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Add GenericCLF log format for access logs

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Simon Delicata 2025-09-08 11:24:05 +02:00 • committed by GitHub
parent a051f20876
commit e2282b1379
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11 changed files with 234 additions and 18 deletions
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29
pkg/middlewares/accesslog/logger_formatters.go
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@ -52,6 +52,35 @@ func (f *CommonLogFormatter) Format(entry *logrus.Entry) ([]byte, error) {
return b.Bytes(), err
}
// GenericCLFLogFormatter provides formatting in the generic CLF log format.
type GenericCLFLogFormatter struct{}
// Format formats the log entry in the generic CLF log format.
func (f *GenericCLFLogFormatter) Format(entry *logrus.Entry) ([]byte, error) {
b := &bytes.Buffer{}
timestamp := defaultValue
if v, ok := entry.Data[StartUTC]; ok {
timestamp = v.(time.Time).Format(commonLogTimeFormat)
} else if v, ok := entry.Data[StartLocal]; ok {
timestamp = v.(time.Time).Local().Format(commonLogTimeFormat)
}
_, err := fmt.Fprintf(b, "%s - %s [%s] \"%s %s %s\" %v %v %s %s\n",
toLog(entry.Data, ClientHost, defaultValue, false),
toLog(entry.Data, ClientUsername, defaultValue, false),
timestamp,
toLog(entry.Data, RequestMethod, defaultValue, false),
toLog(entry.Data, RequestPath, defaultValue, false),
toLog(entry.Data, RequestProtocol, defaultValue, false),
toLog(entry.Data, DownstreamStatus, defaultValue, true),
toLog(entry.Data, DownstreamContentSize, defaultValue, true),
toLog(entry.Data, "request_Referer", `"-"`, true),
toLog(entry.Data, "request_User-Agent", `"-"`, true))
return b.Bytes(), err
}
func toLog(fields logrus.Fields, key, defaultValue string, quoted bool) interface{} {
if v, ok := fields[key]; ok {
if v == nil {