Imports github.com/oxfeeefeee/appgo github.com/qiniu/api.v6/auth/digest github.com/qiniu/api.v6/conf github.com/qiniu/api.v6/io github.com/qiniu/api.v6/rs github.com/qiniu/api.v6/url Standard library imports crypto/hmac crypto/sha1 encoding/base64 io strconv strings