Imports github.com/jinzhu/gorm github.com/pkg/errors Standard library imports bytes context crypto/hmac crypto/sha1 encoding/base64 fmt go-common/app/admin/main/upload/conf go-common/app/admin/main/upload/dao go-common/app/admin/main/upload/model go-common/library/database/orm go-common/library/ecode go-common/library/log hash io/ioutil net/http strconv time