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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"
"fmt"
"log"
"github.com/go-chi/chi/v5/middleware"
internallog "github.com/sigstore/rekor/pkg/internal/log"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
// Logger set the default logger to development mode
var Logger *zap.SugaredLogger
var traceStringPrefix string
func init() {
ConfigureLogger("dev", "")
}
func ConfigureLogger(logType, traceStrPrefix string) {
var cfg zap.Config
if logType == "prod" {
cfg = zap.NewProductionConfig()
cfg.EncoderConfig.LevelKey = "severity"
cfg.EncoderConfig.MessageKey = "message"
cfg.EncoderConfig.TimeKey = "time"
cfg.EncoderConfig.EncodeLevel = encodeLevel()
cfg.EncoderConfig.EncodeTime = zapcore.RFC3339NanoTimeEncoder
cfg.EncoderConfig.EncodeDuration = zapcore.SecondsDurationEncoder
cfg.EncoderConfig.EncodeCaller = zapcore.FullCallerEncoder
} else {
cfg = zap.NewDevelopmentConfig()
cfg.EncoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder
}
logger, err := cfg.Build()
if err != nil {
log.Fatalln("createLogger", err)
}
Logger = logger.Sugar()
internallog.Logger = Logger
if traceStrPrefix != "" {
traceStringPrefix = traceStrPrefix
}
}
func encodeLevel() zapcore.LevelEncoder {
return func(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
switch l {
case zapcore.DebugLevel:
enc.AppendString("DEBUG")
case zapcore.InfoLevel:
enc.AppendString("INFO")
case zapcore.WarnLevel:
enc.AppendString("WARNING")
case zapcore.ErrorLevel:
enc.AppendString("ERROR")
case zapcore.DPanicLevel:
enc.AppendString("CRITICAL")
case zapcore.PanicLevel:
enc.AppendString("ALERT")
case zapcore.FatalLevel:
enc.AppendString("EMERGENCY")
}
}
}
var CliLogger = createCliLogger()
func createCliLogger() *zap.SugaredLogger {
cfg := zap.NewDevelopmentConfig()
cfg.EncoderConfig.TimeKey = ""
cfg.EncoderConfig.LevelKey = ""
cfg.DisableCaller = true
cfg.DisableStacktrace = true
logger, err := cfg.Build()
if err != nil {
log.Fatalln("createLogger", err)
}
return logger.Sugar()
}
func WithRequestID(ctx context.Context, id string) context.Context {
return context.WithValue(ctx, middleware.RequestIDKey, id)
}
type operation struct {
id string
}
func (o operation) MarshalLogObject(enc zapcore.ObjectEncoder) error {
enc.AddString("id", o.id)
return nil
}
func ContextLogger(ctx context.Context) *zap.SugaredLogger {
proposedLogger := Logger
if ctx != nil {
if ctxRequestID, ok := ctx.Value(middleware.RequestIDKey).(string); ok {
requestID := operation{ctxRequestID}
proposedLogger = proposedLogger.With(zap.Object("operation", requestID))
if traceStringPrefix != "" {
proposedLogger = proposedLogger.With(zap.String("logging.googleapis.com/trace", fmt.Sprintf("%s/%s", traceStringPrefix, ctxRequestID)))
}
}
}
return proposedLogger
}
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