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Add fallback support for v2ray transport

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This commit is contained in:
世界
2023-02-13 05:53:03 +08:00
parent a624cd9b49
commit 2bd91baad0
13 changed files with 132 additions and 85 deletions
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33
transport/v2raygrpclite/server.go
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@@ -26,7 +26,7 @@ import (
var _ adapter.V2RayServerTransport = (*Server)(nil)
type Server struct {
handler N.TCPConnectionHandler
handler adapter.V2RayServerTransportHandler
errorHandler E.Handler
httpServer *http.Server
h2Server *http2.Server
@@ -38,12 +38,11 @@ func (s *Server) Network() []string {
return []string{N.NetworkTCP}
}
func NewServer(ctx context.Context, options option.V2RayGRPCOptions, tlsConfig tls.ServerConfig, handler N.TCPConnectionHandler, errorHandler E.Handler) (*Server, error) {
func NewServer(ctx context.Context, options option.V2RayGRPCOptions, tlsConfig tls.ServerConfig, handler adapter.V2RayServerTransportHandler) (*Server, error) {
server := &Server{
handler: handler,
errorHandler: errorHandler,
path: fmt.Sprintf("/%s/Tun", url.QueryEscape(options.ServiceName)),
h2Server: new(http2.Server),
handler: handler,
path: fmt.Sprintf("/%s/Tun", url.QueryEscape(options.ServiceName)),
h2Server: new(http2.Server),
}
server.httpServer = &http.Server{
Handler: server,
@@ -68,19 +67,15 @@ func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
return
}
if request.URL.Path != s.path {
request.Write(os.Stdout)
writer.WriteHeader(http.StatusNotFound)
s.badRequest(request, E.New("bad path: ", request.URL.Path))
s.fallbackRequest(request.Context(), writer, request, http.StatusNotFound, E.New("bad path: ", request.URL.Path))
return
}
if request.Method != http.MethodPost {
writer.WriteHeader(http.StatusNotFound)
s.badRequest(request, E.New("bad method: ", request.Method))
s.fallbackRequest(request.Context(), writer, request, http.StatusNotFound, E.New("bad method: ", request.Method))
return
}
if ct := request.Header.Get("Content-Type"); !strings.HasPrefix(ct, "application/grpc") {
writer.WriteHeader(http.StatusNotFound)
s.badRequest(request, E.New("bad content type: ", ct))
s.fallbackRequest(request.Context(), writer, request, http.StatusNotFound, E.New("bad content type: ", ct))
return
}
writer.Header().Set("Content-Type", "application/grpc")
@@ -93,8 +88,16 @@ func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) {
conn.CloseWrapper()
}
func (s *Server) badRequest(request *http.Request, err error) {
s.errorHandler.NewError(request.Context(), E.Cause(err, "process connection from ", request.RemoteAddr))
func (s *Server) fallbackRequest(ctx context.Context, writer http.ResponseWriter, request *http.Request, statusCode int, err error) {
conn := v2rayhttp.NewHTTPConn(request.Body, writer)
fErr := s.handler.FallbackConnection(ctx, &conn, M.Metadata{})
if fErr == nil {
return
} else if fErr == os.ErrInvalid {
fErr = nil
}
writer.WriteHeader(statusCode)
s.handler.NewError(request.Context(), E.Cause(E.Errors(err, E.Cause(fErr, "fallback connection")), "process connection from ", request.RemoteAddr))
}
func (s *Server) Serve(listener net.Listener) error {