27 lines
560 B
Go
27 lines
560 B
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
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]
|
|
}
|