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gitea/modules/packages/container/oci/digest.go

27 lines
560 B

// 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]
}