package common import ( "encoding/json" "errors" "fmt" "os" "github.com/nspcc-dev/neofs-sdk-go/bearer" "github.com/spf13/cobra" ) // ReadBearerToken reads bearer token from the path provided in a specified flag. func ReadBearerToken(cmd *cobra.Command, flagname string) *bearer.Token { path, err := cmd.Flags().GetString(flagname) ExitOnErr(cmd, "", err) if len(path) == 0 { return nil } PrintVerbose("Reading bearer token from file [%s]...", path) var tok bearer.Token err = ReadBinaryOrJSON(&tok, path) ExitOnErr(cmd, "invalid bearer token: %v", err) return &tok } // BinaryOrJSON is an interface of entities which provide json.Unmarshaler // and NeoFS binary decoder. type BinaryOrJSON interface { Unmarshal([]byte) error json.Unmarshaler } // ReadBinaryOrJSON reads file data using provided path and decodes // BinaryOrJSON from the data. func ReadBinaryOrJSON(dst BinaryOrJSON, fPath string) error { PrintVerbose("Reading file [%s]...", fPath) // try to read session token from file data, err := os.ReadFile(fPath) if err != nil { return fmt.Errorf("read file <%s>: %w", fPath, err) } PrintVerbose("Trying to decode binary...") err = dst.Unmarshal(data) if err != nil { PrintVerbose("Failed to decode binary: %v", err) PrintVerbose("Trying to decode JSON...") err = dst.UnmarshalJSON(data) if err != nil { PrintVerbose("Failed to decode JSON: %v", err) return errors.New("invalid format") } } return nil }