diff options
Diffstat (limited to 'modules/util/util.go')
| -rw-r--r-- | modules/util/util.go | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/modules/util/util.go b/modules/util/util.go index 9d5e6c1e89..cc25539967 100644 --- a/modules/util/util.go +++ b/modules/util/util.go @@ -6,6 +6,7 @@ package util import ( "bytes" "crypto/rand" + "encoding/base64" "fmt" "math/big" "strconv" @@ -261,3 +262,13 @@ func ToFloat64(number any) (float64, error) { func ToPointer[T any](val T) *T { return &val } + +func Base64FixedDecode(encoding *base64.Encoding, src []byte, length int) ([]byte, error) { + decoded := make([]byte, encoding.DecodedLen(len(src))+3) + if n, err := encoding.Decode(decoded, src); err != nil { + return nil, err + } else if n != length { + return nil, fmt.Errorf("invalid base64 decoded length: %d, expects: %d", n, length) + } + return decoded[:length], nil +} |