deps: update grpc-middleware to v2 (#2286)

Signed-off-by: Daniel Weiße <dw@edgeless.systems>

internal/logger/grpclogger.go

@@ -0,0 +1,81 @@
+/*
+Copyright (c) Edgeless Systems GmbH
+
+SPDX-License-Identifier: AGPL-3.0-only
+*/
+
+package logger
+
+import (
+	"fmt"
+
+	"go.uber.org/zap"
+	"google.golang.org/grpc/grpclog"
+)
+
+func replaceGRPCLogger(log *zap.Logger) {
+	gl := &grpcLogger{
+		logger:    log.With(zap.String("system", "grpc"), zap.Bool("grpc_log", true)).WithOptions(zap.AddCallerSkip(2)),
+		verbosity: 0,
+	}
+	grpclog.SetLoggerV2(gl)
+}
+
+type grpcLogger struct {
+	logger    *zap.Logger
+	verbosity int
+}
+
+func (l *grpcLogger) Info(args ...interface{}) {
+	l.logger.Info(fmt.Sprint(args...))
+}
+
+func (l *grpcLogger) Infoln(args ...interface{}) {
+	l.logger.Info(fmt.Sprint(args...))
+}
+
+func (l *grpcLogger) Infof(format string, args ...interface{}) {
+	l.logger.Info(fmt.Sprintf(format, args...))
+}
+
+func (l *grpcLogger) Warning(args ...interface{}) {
+	l.logger.Warn(fmt.Sprint(args...))
+}
+
+func (l *grpcLogger) Warningln(args ...interface{}) {
+	l.logger.Warn(fmt.Sprint(args...))
+}
+
+func (l *grpcLogger) Warningf(format string, args ...interface{}) {
+	l.logger.Warn(fmt.Sprintf(format, args...))
+}
+
+func (l *grpcLogger) Error(args ...interface{}) {
+	l.logger.Error(fmt.Sprint(args...))
+}
+
+func (l *grpcLogger) Errorln(args ...interface{}) {
+	l.logger.Error(fmt.Sprint(args...))
+}
+
+func (l *grpcLogger) Errorf(format string, args ...interface{}) {
+	l.logger.Error(fmt.Sprintf(format, args...))
+}
+
+func (l *grpcLogger) Fatal(args ...interface{}) {
+	l.logger.Fatal(fmt.Sprint(args...))
+}
+
+func (l *grpcLogger) Fatalln(args ...interface{}) {
+	l.logger.Fatal(fmt.Sprint(args...))
+}
+
+func (l *grpcLogger) Fatalf(format string, args ...interface{}) {
+	l.logger.Fatal(fmt.Sprintf(format, args...))
+}
+
+func (l *grpcLogger) V(level int) bool {
+	// Check whether the verbosity of the current log ('level') is within the specified threshold ('l.verbosity').
+	// As in https://github.com/grpc/grpc-go/blob/41e044e1c82fcf6a5801d6cbd7ecf952505eecb1/grpclog/loggerv2.go#L199-L201.
+	return level <= l.verbosity
+}