first commit

internal/httputils/http.go

@@ -0,0 +1,66 @@
+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
+}