// AccessLog is access log middleware
//
// Example:
// Jan _2 15:04:05.000000000: "GET /api/v1/user HTTP/1.1" [200] 1024
// Content-Type: application/json
// Access-Token: token
// {"json_key":"json_value"}
func AccessLog(logger traceLogger, concernedHeaders ...string) gin.HandlerFunc {
return func(c *gin.Context) {
logid := getLogid(c)
c.Next()
req := c.Request
logFormat := `%s: "%s %s %s" [%d] %d`
args := []interface{}{
logid,
req.Method, req.URL, req.Proto,
c.Writer.Status(), c.Writer.Size(),
}
s := stringer.New()
s.FormatPrefix = "\t"
existHeaders := false
for _, key := range concernedHeaders {
if header := req.Header.Get(key); header != "" {
existHeaders = true
s.Add(key, header)
}
}
if existHeaders {
logFormat += "\n%s"
args = append(args, s.String())
}
// log request body if method is POST PUT
switch req.Method {
case "POST", "PUT":
body, _ := ioutil.ReadAll(req.Body)
logFormat += "\n%s"
args = append(args, body)
}
logger.Tracef(logFormat, args...)
}
}
func (a Authtoken) String() string {
s := stringer.New()
s.Add("username", a.Username)
s.Add("email", a.Email)
return s.String()
}