frostfs-node/cmd/frostfs-cli/internal/common/token.go

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package common
import (
"encoding/json"
"errors"
"fmt"
"os"
commonCmd "github.com/TrueCloudLab/frostfs-node/cmd/internal/common"
"github.com/TrueCloudLab/frostfs-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)
commonCmd.ExitOnErr(cmd, "", err)
if len(path) == 0 {
return nil
}
PrintVerbose(cmd, "Reading bearer token from file [%s]...", path)
var tok bearer.Token
err = ReadBinaryOrJSON(cmd, &tok, path)
commonCmd.ExitOnErr(cmd, "invalid bearer token: %v", err)
return &tok
}
// BinaryOrJSON is an interface of entities which provide json.Unmarshaler
// and FrostFS 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(cmd *cobra.Command, dst BinaryOrJSON, fPath string) error {
PrintVerbose(cmd, "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(cmd, "Trying to decode binary...")
err = dst.Unmarshal(data)
if err != nil {
PrintVerbose(cmd, "Failed to decode binary: %v", err)
PrintVerbose(cmd, "Trying to decode JSON...")
err = dst.UnmarshalJSON(data)
if err != nil {
PrintVerbose(cmd, "Failed to decode JSON: %v", err)
return errors.New("invalid format")
}
}
return nil
}