1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
package logging
import (
"encoding/json"
"net/http"
"strings"
"github.com/pkg/errors"
"github.com/sirupsen/logrus"
)
// defaultTraceIdHeader is the default header used as a trace id.
const defaultTraceIDHeader = "X-Smallstep-Id"
// ErrorKey defines the key used to log errors.
var ErrorKey = logrus.ErrorKey
// Logger is an alias of logrus.Logger.
type Logger struct {
*logrus.Logger
name string
traceHeader string
}
// loggerConfig represents the configuration options for the logger.
type loggerConfig struct {
Format string `json:"format"`
TraceHeader string `json:"traceHeader"`
}
// New initializes the logger with the given options.
func New(name string, raw json.RawMessage) (*Logger, error) {
var config loggerConfig
if err := json.Unmarshal(raw, &config); err != nil {
return nil, errors.Wrap(err, "error unmarshalling logging attribute")
}
var formatter logrus.Formatter
switch strings.ToLower(config.Format) {
case "", "text":
case "json":
formatter = new(logrus.JSONFormatter)
case "common":
formatter = new(CommonLogFormat)
default:
return nil, errors.Errorf("unsupported logger.format '%s'", config.Format)
}
logger := &Logger{
Logger: logrus.New(),
name: name,
traceHeader: config.TraceHeader,
}
if formatter != nil {
logger.Formatter = formatter
}
return logger, nil
}
// GetImpl returns the real implementation of the logger.
func (l *Logger) GetImpl() *logrus.Logger {
return l.Logger
}
// GetTraceHeader returns the trace header configured
func (l *Logger) GetTraceHeader() string {
if l.traceHeader == "" {
return defaultTraceIDHeader
}
return l.traceHeader
}
// Middleware returns the logger middleware that will trace the request of the
// given handler.
func (l *Logger) Middleware(next http.Handler) http.Handler {
return NewLoggerHandler(l.name, l, next)
}
|
