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fix http handler for tunnel

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This commit is contained in:
ginuerzh
2023-10-16 23:53:58 +08:00
parent 5dfbb59f8a
commit bf5311ddc3
3 changed files with 61 additions and 118 deletions
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84
handler/forward/remote/handler.go
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@ -11,7 +11,6 @@ import (
"net/http"
"net/http/httputil"
"strconv"
"sync"
"time"
"github.com/go-gost/core/chain"
@ -183,7 +182,6 @@ func (h *forwardHandler) Handle(ctx context.Context, conn net.Conn, opts ...hand
func (h *forwardHandler) handleHTTP(ctx context.Context, rw io.ReadWriter, remoteAddr net.Addr, localAddr net.Addr, log logger.Logger) (err error) {
br := bufio.NewReader(rw)
var connPool sync.Map
for {
resp := &http.Response{
@ -233,47 +231,28 @@ func (h *forwardHandler) handleHTTP(ctx context.Context, rw io.ReadWriter, remot
ctx = auth_util.ContextWithID(ctx, auth_util.ID(id))
}
var cc net.Conn
if v, ok := connPool.Load(target); ok {
cc = v.(net.Conn)
log.Debugf("reuse connection to node %s(%s)", target.Name, target.Addr)
}
if cc == nil {
cc, err = h.router.Dial(ctx, "tcp", target.Addr)
if err != nil {
// TODO: the router itself may be failed due to the failed node in the router,
// the dead marker may be a wrong operation.
if marker := target.Marker(); marker != nil {
marker.Mark()
}
log.Warnf("connect to node %s(%s) failed: %v", target.Name, target.Addr, err)
return resp.Write(rw)
}
cc, err := h.router.Dial(ctx, "tcp", target.Addr)
if err != nil {
// TODO: the router itself may be failed due to the failed node in the router,
// the dead marker may be a wrong operation.
if marker := target.Marker(); marker != nil {
marker.Reset()
marker.Mark()
}
log.Warnf("connect to node %s(%s) failed: %v", target.Name, target.Addr, err)
return resp.Write(rw)
}
if marker := target.Marker(); marker != nil {
marker.Reset()
}
defer cc.Close()
if tlsSettings := target.Options().TLS; tlsSettings != nil {
cc = tls.Client(cc, &tls.Config{
ServerName: tlsSettings.ServerName,
InsecureSkipVerify: !tlsSettings.Secure,
})
}
log.Debugf("new connection to node %s(%s)", target.Name, target.Addr)
cc = proxyproto.WrapClientConn(h.md.proxyProtocol, remoteAddr, localAddr, cc)
connPool.Store(target, cc)
log.Debugf("new connection to node %s(%s)", target.Name, target.Addr)
go func() {
defer cc.Close()
err := xnet.CopyBuffer(rw, cc, 8192)
if err != nil {
resp.Write(rw)
}
log.Debugf("close connection to node %s(%s), reason: %v", target.Name, target.Addr, err)
connPool.Delete(target)
}()
if tlsSettings := target.Options().TLS; tlsSettings != nil {
cc = tls.Client(cc, &tls.Config{
ServerName: tlsSettings.ServerName,
InsecureSkipVerify: !tlsSettings.Secure,
})
}
if httpSettings := target.Options().HTTP; httpSettings != nil {
@ -289,35 +268,28 @@ func (h *forwardHandler) handleHTTP(ctx context.Context, rw io.ReadWriter, remot
dump, _ := httputil.DumpRequest(req, false)
log.Trace(string(dump))
}
cc = proxyproto.WrapClientConn(h.md.proxyProtocol, remoteAddr, localAddr, cc)
if err := req.Write(cc); err != nil {
log.Warnf("send request to node %s(%s) failed: %v", target.Name, target.Addr, err)
log.Warnf("send request to node %s(%s): %v", target.Name, target.Addr, err)
return resp.Write(rw)
}
if req.Header.Get("Upgrade") == "websocket" {
err := xnet.CopyBuffer(cc, br, 8192)
if err == nil {
err = io.EOF
}
return err
res, err := http.ReadResponse(bufio.NewReader(cc), req)
if err != nil {
log.Warnf("read response from node %s(%s): %v", target.Name, target.Addr, err)
return resp.Write(rw)
}
defer res.Body.Close()
// cc.SetReadDeadline(time.Now().Add(10 * time.Second))
return nil
return res.Write(rw)
}()
if err != nil {
break
}
}
connPool.Range(func(key, value any) bool {
if value != nil {
value.(net.Conn).Close()
}
return true
})
return
}