package httputils import ( "fmt" "net/http" "sort" "strings" "github.com/gin-gonic/gin" ) func HeadersToSortedString(headers http.Header) string { var output string keys := make([]string, 0, len(headers)) for k := range headers { keys = append(keys, k) } sort.Strings(keys) for _, k := range keys { if len(headers[k]) > 1 { for _, h := range headers[k] { output += k + ": " + h + "\n" } } else { output += k + ": " + headers[k][0] + "\n" } } return output } func GetLogFormatter(param gin.LogFormatterParams) string { return fmt.Sprintf("%s - [%s] \"%s %s %s\" %d %d %d %s \"%s\" \"%s\" \"%s\"\n", param.ClientIP, param.TimeStamp.Format("02/Nov/2006:15:04:05 -0700"), param.Method, param.Path, param.Request.Proto, param.StatusCode, param.BodySize, param.Latency.Nanoseconds(), normalizeLog(param.Request.Referer()), normalizeLog(param.Request.UserAgent()), normalizeLog(param.Request.Header["X-Forwarded-For"]), normalizeLog(param.ErrorMessage), ) } func normalizeLog(log interface{}) interface{} { switch v := log.(type) { case string: if v == "" { return "-" } case []string: if len(v) == 0 { return "-" } else { return strings.Join(v, ", ") } } return log }