constellation/internal/license/file.go
Moritz Sanft 4d6a7fa759
license: refactor license check to be agnostic of input (#2659)
* license: refactor license check to be agnostic of input

* license: remove unused code

* cli: only check license file in enterprise version

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>

* bazel: fix enterprise CLI build

* bazel: add keep directive

* Update internal/constellation/apply.go

Co-authored-by: Daniel Weiße <66256922+daniel-weisse@users.noreply.github.com>

* license: check for return value

---------

Signed-off-by: Moritz Sanft <58110325+msanft@users.noreply.github.com>
Co-authored-by: Daniel Weiße <66256922+daniel-weisse@users.noreply.github.com>
2023-12-01 08:37:52 +01:00

28 lines
682 B
Go

/*
Copyright (c) Edgeless Systems GmbH
SPDX-License-Identifier: AGPL-3.0-only
*/
package license
import (
"encoding/base64"
"fmt"
)
// FromBytes reads the given license bytes and returns it as a string.
func FromBytes(license []byte) (string, error) {
maxSize := base64.StdEncoding.DecodedLen(len(license))
decodedLicense := make([]byte, maxSize)
n, err := base64.StdEncoding.Decode(decodedLicense, license)
if err != nil {
return "", fmt.Errorf("unable to base64 decode license file: %w", err)
}
if n != 36 { // length of UUID
return "", fmt.Errorf("license file corrupt: wrong length")
}
decodedLicense = decodedLicense[:n]
return string(decodedLicense), nil
}