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forgejo/modules/packages/container/oci/digest.go
flynnnnnnnnnn e81ccc406b
Implement FSFE REUSE for golang files (#21840)
Change all license headers to comply with REUSE specification.

Fix #16132

Co-authored-by: flynnnnnnnnnn <flynnnnnnnnnn@github>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
2022-11-27 18:20:29 +00:00

27 lines
488 B
Go

// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package oci
import (
"regexp"
"strings"
)
var digestPattern = regexp.MustCompile(`\Asha256:[a-f0-9]{64}\z`)
type Digest string
// Validate checks if the digest has a valid SHA256 signature
func (d Digest) Validate() bool {
return digestPattern.MatchString(string(d))
}
func (d Digest) Hash() string {
p := strings.SplitN(string(d), ":", 2)
if len(p) != 2 {
return ""
}
return p[1]
}