rebase: bump google.golang.org/grpc from 1.49.0 to 1.50.1

Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.49.0 to 1.50.1.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.49.0...v1.50.1)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

vendor/google.golang.org/grpc/server.go

@@ -73,12 +73,14 @@ func init() {
 	internal.DrainServerTransports = func(srv *Server, addr string) {
 		srv.drainServerTransports(addr)
 	}
-	internal.AddExtraServerOptions = func(opt ...ServerOption) {
-		extraServerOptions = opt
+	internal.AddGlobalServerOptions = func(opt ...ServerOption) {
+		extraServerOptions = append(extraServerOptions, opt...)
 	}
-	internal.ClearExtraServerOptions = func() {
+	internal.ClearGlobalServerOptions = func() {
 		extraServerOptions = nil
 	}
+	internal.BinaryLogger = binaryLogger
+	internal.JoinServerOptions = newJoinServerOption
 }
 
 var statusOK = status.New(codes.OK, "")
@@ -155,6 +157,7 @@ type serverOptions struct {
 	streamInt             StreamServerInterceptor
 	chainUnaryInts        []UnaryServerInterceptor
 	chainStreamInts       []StreamServerInterceptor
+	binaryLogger          binarylog.Logger
 	inTapHandle           tap.ServerInHandle
 	statsHandlers         []stats.Handler
 	maxConcurrentStreams  uint32
@@ -214,6 +217,22 @@ func newFuncServerOption(f func(*serverOptions)) *funcServerOption {
 	}
 }
 
+// joinServerOption provides a way to combine arbitrary number of server
+// options into one.
+type joinServerOption struct {
+	opts []ServerOption
+}
+
+func (mdo *joinServerOption) apply(do *serverOptions) {
+	for _, opt := range mdo.opts {
+		opt.apply(do)
+	}
+}
+
+func newJoinServerOption(opts ...ServerOption) ServerOption {
+	return &joinServerOption{opts: opts}
+}
+
 // WriteBufferSize determines how much data can be batched before doing a write on the wire.
 // The corresponding memory allocation for this buffer will be twice the size to keep syscalls low.
 // The default value for this buffer is 32KB.
@@ -452,6 +471,14 @@ func StatsHandler(h stats.Handler) ServerOption {
 	})
 }
 
+// binaryLogger returns a ServerOption that can set the binary logger for the
+// server.
+func binaryLogger(bl binarylog.Logger) ServerOption {
+	return newFuncServerOption(func(o *serverOptions) {
+		o.binaryLogger = bl
+	})
+}
+
 // UnknownServiceHandler returns a ServerOption that allows for adding a custom
 // unknown service handler. The provided method is a bidi-streaming RPC service
 // handler that will be invoked instead of returning the "unimplemented" gRPC
@@ -1199,9 +1226,16 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 			}
 		}()
 	}
-
-	binlog := binarylog.GetMethodLogger(stream.Method())
-	if binlog != nil {
+	var binlogs []binarylog.MethodLogger
+	if ml := binarylog.GetMethodLogger(stream.Method()); ml != nil {
+		binlogs = append(binlogs, ml)
+	}
+	if s.opts.binaryLogger != nil {
+		if ml := s.opts.binaryLogger.GetMethodLogger(stream.Method()); ml != nil {
+			binlogs = append(binlogs, ml)
+		}
+	}
+	if len(binlogs) != 0 {
 		ctx := stream.Context()
 		md, _ := metadata.FromIncomingContext(ctx)
 		logEntry := &binarylog.ClientHeader{
@@ -1221,7 +1255,9 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 		if peer, ok := peer.FromContext(ctx); ok {
 			logEntry.PeerAddr = peer.Addr
 		}
-		binlog.Log(logEntry)
+		for _, binlog := range binlogs {
+			binlog.Log(logEntry)
+		}
 	}
 
 	// comp and cp are used for compression.  decomp and dc are used for
@@ -1261,7 +1297,7 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 	}
 
 	var payInfo *payloadInfo
-	if len(shs) != 0 || binlog != nil {
+	if len(shs) != 0 || len(binlogs) != 0 {
 		payInfo = &payloadInfo{}
 	}
 	d, err := recvAndDecompress(&parser{r: stream}, stream, dc, s.opts.maxReceiveMessageSize, payInfo, decomp)
@@ -1287,10 +1323,13 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 				Length:     len(d),
 			})
 		}
-		if binlog != nil {
-			binlog.Log(&binarylog.ClientMessage{
+		if len(binlogs) != 0 {
+			cm := &binarylog.ClientMessage{
 				Message: d,
-			})
+			}
+			for _, binlog := range binlogs {
+				binlog.Log(cm)
+			}
 		}
 		if trInfo != nil {
 			trInfo.tr.LazyLog(&payload{sent: false, msg: v}, true)
@@ -1314,18 +1353,24 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 		if e := t.WriteStatus(stream, appStatus); e != nil {
 			channelz.Warningf(logger, s.channelzID, "grpc: Server.processUnaryRPC failed to write status: %v", e)
 		}
-		if binlog != nil {
+		if len(binlogs) != 0 {
 			if h, _ := stream.Header(); h.Len() > 0 {
 				// Only log serverHeader if there was header. Otherwise it can
 				// be trailer only.
-				binlog.Log(&binarylog.ServerHeader{
+				sh := &binarylog.ServerHeader{
 					Header: h,
-				})
+				}
+				for _, binlog := range binlogs {
+					binlog.Log(sh)
+				}
 			}
-			binlog.Log(&binarylog.ServerTrailer{
+			st := &binarylog.ServerTrailer{
 				Trailer: stream.Trailer(),
 				Err:     appErr,
-			})
+			}
+			for _, binlog := range binlogs {
+				binlog.Log(st)
+			}
 		}
 		return appErr
 	}
@@ -1351,26 +1396,34 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 				panic(fmt.Sprintf("grpc: Unexpected error (%T) from sendResponse: %v", st, st))
 			}
 		}
-		if binlog != nil {
+		if len(binlogs) != 0 {
 			h, _ := stream.Header()
-			binlog.Log(&binarylog.ServerHeader{
+			sh := &binarylog.ServerHeader{
 				Header: h,
-			})
-			binlog.Log(&binarylog.ServerTrailer{
+			}
+			st := &binarylog.ServerTrailer{
 				Trailer: stream.Trailer(),
 				Err:     appErr,
-			})
+			}
+			for _, binlog := range binlogs {
+				binlog.Log(sh)
+				binlog.Log(st)
+			}
 		}
 		return err
 	}
-	if binlog != nil {
+	if len(binlogs) != 0 {
 		h, _ := stream.Header()
-		binlog.Log(&binarylog.ServerHeader{
+		sh := &binarylog.ServerHeader{
 			Header: h,
-		})
-		binlog.Log(&binarylog.ServerMessage{
+		}
+		sm := &binarylog.ServerMessage{
 			Message: reply,
-		})
+		}
+		for _, binlog := range binlogs {
+			binlog.Log(sh)
+			binlog.Log(sm)
+		}
 	}
 	if channelz.IsOn() {
 		t.IncrMsgSent()
@@ -1382,11 +1435,14 @@ func (s *Server) processUnaryRPC(t transport.ServerTransport, stream *transport.
 	// Should the logging be in WriteStatus?  Should we ignore the WriteStatus
 	// error or allow the stats handler to see it?
 	err = t.WriteStatus(stream, statusOK)
-	if binlog != nil {
-		binlog.Log(&binarylog.ServerTrailer{
+	if len(binlogs) != 0 {
+		st := &binarylog.ServerTrailer{
 			Trailer: stream.Trailer(),
 			Err:     appErr,
-		})
+		}
+		for _, binlog := range binlogs {
+			binlog.Log(st)
+		}
 	}
 	return err
 }
@@ -1499,8 +1555,15 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
 		}()
 	}
 
-	ss.binlog = binarylog.GetMethodLogger(stream.Method())
-	if ss.binlog != nil {
+	if ml := binarylog.GetMethodLogger(stream.Method()); ml != nil {
+		ss.binlogs = append(ss.binlogs, ml)
+	}
+	if s.opts.binaryLogger != nil {
+		if ml := s.opts.binaryLogger.GetMethodLogger(stream.Method()); ml != nil {
+			ss.binlogs = append(ss.binlogs, ml)
+		}
+	}
+	if len(ss.binlogs) != 0 {
 		md, _ := metadata.FromIncomingContext(ctx)
 		logEntry := &binarylog.ClientHeader{
 			Header:     md,
@@ -1519,7 +1582,9 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
 		if peer, ok := peer.FromContext(ss.Context()); ok {
 			logEntry.PeerAddr = peer.Addr
 		}
-		ss.binlog.Log(logEntry)
+		for _, binlog := range ss.binlogs {
+			binlog.Log(logEntry)
+		}
 	}
 
 	// If dc is set and matches the stream's compression, use it.  Otherwise, try
@@ -1585,11 +1650,14 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
 			ss.mu.Unlock()
 		}
 		t.WriteStatus(ss.s, appStatus)
-		if ss.binlog != nil {
-			ss.binlog.Log(&binarylog.ServerTrailer{
+		if len(ss.binlogs) != 0 {
+			st := &binarylog.ServerTrailer{
 				Trailer: ss.s.Trailer(),
 				Err:     appErr,
-			})
+			}
+			for _, binlog := range ss.binlogs {
+				binlog.Log(st)
+			}
 		}
 		// TODO: Should we log an error from WriteStatus here and below?
 		return appErr
@@ -1600,11 +1668,14 @@ func (s *Server) processStreamingRPC(t transport.ServerTransport, stream *transp
 		ss.mu.Unlock()
 	}
 	err = t.WriteStatus(ss.s, statusOK)
-	if ss.binlog != nil {
-		ss.binlog.Log(&binarylog.ServerTrailer{
+	if len(ss.binlogs) != 0 {
+		st := &binarylog.ServerTrailer{
 			Trailer: ss.s.Trailer(),
 			Err:     appErr,
-		})
+		}
+		for _, binlog := range ss.binlogs {
+			binlog.Log(st)
+		}
 	}
 	return err
 }