refactor: build storage key (#1326)

* refactor build storage key

* sort imports

* use gofmt to format code

server/resource.go

@@ -8,6 +8,7 @@ import (
 	"net/http"
 	"net/url"
 	"path"
+	"regexp"
 	"strconv"
 	"strings"
 	"time"
@@ -24,6 +25,8 @@ const (
 	maxFileSize = 32 << 20
 )
 
+var fileKeyPattern = regexp.MustCompile(`\{[a-z]{1,9}\}`)
+
 func (s *Server) registerResourceRoutes(g *echo.Group) {
 	g.POST("/resource", func(c echo.Context) error {
 		ctx := c.Request().Context()
@@ -136,22 +139,39 @@ func (s *Server) registerResourceRoutes(g *echo.Group) {
 			if storage.Type == api.StorageS3 {
 				s3Config := storage.Config.S3Config
 				t := time.Now()
-				s3FileKey := s3Config.Path
+				var s3FileKey string
 				if s3Config.Path == "" {
 					s3FileKey = filename
-				} else if !strings.Contains(s3Config.Path, "{filename}") {
-					s3FileKey = path.Join(s3Config.Path, filename)
 				} else {
-					s3FileKey = strings.ReplaceAll(s3FileKey, "{filename}", filename)
-					s3FileKey = strings.ReplaceAll(s3FileKey, "{filetype}", filetype)
-					s3FileKey = strings.ReplaceAll(s3FileKey, "{timestamp}", fmt.Sprintf("%d", t.Unix()))
-					s3FileKey = strings.ReplaceAll(s3FileKey, "{year}", fmt.Sprintf("%d", t.Year()))
-					s3FileKey = strings.ReplaceAll(s3FileKey, "{month}", fmt.Sprintf("%02d", t.Month()))
-					s3FileKey = strings.ReplaceAll(s3FileKey, "{day}", fmt.Sprintf("%02d", t.Day()))
-					s3FileKey = strings.ReplaceAll(s3FileKey, "{hour}", fmt.Sprintf("%02d", t.Hour()))
-					s3FileKey = strings.ReplaceAll(s3FileKey, "{minute}", fmt.Sprintf("%02d", t.Minute()))
-					s3FileKey = strings.ReplaceAll(s3FileKey, "{second}", fmt.Sprintf("%02d", t.Second()))
+					s3FileKey = fileKeyPattern.ReplaceAllStringFunc(s3Config.Path, func(s string) string {
+						switch s {
+						case "{filename}":
+							return filename
+						case "{filetype}":
+							return filetype
+						case "{timestamp}":
+							return fmt.Sprintf("%d", t.Unix())
+						case "{year}":
+							return fmt.Sprintf("%d", t.Year())
+						case "{month}":
+							return fmt.Sprintf("%02d", t.Month())
+						case "{day}":
+							return fmt.Sprintf("%02d", t.Day())
+						case "{hour}":
+							return fmt.Sprintf("%02d", t.Hour())
+						case "{minute}":
+							return fmt.Sprintf("%02d", t.Minute())
+						case "{second}":
+							return fmt.Sprintf("%02d", t.Second())
+						}
+						return s
+					})
+
+					if !strings.Contains(s3Config.Path, "{filename}") {
+						s3FileKey = path.Join(s3FileKey, filename)
+					}
 				}
+
 				s3client, err := s3.NewClient(ctx, &s3.Config{
 					AccessKey: s3Config.AccessKey,
 					SecretKey: s3Config.SecretKey,