fix: encode filename when using url prefix for resources (#2829)

* fix: encode filename when using url prefix for resources

* fix: only encode the last parts of filename

* fix: encode all parts in filepath

Author: mudkipme

plugin/storage/s3/s3.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"net/url"
 	"strings"
 
 	"github.com/aws/aws-sdk-go-v2/aws"
@@ -83,7 +84,11 @@ func (client *Client) UploadFile(ctx context.Context, filename string, fileType
 	link := uploadOutput.Location
 	// If url prefix is set, use it as the file link.
 	if client.Config.URLPrefix != "" {
-		link = fmt.Sprintf("%s/%s%s", client.Config.URLPrefix, filename, client.Config.URLSuffix)
+		parts := strings.Split(filename, "/")
+		for i := range parts {
+			parts[i] = url.PathEscape(parts[i])
+		}
+		link = fmt.Sprintf("%s/%s%s", client.Config.URLPrefix, strings.Join(parts, "/"), client.Config.URLSuffix)
 	}
 	if link == "" {
 		return "", errors.New("failed to get file link")