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// Copyright 2021 The Sigstore Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package log
import (
"context"
"log"
"github.com/goadesign/goa/grpc/middleware"
grpc_zap "github.com/grpc-ecosystem/go-grpc-middleware/logging/zap"
"github.com/grpc-ecosystem/go-grpc-middleware/logging/zap/ctxzap"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/metadata"
)
// Logger set the default logger to development mode
var Logger *zap.SugaredLogger
func init() {
ConfigureLogger("dev")
}
func ConfigureLogger(logType string) {
var cfg zap.Config
if logType == "prod" {
cfg = zap.NewProductionConfig()
cfg.EncoderConfig.LevelKey = "severity"
cfg.EncoderConfig.MessageKey = "message"
} else {
cfg = zap.NewDevelopmentConfig()
cfg.EncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
cfg.OutputPaths = []string{"stdout"}
}
logger, err := cfg.Build()
if err != nil {
log.Fatalln("createLogger", err)
}
Logger = logger.Sugar()
}
var CliLogger = createCliLogger()
func createCliLogger() *zap.SugaredLogger {
cfg := zap.NewDevelopmentConfig()
cfg.EncoderConfig.TimeKey = ""
cfg.EncoderConfig.LevelKey = ""
cfg.DisableCaller = true
logger, err := cfg.Build()
if err != nil {
log.Fatalln("createLogger", err)
}
return logger.Sugar()
}
type requestIDMetadataKeyType string
const (
requestIDMetadataKey requestIDMetadataKeyType = middleware.RequestIDMetadataKey
)
func ContextLogger(ctx context.Context) *zap.SugaredLogger {
proposedLogger := Logger
if ctx != nil {
if md, ok := metadata.FromIncomingContext(ctx); ok {
val := md.Get(string(requestIDMetadataKey))
if len(val) == 1 {
proposedLogger = proposedLogger.With(zap.String("requestID", val[0]))
}
}
}
return proposedLogger
}
func SetupGRPCLogging() (*zap.Logger, []grpc_zap.Option) {
var options []grpc_zap.Option
options = append(options, grpc_zap.WithDecider(func(_ string, _ error) bool {
// TODO: implement filters to eliminate health check log statements
return true
}))
options = append(options, grpc_zap.WithMessageProducer(
func(ctx context.Context, msg string, _ zapcore.Level, code codes.Code, err error, duration zapcore.Field) {
var requestID zap.Field
if md, ok := metadata.FromIncomingContext(ctx); ok {
val := md.Get(string(requestIDMetadataKey))
if len(val) == 1 {
requestID = zap.String("requestID", val[0])
}
}
ctxzap.Extract(ctx).Debug(msg, zap.Error(err), zap.String("grpc.code", code.String()), requestID, duration)
}))
return Logger.Desugar(), options
}
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