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Fix grpc lite transport encoding

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世界 2024-01-01 16:13:50 +08:00
parent 87c6fd4c0f
commit c506255e0f
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GPG key ID: CD109927C34A63C4
1 changed files with 19 additions and 18 deletions
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37
transport/v2raygrpclite/conn.go
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@ -2,19 +2,16 @@ package v2raygrpclite
import ( import (
std_bufio "bufio" std_bufio "bufio"
"bytes"
"encoding/binary" "encoding/binary"
"io" "io"
"net" "net"
"net/http" "net/http"
"os" "os"
"sync"
"time" "time"
"github.com/sagernet/sing/common" "github.com/sagernet/sing/common"
"github.com/sagernet/sing/common/baderror" "github.com/sagernet/sing/common/baderror"
"github.com/sagernet/sing/common/buf" "github.com/sagernet/sing/common/buf"
"github.com/sagernet/sing/common/bufio"
M "github.com/sagernet/sing/common/metadata" M "github.com/sagernet/sing/common/metadata"
"github.com/sagernet/sing/common/rw" "github.com/sagernet/sing/common/rw"
) )
@ -30,7 +27,6 @@ type GunConn struct {
create chan struct{} create chan struct{}
err error err error
readRemaining int readRemaining int
writeAccess sync.Mutex
} }
func newGunConn(reader io.Reader, writer io.Writer, flusher http.Flusher) *GunConn { func newGunConn(reader io.Reader, writer io.Writer, flusher http.Flusher) *GunConn {
@ -100,19 +96,22 @@ func (c *GunConn) read(b []byte) (n int, err error) {
} }
func (c *GunConn) Write(b []byte) (n int, err error) { func (c *GunConn) Write(b []byte) (n int, err error) {
protobufHeader := [1 + binary.MaxVarintLen64]byte{0x0A} varLen := rw.UVariantLen(uint64(len(b)))
varuintLen := binary.PutUvarint(protobufHeader[1:], uint64(len(b))) buffer := buf.NewSize(6 + varLen + len(b))
grpcHeader := buf.Get(5) header := buffer.Extend(6 + varLen)
grpcPayloadLen := uint32(1 + varuintLen + len(b)) header[0] = 0x00
binary.BigEndian.PutUint32(grpcHeader[1:5], grpcPayloadLen) binary.BigEndian.PutUint32(header[1:5], uint32(1+varLen+len(b)))
c.writeAccess.Lock() header[5] = 0x0A
_, err = bufio.Copy(c.writer, io.MultiReader(bytes.NewReader(grpcHeader), bytes.NewReader(protobufHeader[:varuintLen+1]), bytes.NewReader(b))) binary.PutUvarint(header[6:], uint64(len(b)))
c.writeAccess.Unlock() common.Must1(buffer.Write(b))
buf.Put(grpcHeader) _, err = c.writer.Write(buffer.Bytes())
if err == nil && c.flusher != nil { if err != nil {
return 0, baderror.WrapH2(err)
}
if c.flusher != nil {
c.flusher.Flush() c.flusher.Flush()
} }
return len(b), baderror.WrapH2(err) return len(b), nil
} }
func (c *GunConn) WriteBuffer(buffer *buf.Buffer) error { func (c *GunConn) WriteBuffer(buffer *buf.Buffer) error {
@ -120,16 +119,18 @@ func (c *GunConn) WriteBuffer(buffer *buf.Buffer) error {
dataLen := buffer.Len() dataLen := buffer.Len()
varLen := rw.UVariantLen(uint64(dataLen)) varLen := rw.UVariantLen(uint64(dataLen))
header := buffer.ExtendHeader(6 + varLen) header := buffer.ExtendHeader(6 + varLen)
_ = header[6]
header[0] = 0x00 header[0] = 0x00
binary.BigEndian.PutUint32(header[1:5], uint32(1+varLen+dataLen)) binary.BigEndian.PutUint32(header[1:5], uint32(1+varLen+dataLen))
header[5] = 0x0A header[5] = 0x0A
binary.PutUvarint(header[6:], uint64(dataLen)) binary.PutUvarint(header[6:], uint64(dataLen))
err := rw.WriteBytes(c.writer, buffer.Bytes()) err := rw.WriteBytes(c.writer, buffer.Bytes())
if err == nil && c.flusher != nil { if err != nil {
return baderror.WrapH2(err)
}
if c.flusher != nil {
c.flusher.Flush() c.flusher.Flush()
} }
return baderror.WrapH2(err) return nil
} }
func (c *GunConn) FrontHeadroom() int { func (c *GunConn) FrontHeadroom() int {