address})
|
|
}
|
|
|
|
cc, err := h.router.Dial(ctx, network, address)
|
|
if err != nil {
|
|
resp := gosocks5.NewReply(gosocks5.NetUnreachable, nil)
|
|
log.Trace(resp)
|
|
resp.Write(conn)
|
|
return err
|
|
}
|
|
|
|
defer cc.Close()
|
|
|
|
resp := gosocks5.NewReply(gosocks5.Succeeded, nil)
|
|
log.Trace(resp)
|
|
if err := resp.Write(conn); err != nil {
|
|
log.Error(err)
|
|
return err
|
|
}
|
|
|
|
clientID := ctxvalue.ClientIDFromContext(ctx)
|
|
rw := wrapper.WrapReadWriter(h.options.Limiter, conn,
|
|
traffic.NetworkOption(network),
|
|
traffic.AddrOption(address),
|
|
traffic.ClientOption(string(clientID)),
|
|
traffic.SrcOption(conn.RemoteAddr().String()),
|
|
)
|
|
if h.options.Observer != nil {
|
|
pstats := h.stats.Stats(string(clientID))
|
|
pstats.Add(stats.KindTotalConns, 1)
|
|
pstats.Add(stats.KindCurrentConns, 1)
|
|
defer pstats.Add(stats.KindCurrentConns, -1)
|
|
rw = stats_wrapper.WrapReadWriter(rw, pstats)
|
|
}
|
|
|
|
t := time.Now()
|
|
log.Infof("%s <-> %s", conn.RemoteAddr(), address)
|
|
netpkg.Transport(rw, cc)
|
|
log.WithFields(map[string]any{
|
|
"duration": time.Since(t),
|
|
}).Infof("%s >-< %s", conn.RemoteAddr(), address)
|
|
|
|
return nil
|
|
}
|